diff options
| author | John Rigby <john.rigby@linaro.org> | 2011-07-24 23:24:26 -0600 |
|---|---|---|
| committer | John Rigby <john.rigby@linaro.org> | 2011-09-23 07:10:41 -0600 |
| commit | ebd0bcde9a07290588947c23b028b0d61f891c40 (patch) | |
| tree | 097705c9fd6a2e203be95471ce9d17d14a45a6fb /board/ti/panda/panda.c | |
| parent | 56bfeb78692fcea766f1296d977a6bec22fcfc82 (diff) | |
OMAP4 Panda: Generate a unique usbethaddr
The panda board has a usb nic but the nic has no
rom. Use the die-id to generate a unique address.
This is derived from an RFC kernel patch by Andy Green
that does the same thing:
https://patchwork.kernel.org/patch/660541/
[RFC PATCH 1/2] OMAP2+: add cpu id register to MAC address helper
Signed-off-by: John Rigby <john.rigby@linaro.org>
Diffstat (limited to 'board/ti/panda/panda.c')
| -rw-r--r-- | board/ti/panda/panda.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/board/ti/panda/panda.c b/board/ti/panda/panda.c index e60a2e267..5fe01b176 100644 --- a/board/ti/panda/panda.c +++ b/board/ti/panda/panda.c @@ -48,8 +48,26 @@ int board_init(void) return 0; } +/* + * Panda has a usb nic with no ethernet rom so generate a macaddr + * from the SOC die-id and set the usbethaddr env var to that + * value. + */ int board_eth_init(bd_t *bis) { + u8 macaddr[6]; + char usbethaddr[20]; + + /* + * NB: The 1 here has been found to generate an address + * consistent with the kernel. + */ + omap4_die_id_to_ethernet_mac(macaddr, 1); + sprintf (usbethaddr, "%02X:%02X:%02X:%02X:%02X:%02X", + macaddr[0], macaddr[1], + macaddr[2], macaddr[3], + macaddr[4], macaddr[5]) ; + setenv ("usbethaddr", usbethaddr); return 0; } |