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/*
* Marubun MR-SHPC-01 PCMCIA controller device driver
*
* (c) 2007 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#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)
/* MR-SHPC-01 register */
#define MRSHPC_MODE (CONFIG_SYS_MARUBUN_MRSHPC + 4)
#define MRSHPC_OPTION (CONFIG_SYS_MARUBUN_MRSHPC + 6)
#define MRSHPC_CSR (CONFIG_SYS_MARUBUN_MRSHPC + 8)
#define MRSHPC_ISR (CONFIG_SYS_MARUBUN_MRSHPC + 10)
#define MRSHPC_ICR (CONFIG_SYS_MARUBUN_MRSHPC + 12)
#define MRSHPC_CPWCR (CONFIG_SYS_MARUBUN_MRSHPC + 14)
#define MRSHPC_MW0CR1 (CONFIG_SYS_MARUBUN_MRSHPC + 16)
#define MRSHPC_MW1CR1 (CONFIG_SYS_MARUBUN_MRSHPC + 18)
#define MRSHPC_IOWCR1 (CONFIG_SYS_MARUBUN_MRSHPC + 20)
#define MRSHPC_MW0CR2 (CONFIG_SYS_MARUBUN_MRSHPC + 22)
#define MRSHPC_MW1CR2 (CONFIG_SYS_MARUBUN_MRSHPC + 24)
#define MRSHPC_IOWCR2 (CONFIG_SYS_MARUBUN_MRSHPC + 26)
#define MRSHPC_CDCR (CONFIG_SYS_MARUBUN_MRSHPC + 28)
#define MRSHPC_PCIC_INFO (CONFIG_SYS_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,(CONFIG_SYS_MARUBUN_MW2 + 0x206));
outb(0x42,(CONFIG_SYS_MARUBUN_MW2 + 0x200));
return 0;
}
int pcmcia_off (void)
{
printf ("Disable PCMCIA " PCMCIA_SLOT_MSG "\n");
return 0;
}
#endif /* CONFIG_PCMCIA */
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