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generic: 6.1: sync mt7530 DSA driver with upstream 

Backport lots upstream changes, many of them fixes, for the mt7530 DSA
driver. Some of them may or may not find they way into Linux 6.1
stable, some certainly won't because they are fixes for backported
commits which aren't even present in Linux 6.1 upstream.

Apart from adding new patches, also remove mutated patch
723-net-mt7531-ensure-all-MACs-are-powered-down-before-r.patch
which should never have been added for Linux 6.1 -- it was applied
already upstream but coincidentally would fuzzy-apply in the wrong
place as well (for MT7530 instead of MT7531). While that didn't really
hurt anyone it is just unneeded.

The other deleted patch
795-mt7530-register-OF-node-for-internal-MDIO-bus.patch
has been replaced by an equivalent commit with a more complete patch
description by upstream maintainer Arınç Ünal.

The remaining differences compared to the upstream driver are:
 * C22/C45 MDIO ops aren't split
   Upstream did that, backporting it would require making changes to
   *all* DSA drivers
 * 'slave' -> 'user', 'master' -> 'conduit' language change in DSA
 * support for selecting preferred CPU port on MT7531
   Also this would require too many DSA framework changes potentially
   affecting other devices. If we ever really use Linux 6.1 in a
   release (I hope not) we can still reconsider to make the effort to
   backport that.

In addition to some minor bug fixes and style improvements the switch
should now behave more conformant when it comes to link-local frames,
and we will again be able to cleanly pick patches from upstream.

MAINTAIERS NOTE:
Three patches are already part of Linux stable and should be removed with
the next minor kernel version bump:
789-STABLE-01-net-dsa-mt7530-prevent-possible-incorrect-XTAL-frequ.patch
789-STABLE-02-net-dsa-mt7530-fix-link-local-frames-that-ingress-vl.patch
789-STABLE-03-net-dsa-mt7530-fix-handling-of-all-link-local-frames.patch

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit is contained in:
Daniel Golle 2024-04-09 23:33:05 +01:00
parent d668c74fe6
commit 401a6ccfaf
52 changed files with 3340 additions and 256 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

172
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From be4512b9ac6fc53e1ca8daccbda84f643215c547 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Thu, 14 Mar 2024 12:28:35 +0300
Subject: [PATCH 1/3] net: dsa: mt7530: prevent possible incorrect XTAL
frequency selection
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
[ Upstream commit f490c492e946d8ffbe65ad4efc66de3c5ede30a4 ]
On MT7530, the HT_XTAL_FSEL field of the HWTRAP register stores a 2-bit
value that represents the frequency of the crystal oscillator connected to
the switch IC. The field is populated by the state of the ESW_P4_LED_0 and
ESW_P4_LED_0 pins, which is done right after reset is deasserted.
ESW_P4_LED_0 ESW_P3_LED_0 Frequency
-----------------------------------------
0 0 Reserved
0 1 20MHz
1 0 40MHz
1 1 25MHz
On MT7531, the XTAL25 bit of the STRAP register stores this. The LAN0LED0
pin is used to populate the bit. 25MHz when the pin is high, 40MHz when
it's low.
These pins are also used with LEDs, therefore, their state can be set to
something other than the bootstrapping configuration. For example, a link
may be established on port 3 before the DSA subdriver takes control of the
switch which would set ESW_P3_LED_0 to high.
Currently on mt7530_setup() and mt7531_setup(), 1000 - 1100 usec delay is
described between reset assertion and deassertion. Some switch ICs in real
life conditions cannot always have these pins set back to the bootstrapping
configuration before reset deassertion in this amount of delay. This causes
wrong crystal frequency to be selected which puts the switch in a
nonfunctional state after reset deassertion.
The tests below are conducted on an MT7530 with a 40MHz crystal oscillator
by Justin Swartz.
With a cable from an active peer connected to port 3 before reset, an
incorrect crystal frequency (0b11 = 25MHz) is selected:
[1] [3] [5]
: : :
_____________________________ __________________
ESW_P4_LED_0 |_______|
_____________________________
ESW_P3_LED_0 |__________________________
: : : :
: : [4]...:
: :
[2]................:
[1] Reset is asserted.
[2] Period of 1000 - 1100 usec.
[3] Reset is deasserted.
[4] Period of 315 usec. HWTRAP register is populated with incorrect
XTAL frequency.
[5] Signals reflect the bootstrapped configuration.
Increase the delay between reset_control_assert() and
reset_control_deassert(), and gpiod_set_value_cansleep(priv->reset, 0) and
gpiod_set_value_cansleep(priv->reset, 1) to 5000 - 5100 usec. This amount
ensures a higher possibility that the switch IC will have these pins back
to the bootstrapping configuration before reset deassertion.
With a cable from an active peer connected to port 3 before reset, the
correct crystal frequency (0b10 = 40MHz) is selected:
[1] [2-1] [3] [5]
: : : :
_____________________________ __________________
ESW_P4_LED_0 |_______|
___________________ _______
ESW_P3_LED_0 |_________| |__________________
: : : : :
: [2-2]...: [4]...:
[2]................:
[1] Reset is asserted.
[2] Period of 5000 - 5100 usec.
[2-1] ESW_P3_LED_0 goes low.
[2-2] Remaining period of 5000 - 5100 usec.
[3] Reset is deasserted.
[4] Period of 310 usec. HWTRAP register is populated with bootstrapped
XTAL frequency.
[5] Signals reflect the bootstrapped configuration.
ESW_P3_LED_0 low period before reset deassertion:
5000 usec
- 5100 usec
TEST RESET HOLD
# (usec)
---------------------
1 5410
2 5440
3 4375
4 5490
5 5475
6 4335
7 4370
8 5435
9 4205
10 4335
11 3750
12 3170
13 4395
14 4375
15 3515
16 4335
17 4220
18 4175
19 4175
20 4350
Min 3170
Max 5490
Median 4342.500
Avg 4466.500
Revert commit 2920dd92b980 ("net: dsa: mt7530: disable LEDs before reset").
Changing the state of pins via reset assertion is simpler and more
efficient than doing so by setting the LED controller off.
Fixes: b8f126a8d543 ("net-next: dsa: add dsa support for Mediatek MT7530 switch")
Fixes: c288575f7810 ("net: dsa: mt7530: Add the support of MT7531 switch")
Co-developed-by: Justin Swartz <justin.swartz@risingedge.co.za>
Signed-off-by: Justin Swartz <justin.swartz@risingedge.co.za>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/dsa/mt7530.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2187,11 +2187,11 @@ mt7530_setup(struct dsa_switch *ds)
*/
if (priv->mcm) {
reset_control_assert(priv->rstc);
- usleep_range(1000, 1100);
+ usleep_range(5000, 5100);
reset_control_deassert(priv->rstc);
} else {
gpiod_set_value_cansleep(priv->reset, 0);
- usleep_range(1000, 1100);
+ usleep_range(5000, 5100);
gpiod_set_value_cansleep(priv->reset, 1);
}
@@ -2401,11 +2401,11 @@ mt7531_setup(struct dsa_switch *ds)
*/
if (priv->mcm) {
reset_control_assert(priv->rstc);
- usleep_range(1000, 1100);
+ usleep_range(5000, 5100);
reset_control_deassert(priv->rstc);
} else {
gpiod_set_value_cansleep(priv->reset, 0);
- usleep_range(1000, 1100);
+ usleep_range(5000, 5100);
gpiod_set_value_cansleep(priv->reset, 1);
}

173
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From f1fa919ea59655f73cb3972264e157b8831ba546 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Thu, 14 Mar 2024 12:33:41 +0300
Subject: [PATCH 2/3] net: dsa: mt7530: fix link-local frames that ingress vlan
filtering ports
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
[ Upstream commit e8bf353577f382c7066c661fed41b2adc0fc7c40 ]
Whether VLAN-aware or not, on every VID VLAN table entry that has the CPU
port as a member of it, frames are set to egress the CPU port with the VLAN
tag stacked. This is so that VLAN tags can be appended after hardware
special tag (called DSA tag in the context of Linux drivers).
For user ports on a VLAN-unaware bridge, frame ingressing the user port
egresses CPU port with only the special tag.
For user ports on a VLAN-aware bridge, frame ingressing the user port
egresses CPU port with the special tag and the VLAN tag.
This causes issues with link-local frames, specifically BPDUs, because the
software expects to receive them VLAN-untagged.
There are two options to make link-local frames egress untagged. Setting
CONSISTENT or UNTAGGED on the EG_TAG bits on the relevant register.
CONSISTENT means frames egress exactly as they ingress. That means
egressing with the VLAN tag they had at ingress or egressing untagged if
they ingressed untagged. Although link-local frames are not supposed to be
transmitted VLAN-tagged, if they are done so, when egressing through a CPU
port, the special tag field will be broken.
BPDU egresses CPU port with VLAN tag egressing stacked, received on
software:
00:01:25.104821 AF Unknown (382365846), length 106:
| STAG | | VLAN |
0x0000: 0000 6c27 614d 4143 0001 0000 8100 0001 ..l'aMAC........
0x0010: 0026 4242 0300 0000 0000 0000 6c27 614d .&BB........l'aM
0x0020: 4143 0000 0000 0000 6c27 614d 4143 0000 AC......l'aMAC..
0x0030: 0000 1400 0200 0f00 0000 0000 0000 0000 ................
BPDU egresses CPU port with VLAN tag egressing untagged, received on
software:
00:23:56.628708 AF Unknown (25215488), length 64:
| STAG |
0x0000: 0000 6c27 614d 4143 0001 0000 0026 4242 ..l'aMAC.....&BB
0x0010: 0300 0000 0000 0000 6c27 614d 4143 0000 ........l'aMAC..
0x0020: 0000 0000 6c27 614d 4143 0000 0000 1400 ....l'aMAC......
0x0030: 0200 0f00 0000 0000 0000 0000 ............
BPDU egresses CPU port with VLAN tag egressing tagged, received on
software:
00:01:34.311963 AF Unknown (25215488), length 64:
| Mess |
0x0000: 0000 6c27 614d 4143 0001 0001 0026 4242 ..l'aMAC.....&BB
0x0010: 0300 0000 0000 0000 6c27 614d 4143 0000 ........l'aMAC..
0x0020: 0000 0000 6c27 614d 4143 0000 0000 1400 ....l'aMAC......
0x0030: 0200 0f00 0000 0000 0000 0000 ............
To prevent confusing the software, force the frame to egress UNTAGGED
instead of CONSISTENT. This way, frames can't possibly be received TAGGED
by software which would have the special tag field broken.
VLAN Tag Egress Procedure
For all frames, one of these options set the earliest in this order will
apply to the frame:
- EG_TAG in certain registers for certain frames.
This will apply to frame with matching MAC DA or EtherType.
- EG_TAG in the address table.
This will apply to frame at its incoming port.
- EG_TAG in the PVC register.
This will apply to frame at its incoming port.
- EG_CON and [EG_TAG per port] in the VLAN table.
This will apply to frame at its outgoing port.
- EG_TAG in the PCR register.
This will apply to frame at its outgoing port.
EG_TAG in certain registers for certain frames:
PPPoE Discovery_ARP/RARP: PPP_EG_TAG and ARP_EG_TAG in the APC register.
IGMP_MLD: IGMP_EG_TAG and MLD_EG_TAG in the IMC register.
BPDU and PAE: BPDU_EG_TAG and PAE_EG_TAG in the BPC register.
REV_01 and REV_02: R01_EG_TAG and R02_EG_TAG in the RGAC1 register.
REV_03 and REV_0E: R03_EG_TAG and R0E_EG_TAG in the RGAC2 register.
REV_10 and REV_20: R10_EG_TAG and R20_EG_TAG in the RGAC3 register.
REV_21 and REV_UN: R21_EG_TAG and RUN_EG_TAG in the RGAC4 register.
With this change, it can be observed that a bridge interface with stp_state
and vlan_filtering enabled will properly block ports now.
Fixes: b8f126a8d543 ("net-next: dsa: add dsa support for Mediatek MT7530 switch")
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/dsa/mt7530.c | 23 +++++++++++++++--------
drivers/net/dsa/mt7530.h | 9 ++++++++-
2 files changed, 23 insertions(+), 9 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -1001,16 +1001,23 @@ unlock_exit:
static void
mt753x_trap_frames(struct mt7530_priv *priv)
{
- /* Trap BPDUs to the CPU port(s) */
- mt7530_rmw(priv, MT753X_BPC, MT753X_BPDU_PORT_FW_MASK,
+ /* Trap 802.1X PAE frames and BPDUs to the CPU port(s) and egress them
+ * VLAN-untagged.
+ */
+ mt7530_rmw(priv, MT753X_BPC, MT753X_PAE_EG_TAG_MASK |
+ MT753X_PAE_PORT_FW_MASK | MT753X_BPDU_EG_TAG_MASK |
+ MT753X_BPDU_PORT_FW_MASK,
+ MT753X_PAE_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
+ MT753X_PAE_PORT_FW(MT753X_BPDU_CPU_ONLY) |
+ MT753X_BPDU_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
MT753X_BPDU_CPU_ONLY);
- /* Trap 802.1X PAE frames to the CPU port(s) */
- mt7530_rmw(priv, MT753X_BPC, MT753X_PAE_PORT_FW_MASK,
- MT753X_PAE_PORT_FW(MT753X_BPDU_CPU_ONLY));
-
- /* Trap LLDP frames with :0E MAC DA to the CPU port(s) */
- mt7530_rmw(priv, MT753X_RGAC2, MT753X_R0E_PORT_FW_MASK,
+ /* Trap LLDP frames with :0E MAC DA to the CPU port(s) and egress them
+ * VLAN-untagged.
+ */
+ mt7530_rmw(priv, MT753X_RGAC2, MT753X_R0E_EG_TAG_MASK |
+ MT753X_R0E_PORT_FW_MASK,
+ MT753X_R0E_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
MT753X_R0E_PORT_FW(MT753X_BPDU_CPU_ONLY));
}
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -63,12 +63,18 @@ enum mt753x_id {
/* Registers for BPDU and PAE frame control*/
#define MT753X_BPC 0x24
-#define MT753X_BPDU_PORT_FW_MASK GENMASK(2, 0)
+#define MT753X_PAE_EG_TAG_MASK GENMASK(24, 22)
+#define MT753X_PAE_EG_TAG(x) FIELD_PREP(MT753X_PAE_EG_TAG_MASK, x)
#define MT753X_PAE_PORT_FW_MASK GENMASK(18, 16)
#define MT753X_PAE_PORT_FW(x) FIELD_PREP(MT753X_PAE_PORT_FW_MASK, x)
+#define MT753X_BPDU_EG_TAG_MASK GENMASK(8, 6)
+#define MT753X_BPDU_EG_TAG(x) FIELD_PREP(MT753X_BPDU_EG_TAG_MASK, x)
+#define MT753X_BPDU_PORT_FW_MASK GENMASK(2, 0)
/* Register for :03 and :0E MAC DA frame control */
#define MT753X_RGAC2 0x2c
+#define MT753X_R0E_EG_TAG_MASK GENMASK(24, 22)
+#define MT753X_R0E_EG_TAG(x) FIELD_PREP(MT753X_R0E_EG_TAG_MASK, x)
#define MT753X_R0E_PORT_FW_MASK GENMASK(18, 16)
#define MT753X_R0E_PORT_FW(x) FIELD_PREP(MT753X_R0E_PORT_FW_MASK, x)
@@ -251,6 +257,7 @@ enum mt7530_port_mode {
enum mt7530_vlan_port_eg_tag {
MT7530_VLAN_EG_DISABLED = 0,
MT7530_VLAN_EG_CONSISTENT = 1,
+ MT7530_VLAN_EG_UNTAGGED = 4,
};
enum mt7530_vlan_port_attr {

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@ -0,0 +1,133 @@
From 86c0c154a759f2af9612a04bdf29110f02dce956 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Thu, 14 Mar 2024 12:33:42 +0300
Subject: [PATCH 3/3] net: dsa: mt7530: fix handling of all link-local frames
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
[ Upstream commit 69ddba9d170bdaee1dc0eb4ced38d7e4bb7b92af ]
Currently, the MT753X switches treat frames with :01-0D and :0F MAC DAs as
regular multicast frames, therefore flooding them to user ports.
On page 205, section "8.6.3 Frame filtering" of the active standard, IEEE
Std 802.1Q™-2022, it is stated that frames with 01:80:C2:00:00:00-0F as MAC
DA must only be propagated to C-VLAN and MAC Bridge components. That means
VLAN-aware and VLAN-unaware bridges. On the switch designs with CPU ports,
these frames are supposed to be processed by the CPU (software). So we make
the switch only forward them to the CPU port. And if received from a CPU
port, forward to a single port. The software is responsible of making the
switch conform to the latter by setting a single port as destination port
on the special tag.
This switch intellectual property cannot conform to this part of the
standard fully. Whilst the REV_UN frame tag covers the remaining :04-0D and
:0F MAC DAs, it also includes :22-FF which the scope of propagation is not
supposed to be restricted for these MAC DAs.
Set frames with :01-03 MAC DAs to be trapped to the CPU port(s). Add a
comment for the remaining MAC DAs.
Note that the ingress port must have a PVID assigned to it for the switch
to forward untagged frames. A PVID is set by default on VLAN-aware and
VLAN-unaware ports. However, when the network interface that pertains to
the ingress port is attached to a vlan_filtering enabled bridge, the user
can remove the PVID assignment from it which would prevent the link-local
frames from being trapped to the CPU port. I am yet to see a way to forward
link-local frames while preventing other untagged frames from being
forwarded too.
Fixes: b8f126a8d543 ("net-next: dsa: add dsa support for Mediatek MT7530 switch")
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/dsa/mt7530.c | 37 +++++++++++++++++++++++++++++++++----
drivers/net/dsa/mt7530.h | 13 +++++++++++++
2 files changed, 46 insertions(+), 4 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -998,6 +998,21 @@ unlock_exit:
mutex_unlock(&priv->reg_mutex);
}
+/* On page 205, section "8.6.3 Frame filtering" of the active standard, IEEE Std
+ * 802.1Q™-2022, it is stated that frames with 01:80:C2:00:00:00-0F as MAC DA
+ * must only be propagated to C-VLAN and MAC Bridge components. That means
+ * VLAN-aware and VLAN-unaware bridges. On the switch designs with CPU ports,
+ * these frames are supposed to be processed by the CPU (software). So we make
+ * the switch only forward them to the CPU port. And if received from a CPU
+ * port, forward to a single port. The software is responsible of making the
+ * switch conform to the latter by setting a single port as destination port on
+ * the special tag.
+ *
+ * This switch intellectual property cannot conform to this part of the standard
+ * fully. Whilst the REV_UN frame tag covers the remaining :04-0D and :0F MAC
+ * DAs, it also includes :22-FF which the scope of propagation is not supposed
+ * to be restricted for these MAC DAs.
+ */
static void
mt753x_trap_frames(struct mt7530_priv *priv)
{
@@ -1012,13 +1027,27 @@ mt753x_trap_frames(struct mt7530_priv *p
MT753X_BPDU_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
MT753X_BPDU_CPU_ONLY);
- /* Trap LLDP frames with :0E MAC DA to the CPU port(s) and egress them
- * VLAN-untagged.
+ /* Trap frames with :01 and :02 MAC DAs to the CPU port(s) and egress
+ * them VLAN-untagged.
+ */
+ mt7530_rmw(priv, MT753X_RGAC1, MT753X_R02_EG_TAG_MASK |
+ MT753X_R02_PORT_FW_MASK | MT753X_R01_EG_TAG_MASK |
+ MT753X_R01_PORT_FW_MASK,
+ MT753X_R02_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
+ MT753X_R02_PORT_FW(MT753X_BPDU_CPU_ONLY) |
+ MT753X_R01_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
+ MT753X_BPDU_CPU_ONLY);
+
+ /* Trap frames with :03 and :0E MAC DAs to the CPU port(s) and egress
+ * them VLAN-untagged.
*/
mt7530_rmw(priv, MT753X_RGAC2, MT753X_R0E_EG_TAG_MASK |
- MT753X_R0E_PORT_FW_MASK,
+ MT753X_R0E_PORT_FW_MASK | MT753X_R03_EG_TAG_MASK |
+ MT753X_R03_PORT_FW_MASK,
MT753X_R0E_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
- MT753X_R0E_PORT_FW(MT753X_BPDU_CPU_ONLY));
+ MT753X_R0E_PORT_FW(MT753X_BPDU_CPU_ONLY) |
+ MT753X_R03_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
+ MT753X_BPDU_CPU_ONLY);
}
static int
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -71,12 +71,25 @@ enum mt753x_id {
#define MT753X_BPDU_EG_TAG(x) FIELD_PREP(MT753X_BPDU_EG_TAG_MASK, x)
#define MT753X_BPDU_PORT_FW_MASK GENMASK(2, 0)
+/* Register for :01 and :02 MAC DA frame control */
+#define MT753X_RGAC1 0x28
+#define MT753X_R02_EG_TAG_MASK GENMASK(24, 22)
+#define MT753X_R02_EG_TAG(x) FIELD_PREP(MT753X_R02_EG_TAG_MASK, x)
+#define MT753X_R02_PORT_FW_MASK GENMASK(18, 16)
+#define MT753X_R02_PORT_FW(x) FIELD_PREP(MT753X_R02_PORT_FW_MASK, x)
+#define MT753X_R01_EG_TAG_MASK GENMASK(8, 6)
+#define MT753X_R01_EG_TAG(x) FIELD_PREP(MT753X_R01_EG_TAG_MASK, x)
+#define MT753X_R01_PORT_FW_MASK GENMASK(2, 0)
+
/* Register for :03 and :0E MAC DA frame control */
#define MT753X_RGAC2 0x2c
#define MT753X_R0E_EG_TAG_MASK GENMASK(24, 22)
#define MT753X_R0E_EG_TAG(x) FIELD_PREP(MT753X_R0E_EG_TAG_MASK, x)
#define MT753X_R0E_PORT_FW_MASK GENMASK(18, 16)
#define MT753X_R0E_PORT_FW(x) FIELD_PREP(MT753X_R0E_PORT_FW_MASK, x)
+#define MT753X_R03_EG_TAG_MASK GENMASK(8, 6)
+#define MT753X_R03_EG_TAG(x) FIELD_PREP(MT753X_R03_EG_TAG_MASK, x)
+#define MT753X_R03_PORT_FW_MASK GENMASK(2, 0)
enum mt753x_bpdu_port_fw {
MT753X_BPDU_FOLLOW_MFC,

32
target/linux/generic/backport-6.1/790-01-v6.2-net-dsa-mt7530-remove-redundant-assignment.patch Normal file
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@ -0,0 +1,32 @@
From 27b692012840f658c84a3102c0aeca2676f03132 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Thu, 15 Dec 2022 03:47:59 +0000
Subject: [PATCH 01/48] net: dsa: mt7530: remove redundant assignment
Russell King correctly pointed out that the MAC_2500FD capability is
already added for port 5 (if not in RGMII mode) and port 6 (which only
supports SGMII) by mt7531_mac_port_get_caps. Remove the reduntant
setting of this capability flag which was added by a previous commit.
Fixes: e19de30d2080 ("net: dsa: mt7530: add support for in-band link status")
Reported-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://lore.kernel.org/r/Y5qY7x6la5TxZxzX@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/dsa/mt7530.c | 3 ---
1 file changed, 3 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -3010,9 +3010,6 @@ static void mt753x_phylink_get_caps(stru
config->mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE |
MAC_10 | MAC_100 | MAC_1000FD;
- if ((priv->id == ID_MT7531) && mt753x_is_mac_port(port))
- config->mac_capabilities |= MAC_2500FD;
-
/* This driver does not make use of the speed, duplex, pause or the
* advertisement in its mac_config, so it is safe to mark this driver
* as non-legacy.

