[bug report] sunxi: H6: no ethernet on Orange Pi One Plus

[Fabio Estevam]

On Wed, Jul 5, 2023 at 1:31 PM Anne Macedo <retpolanne at posteo.net> wrote:

> I think I'm on the right path :)
>
> 1. Included SUNXI_SETUP_REGULATORS=0 to the bl31 make
> 2. Changed the phy mode on arch/arm/dts/sun50i-h6-orangepi-one-plus.dts
>    From rgmii-id to rgmii

This does not look like the correct fix. Please see this commit from Linux:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.4.1&id=544cc3f8573bf9a82e8f348741f2f68d2a8376fb

>    More info on [1][2][3]
> 3. Added this configs to configs/orangepi_one_plus_defconfig:
>    CONFIG_SPL_SPI_SUNXI=y
>    CONFIG_SUNXI_NO_PMIC=y
>    CONFIG_SUN8I_EMAC=y
>
> Result:
>
> U-Boot 2023.04-gfd4ed6b (Apr 03 2023 - 20:38:50 +0000) Allwinner
> Technology
>
> CPU:   Allwinner H6 (SUN50I)
> Model: OrangePi One Plus
> DRAM:  1 GiB
> Core:  55 devices, 17 uclasses, devicetree: separate
> WDT:   Not starting watchdog at 7020400
> MMC:   mmc at 4020000: 0
> Loading Environment from FAT... Unable to read "uboot.env" from
> mmc0:1...
> In:    serial at 5000000
> Out:   serial at 5000000
> Err:   serial at 5000000
> Net:   eth0: ethernet at 5020000
>
> => dhcp
> sun8i_emac_eth_start: Timeout
> => mdio list
> ethernet at 5020000:
> 1 - Generic PHY <--> ethernet at 5020000

What about using the Realtek PHY driver instead of the Generic one?

--- a/configs/orangepi_one_plus_defconfig
+++ b/configs/orangepi_one_plus_defconfig
@@ -8,3 +8,6 @@ CONFIG_SUNXI_DRAM_H6_LPDDR3=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_OHCI_HCD=y
+CONFIG_PHY_REALTEK=y
+CONFIG_RGMII=y
+CONFIG_MII=y

Does this help?