mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-24 02:48:51 +09:00
116 lines
3.4 KiB
C
116 lines
3.4 KiB
C
/*
|
|
* Marubun MR-SHPC-01 PCMCIA controller device driver
|
|
*
|
|
* (c) 2007 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <config.h>
|
|
#include <pcmcia.h>
|
|
#include <asm/io.h>
|
|
|
|
#undef CONFIG_PCMCIA
|
|
|
|
#if defined(CONFIG_CMD_PCMCIA)
|
|
#define CONFIG_PCMCIA
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_IDE)
|
|
#define CONFIG_PCMCIA
|
|
#endif
|
|
|
|
#if defined(CONFIG_PCMCIA) \
|
|
&& (defined(CONFIG_MARUBUN_PCCARD))
|
|
|
|
/* MR-SHPC-01 register */
|
|
#define MRSHPC_MODE (CFG_MARUBUN_MRSHPC + 4)
|
|
#define MRSHPC_OPTION (CFG_MARUBUN_MRSHPC + 6)
|
|
#define MRSHPC_CSR (CFG_MARUBUN_MRSHPC + 8)
|
|
#define MRSHPC_ISR (CFG_MARUBUN_MRSHPC + 10)
|
|
#define MRSHPC_ICR (CFG_MARUBUN_MRSHPC + 12)
|
|
#define MRSHPC_CPWCR (CFG_MARUBUN_MRSHPC + 14)
|
|
#define MRSHPC_MW0CR1 (CFG_MARUBUN_MRSHPC + 16)
|
|
#define MRSHPC_MW1CR1 (CFG_MARUBUN_MRSHPC + 18)
|
|
#define MRSHPC_IOWCR1 (CFG_MARUBUN_MRSHPC + 20)
|
|
#define MRSHPC_MW0CR2 (CFG_MARUBUN_MRSHPC + 22)
|
|
#define MRSHPC_MW1CR2 (CFG_MARUBUN_MRSHPC + 24)
|
|
#define MRSHPC_IOWCR2 (CFG_MARUBUN_MRSHPC + 26)
|
|
#define MRSHPC_CDCR (CFG_MARUBUN_MRSHPC + 28)
|
|
#define MRSHPC_PCIC_INFO (CFG_MARUBUN_MRSHPC + 30)
|
|
|
|
int pcmcia_on (void)
|
|
{
|
|
printf("Enable PCMCIA " PCMCIA_SLOT_MSG "\n");
|
|
|
|
/* Init */
|
|
outw( 0x0000 , MRSHPC_MODE );
|
|
|
|
if ((inw(MRSHPC_CSR) & 0x000c) == 0){ /* if card detect is true */
|
|
if ((inw(MRSHPC_CSR) & 0x0080) == 0){
|
|
outw(0x0674 ,MRSHPC_CPWCR); /* Card Vcc is 3.3v? */
|
|
}else{
|
|
outw(0x0678 ,MRSHPC_CPWCR); /* Card Vcc is 5V */
|
|
}
|
|
udelay( 100000 ); /* wait for power on */
|
|
}else{
|
|
return 1;
|
|
}
|
|
/*
|
|
* PC-Card window open
|
|
* flag == COMMON/ATTRIBUTE/IO
|
|
*/
|
|
/* common window open */
|
|
outw(0x8a84,MRSHPC_MW0CR1); /* window 0xb8400000 */
|
|
if ((inw(MRSHPC_CSR) & 0x4000) != 0)
|
|
outw(0x0b00,MRSHPC_MW0CR2); /* common mode & bus width 16bit SWAP = 1 */
|
|
else
|
|
outw(0x0300,MRSHPC_MW0CR2); /* common mode & bus width 16bit SWAP = 0 */
|
|
|
|
/* attribute window open */
|
|
outw(0x8a85,MRSHPC_MW1CR1); /* window 0xb8500000 */
|
|
if ((inw(MRSHPC_CSR) & 0x4000) != 0)
|
|
outw(0x0a00,MRSHPC_MW1CR2); /* attribute mode & bus width 16bit SWAP = 1 */
|
|
else
|
|
outw(0x0200,MRSHPC_MW1CR2); /* attribute mode & bus width 16bit SWAP = 0 */
|
|
|
|
/* I/O window open */
|
|
outw(0x8a86,MRSHPC_IOWCR1); /* I/O window 0xb8600000 */
|
|
outw(0x0008,MRSHPC_CDCR); /* I/O card mode */
|
|
if ((inw(MRSHPC_CSR) & 0x4000) != 0)
|
|
outw(0x0a00,MRSHPC_IOWCR2); /* bus width 16bit SWAP = 1 */
|
|
else
|
|
outw(0x0200,MRSHPC_IOWCR2); /* bus width 16bit SWAP = 0 */
|
|
|
|
outw(0x0000,MRSHPC_ISR);
|
|
outw(0x2000,MRSHPC_ICR);
|
|
outb(0x00,(CFG_MARUBUN_MW2 + 0x206));
|
|
outb(0x42,(CFG_MARUBUN_MW2 + 0x200));
|
|
|
|
return 0;
|
|
}
|
|
|
|
int pcmcia_off (void)
|
|
{
|
|
printf ("Disable PCMCIA " PCMCIA_SLOT_MSG "\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_MARUBUN_PCCARD */
|