From: Martin Blumenstingl <martin.blumensti...@googlemail.com> Date: Fri, 25 Sep 2020 23:56:29 +0200
> The Amlogic dwmac Ethernet IP glue has two registers: > - PRG_ETH0 with various configuration bits > - PRG_ETH1 with various calibration and information related bits > > Add the register definitions with comments from different drivers in > Amlogic's vendor u-boot and Linux. > > The most important part is PRG_ETH1_AUTO_CALI_IDX_VAL which is needed on > G12A (and later: G12B, SM1) with RGMII PHYs. Ethernet is only working up > to 100Mbit/s speeds if u-boot does not initialize these bits correctly. > On 1Gbit/s links no traffic is flowing (similar to when the RGMII delays > are set incorrectly). The logic to write this register will be added > later. > > Signed-off-by: Martin Blumenstingl <martin.blumensti...@googlemail.com> Please add these definitions alongside actual uses of them. Thank you.
