davinci: Factor out emac mac address handling

Factor out the code to extract that mac address from
i2c eeprom.

Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/arch/arm/mach-davinci/common.c b/arch/arm/mach-davinci/common.c
index d72d517d090c..169ec73f8d76 100644
--- a/arch/arm/mach-davinci/common.c
+++ b/arch/arm/mach-davinci/common.c
@@ -10,12 +10,14 @@
  */
 #include <linux/module.h>
 #include <linux/io.h>
+#include <linux/etherdevice.h>
 
 #include <asm/tlb.h>
 #include <asm/mach/map.h>
 
 #include <mach/common.h>
 #include <mach/cputype.h>
+#include <mach/emac.h>
 
 #include "clock.h"
 
@@ -24,6 +26,16 @@ EXPORT_SYMBOL(davinci_soc_info);
 
 void __iomem *davinci_intc_base;
 
+void davinci_get_mac_addr(struct memory_accessor *mem_acc, void *context)
+{
+        char *mac_addr = davinci_soc_info.emac_pdata->mac_addr;
+        off_t offset = (off_t)context;
+
+        /* Read MAC addr from EEPROM */
+        if (mem_acc->read(mem_acc, mac_addr, offset, ETH_ALEN) == ETH_ALEN)
+                pr_info("Read MAC addr from EEPROM: %pM\n", mac_addr);
+}
+
 static struct davinci_id * __init davinci_get_id(u32 jtag_id)
 {
         int i;