From: "Leonidas P. Papadakos" <papadakospan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Levin Du <djw-Efosm3t9Qi2Pt1CcHtbs0g@public.gmane.org>
Cc: linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>,
"Leonidas P. Papadakos"
<papadakospan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: [PATCH] arm64: dts: rockchip: fix rk3328-roc-cc gmac2io tx/rx_delay
Date: Fri, 1 Mar 2019 00:29:23 +0200 [thread overview]
Message-ID: <20190228222923.30418-1-papadakospan@gmail.com> (raw)
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-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.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 33c44e857..0e34354b2 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts
@@ -108,8 +108,8 @@
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";
};
--
2.21.0
next reply other threads:[~2019-02-28 22:29 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-28 22:29 Leonidas P. Papadakos [this message]
[not found] ` <20190228222923.30418-1-papadakospan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2019-03-03 14:10 ` [PATCH] arm64: dts: rockchip: fix rk3328-roc-cc gmac2io tx/rx_delay Heiko Stuebner
2019-03-06 1:36 ` Leonidas P. Papadakos
[not found] ` <1551836219.5698.0-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2019-03-06 7:43 ` Heiko Stübner
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