Some Raspberry Pi 400 boards, specifically rev 1.1, have a different address
for the ethernet PHY device than what is provided by the kernel DTB. The
correct address is provided by the firmware, so we should carry it over into
the loaded device tree so that ethernet works on such boards.
Signed-off-by: Antoine Mazeas <anto...@karthanis.net>
---
board/raspberrypi/rpi/rpi.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/board/raspberrypi/rpi/rpi.c b/board/raspberrypi/rpi/rpi.c
index 28b6f52506..793fd1aa30 100644
--- a/board/raspberrypi/rpi/rpi.c
+++ b/board/raspberrypi/rpi/rpi.c
@@ -548,6 +548,9 @@ void update_fdt_from_fw(void *fdt, void *fw_fdt)
/* kernel address randomisation seed as provided by the firmware */
copy_property(fdt, fw_fdt, "/chosen", "kaslr-seed");
+
+ /* address of the PHY device as provided by the firmware */
+ copy_property(fdt, fw_fdt, "ethernet0/mdio@e14/ethernet-phy@1", "reg");
}
int ft_board_setup(void *blob, struct bd_info *bd)
--
2.37.1
