target/linux/adm5120/files/arch/mips/adm5120/motorola/pmugw.c

   1 /*
   2  *  Motorola Powerline MU Gateway board
   3  *
   4  *  Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify it
   7  *  under the terms of the GNU General Public License version 2 as published
   8  *  by the Free Software Foundation.
   9  *
  10  */
  11
  12 #include <linux/kernel.h>
  13 #include <linux/init.h>
  14 #include <linux/gpio.h>
  15 #include <linux/irq.h>
  16 #include <linux/etherdevice.h>
  17
  18 #include <asm/mips_machine.h>
  19
  20 #include <asm/mach-adm5120/adm5120_defs.h>
  21 #include <asm/mach-adm5120/adm5120_platform.h>
  22 #include <asm/mach-adm5120/adm5120_info.h>
  23
  24 #include <prom/admboot.h>
  25
  26 #define PMUGW_CONFIG_OFFSET     0x10000
  27 #define PMUGW_CONFIG_SIZE       0x1000
  28
  29 #ifdef CONFIG_MTD_PARTITIONS
  30 static struct mtd_partition pmugw_partitions[] = {
  31         {
  32                 .name   = "admboot",
  33                 .offset = 0,
  34                 .size   = 64*1024,
  35                 .mask_flags = MTD_WRITEABLE,
  36         } , {
  37                 .name   = "boardcfg",
  38                 .offset = MTDPART_OFS_APPEND,
  39                 .size   = 64*1024,
  40         } , {
  41                 .name   = "firmware",
  42                 .offset = MTDPART_OFS_APPEND,
  43                 .size   = MTDPART_SIZ_FULL,
  44         }
  45 };
  46 #endif /* CONFIG_MTD_PARTITIONS */
  47
  48 static u8 pmugw_vlans[6] __initdata = {
  49         0x41, 0x42, 0x44, 0x48, 0x50, 0x00
  50 };
  51
  52 static __init void pmugw_setup_mac(void)
  53 {
  54         u8 mac_base[6];
  55         int err;
  56
  57         err = admboot_get_mac_base(PMUGW_CONFIG_OFFSET,
  58                                    PMUGW_CONFIG_SIZE, mac_base);
  59
  60         if ((err) || !is_valid_ether_addr(mac_base))
  61                 random_ether_addr(mac_base);
  62
  63         adm5120_setup_eth_macs(mac_base);
  64 }
  65
  66 static void switch_bank_gpio5(unsigned bank)
  67 {
  68         switch (bank) {
  69         case 0:
  70                 gpio_set_value(ADM5120_GPIO_PIN5, 0);
  71                 break;
  72         case 1:
  73                 gpio_set_value(ADM5120_GPIO_PIN5, 1);
  74                 break;
  75         }
  76 }
  77
  78 void __init pmugw_setup(void)
  79 {
  80         /* setup flash A20 line */
  81         gpio_request(ADM5120_GPIO_PIN5, NULL);
  82         gpio_direction_output(ADM5120_GPIO_PIN5, 0);
  83         adm5120_flash0_data.switch_bank = switch_bank_gpio5;
  84
  85 #ifdef CONFIG_MTD_PARTITIONS
  86         adm5120_flash0_data.nr_parts = ARRAY_SIZE(pmugw_partitions);
  87         adm5120_flash0_data.parts = pmugw_partitions;
  88 #endif /* CONFIG_MTD_PARTITIONS */
  89
  90         adm5120_add_device_uart(1); /* ttyS0 */
  91         adm5120_add_device_uart(0); /* ttyS1 */
  92
  93         adm5120_add_device_flash(0);
  94
  95         pmugw_setup_mac();
  96         adm5120_add_device_switch(5, pmugw_vlans);
  97 }
  98
  99 MIPS_MACHINE(MACH_ADM5120_PMUGW,
 100                 "Motorola Powerline MU Gateway",
 101                 pmugw_setup);