[U-Boot] [PATCH v6 1/1] imx: Get fec mac address from fuse

[Jason Liu]

Hi, Stefano,

2010/11/18 Stefano Babic <sbabic at denx.de>:
> On 11/18/2010 12:49 PM, Jason Liu wrote:
>> The patch is to support getting FEC MAC address from fuse bank.
>>
>> Signed-off-by: Jason Liu <r64343 at freescale.com>
>>
>
> Hi Jason,
>
> I applied your patch and I tested on a i.MX27 Lite board. The result
> does not seem correct. According to the manual, the mac address is store
> at address 0x10028814. Rather there is no stored MAC at this address on
> my board, but your patch read the MAC from address 0x10028810 (I traced
> the address of fuse->mac_addr).
>
> The reported address is what we can see at 0x10028810 (Word 4 of
> fusebank 0):
>
> md 0x10028804
> 10028804: 00000020 00000081 00000040 00000010     ....... at .......
> 10028814: 00000000 00000000 00000000 00000000    ................
>
> And u-boot reports :
> Address in SROM is         00:00:00:00:00:10
> Address in environment is  00:aa:dd:cc:11:22
>
> It seems you read at a wrong address.

I think you are right. I did not have the mx27 board to do test.
Thanks for test.

I only test it on mx51babbage board, the following is the output:

Net:   got MAC address from fuse: 00:04:9f:00:f7:78
which is the same as the MAC address programmed on the board.

>
> Best regards,
> Stefano Babic
>
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