81
target/linux/generic/backport-6.1/788-v6.3-net-dsa-mt7530-use-external-PCS-driver.patch → target/linux/generic/backport-6.1/790-02-v6.4-net-dsa-mt7530-use-external-PCS-driver.patch
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@ -1,60 +1,23 @@
From patchwork Thu Mar 9 10:57:44 2023
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
X-Patchwork-Submitter: Daniel Golle <daniel@makrotopia.org>
X-Patchwork-Id: 13167235
X-Patchwork-Delegate: kuba@kernel.org
Return-Path: <netdev-owner@vger.kernel.org>
Date: Thu, 9 Mar 2023 10:57:44 +0000
From 05dc5ea089f947a69a5db092ef4cad6a0f3c96ce Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
To: netdev@vger.kernel.org, linux-mediatek@lists.infradead.org,
linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
Russell King <linux@armlinux.org.uk>,
Heiner Kallweit <hkallweit1@gmail.com>,
Lorenzo Bianconi <lorenzo@kernel.org>,
Mark Lee <Mark-MC.Lee@mediatek.com>,
John Crispin <john@phrozen.org>, Felix Fietkau <nbd@nbd.name>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
DENG Qingfang <dqfext@gmail.com>,
Landen Chao <Landen.Chao@mediatek.com>,
Sean Wang <sean.wang@mediatek.com>,
Paolo Abeni <pabeni@redhat.com>,
Jakub Kicinski <kuba@kernel.org>,
Eric Dumazet <edumazet@google.com>,
"David S. Miller" <davem@davemloft.net>,
Vladimir Oltean <olteanv@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Andrew Lunn <andrew@lunn.ch>,
Vladimir Oltean <vladimir.oltean@nxp.com>
Cc: =?iso-8859-1?q?Bj=F8rn?= Mork <bjorn@mork.no>,
Frank Wunderlich <frank-w@public-files.de>,
Alexander Couzens <lynxis@fe80.eu>
Subject: [PATCH net-next v13 11/16] net: dsa: mt7530: use external PCS driver
Message-ID:
<2ac2ee40d3b0e705461b50613fda6a7edfdbc4b3.1678357225.git.daniel@makrotopia.org>
References: <cover.1678357225.git.daniel@makrotopia.org>
Date: Sun, 19 Mar 2023 12:58:43 +0000
Subject: [PATCH 02/48] net: dsa: mt7530: use external PCS driver
MIME-Version: 1.0
Content-Disposition: inline
In-Reply-To: <cover.1678357225.git.daniel@makrotopia.org>
Precedence: bulk
List-ID: <netdev.vger.kernel.org>
X-Mailing-List: netdev@vger.kernel.org
X-Patchwork-Delegate: kuba@kernel.org
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Implement regmap access wrappers, for now only to be used by the
pcs-mtk driver.
Make use of external PCS driver and drop the reduntant implementation
in mt7530.c.
pcs-mtk-lynxi driver.
Make use of this external PCS driver and drop the now reduntant
implementation in mt7530.c.
As a nice side effect the SGMII registers can now also more easily be
inspected for debugging via /sys/kernel/debug/regmap.
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Tested-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/dsa/Kconfig | 1 +
drivers/net/dsa/mt7530.c | 277 ++++++++++-----------------------------
@ -81,7 +44,7 @@ Tested-by: Frank Wunderlich <frank-w@public-files.de>
#include <linux/phylink.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
@@ -2615,128 +2616,11 @@ static int mt7531_rgmii_setup(struct mt7
@@ -2651,128 +2652,11 @@ static int mt7531_rgmii_setup(struct mt7
return 0;
}
@ -210,7 +173,7 @@ Tested-by: Frank Wunderlich <frank-w@public-files.de>
static int
mt7531_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
phy_interface_t interface)
@@ -2759,11 +2643,11 @@ mt7531_mac_config(struct dsa_switch *ds,
@@ -2795,11 +2679,11 @@ mt7531_mac_config(struct dsa_switch *ds,
phydev = dp->slave->phydev;
return mt7531_rgmii_setup(priv, port, interface, phydev);
case PHY_INTERFACE_MODE_SGMII:
@ -224,7 +187,7 @@ Tested-by: Frank Wunderlich <frank-w@public-files.de>
default:
return -EINVAL;
}
@@ -2788,11 +2672,11 @@ mt753x_phylink_mac_select_pcs(struct dsa
@@ -2824,11 +2708,11 @@ mt753x_phylink_mac_select_pcs(struct dsa
switch (interface) {
case PHY_INTERFACE_MODE_TRGMII:
@ -238,7 +201,7 @@ Tested-by: Frank Wunderlich <frank-w@public-files.de>
default:
return NULL;
}
@@ -3033,86 +2917,6 @@ static void mt7530_pcs_get_state(struct
@@ -3066,86 +2950,6 @@ static void mt7530_pcs_get_state(struct
state->pause |= MLO_PAUSE_TX;
}
@ -325,7 +288,7 @@ Tested-by: Frank Wunderlich <frank-w@public-files.de>
static int mt753x_pcs_config(struct phylink_pcs *pcs, unsigned int mode,
phy_interface_t interface,
const unsigned long *advertising,
@@ -3132,18 +2936,57 @@ static const struct phylink_pcs_ops mt75
@@ -3165,18 +2969,57 @@ static const struct phylink_pcs_ops mt75
.pcs_an_restart = mt7530_pcs_an_restart,
};
@ -389,7 +352,7 @@ Tested-by: Frank Wunderlich <frank-w@public-files.de>
int i, ret;
/* Initialise the PCS devices */
@@ -3151,8 +2994,6 @@ mt753x_setup(struct dsa_switch *ds)
@@ -3184,8 +3027,6 @@ mt753x_setup(struct dsa_switch *ds)
priv->pcs[i].pcs.ops = priv->info->pcs_ops;
priv->pcs[i].priv = priv;
priv->pcs[i].port = i;
@ -398,7 +361,7 @@ Tested-by: Frank Wunderlich <frank-w@public-files.de>
}
ret = priv->info->sw_setup(ds);
@@ -3167,6 +3008,16 @@ mt753x_setup(struct dsa_switch *ds)
@@ -3200,6 +3041,16 @@ mt753x_setup(struct dsa_switch *ds)
if (ret && priv->irq)
mt7530_free_irq_common(priv);
@ -415,7 +378,7 @@ Tested-by: Frank Wunderlich <frank-w@public-files.de>
return ret;
}
@@ -3258,7 +3109,7 @@ static const struct mt753x_info mt753x_t
@@ -3291,7 +3142,7 @@ static const struct mt753x_info mt753x_t
},
[ID_MT7531] = {
.id = ID_MT7531,
@ -424,7 +387,7 @@ Tested-by: Frank Wunderlich <frank-w@public-files.de>
.sw_setup = mt7531_setup,
.phy_read = mt7531_ind_phy_read,
.phy_write = mt7531_ind_phy_write,
@@ -3366,7 +3217,7 @@ static void
@@ -3399,7 +3250,7 @@ static void
mt7530_remove(struct mdio_device *mdiodev)
{
struct mt7530_priv *priv = dev_get_drvdata(&mdiodev->dev);
@ -433,7 +396,7 @@ Tested-by: Frank Wunderlich <frank-w@public-files.de>
if (!priv)
return;
@@ -3385,6 +3236,10 @@ mt7530_remove(struct mdio_device *mdiode
@@ -3418,6 +3269,10 @@ mt7530_remove(struct mdio_device *mdiode
mt7530_free_irq(priv);
dsa_unregister_switch(priv->ds);
@ -446,7 +409,7 @@ Tested-by: Frank Wunderlich <frank-w@public-files.de>
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -371,47 +371,8 @@ enum mt7530_vlan_port_acc_frm {
@@ -391,47 +391,8 @@ enum mt7530_vlan_port_acc_frm {
CCR_TX_OCT_CNT_BAD)
/* MT7531 SGMII register group */
@ -496,7 +459,7 @@ Tested-by: Frank Wunderlich <frank-w@public-files.de>
/* Register for system reset */
#define MT7530_SYS_CTRL 0x7000
@@ -710,13 +671,13 @@ struct mt7530_fdb {
@@ -730,13 +691,13 @@ struct mt7530_fdb {
* @pm: The matrix used to show all connections with the port.
* @pvid: The VLAN specified is to be considered a PVID at ingress. Any
* untagged frames will be assigned to the related VLAN.

4
target/linux/generic/backport-6.1/790-v6.4-0001-net-dsa-mt7530-make-some-noise-if-register-read-fail.patch → target/linux/generic/backport-6.1/790-03-v6.4-net-dsa-mt7530-make-some-noise-if-register-read-fail.patch
View File

@ -1,7 +1,7 @@
From c3552d3f85f06cf4b4818bd84c4fcc09d8d45165 Mon Sep 17 00:00:00 2001
From cafbb70e148e7a4e318dcc1e36a96643815b6245 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Mon, 3 Apr 2023 02:17:19 +0100
Subject: [PATCH 01/13] net: dsa: mt7530: make some noise if register read
Subject: [PATCH 03/48] net: dsa: mt7530: make some noise if register read
fails
Simply returning the negative error value instead of the read value

8
target/linux/generic/backport-6.1/790-v6.4-0002-net-dsa-mt7530-refactor-SGMII-PCS-creation.patch → target/linux/generic/backport-6.1/790-04-v6.4-net-dsa-mt7530-refactor-SGMII-PCS-creation.patch
View File

@ -1,7 +1,7 @@
From b896355fc4988216d4f38582d07add9252a795ae Mon Sep 17 00:00:00 2001
From 8f83ad87e2df26ddf9b8afd4d2873644a872d929 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Mon, 3 Apr 2023 02:17:30 +0100
Subject: [PATCH 02/13] net: dsa: mt7530: refactor SGMII PCS creation
Subject: [PATCH 04/48] net: dsa: mt7530: refactor SGMII PCS creation
Instead of macro templates use a dedidated function and allocated
regmap_config when creating the regmaps for the pcs-mtk-lynxi
@ -18,7 +18,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2968,26 +2968,56 @@ static const struct regmap_bus mt7531_re
@@ -3001,26 +3001,56 @@ static const struct regmap_bus mt7531_re
.reg_update_bits = mt7530_regmap_update_bits,
};
@ -88,7 +88,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
int i, ret;
/* Initialise the PCS devices */
@@ -3009,15 +3039,11 @@ mt753x_setup(struct dsa_switch *ds)
@@ -3042,15 +3072,11 @@ mt753x_setup(struct dsa_switch *ds)
if (ret && priv->irq)
mt7530_free_irq_common(priv);

10
target/linux/generic/backport-6.1/790-v6.4-0003-net-dsa-mt7530-use-unlocked-regmap-accessors.patch → target/linux/generic/backport-6.1/790-05-v6.4-net-dsa-mt7530-use-unlocked-regmap-accessors.patch
View File

@ -1,7 +1,7 @@
From 33396408776385f3d2f6069646169a6b5b28e3b3 Mon Sep 17 00:00:00 2001
From efb41b8e9b7bbb08ace1930373bff63d4f5cc6e2 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Mon, 3 Apr 2023 02:17:40 +0100
Subject: [PATCH 03/13] net: dsa: mt7530: use unlocked regmap accessors
Subject: [PATCH 05/48] net: dsa: mt7530: use unlocked regmap accessors
Instead of wrapping the locked register accessor functions, use the
unlocked variants and add locking wrapper functions to let regmap
@ -19,7 +19,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2941,7 +2941,7 @@ static int mt7530_regmap_read(void *cont
@@ -2974,7 +2974,7 @@ static int mt7530_regmap_read(void *cont
{
struct mt7530_priv *priv = context;
@ -28,7 +28,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
return 0;
};
@@ -2949,23 +2949,25 @@ static int mt7530_regmap_write(void *con
@@ -2982,23 +2982,25 @@ static int mt7530_regmap_write(void *con
{
struct mt7530_priv *priv = context;
@ -62,7 +62,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
};
static int
@@ -2991,6 +2993,9 @@ mt7531_create_sgmii(struct mt7530_priv *
@@ -3024,6 +3026,9 @@ mt7531_create_sgmii(struct mt7530_priv *
mt7531_pcs_config[i]->reg_stride = 4;
mt7531_pcs_config[i]->reg_base = MT7531_SGMII_REG_BASE(5 + i);
mt7531_pcs_config[i]->max_register = 0x17c;

18
target/linux/generic/backport-6.1/790-v6.4-0004-net-dsa-mt7530-use-regmap-to-access-switch-register-.patch → target/linux/generic/backport-6.1/790-06-v6.4-net-dsa-mt7530-use-regmap-to-access-switch-register-.patch
View File

@ -1,7 +1,7 @@
From 743cba4345cb366248f9d375c6a9e50243dc0677 Mon Sep 17 00:00:00 2001
From c7945d11a060797c31b3f47d9c9e515b0bf2082f Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Mon, 3 Apr 2023 02:17:52 +0100
Subject: [PATCH 04/13] net: dsa: mt7530: use regmap to access switch register
Subject: [PATCH 06/48] net: dsa: mt7530: use regmap to access switch register
space
Use regmap API to access the switch register space.
@ -133,7 +133,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
}
static void
@@ -2937,22 +2958,6 @@ static const struct phylink_pcs_ops mt75
@@ -2970,22 +2991,6 @@ static const struct phylink_pcs_ops mt75
.pcs_an_restart = mt7530_pcs_an_restart,
};
@ -156,7 +156,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
static void
mt7530_mdio_regmap_lock(void *mdio_lock)
{
@@ -2965,7 +2970,7 @@ mt7530_mdio_regmap_unlock(void *mdio_loc
@@ -2998,7 +3003,7 @@ mt7530_mdio_regmap_unlock(void *mdio_loc
mutex_unlock(mdio_lock);
}
@ -165,7 +165,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
.reg_write = mt7530_regmap_write,
.reg_read = mt7530_regmap_read,
};
@@ -2998,7 +3003,7 @@ mt7531_create_sgmii(struct mt7530_priv *
@@ -3031,7 +3036,7 @@ mt7531_create_sgmii(struct mt7530_priv *
mt7531_pcs_config[i]->lock_arg = &priv->bus->mdio_lock;
regmap = devm_regmap_init(priv->dev,
@ -174,7 +174,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
mt7531_pcs_config[i]);
if (IS_ERR(regmap)) {
ret = PTR_ERR(regmap);
@@ -3163,6 +3168,7 @@ MODULE_DEVICE_TABLE(of, mt7530_of_match)
@@ -3196,6 +3201,7 @@ MODULE_DEVICE_TABLE(of, mt7530_of_match)
static int
mt7530_probe(struct mdio_device *mdiodev)
{
@ -182,7 +182,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
struct mt7530_priv *priv;
struct device_node *dn;
@@ -3242,6 +3248,21 @@ mt7530_probe(struct mdio_device *mdiodev
@@ -3275,6 +3281,21 @@ mt7530_probe(struct mdio_device *mdiodev
mutex_init(&priv->reg_mutex);
dev_set_drvdata(&mdiodev->dev, priv);
@ -206,7 +206,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -754,6 +754,7 @@ struct mt753x_info {
@@ -774,6 +774,7 @@ struct mt753x_info {
* @dev: The device pointer
* @ds: The pointer to the dsa core structure
* @bus: The bus used for the device and built-in PHY
@ -214,7 +214,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
* @rstc: The pointer to reset control used by MCM
* @core_pwr: The power supplied into the core
* @io_pwr: The power supplied into the I/O
@@ -774,6 +775,7 @@ struct mt7530_priv {
@@ -794,6 +795,7 @@ struct mt7530_priv {
struct device *dev;
struct dsa_switch *ds;
struct mii_bus *bus;

10
target/linux/generic/backport-6.1/790-v6.4-0005-net-dsa-mt7530-move-SGMII-PCS-creation-to-mt7530_pro.patch → target/linux/generic/backport-6.1/790-07-v6.4-net-dsa-mt7530-move-SGMII-PCS-creation-to-mt7530_pro.patch
View File

@ -1,7 +1,7 @@
From f3cf1d06e2aef644b426c23b4bb570780b1f8d47 Mon Sep 17 00:00:00 2001
From 6b64b5bc3045a7e1ee5278df4f4ff315cd43d88a Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Mon, 3 Apr 2023 02:18:04 +0100
Subject: [PATCH 05/13] net: dsa: mt7530: move SGMII PCS creation to
Subject: [PATCH 07/48] net: dsa: mt7530: move SGMII PCS creation to
mt7530_probe function
Move creating the SGMII PCS from mt753x_setup() to the more appropriate
@ -18,7 +18,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -3049,12 +3049,6 @@ mt753x_setup(struct dsa_switch *ds)
@@ -3082,12 +3082,6 @@ mt753x_setup(struct dsa_switch *ds)
if (ret && priv->irq)
mt7530_free_irq_common(priv);
@ -31,7 +31,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
return ret;
}
@@ -3171,6 +3165,7 @@ mt7530_probe(struct mdio_device *mdiodev
@@ -3204,6 +3198,7 @@ mt7530_probe(struct mdio_device *mdiodev
static struct regmap_config *regmap_config;
struct mt7530_priv *priv;
struct device_node *dn;
@ -39,7 +39,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
dn = mdiodev->dev.of_node;
@@ -3263,6 +3258,12 @@ mt7530_probe(struct mdio_device *mdiodev
@@ -3296,6 +3291,12 @@ mt7530_probe(struct mdio_device *mdiodev
if (IS_ERR(priv->regmap))
return PTR_ERR(priv->regmap);

16
target/linux/generic/backport-6.1/790-v6.4-0006-net-dsa-mt7530-introduce-mutex-helpers.patch → target/linux/generic/backport-6.1/790-08-v6.4-net-dsa-mt7530-introduce-mutex-helpers.patch
View File

