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99 lines
2.8 KiB
99 lines
2.8 KiB
// 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 <[email protected]> |
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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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