Dne nedelja, 08. november 2020 ob 15:44:54 CET je Marc Haber napisal(a): > On Mon, Oct 19, 2020 at 12:14:29PM +0800, Chen-Yu Tsai wrote: > > The proper fix now is to check the schematics, and change the phy-mode > > property to the correct type. It used to be that we used "rgmii" for all > > RGMII PHYs. > > > > Turns out there are four modes of RGMII, depending on whether the MAC or > > PHY enable TX / RX signal delays. > > > > Most boards in sunxi are designed so that the PHY is providing both TX and > > RX delays, which is done by pulling up the TXDLY and RXDLY pins at power > > up. > > > > The commit "net: phy: realtek: fix rtl8211e rx/tx delay config" fixes the > > PHY driver so that it will correctly "reconfigure" the PHY to the > > requested mode. Previously this was not happening due to incorrect > > register definitions. > > > > To summarize, the PHY driver fix exposes errors in our DTs. > > The Banana Pi still doesn't work properly in kernel 5.9.6. I am not in > a position to check schematics and to fix DTs.
Discussion of proper way of handling this breakage is still ongoing between maintainers. > > Look at git log for arch/arm/boot/dts/sun7i-a20-bananapi.dts, that would > be you, Chen-Yu Tsai and Maxime Ripard. > > Is there anything I can do to help debugging? Everything about this issue is known. In the meantime, you can use any of these workarounds/fixes: 1. Apply DT fix: https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/ linux.git/commit/?h=sunxi/fixes- for-5.10&id=8c9cb4094ccf242eddd140efba13872c55f68a87 2. Revert commit bbc4d71d63549bcd003a430de18a72a742d8c91e 3. disable Realtek PHY driver in your kernel. It should still work trough generic PHY driver. Best regards, Jernej -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/linux-sunxi/3531591.HxRJl5LH01%40jernej-laptop.
