kernel/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
   8 int __init db1000_board_setup(void);
   9 int __init db1000_dev_setup(void);
  10 int __init db1500_pci_setup(void);
  11 int __init db1200_board_setup(void);
  12 int __init db1200_dev_setup(void);
  13 int __init db1300_board_setup(void);
  14 int __init db1300_dev_setup(void);
  15 int __init db1550_board_setup(void);
  16 int __init db1550_dev_setup(void);
  17 int __init db1550_pci_setup(int);
  18
  19 static 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
  50 const char *get_system_type(void)
  51 {
  52         return board_type_str();
  53 }
  54
  55 void __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
  82 static 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 }
  96 arch_initcall(db1xxx_arch_init);
  97
  98 static 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 }
 121 device_initcall(db1xxx_dev_init);