aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/mtd/maps/omap_nor.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/mtd/maps/omap_nor.c')
-rw-r--r--drivers/mtd/maps/omap_nor.c188
1 files changed, 0 insertions, 188 deletions
diff --git a/drivers/mtd/maps/omap_nor.c b/drivers/mtd/maps/omap_nor.c
index ead0b2fab670..e69de29bb2d1 100644
--- a/drivers/mtd/maps/omap_nor.c
+++ b/drivers/mtd/maps/omap_nor.c
@@ -1,188 +0,0 @@
1/*
2 * Flash memory support for various TI OMAP boards
3 *
4 * Copyright (C) 2001-2002 MontaVista Software Inc.
5 * Copyright (C) 2003-2004 Texas Instruments
6 * Copyright (C) 2004 Nokia Corporation
7 *
8 * Assembled using driver code copyright the companies above
9 * and written by David Brownell, Jian Zhang <jzhang@ti.com>,
10 * Tony Lindgren <tony@atomide.com> and others.
11 *
12 * This program is free software; you can redistribute it and/or modify it
13 * under the terms of the GNU General Public License as published by the
14 * Free Software Foundation; either version 2 of the License, or (at your
15 * option) any later version.
16 *
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
20 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
23 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
24 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * You should have received a copy of the GNU General Public License along
29 * with this program; if not, write to the Free Software Foundation, Inc.,
30 * 675 Mass Ave, Cambridge, MA 02139, USA.
31 */
32
33#include <linux/platform_device.h>
34#include <linux/module.h>
35#include <linux/types.h>
36#include <linux/kernel.h>
37#include <linux/init.h>
38#include <linux/ioport.h>
39#include <linux/slab.h>
40
41#include <linux/mtd/mtd.h>
42#include <linux/mtd/map.h>
43#include <linux/mtd/partitions.h>
44
45#include <asm/io.h>
46#include <mach/hardware.h>
47#include <asm/mach/flash.h>
48#include <plat/tc.h>
49
50#ifdef CONFIG_MTD_PARTITIONS
51static const char *part_probes[] = { /* "RedBoot", */ "cmdlinepart", NULL };
52#endif
53
54struct omapflash_info {
55 struct mtd_partition *parts;
56 struct mtd_info *mtd;
57 struct map_info map;
58};
59
60static void omap_set_vpp(struct map_info *map, int enable)
61{
62 static int count;
63 u32 l;
64
65 if (cpu_class_is_omap1()) {
66 if (enable) {
67 if (count++ == 0) {
68 l = omap_readl(EMIFS_CONFIG);
69 l |= OMAP_EMIFS_CONFIG_WP;
70 omap_writel(l, EMIFS_CONFIG);
71 }
72 } else {
73 if (count && (--count == 0)) {
74 l = omap_readl(EMIFS_CONFIG);
75 l &= ~OMAP_EMIFS_CONFIG_WP;
76 omap_writel(l, EMIFS_CONFIG);
77 }
78 }
79 }
80}
81
82static int __init omapflash_probe(struct platform_device *pdev)
83{
84 int err;
85 struct omapflash_info *info;
86 struct flash_platform_data *pdata = pdev->dev.platform_data;
87 struct resource *res = pdev->resource;
88 unsigned long size = res->end - res->start + 1;
89
90 info = kzalloc(sizeof(struct omapflash_info), GFP_KERNEL);
91 if (!info)
92 return -ENOMEM;
93
94 if (!request_mem_region(res->start, size, "flash")) {
95 err = -EBUSY;
96 goto out_free_info;
97 }
98
99 info->map.virt = ioremap(res->start, size);
100 if (!info->map.virt) {
101 err = -ENOMEM;
102 goto out_release_mem_region;
103 }
104 info->map.name = dev_name(&pdev->dev);
105 info->map.phys = res->start;
106 info->map.size = size;
107 info->map.bankwidth = pdata->width;
108 info->map.set_vpp = omap_set_vpp;
109
110 simple_map_init(&info->map);
111 info->mtd = do_map_probe(pdata->map_name, &info->map);
112 if (!info->mtd) {
113 err = -EIO;
114 goto out_iounmap;
115 }
116 info->mtd->owner = THIS_MODULE;
117
118 info->mtd->dev.parent = &pdev->dev;
119
120#ifdef CONFIG_MTD_PARTITIONS
121 err = parse_mtd_partitions(info->mtd, part_probes, &info->parts, 0);
122 if (err > 0)
123 add_mtd_partitions(info->mtd, info->parts, err);
124 else if (err <= 0 && pdata->parts)
125 add_mtd_partitions(info->mtd, pdata->parts, pdata->nr_parts);
126 else
127#endif
128 add_mtd_device(info->mtd);
129
130 platform_set_drvdata(pdev, info);
131
132 return 0;
133
134out_iounmap:
135 iounmap(info->map.virt);
136out_release_mem_region:
137 release_mem_region(res->start, size);
138out_free_info:
139 kfree(info);
140
141 return err;
142}
143
144static int __exit omapflash_remove(struct platform_device *pdev)
145{
146 struct omapflash_info *info = platform_get_drvdata(pdev);
147
148 platform_set_drvdata(pdev, NULL);
149
150 if (info) {
151 if (info->parts) {
152 del_mtd_partitions(info->mtd);
153 kfree(info->parts);
154 } else
155 del_mtd_device(info->mtd);
156 map_destroy(info->mtd);
157 release_mem_region(info->map.phys, info->map.size);
158 iounmap((void __iomem *) info->map.virt);
159 kfree(info);
160 }
161
162 return 0;
163}
164
165static struct platform_driver omapflash_driver = {
166 .remove = __exit_p(omapflash_remove),
167 .driver = {
168 .name = "omapflash",
169 .owner = THIS_MODULE,
170 },
171};
172
173static int __init omapflash_init(void)
174{
175 return platform_driver_probe(&omapflash_driver, omapflash_probe);
176}
177
178static void __exit omapflash_exit(void)
179{
180 platform_driver_unregister(&omapflash_driver);
181}
182
183module_init(omapflash_init);
184module_exit(omapflash_exit);
185
186MODULE_LICENSE("GPL");
187MODULE_DESCRIPTION("MTD NOR map driver for TI OMAP boards");
188MODULE_ALIAS("platform:omapflash");
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-18 08:12:56 -0500