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openwrt/target/linux/ipq806x/patches-5.10/103-ARM-dts-qcom-reduce-pci...

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ipq806x: reduce pci IO space to 64k With some talk with the ARM maintainer, it was notice that enlarging the limit to the current value is VERY wrong and clash with other memory. A better solution would be to reduce the IO space from 1MB to 64K as probably it's a long lasting typo and even x86 arch doesn't have a IO space that big. Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
2021-05-12 00:13:04 +02:00
From 84909e85881d67244240c9f40974ce12a51e3886 Mon Sep 17 00:00:00 2001
From: Ansuel Smith <ansuelsmth@gmail.com>
Date: Tue, 11 May 2021 23:09:45 +0200
Subject: [PATCH] ARM: dts: qcom: reduce pci IO size to 64K
The current value is probably a typo and is actually uncommon to find
1MB IO space even on a x86 arch. Also with recent changes to the pci
driver, pci1 and pci2 now fails to function as any connected device
fails any reg read/write. Reduce this to 64K as it should be more than
enough and 3 * 64K of total IO space doesn't exceed the IO_SPACE_LIMIT
hardcoded for the ARM arch.
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
---
arch/arm/boot/dts/qcom-ipq8064.dtsi | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/arch/arm/boot/dts/qcom-ipq8064.dtsi
+++ b/arch/arm/boot/dts/qcom-ipq8064.dtsi
ipq806x: fix min<>target opp-microvolt DTS mixup Rearrange all voltage triplets for "opp_table0" to match the specifications. "opp-microvolt" and "opp-microvolt-<name>" triplets are in order of <target min max>, and NOT <min target max>. Previously, the CPU would *always* spend its time at the "minimum" voltage, ignoring the actual intended target. This is a regression from previous behavior. On an NBG6817 with a Qualcomm CPU of PVS bin #2... (see &opp_table0 -> opp-1725000000 -> opp-microvolt-speed0-pvs2-v0) * Before: /usr/bin/tail -n +1 /sys/kernel/debug/opp/cpu0/opp\:1725000000/supply-0/u_volt_* ==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_max <== 1260000 ==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_min <== 1200000 ==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_target <== 1140000 * After: /usr/bin/tail -n +1 /sys/kernel/debug/opp/cpu0/opp\:1725000000/supply-0/u_volt_* ==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_max <== 1260000 ==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_min <== 1140000 ==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_target <== 1200000 To check voltages and frequencies at run time, use... /bin/cat /sys/kernel/debug/regulator/regulator_summary && /bin/cat /sys/kernel/debug/clk/clk_summary | grep "hfpll" See https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/Documentation/devicetree/bindings/opp/opp.txt?h=v5.4.142#n91 Fixes: 1e25423be8ac ("ipq806x: refresh dtsi patches") Signed-off-by: Shane Synan <digitalcircuit36939@gmail.com> Reviewed-by: Ansuel Smith <ansuelsmth@gmail.com> [commit message style cleanup, another kernel refresh] Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2021-08-19 20:22:48 +02:00
@@ -1088,7 +1088,7 @@
ipq806x: reduce pci IO space to 64k With some talk with the ARM maintainer, it was notice that enlarging the limit to the current value is VERY wrong and clash with other memory. A better solution would be to reduce the IO space from 1MB to 64K as probably it's a long lasting typo and even x86 arch doesn't have a IO space that big. Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
2021-05-12 00:13:04 +02:00
#address-cells = <3>;
#size-cells = <2>;
- ranges = <0x81000000 0 0x0fe00000 0x0fe00000 0 0x00100000 /* downstream I/O */
+ ranges = <0x81000000 0 0x0fe00000 0x0fe00000 0 0x00010000 /* downstream I/O */
0x82000000 0 0x08000000 0x08000000 0 0x07e00000>; /* non-prefetchable memory */
interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
