target/linux/ixp4xx/patches-2.6.24/300-avila_fetch_mac.patch

   1 Index: linux-2.6.24.2/arch/arm/mach-ixp4xx/avila-setup.c
   2 ===================================================================
   3 --- linux-2.6.24.2.orig/arch/arm/mach-ixp4xx/avila-setup.c
   4 +++ linux-2.6.24.2/arch/arm/mach-ixp4xx/avila-setup.c
   5 @@ -14,10 +14,18 @@
   6  #include <linux/kernel.h>
   7  #include <linux/init.h>
   8  #include <linux/device.h>
   9 +#include <linux/if_ether.h>
  10 +#include <linux/socket.h>
  11 +#include <linux/netdevice.h>
  12  #include <linux/serial.h>
  13  #include <linux/tty.h>
  14  #include <linux/serial_8250.h>
  15  #include <linux/slab.h>
  16 +#ifdef CONFIG_SENSORS_EEPROM
  17 +# include <linux/i2c.h>
  18 +# include <linux/eeprom.h>
  19 +#endif
  20 +
  21  #include <linux/i2c-gpio.h>
  22
  23  #include <asm/types.h>
  24 @@ -177,6 +185,118 @@ static struct platform_device *avila_eth
  25         &avila_eth[1]
  26  };
  27
  28 +#ifdef CONFIG_SENSORS_EEPROM
  29 +struct avila_board_info {
  30 +       unsigned char *model;
  31 +       int     npes_used;
  32 +       int     npeb_phy;
  33 +       int     npec_phy;
  34 +};
  35 +
  36 +static struct avila_board_info avila_boards[] = {
  37 +       {
  38 +               .model          = "GW2342",
  39 +               .npes_used      = 2,
  40 +               .npeb_phy       = 0,
  41 +               .npec_phy       = 1,
  42 +       }, {
  43 +               .model          = "GW2345",
  44 +               .npes_used      = 2,
  45 +               .npeb_phy       = 0,
  46 +               .npec_phy       = 1,
  47 +       }, {
  48 +               .model          = "GW2347",
  49 +               .npes_used      = 1,
  50 +               .npeb_phy       = 1,
  51 +       }, {
  52 +               .model          = "GW2348-2",
  53 +               .npes_used      = 2,
  54 +               .npeb_phy       = 0,
  55 +               .npec_phy       = 1,
  56 +       }, {
  57 +               .model          = "GW2348-4",
  58 +               .npes_used      = 2,
  59 +               .npeb_phy       = 0,
  60 +               .npec_phy       = 1,
  61 +       }, {
  62 +               .model          = "GW2353",
  63 +               .npes_used      = 1,
  64 +               .npeb_phy       = 1,
  65 +       }, {
  66 +               .model          = "GW2357",
  67 +               .npes_used      = 1,
  68 +               .npeb_phy       = 1,
  69 +       }
  70 +};
  71 +
  72 +static struct avila_board_info *avila_find_board_info(char *model)
  73 +{
  74 +       int i;
  75 +
  76 +       for (i = 0; i < ARRAY_SIZE(avila_boards); i++) {
  77 +               struct avila_board_info *info = &avila_boards[i];
  78 +               if (strncmp(info->model, model, strlen(info->model)) == 0)
  79 +                       return info;
  80 +       }
  81 +
  82 +       return NULL;
  83 +}
  84 +
  85 +struct avila_eeprom_header {
  86 +       unsigned char mac0[ETH_ALEN];
  87 +       unsigned char mac1[ETH_ALEN];
  88 +       unsigned char res0[4];
  89 +       unsigned char magic[2];
  90 +       unsigned char config[14];
  91 +       unsigned char model[16];
  92 +};
  93 +
  94 +static int avila_eeprom_notify(struct notifier_block *self,
  95 +                       unsigned long event, void *t)
  96 +{
  97 +       struct eeprom_data *ee = t;
  98 +       struct avila_board_info *info = NULL;
  99 +       struct avila_eeprom_header hdr;
 100 +
 101 +       /* The eeprom is at address 0x51 */
 102 +       if (event != EEPROM_REGISTER || ee->client.addr != 0x51)
 103 +               return NOTIFY_DONE;
 104 +
 105 +       ee->attr->read(&ee->client.dev.kobj, ee->attr, (char *)&hdr,
 106 +               0, sizeof(hdr));
 107 +
 108 +       if (hdr.magic[0] != 'G' || hdr.magic[1] != 'W')
 109 +               return NOTIFY_DONE;
 110 +
 111 +       memcpy(&avila_plat_eth[0].hwaddr, hdr.mac0, ETH_ALEN);
 112 +       memcpy(&avila_plat_eth[1].hwaddr, hdr.mac1, ETH_ALEN);
 113 +
 114 +       info = avila_find_board_info(hdr.model);
 115 +
 116 +       if (info) {
 117 +               printk(KERN_DEBUG "Running on Gateworks Avila %s\n",
 118 +                                                       info->model);
 119 +               avila_plat_eth[0].phy = info->npeb_phy;
 120 +               avila_plat_eth[1].phy = info->npec_phy;
 121 +               platform_add_devices(avila_eth_devices,
 122 +                       info->npes_used);
 123 +       } else {
 124 +               printk(KERN_INFO "Unknown/missing Avila model number"
 125 +                                       " -- defaults will be used\n");
 126 +               platform_add_devices(avila_eth_devices,
 127 +                       ARRAY_SIZE(avila_eth_devices));
 128 +       }
 129 +
 130 +       unregister_eeprom_notifier(self);
 131 +
 132 +       return NOTIFY_OK;
 133 +}
 134 +
 135 +static struct notifier_block avila_eeprom_notifier = {
 136 +       .notifier_call = avila_eeprom_notify
 137 +};
 138 +#endif
 139 +
 140  static void __init avila_init(void)
 141  {
 142         ixp4xx_sys_init();
 143 @@ -201,7 +321,11 @@ static void __init avila_init(void)
 144
 145         platform_device_register(&avila_pata);
 146
 147 +#ifdef CONFIG_SENSORS_EEPROM
 148 +       register_eeprom_notifier(&avila_eeprom_notifier);
 149 +#else
 150         platform_add_devices(avila_eth_devices, ARRAY_SIZE(avila_eth_devices));
 151 +#endif
 152  }
 153
 154  MACHINE_START(AVILA, "Gateworks Avila Network Platform")