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Diffstat (limited to 'packages/linux/gumstix-kernel-2.6.21/smc-ether-addr.patch')
-rw-r--r--packages/linux/gumstix-kernel-2.6.21/smc-ether-addr.patch62
1 files changed, 62 insertions, 0 deletions
diff --git a/packages/linux/gumstix-kernel-2.6.21/smc-ether-addr.patch b/packages/linux/gumstix-kernel-2.6.21/smc-ether-addr.patch
new file mode 100644
index 0000000000..b4957b7a0d
--- /dev/null
+++ b/packages/linux/gumstix-kernel-2.6.21/smc-ether-addr.patch
@@ -0,0 +1,62 @@
+Index: linux-2.6.21gum/drivers/net/smc91x.c
+===================================================================
+--- linux-2.6.21gum.orig/drivers/net/smc91x.c
++++ linux-2.6.21gum/drivers/net/smc91x.c
+@@ -1815,6 +1815,39 @@ static int __init smc_findirq(void __iom
+ return probe_irq_off(cookie);
+ }
+
++static inline unsigned int is_gumstix_oui(u8 *addr)
++{
++ return (addr[0] == 0x00 && addr[1] == 0x15 && addr[2] == 0xC9);
++}
++
++/**
++ * gen_serial_ether_addr - Generate software assigned Ethernet address
++ * based on the system_serial number
++ * @addr: Pointer to a six-byte array containing the Ethernet address
++ *
++ * Generate an Ethernet address (MAC) that is not multicast
++ * and has the local assigned bit set, keyed on the system_serial
++ */
++static inline void gen_serial_ether_addr(u8 *addr)
++{
++ static u8 ether_serial_digit = 0;
++ addr [0] = system_serial_high >> 8;
++ addr [1] = system_serial_high;
++ addr [2] = system_serial_low >> 24;
++ addr [3] = system_serial_low >> 16;
++ addr [4] = system_serial_low >> 8;
++ addr [5] = (system_serial_low & 0xc0) | /* top bits are from system serial */
++ (1 << 4) | /* 2 bits identify interface type 1=ether, 2=usb, 3&4 undef */
++ ((ether_serial_digit++) & 0x0f); /* 15 possible interfaces of each type */
++
++ if(!is_gumstix_oui(addr))
++ {
++ addr [0] &= 0xfe; /* clear multicast bit */
++ addr [0] |= 0x02; /* set local assignment bit (IEEE802) */
++ }
++}
++
++
+ /*
+ * Function: smc_probe(unsigned long ioaddr)
+ *
+@@ -2032,15 +2065,13 @@ static int __init smc_probe(struct net_d
+ THROTTLE_TX_PKTS ? " [throttle_tx]" : "");
+
+ if (!is_valid_ether_addr(dev->dev_addr)) {
+- printk("%s: Invalid ethernet MAC address. Please "
+- "set using ifconfig\n", dev->name);
+- } else {
++ gen_serial_ether_addr(dev->dev_addr);
++ }
+ /* Print the Ethernet address */
+ printk("%s: Ethernet addr: ", dev->name);
+ for (i = 0; i < 5; i++)
+ printk("%2.2x:", dev->dev_addr[i]);
+ printk("%2.2x\n", dev->dev_addr[5]);
+- }
+
+ if (lp->phy_type == 0) {
+ PRINTK("%s: No PHY found\n", dev->name);