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add loft support for setting the maclist from EEPROM
Signed-off-by: John Bowler <jbowler@acm.org>
--- linux-2.6.15/arch/arm/mach-ixp4xx/ixdp425-setup.c 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.15/arch/arm/mach-ixp4xx/ixdp425-setup.c 1970-01-01 00:00:00.000000000 +0000
@@ -14,6 +14,7 @@
#include <linux/serial.h>
#include <linux/tty.h>
#include <linux/serial_8250.h>
+#include <linux/eeprom.h>
#include <asm/types.h>
#include <asm/setup.h>
@@ -24,6 +25,8 @@
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
+#include <net/maclist.h>
+
static struct flash_platform_data ixdp425_flash_data = {
.map_name = "cfi_probe",
.width = 2,
@@ -188,9 +191,62 @@ MACHINE_END
/*
* Loft is functionally equivalent to Avila except that it has a
* different number for the maximum PCI devices. The MACHINE
- * structure below is identical to Avila except for the comment.
+ * structure below is identical to Avila except for the and
+ * the use of a loft specific init.
+ *
+ * The loft init registers a notifier on the on-board EEPROM to
+ * detect the MAC addresses.
+ * NOTE: this probably works for all Gateworks Avila boards and
+ * maybe the ixdp425 too.
*/
#ifdef CONFIG_MACH_LOFT
+/*
+ * When the EEPROM is added the MAC address are read from it.
+ */
+static void loft_eeprom_add(int address, int kind, struct kobject *kobj,
+ struct bin_attribute *eeprom_attr) {
+ /* The MACs are the first 12 bytes in the eeprom at address 0x51 */
+ if (address == 0x51) {
+ ssize_t retlen;
+ char data[12];
+
+ /* Two Macs, one at 0, the other at 6, maclist_add will
+ * complain if the ID is not a valid MAC.
+ */
+ retlen = eeprom_attr->read(kobj, data, 0, sizeof data);
+ if (retlen >= 6) {
+ u8 mac[6];
+ memcpy(mac, data+0, sizeof mac);
+ printk(KERN_INFO "LOFT MAC[0]: %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
+ mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+ maclist_add(mac);
+ }
+ if (retlen >= 12) {
+ u8 mac[6];
+ memcpy(mac, data+6, sizeof mac);
+ printk(KERN_INFO "LOFT MAC[1]: %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
+ mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+ maclist_add(mac);
+ }
+ }
+}
+
+static struct eeprom_notifier loft_eeprom_notifier = {
+ .add = loft_eeprom_add
+};
+
+static void __init loft_init(void)
+{
+ /* The EEPROM has two ethernet MACs embedded in it which we need,
+ * that is all this notifier does.
+ */
+ register_eeprom_user(&loft_eeprom_notifier);
+
+ ixp4xx_sys_init();
+
+ platform_add_devices(ixdp425_devices, ARRAY_SIZE(ixdp425_devices));
+}
+
MACHINE_START(LOFT, "Giant Shoulder Inc Loft board")
/* Maintainer: Tom Billman <kernel@giantshoulderinc.com> */
.phys_ram = PHYS_OFFSET,
@@ -200,7 +256,7 @@ MACHINE_START(LOFT, "Giant Shoulder Inc
.init_irq = ixp4xx_init_irq,
.timer = &ixp4xx_timer,
.boot_params = 0x0100,
- .init_machine = ixdp425_init,
+ .init_machine = loft_init,
MACHINE_END
#endif
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