Hi Arno,
Arno Steffen wrote:
> Changing my OMAP EVM board to newest uboot 2009-11 I do have a problem
> with ethernet.
> Although the kernel could be loaded via tftp perfectly, the upcoming
> kernel complains about invalid MAC.
>
> Kernel command line: mem=128M console=ttyS0,115200n8
> root=/dev/mtdblock8 rw rootfstype=jffs2 ip=dhcp
> ...
On ARM, I solved that problem as follows:
1. Add "ethaddr=$(ethaddr)" to your kernel command line. e.g.:
mem=128M console=ttyS0,115200n8 ethaddr=$(ethaddr)
2. Apply this patch on linux kernel (approved on v2.6.31):
diff --git a/drivers/net/macb.c b/drivers/net/macb.c
index 92fe36d..cddf67a 100644
--- a/drivers/net/macb.c
+++ b/drivers/net/macb.c
@@ -14,6 +14,7 @@
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/slab.h>
+#include <linux/string.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
@@ -81,9 +82,14 @@ static void __init macb_get_hwaddr(struct macb *bp)
u32 bottom;
u16 top;
u8 addr[6];
+ char *ptr = NULL;
+ char *ptr_end;
+ char ethaddr[17];
+ int i;
bottom = macb_readl(bp, SA1B);
top = macb_readl(bp, SA1T);
+ ptr = strstr(boot_command_line, "ethaddr=");
addr[0] = bottom & 0xff;
addr[1] = (bottom >> 8) & 0xff;
@@ -94,6 +100,16 @@ static void __init macb_get_hwaddr(struct macb *bp)
if (is_valid_ether_addr(addr)) {
memcpy(bp->dev->dev_addr, addr, sizeof(addr));
+ } else if (ptr) {
+ memcpy(ethaddr, ptr + 8, 17 * sizeof(char));
+ printk(KERN_NOTICE "ethaddr parsed from commandline: %s\n",
ethaddr);
+ ptr_end = ethaddr;
+ for (i = 0; i <= 5; i++) {
+ addr[i] = simple_strtol(ptr_end, &ptr_end, 16) |
+ simple_strtol(ptr_end, &ptr_end, 16) <<
4;
+ ptr_end++; /* skip ":" in ethaddr */
+ }
+ memcpy(bp->dev->dev_addr, addr, sizeof(addr));
} else {
dev_info(&bp->pdev->dev, "invalid hw address, using random\n");
random_ether_addr(bp->dev->dev_addr);
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