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From 693aa021add61922682c5cf6f5678f04fe7b94ef Mon Sep 17 00:00:00 2001
From: Willy Tarreau <w@xxxxxx>
Date: Sun, 2 Dec 2012 19:56:58 +0100
Subject: [PATCH 2/8] ARM: atags/fdt: retrieve MAC addresses from Marvell boot
loader
The atags are parsed and if a Marvell atag is found, up to 4 MAC
addresses are extracted there and assigned to node aliases eth0..3
with the name "mac-address".
This was tested on my Mirabox and the two NICs had their correct
address set.
Signed-off-by: Willy Tarreau <w@xxxxxx>
---
arch/arm/boot/compressed/atags_to_fdt.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/compressed/atags_to_fdt.c b/arch/arm/boot/compressed/atags_to_fdt.c
index 9448aa0..ac7b6ae 100644
--- a/arch/arm/boot/compressed/atags_to_fdt.c
+++ b/arch/arm/boot/compressed/atags_to_fdt.c
@@ -18,7 +18,7 @@ static int node_offset(void *fdt, const char *node_path)
}
static int setprop(void *fdt, const char *node_path, const char *property,
- uint32_t *val_array, int size)
+ void *val_array, int size)
{
int offset = node_offset(fdt, node_path);
if (offset < 0)
@@ -179,6 +179,12 @@ int atags_to_fdt(void *atag_list, void *fdt, int total_space)
initrd_start);
setprop_cell(fdt, "/chosen", "linux,initrd-end",
initrd_start + initrd_size);
+ } else if (atag->hdr.tag == ATAG_MV_UBOOT) {
+ /* This ATAG provides up to 4 MAC addresses */
+ setprop(fdt, "eth0", "mac-address", atag->u.mv_uboot.macAddr[0], 6);
+ setprop(fdt, "eth1", "mac-address", atag->u.mv_uboot.macAddr[1], 6);
+ setprop(fdt, "eth2", "mac-address", atag->u.mv_uboot.macAddr[2], 6);
+ setprop(fdt, "eth3", "mac-address", atag->u.mv_uboot.macAddr[3], 6);
}
}
--
2.4.5
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