1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
arch/arm/mach-ixp4xx/nas100d-setup.c | 64 +++++++++++++++++++++++++++++++++++
1 file changed, 64 insertions(+)
--- linux-ixp4xx.orig/arch/arm/mach-ixp4xx/nas100d-setup.c 2006-03-27 03:03:47.000000000 +0200
+++ linux-ixp4xx/arch/arm/mach-ixp4xx/nas100d-setup.c 2006-03-27 03:37:23.000000000 +0200
@@ -15,6 +15,9 @@
#include <linux/kernel.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>
+#include <linux/mtd/mtd.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -110,8 +113,69 @@ static void nas100d_power_off(void)
gpio_line_set(NAS100D_PO_GPIO, IXP4XX_GPIO_HIGH);
}
+/*
+ * When the RedBoot config partition is added the MAC address is read from
+ * it.
+ */
+static struct sockaddr mac;
+
+static void nas100d_flash_add(struct mtd_info *mtd) {
+ if (strcmp(mtd->name, "RedBoot config") == 0) {
+ size_t retlen;
+ int err;
+ /* the mac addr is at a known offset */
+ err = mtd->read(mtd, 0x0FD8, 6, &retlen, (u8 *) &mac.sa_data);
+ if (err != 0 || retlen != 6)
+ printk(KERN_ERR "nas100d: mac addr read failed\n");
+ else
+ printk(KERN_INFO
+ "nas100d: mac %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
+ mac.sa_data[0], mac.sa_data[1], mac.sa_data[2],
+ mac.sa_data[3], mac.sa_data[4], mac.sa_data[5]);
+ }
+}
+
+/*
+ * Nothing to do on remove at present.
+ */
+static void nas100d_flash_remove(struct mtd_info *mtd) {
+}
+
+static struct mtd_notifier nas100d_flash_notifier = {
+ .add = nas100d_flash_add,
+ .remove = nas100d_flash_remove,
+};
+
+static int nas100d_netdev_event(struct notifier_block *this,
+ unsigned long event, void *ptr)
+{
+ struct net_device *dev = ptr;
+
+ /* identify the ixp4xx eth, port 1 */
+ if (dev->dev_addr[1] != 0x02 || dev->dev_addr[2] != 0xB3
+ || dev->dev_addr[5] != 0x01)
+ return NOTIFY_DONE;
+
+ if (event == NETDEV_REGISTER && is_valid_ether_addr(mac.sa_data)) {
+ mac.sa_family = dev->type;
+ dev_set_mac_address(dev, &mac);
+ }
+
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block nas100d_netdev_notifier = {
+ .notifier_call = nas100d_netdev_event,
+};
+
static void __init nas100d_init(void)
{
+ /* The flash has an ethernet MAC embedded in it which we need,
+ * that is all this notifier does.
+ */
+ register_mtd_user(&nas100d_flash_notifier);
+ register_netdevice_notifier(&nas100d_netdev_notifier);
+
ixp4xx_sys_init();
/* gpio 14 and 15 are _not_ clocks */
|
