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