@ -1,7 +1,7 @@
From e4729ae7c095c0c87794bff47ea43e35d69de986 Mon Sep 17 00:00:00 2001
From 504d39cbda402df3e6fd123d040520393b6a6297 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Mon, 3 Apr 2023 02:18:16 +0100
Subject: [PATCH 06/13] net: dsa: mt7530: introduce mutex helpers
Subject: [PATCH 08/48] net: dsa: mt7530: introduce mutex helpers
As the MDIO bus lock only needs to be involved if actually operating
on an MDIO-connected switch we will need to skip locking for built-in
@ -214,7 +214,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
return ret;
}
@@ -1125,7 +1125,6 @@ static int
@@ -1161,7 +1161,6 @@ static int
mt7530_port_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
{
struct mt7530_priv *priv = ds->priv;
@ -222,7 +222,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
int length;
u32 val;
@@ -1136,7 +1135,7 @@ mt7530_port_change_mtu(struct dsa_switch
@@ -1172,7 +1171,7 @@ mt7530_port_change_mtu(struct dsa_switch
if (!dsa_is_cpu_port(ds, port))
return 0;
@ -231,7 +231,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
val = mt7530_mii_read(priv, MT7530_GMACCR);
val &= ~MAX_RX_PKT_LEN_MASK;
@@ -1157,7 +1156,7 @@ mt7530_port_change_mtu(struct dsa_switch
@@ -1193,7 +1192,7 @@ mt7530_port_change_mtu(struct dsa_switch
mt7530_mii_write(priv, MT7530_GMACCR, val);
@ -240,7 +240,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
return 0;
}
@@ -1958,10 +1957,10 @@ mt7530_irq_thread_fn(int irq, void *dev_
@@ -1994,10 +1993,10 @@ mt7530_irq_thread_fn(int irq, void *dev_
u32 val;
int p;
@ -253,7 +253,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
for (p = 0; p < MT7530_NUM_PHYS; p++) {
if (BIT(p) & val) {
@@ -1997,7 +1996,7 @@ mt7530_irq_bus_lock(struct irq_data *d)
@@ -2033,7 +2032,7 @@ mt7530_irq_bus_lock(struct irq_data *d)
{
struct mt7530_priv *priv = irq_data_get_irq_chip_data(d);
@ -262,7 +262,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
}
static void
@@ -2006,7 +2005,7 @@ mt7530_irq_bus_sync_unlock(struct irq_da
@@ -2042,7 +2041,7 @@ mt7530_irq_bus_sync_unlock(struct irq_da
struct mt7530_priv *priv = irq_data_get_irq_chip_data(d);
mt7530_mii_write(priv, MT7530_SYS_INT_EN, priv->irq_enable);

6
target/linux/generic/backport-6.1/790-v6.4-0007-net-dsa-mt7530-move-p5_intf_modes-function-to-mt7530.patch → target/linux/generic/backport-6.1/790-09-v6.4-net-dsa-mt7530-move-p5_intf_modes-function-to-mt7530.patch
View File

@ -1,7 +1,7 @@
From 0d7ae94a0c581f86939bebec0b6ccd66e640d1d8 Mon Sep 17 00:00:00 2001
From dbef24b66807eef7498740fa8b8441bee64a96c4 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Mon, 3 Apr 2023 02:18:28 +0100
Subject: [PATCH 07/13] net: dsa: mt7530: move p5_intf_modes() function to
Subject: [PATCH 09/48] net: dsa: mt7530: move p5_intf_modes() function to
mt7530.c
In preparation of splitting mt7530.c into a driver for MDIO-connected
@ -48,7 +48,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
struct mt7530_priv *priv = ds->priv;
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -689,24 +689,6 @@ enum p5_interface_select {
@@ -709,24 +709,6 @@ enum p5_interface_select {
P5_INTF_SEL_GMAC5_SGMII,
};

10
target/linux/generic/backport-6.1/790-v6.4-0008-net-dsa-mt7530-introduce-mt7530_probe_common-helper-.patch → target/linux/generic/backport-6.1/790-10-v6.4-net-dsa-mt7530-introduce-mt7530_probe_common-helper-.patch
View File

@ -1,7 +1,7 @@
From 4d632005c90e253c000d0db73b7cdb9d8dc2e2dd Mon Sep 17 00:00:00 2001
From a0c6527a38d518ff175c1b6ce248e9b06cc98d3b Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Mon, 3 Apr 2023 02:18:39 +0100
Subject: [PATCH 08/13] net: dsa: mt7530: introduce mt7530_probe_common helper
Subject: [PATCH 10/48] net: dsa: mt7530: introduce mt7530_probe_common helper
function
Move commonly used parts from mt7530_probe into new mt7530_probe_common
@ -17,7 +17,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -3177,44 +3177,21 @@ static const struct of_device_id mt7530_
@@ -3210,44 +3210,21 @@ static const struct of_device_id mt7530_
MODULE_DEVICE_TABLE(of, mt7530_of_match);
static int
@ -67,7 +67,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
if (!priv->info)
return -EINVAL;
@@ -3228,23 +3205,53 @@ mt7530_probe(struct mdio_device *mdiodev
@@ -3261,23 +3238,53 @@ mt7530_probe(struct mdio_device *mdiodev
return -EINVAL;
priv->id = priv->info->id;
@ -131,7 +131,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
priv->reset = devm_gpiod_get_optional(&mdiodev->dev, "reset",
GPIOD_OUT_LOW);
if (IS_ERR(priv->reset)) {
@@ -3253,12 +3260,15 @@ mt7530_probe(struct mdio_device *mdiodev
@@ -3286,12 +3293,15 @@ mt7530_probe(struct mdio_device *mdiodev
}
}

8
target/linux/generic/backport-6.1/790-v6.4-0009-net-dsa-mt7530-introduce-mt7530_remove_common-helper.patch → target/linux/generic/backport-6.1/790-11-v6.4-net-dsa-mt7530-introduce-mt7530_remove_common-helper.patch
View File

@ -1,7 +1,7 @@
From 69b838d2629e6b82bcd9e0ab3c1c03f46e5e01d3 Mon Sep 17 00:00:00 2001
From a7783b0b6f3b38abd34cecf515811691714dee57 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Mon, 3 Apr 2023 02:18:50 +0100
Subject: [PATCH 09/13] net: dsa: mt7530: introduce mt7530_remove_common helper
Subject: [PATCH 11/48] net: dsa: mt7530: introduce mt7530_remove_common helper
function
Move commonly used parts from mt7530_remove into new
@ -17,7 +17,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -3295,6 +3295,17 @@ mt7530_probe(struct mdio_device *mdiodev
@@ -3328,6 +3328,17 @@ mt7530_probe(struct mdio_device *mdiodev
}
static void
@ -35,7 +35,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
mt7530_remove(struct mdio_device *mdiodev)
{
struct mt7530_priv *priv = dev_get_drvdata(&mdiodev->dev);
@@ -3313,15 +3324,10 @@ mt7530_remove(struct mdio_device *mdiode
@@ -3346,15 +3357,10 @@ mt7530_remove(struct mdio_device *mdiode
dev_err(priv->dev, "Failed to disable io pwr: %d\n",
ret);

32
target/linux/generic/backport-6.1/790-v6.4-0010-net-dsa-mt7530-introduce-separate-MDIO-driver.patch → target/linux/generic/backport-6.1/790-12-v6.4-net-dsa-mt7530-introduce-separate-MDIO-driver.patch
View File

@ -1,7 +1,7 @@
From 8eceed6dbd74067dbf4d8e39f14734f4d2f35176 Mon Sep 17 00:00:00 2001
From 5313432ca1e1a0677ad7b4f17a7e0186473f47aa Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Mon, 3 Apr 2023 02:19:13 +0100
Subject: [PATCH 10/13] net: dsa: mt7530: introduce separate MDIO driver
Subject: [PATCH 12/48] net: dsa: mt7530: introduce separate MDIO driver
Split MT7530 switch driver into a common part and a part specific
for MDIO connected switches and multi-chip modules.
@ -15,12 +15,12 @@ Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
MAINTAINERS | 1 +
drivers/net/dsa/Kconfig | 16 +-
drivers/net/dsa/Kconfig | 18 ++-
drivers/net/dsa/Makefile | 1 +
drivers/net/dsa/mt7530-mdio.c | 271 ++++++++++++++++++++++++++++++++++
drivers/net/dsa/mt7530.c | 264 +--------------------------------
drivers/net/dsa/mt7530.h | 6 +
6 files changed, 301 insertions(+), 258 deletions(-)
6 files changed, 302 insertions(+), 259 deletions(-)
create mode 100644 drivers/net/dsa/mt7530-mdio.c
--- a/MAINTAINERS
@ -35,10 +35,13 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
--- a/drivers/net/dsa/Kconfig
+++ b/drivers/net/dsa/Kconfig
@@ -37,10 +37,22 @@ config NET_DSA_MT7530
tristate "MediaTek MT753x and MT7621 Ethernet switch support"
@@ -34,13 +34,25 @@ config NET_DSA_LANTIQ_GSWIP
the xrx200 / VR9 SoC.
config NET_DSA_MT7530
- tristate "MediaTek MT753x and MT7621 Ethernet switch support"
+ tristate "MediaTek MT7530 and MT7531 Ethernet switch support"
select NET_DSA_TAG_MTK
select MEDIATEK_GE_PHY
+ imply NET_DSA_MT7530_MDIO
+ help
+ This enables support for the MediaTek MT7530 and MT7531 Ethernet
@ -49,6 +52,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
+config NET_DSA_MT7530_MDIO
+ tristate "MediaTek MT7530 MDIO interface driver"
+ depends on NET_DSA_MT7530
select MEDIATEK_GE_PHY
select PCS_MTK_LYNXI
help
- This enables support for the MediaTek MT7530, MT7531, and MT7621
@ -416,7 +420,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
static u32
mt7530_mii_read(struct mt7530_priv *priv, u32 reg)
{
@@ -2975,72 +2926,6 @@ static const struct phylink_pcs_ops mt75
@@ -3008,72 +2959,6 @@ static const struct phylink_pcs_ops mt75
.pcs_an_restart = mt7530_pcs_an_restart,
};
@ -489,7 +493,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
static int
mt753x_setup(struct dsa_switch *ds)
{
@@ -3099,7 +2984,7 @@ static int mt753x_set_mac_eee(struct dsa
@@ -3132,7 +3017,7 @@ static int mt753x_set_mac_eee(struct dsa
return 0;
}
@ -498,7 +502,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
.get_tag_protocol = mtk_get_tag_protocol,
.setup = mt753x_setup,
.get_strings = mt7530_get_strings,
@@ -3133,8 +3018,9 @@ static const struct dsa_switch_ops mt753
@@ -3166,8 +3051,9 @@ static const struct dsa_switch_ops mt753
.get_mac_eee = mt753x_get_mac_eee,
.set_mac_eee = mt753x_set_mac_eee,
};
@ -509,7 +513,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
[ID_MT7621] = {
.id = ID_MT7621,
.pcs_ops = &mt7530_pcs_ops,
@@ -3167,16 +3053,9 @@ static const struct mt753x_info mt753x_t
@@ -3200,16 +3086,9 @@ static const struct mt753x_info mt753x_t
.mac_port_config = mt7531_mac_config,
},
};
@ -528,7 +532,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
mt7530_probe_common(struct mt7530_priv *priv)
{
struct device *dev = priv->dev;
@@ -3213,88 +3092,9 @@ mt7530_probe_common(struct mt7530_priv *
@@ -3246,88 +3125,9 @@ mt7530_probe_common(struct mt7530_priv *
return 0;
}
@ -619,7 +623,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
mt7530_remove_common(struct mt7530_priv *priv)
{
if (priv->irq)
@@ -3304,55 +3104,7 @@ mt7530_remove_common(struct mt7530_priv
@@ -3337,55 +3137,7 @@ mt7530_remove_common(struct mt7530_priv
mutex_destroy(&priv->reg_mutex);
}
@ -678,7 +682,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
MODULE_DESCRIPTION("Driver for Mediatek MT7530 Switch");
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -814,4 +814,10 @@ static inline void INIT_MT7530_DUMMY_POL
@@ -834,4 +834,10 @@ static inline void INIT_MT7530_DUMMY_POL
p->reg = reg;
}

4
target/linux/generic/backport-6.1/790-v6.4-0011-net-dsa-mt7530-skip-locking-if-MDIO-bus-isn-t-presen.patch → target/linux/generic/backport-6.1/790-13-v6.4-net-dsa-mt7530-skip-locking-if-MDIO-bus-isn-t-presen.patch
View File

@ -1,7 +1,7 @@
From a52cadbf76593f8fcb2f4f62cb006e3f2a22ad06 Mon Sep 17 00:00:00 2001
From 86e1168a214b7ab0883acf1e7a6885a7a949e3e7 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Mon, 3 Apr 2023 02:19:28 +0100
Subject: [PATCH 11/13] net: dsa: mt7530: skip locking if MDIO bus isn't
Subject: [PATCH 13/48] net: dsa: mt7530: skip locking if MDIO bus isn't
present
As MT7530 and MT7531 internally use 32-bit wide registers, each access

28
target/linux/generic/backport-6.1/790-v6.4-0012-net-dsa-mt7530-introduce-driver-for-MT7988-built-in-.patch → target/linux/generic/backport-6.1/790-14-v6.4-net-dsa-mt7530-introduce-driver-for-MT7988-built-in-.patch
View File

@ -1,7 +1,7 @@
From b361015763fedea439f13b336b15ef7bdf1f7d4f Mon Sep 17 00:00:00 2001
From a1b87b6322db9186c8689710fe3e98f59e540949 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Mon, 3 Apr 2023 02:19:40 +0100
Subject: [PATCH 12/13] net: dsa: mt7530: introduce driver for MT7988 built-in
Subject: [PATCH 14/48] net: dsa: mt7530: introduce driver for MT7988 built-in
switch
Add driver for the built-in Gigabit Ethernet switch which can be found
@ -42,9 +42,9 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
--- a/drivers/net/dsa/Kconfig
+++ b/drivers/net/dsa/Kconfig
@@ -38,6 +38,7 @@ config NET_DSA_MT7530
@@ -37,6 +37,7 @@ config NET_DSA_MT7530
tristate "MediaTek MT7530 and MT7531 Ethernet switch support"
select NET_DSA_TAG_MTK
select MEDIATEK_GE_PHY
imply NET_DSA_MT7530_MDIO
+ imply NET_DSA_MT7530_MMIO
help
@ -184,7 +184,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
+MODULE_LICENSE("GPL");
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2005,6 +2005,47 @@ static const struct irq_domain_ops mt753
@@ -2041,6 +2041,47 @@ static const struct irq_domain_ops mt753
};
static void
@ -232,7 +232,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
mt7530_setup_mdio_irq(struct mt7530_priv *priv)
{
struct dsa_switch *ds = priv->ds;
@@ -2038,8 +2079,15 @@ mt7530_setup_irq(struct mt7530_priv *pri
@@ -2074,8 +2115,15 @@ mt7530_setup_irq(struct mt7530_priv *pri
return priv->irq ? : -EINVAL;
}
@ -250,7 +250,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
if (!priv->irq_domain) {
dev_err(dev, "failed to create IRQ domain\n");
return -ENOMEM;
@@ -2538,6 +2586,25 @@ static void mt7531_mac_port_get_caps(str
@@ -2574,6 +2622,25 @@ static void mt7531_mac_port_get_caps(str
}
}
@ -276,7 +276,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
static int
mt753x_pad_setup(struct dsa_switch *ds, const struct phylink_link_state *state)
{
@@ -2614,6 +2681,17 @@ static bool mt753x_is_mac_port(u32 port)
@@ -2650,6 +2717,17 @@ static bool mt753x_is_mac_port(u32 port)
}
static int
@ -294,7 +294,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
mt7531_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
phy_interface_t interface)
{
@@ -2683,7 +2761,8 @@ mt753x_phylink_mac_config(struct dsa_swi
@@ -2719,7 +2797,8 @@ mt753x_phylink_mac_config(struct dsa_swi
switch (port) {
case 0 ... 4: /* Internal phy */
@ -304,7 +304,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
goto unsupported;
break;
case 5: /* 2nd cpu port with phy of port 0 or 4 / external phy */
@@ -2761,7 +2840,8 @@ static void mt753x_phylink_mac_link_up(s
@@ -2797,7 +2876,8 @@ static void mt753x_phylink_mac_link_up(s
/* MT753x MAC works in 1G full duplex mode for all up-clocked
* variants.
*/
@ -314,7 +314,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
(phy_interface_mode_is_8023z(interface))) {
speed = SPEED_1000;
duplex = DUPLEX_FULL;
@@ -2841,6 +2921,21 @@ mt7531_cpu_port_config(struct dsa_switch
@@ -2877,6 +2957,21 @@ mt7531_cpu_port_config(struct dsa_switch
return 0;
}
@ -336,7 +336,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
static void mt753x_phylink_get_caps(struct dsa_switch *ds, int port,
struct phylink_config *config)
{
@@ -2986,6 +3081,27 @@ static int mt753x_set_mac_eee(struct dsa
@@ -3019,6 +3114,27 @@ static int mt753x_set_mac_eee(struct dsa
return 0;
}
@ -364,7 +364,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
const struct dsa_switch_ops mt7530_switch_ops = {
.get_tag_protocol = mtk_get_tag_protocol,
.setup = mt753x_setup,
@@ -3054,6 +3170,17 @@ const struct mt753x_info mt753x_table[]
@@ -3087,6 +3203,17 @@ const struct mt753x_info mt753x_table[]
.mac_port_get_caps = mt7531_mac_port_get_caps,
.mac_port_config = mt7531_mac_config,
},
@ -407,7 +407,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
MT7531_MIRROR_MASK : MIRROR_MASK)
/* Registers for BPDU and PAE frame control*/
@@ -302,9 +303,8 @@ enum mt7530_vlan_port_acc_frm {
@@ -322,9 +323,8 @@ enum mt7530_vlan_port_acc_frm {
MT7531_FORCE_DPX | \
MT7531_FORCE_RX_FC | \
MT7531_FORCE_TX_FC)

12
target/linux/generic/backport-6.1/790-v6.4-0013-net-dsa-mt7530-fix-support-for-MT7531BE.patch → target/linux/generic/backport-6.1/790-15-v6.4-net-dsa-mt7530-fix-support-for-MT7531BE.patch
View File

@ -1,7 +1,7 @@
From eb1dd407b4be7ca38166a38c56c8edf52c6a399f Mon Sep 17 00:00:00 2001
From ed01748319b25456c5226ed0cb5e49e970da0e4f Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Sun, 16 Apr 2023 13:08:14 +0100
Subject: [PATCH 13/13] net: dsa: mt7530: fix support for MT7531BE
Subject: [PATCH 15/48] net: dsa: mt7530: fix support for MT7531BE
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
@ -73,7 +73,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
}
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -3048,6 +3048,12 @@ mt753x_setup(struct dsa_switch *ds)
@@ -3081,6 +3081,12 @@ mt753x_setup(struct dsa_switch *ds)
if (ret && priv->irq)
mt7530_free_irq_common(priv);
@ -88,7 +88,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -748,10 +748,10 @@ struct mt753x_info {
@@ -768,10 +768,10 @@ struct mt753x_info {
* registers
* @p6_interface Holding the current port 6 interface
* @p5_intf_sel: Holding the current port 5 interface select
@ -100,7 +100,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
*/
struct mt7530_priv {
struct device *dev;
@@ -770,7 +770,6 @@ struct mt7530_priv {
@@ -790,7 +790,6 @@ struct mt7530_priv {
unsigned int p5_intf_sel;
u8 mirror_rx;
u8 mirror_tx;
@ -108,7 +108,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
struct mt7530_port ports[MT7530_NUM_PORTS];
struct mt753x_pcs pcs[MT7530_NUM_PORTS];
/* protect among processes for registers access*/
@@ -778,6 +777,7 @@ struct mt7530_priv {
@@ -798,6 +797,7 @@ struct mt7530_priv {
int irq;
struct irq_domain *irq_domain;
u32 irq_enable;

79
target/linux/generic/backport-6.1/790-16-v6.4-net-dsa-mt7530-set-all-CPU-ports-in-MT7531_CPU_PMAP.patch Normal file
View File

@ -0,0 +1,79 @@
From 4b11e3eb0eb7245a0d22a5dc4161c54eea42910c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Sat, 17 Jun 2023 09:26:44 +0300
Subject: [PATCH 16/48] net: dsa: mt7530: set all CPU ports in MT7531_CPU_PMAP
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
MT7531_CPU_PMAP represents the destination port mask for trapped-to-CPU
frames (further restricted by PCR_MATRIX).
Currently the driver sets the first CPU port as the single port in this bit
mask, which works fine regardless of whether the device tree defines port
5, 6 or 5+6 as CPU ports. This is because the logic coincides with DSA's
logic of picking the first CPU port as the CPU port that all user ports are
affine to, by default.
An upcoming change would like to influence DSA's selection of the default
CPU port to no longer be the first one, and in that case, this logic needs
adaptation.
Since there is no observed leakage or duplication of frames if all CPU
ports are defined in this bit mask, simply include them all.
Suggested-by: Russell King (Oracle) <linux@armlinux.org.uk>
Suggested-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/dsa/mt7530.c | 15 +++++++--------
drivers/net/dsa/mt7530.h | 1 +
2 files changed, 8 insertions(+), 8 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -1069,6 +1069,13 @@ mt753x_cpu_port_enable(struct dsa_switch
if (priv->id == ID_MT7530 || priv->id == ID_MT7621)
mt7530_rmw(priv, MT7530_MFC, CPU_MASK, CPU_EN | CPU_PORT(port));
+ /* Add the CPU port to the CPU port bitmap for MT7531 and the switch on
+ * the MT7988 SoC. Trapped frames will be forwarded to the CPU port that
+ * is affine to the inbound user port.
+ */
+ if (priv->id == ID_MT7531 || priv->id == ID_MT7988)
+ mt7530_set(priv, MT7531_CFC, MT7531_CPU_PMAP(BIT(port)));
+
/* CPU port gets connected to all user ports of
* the switch.
*/
@@ -2411,16 +2418,8 @@ static int
mt7531_setup_common(struct dsa_switch *ds)
{
struct mt7530_priv *priv = ds->priv;
- struct dsa_port *cpu_dp;
int ret, i;
- /* BPDU to CPU port */
- dsa_switch_for_each_cpu_port(cpu_dp, ds) {
- mt7530_rmw(priv, MT7531_CFC, MT7531_CPU_PMAP_MASK,
- BIT(cpu_dp->index));
- break;
- }
-
mt753x_trap_frames(priv);
/* Enable and reset MIB counters */
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -54,6 +54,7 @@ enum mt753x_id {
#define MT7531_MIRROR_PORT_GET(x) (((x) >> 16) & MIRROR_MASK)
#define MT7531_MIRROR_PORT_SET(x) (((x) & MIRROR_MASK) << 16)
#define MT7531_CPU_PMAP_MASK GENMASK(7, 0)
+#define MT7531_CPU_PMAP(x) FIELD_PREP(MT7531_CPU_PMAP_MASK, x)
#define MT753X_MIRROR_REG(id) ((((id) == ID_MT7531) || ((id) == ID_MT7988)) ? \
MT7531_CFC : MT7530_MFC)

