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authorMarc Zyngier <Marc.Zyngier@arm.com>2011-05-18 05:51:54 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-05-20 17:27:20 -0400
commitadf0040096e4b45b9d1c12f59f9045951178ca00 (patch)
tree7ecc4580a700b4fa34245ff9b0c39d9050351f41 /drivers/mtd/maps
parent046dfa0abd29ef2315c154754a22f4546d9d1e9c (diff)
ARM: 6906/1: MTD: Remove integrator-flash
As there is now no in-tree user of integrator-flash, remove it completely. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Acked-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/mtd/maps')
-rw-r--r--drivers/mtd/maps/Makefile1
-rw-r--r--drivers/mtd/maps/integrator-flash.c309
2 files changed, 0 insertions, 310 deletions
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");