arch/sh/include/mach-se/mach/mrshpc.h

   1 #ifndef __MACH_SE_MRSHPC_H
   2 #define __MACH_SE_MRSHPC_H
   3
   4 #include <linux/io.h>
   5
   6 static inline void __init mrshpc_setup_windows(void)
   7 {
   8         if ((__raw_readw(MRSHPC_CSR) & 0x000c) != 0)
   9                 return; /* Not detected */
  10
  11         if ((__raw_readw(MRSHPC_CSR) & 0x0080) == 0) {
  12                 __raw_writew(0x0674, MRSHPC_CPWCR); /* Card Vcc is 3.3v? */
  13         } else {
  14                 __raw_writew(0x0678, MRSHPC_CPWCR); /* Card Vcc is 5V */
  15         }
  16
  17         /*
  18          *  PC-Card window open
  19          *  flag == COMMON/ATTRIBUTE/IO
  20          */
  21         /* common window open */
  22         __raw_writew(0x8a84, MRSHPC_MW0CR1);
  23         if((__raw_readw(MRSHPC_CSR) & 0x4000) != 0)
  24                 /* common mode & bus width 16bit SWAP = 1*/
  25                 __raw_writew(0x0b00, MRSHPC_MW0CR2);
  26         else
  27                 /* common mode & bus width 16bit SWAP = 0*/
  28                 __raw_writew(0x0300, MRSHPC_MW0CR2);
  29
  30         /* attribute window open */
  31         __raw_writew(0x8a85, MRSHPC_MW1CR1);
  32         if ((__raw_readw(MRSHPC_CSR) & 0x4000) != 0)
  33                 /* attribute mode & bus width 16bit SWAP = 1*/
  34                 __raw_writew(0x0a00, MRSHPC_MW1CR2);
  35         else
  36                 /* attribute mode & bus width 16bit SWAP = 0*/
  37                 __raw_writew(0x0200, MRSHPC_MW1CR2);
  38
  39         /* I/O window open */
  40         __raw_writew(0x8a86, MRSHPC_IOWCR1);
  41         __raw_writew(0x0008, MRSHPC_CDCR);       /* I/O card mode */
  42         if ((__raw_readw(MRSHPC_CSR) & 0x4000) != 0)
  43                 __raw_writew(0x0a00, MRSHPC_IOWCR2); /* bus width 16bit SWAP = 1*/
  44         else
  45                 __raw_writew(0x0200, MRSHPC_IOWCR2); /* bus width 16bit SWAP = 0*/
  46
  47         __raw_writew(0x2000, MRSHPC_ICR);
  48         __raw_writeb(0x00, PA_MRSHPC_MW2 + 0x206);
  49         __raw_writeb(0x42, PA_MRSHPC_MW2 + 0x200);
  50 }
  51
  52 #endif /* __MACH_SE_MRSHPC_H */