35
target/linux/generic/backport-6.1/790-17-v6.5-net-dsa-mt7530-update-PCS-driver-to-use-neg_mode.patch Normal file
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@ -0,0 +1,35 @@
From fb6858e2c3b931433ea4d25871c272ee4c01bd99 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Fri, 16 Jun 2023 13:07:29 +0100
Subject: [PATCH 17/48] net: dsa: mt7530: update PCS driver to use neg_mode
Update mt7530's embedded PCS driver to use neg_mode, even though it
makes no use of it or the "mode" argument. This makes the driver
consistent with converted drivers.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/E1qA8Ej-00EaGR-Fk@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/dsa/mt7530.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -3036,7 +3036,7 @@ static void mt7530_pcs_get_state(struct
state->pause |= MLO_PAUSE_TX;
}
-static int mt753x_pcs_config(struct phylink_pcs *pcs, unsigned int mode,
+static int mt753x_pcs_config(struct phylink_pcs *pcs, unsigned int neg_mode,
phy_interface_t interface,
const unsigned long *advertising,
bool permit_pause_to_mac)
@@ -3064,6 +3064,7 @@ mt753x_setup(struct dsa_switch *ds)
/* Initialise the PCS devices */
for (i = 0; i < priv->ds->num_ports; i++) {
priv->pcs[i].pcs.ops = priv->info->pcs_ops;
+ priv->pcs[i].pcs.neg_mode = true;
priv->pcs[i].priv = priv;
priv->pcs[i].port = i;
}

58
target/linux/generic/backport-6.1/790-18-v6.7-net-dsa-mt7530-Convert-to-platform-remove-callback-r.patch Normal file
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@ -0,0 +1,58 @@
From 03ede98ecc29b59fb364f735d6de0e6a4c1735fc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
Date: Mon, 18 Sep 2023 21:19:12 +0200
Subject: [PATCH 18/48] net: dsa: mt7530: Convert to platform remove callback
returning void
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Acked-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/dsa/mt7530-mmio.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
--- a/drivers/net/dsa/mt7530-mmio.c
+++ b/drivers/net/dsa/mt7530-mmio.c
@@ -62,15 +62,12 @@ mt7988_probe(struct platform_device *pde
return dsa_register_switch(priv->ds);
}
-static int
-mt7988_remove(struct platform_device *pdev)
+static void mt7988_remove(struct platform_device *pdev)
{
struct mt7530_priv *priv = platform_get_drvdata(pdev);
if (priv)
mt7530_remove_common(priv);
-
- return 0;
}
static void mt7988_shutdown(struct platform_device *pdev)
@@ -87,7 +84,7 @@ static void mt7988_shutdown(struct platf
static struct platform_driver mt7988_platform_driver = {
.probe = mt7988_probe,
- .remove = mt7988_remove,
+ .remove_new = mt7988_remove,
.shutdown = mt7988_shutdown,
.driver = {
.name = "mt7530-mmio",

51
target/linux/generic/backport-6.1/790-19-v6.7-net-dsa-mt753x-remove-mt753x_phylink_pcs_link_up.patch Normal file
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@ -0,0 +1,51 @@
From 1a1a723d47c046d6c251651c9ade589040dafacf Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Wed, 27 Sep 2023 13:13:56 +0100
Subject: [PATCH 19/48] net: dsa: mt753x: remove mt753x_phylink_pcs_link_up()
Remove the mt753x_phylink_pcs_link_up() function for two reasons:
1) priv->pcs[i].pcs.neg_mode is set true, meaning it doesn't take a
MLO_AN_FIXED anymore, but one of PHYLINK_PCS_NEG_*. However, this
is inconsequential due to...
2) priv->pcs[port].pcs.ops is always initialised to point at
mt7530_pcs_ops, which does not have a pcs_link_up() member.
So, let's remove mt753x_phylink_pcs_link_up() entirely.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/E1qlTQS-008BWe-Va@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/dsa/mt7530.c | 11 -----------
1 file changed, 11 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2851,15 +2851,6 @@ static void mt753x_phylink_mac_link_down
mt7530_clear(priv, MT7530_PMCR_P(port), PMCR_LINK_SETTINGS_MASK);
}
-static void mt753x_phylink_pcs_link_up(struct phylink_pcs *pcs,
- unsigned int mode,
- phy_interface_t interface,
- int speed, int duplex)
-{
- if (pcs->ops->pcs_link_up)
- pcs->ops->pcs_link_up(pcs, mode, interface, speed, duplex);
-}
-
static void mt753x_phylink_mac_link_up(struct dsa_switch *ds, int port,
unsigned int mode,
phy_interface_t interface,
@@ -2948,8 +2939,6 @@ mt7531_cpu_port_config(struct dsa_switch
return ret;
mt7530_write(priv, MT7530_PMCR_P(port),
PMCR_CPU_PORT_SETTING(priv->id));
- mt753x_phylink_pcs_link_up(&priv->pcs[port].pcs, MLO_AN_FIXED,
- interface, speed, DUPLEX_FULL);
mt753x_phylink_mac_link_up(ds, port, MLO_AN_FIXED, interface, NULL,
speed, DUPLEX_FULL, true, true);

40
target/linux/generic/backport-6.1/790-20-v6.7-net-dsa-mt7530-replace-deprecated-strncpy-with-ethto.patch Normal file
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@ -0,0 +1,40 @@
From 51e9c79a4d40fa3a64c0fbdab1ebbebf7cce2dba Mon Sep 17 00:00:00 2001
From: Justin Stitt <justinstitt@google.com>
Date: Mon, 9 Oct 2023 18:29:19 +0000
Subject: [PATCH 20/48] net: dsa: mt7530: replace deprecated strncpy with
ethtool_sprintf
`strncpy` is deprecated for use on NUL-terminated destination strings
[1] and as such we should prefer more robust and less ambiguous string
interfaces.
ethtool_sprintf() is designed specifically for get_strings() usage.
Let's replace strncpy in favor of this more robust and easier to
understand interface.
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Signed-off-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20231009-strncpy-drivers-net-dsa-mt7530-c-v1-1-ec6677a6436a@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/dsa/mt7530.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -829,8 +829,7 @@ mt7530_get_strings(struct dsa_switch *ds
return;
for (i = 0; i < ARRAY_SIZE(mt7530_mib); i++)
- strncpy(data + i * ETH_GSTRING_LEN, mt7530_mib[i].name,
- ETH_GSTRING_LEN);
+ ethtool_sprintf(&data, "%s", mt7530_mib[i].name);
}
static void

116
target/linux/generic/backport-6.1/790-21-v6.9-net-dsa-mt7530-support-OF-based-registration-of-swit.patch Normal file
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@ -0,0 +1,116 @@
From 38be6fdf7e93431e91aac3884837b22236325f68 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Mon, 22 Jan 2024 08:34:31 +0300
Subject: [PATCH 21/48] net: dsa: mt7530: support OF-based registration of
switch MDIO bus
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Currently the MDIO bus of the switches the MT7530 DSA subdriver controls
can only be registered as non-OF-based. Bring support for registering the
bus OF-based.
The subdrivers that control switches [with MDIO bus] probed on OF must
follow this logic to support all cases properly:
No switch MDIO bus defined: Populate ds->user_mii_bus, register the MDIO
bus, set the interrupts for PHYs if "interrupt-controller" is defined at
the switch node. This case should only be covered for the switches which
their dt-bindings documentation didn't document the MDIO bus from the
start. This is to keep supporting the device trees that do not describe the
MDIO bus on the device tree but the MDIO bus is being used nonetheless.
Switch MDIO bus defined: Don't populate ds->user_mii_bus, register the MDIO
bus, set the interrupts for PHYs if ["interrupt-controller" is defined at
the switch node and "interrupts" is defined at the PHY nodes under the
switch MDIO bus node].
Switch MDIO bus defined but explicitly disabled: If the device tree says
status = "disabled" for the MDIO bus, we shouldn't need an MDIO bus at all.
Instead, just exit as early as possible and do not call any MDIO API.
The use of ds->user_mii_bus is inappropriate when the MDIO bus of the
switch is described on the device tree [1], which is why we don't populate
ds->user_mii_bus in that case.
Link: https://lore.kernel.org/netdev/20231213120656.x46fyad6ls7sqyzv@skbuf/ [1]
Suggested-by: David Bauer <mail@david-bauer.net>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20240122053431.7751-1-arinc.unal@arinc9.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---
drivers/net/dsa/mt7530.c | 34 ++++++++++++++++++++++++++--------
1 file changed, 26 insertions(+), 8 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2175,24 +2175,40 @@ mt7530_free_irq_common(struct mt7530_pri
static void
mt7530_free_irq(struct mt7530_priv *priv)
{
- mt7530_free_mdio_irq(priv);
+ struct device_node *mnp, *np = priv->dev->of_node;
+
+ mnp = of_get_child_by_name(np, "mdio");
+ if (!mnp)
+ mt7530_free_mdio_irq(priv);
+ of_node_put(mnp);
+
mt7530_free_irq_common(priv);
}
static int
mt7530_setup_mdio(struct mt7530_priv *priv)
{
+ struct device_node *mnp, *np = priv->dev->of_node;
struct dsa_switch *ds = priv->ds;
struct device *dev = priv->dev;
struct mii_bus *bus;
static int idx;
- int ret;
+ int ret = 0;
+
+ mnp = of_get_child_by_name(np, "mdio");
+
+ if (mnp && !of_device_is_available(mnp))
+ goto out;
bus = devm_mdiobus_alloc(dev);
- if (!bus)
- return -ENOMEM;
+ if (!bus) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ if (!mnp)
+ ds->slave_mii_bus = bus;
- ds->slave_mii_bus = bus;
bus->priv = priv;
bus->name = KBUILD_MODNAME "-mii";
snprintf(bus->id, MII_BUS_ID_SIZE, KBUILD_MODNAME "-%d", idx++);
@@ -2201,16 +2217,18 @@ mt7530_setup_mdio(struct mt7530_priv *pr
bus->parent = dev;
bus->phy_mask = ~ds->phys_mii_mask;
- if (priv->irq)
+ if (priv->irq && !mnp)
mt7530_setup_mdio_irq(priv);
- ret = devm_mdiobus_register(dev, bus);
+ ret = devm_of_mdiobus_register(dev, bus, mnp);
if (ret) {
dev_err(dev, "failed to register MDIO bus: %d\n", ret);
- if (priv->irq)
+ if (priv->irq && !mnp)
mt7530_free_mdio_irq(priv);
}
+out:
+ of_node_put(mnp);
return ret;
}

34
target/linux/generic/backport-6.1/790-22-v6.8-net-dsa-mt7530-fix-10M-100M-speed-on-MT7988-switch.patch Normal file
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@ -0,0 +1,34 @@
From 022a254fafce88367914dfc8168fe687fc528cdb Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Wed, 24 Jan 2024 05:17:25 +0000
Subject: [PATCH 22/48] net: dsa: mt7530: fix 10M/100M speed on MT7988 switch
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Setup PMCR port register for actual speed and duplex on internally
connected PHYs of the MT7988 built-in switch. This fixes links with
speeds other than 1000M.
Fixes: 110c18bfed41 ("net: dsa: mt7530: introduce driver for MT7988 built-in switch")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Acked-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Link: https://lore.kernel.org/r/a5b04dfa8256d8302f402545a51ac4c626fdba25.1706071272.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/dsa/mt7530.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2883,8 +2883,7 @@ static void mt753x_phylink_mac_link_up(s
/* MT753x MAC works in 1G full duplex mode for all up-clocked
* variants.
*/
- if (interface == PHY_INTERFACE_MODE_INTERNAL ||
- interface == PHY_INTERFACE_MODE_TRGMII ||
+ if (interface == PHY_INTERFACE_MODE_TRGMII ||
(phy_interface_mode_is_8023z(interface))) {
speed = SPEED_1000;
duplex = DUPLEX_FULL;

125
target/linux/generic/backport-6.1/790-23-v6.9-net-dsa-mt7530-always-trap-frames-to-active-CPU-port.patch Normal file
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@ -0,0 +1,125 @@
From a385398f77fad9eabe7cdc253e1a356484acc316 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Mon, 22 Jan 2024 08:35:52 +0300
Subject: [PATCH 23/48] net: dsa: mt7530: always trap frames to active CPU port
on MT7530
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
On the MT7530 switch, the CPU_PORT field indicates which CPU port to trap
frames to, regardless of the affinity of the inbound user port.
When multiple CPU ports are in use, if the DSA conduit interface is down,
trapped frames won't be passed to the conduit interface.
To make trapping frames work including this case, implement
ds->ops->conduit_state_change() on this subdriver and set the CPU_PORT
field to the numerically smallest CPU port whose conduit interface is up.
Introduce the active_cpu_ports field to store the information of the active
CPU ports. Correct the macros, CPU_PORT is bits 4 through 6 of the
register.
Add a comment to explain frame trapping for this switch.
Currently, the driver doesn't support the use of multiple CPU ports so this
is not necessarily a bug fix.
Suggested-by: Vladimir Oltean <olteanv@gmail.com>
Suggested-by: Russell King (Oracle) <linux@armlinux.org.uk>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20240122-for-netnext-mt7530-improvements-1-v3-1-042401f2b279@arinc9.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/dsa/mt7530.c | 35 +++++++++++++++++++++++++++++++----
drivers/net/dsa/mt7530.h | 6 ++++--
2 files changed, 35 insertions(+), 6 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -1064,10 +1064,6 @@ mt753x_cpu_port_enable(struct dsa_switch
mt7530_set(priv, MT7530_MFC, BC_FFP(BIT(port)) | UNM_FFP(BIT(port)) |
UNU_FFP(BIT(port)));
- /* Set CPU port number */
- if (priv->id == ID_MT7530 || priv->id == ID_MT7621)
- mt7530_rmw(priv, MT7530_MFC, CPU_MASK, CPU_EN | CPU_PORT(port));
-
/* Add the CPU port to the CPU port bitmap for MT7531 and the switch on
* the MT7988 SoC. Trapped frames will be forwarded to the CPU port that
* is affine to the inbound user port.
@@ -3125,6 +3121,36 @@ static int mt753x_set_mac_eee(struct dsa
return 0;
}
+static void
+mt753x_conduit_state_change(struct dsa_switch *ds,
+ const struct net_device *conduit,
+ bool operational)
+{
+ struct dsa_port *cpu_dp = conduit->dsa_ptr;
+ struct mt7530_priv *priv = ds->priv;
+ int val = 0;
+ u8 mask;
+
+ /* Set the CPU port to trap frames to for MT7530. Trapped frames will be
+ * forwarded to the numerically smallest CPU port whose conduit
+ * interface is up.
+ */
+ if (priv->id != ID_MT7530 && priv->id != ID_MT7621)
+ return;
+
+ mask = BIT(cpu_dp->index);
+
+ if (operational)
+ priv->active_cpu_ports |= mask;
+ else
+ priv->active_cpu_ports &= ~mask;
+
+ if (priv->active_cpu_ports)
+ val = CPU_EN | CPU_PORT(__ffs(priv->active_cpu_ports));
+
+ mt7530_rmw(priv, MT7530_MFC, CPU_EN | CPU_PORT_MASK, val);
+}
+
static int mt7988_pad_setup(struct dsa_switch *ds, phy_interface_t interface)
{
return 0;
@@ -3179,6 +3205,7 @@ const struct dsa_switch_ops mt7530_switc
.phylink_mac_link_up = mt753x_phylink_mac_link_up,
.get_mac_eee = mt753x_get_mac_eee,
.set_mac_eee = mt753x_set_mac_eee,
+ .master_state_change = mt753x_conduit_state_change,
};
EXPORT_SYMBOL_GPL(mt7530_switch_ops);
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -41,8 +41,8 @@ enum mt753x_id {
#define UNU_FFP(x) (((x) & 0xff) << 8)
#define UNU_FFP_MASK UNU_FFP(~0)
#define CPU_EN BIT(7)
-#define CPU_PORT(x) ((x) << 4)
-#define CPU_MASK (0xf << 4)
+#define CPU_PORT_MASK GENMASK(6, 4)
+#define CPU_PORT(x) FIELD_PREP(CPU_PORT_MASK, x)
#define MIRROR_EN BIT(3)
#define MIRROR_PORT(x) ((x) & 0x7)
#define MIRROR_MASK 0x7
@@ -773,6 +773,7 @@ struct mt753x_info {
* @irq_domain: IRQ domain of the switch irq_chip
* @irq_enable: IRQ enable bits, synced to SYS_INT_EN
* @create_sgmii: Pointer to function creating SGMII PCS instance(s)
+ * @active_cpu_ports: Holding the active CPU ports
*/
struct mt7530_priv {
struct device *dev;
@@ -799,6 +800,7 @@ struct mt7530_priv {
struct irq_domain *irq_domain;
u32 irq_enable;
int (*create_sgmii)(struct mt7530_priv *priv, bool dual_sgmii);
+ u8 active_cpu_ports;
};
struct mt7530_hw_vlan_entry {

45
target/linux/generic/backport-6.1/790-24-v6.9-net-dsa-mt7530-use-p5_interface_select-as-data-type-.patch Normal file
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@ -0,0 +1,45 @@
From e3c8f69af69e6c4022094309445c009faf5e8cef Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Mon, 22 Jan 2024 08:35:53 +0300
Subject: [PATCH 24/48] net: dsa: mt7530: use p5_interface_select as data type
for p5_intf_sel
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Use the p5_interface_select enumeration as the data type for the
p5_intf_sel field. This ensures p5_intf_sel can only take the values
defined in the p5_interface_select enumeration.
Remove the explicit assignment of 0 to P5_DISABLED as the first enum item
is automatically assigned 0.
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Acked-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20240122-for-netnext-mt7530-improvements-1-v3-2-042401f2b279@arinc9.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/dsa/mt7530.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -703,7 +703,7 @@ struct mt7530_port {
/* Port 5 interface select definitions */
enum p5_interface_select {
- P5_DISABLED = 0,
+ P5_DISABLED,
P5_INTF_SEL_PHY_P0,
P5_INTF_SEL_PHY_P4,
P5_INTF_SEL_GMAC5,
@@ -789,7 +789,7 @@ struct mt7530_priv {
bool mcm;
phy_interface_t p6_interface;
phy_interface_t p5_interface;
- unsigned int p5_intf_sel;
+ enum p5_interface_select p5_intf_sel;
u8 mirror_rx;
u8 mirror_tx;
struct mt7530_port ports[MT7530_NUM_PORTS];

