diff options
| author | Sebastian Reichel <sebastian.reichel@collabora.com> | 2021-04-23 16:15:08 +0200 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2021-05-02 12:46:54 +0200 |
| commit | 4ac026a937993230ce22782d20c3c92441a115b9 (patch) | |
| tree | 34bcaf1e53186c483d4275cbef83b3e542c2b468 /arch | |
| parent | 512bda95ed08dee32853f55983caacf939ae7bd5 (diff) | |
board: ge: bx50v3: add phy reset GPIO
Add PHY's reset GPIO, so that U-Boot does a PHY hard reset.
This is needed, since the PHY might become unresponsive if
watchdog reboots the system while a transaction is ongoing.
The reset GPIO is added to the U-Boot specific DT files, since
the kernel does not setup the reserved registers correctly after
resetting the PHY and thus must not reset it.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/dts/imx6q-bx50v3-uboot.dtsi | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/dts/imx6q-bx50v3-uboot.dtsi b/arch/arm/dts/imx6q-bx50v3-uboot.dtsi index 2de3b850ec8..b54e8e6ada7 100644 --- a/arch/arm/dts/imx6q-bx50v3-uboot.dtsi +++ b/arch/arm/dts/imx6q-bx50v3-uboot.dtsi @@ -35,3 +35,15 @@ }; }; }; + +/* + * This is not done in imx6q-ba16.dtsi, since that file is shared + * with the kernel and the kernel should not reset the PHY, since + * it lacks support for configuring the reserved registeres to + * avoid a board specific voltage peak issue. + */ +&fec { + phy-reset-gpios = <&gpio1 28 GPIO_ACTIVE_LOW>; + phy-reset-duration = <1>; + phy-reset-post-delay = <0>; +}; |