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cddd459140
Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release which was tagged LSDK-20.04-V5.4. https://source.codeaurora.org/external/qoriq/qoriq-components/linux/ For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in LSDK, port the dts patches from 4.14. The patches are sorted into the following categories: 301-arch-xxxx 302-dts-xxxx 303-core-xxxx 701-net-xxxx 801-audio-xxxx 802-can-xxxx 803-clock-xxxx 804-crypto-xxxx 805-display-xxxx 806-dma-xxxx 807-gpio-xxxx 808-i2c-xxxx 809-jailhouse-xxxx 810-keys-xxxx 811-kvm-xxxx 812-pcie-xxxx 813-pm-xxxx 814-qe-xxxx 815-sata-xxxx 816-sdhc-xxxx 817-spi-xxxx 818-thermal-xxxx 819-uart-xxxx 820-usb-xxxx 821-vfio-xxxx Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
36 lines
1.3 KiB
Diff
36 lines
1.3 KiB
Diff
From 774408ea6a55b9d40b7bdc4ff4e33f1464c605c9 Mon Sep 17 00:00:00 2001
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From: Alex Marginean <alexandru.marginean@nxp.com>
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Date: Wed, 8 Jan 2020 13:15:07 +0200
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Subject: [PATCH] drivers: net: dsa: felix: Handle PAUSE Rx regardless of AN
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result
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Flow control is used with 2500Base-X and AQR PHYs to do rate adapation
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between line side 100/1000 links and MAC running at 2.5G. This is
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independent of the flow control configuration settled on line side though
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AN. In general allowing MAC to handle flow control even though AN did
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not enable it explicitly should not be a problem, so the patch enables
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it in all cases.
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Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
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---
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drivers/net/dsa/ocelot/felix.c | 8 ++++++--
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1 file changed, 6 insertions(+), 2 deletions(-)
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--- a/drivers/net/dsa/ocelot/felix.c
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+++ b/drivers/net/dsa/ocelot/felix.c
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@@ -267,8 +267,12 @@ static void felix_phylink_mac_config(str
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* specification in incoming pause frames.
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*/
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mac_fc_cfg = SYS_MAC_FC_CFG_FC_LINK_SPEED(state->speed);
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- if (state->pause & MLO_PAUSE_RX)
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- mac_fc_cfg |= SYS_MAC_FC_CFG_RX_FC_ENA;
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+
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+ /* handle Rx pause in all cases, with 2500base-X this is used for rate
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+ * adaptation.
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+ */
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+ mac_fc_cfg |= SYS_MAC_FC_CFG_RX_FC_ENA;
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+
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if (state->pause & MLO_PAUSE_TX)
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mac_fc_cfg |= SYS_MAC_FC_CFG_TX_FC_ENA |
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SYS_MAC_FC_CFG_PAUSE_VAL_CFG(0xffff) |
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