LXR uboot/board/bf537-stamp/ide-cf.c

   1/*
   2 * CF IDE addon card code
   3 *
   4 * Enter bugs at http://blackfin.uclinux.org/
   5 *
   6 * Copyright (c) 2005-2009 Analog Devices Inc.
   7 *
   8 * Licensed under the GPL-2 or later.
   9 */
  10
  11#include <common.h>
  12#include <config.h>
  13#include <command.h>
  14#include <asm/blackfin.h>
  15
  16void cf_outb(unsigned char val, volatile unsigned char *addr)
  17{
  18        *(addr) = val;
  19        SSYNC();
  20}
  21
  22unsigned char cf_inb(volatile unsigned char *addr)
  23{
  24        volatile unsigned char c;
  25
  26        c = *(addr);
  27        SSYNC();
  28
  29        return c;
  30}
  31
  32void cf_insw(unsigned short *sect_buf, unsigned short *addr, int words)
  33{
  34        int i;
  35
  36        for (i = 0; i < words; i++)
  37                *(sect_buf + i) = *(addr);
  38        SSYNC();
  39}
  40
  41void cf_outsw(unsigned short *addr, unsigned short *sect_buf, int words)
  42{
  43        int i;
  44
  45        for (i = 0; i < words; i++)
  46                *(addr) = *(sect_buf + i);
  47        SSYNC();
  48}
  49
  50void cf_ide_init(void)
  51{
  52#if defined(CONFIG_BFIN_TRUE_IDE)
  53        /* Enable ATASEL when in True IDE mode */
  54        printf("Using CF True IDE Mode\n");
  55        cf_outb(0, (unsigned char *)CONFIG_CF_ATASEL_ENA);
  56        udelay(1000);
  57#elif defined(CONFIG_BFIN_CF_IDE)
  58        /* Disable ATASEL when we're in Common Memory Mode */
  59        printf("Using CF Common Memory Mode\n");
  60        cf_outb(0, (unsigned char *)CONFIG_CF_ATASEL_DIS);
  61        udelay(1000);
  62#elif defined(CONFIG_BFIN_HDD_IDE)
  63        printf("Using HDD IDE Mode\n");
  64#endif
  65        ide_init();
  66}
  67