aboutsummaryrefslogtreecommitdiffstats
path: root/arch/sh/kernel/cf-enabler.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sh/kernel/cf-enabler.c')
-rw-r--r--arch/sh/kernel/cf-enabler.c168
1 files changed, 0 insertions, 168 deletions
diff --git a/arch/sh/kernel/cf-enabler.c b/arch/sh/kernel/cf-enabler.c
deleted file mode 100644
index bea40339919b..000000000000
--- a/arch/sh/kernel/cf-enabler.c
+++ /dev/null
@@ -1,168 +0,0 @@
1/* $Id: cf-enabler.c,v 1.4 2004/02/22 22:44:36 kkojima Exp $
2 *
3 * linux/drivers/block/cf-enabler.c
4 *
5 * Copyright (C) 1999 Niibe Yutaka
6 * Copyright (C) 2000 Toshiharu Nozawa
7 * Copyright (C) 2001 A&D Co., Ltd.
8 *
9 * Enable the CF configuration.
10 */
11
12#include <linux/init.h>
13#include <linux/mm.h>
14#include <linux/vmalloc.h>
15#include <linux/interrupt.h>
16#include <asm/io.h>
17#include <asm/irq.h>
18
19/*
20 * You can connect Compact Flash directly to the bus of SuperH.
21 * This is the enabler for that.
22 *
23 * SIM: How generic is this really? It looks pretty board, or at
24 * least SH sub-type, specific to me.
25 * I know it doesn't work on the Overdrive!
26 */
27
28/*
29 * 0xB8000000 : Attribute
30 * 0xB8001000 : Common Memory
31 * 0xBA000000 : I/O
32 */
33#if defined(CONFIG_CPU_SH4)
34/* SH4 can't access PCMCIA interface through P2 area.
35 * we must remap it with appropriate attribute bit of the page set.
36 * this part is based on Greg Banks' hd64465_ss.c implementation - Masahiro Abe */
37
38#if defined(CONFIG_CF_AREA6)
39#define slot_no 0
40#else
41#define slot_no 1
42#endif
43
44/* use this pointer to access to directly connected compact flash io area*/
45void *cf_io_base;
46
47static int __init allocate_cf_area(void)
48{
49 pgprot_t prot;
50 unsigned long paddrbase, psize;
51
52 /* open I/O area window */
53 paddrbase = virt_to_phys((void*)CONFIG_CF_BASE_ADDR);
54 psize = PAGE_SIZE;
55 prot = PAGE_KERNEL_PCC(slot_no, _PAGE_PCC_IO16);
56 cf_io_base = p3_ioremap(paddrbase, psize, prot.pgprot);
57 if (!cf_io_base) {
58 printk("allocate_cf_area : can't open CF I/O window!\n");
59 return -ENOMEM;
60 }
61/* printk("p3_ioremap(paddr=0x%08lx, psize=0x%08lx, prot=0x%08lx)=0x%08lx\n",
62 paddrbase, psize, prot.pgprot, cf_io_base);*/
63
64 /* XXX : do we need attribute and common-memory area also? */
65
66 return 0;
67}
68#endif
69
70static int __init cf_init_default(void)
71{
72/* You must have enabled the card, and set the level interrupt
73 * before reaching this point. Possibly in boot ROM or boot loader.
74 */
75#if defined(CONFIG_CPU_SH4)
76 allocate_cf_area();
77#endif
78
79 return 0;
80}
81
82#if defined(CONFIG_SH_SOLUTION_ENGINE)
83#include <mach-se/mach/se.h>
84#elif defined(CONFIG_SH_7722_SOLUTION_ENGINE)
85#include <mach-se/mach/se7722.h>
86#elif defined(CONFIG_SH_7721_SOLUTION_ENGINE)
87#include <mach-se/mach/se7721.h>
88#endif
89
90/*
91 * SolutionEngine Seriese
92 *
93 * about MS770xSE
94 * 0xB8400000 : Common Memory
95 * 0xB8500000 : Attribute
96 * 0xB8600000 : I/O
97 *
98 * about MS7722SE
99 * 0xB0400000 : Common Memory
100 * 0xB0500000 : Attribute
101 * 0xB0600000 : I/O
102 */
103
104#if defined(CONFIG_SH_SOLUTION_ENGINE) || \
105 defined(CONFIG_SH_7722_SOLUTION_ENGINE) || \
106 defined(CONFIG_SH_7721_SOLUTION_ENGINE)
107static int __init cf_init_se(void)
108{
109 if ((ctrl_inw(MRSHPC_CSR) & 0x000c) != 0)
110 return 0; /* Not detected */
111
112 if ((ctrl_inw(MRSHPC_CSR) & 0x0080) == 0) {
113 ctrl_outw(0x0674, MRSHPC_CPWCR); /* Card Vcc is 3.3v? */
114 } else {
115 ctrl_outw(0x0678, MRSHPC_CPWCR); /* Card Vcc is 5V */
116 }
117
118 /*
119 * PC-Card window open
120 * flag == COMMON/ATTRIBUTE/IO
121 */
122 /* common window open */
123 ctrl_outw(0x8a84, MRSHPC_MW0CR1);
124 if((ctrl_inw(MRSHPC_CSR) & 0x4000) != 0)
125 /* common mode & bus width 16bit SWAP = 1*/
126 ctrl_outw(0x0b00, MRSHPC_MW0CR2);
127 else
128 /* common mode & bus width 16bit SWAP = 0*/
129 ctrl_outw(0x0300, MRSHPC_MW0CR2);
130
131 /* attribute window open */
132 ctrl_outw(0x8a85, MRSHPC_MW1CR1);
133 if ((ctrl_inw(MRSHPC_CSR) & 0x4000) != 0)
134 /* attribute mode & bus width 16bit SWAP = 1*/
135 ctrl_outw(0x0a00, MRSHPC_MW1CR2);
136 else
137 /* attribute mode & bus width 16bit SWAP = 0*/
138 ctrl_outw(0x0200, MRSHPC_MW1CR2);
139
140 /* I/O window open */
141 ctrl_outw(0x8a86, MRSHPC_IOWCR1);
142 ctrl_outw(0x0008, MRSHPC_CDCR); /* I/O card mode */
143 if ((ctrl_inw(MRSHPC_CSR) & 0x4000) != 0)
144 ctrl_outw(0x0a00, MRSHPC_IOWCR2); /* bus width 16bit SWAP = 1*/
145 else
146 ctrl_outw(0x0200, MRSHPC_IOWCR2); /* bus width 16bit SWAP = 0*/
147
148 ctrl_outw(0x2000, MRSHPC_ICR);
149 ctrl_outb(0x00, PA_MRSHPC_MW2 + 0x206);
150 ctrl_outb(0x42, PA_MRSHPC_MW2 + 0x200);
151 return 0;
152}
153#else
154static int __init cf_init_se(void)
155{
156 return -1;
157}
158#endif
159
160static int __init cf_init(void)
161{
162 if (mach_is_se() || mach_is_7722se() || mach_is_7721se())
163 return cf_init_se();
164
165 return cf_init_default();
166}
167
168__initcall (cf_init);
generated by cgit v1.2.2 (git 2.25.0) at 2026-01-07 20:30:54 -0500