mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-25 12:33:41 +00:00
34 lines
1,006 B
C
34 lines
1,006 B
C
|
/*
|
||
|
|
* Altera CF drvier
|
||
|
|
*
|
||
|
|
* (C) Copyright 2010, Thomas Chou <thomas@wytron.com.tw>
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License version 2 as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*/
|
||
|
|
#include <common.h>
|
||
|
|
#include <asm/io.h>
|
||
|
|
|
||
|
|
#if defined(CONFIG_IDE_RESET) && defined(CONFIG_SYS_CF_CTL_BASE)
|
||
|
|
/* ide_set_reset for Altera CF interface */
|
||
|
|
#define ALTERA_CF_CTL_STATUS 0
|
||
|
|
#define ALTERA_CF_IDE_CTL 4
|
||
|
|
#define ALTERA_CF_CTL_STATUS_PRESENT_MSK (0x1)
|
||
|
|
#define ALTERA_CF_CTL_STATUS_POWER_MSK (0x2)
|
||
|
|
#define ALTERA_CF_CTL_STATUS_RESET_MSK (0x4)
|
||
|
|
#define ALTERA_CF_CTL_STATUS_IRQ_EN_MSK (0x8)
|
||
|
|
#define ALTERA_CF_IDE_CTL_IRQ_EN_MSK (0x1)
|
||
|
|
|
||
|
|
void ide_set_reset(int idereset)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
writel(idereset ? ALTERA_CF_CTL_STATUS_RESET_MSK :
|
||
|
|
ALTERA_CF_CTL_STATUS_POWER_MSK,
|
||
|
|
CONFIG_SYS_CF_CTL_BASE + ALTERA_CF_CTL_STATUS);
|
||
|
|
/* wait 500 ms for power to stabilize */
|
||
|
|
for (i = 0; i < 500; i++)
|
||
|
|
udelay(1000);
|
||
|
|
}
|
||
|
|
#endif
|