Add support for reading and writing mac addresses to or from ID EEPROM.
Added code for reading and writing Mac addresses to/from ID EEPROM(0x57).
With attached patch, we can use command "mac/mac read/mac save/"
to read and write EEPROM under u-boot prompt.
U-boot will calculate the checksum of EEPROM while bootup,
if it is right, then u-boot will check whether the mac address
of eTSEC0/1/2/3 is availalbe (non-zero).
If there is mac address availabe in EEPROM, u-boot will use it,
otherewise, u-boot will use the mac address defined in
MPC8641HPCN.h. This matches the requirement to set unique mac address
for each TSEC port.
Signed-off-by: Haiying Wang <haiying.wang@freescale.com>
Signed-off-by: York Sun <yorksun@freescale.com>
diff --git a/include/common.h b/include/common.h
index 83ccf7c..7e54da9 100644
--- a/include/common.h
+++ b/include/common.h
@@ -197,6 +197,9 @@
char * strmhz(char *buf, long hz);
int last_stage_init(void);
extern ulong monitor_flash_len;
+#ifdef CFG_ID_EEPROM
+int mac_read_from_eeprom(void);
+#endif
/* common/flash.c */
void flash_perror (int);
