board/fads/pcmcia.c

   1 #include <common.h>
   2 #include <mpc8xx.h>
   3 #include <pcmcia.h>
   4
   5 #undef  CONFIG_PCMCIA
   6
   7 #if defined(CONFIG_CMD_PCMCIA)
   8 #define CONFIG_PCMCIA
   9 #endif
  10
  11 #if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD)
  12 #define CONFIG_PCMCIA
  13 #endif
  14
  15 #ifdef  CONFIG_PCMCIA
  16
  17 #ifdef  CONFIG_ADS
  18 #define PCMCIA_BOARD_MSG "ADS"
  19 #else
  20 #define PCMCIA_BOARD_MSG "FADS"
  21 #endif
  22
  23 int pcmcia_voltage_set(int slot, int vcc, int vpp)
  24 {
  25         u_long reg = 0;
  26
  27         switch(vpp) {
  28                 case 0: reg = 0; break;
  29                 case 50: reg = 1; break;
  30                 case 120: reg = 2; break;
  31                 default: return 1;
  32         }
  33
  34         switch(vcc) {
  35                 case 0: reg = 0; break;
  36 #ifdef CONFIG_ADS
  37         case 50: reg = BCSR1_PCCVCCON; break;
  38 #endif
  39 #ifdef CONFIG_FADS
  40         case 33: reg = BCSR1_PCCVCC0 | BCSR1_PCCVCC1; break;
  41         case 50: reg = BCSR1_PCCVCC1; break;
  42 #endif
  43         default: return 1;
  44         }
  45
  46         /* first, turn off all power */
  47
  48 #ifdef CONFIG_ADS
  49         *((uint *)BCSR1) |= BCSR1_PCCVCCON;
  50 #endif
  51 #ifdef CONFIG_FADS
  52         *((uint *)BCSR1) &= ~(BCSR1_PCCVCC0 | BCSR1_PCCVCC1);
  53 #endif
  54         *((uint *)BCSR1) &= ~BCSR1_PCCVPP_MASK;
  55
  56         /* enable new powersettings */
  57
  58 #ifdef CONFIG_ADS
  59         *((uint *)BCSR1) &= ~reg;
  60 #endif
  61 #ifdef CONFIG_FADS
  62         *((uint *)BCSR1) |= reg;
  63 #endif
  64
  65         *((uint *)BCSR1) |= reg << 20;
  66
  67         return 0;
  68 }
  69
  70 int pcmcia_hardware_enable(int slot)
  71 {
  72         *((uint *)BCSR1) &= ~BCSR1_PCCEN;
  73         return 0;
  74 }
  75
  76 #if defined(CONFIG_CMD_PCMCIA)
  77 int pcmcia_hardware_disable(int slot)
  78 {
  79         *((uint *)BCSR1) &= ~BCSR1_PCCEN;
  80         return 0;
  81 }
  82 #endif
  83
  84 #endif  /* CONFIG_PCMCIA */