drivers/pcmcia/rpx_pcmcia.c

   1 /* -------------------------------------------------------------------- */
   2 /* RPX Boards from Embedded Planet                                      */
   3 /* -------------------------------------------------------------------- */
   4 #include <common.h>
   5 #ifdef CONFIG_8xx
   6 #include <mpc8xx.h>
   7 #endif
   8 #include <pcmcia.h>
   9
  10 #undef  CONFIG_PCMCIA
  11
  12 #if defined(CONFIG_CMD_PCMCIA)
  13 #define CONFIG_PCMCIA
  14 #endif
  15
  16 #if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD)
  17 #define CONFIG_PCMCIA
  18 #endif
  19
  20 #if     defined(CONFIG_PCMCIA)  \
  21         && defined(CONFIG_RPXLITE)
  22
  23 #define PCMCIA_BOARD_MSG        "RPX CLASSIC or RPX LITE"
  24
  25 int pcmcia_voltage_set(int slot, int vcc, int vpp)
  26 {
  27         u_long reg = 0;
  28
  29         switch(vcc) {
  30                 case 0: break;
  31                 case 33: reg |= BCSR1_PCVCTL4; break;
  32                 case 50: reg |= BCSR1_PCVCTL5; break;
  33                 default: return 1;
  34         }
  35
  36         switch(vpp) {
  37                 case 0: break;
  38                 case 33:
  39                 case 50:
  40                         if(vcc == vpp)
  41                                 reg |= BCSR1_PCVCTL6;
  42                         else
  43                                 return 1;
  44                         break;
  45                 case 120:
  46                         reg |= BCSR1_PCVCTL7;
  47                         default: return 1;
  48         }
  49
  50         /* first, turn off all power */
  51         *((uint *)RPX_CSR_ADDR) &= ~(BCSR1_PCVCTL4 | BCSR1_PCVCTL5
  52                         | BCSR1_PCVCTL6 | BCSR1_PCVCTL7);
  53
  54         /* enable new powersettings */
  55         *((uint *)RPX_CSR_ADDR) |= reg;
  56
  57         return 0;
  58 }
  59
  60 int pcmcia_hardware_enable (int slot)
  61 {
  62         return 0;       /* No hardware to enable */
  63 }
  64
  65 #if defined(CONFIG_CMD_PCMCIA)
  66 static int pcmcia_hardware_disable(int slot)
  67 {
  68         return 0;       /* No hardware to disable */
  69 }
  70 #endif
  71
  72
  73 #endif  /* CONFIG_PCMCIA && CONFIG_RPXLITE */