X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/ec6d32f924ee9e6b4d58885d2f692c8c2a4a2773..a03a3970cf0c322c7aba3e7e179dd33a6588e9d9:/target/linux/adm5120/files/drivers/mtd/maps/adm5120-flash.c

diff --git a/target/linux/adm5120/files/drivers/mtd/maps/adm5120-flash.c b/target/linux/adm5120/files/drivers/mtd/maps/adm5120-flash.c
index e07fb96d2..c637c4ff0 100644
--- a/target/linux/adm5120/files/drivers/mtd/maps/adm5120-flash.c
+++ b/target/linux/adm5120/files/drivers/mtd/maps/adm5120-flash.c
@@ -10,20 +10,9 @@
  *	Copyright (C) 2003 MontaVista Software Inc.
  *	Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
  *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version 2
- *  of the License, or (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the
- *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- *  Boston, MA  02110-1301, USA.
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
  *
  */
 
@@ -220,14 +209,15 @@ static int adm5120_flash_initres(struct adm5120_flash_info *info)
 	struct map_info *map = &info->amap.map;
 	int err = 0;
 
-	info->res = request_mem_region(map->phys, map->size, map->name);
+	info->res = request_mem_region(map->phys, info->amap.window_size,
+			map->name);
 	if (info->res == NULL) {
 		MAP_ERR(map, "could not reserve memory region\n");
 		err = -ENOMEM;
 		goto out;
 	}
 
-	map->virt = ioremap_nocache(map->phys, map->size);
+	map->virt = ioremap_nocache(map->phys, info->amap.window_size);
 	if (map->virt == NULL) {
 		MAP_ERR(map, "failed to ioremap flash region\n");
 		err = -ENOMEM;
@@ -244,7 +234,7 @@ static int adm5120_flash_initinfo(struct adm5120_flash_info *info,
 	struct map_info *map = &info->amap.map;
 	struct adm5120_flash_platform_data *pdata = dev->dev.platform_data;
 	struct flash_desc *fdesc;
-	u32 t;
+	u32 t = 0;
 
 	map->name = dev->dev.bus_id;
 
@@ -255,12 +245,18 @@ static int adm5120_flash_initinfo(struct adm5120_flash_info *info,
 
 	fdesc = &flash_descs[dev->id];
 
-	/* get memory window size */
-	t = SW_READ_REG(MEMCTRL) >> fdesc->srs_shift;
-	t &= MEMCTRL_SRS_MASK;
-	info->amap.window_size = flash_sizes[t];
+	if (pdata)
+		info->amap.window_size = pdata->window_size;
+
+	if (info->amap.window_size == 0) {
+		/* get memory window size */
+		t = SW_READ_REG(SWITCH_REG_MEMCTRL) >> fdesc->srs_shift;
+		t &= MEMCTRL_SRS_MASK;
+		info->amap.window_size = flash_sizes[t];
+	}
+
 	if (info->amap.window_size == 0) {
-		MAP_ERR(map, "invalid flash size detected\n");
+		MAP_ERR(map, "unable to determine window size\n");
 		goto err_out;
 	}
 
@@ -570,6 +566,6 @@ static void __exit adm5120_flash_exit(void)
 module_init(adm5120_flash_init);
 module_exit(adm5120_flash_exit);
 
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
 MODULE_DESCRIPTION(DRV_DESC);