227
target/linux/generic/backport-6.1/790-25-v6.9-net-dsa-mt7530-store-port-5-SGMII-capability-of-MT75.patch Normal file
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@ -0,0 +1,227 @@
From b0d590a5cdd95ed863717b279751d6166083889f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Mon, 22 Jan 2024 08:35:54 +0300
Subject: [PATCH 25/48] net: dsa: mt7530: store port 5 SGMII capability of
MT7531
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Introduce the p5_sgmii field to store the information for whether port 5
has got SGMII or not. Instead of reading the MT7531_TOP_SIG_SR register
multiple times, the register will be read once and the value will be
stored on the p5_sgmii field. This saves unnecessary reads of the
register.
Move the comment about MT7531AE and MT7531BE to mt7531_setup(), where the
switch is identified.
Get rid of mt7531_dual_sgmii_supported() now that priv->p5_sgmii stores the
information. Address the code where mt7531_dual_sgmii_supported() is used.
Get rid of mt7531_is_rgmii_port() which just prints the opposite of
priv->p5_sgmii.
Instead of calling mt7531_pll_setup() then returning, do not call it if
port 5 is SGMII.
Remove P5_INTF_SEL_GMAC5_SGMII. The p5_interface_select enum is supposed to
represent the mode that port 5 is being used in, not the hardware
information of port 5. Set p5_intf_sel to P5_INTF_SEL_GMAC5 instead, if
port 5 is not dsa_is_unused_port().
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Acked-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20240122-for-netnext-mt7530-improvements-1-v3-3-042401f2b279@arinc9.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/dsa/mt7530-mdio.c | 7 ++---
drivers/net/dsa/mt7530.c | 48 ++++++++++++-----------------------
drivers/net/dsa/mt7530.h | 6 +++--
3 files changed, 22 insertions(+), 39 deletions(-)
--- a/drivers/net/dsa/mt7530-mdio.c
+++ b/drivers/net/dsa/mt7530-mdio.c
@@ -81,17 +81,14 @@ static const struct regmap_bus mt7530_re
};
static int
-mt7531_create_sgmii(struct mt7530_priv *priv, bool dual_sgmii)
+mt7531_create_sgmii(struct mt7530_priv *priv)
{
struct regmap_config *mt7531_pcs_config[2] = {};
struct phylink_pcs *pcs;
struct regmap *regmap;
int i, ret = 0;
- /* MT7531AE has two SGMII units for port 5 and port 6
- * MT7531BE has only one SGMII unit for port 6
- */
- for (i = dual_sgmii ? 0 : 1; i < 2; i++) {
+ for (i = priv->p5_sgmii ? 0 : 1; i < 2; i++) {
mt7531_pcs_config[i] = devm_kzalloc(priv->dev,
sizeof(struct regmap_config),
GFP_KERNEL);
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -473,15 +473,6 @@ mt7530_pad_clk_setup(struct dsa_switch *
return 0;
}
-static bool mt7531_dual_sgmii_supported(struct mt7530_priv *priv)
-{
- u32 val;
-
- val = mt7530_read(priv, MT7531_TOP_SIG_SR);
-
- return (val & PAD_DUAL_SGMII_EN) != 0;
-}
-
static int
mt7531_pad_setup(struct dsa_switch *ds, phy_interface_t interface)
{
@@ -496,9 +487,6 @@ mt7531_pll_setup(struct mt7530_priv *pri
u32 xtal;
u32 val;
- if (mt7531_dual_sgmii_supported(priv))
- return;
-
val = mt7530_read(priv, MT7531_CREV);
top_sig = mt7530_read(priv, MT7531_TOP_SIG_SR);
hwstrap = mt7530_read(priv, MT7531_HWTRAP);
@@ -913,8 +901,6 @@ static const char *p5_intf_modes(unsigne
return "PHY P4";
case P5_INTF_SEL_GMAC5:
return "GMAC5";
- case P5_INTF_SEL_GMAC5_SGMII:
- return "GMAC5_SGMII";
default:
return "unknown";
}
@@ -2515,6 +2501,12 @@ mt7531_setup(struct dsa_switch *ds)
return -ENODEV;
}
+ /* MT7531AE has got two SGMII units. One for port 5, one for port 6.
+ * MT7531BE has got only one SGMII unit which is for port 6.
+ */
+ val = mt7530_read(priv, MT7531_TOP_SIG_SR);
+ priv->p5_sgmii = !!(val & PAD_DUAL_SGMII_EN);
+
/* all MACs must be forced link-down before sw reset */
for (i = 0; i < MT7530_NUM_PORTS; i++)
mt7530_write(priv, MT7530_PMCR_P(i), MT7531_FORCE_LNK);
@@ -2524,21 +2516,18 @@ mt7531_setup(struct dsa_switch *ds)
SYS_CTRL_PHY_RST | SYS_CTRL_SW_RST |
SYS_CTRL_REG_RST);
- mt7531_pll_setup(priv);
-
- if (mt7531_dual_sgmii_supported(priv)) {
- priv->p5_intf_sel = P5_INTF_SEL_GMAC5_SGMII;
-
+ if (!priv->p5_sgmii) {
+ mt7531_pll_setup(priv);
+ } else {
/* Let ds->slave_mii_bus be able to access external phy. */
mt7530_rmw(priv, MT7531_GPIO_MODE1, MT7531_GPIO11_RG_RXD2_MASK,
MT7531_EXT_P_MDC_11);
mt7530_rmw(priv, MT7531_GPIO_MODE1, MT7531_GPIO12_RG_RXD3_MASK,
MT7531_EXT_P_MDIO_12);
- } else {
- priv->p5_intf_sel = P5_INTF_SEL_GMAC5;
}
- dev_dbg(ds->dev, "P5 support %s interface\n",
- p5_intf_modes(priv->p5_intf_sel));
+
+ if (!dsa_is_unused_port(ds, 5))
+ priv->p5_intf_sel = P5_INTF_SEL_GMAC5;
mt7530_rmw(priv, MT7531_GPIO_MODE0, MT7531_GPIO0_MASK,
MT7531_GPIO0_INTERRUPT);
@@ -2598,11 +2587,6 @@ static void mt7530_mac_port_get_caps(str
}
}
-static bool mt7531_is_rgmii_port(struct mt7530_priv *priv, u32 port)
-{
- return (port == 5) && (priv->p5_intf_sel != P5_INTF_SEL_GMAC5_SGMII);
-}
-
static void mt7531_mac_port_get_caps(struct dsa_switch *ds, int port,
struct phylink_config *config)
{
@@ -2615,7 +2599,7 @@ static void mt7531_mac_port_get_caps(str
break;
case 5: /* 2nd cpu port supports either rgmii or sgmii/8023z */
- if (mt7531_is_rgmii_port(priv, port)) {
+ if (!priv->p5_sgmii) {
phy_interface_set_rgmii(config->supported_interfaces);
break;
}
@@ -2682,7 +2666,7 @@ static int mt7531_rgmii_setup(struct mt7
{
u32 val;
- if (!mt7531_is_rgmii_port(priv, port)) {
+ if (priv->p5_sgmii) {
dev_err(priv->dev, "RGMII mode is not available for port %d\n",
port);
return -EINVAL;
@@ -2925,7 +2909,7 @@ mt7531_cpu_port_config(struct dsa_switch
switch (port) {
case 5:
- if (mt7531_is_rgmii_port(priv, port))
+ if (!priv->p5_sgmii)
interface = PHY_INTERFACE_MODE_RGMII;
else
interface = PHY_INTERFACE_MODE_2500BASEX;
@@ -3083,7 +3067,7 @@ mt753x_setup(struct dsa_switch *ds)
mt7530_free_irq_common(priv);
if (priv->create_sgmii) {
- ret = priv->create_sgmii(priv, mt7531_dual_sgmii_supported(priv));
+ ret = priv->create_sgmii(priv);
if (ret && priv->irq)
mt7530_free_irq(priv);
}
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -707,7 +707,6 @@ enum p5_interface_select {
P5_INTF_SEL_PHY_P0,
P5_INTF_SEL_PHY_P4,
P5_INTF_SEL_GMAC5,
- P5_INTF_SEL_GMAC5_SGMII,
};
struct mt7530_priv;
@@ -769,6 +768,8 @@ struct mt753x_info {
* registers
* @p6_interface Holding the current port 6 interface
* @p5_intf_sel: Holding the current port 5 interface select
+ * @p5_sgmii: Flag for distinguishing if port 5 of the MT7531 switch
+ * has got SGMII
* @irq: IRQ number of the switch
* @irq_domain: IRQ domain of the switch irq_chip
* @irq_enable: IRQ enable bits, synced to SYS_INT_EN
@@ -790,6 +791,7 @@ struct mt7530_priv {
phy_interface_t p6_interface;
phy_interface_t p5_interface;
enum p5_interface_select p5_intf_sel;
+ bool p5_sgmii;
u8 mirror_rx;
u8 mirror_tx;
struct mt7530_port ports[MT7530_NUM_PORTS];
@@ -799,7 +801,7 @@ struct mt7530_priv {
int irq;
struct irq_domain *irq_domain;
u32 irq_enable;
- int (*create_sgmii)(struct mt7530_priv *priv, bool dual_sgmii);
+ int (*create_sgmii)(struct mt7530_priv *priv);
u8 active_cpu_ports;
};

133
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@ -0,0 +1,133 @@
From 0dcde4c1e7c47822a6b00d6f96b7f19e51536026 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Mon, 22 Jan 2024 08:35:55 +0300
Subject: [PATCH 26/48] net: dsa: mt7530: improve comments regarding switch
ports
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
There's no logic to numerically order the CPU ports. Just state the port
number instead.
Remove the irrelevant PHY muxing information from
mt7530_mac_port_get_caps(). Explain the supported MII modes instead.
Remove the out of place PHY muxing information from
mt753x_phylink_mac_config(). The function is for MT7530, MT7531, and the
switch on the MT7988 SoC but there's no PHY muxing on MT7531 or the switch
on the MT7988 SoC.
These comments were gradually introduced with the commits below.
commit ca366d6c889b ("net: dsa: mt7530: Convert to PHYLINK API")
commit 38f790a80560 ("net: dsa: mt7530: Add support for port 5")
commit 88bdef8be9f6 ("net: dsa: mt7530: Extend device data ready for adding
a new hardware")
commit c288575f7810 ("net: dsa: mt7530: Add the support of MT7531 switch")
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Acked-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20240122-for-netnext-mt7530-improvements-1-v3-4-042401f2b279@arinc9.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/dsa/mt7530.c | 30 ++++++++++++++++++++----------
1 file changed, 20 insertions(+), 10 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2565,12 +2565,14 @@ static void mt7530_mac_port_get_caps(str
struct phylink_config *config)
{
switch (port) {
- case 0 ... 4: /* Internal phy */
+ /* Ports which are connected to switch PHYs. There is no MII pinout. */
+ case 0 ... 4:
__set_bit(PHY_INTERFACE_MODE_GMII,
config->supported_interfaces);
break;
- case 5: /* 2nd cpu port with phy of port 0 or 4 / external phy */
+ /* Port 5 supports rgmii with delays, mii, and gmii. */
+ case 5:
phy_interface_set_rgmii(config->supported_interfaces);
__set_bit(PHY_INTERFACE_MODE_MII,
config->supported_interfaces);
@@ -2578,7 +2580,8 @@ static void mt7530_mac_port_get_caps(str
config->supported_interfaces);
break;
- case 6: /* 1st cpu port */
+ /* Port 6 supports rgmii and trgmii. */
+ case 6:
__set_bit(PHY_INTERFACE_MODE_RGMII,
config->supported_interfaces);
__set_bit(PHY_INTERFACE_MODE_TRGMII,
@@ -2593,19 +2596,24 @@ static void mt7531_mac_port_get_caps(str
struct mt7530_priv *priv = ds->priv;
switch (port) {
- case 0 ... 4: /* Internal phy */
+ /* Ports which are connected to switch PHYs. There is no MII pinout. */
+ case 0 ... 4:
__set_bit(PHY_INTERFACE_MODE_GMII,
config->supported_interfaces);
break;
- case 5: /* 2nd cpu port supports either rgmii or sgmii/8023z */
+ /* Port 5 supports rgmii with delays on MT7531BE, sgmii/802.3z on
+ * MT7531AE.
+ */
+ case 5:
if (!priv->p5_sgmii) {
phy_interface_set_rgmii(config->supported_interfaces);
break;
}
fallthrough;
- case 6: /* 1st cpu port supports sgmii/8023z only */
+ /* Port 6 supports sgmii/802.3z. */
+ case 6:
__set_bit(PHY_INTERFACE_MODE_SGMII,
config->supported_interfaces);
__set_bit(PHY_INTERFACE_MODE_1000BASEX,
@@ -2624,11 +2632,13 @@ static void mt7988_mac_port_get_caps(str
phy_interface_zero(config->supported_interfaces);
switch (port) {
- case 0 ... 4: /* Internal phy */
+ /* Ports which are connected to switch PHYs. There is no MII pinout. */
+ case 0 ... 4:
__set_bit(PHY_INTERFACE_MODE_INTERNAL,
config->supported_interfaces);
break;
+ /* Port 6 is connected to SoC's XGMII MAC. There is no MII pinout. */
case 6:
__set_bit(PHY_INTERFACE_MODE_INTERNAL,
config->supported_interfaces);
@@ -2792,12 +2802,12 @@ mt753x_phylink_mac_config(struct dsa_swi
u32 mcr_cur, mcr_new;
switch (port) {
- case 0 ... 4: /* Internal phy */
+ case 0 ... 4:
if (state->interface != PHY_INTERFACE_MODE_GMII &&
state->interface != PHY_INTERFACE_MODE_INTERNAL)
goto unsupported;
break;
- case 5: /* 2nd cpu port with phy of port 0 or 4 / external phy */
+ case 5:
if (priv->p5_interface == state->interface)
break;
@@ -2807,7 +2817,7 @@ mt753x_phylink_mac_config(struct dsa_swi
if (priv->p5_intf_sel != P5_DISABLED)
priv->p5_interface = state->interface;
break;
- case 6: /* 1st cpu port */
+ case 6:
if (priv->p6_interface == state->interface)
break;

95
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@ -0,0 +1,95 @@
From 0f03d9bfa1da1d26cb950e4b35b1ff7b9be1828f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Mon, 22 Jan 2024 08:35:56 +0300
Subject: [PATCH 27/48] net: dsa: mt7530: improve code path for setting up port
5
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
There're two code paths for setting up port 5:
mt7530_setup()
-> mt7530_setup_port5()
mt753x_phylink_mac_config()
-> mt753x_mac_config()
-> mt7530_mac_config()
-> mt7530_setup_port5()
Currently mt7530_setup_port5() from mt7530_setup() always runs. If port 5
is used as a CPU, DSA, or user port, mt7530_setup_port5() from
mt753x_phylink_mac_config() won't run. That is because priv->p5_interface
set on mt7530_setup_port5() will match state->interface on
mt753x_phylink_mac_config() which will stop running mt7530_setup_port5()
again.
Therefore, mt7530_setup_port5() will never run from
mt753x_phylink_mac_config().
Address this by not running mt7530_setup_port5() from mt7530_setup() if
port 5 is used as a CPU, DSA, or user port. This driver isn't in the
dsa_switches_apply_workarounds[] array so phylink will always be present.
To keep the cases where port 5 isn't controlled by phylink working as
before, preserve the mt7530_setup_port5() call from mt7530_setup().
Do not set priv->p5_intf_sel to P5_DISABLED. It is already set to that when
"priv" is allocated.
Move setting the interface to a more specific location. It's supposed to be
overwritten if PHY muxing is detected.
Improve the comment which explains the process.
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20240122-for-netnext-mt7530-improvements-1-v3-5-042401f2b279@arinc9.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/dsa/mt7530.c | 17 ++++++++---------
1 file changed, 8 insertions(+), 9 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2353,16 +2353,15 @@ mt7530_setup(struct dsa_switch *ds)
return ret;
/* Setup port 5 */
- priv->p5_intf_sel = P5_DISABLED;
- interface = PHY_INTERFACE_MODE_NA;
-
if (!dsa_is_unused_port(ds, 5)) {
priv->p5_intf_sel = P5_INTF_SEL_GMAC5;
- ret = of_get_phy_mode(dsa_to_port(ds, 5)->dn, &interface);
- if (ret && ret != -ENODEV)
- return ret;
} else {
- /* Scan the ethernet nodes. look for GMAC1, lookup used phy */
+ /* Scan the ethernet nodes. Look for GMAC1, lookup the used PHY.
+ * Set priv->p5_intf_sel to the appropriate value if PHY muxing
+ * is detected.
+ */
+ interface = PHY_INTERFACE_MODE_NA;
+
for_each_child_of_node(dn, mac_np) {
if (!of_device_is_compatible(mac_np,
"mediatek,eth-mac"))
@@ -2393,6 +2392,8 @@ mt7530_setup(struct dsa_switch *ds)
of_node_put(phy_node);
break;
}
+
+ mt7530_setup_port5(ds, interface);
}
#ifdef CONFIG_GPIOLIB
@@ -2403,8 +2404,6 @@ mt7530_setup(struct dsa_switch *ds)
}
#endif /* CONFIG_GPIOLIB */
- mt7530_setup_port5(ds, interface);
-
/* Flush the FDB table */
ret = mt7530_fdb_cmd(priv, MT7530_FDB_FLUSH, NULL);
if (ret < 0)

42
target/linux/generic/backport-6.1/790-28-v6.9-net-dsa-mt7530-do-not-set-priv-p5_interface-on-mt753.patch Normal file
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@ -0,0 +1,42 @@
From 120581c81ad19704a9325505c83a82b7e760e96e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Mon, 22 Jan 2024 08:35:57 +0300
Subject: [PATCH 28/48] net: dsa: mt7530: do not set priv->p5_interface on
mt7530_setup_port5()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Running mt7530_setup_port5() from mt7530_setup() used to handle all cases
of configuring port 5, including phylink.
Setting priv->p5_interface under mt7530_setup_port5() makes sure that
mt7530_setup_port5() from mt753x_phylink_mac_config() won't run.
The commit ("net: dsa: mt7530: improve code path for setting up port 5")
makes so that mt7530_setup_port5() from mt7530_setup() runs only on
non-phylink cases.
Get rid of unnecessarily setting priv->p5_interface under
mt7530_setup_port5() as port 5 phylink configuration will be done by
running mt7530_setup_port5() from mt753x_phylink_mac_config() now.
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20240122-for-netnext-mt7530-improvements-1-v3-6-042401f2b279@arinc9.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/dsa/mt7530.c | 2 --
1 file changed, 2 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -971,8 +971,6 @@ static void mt7530_setup_port5(struct ds
dev_dbg(ds->dev, "Setup P5, HWTRAP=0x%x, intf_sel=%s, phy-mode=%s\n",
val, p5_intf_modes(priv->p5_intf_sel), phy_modes(interface));
- priv->p5_interface = interface;
-
unlock_exit:
mutex_unlock(&priv->reg_mutex);
}

62
target/linux/generic/backport-6.1/790-29-v6.9-net-dsa-mt7530-do-not-run-mt7530_setup_port5-if-port.patch Normal file
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@ -0,0 +1,62 @@
From 3b423061eb3a62e59b57939ae1e1234756a0f6a1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Mon, 22 Jan 2024 08:35:58 +0300
Subject: [PATCH 29/48] net: dsa: mt7530: do not run mt7530_setup_port5() if
port 5 is disabled
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
There's no need to run all the code on mt7530_setup_port5() if port 5 is
disabled. The only case for calling mt7530_setup_port5() from
mt7530_setup() is when PHY muxing is enabled. That is because port 5 is not
defined as a port on the devicetree, therefore, it cannot be controlled by
phylink.
Because of this, run mt7530_setup_port5() if priv->p5_intf_sel is
P5_INTF_SEL_PHY_P0 or P5_INTF_SEL_PHY_P4. Remove the P5_DISABLED case from
mt7530_setup_port5().
Stop initialising the interface variable as the remaining cases will always
call mt7530_setup_port5() with it initialised.
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20240122-for-netnext-mt7530-improvements-1-v3-7-042401f2b279@arinc9.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/dsa/mt7530.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -935,9 +935,6 @@ static void mt7530_setup_port5(struct ds
/* MT7530_P5_MODE_GMAC: P5 -> External phy or 2nd GMAC */
val &= ~MHWTRAP_P5_DIS;
break;
- case P5_DISABLED:
- interface = PHY_INTERFACE_MODE_NA;
- break;
default:
dev_err(ds->dev, "Unsupported p5_intf_sel %d\n",
priv->p5_intf_sel);
@@ -2358,8 +2355,6 @@ mt7530_setup(struct dsa_switch *ds)
* Set priv->p5_intf_sel to the appropriate value if PHY muxing
* is detected.
*/
- interface = PHY_INTERFACE_MODE_NA;
-
for_each_child_of_node(dn, mac_np) {
if (!of_device_is_compatible(mac_np,
"mediatek,eth-mac"))
@@ -2391,7 +2386,9 @@ mt7530_setup(struct dsa_switch *ds)
break;
}
- mt7530_setup_port5(ds, interface);
+ if (priv->p5_intf_sel == P5_INTF_SEL_PHY_P0 ||
+ priv->p5_intf_sel == P5_INTF_SEL_PHY_P4)
+ mt7530_setup_port5(ds, interface);
}
#ifdef CONFIG_GPIOLIB

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From 959f4ac4940bebb84bdd25ac61470b3965e1e475 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Tue, 6 Feb 2024 01:08:02 +0300
Subject: [PATCH 30/48] net: dsa: mt7530: empty default case on
mt7530_setup_port5()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
There're two code paths for setting up port 5:
mt7530_setup()
-> mt7530_setup_port5()
mt753x_phylink_mac_config()
-> mt753x_mac_config()
-> mt7530_mac_config()
-> mt7530_setup_port5()
On the first code path, priv->p5_intf_sel is either set to
P5_INTF_SEL_PHY_P0 or P5_INTF_SEL_PHY_P4 when mt7530_setup_port5() is run.
On the second code path, priv->p5_intf_sel is set to P5_INTF_SEL_GMAC5 when
mt7530_setup_port5() is run.
Empty the default case which will never run but is needed nonetheless to
handle all the remaining enumeration values.
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Link: https://lore.kernel.org/r/20240206-for-netnext-mt7530-improvements-2-v5-1-d7d92a185cb1@arinc9.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/dsa/mt7530.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -936,9 +936,7 @@ static void mt7530_setup_port5(struct ds
val &= ~MHWTRAP_P5_DIS;
break;
default:
- dev_err(ds->dev, "Unsupported p5_intf_sel %d\n",
- priv->p5_intf_sel);
- goto unlock_exit;
+ break;
}
/* Setup RGMII settings */
@@ -968,7 +966,6 @@ static void mt7530_setup_port5(struct ds
dev_dbg(ds->dev, "Setup P5, HWTRAP=0x%x, intf_sel=%s, phy-mode=%s\n",
val, p5_intf_modes(priv->p5_intf_sel), phy_modes(interface));
-unlock_exit:
mutex_unlock(&priv->reg_mutex);
}