ipq806x: fix min<>target opp-microvolt DTS mixup Rearrange all voltage triplets for "opp_table0" to match the specifications. "opp-microvolt" and "opp-microvolt-<name>" triplets are in order of <target min max>, and NOT <min target max>. Previously, the CPU would *always* spend its time at the "minimum" voltage, ignoring the actual intended target. This is a regression from previous behavior. On an NBG6817 with a Qualcomm CPU of PVS bin #2... (see &opp_table0 -> opp-1725000000 -> opp-microvolt-speed0-pvs2-v0) * Before: /usr/bin/tail -n +1 /sys/kernel/debug/opp/cpu0/opp\:1725000000/supply-0/u_volt_* ==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_max <== 1260000 ==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_min <== 1200000 ==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_target <== 1140000 * After: /usr/bin/tail -n +1 /sys/kernel/debug/opp/cpu0/opp\:1725000000/supply-0/u_volt_* ==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_max <== 1260000 ==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_min <== 1140000 ==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_target <== 1200000 To check voltages and frequencies at run time, use... /bin/cat /sys/kernel/debug/regulator/regulator_summary && /bin/cat /sys/kernel/debug/clk/clk_summary | grep "hfpll" See https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/Documentation/devicetree/bindings/opp/opp.txt?h=v5.4.142#n91 Fixes: 1e25423be8ac ("ipq806x: refresh dtsi patches") Signed-off-by: Shane Synan <digitalcircuit36939@gmail.com> Reviewed-by: Ansuel Smith <ansuelsmth@gmail.com> [commit message style cleanup, another kernel refresh] Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2021-08-19 20:22:48 +02:00
@@ -1139,7 +1139,7 @@
ipq806x: reduce pci IO space to 64k With some talk with the ARM maintainer, it was notice that enlarging the limit to the current value is VERY wrong and clash with other memory. A better solution would be to reduce the IO space from 1MB to 64K as probably it's a long lasting typo and even x86 arch doesn't have a IO space that big. Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
2021-05-12 00:13:04 +02:00
#address-cells = <3>;
#size-cells = <2>;
- ranges = <0x81000000 0 0x31e00000 0x31e00000 0 0x00100000 /* downstream I/O */
+ ranges = <0x81000000 0 0x31e00000 0x31e00000 0 0x00010000 /* downstream I/O */
0x82000000 0 0x2e000000 0x2e000000 0 0x03e00000>; /* non-prefetchable memory */
interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
ipq806x: fix min<>target opp-microvolt DTS mixup Rearrange all voltage triplets for "opp_table0" to match the specifications. "opp-microvolt" and "opp-microvolt-<name>" triplets are in order of <target min max>, and NOT <min target max>. Previously, the CPU would *always* spend its time at the "minimum" voltage, ignoring the actual intended target. This is a regression from previous behavior. On an NBG6817 with a Qualcomm CPU of PVS bin #2... (see &opp_table0 -> opp-1725000000 -> opp-microvolt-speed0-pvs2-v0) * Before: /usr/bin/tail -n +1 /sys/kernel/debug/opp/cpu0/opp\:1725000000/supply-0/u_volt_* ==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_max <== 1260000 ==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_min <== 1200000 ==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_target <== 1140000 * After: /usr/bin/tail -n +1 /sys/kernel/debug/opp/cpu0/opp\:1725000000/supply-0/u_volt_* ==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_max <== 1260000 ==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_min <== 1140000 ==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_target <== 1200000 To check voltages and frequencies at run time, use... /bin/cat /sys/kernel/debug/regulator/regulator_summary && /bin/cat /sys/kernel/debug/clk/clk_summary | grep "hfpll" See https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/Documentation/devicetree/bindings/opp/opp.txt?h=v5.4.142#n91 Fixes: 1e25423be8ac ("ipq806x: refresh dtsi patches") Signed-off-by: Shane Synan <digitalcircuit36939@gmail.com> Reviewed-by: Ansuel Smith <ansuelsmth@gmail.com> [commit message style cleanup, another kernel refresh] Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2021-08-19 20:22:48 +02:00
@@ -1190,7 +1190,7 @@
ipq806x: reduce pci IO space to 64k With some talk with the ARM maintainer, it was notice that enlarging the limit to the current value is VERY wrong and clash with other memory. A better solution would be to reduce the IO space from 1MB to 64K as probably it's a long lasting typo and even x86 arch doesn't have a IO space that big. Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
2021-05-12 00:13:04 +02:00
#address-cells = <3>;
#size-cells = <2>;
- ranges = <0x81000000 0 0x35e00000 0x35e00000 0 0x00100000 /* downstream I/O */
+ ranges = <0x81000000 0 0x35e00000 0x35e00000 0 0x00010000 /* downstream I/O */
0x82000000 0 0x32000000 0x32000000 0 0x03e00000>; /* non-prefetchable memory */
interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;