1 /* 2 * Marubun MR-SHPC-01 PCMCIA controller device driver 3 * 4 * (c) 2007 Nobuhiro Iwamatsu <iwamatsu@nigauri.org> 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 */ 8 9 #include <common.h> 10 #include <config.h> 11 #include <pcmcia.h> 12 #include <asm/io.h> 13 14 #undef CONFIG_PCMCIA 15 16 #if defined(CONFIG_CMD_PCMCIA) 17 #define CONFIG_PCMCIA 18 #endif 19 20 #if defined(CONFIG_IDE) 21 #define CONFIG_PCMCIA 22 #endif 23 24 #if defined(CONFIG_PCMCIA) 25 26 /* MR-SHPC-01 register */ 27 #define MRSHPC_MODE (CONFIG_SYS_MARUBUN_MRSHPC + 4) 28 #define MRSHPC_OPTION (CONFIG_SYS_MARUBUN_MRSHPC + 6) 29 #define MRSHPC_CSR (CONFIG_SYS_MARUBUN_MRSHPC + 8) 30 #define MRSHPC_ISR (CONFIG_SYS_MARUBUN_MRSHPC + 10) 31 #define MRSHPC_ICR (CONFIG_SYS_MARUBUN_MRSHPC + 12) 32 #define MRSHPC_CPWCR (CONFIG_SYS_MARUBUN_MRSHPC + 14) 33 #define MRSHPC_MW0CR1 (CONFIG_SYS_MARUBUN_MRSHPC + 16) 34 #define MRSHPC_MW1CR1 (CONFIG_SYS_MARUBUN_MRSHPC + 18) 35 #define MRSHPC_IOWCR1 (CONFIG_SYS_MARUBUN_MRSHPC + 20) 36 #define MRSHPC_MW0CR2 (CONFIG_SYS_MARUBUN_MRSHPC + 22) 37 #define MRSHPC_MW1CR2 (CONFIG_SYS_MARUBUN_MRSHPC + 24) 38 #define MRSHPC_IOWCR2 (CONFIG_SYS_MARUBUN_MRSHPC + 26) 39 #define MRSHPC_CDCR (CONFIG_SYS_MARUBUN_MRSHPC + 28) 40 #define MRSHPC_PCIC_INFO (CONFIG_SYS_MARUBUN_MRSHPC + 30) 41 42 int pcmcia_on (void) 43 { 44 printf("Enable PCMCIA " PCMCIA_SLOT_MSG "\n"); 45 46 /* Init */ 47 outw( 0x0000 , MRSHPC_MODE ); 48 49 if ((inw(MRSHPC_CSR) & 0x000c) == 0){ /* if card detect is true */ 50 if ((inw(MRSHPC_CSR) & 0x0080) == 0){ 51 outw(0x0674 ,MRSHPC_CPWCR); /* Card Vcc is 3.3v? */ 52 }else{ 53 outw(0x0678 ,MRSHPC_CPWCR); /* Card Vcc is 5V */ 54 } 55 udelay( 100000 ); /* wait for power on */ 56 }else{ 57 return 1; 58 } 59 /* 60 * PC-Card window open 61 * flag == COMMON/ATTRIBUTE/IO 62 */ 63 /* common window open */ 64 outw(0x8a84,MRSHPC_MW0CR1); /* window 0xb8400000 */ 65 if ((inw(MRSHPC_CSR) & 0x4000) != 0) 66 outw(0x0b00,MRSHPC_MW0CR2); /* common mode & bus width 16bit SWAP = 1 */ 67 else 68 outw(0x0300,MRSHPC_MW0CR2); /* common mode & bus width 16bit SWAP = 0 */ 69 70 /* attribute window open */ 71 outw(0x8a85,MRSHPC_MW1CR1); /* window 0xb8500000 */ 72 if ((inw(MRSHPC_CSR) & 0x4000) != 0) 73 outw(0x0a00,MRSHPC_MW1CR2); /* attribute mode & bus width 16bit SWAP = 1 */ 74 else 75 outw(0x0200,MRSHPC_MW1CR2); /* attribute mode & bus width 16bit SWAP = 0 */ 76 77 /* I/O window open */ 78 outw(0x8a86,MRSHPC_IOWCR1); /* I/O window 0xb8600000 */ 79 outw(0x0008,MRSHPC_CDCR); /* I/O card mode */ 80 if ((inw(MRSHPC_CSR) & 0x4000) != 0) 81 outw(0x0a00,MRSHPC_IOWCR2); /* bus width 16bit SWAP = 1 */ 82 else 83 outw(0x0200,MRSHPC_IOWCR2); /* bus width 16bit SWAP = 0 */ 84 85 outw(0x0000,MRSHPC_ISR); 86 outw(0x2000,MRSHPC_ICR); 87 outb(0x00,(CONFIG_SYS_MARUBUN_MW2 + 0x206)); 88 outb(0x42,(CONFIG_SYS_MARUBUN_MW2 + 0x200)); 89 90 return 0; 91 } 92 93 int pcmcia_off (void) 94 { 95 printf ("Disable PCMCIA " PCMCIA_SLOT_MSG "\n"); 96 97 return 0; 98 } 99 100 #endif /* CONFIG_PCMCIA */ 101