diff options
Diffstat (limited to 'drivers/marubun_pcmcia.c')
| -rw-r--r-- | drivers/marubun_pcmcia.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/drivers/marubun_pcmcia.c b/drivers/marubun_pcmcia.c new file mode 100644 index 0000000..89b2015 --- /dev/null +++ b/drivers/marubun_pcmcia.c @@ -0,0 +1,113 @@ +/* + * Marubun MR-SHPC-01 PCMCIA controller device driver + * + * (c) 2007 Nobuhiro Iwamatsu <iwamatsu@nigauri.org> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ + +#include <common.h> +#include <config.h> +#include <pcmcia.h> +#include <asm/io.h> + +#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) +#define CONFIG_PCMCIA +#endif + +#if (CONFIG_COMMANDS & CFG_CMD_IDE) +#define CONFIG_PCMCIA +#endif + +#if defined(CONFIG_PCMCIA) \ + && (defined(CONFIG_MARUBUN_PCCARD)) + +/* MR-SHPC-01 register */ +#define MRSHPC_MODE (CFG_MARUBUN_MRSHPC + 4) +#define MRSHPC_OPTION (CFG_MARUBUN_MRSHPC + 6) +#define MRSHPC_CSR (CFG_MARUBUN_MRSHPC + 8) +#define MRSHPC_ISR (CFG_MARUBUN_MRSHPC + 10) +#define MRSHPC_ICR (CFG_MARUBUN_MRSHPC + 12) +#define MRSHPC_CPWCR (CFG_MARUBUN_MRSHPC + 14) +#define MRSHPC_MW0CR1 (CFG_MARUBUN_MRSHPC + 16) +#define MRSHPC_MW1CR1 (CFG_MARUBUN_MRSHPC + 18) +#define MRSHPC_IOWCR1 (CFG_MARUBUN_MRSHPC + 20) +#define MRSHPC_MW0CR2 (CFG_MARUBUN_MRSHPC + 22) +#define MRSHPC_MW1CR2 (CFG_MARUBUN_MRSHPC + 24) +#define MRSHPC_IOWCR2 (CFG_MARUBUN_MRSHPC + 26) +#define MRSHPC_CDCR (CFG_MARUBUN_MRSHPC + 28) +#define MRSHPC_PCIC_INFO (CFG_MARUBUN_MRSHPC + 30) + +int pcmcia_on (void) +{ + printf("Enable PCMCIA " PCMCIA_SLOT_MSG "\n"); + + /* Init */ + outw( 0x0000 , MRSHPC_MODE ); + + if ((inw(MRSHPC_CSR) & 0x000c) == 0){ /* if card detect is true */ + if ((inw(MRSHPC_CSR) & 0x0080) == 0){ + outw(0x0674 ,MRSHPC_CPWCR); /* Card Vcc is 3.3v? */ + }else{ + outw(0x0678 ,MRSHPC_CPWCR); /* Card Vcc is 5V */ + } + udelay( 100000 ); /* wait for power on */ + }else{ + return 1; + } + /* + * PC-Card window open + * flag == COMMON/ATTRIBUTE/IO + */ + /* common window open */ + outw(0x8a84,MRSHPC_MW0CR1); /* window 0xb8400000 */ + if ((inw(MRSHPC_CSR) & 0x4000) != 0) + outw(0x0b00,MRSHPC_MW0CR2); /* common mode & bus width 16bit SWAP = 1 */ + else + outw(0x0300,MRSHPC_MW0CR2); /* common mode & bus width 16bit SWAP = 0 */ + + /* attribute window open */ + outw(0x8a85,MRSHPC_MW1CR1); /* window 0xb8500000 */ + if ((inw(MRSHPC_CSR) & 0x4000) != 0) + outw(0x0a00,MRSHPC_MW1CR2); /* attribute mode & bus width 16bit SWAP = 1 */ + else + outw(0x0200,MRSHPC_MW1CR2); /* attribute mode & bus width 16bit SWAP = 0 */ + + /* I/O window open */ + outw(0x8a86,MRSHPC_IOWCR1); /* I/O window 0xb8600000 */ + outw(0x0008,MRSHPC_CDCR); /* I/O card mode */ + if ((inw(MRSHPC_CSR) & 0x4000) != 0) + outw(0x0a00,MRSHPC_IOWCR2); /* bus width 16bit SWAP = 1 */ + else + outw(0x0200,MRSHPC_IOWCR2); /* bus width 16bit SWAP = 0 */ + + outw(0x0000,MRSHPC_ISR); + outw(0x2000,MRSHPC_ICR); + outb(0x00,(CFG_MARUBUN_MW2 + 0x206)); + outb(0x42,(CFG_MARUBUN_MW2 + 0x200)); + + return 0; +} + +int pcmcia_off (void) +{ + printf ("Disable PCMCIA " PCMCIA_SLOT_MSG "\n"); + + return 0; +} + +#endif /* CONFIG_MARUBUN_PCCARD */ |