xtensa: set the correct ethernet address for xtfpga
The last byte of the mac address is determined by a DIP switch, so
update the OF property with that address.
Signed-off-by: Chris Zankel <chris@zankel.net>
diff --git a/arch/xtensa/platforms/xtfpga/setup.c b/arch/xtensa/platforms/xtfpga/setup.c
index 237c36d..4b9951a 100644
--- a/arch/xtensa/platforms/xtfpga/setup.c
+++ b/arch/xtensa/platforms/xtfpga/setup.c
@@ -32,6 +32,7 @@
#include <asm/platform.h>
#include <asm/bootparam.h>
#include <platform/lcd.h>
+#include <platform/hardware.h>
void platform_halt(void)
{
@@ -84,8 +85,7 @@
struct property *newfreq;
u32 freq;
- if (!of_property_read_u32(node, "clock-frequency", &freq) &&
- freq != 0)
+ if (!of_property_read_u32(node, "clock-frequency", &freq) && freq != 0)
return;
newfreq = kzalloc(sizeof(*newfreq) + sizeof(u32), GFP_KERNEL);
@@ -103,12 +103,44 @@
prom_update_property(node, newfreq);
}
+#define MAC_LEN 6
+static void __init update_local_mac(struct device_node *node)
+{
+ struct property *newmac;
+ const u8* macaddr;
+ int prop_len;
+
+ macaddr = of_get_property(node, "local-mac-address", &prop_len);
+ if (macaddr == NULL || prop_len != MAC_LEN)
+ return;
+
+ newmac = kzalloc(sizeof(*newmac) + MAC_LEN, GFP_KERNEL);
+ if (newmac == NULL)
+ return;
+
+ newmac->value = newmac + 1;
+ newmac->length = MAC_LEN;
+ newmac->name = kstrdup("local-mac-address", GFP_KERNEL);
+ if (newmac->name == NULL) {
+ kfree(newmac);
+ return;
+ }
+
+ memcpy(newmac->value, macaddr, MAC_LEN);
+ ((u8*)newmac->value)[5] = (*(u32*)DIP_SWITCHES_VADDR) & 0x3f;
+ prom_update_property(node, newmac);
+}
+
static int __init machine_setup(void)
{
struct device_node *serial;
+ struct device_node *eth = NULL;
for_each_compatible_node(serial, NULL, "ns16550a")
update_clock_frequency(serial);
+
+ if ((eth = of_find_compatible_node(eth, NULL, "opencores,ethoc")))
+ update_local_mac(eth);
return 0;
}
arch_initcall(machine_setup);