Fixes the MAC address handling on avila NPE on startup

Replaces/based-on 740-avila_loft_mac_platform.patch for 2.6.21

Signed-off-by: Harald Schioeberg <pagefault@c-base.org>



git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10114 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/ixp4xx/patches-2.6.23/300-avila_fetch_mac.patch

+diff -r -u linux-2.6.23.12/arch/arm/mach-ixp4xx/avila-setup.c ../../../../trunk/build_dir/linux-ixp4xx_generic/linux-2.6.23.12/arch/arm/mach-ixp4xx/avila-setup.c
+--- linux-2.6.23.12/arch/arm/mach-ixp4xx/avila-setup.c	2008-01-04 01:28:24.134925761 +0100
++++ ../../../../trunk/build_dir/linux-ixp4xx_generic/linux-2.6.23.12/arch/arm/mach-ixp4xx/avila-setup.c	2008-01-04 01:23:27.874042817 +0100
+@@ -14,10 +14,18 @@
+ #include <linux/kernel.h>
+ #include <linux/init.h>
+ #include <linux/device.h>
++#include <linux/if_ether.h>
++#include <linux/socket.h>
++#include <linux/netdevice.h>
+ #include <linux/serial.h>
+ #include <linux/tty.h>
+ #include <linux/serial_8250.h>
+ #include <linux/slab.h>
++#ifdef CONFIG_SENSORS_EEPROM
++# include <linux/i2c.h>
++# include <linux/eeprom.h>
++#endif
++
+ #include <linux/i2c-gpio.h>
+ 
+ #include <asm/types.h>
+@@ -194,9 +202,48 @@
+     t->hdr.size = 0;
+ }
+ 
++#ifdef CONFIG_SENSORS_EEPROM
++static int loft_eeprom_do(struct notifier_block *self, unsigned long event, void *t)
++{
++       struct eeprom_data *data = t;
++       struct sockaddr address;
++       struct net_device * netdev ;
++
++       char macs[12];
++
++       /* The MACs are the first 12 bytes in the eeprom at address 0x51 */
++       if (event == EEPROM_REGISTER && data->client.addr == 0x51) {
++               data->attr->read(&data->client.dev.kobj, data->attr, macs, 0, 12);
++		/*eth0*/
++		/* using dev_get_by_name here is really ugly and can cause
++ 		* confusion if other ethernet devices are present. FIXME */
++		
++		memcpy(address.sa_data, macs, ETH_ALEN);
++               	memcpy(&avila_plat_eth[0].hwaddr, macs, ETH_ALEN);
++		if ( (netdev = dev_get_by_name("eth0")) )
++			netdev->set_mac_address(netdev, &address);
++
++                /*same for eth1*/
++	 	memcpy(address.sa_data, macs + ETH_ALEN, ETH_ALEN);
++	       memcpy(&avila_plat_eth[1].hwaddr, macs + ETH_ALEN, ETH_ALEN);
++		if ( (netdev = dev_get_by_name("eth1")) )
++			netdev->set_mac_address(netdev, &address);
++       }
++
++       return NOTIFY_DONE;
++}
++
++static struct notifier_block loft_eeprom_notifier = {
++       .notifier_call = loft_eeprom_do
++};
++#endif
++
+ static void __init avila_init(void)
+ {
+ 	ixp4xx_sys_init();
++#ifdef CONFIG_SENSORS_EEPROM
++       register_eeprom_notifier(&loft_eeprom_notifier);
++#endif
+ 
+ 	avila_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
+ 	avila_flash_resource.end =
+