| From 01e0a08c71b5dc0f302be3ab7c920fd65ff24ac3 Mon Sep 17 00:00:00 2001 |
| From: "Leonidas P. Papadakos" <papadakospan@gmail.com> |
| Date: Fri, 1 Mar 2019 00:29:23 +0200 |
| Subject: arm64: dts: rockchip: fix rk3328-roc-cc gmac2io tx/rx_delay |
| |
| [ Upstream commit 924726888f660b2a86382a5dd051ec9ca1b18190 ] |
| |
| The rk3328-roc-cc board exhibits tx stability issues with large packets, |
| as does the rock64 board, which was fixed with this patch |
| https://patchwork.kernel.org/patch/10178969/ |
| |
| A similar patch was merged for the rk3328-roc-cc here |
| https://patchwork.kernel.org/patch/10804863/ |
| but it doesn't include the tx/rx_delay tweaks, and I find that they |
| help with an issue where large transfers would bring the ethernet |
| link down, causing a link reset regularly. |
| |
| Signed-off-by: Leonidas P. Papadakos <papadakospan@gmail.com> |
| Signed-off-by: Heiko Stuebner <heiko@sntech.de> |
| Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org> |
| --- |
| arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts | 4 ++-- |
| 1 file changed, 2 insertions(+), 2 deletions(-) |
| |
| diff --git a/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts b/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts |
| index 99d0d9912950..a91f87df662e 100644 |
| --- a/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts |
| +++ b/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts |
| @@ -107,8 +107,8 @@ |
| snps,reset-gpio = <&gpio1 RK_PC2 GPIO_ACTIVE_LOW>; |
| snps,reset-active-low; |
| snps,reset-delays-us = <0 10000 50000>; |
| - tx_delay = <0x25>; |
| - rx_delay = <0x11>; |
| + tx_delay = <0x24>; |
| + rx_delay = <0x18>; |
| status = "okay"; |
| }; |
| |
| -- |
| 2.20.1 |
| |
