ide-cf.c
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/*
* CF IDE addon card code
*
* Enter bugs at http://blackfin.uclinux.org/
*
* Copyright (c) 2005-2009 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#include <common.h>
#include <config.h>
#include <command.h>
#include <asm/blackfin.h>
void cf_outb(unsigned char val, volatile unsigned char *addr)
{
*(addr) = val;
SSYNC();
}
unsigned char cf_inb(volatile unsigned char *addr)
{
volatile unsigned char c;
c = *(addr);
SSYNC();
return c;
}
void cf_insw(unsigned short *sect_buf, unsigned short *addr, int words)
{
int i;
for (i = 0; i < words; i++)
*(sect_buf + i) = *(addr);
SSYNC();
}
void cf_outsw(unsigned short *addr, unsigned short *sect_buf, int words)
{
int i;
for (i = 0; i < words; i++)
*(addr) = *(sect_buf + i);
SSYNC();
}
void cf_ide_init(void)
{
#if defined(CONFIG_BFIN_TRUE_IDE)
/* Enable ATASEL when in True IDE mode */
printf("Using CF True IDE Mode\n");
cf_outb(0, (unsigned char *)CONFIG_CF_ATASEL_ENA);
udelay(1000);
#elif defined(CONFIG_BFIN_CF_IDE)
/* Disable ATASEL when we're in Common Memory Mode */
printf("Using CF Common Memory Mode\n");
cf_outb(0, (unsigned char *)CONFIG_CF_ATASEL_DIS);
udelay(1000);
#elif defined(CONFIG_BFIN_HDD_IDE)
printf("Using HDD IDE Mode\n");
#endif
ide_init();
}