arch/mips/alchemy/devboards/db1xxx.c

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