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From 9ec0a800c8e0850e1358b7402d6af557af81cb38 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Tue, 6 Feb 2024 01:08:03 +0300
Subject: [PATCH 31/48] net: dsa: mt7530: move XTAL check to mt7530_setup()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The crystal frequency concerns the switch core. The frequency should be
checked when the switch is being set up so the driver can reject the
unsupported hardware earlier and without requiring port 6 to be used.
Move it to mt7530_setup(). Drop the unnecessary function printing.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Link: https://lore.kernel.org/r/20240206-for-netnext-mt7530-improvements-2-v5-2-d7d92a185cb1@arinc9.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/dsa/mt7530.c | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -408,13 +408,6 @@ mt7530_pad_clk_setup(struct dsa_switch *
xtal = mt7530_read(priv, MT7530_MHWTRAP) & HWTRAP_XTAL_MASK;
- if (xtal == HWTRAP_XTAL_20MHZ) {
- dev_err(priv->dev,
- "%s: MT7530 with a 20MHz XTAL is not supported!\n",
- __func__);
- return -EINVAL;
- }
-
switch (interface) {
case PHY_INTERFACE_MODE_RGMII:
trgint = 0;
@@ -2286,6 +2279,12 @@ mt7530_setup(struct dsa_switch *ds)
return -ENODEV;
}
+ if ((val & HWTRAP_XTAL_MASK) == HWTRAP_XTAL_20MHZ) {
+ dev_err(priv->dev,
+ "MT7530 with a 20MHz XTAL is not supported!\n");
+ return -EINVAL;
+ }
+
/* Reset the switch through internal reset */
mt7530_write(priv, MT7530_SYS_CTRL,
SYS_CTRL_PHY_RST | SYS_CTRL_SW_RST |

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From 7199c736aa8cd9c69ae681a9c733408372c2ce76 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Tue, 6 Feb 2024 01:08:04 +0300
Subject: [PATCH 32/48] net: dsa: mt7530: simplify mt7530_pad_clk_setup()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This code is from before this driver was converted to phylink API. Phylink
deals with the unsupported interface cases before mt7530_pad_clk_setup() is
run. Therefore, the default case would never run. However, it must be
defined nonetheless to handle all the remaining enumeration values, the
phy-modes.
Switch to if statement for RGMII and return which simplifies the code and
saves an indent.
Set P6_INTF_MODE, which is the three least significant bits of the
MT7530_P6ECR register, to 0 for RGMII even though it will already be 0
after reset. This is to keep supporting dynamic reconfiguration of the port
in the case the interface changes from TRGMII to RGMII.
Disable the TRGMII clocks for all cases. They will be enabled if TRGMII is
being used.
Read XTAL after checking for RGMII as it's only needed for the TRGMII
interface mode.
Reviewed-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20240206-for-netnext-mt7530-improvements-2-v5-3-d7d92a185cb1@arinc9.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/dsa/mt7530.c | 91 ++++++++++++++++++----------------------
1 file changed, 40 insertions(+), 51 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -404,65 +404,54 @@ static int
mt7530_pad_clk_setup(struct dsa_switch *ds, phy_interface_t interface)
{
struct mt7530_priv *priv = ds->priv;
- u32 ncpo1, ssc_delta, trgint, xtal;
+ u32 ncpo1, ssc_delta, xtal;
- xtal = mt7530_read(priv, MT7530_MHWTRAP) & HWTRAP_XTAL_MASK;
+ /* Disable the MT7530 TRGMII clocks */
+ core_clear(priv, CORE_TRGMII_GSW_CLK_CG, REG_TRGMIICK_EN);
- switch (interface) {
- case PHY_INTERFACE_MODE_RGMII:
- trgint = 0;
- break;
- case PHY_INTERFACE_MODE_TRGMII:
- trgint = 1;
- if (xtal == HWTRAP_XTAL_25MHZ)
- ssc_delta = 0x57;
- else
- ssc_delta = 0x87;
- if (priv->id == ID_MT7621) {
- /* PLL frequency: 125MHz: 1.0GBit */
- if (xtal == HWTRAP_XTAL_40MHZ)
- ncpo1 = 0x0640;
- if (xtal == HWTRAP_XTAL_25MHZ)
- ncpo1 = 0x0a00;
- } else { /* PLL frequency: 250MHz: 2.0Gbit */
- if (xtal == HWTRAP_XTAL_40MHZ)
- ncpo1 = 0x0c80;
- if (xtal == HWTRAP_XTAL_25MHZ)
- ncpo1 = 0x1400;
- }
- break;
- default:
- dev_err(priv->dev, "xMII interface %d not supported\n",
- interface);
- return -EINVAL;
+ if (interface == PHY_INTERFACE_MODE_RGMII) {
+ mt7530_rmw(priv, MT7530_P6ECR, P6_INTF_MODE_MASK,
+ P6_INTF_MODE(0));
+ return 0;
}
- mt7530_rmw(priv, MT7530_P6ECR, P6_INTF_MODE_MASK,
- P6_INTF_MODE(trgint));
+ mt7530_rmw(priv, MT7530_P6ECR, P6_INTF_MODE_MASK, P6_INTF_MODE(1));
- if (trgint) {
- /* Disable the MT7530 TRGMII clocks */
- core_clear(priv, CORE_TRGMII_GSW_CLK_CG, REG_TRGMIICK_EN);
-
- /* Setup the MT7530 TRGMII Tx Clock */
- core_write(priv, CORE_PLL_GROUP5, RG_LCDDS_PCW_NCPO1(ncpo1));
- core_write(priv, CORE_PLL_GROUP6, RG_LCDDS_PCW_NCPO0(0));
- core_write(priv, CORE_PLL_GROUP10, RG_LCDDS_SSC_DELTA(ssc_delta));
- core_write(priv, CORE_PLL_GROUP11, RG_LCDDS_SSC_DELTA1(ssc_delta));
- core_write(priv, CORE_PLL_GROUP4,
- RG_SYSPLL_DDSFBK_EN | RG_SYSPLL_BIAS_EN |
- RG_SYSPLL_BIAS_LPF_EN);
- core_write(priv, CORE_PLL_GROUP2,
- RG_SYSPLL_EN_NORMAL | RG_SYSPLL_VODEN |
- RG_SYSPLL_POSDIV(1));
- core_write(priv, CORE_PLL_GROUP7,
- RG_LCDDS_PCW_NCPO_CHG | RG_LCCDS_C(3) |
- RG_LCDDS_PWDB | RG_LCDDS_ISO_EN);
+ xtal = mt7530_read(priv, MT7530_MHWTRAP) & HWTRAP_XTAL_MASK;
- /* Enable the MT7530 TRGMII clocks */
- core_set(priv, CORE_TRGMII_GSW_CLK_CG, REG_TRGMIICK_EN);
+ if (xtal == HWTRAP_XTAL_25MHZ)
+ ssc_delta = 0x57;
+ else
+ ssc_delta = 0x87;
+
+ if (priv->id == ID_MT7621) {
+ /* PLL frequency: 125MHz: 1.0GBit */
+ if (xtal == HWTRAP_XTAL_40MHZ)
+ ncpo1 = 0x0640;
+ if (xtal == HWTRAP_XTAL_25MHZ)
+ ncpo1 = 0x0a00;
+ } else { /* PLL frequency: 250MHz: 2.0Gbit */
+ if (xtal == HWTRAP_XTAL_40MHZ)
+ ncpo1 = 0x0c80;
+ if (xtal == HWTRAP_XTAL_25MHZ)
+ ncpo1 = 0x1400;
}
+ /* Setup the MT7530 TRGMII Tx Clock */
+ core_write(priv, CORE_PLL_GROUP5, RG_LCDDS_PCW_NCPO1(ncpo1));
+ core_write(priv, CORE_PLL_GROUP6, RG_LCDDS_PCW_NCPO0(0));
+ core_write(priv, CORE_PLL_GROUP10, RG_LCDDS_SSC_DELTA(ssc_delta));
+ core_write(priv, CORE_PLL_GROUP11, RG_LCDDS_SSC_DELTA1(ssc_delta));
+ core_write(priv, CORE_PLL_GROUP4, RG_SYSPLL_DDSFBK_EN |
+ RG_SYSPLL_BIAS_EN | RG_SYSPLL_BIAS_LPF_EN);
+ core_write(priv, CORE_PLL_GROUP2, RG_SYSPLL_EN_NORMAL |
+ RG_SYSPLL_VODEN | RG_SYSPLL_POSDIV(1));
+ core_write(priv, CORE_PLL_GROUP7, RG_LCDDS_PCW_NCPO_CHG |
+ RG_LCCDS_C(3) | RG_LCDDS_PWDB | RG_LCDDS_ISO_EN);
+
+ /* Enable the MT7530 TRGMII clocks */
+ core_set(priv, CORE_TRGMII_GSW_CLK_CG, REG_TRGMIICK_EN);
+
return 0;
}

97
target/linux/generic/backport-6.1/790-33-v6.9-net-dsa-mt7530-call-port-6-setup-from-mt7530_mac_con.patch Normal file
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@ -0,0 +1,97 @@
From 921a7deee767aa157b5372863a4c1cac53e5c53a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Tue, 6 Feb 2024 01:08:05 +0300
Subject: [PATCH 33/48] net: dsa: mt7530: call port 6 setup from
mt7530_mac_config()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
mt7530_pad_clk_setup() is called if port 6 is enabled. It used to do more
things than setting up port 6. That part was moved to more appropriate
locations, mt7530_setup() and mt7530_pll_setup().
Now that all it does is set up port 6, rename it to mt7530_setup_port6(),
and move it to a more appropriate location, under mt7530_mac_config().
Change mt7530_setup_port6() to void as there're no error cases.
Leave an empty mt7530_pad_clk_setup() to satisfy the pad_setup function
pointer.
This is the code path for setting up the ports before:
dsa_switch_ops :: phylink_mac_config() -> mt753x_phylink_mac_config()
-> mt753x_mac_config()
-> mt753x_info :: mac_port_config() -> mt7530_mac_config()
-> mt7530_setup_port5()
-> mt753x_pad_setup()
-> mt753x_info :: pad_setup() -> mt7530_pad_clk_setup()
This is after:
dsa_switch_ops :: phylink_mac_config() -> mt753x_phylink_mac_config()
-> mt753x_mac_config()
-> mt753x_info :: mac_port_config() -> mt7530_mac_config()
-> mt7530_setup_port5()
-> mt7530_setup_port6()
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Link: https://lore.kernel.org/r/20240206-for-netnext-mt7530-improvements-2-v5-4-d7d92a185cb1@arinc9.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/dsa/mt7530.c | 19 +++++++++++--------
1 file changed, 11 insertions(+), 8 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -400,8 +400,8 @@ static void mt7530_pll_setup(struct mt75
}
/* Setup port 6 interface mode and TRGMII TX circuit */
-static int
-mt7530_pad_clk_setup(struct dsa_switch *ds, phy_interface_t interface)
+static void
+mt7530_setup_port6(struct dsa_switch *ds, phy_interface_t interface)
{
struct mt7530_priv *priv = ds->priv;
u32 ncpo1, ssc_delta, xtal;
@@ -412,7 +412,7 @@ mt7530_pad_clk_setup(struct dsa_switch *
if (interface == PHY_INTERFACE_MODE_RGMII) {
mt7530_rmw(priv, MT7530_P6ECR, P6_INTF_MODE_MASK,
P6_INTF_MODE(0));
- return 0;
+ return;
}
mt7530_rmw(priv, MT7530_P6ECR, P6_INTF_MODE_MASK, P6_INTF_MODE(1));
@@ -451,7 +451,11 @@ mt7530_pad_clk_setup(struct dsa_switch *
/* Enable the MT7530 TRGMII clocks */
core_set(priv, CORE_TRGMII_GSW_CLK_CG, REG_TRGMIICK_EN);
+}
+static int
+mt7530_pad_clk_setup(struct dsa_switch *ds, phy_interface_t interface)
+{
return 0;
}
@@ -2640,11 +2644,10 @@ mt7530_mac_config(struct dsa_switch *ds,
{
struct mt7530_priv *priv = ds->priv;
- /* Only need to setup port5. */
- if (port != 5)
- return 0;
-
- mt7530_setup_port5(priv->ds, interface);
+ if (port == 5)
+ mt7530_setup_port5(priv->ds, interface);
+ else if (port == 6)
+ mt7530_setup_port6(priv->ds, interface);
return 0;
}

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@ -0,0 +1,148 @@
From fcbc5d900fa53f79963fe4626069739ee5567b4b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Tue, 6 Feb 2024 01:08:06 +0300
Subject: [PATCH 34/48] net: dsa: mt7530: remove pad_setup function pointer
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The pad_setup function pointer was introduced with 88bdef8be9f6 ("net: dsa:
mt7530: Extend device data ready for adding a new hardware"). It was being
used to set up the core clock and port 6 of the MT7530 switch, and pll of
the MT7531 switch.
All of these were moved to more appropriate locations, and it was never
used for the switch on the MT7988 SoC. Therefore, this function pointer
hasn't got a use anymore. Remove it.
Acked-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Link: https://lore.kernel.org/r/20240206-for-netnext-mt7530-improvements-2-v5-5-d7d92a185cb1@arinc9.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/dsa/mt7530.c | 36 ++----------------------------------
drivers/net/dsa/mt7530.h | 3 ---
2 files changed, 2 insertions(+), 37 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -453,18 +453,6 @@ mt7530_setup_port6(struct dsa_switch *ds
core_set(priv, CORE_TRGMII_GSW_CLK_CG, REG_TRGMIICK_EN);
}
-static int
-mt7530_pad_clk_setup(struct dsa_switch *ds, phy_interface_t interface)
-{
- return 0;
-}
-
-static int
-mt7531_pad_setup(struct dsa_switch *ds, phy_interface_t interface)
-{
- return 0;
-}
-
static void
mt7531_pll_setup(struct mt7530_priv *priv)
{
@@ -2631,14 +2619,6 @@ static void mt7988_mac_port_get_caps(str
}
static int
-mt753x_pad_setup(struct dsa_switch *ds, const struct phylink_link_state *state)
-{
- struct mt7530_priv *priv = ds->priv;
-
- return priv->info->pad_setup(ds, state->interface);
-}
-
-static int
mt7530_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
phy_interface_t interface)
{
@@ -2803,8 +2783,6 @@ mt753x_phylink_mac_config(struct dsa_swi
if (priv->p6_interface == state->interface)
break;
- mt753x_pad_setup(ds, state);
-
if (mt753x_mac_config(ds, port, mode, state) < 0)
goto unsupported;
@@ -3127,11 +3105,6 @@ mt753x_conduit_state_change(struct dsa_s
mt7530_rmw(priv, MT7530_MFC, CPU_EN | CPU_PORT_MASK, val);
}
-static int mt7988_pad_setup(struct dsa_switch *ds, phy_interface_t interface)
-{
- return 0;
-}
-
static int mt7988_setup(struct dsa_switch *ds)
{
struct mt7530_priv *priv = ds->priv;
@@ -3192,7 +3165,6 @@ const struct mt753x_info mt753x_table[]
.sw_setup = mt7530_setup,
.phy_read = mt7530_phy_read,
.phy_write = mt7530_phy_write,
- .pad_setup = mt7530_pad_clk_setup,
.mac_port_get_caps = mt7530_mac_port_get_caps,
.mac_port_config = mt7530_mac_config,
},
@@ -3202,7 +3174,6 @@ const struct mt753x_info mt753x_table[]
.sw_setup = mt7530_setup,
.phy_read = mt7530_phy_read,
.phy_write = mt7530_phy_write,
- .pad_setup = mt7530_pad_clk_setup,
.mac_port_get_caps = mt7530_mac_port_get_caps,
.mac_port_config = mt7530_mac_config,
},
@@ -3212,7 +3183,6 @@ const struct mt753x_info mt753x_table[]
.sw_setup = mt7531_setup,
.phy_read = mt7531_ind_phy_read,
.phy_write = mt7531_ind_phy_write,
- .pad_setup = mt7531_pad_setup,
.cpu_port_config = mt7531_cpu_port_config,
.mac_port_get_caps = mt7531_mac_port_get_caps,
.mac_port_config = mt7531_mac_config,
@@ -3223,7 +3193,6 @@ const struct mt753x_info mt753x_table[]
.sw_setup = mt7988_setup,
.phy_read = mt7531_ind_phy_read,
.phy_write = mt7531_ind_phy_write,
- .pad_setup = mt7988_pad_setup,
.cpu_port_config = mt7988_cpu_port_config,
.mac_port_get_caps = mt7988_mac_port_get_caps,
.mac_port_config = mt7988_mac_config,
@@ -3253,9 +3222,8 @@ mt7530_probe_common(struct mt7530_priv *
/* Sanity check if these required device operations are filled
* properly.
*/
- if (!priv->info->sw_setup || !priv->info->pad_setup ||
- !priv->info->phy_read || !priv->info->phy_write ||
- !priv->info->mac_port_get_caps ||
+ if (!priv->info->sw_setup || !priv->info->phy_read ||
+ !priv->info->phy_write || !priv->info->mac_port_get_caps ||
!priv->info->mac_port_config)
return -EINVAL;
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -722,8 +722,6 @@ struct mt753x_pcs {
* @sw_setup: Holding the handler to a device initialization
* @phy_read: Holding the way reading PHY port
* @phy_write: Holding the way writing PHY port
- * @pad_setup: Holding the way setting up the bus pad for a certain
- * MAC port
* @phy_mode_supported: Check if the PHY type is being supported on a certain
* port
* @mac_port_validate: Holding the way to set addition validate type for a
@@ -739,7 +737,6 @@ struct mt753x_info {
int (*sw_setup)(struct dsa_switch *ds);
int (*phy_read)(struct mt7530_priv *priv, int port, int regnum);
int (*phy_write)(struct mt7530_priv *priv, int port, int regnum, u16 val);
- int (*pad_setup)(struct dsa_switch *ds, phy_interface_t interface);
int (*cpu_port_config)(struct dsa_switch *ds, int port);
void (*mac_port_get_caps)(struct dsa_switch *ds, int port,
struct phylink_config *config);

36
target/linux/generic/backport-6.1/790-35-v6.9-net-dsa-mt7530-correct-port-capabilities-of-MT7988.patch Normal file
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@ -0,0 +1,36 @@
From 58a94eb63233bb2ede13b183b6a6a03aa0a2dfc3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Tue, 6 Feb 2024 01:08:07 +0300
Subject: [PATCH 35/48] net: dsa: mt7530: correct port capabilities of MT7988
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
On the switch on the MT7988 SoC, as shown in Block Diagram 8.1.1.3 on page
125 of "MT7988A Wi-Fi 7 Generation Router Platform: Datasheet (Open
Version) v0.1", there are only 4 PHYs. That's port 0 to 3. Set the case for
ports which connect to switch PHYs to '0 ... 3'.
Port 4 and 5 are not used at all in this design.
Link: https://wiki.banana-pi.org/Banana_Pi_BPI-R4#Documents [1]
Acked-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Link: https://lore.kernel.org/r/20240206-for-netnext-mt7530-improvements-2-v5-6-d7d92a185cb1@arinc9.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/dsa/mt7530.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2604,7 +2604,7 @@ static void mt7988_mac_port_get_caps(str
switch (port) {
/* Ports which are connected to switch PHYs. There is no MII pinout. */
- case 0 ... 4:
+ case 0 ... 3:
__set_bit(PHY_INTERFACE_MODE_INTERNAL,
config->supported_interfaces);
break;

38
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@ -0,0 +1,38 @@
From 4440ce33074be6bd55d1a0c8b5f4b6d433ae2c74 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Tue, 6 Feb 2024 01:08:08 +0300
Subject: [PATCH 36/48] net: dsa: mt7530: do not clear
config->supported_interfaces
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
There's no need to clear the config->supported_interfaces bitmap before
reporting the supported interfaces as all bits in the bitmap will already
be initialized to zero when the phylink_config structure is allocated. The
"config" pointer points to &dp->phylink_config, and "dp" is allocated by
dsa_port_touch() with kzalloc(), so all its fields are filled with zeroes.
There's no code that would change the bitmap beforehand. Remove it.
Acked-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Link: https://lore.kernel.org/r/20240206-for-netnext-mt7530-improvements-2-v5-7-d7d92a185cb1@arinc9.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/dsa/mt7530.c | 2 --
1 file changed, 2 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2600,8 +2600,6 @@ static void mt7531_mac_port_get_caps(str
static void mt7988_mac_port_get_caps(struct dsa_switch *ds, int port,
struct phylink_config *config)
{
- phy_interface_zero(config->supported_interfaces);
-
switch (port) {
/* Ports which are connected to switch PHYs. There is no MII pinout. */
case 0 ... 3:

