ide.c
2.65 KB
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/*
* (C) Copyright 2001
* Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
*
* (C) Copyright 2000-2011
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <ide.h>
#include <ata.h>
#include <asm/io.h>
#define EIEIO __asm__ volatile ("eieio")
#define SYNC __asm__ volatile ("sync")
void ide_input_swap_data(int dev, ulong *sect_buf, int words)
{
uchar i;
volatile uchar *pbuf_even =
(uchar *) (ATA_CURR_BASE(dev) + ATA_DATA_EVEN);
volatile uchar *pbuf_odd =
(uchar *) (ATA_CURR_BASE(dev) + ATA_DATA_ODD);
ushort *dbuf = (ushort *) sect_buf;
while (words--) {
for (i = 0; i < 2; i++) {
*(((uchar *) (dbuf)) + 1) = *pbuf_even;
*(uchar *) dbuf = *pbuf_odd;
dbuf += 1;
}
}
}
void ide_input_data(int dev, ulong *sect_buf, int words)
{
uchar *dbuf;
volatile uchar *pbuf_even;
volatile uchar *pbuf_odd;
pbuf_even = (uchar *) (ATA_CURR_BASE(dev) + ATA_DATA_EVEN);
pbuf_odd = (uchar *) (ATA_CURR_BASE(dev) + ATA_DATA_ODD);
dbuf = (uchar *) sect_buf;
while (words--) {
*dbuf++ = *pbuf_even;
EIEIO;
SYNC;
*dbuf++ = *pbuf_odd;
EIEIO;
SYNC;
*dbuf++ = *pbuf_even;
EIEIO;
SYNC;
*dbuf++ = *pbuf_odd;
EIEIO;
SYNC;
}
}
void ide_input_data_shorts(int dev, ushort *sect_buf, int shorts)
{
uchar *dbuf;
volatile uchar *pbuf_even;
volatile uchar *pbuf_odd;
pbuf_even = (uchar *) (ATA_CURR_BASE(dev) + ATA_DATA_EVEN);
pbuf_odd = (uchar *) (ATA_CURR_BASE(dev) + ATA_DATA_ODD);
dbuf = (uchar *) sect_buf;
while (shorts--) {
EIEIO;
*dbuf++ = *pbuf_even;
EIEIO;
*dbuf++ = *pbuf_odd;
}
}
void ide_output_data(int dev, const ulong *sect_buf, int words)
{
uchar *dbuf;
volatile uchar *pbuf_even;
volatile uchar *pbuf_odd;
pbuf_even = (uchar *) (ATA_CURR_BASE(dev) + ATA_DATA_EVEN);
pbuf_odd = (uchar *) (ATA_CURR_BASE(dev) + ATA_DATA_ODD);
dbuf = (uchar *) sect_buf;
while (words--) {
EIEIO;
*pbuf_even = *dbuf++;
EIEIO;
*pbuf_odd = *dbuf++;
EIEIO;
*pbuf_even = *dbuf++;
EIEIO;
*pbuf_odd = *dbuf++;
}
}
void ide_output_data_shorts(int dev, ushort *sect_buf, int shorts)
{
uchar *dbuf;
volatile uchar *pbuf_even;
volatile uchar *pbuf_odd;
pbuf_even = (uchar *) (ATA_CURR_BASE(dev) + ATA_DATA_EVEN);
pbuf_odd = (uchar *) (ATA_CURR_BASE(dev) + ATA_DATA_ODD);
dbuf = (uchar *) sect_buf;
while (shorts--) {
EIEIO;
*pbuf_even = *dbuf++;
EIEIO;
*pbuf_odd = *dbuf++;
}
}
void ide_led(uchar led, uchar status)
{
u_char val;
/* We have one PCMCIA slot and use LED H4 for the IDE Interface */
val = readb(BCSR_BASE + 0x04);
if (status) /* led on */
val |= B_CTRL_LED0;
else
val &= ~B_CTRL_LED0;
writeb(val, BCSR_BASE + 0x04);
}