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-rw-r--r--drivers/mtd/Kconfig3
-rw-r--r--drivers/mtd/maps/Makefile1
-rw-r--r--drivers/mtd/maps/integrator-flash.c309
3 files changed, 1 insertions, 312 deletions
diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig
index b4567c35a322..bc50d5ea5534 100644
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -148,8 +148,7 @@ config MTD_AFS_PARTS
148 148
149 You will still need the parsing functions to be called by the driver 149 You will still need the parsing functions to be called by the driver
150 for your particular device. It won't happen automatically. The 150 for your particular device. It won't happen automatically. The
151 'armflash' map driver (CONFIG_MTD_ARM_INTEGRATOR) does this, for 151 'physmap' map driver (CONFIG_MTD_PHYSMAP) does this, for example.
152 example.
153 152
154config MTD_OF_PARTS 153config MTD_OF_PARTS
155 def_bool y 154 def_bool y
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index 08533bd5cba7..5b5fa311cce1 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -8,7 +8,6 @@ endif
8 8
9# Chip mappings 9# Chip mappings
10obj-$(CONFIG_MTD_CDB89712) += cdb89712.o 10obj-$(CONFIG_MTD_CDB89712) += cdb89712.o
11obj-$(CONFIG_MTD_ARM_INTEGRATOR)+= integrator-flash.o
12obj-$(CONFIG_MTD_CFI_FLAGADM) += cfi_flagadm.o 11obj-$(CONFIG_MTD_CFI_FLAGADM) += cfi_flagadm.o
13obj-$(CONFIG_MTD_DC21285) += dc21285.o 12obj-$(CONFIG_MTD_DC21285) += dc21285.o
14obj-$(CONFIG_MTD_DILNETPC) += dilnetpc.o 13obj-$(CONFIG_MTD_DILNETPC) += dilnetpc.o
diff --git a/drivers/mtd/maps/integrator-flash.c b/drivers/mtd/maps/integrator-flash.c
deleted file mode 100644
index e22ff5adbbf4..000000000000
--- a/drivers/mtd/maps/integrator-flash.c
+++ /dev/null
@@ -1,309 +0,0 @@
1/*======================================================================
2
3 drivers/mtd/maps/integrator-flash.c: ARM Integrator flash map driver
4
5 Copyright (C) 2000 ARM Limited
6 Copyright (C) 2003 Deep Blue Solutions Ltd.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21
22 This is access code for flashes using ARM's flash partitioning
23 standards.
24
25======================================================================*/
26
27#include <linux/module.h>
28#include <linux/types.h>
29#include <linux/kernel.h>
30#include <linux/slab.h>
31#include <linux/ioport.h>
32#include <linux/platform_device.h>
33#include <linux/init.h>
34#include <linux/io.h>
35
36#include <linux/mtd/mtd.h>
37#include <linux/mtd/map.h>
38#include <linux/mtd/partitions.h>
39#include <linux/mtd/concat.h>
40
41#include <asm/mach/flash.h>
42#include <mach/hardware.h>
43#include <asm/system.h>
44
45struct armflash_subdev_info {
46 char *name;
47 struct mtd_info *mtd;
48 struct map_info map;
49 struct flash_platform_data *plat;
50};
51
52struct armflash_info {
53 struct resource *res;
54 struct mtd_partition *parts;
55 struct mtd_info *mtd;
56 int nr_subdev;
57 struct armflash_subdev_info subdev[0];
58};
59
60static void armflash_set_vpp(struct map_info *map, int on)
61{
62 struct armflash_subdev_info *info =
63 container_of(map, struct armflash_subdev_info, map);
64
65 if (info->plat && info->plat->set_vpp)
66 info->plat->set_vpp(on);
67}
68
69static const char *probes[] = { "cmdlinepart", "RedBoot", "afs", NULL };
70
71static int armflash_subdev_probe(struct armflash_subdev_info *subdev,
72 struct resource *res)
73{
74 struct flash_platform_data *plat = subdev->plat;
75 resource_size_t size = res->end - res->start + 1;
76 void __iomem *base;
77 int err = 0;
78
79 if (!request_mem_region(res->start, size, subdev->name)) {
80 err = -EBUSY;
81 goto out;
82 }
83
84 base = ioremap(res->start, size);
85 if (!base) {
86 err = -ENOMEM;
87 goto no_mem;
88 }
89
90 /*
91 * look for CFI based flash parts fitted to this board
92 */
93 subdev->map.size = size;
94 subdev->map.bankwidth = plat->width;
95 subdev->map.phys = res->start;
96 subdev->map.virt = base;
97 subdev->map.name = subdev->name;
98 subdev->map.set_vpp = armflash_set_vpp;
99
100 simple_map_init(&subdev->map);
101
102 /*
103 * Also, the CFI layer automatically works out what size
104 * of chips we have, and does the necessary identification
105 * for us automatically.
