target/linux/brcm63xx/patches-3.9/038-MIPS-BCM63XX-provide-a-MAC-address-for-BCM3368-chips.patch

   1 From 404fdc457082772ff52e22988e09e82c0d6e8780 Mon Sep 17 00:00:00 2001
   2 From: Florian Fainelli <florian@openwrt.org>
   3 Date: Tue, 18 Jun 2013 16:55:42 +0000
   4 Subject: [PATCH 4/6] MIPS: BCM63XX: provide a MAC address for BCM3368 chips
   5
   6 The BCM3368 SoC uses a NVRAM format which is not compatible with the one
   7 used by CFE, provide a default MAC address which is suitable for use and
   8 which is the default one also being used by the bootloader on these
   9 chips.
  10
  11 Signed-off-by: Florian Fainelli <florian@openwrt.org>
  12 Cc: linux-mips@linux-mips.org
  13 Cc: cernekee@gmail.com
  14 Cc: jogo@openwrt.org
  15 Patchwork: https://patchwork.linux-mips.org/patch/5498/
  16 Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
  17 ---
  18  arch/mips/bcm63xx/nvram.c |   10 ++++++++++
  19  1 file changed, 10 insertions(+)
  20
  21 --- a/arch/mips/bcm63xx/nvram.c
  22 +++ b/arch/mips/bcm63xx/nvram.c
  23 @@ -45,6 +45,7 @@ void __init bcm63xx_nvram_init(void *add
  24  {
  25         unsigned int check_len;
  26         u32 crc, expected_crc;
  27 +       u8 hcs_mac_addr[ETH_ALEN] = { 0x00, 0x10, 0x18, 0xff, 0xff, 0xff };
  28
  29         /* extract nvram data */
  30         memcpy(&nvram, addr, sizeof(nvram));
  31 @@ -65,6 +66,15 @@ void __init bcm63xx_nvram_init(void *add
  32         if (crc != expected_crc)
  33                 pr_warn("nvram checksum failed, contents may be invalid (expected %08x, got %08x)\n",
  34                         expected_crc, crc);
  35 +
  36 +       /* Cable modems have a different NVRAM which is embedded in the eCos
  37 +        * firmware and not easily extractible, give at least a MAC address
  38 +        * pool.
  39 +        */
  40 +       if (BCMCPU_IS_3368()) {
  41 +               memcpy(nvram.mac_addr_base, hcs_mac_addr, ETH_ALEN);
  42 +               nvram.mac_addr_count = 2;
  43 +       }
  44  }
  45
  46  u8 *bcm63xx_nvram_get_name(void)