1 /* 2 * Marubun MR-SHPC-01 PCMCIA controller device driver 3 * 4 * (c) 2007 Nobuhiro Iwamatsu <iwamatsu@nigauri.org> 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License as 8 * published by the Free Software Foundation; either version 2 of 9 * the License, or (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 19 * MA 02111-1307 USA 20 * 21 */ 22 23 #include <common.h> 24 #include <config.h> 25 #include <pcmcia.h> 26 #include <asm/io.h> 27 28 #undef CONFIG_PCMCIA 29 30 #if defined(CONFIG_CMD_PCMCIA) 31 #define CONFIG_PCMCIA 32 #endif 33 34 #if defined(CONFIG_CMD_IDE) 35 #define CONFIG_PCMCIA 36 #endif 37 38 #if defined(CONFIG_PCMCIA) \ 39 && (defined(CONFIG_MARUBUN_PCCARD)) 40 41 /* MR-SHPC-01 register */ 42 #define MRSHPC_MODE (CFG_MARUBUN_MRSHPC + 4) 43 #define MRSHPC_OPTION (CFG_MARUBUN_MRSHPC + 6) 44 #define MRSHPC_CSR (CFG_MARUBUN_MRSHPC + 8) 45 #define MRSHPC_ISR (CFG_MARUBUN_MRSHPC + 10) 46 #define MRSHPC_ICR (CFG_MARUBUN_MRSHPC + 12) 47 #define MRSHPC_CPWCR (CFG_MARUBUN_MRSHPC + 14) 48 #define MRSHPC_MW0CR1 (CFG_MARUBUN_MRSHPC + 16) 49 #define MRSHPC_MW1CR1 (CFG_MARUBUN_MRSHPC + 18) 50 #define MRSHPC_IOWCR1 (CFG_MARUBUN_MRSHPC + 20) 51 #define MRSHPC_MW0CR2 (CFG_MARUBUN_MRSHPC + 22) 52 #define MRSHPC_MW1CR2 (CFG_MARUBUN_MRSHPC + 24) 53 #define MRSHPC_IOWCR2 (CFG_MARUBUN_MRSHPC + 26) 54 #define MRSHPC_CDCR (CFG_MARUBUN_MRSHPC + 28) 55 #define MRSHPC_PCIC_INFO (CFG_MARUBUN_MRSHPC + 30) 56 57 int pcmcia_on (void) 58 { 59 printf("Enable PCMCIA " PCMCIA_SLOT_MSG "\n"); 60 61 /* Init */ 62 outw( 0x0000 , MRSHPC_MODE ); 63 64 if ((inw(MRSHPC_CSR) & 0x000c) == 0){ /* if card detect is true */ 65 if ((inw(MRSHPC_CSR) & 0x0080) == 0){ 66 outw(0x0674 ,MRSHPC_CPWCR); /* Card Vcc is 3.3v? */ 67 }else{ 68 outw(0x0678 ,MRSHPC_CPWCR); /* Card Vcc is 5V */ 69 } 70 udelay( 100000 ); /* wait for power on */ 71 }else{ 72 return 1; 73 } 74 /* 75 * PC-Card window open 76 * flag == COMMON/ATTRIBUTE/IO 77 */ 78 /* common window open */ 79 outw(0x8a84,MRSHPC_MW0CR1); /* window 0xb8400000 */ 80 if ((inw(MRSHPC_CSR) & 0x4000) != 0) 81 outw(0x0b00,MRSHPC_MW0CR2); /* common mode & bus width 16bit SWAP = 1 */ 82 else 83 outw(0x0300,MRSHPC_MW0CR2); /* common mode & bus width 16bit SWAP = 0 */ 84 85 /* attribute window open */ 86 outw(0x8a85,MRSHPC_MW1CR1); /* window 0xb8500000 */ 87 if ((inw(MRSHPC_CSR) & 0x4000) != 0) 88 outw(0x0a00,MRSHPC_MW1CR2); /* attribute mode & bus width 16bit SWAP = 1 */ 89 else 90 outw(0x0200,MRSHPC_MW1CR2); /* attribute mode & bus width 16bit SWAP = 0 */ 91 92 /* I/O window open */ 93 outw(0x8a86,MRSHPC_IOWCR1); /* I/O window 0xb8600000 */ 94 outw(0x0008,MRSHPC_CDCR); /* I/O card mode */ 95 if ((inw(MRSHPC_CSR) & 0x4000) != 0) 96 outw(0x0a00,MRSHPC_IOWCR2); /* bus width 16bit SWAP = 1 */ 97 else 98 outw(0x0200,MRSHPC_IOWCR2); /* bus width 16bit SWAP = 0 */ 99 100 outw(0x0000,MRSHPC_ISR); 101 outw(0x2000,MRSHPC_ICR); 102 outb(0x00,(CFG_MARUBUN_MW2 + 0x206)); 103 outb(0x42,(CFG_MARUBUN_MW2 + 0x200)); 104 105 return 0; 106 } 107 108 int pcmcia_off (void) 109 { 110 printf ("Disable PCMCIA " PCMCIA_SLOT_MSG "\n"); 111 112 return 0; 113 } 114 115 #endif /* CONFIG_MARUBUN_PCCARD */ 116