diff options
Diffstat (limited to 'recipes/linux/linux-gumstix-2.6.15/serial-ether-addr.patch')
| -rw-r--r-- | recipes/linux/linux-gumstix-2.6.15/serial-ether-addr.patch | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/recipes/linux/linux-gumstix-2.6.15/serial-ether-addr.patch b/recipes/linux/linux-gumstix-2.6.15/serial-ether-addr.patch new file mode 100644 index 0000000000..88442655e4 --- /dev/null +++ b/recipes/linux/linux-gumstix-2.6.15/serial-ether-addr.patch @@ -0,0 +1,46 @@ +Index: linux-2.6.15gum/drivers/usb/gadget/ether.c +=================================================================== +--- linux-2.6.15gum.orig/drivers/usb/gadget/ether.c ++++ linux-2.6.15gum/drivers/usb/gadget/ether.c +@@ -2153,6 +2153,29 @@ static u8 __init nibble (unsigned char c + return 0; + } + ++/** ++ * 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 = 1; ++ 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 */ ++ (2 << 4) | /* 2 bits identify interface type 1=ether, 2=usb, 3&4 undef */ ++ ((ether_serial_digit++) & 0x0f); /* 15 possible interfaces of each type */ ++ addr [0] &= 0xfe; /* clear multicast bit */ ++ addr [0] |= 0x02; /* set local assignment bit (IEEE802) */ ++} ++ + static void __init get_ether_addr (const char *str, u8 *dev_addr) + { + if (str) { +@@ -2170,7 +2193,10 @@ static void __init get_ether_addr (const + if (is_valid_ether_addr (dev_addr)) + return; + } +- random_ether_addr(dev_addr); ++ if(system_serial_high | system_serial_low) ++ gen_serial_ether_addr(dev_addr); ++ else ++ random_ether_addr(dev_addr); + } + + static int __init |