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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: "Leonidas P. Papadakos" <papadakospan@gmail.com>,
	Heiko Stuebner <heiko@sntech.de>, Sasha Levin <sashal@kernel.org>,
	devicetree@vger.kernel.org, linux-rockchip@lists.infradead.org
Subject: [PATCH AUTOSEL 4.19 01/52] arm64: dts: rockchip: fix rk3328-roc-cc gmac2io tx/rx_delay
Date: Wed, 24 Apr 2019 09:57:06 -0400	[thread overview]
Message-ID: <20190424135758.22850-1-sashal@kernel.org> (raw)

From: "Leonidas P. Papadakos" <papadakospan@gmail.com>

[ 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 <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 246c317f6a68..91061d9cf78b 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts
@@ -94,8 +94,8 @@
 	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";
 };
 
-- 
2.19.1


             reply	other threads:[~2019-04-24 13:58 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-24 13:57 Sasha Levin [this message]
2019-04-24 13:57 ` [PATCH AUTOSEL 4.19 02/52] HID: logitech: check the return value of create_singlethread_workqueue Sasha Levin
  -- strict thread matches above, loose matches on Subject: below --
2019-04-24 14:38 [PATCH AUTOSEL 4.19 01/52] arm64: dts: rockchip: fix rk3328-roc-cc gmac2io tx/rx_delay Sasha Levin

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