81
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@ -0,0 +1,81 @@
From 2f507aaeb1a12044f2376a255c2afff1f7432b0b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Fri, 1 Mar 2024 12:42:57 +0200
Subject: [PATCH 37/48] net: dsa: mt7530: remove .mac_port_config for MT7988
and make it optional
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
For the switch on the MT7988 SoC, the mac_port_config member for ID_MT7988
in mt753x_table is not needed as the interfaces of all MACs are already
handled on mt7988_mac_port_get_caps().
Therefore, remove the mac_port_config member from ID_MT7988 in
mt753x_table. Before calling priv->info->mac_port_config(), if there's no
mac_port_config member in mt753x_table, exit mt753x_mac_config()
successfully.
Remove calling priv->info->mac_port_config() from the sanity check as the
sanity check requires a pointer to a mac_port_config function to be
non-NULL. This will fail for MT7988 as mac_port_config won't be a member of
its info table.
Co-developed-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---
drivers/net/dsa/mt7530.c | 18 ++++--------------
1 file changed, 4 insertions(+), 14 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2683,17 +2683,6 @@ static bool mt753x_is_mac_port(u32 port)
}
static int
-mt7988_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
- phy_interface_t interface)
-{
- if (dsa_is_cpu_port(ds, port) &&
- interface == PHY_INTERFACE_MODE_INTERNAL)
- return 0;
-
- return -EINVAL;
-}
-
-static int
mt7531_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
phy_interface_t interface)
{
@@ -2733,6 +2722,9 @@ mt753x_mac_config(struct dsa_switch *ds,
{
struct mt7530_priv *priv = ds->priv;
+ if (!priv->info->mac_port_config)
+ return 0;
+
return priv->info->mac_port_config(ds, port, mode, state->interface);
}
@@ -3193,7 +3185,6 @@ const struct mt753x_info mt753x_table[]
.phy_write = mt7531_ind_phy_write,
.cpu_port_config = mt7988_cpu_port_config,
.mac_port_get_caps = mt7988_mac_port_get_caps,
- .mac_port_config = mt7988_mac_config,
},
};
EXPORT_SYMBOL_GPL(mt753x_table);
@@ -3221,8 +3212,7 @@ mt7530_probe_common(struct mt7530_priv *
* properly.
*/
if (!priv->info->sw_setup || !priv->info->phy_read ||
- !priv->info->phy_write || !priv->info->mac_port_get_caps ||
- !priv->info->mac_port_config)
+ !priv->info->phy_write || !priv->info->mac_port_get_caps)
return -EINVAL;
priv->id = priv->info->id;

31
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@ -0,0 +1,31 @@
From 0e297b1c662825f7dcd97272323c81f502987e0f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Fri, 1 Mar 2024 12:42:58 +0200
Subject: [PATCH 38/48] net: dsa: mt7530: set interrupt register only for
MT7530
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Setting this register related to interrupts is only needed for the MT7530
switch. Make an exclusive check to ensure this.
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Acked-by: Daniel Golle <daniel@makrotopia.org>
Tested-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---
drivers/net/dsa/mt7530.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2084,7 +2084,7 @@ mt7530_setup_irq(struct mt7530_priv *pri
}
/* This register must be set for MT7530 to properly fire interrupts */
- if (priv->id != ID_MT7531)
+ if (priv->id == ID_MT7530 || priv->id == ID_MT7621)
mt7530_set(priv, MT7530_TOP_SIG_CTRL, TOP_SIG_CTRL_NORMAL);
ret = request_threaded_irq(priv->irq, NULL, mt7530_irq_thread_fn,

41
target/linux/generic/backport-6.1/790-39-v6.9-net-dsa-mt7530-do-not-use-SW_PHY_RST-to-reset-MT7531.patch Normal file
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@ -0,0 +1,41 @@
From 0eb6bc551371070325b6606cc3bed6734ecad87d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Fri, 1 Mar 2024 12:42:59 +0200
Subject: [PATCH 39/48] net: dsa: mt7530: do not use SW_PHY_RST to reset MT7531
switch
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
According to the document MT7531 Reference Manual for Development Board
v1.0, the SW_PHY_RST bit on the SYS_CTRL register doesn't exist for
MT7531. This is likely why forcing link down on all ports is necessary for
MT7531.
Therefore, do not set SW_PHY_RST on mt7531_setup().
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---
drivers/net/dsa/mt7530.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2478,14 +2478,12 @@ mt7531_setup(struct dsa_switch *ds)
val = mt7530_read(priv, MT7531_TOP_SIG_SR);
priv->p5_sgmii = !!(val & PAD_DUAL_SGMII_EN);
- /* all MACs must be forced link-down before sw reset */
+ /* Force link down on all ports before internal reset */
for (i = 0; i < MT7530_NUM_PORTS; i++)
mt7530_write(priv, MT7530_PMCR_P(i), MT7531_FORCE_LNK);
/* Reset the switch through internal reset */
- mt7530_write(priv, MT7530_SYS_CTRL,
- SYS_CTRL_PHY_RST | SYS_CTRL_SW_RST |
- SYS_CTRL_REG_RST);
+ mt7530_write(priv, MT7530_SYS_CTRL, SYS_CTRL_SW_RST | SYS_CTRL_REG_RST);
if (!priv->p5_sgmii) {
mt7531_pll_setup(priv);

217
target/linux/generic/backport-6.1/790-40-v6.9-net-dsa-mt7530-get-rid-of-useless-error-returns-on-p.patch Normal file
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@ -0,0 +1,217 @@
From bb20b1b4d832de4eb98ec7c22906db7c04e3f7c5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Fri, 1 Mar 2024 12:43:00 +0200
Subject: [PATCH 40/48] net: dsa: mt7530: get rid of useless error returns on
phylink code path
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Remove error returns on the cases where they are already handled with the
function the mac_port_get_caps member in mt753x_table points to.
mt7531_mac_config() is also called from mt7531_cpu_port_config() outside of
phylink but the port and interface modes are already handled there.
Change the functions and the mac_port_config function pointer to void now
that there're no error returns anymore.
Remove mt753x_is_mac_port() that used to help the said error returns.
On mt7531_mac_config(), switch to if statements to simplify the code.
Remove internal phy cases from mt753x_phylink_mac_config(), there is no
need to check the interface mode as that's already handled with the
function the mac_port_get_caps member in mt753x_table points to.
Acked-by: Daniel Golle <daniel@makrotopia.org>
Tested-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---
drivers/net/dsa/mt7530.c | 81 ++++++++--------------------------------
drivers/net/dsa/mt7530.h | 6 +--
2 files changed, 19 insertions(+), 68 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2614,7 +2614,7 @@ static void mt7988_mac_port_get_caps(str
}
}
-static int
+static void
mt7530_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
phy_interface_t interface)
{
@@ -2624,22 +2624,14 @@ mt7530_mac_config(struct dsa_switch *ds,
mt7530_setup_port5(priv->ds, interface);
else if (port == 6)
mt7530_setup_port6(priv->ds, interface);
-
- return 0;
}
-static int mt7531_rgmii_setup(struct mt7530_priv *priv, u32 port,
- phy_interface_t interface,
- struct phy_device *phydev)
+static void mt7531_rgmii_setup(struct mt7530_priv *priv, u32 port,
+ phy_interface_t interface,
+ struct phy_device *phydev)
{
u32 val;
- if (priv->p5_sgmii) {
- dev_err(priv->dev, "RGMII mode is not available for port %d\n",
- port);
- return -EINVAL;
- }
-
val = mt7530_read(priv, MT7531_CLKGEN_CTRL);
val |= GP_CLK_EN;
val &= ~GP_MODE_MASK;
@@ -2667,20 +2659,14 @@ static int mt7531_rgmii_setup(struct mt7
case PHY_INTERFACE_MODE_RGMII_ID:
break;
default:
- return -EINVAL;
+ break;
}
}
- mt7530_write(priv, MT7531_CLKGEN_CTRL, val);
- return 0;
-}
-
-static bool mt753x_is_mac_port(u32 port)
-{
- return (port == 5 || port == 6);
+ mt7530_write(priv, MT7531_CLKGEN_CTRL, val);
}
-static int
+static void
mt7531_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
phy_interface_t interface)
{
@@ -2688,42 +2674,21 @@ mt7531_mac_config(struct dsa_switch *ds,
struct phy_device *phydev;
struct dsa_port *dp;
- if (!mt753x_is_mac_port(port)) {
- dev_err(priv->dev, "port %d is not a MAC port\n", port);
- return -EINVAL;
- }
-
- switch (interface) {
- case PHY_INTERFACE_MODE_RGMII:
- case PHY_INTERFACE_MODE_RGMII_ID:
- case PHY_INTERFACE_MODE_RGMII_RXID:
- case PHY_INTERFACE_MODE_RGMII_TXID:
+ if (phy_interface_mode_is_rgmii(interface)) {
dp = dsa_to_port(ds, port);
phydev = dp->slave->phydev;
- return mt7531_rgmii_setup(priv, port, interface, phydev);
- case PHY_INTERFACE_MODE_SGMII:
- case PHY_INTERFACE_MODE_NA:
- case PHY_INTERFACE_MODE_1000BASEX:
- case PHY_INTERFACE_MODE_2500BASEX:
- /* handled in SGMII PCS driver */
- return 0;
- default:
- return -EINVAL;
+ mt7531_rgmii_setup(priv, port, interface, phydev);
}
-
- return -EINVAL;
}
-static int
+static void
mt753x_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
const struct phylink_link_state *state)
{
struct mt7530_priv *priv = ds->priv;
- if (!priv->info->mac_port_config)
- return 0;
-
- return priv->info->mac_port_config(ds, port, mode, state->interface);
+ if (priv->info->mac_port_config)
+ priv->info->mac_port_config(ds, port, mode, state->interface);
}
static struct phylink_pcs *
@@ -2752,17 +2717,11 @@ mt753x_phylink_mac_config(struct dsa_swi
u32 mcr_cur, mcr_new;
switch (port) {
- case 0 ... 4:
- if (state->interface != PHY_INTERFACE_MODE_GMII &&
- state->interface != PHY_INTERFACE_MODE_INTERNAL)
- goto unsupported;
- break;
case 5:
if (priv->p5_interface == state->interface)
break;
- if (mt753x_mac_config(ds, port, mode, state) < 0)
- goto unsupported;
+ mt753x_mac_config(ds, port, mode, state);
if (priv->p5_intf_sel != P5_DISABLED)
priv->p5_interface = state->interface;
@@ -2771,16 +2730,10 @@ mt753x_phylink_mac_config(struct dsa_swi
if (priv->p6_interface == state->interface)
break;
- if (mt753x_mac_config(ds, port, mode, state) < 0)
- goto unsupported;
+ mt753x_mac_config(ds, port, mode, state);
priv->p6_interface = state->interface;
break;
- default:
-unsupported:
- dev_err(ds->dev, "%s: unsupported %s port: %i\n",
- __func__, phy_modes(state->interface), port);
- return;
}
mcr_cur = mt7530_read(priv, MT7530_PMCR_P(port));
@@ -2863,7 +2816,6 @@ mt7531_cpu_port_config(struct dsa_switch
struct mt7530_priv *priv = ds->priv;
phy_interface_t interface;
int speed;
- int ret;
switch (port) {
case 5:
@@ -2888,9 +2840,8 @@ mt7531_cpu_port_config(struct dsa_switch
else
speed = SPEED_1000;
- ret = mt7531_mac_config(ds, port, MLO_AN_FIXED, interface);
- if (ret)
- return ret;
+ mt7531_mac_config(ds, port, MLO_AN_FIXED, interface);
+
mt7530_write(priv, MT7530_PMCR_P(port),
PMCR_CPU_PORT_SETTING(priv->id));
mt753x_phylink_mac_link_up(ds, port, MLO_AN_FIXED, interface, NULL,
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -743,9 +743,9 @@ struct mt753x_info {
void (*mac_port_validate)(struct dsa_switch *ds, int port,
phy_interface_t interface,
unsigned long *supported);
- int (*mac_port_config)(struct dsa_switch *ds, int port,
- unsigned int mode,
- phy_interface_t interface);
+ void (*mac_port_config)(struct dsa_switch *ds, int port,
+ unsigned int mode,
+ phy_interface_t interface);
};
/* struct mt7530_priv - This is the main data structure for holding the state

305
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@ -0,0 +1,305 @@
From 8554f6a7914d28b179671540f527897d85c88809 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Fri, 1 Mar 2024 12:43:01 +0200
Subject: [PATCH 41/48] net: dsa: mt7530: get rid of
priv->info->cpu_port_config()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
priv->info->cpu_port_config() is used for MT7531 and the switch on the
MT7988 SoC. It sets up the ports described as a CPU port earlier than the
phylink code path would do.
This function is useless as:
- Configuring the MACs can be done from the phylink_mac_config code path
instead.
- All the link configuration it does on the CPU ports are later undone with
the port_enable, phylink_mac_config, and then phylink_mac_link_up code
path [1].
priv->p5_interface and priv->p6_interface were being used to prevent
configuring the MACs from the phylink_mac_config code path. Remove them now
that they hold no purpose.
Remove priv->info->cpu_port_config(). On mt753x_phylink_mac_config, switch
to if statements to simplify the code.
Remove the overwriting of the speed and duplex interfaces for certain
interface modes. Phylink already provides the speed and duplex variables
with proper values. Phylink already sets the max speed of TRGMII to
SPEED_1000. Add SPEED_2500 for PHY_INTERFACE_MODE_2500BASEX to where the
speed and EEE bits are set instead.
On the switch on the MT7988 SoC, PHY_INTERFACE_MODE_INTERNAL is being used
to describe the interface mode of the 10G MAC, which is of port 6. On
mt7988_cpu_port_config() PMCR_FORCE_SPEED_1000 was set via the
PMCR_CPU_PORT_SETTING() mask. Add SPEED_10000 case to where the speed bits
are set to cover this. No need to add it to where the EEE bits are set as
the "MT7988A Wi-Fi 7 Generation Router Platform: Datasheet (Open Version)
v0.1" document shows that these bits don't exist on the MT7530_PMCR_P(6)
register.
Remove the definition of PMCR_CPU_PORT_SETTING() now that it holds no
purpose.
Change mt753x_cpu_port_enable() to void now that there're no error cases
left.
Link: https://lore.kernel.org/netdev/ZHy2jQLesdYFMQtO@shell.armlinux.org.uk/ [1]
Suggested-by: Russell King (Oracle) <linux@armlinux.org.uk>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---
drivers/net/dsa/mt7530.c | 114 +++------------------------------------
drivers/net/dsa/mt7530.h | 11 ----
2 files changed, 7 insertions(+), 118 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -995,18 +995,10 @@ mt753x_trap_frames(struct mt7530_priv *p
MT753X_BPDU_CPU_ONLY);
}
-static int
+static void
mt753x_cpu_port_enable(struct dsa_switch *ds, int port)
{
struct mt7530_priv *priv = ds->priv;
- int ret;
-
- /* Setup max capability of CPU port at first */
- if (priv->info->cpu_port_config) {
- ret = priv->info->cpu_port_config(ds, port);
- if (ret)
- return ret;
- }
/* Enable Mediatek header mode on the cpu port */
mt7530_write(priv, MT7530_PVC_P(port),
@@ -1032,8 +1024,6 @@ mt753x_cpu_port_enable(struct dsa_switch
/* Set to fallback mode for independent VLAN learning */
mt7530_rmw(priv, MT7530_PCR_P(port), PCR_PORT_VLAN_MASK,
MT7530_PORT_FALLBACK_MODE);
-
- return 0;
}
static int
@@ -2288,8 +2278,6 @@ mt7530_setup(struct dsa_switch *ds)
val |= MHWTRAP_MANUAL;
mt7530_write(priv, MT7530_MHWTRAP, val);
- priv->p6_interface = PHY_INTERFACE_MODE_NA;
-
mt753x_trap_frames(priv);
/* Enable and reset MIB counters */
@@ -2304,9 +2292,7 @@ mt7530_setup(struct dsa_switch *ds)
mt7530_set(priv, MT7530_PSC_P(i), SA_DIS);
if (dsa_is_cpu_port(ds, i)) {
- ret = mt753x_cpu_port_enable(ds, i);
- if (ret)
- return ret;
+ mt753x_cpu_port_enable(ds, i);
} else {
mt7530_port_disable(ds, i);
@@ -2410,9 +2396,7 @@ mt7531_setup_common(struct dsa_switch *d
mt7530_set(priv, MT7531_DBG_CNT(i), MT7531_DIS_CLR);
if (dsa_is_cpu_port(ds, i)) {
- ret = mt753x_cpu_port_enable(ds, i);
- if (ret)
- return ret;
+ mt753x_cpu_port_enable(ds, i);
} else {
mt7530_port_disable(ds, i);
@@ -2501,10 +2485,6 @@ mt7531_setup(struct dsa_switch *ds)
mt7530_rmw(priv, MT7531_GPIO_MODE0, MT7531_GPIO0_MASK,
MT7531_GPIO0_INTERRUPT);
- /* Let phylink decide the interface later. */
- priv->p5_interface = PHY_INTERFACE_MODE_NA;
- priv->p6_interface = PHY_INTERFACE_MODE_NA;
-
/* Enable PHY core PLL, since phy_device has not yet been created
* provided for phy_[read,write]_mmd_indirect is called, we provide
* our own mt7531_ind_mmd_phy_[read,write] to complete this
@@ -2716,26 +2696,9 @@ mt753x_phylink_mac_config(struct dsa_swi
struct mt7530_priv *priv = ds->priv;
u32 mcr_cur, mcr_new;
- switch (port) {
- case 5:
- if (priv->p5_interface == state->interface)
- break;
-
+ if (port == 5 || port == 6)
mt753x_mac_config(ds, port, mode, state);
- if (priv->p5_intf_sel != P5_DISABLED)
- priv->p5_interface = state->interface;
- break;
- case 6:
- if (priv->p6_interface == state->interface)
- break;
-
- mt753x_mac_config(ds, port, mode, state);
-
- priv->p6_interface = state->interface;
- break;
- }
-
mcr_cur = mt7530_read(priv, MT7530_PMCR_P(port));
mcr_new = mcr_cur;
mcr_new &= ~PMCR_LINK_SETTINGS_MASK;
@@ -2771,17 +2734,10 @@ static void mt753x_phylink_mac_link_up(s
mcr = PMCR_RX_EN | PMCR_TX_EN | PMCR_FORCE_LNK;
- /* MT753x MAC works in 1G full duplex mode for all up-clocked
- * variants.
- */
- if (interface == PHY_INTERFACE_MODE_TRGMII ||
- (phy_interface_mode_is_8023z(interface))) {
- speed = SPEED_1000;
- duplex = DUPLEX_FULL;
- }
-
switch (speed) {
case SPEED_1000:
+ case SPEED_2500:
+ case SPEED_10000:
mcr |= PMCR_FORCE_SPEED_1000;
break;
case SPEED_100:
@@ -2799,6 +2755,7 @@ static void mt753x_phylink_mac_link_up(s
if (mode == MLO_AN_PHY && phydev && phy_init_eee(phydev, false) >= 0) {
switch (speed) {
case SPEED_1000:
+ case SPEED_2500:
mcr |= PMCR_FORCE_EEE1G;
break;
case SPEED_100:
@@ -2810,61 +2767,6 @@ static void mt753x_phylink_mac_link_up(s
mt7530_set(priv, MT7530_PMCR_P(port), mcr);
}
-static int
-mt7531_cpu_port_config(struct dsa_switch *ds, int port)
-{
- struct mt7530_priv *priv = ds->priv;
- phy_interface_t interface;
- int speed;
-
- switch (port) {
- case 5:
- if (!priv->p5_sgmii)
- interface = PHY_INTERFACE_MODE_RGMII;
- else
- interface = PHY_INTERFACE_MODE_2500BASEX;
-
- priv->p5_interface = interface;
- break;
- case 6:
- interface = PHY_INTERFACE_MODE_2500BASEX;
-
- priv->p6_interface = interface;
- break;
- default:
- return -EINVAL;
- }
-
- if (interface == PHY_INTERFACE_MODE_2500BASEX)
- speed = SPEED_2500;
- else
- speed = SPEED_1000;
-
- mt7531_mac_config(ds, port, MLO_AN_FIXED, interface);
-
- mt7530_write(priv, MT7530_PMCR_P(port),
- PMCR_CPU_PORT_SETTING(priv->id));
- mt753x_phylink_mac_link_up(ds, port, MLO_AN_FIXED, interface, NULL,
- speed, DUPLEX_FULL, true, true);
-
- return 0;
-}
-
-static int
-mt7988_cpu_port_config(struct dsa_switch *ds, int port)
-{
- struct mt7530_priv *priv = ds->priv;
-
- mt7530_write(priv, MT7530_PMCR_P(port),
- PMCR_CPU_PORT_SETTING(priv->id));
-
- mt753x_phylink_mac_link_up(ds, port, MLO_AN_FIXED,
- PHY_INTERFACE_MODE_INTERNAL, NULL,
- SPEED_10000, DUPLEX_FULL, true, true);
-
- return 0;
-}
-
static void mt753x_phylink_get_caps(struct dsa_switch *ds, int port,
struct phylink_config *config)
{
@@ -3122,7 +3024,6 @@ const struct mt753x_info mt753x_table[]
.sw_setup = mt7531_setup,
.phy_read = mt7531_ind_phy_read,
.phy_write = mt7531_ind_phy_write,
- .cpu_port_config = mt7531_cpu_port_config,
.mac_port_get_caps = mt7531_mac_port_get_caps,
.mac_port_config = mt7531_mac_config,
},
@@ -3132,7 +3033,6 @@ const struct mt753x_info mt753x_table[]
.sw_setup = mt7988_setup,
.phy_read = mt7531_ind_phy_read,
.phy_write = mt7531_ind_phy_write,
- .cpu_port_config = mt7988_cpu_port_config,
.mac_port_get_caps = mt7988_mac_port_get_caps,
},
};
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -331,13 +331,6 @@ enum mt7530_vlan_port_acc_frm {
PMCR_TX_FC_EN | PMCR_RX_FC_EN | \
PMCR_FORCE_FDX | PMCR_FORCE_LNK | \
PMCR_FORCE_EEE1G | PMCR_FORCE_EEE100)
-#define PMCR_CPU_PORT_SETTING(id) (PMCR_FORCE_MODE_ID((id)) | \
- PMCR_IFG_XMIT(1) | PMCR_MAC_MODE | \
- PMCR_BACKOFF_EN | PMCR_BACKPR_EN | \
- PMCR_TX_EN | PMCR_RX_EN | \
- PMCR_TX_FC_EN | PMCR_RX_FC_EN | \
- PMCR_FORCE_SPEED_1000 | \
- PMCR_FORCE_FDX | PMCR_FORCE_LNK)
#define MT7530_PMEEECR_P(x) (0x3004 + (x) * 0x100)
#define WAKEUP_TIME_1000(x) (((x) & 0xFF) << 24)
@@ -737,7 +730,6 @@ struct mt753x_info {
int (*sw_setup)(struct dsa_switch *ds);
int (*phy_read)(struct mt7530_priv *priv, int port, int regnum);
int (*phy_write)(struct mt7530_priv *priv, int port, int regnum, u16 val);
- int (*cpu_port_config)(struct dsa_switch *ds, int port);
void (*mac_port_get_caps)(struct dsa_switch *ds, int port,
struct phylink_config *config);
void (*mac_port_validate)(struct dsa_switch *ds, int port,
@@ -763,7 +755,6 @@ struct mt753x_info {
* @ports: Holding the state among ports
* @reg_mutex: The lock for protecting among process accessing
* registers
- * @p6_interface Holding the current port 6 interface
* @p5_intf_sel: Holding the current port 5 interface select
* @p5_sgmii: Flag for distinguishing if port 5 of the MT7531 switch
* has got SGMII
@@ -785,8 +776,6 @@ struct mt7530_priv {
const struct mt753x_info *info;
unsigned int id;
bool mcm;
- phy_interface_t p6_interface;
- phy_interface_t p5_interface;
enum p5_interface_select p5_intf_sel;
bool p5_sgmii;
u8 mirror_rx;

