aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/mtd/maps/ebony.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/mtd/maps/ebony.c')
-rw-r--r--drivers/mtd/maps/ebony.c163
1 files changed, 0 insertions, 163 deletions
diff --git a/drivers/mtd/maps/ebony.c b/drivers/mtd/maps/ebony.c
deleted file mode 100644
index d92b7c70d3ed..000000000000
--- a/drivers/mtd/maps/ebony.c
+++ /dev/null
@@ -1,163 +0,0 @@
1/*
2 * Mapping for Ebony user flash
3 *
4 * Matt Porter <mporter@kernel.crashing.org>
5 *
6 * Copyright 2002-2004 MontaVista Software Inc.
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 */
13
14#include <linux/module.h>
15#include <linux/types.h>
16#include <linux/kernel.h>
17#include <linux/init.h>
18#include <linux/mtd/mtd.h>
19#include <linux/mtd/map.h>
20#include <linux/mtd/partitions.h>
21#include <asm/io.h>
22#include <asm/ibm44x.h>
23#include <platforms/4xx/ebony.h>
24
25static struct mtd_info *flash;
26
27static struct map_info ebony_small_map = {
28 .name = "Ebony small flash",
29 .size = EBONY_SMALL_FLASH_SIZE,
30 .bankwidth = 1,
31};
32
33static struct map_info ebony_large_map = {
34 .name = "Ebony large flash",
35 .size = EBONY_LARGE_FLASH_SIZE,
36 .bankwidth = 1,
37};
38
39static struct mtd_partition ebony_small_partitions[] = {
40 {
41 .name = "OpenBIOS",
42 .offset = 0x0,
43 .size = 0x80000,
44 }
45};
46
47static struct mtd_partition ebony_large_partitions[] = {
48 {
49 .name = "fs",
50 .offset = 0,
51 .size = 0x380000,
52 },
53 {
54 .name = "firmware",
55 .offset = 0x380000,
56 .size = 0x80000,
57 }
58};
59
60int __init init_ebony(void)
61{
62 u8 fpga0_reg;
63 u8 __iomem *fpga0_adr;
64 unsigned long long small_flash_base, large_flash_base;
65
66 fpga0_adr = ioremap64(EBONY_FPGA_ADDR, 16);
67 if (!fpga0_adr)
68 return -ENOMEM;
69
70 fpga0_reg = readb(fpga0_adr);
71 iounmap(fpga0_adr);
72
73 if (EBONY_BOOT_SMALL_FLASH(fpga0_reg) &&
74 !EBONY_FLASH_SEL(fpga0_reg))
75 small_flash_base = EBONY_SMALL_FLASH_HIGH2;
76 else if (EBONY_BOOT_SMALL_FLASH(fpga0_reg) &&
77 EBONY_FLASH_SEL(fpga0_reg))
78 small_flash_base = EBONY_SMALL_FLASH_HIGH1;
79 else if (!EBONY_BOOT_SMALL_FLASH(fpga0_reg) &&
80 !EBONY_FLASH_SEL(fpga0_reg))
81 small_flash_base = EBONY_SMALL_FLASH_LOW2;
82 else
83 small_flash_base = EBONY_SMALL_FLASH_LOW1;
84
85 if (EBONY_BOOT_SMALL_FLASH(fpga0_reg) &&
86 !EBONY_ONBRD_FLASH_EN(fpga0_reg))
87 large_flash_base = EBONY_LARGE_FLASH_LOW;
88 else
89 large_flash_base = EBONY_LARGE_FLASH_HIGH;
90
91 ebony_small_map.phys = small_flash_base;
92 ebony_small_map.virt = ioremap64(small_flash_base,
93 ebony_small_map.size);
94
95 if (!ebony_small_map.virt) {
96 printk("Failed to ioremap flash\n");
97 return -EIO;
98 }
99
100 simple_map_init(&ebony_small_map);
101
102 flash = do_map_probe("jedec_probe", &ebony_small_map);
103 if (flash) {
104 flash->owner = THIS_MODULE;
105 add_mtd_partitions(flash, ebony_small_partitions,
106 ARRAY_SIZE(ebony_small_partitions));
107 } else {
108 printk("map probe failed for flash\n");
109 iounmap(ebony_small_map.virt);
110 return -ENXIO;
111 }
112
113 ebony_large_map.phys = large_flash_base;
114 ebony_large_map.virt = ioremap64(large_flash_base,
115 ebony_large_map.size);
116
117 if (!ebony_large_map.virt) {
118 printk("Failed to ioremap flash\n");
119 iounmap(ebony_small_map.virt);
120 return -EIO;
121 }
122
123 simple_map_init(&ebony_large_map);
124
125 flash = do_map_probe("jedec_probe", &ebony_large_map);
126 if (flash) {
127 flash->owner = THIS_MODULE;
128 add_mtd_partitions(flash, ebony_large_partitions,
129 ARRAY_SIZE(ebony_large_partitions));
130 } else {
131 printk("map probe failed for flash\n");
132 iounmap(ebony_small_map.virt);
133 iounmap(ebony_large_map.virt);
134 return -ENXIO;
135 }
136
137 return 0;
138}
139
140static void __exit cleanup_ebony(void)
141{
142 if (flash) {
143 del_mtd_partitions(flash);
144 map_destroy(flash);
145 }
146
147 if (ebony_small_map.virt) {
148 iounmap(ebony_small_map.virt);
149 ebony_small_map.virt = NULL;
150 }
151
152 if (ebony_large_map.virt) {
153 iounmap(ebony_large_map.virt);
154 ebony_large_map.virt = NULL;
155 }
156}
157
158module_init(init_ebony);
159module_exit(cleanup_ebony);
160
161MODULE_LICENSE("GPL");
162MODULE_AUTHOR("Matt Porter <mporter@kernel.crashing.org>");
163MODULE_DESCRIPTION("MTD map and partitions for IBM 440GP Ebony boards");