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 40 /* MR-SHPC-01 register */ 41 #define MRSHPC_MODE (CONFIG_SYS_MARUBUN_MRSHPC + 4) 42 #define MRSHPC_OPTION (CONFIG_SYS_MARUBUN_MRSHPC + 6) 43 #define MRSHPC_CSR (CONFIG_SYS_MARUBUN_MRSHPC + 8) 44 #define MRSHPC_ISR (CONFIG_SYS_MARUBUN_MRSHPC + 10) 45 #define MRSHPC_ICR (CONFIG_SYS_MARUBUN_MRSHPC + 12) 46 #define MRSHPC_CPWCR (CONFIG_SYS_MARUBUN_MRSHPC + 14) 47 #define MRSHPC_MW0CR1 (CONFIG_SYS_MARUBUN_MRSHPC + 16) 48 #define MRSHPC_MW1CR1 (CONFIG_SYS_MARUBUN_MRSHPC + 18) 49 #define MRSHPC_IOWCR1 (CONFIG_SYS_MARUBUN_MRSHPC + 20) 50 #define MRSHPC_MW0CR2 (CONFIG_SYS_MARUBUN_MRSHPC + 22) 51 #define MRSHPC_MW1CR2 (CONFIG_SYS_MARUBUN_MRSHPC + 24) 52 #define MRSHPC_IOWCR2 (CONFIG_SYS_MARUBUN_MRSHPC + 26) 53 #define MRSHPC_CDCR (CONFIG_SYS_MARUBUN_MRSHPC + 28) 54 #define MRSHPC_PCIC_INFO (CONFIG_SYS_MARUBUN_MRSHPC + 30) 55 56 int pcmcia_on (void) 57 { 58 printf("Enable PCMCIA " PCMCIA_SLOT_MSG "\n"); 59 60 /* Init */ 61 outw( 0x0000 , MRSHPC_MODE ); 62 63 if ((inw(MRSHPC_CSR) & 0x000c) == 0){ /* if card detect is true */ 64 if ((inw(MRSHPC_CSR) & 0x0080) == 0){ 65 outw(0x0674 ,MRSHPC_CPWCR); /* Card Vcc is 3.3v? */ 66 }else{ 67 outw(0x0678 ,MRSHPC_CPWCR); /* Card Vcc is 5V */ 68 } 69 udelay( 100000 ); /* wait for power on */ 70 }else{ 71 return 1; 72 } 73 /* 74 * PC-Card window open 75 * flag == COMMON/ATTRIBUTE/IO 76 */ 77 /* common window open */ 78 outw(0x8a84,MRSHPC_MW0CR1); /* window 0xb8400000 */ 79 if ((inw(MRSHPC_CSR) & 0x4000) != 0) 80 outw(0x0b00,MRSHPC_MW0CR2); /* common mode & bus width 16bit SWAP = 1 */ 81 else 82 outw(0x0300,MRSHPC_MW0CR2); /* common mode & bus width 16bit SWAP = 0 */ 83 84 /* attribute window open */ 85 outw(0x8a85,MRSHPC_MW1CR1); /* window 0xb8500000 */ 86 if ((inw(MRSHPC_CSR) & 0x4000) != 0) 87 outw(0x0a00,MRSHPC_MW1CR2); /* attribute mode & bus width 16bit SWAP = 1 */ 88 else 89 outw(0x0200,MRSHPC_MW1CR2); /* attribute mode & bus width 16bit SWAP = 0 */ 90 91 /* I/O window open */ 92 outw(0x8a86,MRSHPC_IOWCR1); /* I/O window 0xb8600000 */ 93 outw(0x0008,MRSHPC_CDCR); /* I/O card mode */ 94 if ((inw(MRSHPC_CSR) & 0x4000) != 0) 95 outw(0x0a00,MRSHPC_IOWCR2); /* bus width 16bit SWAP = 1 */ 96 else 97 outw(0x0200,MRSHPC_IOWCR2); /* bus width 16bit SWAP = 0 */ 98 99 outw(0x0000,MRSHPC_ISR); 100 outw(0x2000,MRSHPC_ICR); 101 outb(0x00,(CONFIG_SYS_MARUBUN_MW2 + 0x206)); 102 outb(0x42,(CONFIG_SYS_MARUBUN_MW2 + 0x200)); 103 104 return 0; 105 } 106 107 int pcmcia_off (void) 108 { 109 printf ("Disable PCMCIA " PCMCIA_SLOT_MSG "\n"); 110 111 return 0; 112 } 113 114 #endif /* CONFIG_PCMCIA */ 115