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authorAntoine Mazeas <antoine@karthanis.net>2022-08-19 10:56:46 +0200
committerPeter Robinson <pbrobinson@gmail.com>2023-03-14 12:12:13 +0000
commit4a45086c0ca874858d4064ee26d45199bcab494d (patch)
tree1088fa79365442b02d00bf936015bc3b23f9524d /board/raspberrypi
parent6d0642494993f39440a4d6e95f88c0456ee6d689 (diff)
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rpi: Copy eth PHY address from fw DT to loaded DT
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 <antoine@karthanis.net> Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Diffstat (limited to 'board/raspberrypi')
-rw-r--r--board/raspberrypi/rpi/rpi.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/board/raspberrypi/rpi/rpi.c b/board/raspberrypi/rpi/rpi.c
index d4b059c620..fc1fffedfb 100644
--- a/board/raspberrypi/rpi/rpi.c
+++ b/board/raspberrypi/rpi/rpi.c
@@ -547,6 +547,9 @@ 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)