diff options
| author |   Stefan Agner <stefan@agner.ch> | 2020-12-07 18:58:00 +0100 |
|---|---|---|
| committer |   Kevin Hilman <khilman@baylibre.com> | 2020-12-07 11:12:49 -0800 |
| commit | c183c406c4321002fe85b345b51bc1a3a04b6d33 (patch) | |
| tree | 3a58ca42a5f1d81b174710ab84eef85a4b0cad12 /arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts | |
| parent | arm64: dts: meson: g12b: odroid-n2: fix PHY deassert timing requirements (diff) | |
| download | linux-dev-c183c406c4321002fe85b345b51bc1a3a04b6d33.tar.xz linux-dev-c183c406c4321002fe85b345b51bc1a3a04b6d33.zip | |
arm64: dts: meson: fix PHY deassert timing requirements
According to the datasheet (Rev. 1.9) the RTL8211F requires at least
72ms "for internal circuits settling time" before accessing the PHY
registers. This fixes an issue seen on ODROID-C2 where the Ethernet
link doesn't come up when using ip link set down/up:
[ 6630.714855] meson8b-dwmac c9410000.ethernet eth0: Link is Down
[ 6630.785775] meson8b-dwmac c9410000.ethernet eth0: PHY [stmmac-0:00] driver [RTL8211F Gigabit Ethernet] (irq=36)
[ 6630.893071] meson8b-dwmac c9410000.ethernet: Failed to reset the dma
[ 6630.893800] meson8b-dwmac c9410000.ethernet eth0: stmmac_hw_setup: DMA engine initialization failed
[ 6630.902835] meson8b-dwmac c9410000.ethernet eth0: stmmac_open: Hw setup failed
Fixes: f29cabf240ed ("arm64: dts: meson: use the generic Ethernet PHY reset GPIO bindings")
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/4a322c198b86e4c8b3dda015560a683babea4d63.1607363522.git.stefan@agner.ch
Diffstat (limited to 'arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts')
| -rw-r--r-- | arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts index 9d8c919c6e19..c04ef57f7b3b 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts +++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts @@ -240,7 +240,7 @@ reg = <0>; reset-assert-us = <10000>; - reset-deassert-us = <30000>; + reset-deassert-us = <80000>; reset-gpios = <&gpio GPIOZ_14 GPIO_ACTIVE_LOW>; interrupt-parent = <&gpio_intc>; |