LXR linux/arch/mips/alchemy/devboards/db1xxx.c

   1/*
   2 * Alchemy DB/PB1xxx board support.
   3 */
   4
   5#include <asm/mach-au1x00/au1000.h>
   6#include <asm/mach-db1x00/bcsr.h>
   7
   8int __init db1000_board_setup(void);
   9int __init db1000_dev_setup(void);
  10int __init db1500_pci_setup(void);
  11int __init db1200_board_setup(void);
  12int __init db1200_dev_setup(void);
  13int __init db1300_board_setup(void);
  14int __init db1300_dev_setup(void);
  15int __init db1550_board_setup(void);
  16int __init db1550_dev_setup(void);
  17int __init db1550_pci_setup(int);
  18
  19static const char *board_type_str(void)
  20{
  21        switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
  22        case BCSR_WHOAMI_DB1000:
  23                return "DB1000";
  24        case BCSR_WHOAMI_DB1500:
  25                return "DB1500";
  26        case BCSR_WHOAMI_DB1100:
  27                return "DB1100";
  28        case BCSR_WHOAMI_PB1500:
  29        case BCSR_WHOAMI_PB1500R2:
  30                return "PB1500";
  31        case BCSR_WHOAMI_PB1100:
  32                return "PB1100";
  33        case BCSR_WHOAMI_PB1200_DDR1:
  34        case BCSR_WHOAMI_PB1200_DDR2:
  35                return "PB1200";
  36        case BCSR_WHOAMI_DB1200:
  37                return "DB1200";
  38        case BCSR_WHOAMI_DB1300:
  39                return "DB1300";
  40        case BCSR_WHOAMI_DB1550:
  41                return "DB1550";
  42        case BCSR_WHOAMI_PB1550_SDR:
  43        case BCSR_WHOAMI_PB1550_DDR:
  44                return "PB1550";
  45        default:
  46                return "(unknown)";
  47        }
  48}
  49
  50const char *get_system_type(void)
  51{
  52        return board_type_str();
  53}
  54
  55void __init board_setup(void)
  56{
  57        int ret;
  58
  59        switch (alchemy_get_cputype()) {
  60        case ALCHEMY_CPU_AU1000:
  61        case ALCHEMY_CPU_AU1500:
  62        case ALCHEMY_CPU_AU1100:
  63                ret = db1000_board_setup();
  64                break;
  65        case ALCHEMY_CPU_AU1550:
  66                ret = db1550_board_setup();
  67                break;
  68        case ALCHEMY_CPU_AU1200:
  69                ret = db1200_board_setup();
  70                break;
  71        case ALCHEMY_CPU_AU1300:
  72                ret = db1300_board_setup();
  73                break;
  74        default:
  75                pr_err("unsupported CPU on board\n");
  76                ret = -ENODEV;
  77        }
  78        if (ret)
  79                panic("cannot initialize board support");
  80}
  81
  82static int __init db1xxx_arch_init(void)
  83{
  84        int id = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
  85        if (id == BCSR_WHOAMI_DB1550)
  86                return db1550_pci_setup(0);
  87        else if ((id == BCSR_WHOAMI_PB1550_SDR) ||
  88                 (id == BCSR_WHOAMI_PB1550_DDR))
  89                return db1550_pci_setup(1);
  90        else if ((id == BCSR_WHOAMI_DB1500) || (id == BCSR_WHOAMI_PB1500) ||
  91                 (id == BCSR_WHOAMI_PB1500R2))
  92                return db1500_pci_setup();
  93
  94        return 0;
  95}
  96arch_initcall(db1xxx_arch_init);
  97
  98static int __init db1xxx_dev_init(void)
  99{
 100        switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
 101        case BCSR_WHOAMI_DB1000:
 102        case BCSR_WHOAMI_DB1500:
 103        case BCSR_WHOAMI_DB1100:
 104        case BCSR_WHOAMI_PB1500:
 105        case BCSR_WHOAMI_PB1500R2:
 106        case BCSR_WHOAMI_PB1100:
 107                return db1000_dev_setup();
 108        case BCSR_WHOAMI_PB1200_DDR1:
 109        case BCSR_WHOAMI_PB1200_DDR2:
 110        case BCSR_WHOAMI_DB1200:
 111                return db1200_dev_setup();
 112        case BCSR_WHOAMI_DB1300:
 113                return db1300_dev_setup();
 114        case BCSR_WHOAMI_DB1550:
 115        case BCSR_WHOAMI_PB1550_SDR:
 116        case BCSR_WHOAMI_PB1550_DDR:
 117                return db1550_dev_setup();
 118        }
 119        return 0;
 120}
 121device_initcall(db1xxx_dev_init);
 122