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| author | Dongjin Kim <tobetter@gmail.com> | 2021-08-26 05:28:32 +0200 |
|---|---|---|
| committer | Neil Armstrong <narmstrong@baylibre.com> | 2021-09-13 09:45:53 +0200 |
| commit | 9d02214f8332d5dbbcce3d6c5c915e54d43a0c46 (patch) | |
| tree | 0293a4252660a90656abd3af7ffa8795fd448e23 /arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi | |
| parent | Linux 5.15-rc1 (diff) | |
| download | linux-9d02214f8332d5dbbcce3d6c5c915e54d43a0c46.tar.xz linux-9d02214f8332d5dbbcce3d6c5c915e54d43a0c46.zip | |
arm64: dts: meson: sm1: add Ethernet PHY reset line for ODROID-C4/HC4
This patch is to fix an issue that the ethernet link doesn't come up
when using ip link set down/up:
[ 11.428114] meson8b-dwmac ff3f0000.ethernet eth0: Link is Down
[ 14.428595] meson8b-dwmac ff3f0000.ethernet eth0: PHY [0.0:00] driver [RTL8211F Gigabit Ethernet] (irq=31)
[ 14.428610] meson8b-dwmac ff3f0000.ethernet: Failed to reset the dma
[ 14.428974] meson8b-dwmac ff3f0000.ethernet eth0: stmmac_hw_setup: DMA engine initialization failed
[ 14.711185] meson8b-dwmac ff3f0000.ethernet eth0: stmmac_open: Hw setup failed
This fix refers to two commits applied for ODROID-N2 (G12B).
commit 658e4129bb81 ("arm64: dts: meson: g12b: odroid-n2: add the Ethernet PHY reset line")
commit 1c7412530d5d0 ("arm64: dts: meson: g12b: odroid-n2: fix PHY deassert timing requirements")
Fixes: 88d537bc92ca ("arm64: dts: meson: convert meson-sm1-odroid-c4 to dtsi")
Signed-off-by: Dongjin Kim <tobetter@gmail.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
[narmstrong: added fixes tag and typo in commit log]
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/YScKYFWlYymgGw3l@anyang-linuxfactory-or-kr
Diffstat (limited to 'arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi')
| -rw-r--r-- | arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi b/arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi index fd0ad85c165b..45e7fcb062f9 100644 --- a/arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi @@ -263,6 +263,10 @@ reg = <0>; max-speed = <1000>; + reset-assert-us = <10000>; + reset-deassert-us = <80000>; + reset-gpios = <&gpio GPIOZ_15 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>; + interrupt-parent = <&gpio_intc>; /* MAC_INTR on GPIOZ_14 */ interrupts = <26 IRQ_TYPE_LEVEL_LOW>; |