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

[Anne Macedo]

On Wed, Jul 05, 2023 at 02:15:43PM -0300, Fabio Estevam wrote:
> 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
>e>    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?

Sorry for the delay, life came in the way.

u-boot config:
CONFIG_PHY_REALTEK=y
CONFIG_RGMII=y
CONFIG_MII=y

tfa config:
SUNXI_SETUP_REGULATORS=0

result:
=> dhcp 
No ethernet found.

u-boot config:
CONFIG_SPL_SPI_SUNXI=y
CONFIG_SUNXI_NO_PMIC=y
CONFIG_SUN8I_EMAC=y
CONFIG_PHY_REALTEK=y
CONFIG_RGMII=y
CONFIG_MII=y

tfa config:
SUNXI_SETUP_REGULATORS=0

result:
Net:   PHY reset timed out
eth0: ethernet at 5020000
=> dhcp 
sun8i_emac_eth_start: Timeout
=> mdio list
ethernet at 5020000:
1 - Generic PHY <--> ethernet at 5020000

It's interesting that it keeps using Generic PHY.

Regards,
Anne