48
target/linux/generic/backport-6.1/790-42-v6.9-net-dsa-mt7530-get-rid-of-mt753x_mac_config.patch Normal file
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@ -0,0 +1,48 @@
From 0c282205ef8c6dd6d2c145fac1fb6aba3e65c02d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Fri, 1 Mar 2024 12:43:02 +0200
Subject: [PATCH 42/48] net: dsa: mt7530: get rid of mt753x_mac_config()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
There is no need for a separate function to call
priv->info->mac_port_config(). Call it from mt753x_phylink_mac_config()
instead and remove mt753x_mac_config().
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---
drivers/net/dsa/mt7530.c | 14 ++------------
1 file changed, 2 insertions(+), 12 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2661,16 +2661,6 @@ mt7531_mac_config(struct dsa_switch *ds,
}
}
-static void
-mt753x_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
- const struct phylink_link_state *state)
-{
- struct mt7530_priv *priv = ds->priv;
-
- if (priv->info->mac_port_config)
- priv->info->mac_port_config(ds, port, mode, state->interface);
-}
-
static struct phylink_pcs *
mt753x_phylink_mac_select_pcs(struct dsa_switch *ds, int port,
phy_interface_t interface)
@@ -2696,8 +2686,8 @@ mt753x_phylink_mac_config(struct dsa_swi
struct mt7530_priv *priv = ds->priv;
u32 mcr_cur, mcr_new;
- if (port == 5 || port == 6)
- mt753x_mac_config(ds, port, mode, state);
+ if ((port == 5 || port == 6) && priv->info->mac_port_config)
+ priv->info->mac_port_config(ds, port, mode, state->interface);
mcr_cur = mt7530_read(priv, MT7530_PMCR_P(port));
mcr_new = mcr_cur;

57
target/linux/generic/backport-6.1/790-43-v6.9-net-dsa-mt7530-put-initialising-PCS-devices-code-bac.patch Normal file
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@ -0,0 +1,57 @@
From d55c300aa1fe240aa3eba18550ba6c4e2c4bd157 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Fri, 1 Mar 2024 12:43:03 +0200
Subject: [PATCH 43/48] net: dsa: mt7530: put initialising PCS devices code
back to original order
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The commit fae463084032 ("net: dsa: mt753x: fix pcs conversion regression")
fixes regression caused by cpu_port_config manually calling phylink
operations. cpu_port_config was deemed useless and was removed. Therefore,
put initialising PCS devices code back to its original order.
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---
drivers/net/dsa/mt7530.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2845,17 +2845,9 @@ static int
mt753x_setup(struct dsa_switch *ds)
{
struct mt7530_priv *priv = ds->priv;
- int i, ret;
+ int ret = priv->info->sw_setup(ds);
+ int i;
- /* Initialise the PCS devices */
- for (i = 0; i < priv->ds->num_ports; i++) {
- priv->pcs[i].pcs.ops = priv->info->pcs_ops;
- priv->pcs[i].pcs.neg_mode = true;
- priv->pcs[i].priv = priv;
- priv->pcs[i].port = i;
- }
-
- ret = priv->info->sw_setup(ds);
if (ret)
return ret;
@@ -2867,6 +2859,14 @@ mt753x_setup(struct dsa_switch *ds)
if (ret && priv->irq)
mt7530_free_irq_common(priv);
+ /* Initialise the PCS devices */
+ for (i = 0; i < priv->ds->num_ports; i++) {
+ priv->pcs[i].pcs.ops = priv->info->pcs_ops;
+ priv->pcs[i].pcs.neg_mode = true;
+ priv->pcs[i].priv = priv;
+ priv->pcs[i].port = i;
+ }
+
if (priv->create_sgmii) {
ret = priv->create_sgmii(priv);
if (ret && priv->irq)

68
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@ -0,0 +1,68 @@
From a9544caa482a7ed215117a902f04185216997831 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Fri, 1 Mar 2024 12:43:04 +0200
Subject: [PATCH 44/48] net: dsa: mt7530: sort link settings ops and force link
down on all ports
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
port_enable and port_disable clears the link settings. Move that to
mt7530_setup() and mt7531_setup_common() which set up the switches. This
way, the link settings are cleared on all ports at setup, and then only
once with phylink_mac_link_down() when a link goes down.
Enable force mode at setup to apply the force part of the link settings.
This ensures that disabled ports will have their link down.
Suggested-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---
drivers/net/dsa/mt7530.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -1047,7 +1047,6 @@ mt7530_port_enable(struct dsa_switch *ds
priv->ports[port].enable = true;
mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK,
priv->ports[port].pm);
- mt7530_clear(priv, MT7530_PMCR_P(port), PMCR_LINK_SETTINGS_MASK);
mutex_unlock(&priv->reg_mutex);
@@ -1067,7 +1066,6 @@ mt7530_port_disable(struct dsa_switch *d
priv->ports[port].enable = false;
mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK,
PCR_MATRIX_CLR);
- mt7530_clear(priv, MT7530_PMCR_P(port), PMCR_LINK_SETTINGS_MASK);
mutex_unlock(&priv->reg_mutex);
}
@@ -2284,6 +2282,12 @@ mt7530_setup(struct dsa_switch *ds)
mt7530_mib_reset(ds);
for (i = 0; i < MT7530_NUM_PORTS; i++) {
+ /* Clear link settings and enable force mode to force link down
+ * on all ports until they're enabled later.
+ */
+ mt7530_rmw(priv, MT7530_PMCR_P(i), PMCR_LINK_SETTINGS_MASK |
+ PMCR_FORCE_MODE, PMCR_FORCE_MODE);
+
/* Disable forwarding by default on all ports */
mt7530_rmw(priv, MT7530_PCR_P(i), PCR_MATRIX_MASK,
PCR_MATRIX_CLR);
@@ -2386,6 +2390,12 @@ mt7531_setup_common(struct dsa_switch *d
UNU_FFP_MASK);
for (i = 0; i < MT7530_NUM_PORTS; i++) {
+ /* Clear link settings and enable force mode to force link down
+ * on all ports until they're enabled later.
+ */
+ mt7530_rmw(priv, MT7530_PMCR_P(i), PMCR_LINK_SETTINGS_MASK |
+ MT7531_FORCE_MODE, MT7531_FORCE_MODE);
+
/* Disable forwarding by default on all ports */
mt7530_rmw(priv, MT7530_PCR_P(i), PCR_MATRIX_MASK,
PCR_MATRIX_CLR);

83
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@ -0,0 +1,83 @@
From 89017cac5f6fbaab23955818c31b3c7f1eb26f4a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Fri, 1 Mar 2024 12:43:05 +0200
Subject: [PATCH 45/48] net: dsa: mt7530: simplify link operations
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The "MT7621 Giga Switch Programming Guide v0.3", "MT7531 Reference Manual
for Development Board v1.0", and "MT7988A Wi-Fi 7 Generation Router
Platform: Datasheet (Open Version) v0.1" documents show that these bits are
enabled at reset:
PMCR_IFG_XMIT(1) (not part of PMCR_LINK_SETTINGS_MASK)
PMCR_MAC_MODE (not part of PMCR_LINK_SETTINGS_MASK)
PMCR_TX_EN
PMCR_RX_EN
PMCR_BACKOFF_EN (not part of PMCR_LINK_SETTINGS_MASK)
PMCR_BACKPR_EN (not part of PMCR_LINK_SETTINGS_MASK)
PMCR_TX_FC_EN
PMCR_RX_FC_EN
These bits also don't exist on the MT7530_PMCR_P(6) register of the switch
on the MT7988 SoC:
PMCR_IFG_XMIT()
PMCR_MAC_MODE
PMCR_BACKOFF_EN
PMCR_BACKPR_EN
Remove the setting of the bits not part of PMCR_LINK_SETTINGS_MASK on
phylink_mac_config as they're already set.
The bit for setting the port on force mode is already done on
mt7530_setup() and mt7531_setup_common(). So get rid of
PMCR_FORCE_MODE_ID() which helped determine which bit to use for the switch
model.
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---
drivers/net/dsa/mt7530.c | 12 +-----------
drivers/net/dsa/mt7530.h | 2 --
2 files changed, 1 insertion(+), 13 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2694,23 +2694,13 @@ mt753x_phylink_mac_config(struct dsa_swi
const struct phylink_link_state *state)
{
struct mt7530_priv *priv = ds->priv;
- u32 mcr_cur, mcr_new;
if ((port == 5 || port == 6) && priv->info->mac_port_config)
priv->info->mac_port_config(ds, port, mode, state->interface);
- mcr_cur = mt7530_read(priv, MT7530_PMCR_P(port));
- mcr_new = mcr_cur;
- mcr_new &= ~PMCR_LINK_SETTINGS_MASK;
- mcr_new |= PMCR_IFG_XMIT(1) | PMCR_MAC_MODE | PMCR_BACKOFF_EN |
- PMCR_BACKPR_EN | PMCR_FORCE_MODE_ID(priv->id);
-
/* Are we connected to external phy */
if (port == 5 && dsa_is_user_port(ds, 5))
- mcr_new |= PMCR_EXT_PHY;
-
- if (mcr_new != mcr_cur)
- mt7530_write(priv, MT7530_PMCR_P(port), mcr_new);
+ mt7530_set(priv, MT7530_PMCR_P(port), PMCR_EXT_PHY);
}
static void mt753x_phylink_mac_link_down(struct dsa_switch *ds, int port,
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -324,8 +324,6 @@ enum mt7530_vlan_port_acc_frm {
MT7531_FORCE_DPX | \
MT7531_FORCE_RX_FC | \
MT7531_FORCE_TX_FC)
-#define PMCR_FORCE_MODE_ID(id) ((((id) == ID_MT7531) || ((id) == ID_MT7988)) ? \
- MT7531_FORCE_MODE : PMCR_FORCE_MODE)
#define PMCR_LINK_SETTINGS_MASK (PMCR_TX_EN | PMCR_FORCE_SPEED_1000 | \
PMCR_RX_EN | PMCR_FORCE_SPEED_100 | \
PMCR_TX_FC_EN | PMCR_RX_FC_EN | \

74
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@ -0,0 +1,74 @@
From cfa7c85f92cd3814ad9748eb1ab25658c7f7cc67 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Wed, 20 Mar 2024 23:45:30 +0300
Subject: [PATCH 48/48] net: dsa: mt7530: fix improper frames on all 25MHz and
40MHz XTAL MT7530
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The MT7530 switch after reset initialises with a core clock frequency that
works with a 25MHz XTAL connected to it. For 40MHz XTAL, the core clock
frequency must be set to 500MHz.
The mt7530_pll_setup() function is responsible of setting the core clock
frequency. Currently, it runs on MT7530 with 25MHz and 40MHz XTAL. This
causes MT7530 switch with 25MHz XTAL to egress and ingress frames
improperly.
Introduce a check to run it only on MT7530 with 40MHz XTAL.
The core clock frequency is set by writing to a switch PHY's register.
Access to the PHY's register is done via the MDIO bus the switch is also
on. Therefore, it works only when the switch makes switch PHYs listen on
the MDIO bus the switch is on. This is controlled either by the state of
the ESW_P1_LED_1 pin after reset deassertion or modifying bit 5 of the
modifiable trap register.
When ESW_P1_LED_1 is pulled high, PHY indirect access is used. That means
accessing PHY registers via the PHY indirect access control register of the
switch.
When ESW_P1_LED_1 is pulled low, PHY direct access is used. That means
accessing PHY registers via the MDIO bus the switch is on.
For MT7530 switch with 40MHz XTAL on a board with ESW_P1_LED_1 pulled high,
the core clock frequency won't be set to 500MHz, causing the switch to
egress and ingress frames improperly.
Run mt7530_pll_setup() after PHY direct access is set on the modifiable
trap register.
With these two changes, all MT7530 switches with 25MHz and 40MHz, and
P1_LED_1 pulled high or low, will egress and ingress frames properly.
Link: https://github.com/BPI-SINOVOIP/BPI-R2-bsp/blob/4a5dd143f2172ec97a2872fa29c7c4cd520f45b5/linux-mt/drivers/net/ethernet/mediatek/gsw_mt7623.c#L1039
Fixes: b8f126a8d543 ("net-next: dsa: add dsa support for Mediatek MT7530 switch")
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Link: https://lore.kernel.org/r/20240320-for-net-mt7530-fix-25mhz-xtal-with-direct-phy-access-v1-1-d92f605f1160@arinc9.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---
drivers/net/dsa/mt7530.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2259,8 +2259,6 @@ mt7530_setup(struct dsa_switch *ds)
SYS_CTRL_PHY_RST | SYS_CTRL_SW_RST |
SYS_CTRL_REG_RST);
- mt7530_pll_setup(priv);
-
/* Lower Tx driving for TRGMII path */
for (i = 0; i < NUM_TRGMII_CTRL; i++)
mt7530_write(priv, MT7530_TRGMII_TD_ODT(i),
@@ -2276,6 +2274,9 @@ mt7530_setup(struct dsa_switch *ds)
val |= MHWTRAP_MANUAL;
mt7530_write(priv, MT7530_MHWTRAP, val);
+ if ((val & HWTRAP_XTAL_MASK) == HWTRAP_XTAL_40MHZ)
+ mt7530_pll_setup(priv);
+
mt753x_trap_frames(priv);
/* Enable and reset MIB counters */

28
target/linux/generic/pending-6.1/723-net-mt7531-ensure-all-MACs-are-powered-down-before-r.patch
View File

@ -1,28 +0,0 @@
From 3fb8841513c4ec3a2e5d366df86230c45f239a57 Mon Sep 17 00:00:00 2001
From: Alexander Couzens <lynxis@fe80.eu>
Date: Sat, 13 Aug 2022 13:08:22 +0200
Subject: [PATCH 03/10] net: mt7531: ensure all MACs are powered down before
reset
The datasheet [1] explicit describes it as requirement for a reset.
[1] MT7531 Reference Manual for Development Board rev 1.0, page 735
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
---
drivers/net/dsa/mt7530.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2252,6 +2252,10 @@ mt7530_setup(struct dsa_switch *ds)
return -ENODEV;
}
+ /* all MACs must be forced link-down before sw reset */
+ for (i = 0; i < MT7530_NUM_PORTS; i++)
+ mt7530_write(priv, MT7530_PMCR_P(i), MT7531_FORCE_LNK);
+
/* Reset the switch through internal reset */
mt7530_write(priv, MT7530_SYS_CTRL,
SYS_CTRL_PHY_RST | SYS_CTRL_SW_RST |

43
target/linux/generic/pending-6.1/795-mt7530-register-OF-node-for-internal-MDIO-bus.patch
View File

@ -1,43 +0,0 @@
From 1d81e51d6d79d9098013b2e8cdd677bae998c5d8 Mon Sep 17 00:00:00 2001
From: David Bauer <mail@david-bauer.net>
Date: Fri, 28 Apr 2023 02:22:59 +0200
Subject: [PATCH 1/2] mt7530: register OF node for internal MDIO bus
The MT753x switches provide a switch-internal MDIO bus for the embedded
PHYs.
Register a OF sub-node on the switch OF-node for this internal MDIO bus.
This allows to configure the embedded PHYs using device-tree.
Signed-off-by: David Bauer <mail@david-bauer.net>
---
drivers/net/dsa/mt7530.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2142,10 +2142,13 @@ mt7530_setup_mdio(struct mt7530_priv *pr
{
struct dsa_switch *ds = priv->ds;
struct device *dev = priv->dev;
+ struct device_node *np, *mnp;
struct mii_bus *bus;
static int idx;
int ret;
+ np = priv->dev->of_node;
+
bus = devm_mdiobus_alloc(dev);
if (!bus)
return -ENOMEM;
@@ -2162,7 +2165,9 @@ mt7530_setup_mdio(struct mt7530_priv *pr
if (priv->irq)
mt7530_setup_mdio_irq(priv);
- ret = devm_mdiobus_register(dev, bus);
+ mnp = of_get_child_by_name(np, "mdio");
+ ret = devm_of_mdiobus_register(dev, bus, mnp);
+ of_node_put(mnp);
if (ret) {
dev_err(dev, "failed to register MDIO bus: %d\n", ret);
if (priv->irq)

45
target/linux/generic/pending-6.1/796-net-dsa-mt7530-fix-10M-100M-speed-on-MT7988-switch.patch
View File

@ -1,45 +0,0 @@
From a444877c10a665cd8a869e6d37facdb89fd95f79 Mon Sep 17 00:00:00 2001
Message-ID: <a444877c10a665cd8a869e6d37facdb89fd95f79.1706070008.git.daniel@makrotopia.org>
From: Daniel Golle <daniel@makrotopia.org>
Date: Wed, 24 Jan 2024 04:17:11 +0000
Subject: [PATCH net] net: dsa: mt7530: fix 10M/100M speed on MT7988 switch
To: Arınç ÜNAL <arinc.unal@arinc9.com>,
Daniel Golle <daniel@makrotopia.org>,
DENG Qingfang <dqfext@gmail.com>,
Sean Wang <sean.wang@mediatek.com>,
Andrew Lunn <andrew@lunn.ch>,
Florian Fainelli <f.fainelli@gmail.com>,
Vladimir Oltean <olteanv@gmail.com>,
David S. Miller <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>,
Paolo Abeni <pabeni@redhat.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>,
netdev@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org
Setup PMCR port register for actual speed and duplex on internally
connected PHYs of the MT7988 built-in switch. This fixes links with
speeds other than 1000M.
Fixes: ("110c18bfed414 net: dsa: mt7530: introduce driver for MT7988 built-in switch")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
drivers/net/dsa/mt7530.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2849,8 +2849,7 @@ static void mt753x_phylink_mac_link_up(s
/* MT753x MAC works in 1G full duplex mode for all up-clocked
* variants.
*/
- if (interface == PHY_INTERFACE_MODE_INTERNAL ||
- interface == PHY_INTERFACE_MODE_TRGMII ||
+ if (interface == PHY_INTERFACE_MODE_TRGMII ||
(phy_interface_mode_is_8023z(interface))) {
speed = SPEED_1000;
duplex = DUPLEX_FULL;