106 */
107 subdev->mtd = do_map_probe(plat->map_name, &subdev->map);
108 if (!subdev->mtd) {
109 err = -ENXIO;
110 goto no_device;
111 }
112
113 subdev->mtd->owner = THIS_MODULE;
114
115 /* Successful? */
116 if (err == 0)
117 return err;
118
119 if (subdev->mtd)
120 map_destroy(subdev->mtd);
121 no_device:
122 iounmap(base);
123 no_mem:
124 release_mem_region(res->start, size);
125 out:
126 return err;
127}
128
129static void armflash_subdev_remove(struct armflash_subdev_info *subdev)
130{
131 if (subdev->mtd)
132 map_destroy(subdev->mtd);
133 if (subdev->map.virt)
134 iounmap(subdev->map.virt);
135 kfree(subdev->name);
136 subdev->name = NULL;
137 release_mem_region(subdev->map.phys, subdev->map.size);
138}
139
140static int armflash_probe(struct platform_device *dev)
141{
142 struct flash_platform_data *plat = dev->dev.platform_data;
143 unsigned int size;
144 struct armflash_info *info;
145 int i, nr, err;
146
147 /* Count the number of devices */
148 for (nr = 0; ; nr++)
149 if (!platform_get_resource(dev, IORESOURCE_MEM, nr))
150 break;
151 if (nr == 0) {
152 err = -ENODEV;
153 goto out;
154 }
155
156 size = sizeof(struct armflash_info) +
157 sizeof(struct armflash_subdev_info) * nr;
158 info = kzalloc(size, GFP_KERNEL);
159 if (!info) {
160 err = -ENOMEM;
161 goto out;
162 }
163
164 if (plat && plat->init) {
165 err = plat->init();
166 if (err)
167 goto no_resource;
168 }
169
170 for (i = 0; i < nr; i++) {
171 struct armflash_subdev_info *subdev = &info->subdev[i];
172 struct resource *res;
173
174 res = platform_get_resource(dev, IORESOURCE_MEM, i);
175 if (!res)
176 break;
177
178 if (nr == 1)
179 /* No MTD concatenation, just use the default name */
180 subdev->name = kstrdup(dev_name(&dev->dev), GFP_KERNEL);
181 else
182 subdev->name = kasprintf(GFP_KERNEL, "%s-%d",
183 dev_name(&dev->dev), i);
184 if (!subdev->name) {
185 err = -ENOMEM;
186 break;
187 }
188 subdev->plat = plat;
189
190 err = armflash_subdev_probe(subdev, res);
191 if (err) {
192 kfree(subdev->name);
193 subdev->name = NULL;
194 break;
195 }
196 }
197 info->nr_subdev = i;
198
199 if (err)
200 goto subdev_err;
201
202 if (info->nr_subdev == 1)
203 info->mtd = info->subdev[0].mtd;
204 else if (info->nr_subdev > 1) {
205 struct mtd_info *cdev[info->nr_subdev];
206
207 /*
208 * We detected multiple devices. Concatenate them together.
209 */
210 for (i = 0; i < info->nr_subdev; i++)
211 cdev[i] = info->subdev[i].mtd;
212
213 info->mtd = mtd_concat_create(cdev, info->nr_subdev,
214 dev_name(&dev->dev));
215 if (info->mtd == NULL)
216 err = -ENXIO;
217 }
218
219 if (err < 0)
220 goto cleanup;
221
222 err = parse_mtd_partitions(info->mtd, probes, &info->parts, 0);
223 if (err > 0) {
224 err = add_mtd_partitions(info->mtd, info->parts, err);
225 if (err)
226 printk(KERN_ERR
227 "mtd partition registration failed: %d\n", err);
228 }
229
230 if (err == 0) {
231 platform_set_drvdata(dev, info);
232 return err;
233 }
234
235 /*
236 * We got an error, free all resources.
237 */
238 cleanup:
239 if (info->mtd) {
240 del_mtd_partitions(info->mtd);
241 if (info->mtd != info->subdev[0].mtd)
242 mtd_concat_destroy(info->mtd);
243 }
244 kfree(info->parts);
245 subdev_err:
246 for (i = info->nr_subdev - 1; i >= 0; i--)
247 armflash_subdev_remove(&info->subdev[i]);
248 no_resource:
249 if (plat && plat->exit)
250 plat->exit();
251 kfree(info);
252 out:
253 return err;
254}
255
256static int armflash_remove(struct platform_device *dev)
257{
258 struct armflash_info *info = platform_get_drvdata(dev);
259 struct flash_platform_data *plat = dev->dev.platform_data;
260 int i;
261
262 platform_set_drvdata(dev, NULL);
263
264 if (info) {
265 if (info->mtd) {
266 del_mtd_partitions(info->mtd);
267 if (info->mtd != info->subdev[0].mtd)
268 mtd_concat_destroy(info->mtd);
269 }
270 kfree(info->parts);
271
272 for (i = info->nr_subdev - 1; i >= 0; i--)
273 armflash_subdev_remove(&info->subdev[i]);
274
275 if (plat && plat->exit)
276 plat->exit();
277
278 kfree(info);
279 }
280
281 return 0;
282}
283
284static struct platform_driver armflash_driver = {
285 .probe = armflash_probe,
286 .remove = armflash_remove,
287 .driver = {
288 .name = "armflash",
289 .owner = THIS_MODULE,
290 },
291};
292
293static int __init armflash_init(void)
294{
295 return platform_driver_register(&armflash_driver);
296}
297
298static void __exit armflash_exit(void)
299{
300 platform_driver_unregister(&armflash_driver);
301}
302
303module_init(armflash_init);
304module_exit(armflash_exit);
305
306MODULE_AUTHOR("ARM Ltd");
307MODULE_DESCRIPTION("ARM Integrator CFI map driver");
308MODULE_LICENSE("GPL");
309MODULE_ALIAS("platform:armflash");
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-14 22:29:22 -0500