1 /*
2  * Marubun MR-SHPC-01 PCMCIA controller device driver
3  *
4  * (c) 2007 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
5  *
6  * SPDX-License-Identifier:	GPL-2.0+
7  */
8 
9 #include <common.h>
10 #include <config.h>
11 #include <pcmcia.h>
12 #include <asm/io.h>
13 
14 #undef CONFIG_PCMCIA
15 
16 #if defined(CONFIG_CMD_PCMCIA)
17 #define	CONFIG_PCMCIA
18 #endif
19 
20 #if defined(CONFIG_CMD_IDE)
21 #define	CONFIG_PCMCIA
22 #endif
23 
24 #if defined(CONFIG_PCMCIA)
25 
26 /* MR-SHPC-01 register */
27 #define MRSHPC_MODE	(CONFIG_SYS_MARUBUN_MRSHPC + 4)
28 #define MRSHPC_OPTION   (CONFIG_SYS_MARUBUN_MRSHPC + 6)
29 #define MRSHPC_CSR      (CONFIG_SYS_MARUBUN_MRSHPC + 8)
30 #define MRSHPC_ISR      (CONFIG_SYS_MARUBUN_MRSHPC + 10)
31 #define MRSHPC_ICR      (CONFIG_SYS_MARUBUN_MRSHPC + 12)
32 #define MRSHPC_CPWCR    (CONFIG_SYS_MARUBUN_MRSHPC + 14)
33 #define MRSHPC_MW0CR1   (CONFIG_SYS_MARUBUN_MRSHPC + 16)
34 #define MRSHPC_MW1CR1   (CONFIG_SYS_MARUBUN_MRSHPC + 18)
35 #define MRSHPC_IOWCR1   (CONFIG_SYS_MARUBUN_MRSHPC + 20)
36 #define MRSHPC_MW0CR2   (CONFIG_SYS_MARUBUN_MRSHPC + 22)
37 #define MRSHPC_MW1CR2   (CONFIG_SYS_MARUBUN_MRSHPC + 24)
38 #define MRSHPC_IOWCR2   (CONFIG_SYS_MARUBUN_MRSHPC + 26)
39 #define MRSHPC_CDCR     (CONFIG_SYS_MARUBUN_MRSHPC + 28)
40 #define MRSHPC_PCIC_INFO (CONFIG_SYS_MARUBUN_MRSHPC + 30)
41 
42 int pcmcia_on (void)
43 {
44 	printf("Enable PCMCIA " PCMCIA_SLOT_MSG "\n");
45 
46 	/* Init */
47 	outw( 0x0000 , MRSHPC_MODE );
48 
49 	if ((inw(MRSHPC_CSR) & 0x000c) == 0){	/* if card detect is true */
50 		if ((inw(MRSHPC_CSR) & 0x0080) == 0){
51 			outw(0x0674 ,MRSHPC_CPWCR);  /* Card Vcc is 3.3v? */
52 		}else{
53 			outw(0x0678 ,MRSHPC_CPWCR);  /* Card Vcc is 5V */
54 		}
55 		udelay( 100000 );   /* wait for power on */
56 	}else{
57 		return 1;
58 	}
59 	/*
60 	 *	PC-Card window open
61 	 *	flag == COMMON/ATTRIBUTE/IO
62 	 */
63 	/* common window open */
64 	outw(0x8a84,MRSHPC_MW0CR1); /* window 0xb8400000 */
65 	if ((inw(MRSHPC_CSR) & 0x4000) != 0)
66 		outw(0x0b00,MRSHPC_MW0CR2); /* common mode & bus width 16bit SWAP = 1 */
67 	else
68 		outw(0x0300,MRSHPC_MW0CR2); /* common mode & bus width 16bit SWAP = 0 */
69 
70 	/* attribute window open */
71 	outw(0x8a85,MRSHPC_MW1CR1); /* window 0xb8500000 */
72 	if ((inw(MRSHPC_CSR) & 0x4000) != 0)
73 		outw(0x0a00,MRSHPC_MW1CR2); /* attribute mode & bus width 16bit SWAP = 1 */
74 	else
75 		outw(0x0200,MRSHPC_MW1CR2); /* attribute mode & bus width 16bit SWAP = 0 */
76 
77 	/* I/O window open */
78 	outw(0x8a86,MRSHPC_IOWCR1); /* I/O window 0xb8600000 */
79 	outw(0x0008,MRSHPC_CDCR);   /* I/O card mode */
80 	if ((inw(MRSHPC_CSR) & 0x4000) != 0)
81 		outw(0x0a00,MRSHPC_IOWCR2); /* bus width 16bit SWAP = 1 */
82 	else
83 		outw(0x0200,MRSHPC_IOWCR2); /* bus width 16bit SWAP = 0 */
84 
85 	outw(0x0000,MRSHPC_ISR);
86 	outw(0x2000,MRSHPC_ICR);
87 	outb(0x00,(CONFIG_SYS_MARUBUN_MW2 + 0x206));
88 	outb(0x42,(CONFIG_SYS_MARUBUN_MW2 + 0x200));
89 
90 	return 0;
91 }
92 
93 int pcmcia_off (void)
94 {
95 	printf ("Disable PCMCIA " PCMCIA_SLOT_MSG "\n");
96 
97 	return 0;
98 }
99 
100 #endif /* CONFIG_PCMCIA */
101