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