100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Marubun MR-SHPC-01 PCMCIA controller device driver
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*
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* (c) 2007 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
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*/
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#include <common.h>
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#include <config.h>
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#include <pcmcia.h>
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#include <asm/io.h>
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#undef CONFIG_PCMCIA
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#if defined(CONFIG_CMD_PCMCIA)
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#define CONFIG_PCMCIA
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#endif
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#if defined(CONFIG_IDE)
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#define CONFIG_PCMCIA
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#endif
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#if defined(CONFIG_PCMCIA)
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/* MR-SHPC-01 register */
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#define MRSHPC_MODE (CONFIG_SYS_MARUBUN_MRSHPC + 4)
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#define MRSHPC_OPTION (CONFIG_SYS_MARUBUN_MRSHPC + 6)
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#define MRSHPC_CSR (CONFIG_SYS_MARUBUN_MRSHPC + 8)
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#define MRSHPC_ISR (CONFIG_SYS_MARUBUN_MRSHPC + 10)
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#define MRSHPC_ICR (CONFIG_SYS_MARUBUN_MRSHPC + 12)
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#define MRSHPC_CPWCR (CONFIG_SYS_MARUBUN_MRSHPC + 14)
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#define MRSHPC_MW0CR1 (CONFIG_SYS_MARUBUN_MRSHPC + 16)
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#define MRSHPC_MW1CR1 (CONFIG_SYS_MARUBUN_MRSHPC + 18)
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#define MRSHPC_IOWCR1 (CONFIG_SYS_MARUBUN_MRSHPC + 20)
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#define MRSHPC_MW0CR2 (CONFIG_SYS_MARUBUN_MRSHPC + 22)
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#define MRSHPC_MW1CR2 (CONFIG_SYS_MARUBUN_MRSHPC + 24)
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#define MRSHPC_IOWCR2 (CONFIG_SYS_MARUBUN_MRSHPC + 26)
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#define MRSHPC_CDCR (CONFIG_SYS_MARUBUN_MRSHPC + 28)
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#define MRSHPC_PCIC_INFO (CONFIG_SYS_MARUBUN_MRSHPC + 30)
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int pcmcia_on (void)
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{
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printf("Enable PCMCIA " PCMCIA_SLOT_MSG "\n");
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/* Init */
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outw( 0x0000 , MRSHPC_MODE );
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if ((inw(MRSHPC_CSR) & 0x000c) == 0){ /* if card detect is true */
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if ((inw(MRSHPC_CSR) & 0x0080) == 0){
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outw(0x0674 ,MRSHPC_CPWCR); /* Card Vcc is 3.3v? */
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}else{
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outw(0x0678 ,MRSHPC_CPWCR); /* Card Vcc is 5V */
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}
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udelay( 100000 ); /* wait for power on */
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}else{
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return 1;
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}
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/*
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* PC-Card window open
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* flag == COMMON/ATTRIBUTE/IO
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*/
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/* common window open */
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outw(0x8a84,MRSHPC_MW0CR1); /* window 0xb8400000 */
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if ((inw(MRSHPC_CSR) & 0x4000) != 0)
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outw(0x0b00,MRSHPC_MW0CR2); /* common mode & bus width 16bit SWAP = 1 */
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else
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outw(0x0300,MRSHPC_MW0CR2); /* common mode & bus width 16bit SWAP = 0 */
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/* attribute window open */
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outw(0x8a85,MRSHPC_MW1CR1); /* window 0xb8500000 */
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if ((inw(MRSHPC_CSR) & 0x4000) != 0)
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outw(0x0a00,MRSHPC_MW1CR2); /* attribute mode & bus width 16bit SWAP = 1 */
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else
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outw(0x0200,MRSHPC_MW1CR2); /* attribute mode & bus width 16bit SWAP = 0 */
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/* I/O window open */
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outw(0x8a86,MRSHPC_IOWCR1); /* I/O window 0xb8600000 */
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outw(0x0008,MRSHPC_CDCR); /* I/O card mode */
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if ((inw(MRSHPC_CSR) & 0x4000) != 0)
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outw(0x0a00,MRSHPC_IOWCR2); /* bus width 16bit SWAP = 1 */
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else
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outw(0x0200,MRSHPC_IOWCR2); /* bus width 16bit SWAP = 0 */
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outw(0x0000,MRSHPC_ISR);
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outw(0x2000,MRSHPC_ICR);
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outb(0x00,(CONFIG_SYS_MARUBUN_MW2 + 0x206));
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outb(0x42,(CONFIG_SYS_MARUBUN_MW2 + 0x200));
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return 0;
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}
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int pcmcia_off (void)
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{
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printf ("Disable PCMCIA " PCMCIA_SLOT_MSG "\n");
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return 0;
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}
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#endif /* CONFIG_PCMCIA */
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