diff options
| author | Evgeniy Didin <Evgeniy.Didin@synopsys.com> | 2020-07-07 18:38:58 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-09-23 11:46:27 +0300 |
| commit | fd3d985d5b1f6b78b41ca653e13d5a30eb5b8e00 (patch) | |
| tree | 459a520fb9b0f95388975e8273c06dcd89d6d3be /arch | |
| parent | e63175857d338d5889df9ad676bd105ac3001034 (diff) | |
| download | linux-fd3d985d5b1f6b78b41ca653e13d5a30eb5b8e00.tar.xz | |
ARC: [plat-hsdk]: Switch ethernet phy-mode to rgmii-id
[ Upstream commit 26907eb605fbc3ba9dbf888f21d9d8d04471271d ]
HSDK board has Micrel KSZ9031, recent commit
bcf3440c6dd ("net: phy: micrel: add phy-mode support for the KSZ9031 PHY")
caused a breakdown of Ethernet.
Using 'phy-mode = "rgmii"' is not correct because accodring RGMII
specification it is necessary to have delay on RX (PHY to MAX)
which is not generated in case of "rgmii".
Using "rgmii-id" adds necessary delay and solves the issue.
Also adding name of PHY placed on HSDK board.
Signed-off-by: Evgeniy Didin <Evgeniy.Didin@synopsys.com>
Cc: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arc/boot/dts/hsdk.dts | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts index aeacea148793..75aa3a8f9fdc 100644 --- a/arch/arc/boot/dts/hsdk.dts +++ b/arch/arc/boot/dts/hsdk.dts @@ -163,7 +163,7 @@ reg = <0x8000 0x2000>; interrupts = <10>; interrupt-names = "macirq"; - phy-mode = "rgmii"; + phy-mode = "rgmii-id"; snps,pbl = <32>; snps,multicast-filter-bins = <256>; clocks = <&gmacclk>; @@ -179,7 +179,7 @@ #address-cells = <1>; #size-cells = <0>; compatible = "snps,dwmac-mdio"; - phy0: ethernet-phy@0 { + phy0: ethernet-phy@0 { /* Micrel KSZ9031 */ reg = <0>; ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>; ti,tx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>; |