/* * Marubun MR-SHPC-01 PCMCIA controller device driver * * (c) 2007 Nobuhiro Iwamatsu <iwamatsu@nigauri.org> * * SPDX-License-Identifier: GPL-2.0+ */ #include <common.h> #include <config.h> #include <pcmcia.h> #include <asm/io.h> #undef CONFIG_PCMCIA #if defined(CONFIG_CMD_PCMCIA) #define CONFIG_PCMCIA #endif #if defined(CONFIG_CMD_IDE) #define CONFIG_PCMCIA #endif #if defined(CONFIG_PCMCIA) /* MR-SHPC-01 register */ #define MRSHPC_MODE (CONFIG_SYS_MARUBUN_MRSHPC + 4) #define MRSHPC_OPTION (CONFIG_SYS_MARUBUN_MRSHPC + 6) #define MRSHPC_CSR (CONFIG_SYS_MARUBUN_MRSHPC + 8) #define MRSHPC_ISR (CONFIG_SYS_MARUBUN_MRSHPC + 10) #define MRSHPC_ICR (CONFIG_SYS_MARUBUN_MRSHPC + 12) #define MRSHPC_CPWCR (CONFIG_SYS_MARUBUN_MRSHPC + 14) #define MRSHPC_MW0CR1 (CONFIG_SYS_MARUBUN_MRSHPC + 16) #define MRSHPC_MW1CR1 (CONFIG_SYS_MARUBUN_MRSHPC + 18) #define MRSHPC_IOWCR1 (CONFIG_SYS_MARUBUN_MRSHPC + 20) #define MRSHPC_MW0CR2 (CONFIG_SYS_MARUBUN_MRSHPC + 22) #define MRSHPC_MW1CR2 (CONFIG_SYS_MARUBUN_MRSHPC + 24) #define MRSHPC_IOWCR2 (CONFIG_SYS_MARUBUN_MRSHPC + 26) #define MRSHPC_CDCR (CONFIG_SYS_MARUBUN_MRSHPC + 28) #define MRSHPC_PCIC_INFO (CONFIG_SYS_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,(CONFIG_SYS_MARUBUN_MW2 + 0x206)); outb(0x42,(CONFIG_SYS_MARUBUN_MW2 + 0x200)); return 0; } int pcmcia_off (void) { printf ("Disable PCMCIA " PCMCIA_SLOT_MSG "\n"); return 0; } #endif /* CONFIG_PCMCIA */