Hi All,
I have L2.6.38_11.09_01 (Kernel IMX-2.6.38) running on i.MX53 ARD (Sabre) board. I find an issue here is though I can set HW Mac address from u-boot bootloader, I see the following issue :
-----------8<-----------------------
Err: serial
Net: smc911x-0
Warning: smc911x-0 MAC addresses don't match:
Address in SROM is 16:3b:ba:2a:17:e9
Address in environment is 52:b0:dc:8f:16:a0
------------8<-----------------------
While kernel boot-up I can see that again some other random mac address is generated :
---------------------------------------
vcan: Virtual CAN interface driver
smsc911x: Driver version 2008-10-21.
smsc911x-mdio: probed
eth0: attached PHY driver [SMSC LAN8700] (mii_bus:phy_addr=0:01, irq=-1)
net eth0: MAC Address: d2:2e:49:0e:05:2e
....
....
freescale-sabre login: root
root@freescale-sabre:~# ifconfig
eth0 Link encap:Ethernet HWaddr D2:2E:49:0E:05:2E
inet addr:10.162.100.156 Bcast:10.162.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:12480 errors:0 dropped:0 overruns:0 frame:0
TX packets:3768 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:14165206 (13.5 MiB) TX bytes:868204 (847.8 KiB)
Interrupt:191
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:30 errors:0 dropped:0 overruns:0 frame:0
TX packets:30 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2112 (2.0 KiB) TX bytes:2112 (2.0 KiB)
root@freescale-qsb:~#
Linux freescale-sabre 2.6.38.8-dirty #5 PREEMPT Mon Jan 9 19:15:47 IST 2012 armv7l GNU/Linux
---------------------------------------
I have added the SMSC911X_SAVE_MAC_ADDRESS flag to SMSC911x config options in file :
arch/arm/mach-mx5/board-mx53_ard.c
- .flags = SMSC911X_USE_32BIT,
+ .flags = (SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS),
Is this an intentional setup or am I missing something in the source code of the BSP ? I have the following bootloader version in the target board :
------------------------------------------------------------------------
U-Boot 2009.08 (Jun 04 2011 - 19:31:38)
CPU: Freescale i.MX53 family 2.0V at 800 MHz
mx53 pll1: 800MHz
mx53 pll2: 400MHz
mx53 pll3: 216MHz
mx53 pll4: 455MHz
ipg clock : 66666666Hz
ipg per clock : 33333333Hz
uart clock : 66666666Hz
cspi clock : 54000000Hz
ahb clock : 133333333Hz
axi_a clock : 400000000Hz
axi_b clock : 200000000Hz
emi_slow clock: 133333333Hz
ddr clock : 400000000Hz
esdhc1 clock : 80000000Hz
esdhc2 clock : 80000000Hz
esdhc3 clock : 80000000Hz
esdhc4 clock : 80000000Hz
nfc clock : 33333333Hz
Board: MX53-ARD Rev. B
Boot Reason: [POR]
Boot Device: SD
I2C: ready
DRAM: 1 GB
NAND: No NAND device found!!!
0 MiB
MMC: FSL_ESDHC: 0, FSL_ESDHC: 1
In: serial
Out: serial
Err: serial
Net: smc911x-0
Warning: smc911x-0 MAC addresses don't match:
Address in SROM is aa:eb:74:84:cf:c6
Address in environment is 52:b0:dc:8f:16:a0
Hit any key to stop autoboot: 0
------------------------------------------------------------------------
Is there any kernel patch that fetches u-boot environment Mac address while boot up or restores Mac address between soft reboots ?
Appreciate your responses.
Thanks in Advance !
Regards,
Srikanth
