You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
94 lines
2.5 KiB
94 lines
2.5 KiB
--- a/drivers/mtd/maps/physmap.c
|
|
+++ b/drivers/mtd/maps/physmap.c
|
|
@@ -31,6 +31,66 @@ struct physmap_flash_info {
|
|
int vpp_refcnt;
|
|
};
|
|
|
|
+static struct platform_device *physmap_map2pdev(struct map_info *map)
|
|
+{
|
|
+ return (struct platform_device *) map->map_priv_1;
|
|
+}
|
|
+
|
|
+static void physmap_lock(struct map_info *map)
|
|
+{
|
|
+ struct platform_device *pdev;
|
|
+ struct physmap_flash_data *physmap_data;
|
|
+
|
|
+ pdev = physmap_map2pdev(map);
|
|
+ physmap_data = pdev->dev.platform_data;
|
|
+ physmap_data->lock(pdev);
|
|
+}
|
|
+
|
|
+static void physmap_unlock(struct map_info *map)
|
|
+{
|
|
+ struct platform_device *pdev;
|
|
+ struct physmap_flash_data *physmap_data;
|
|
+
|
|
+ pdev = physmap_map2pdev(map);
|
|
+ physmap_data = pdev->dev.platform_data;
|
|
+ physmap_data->unlock(pdev);
|
|
+}
|
|
+
|
|
+static map_word physmap_flash_read_lock(struct map_info *map, unsigned long ofs)
|
|
+{
|
|
+ map_word ret;
|
|
+
|
|
+ physmap_lock(map);
|
|
+ ret = inline_map_read(map, ofs);
|
|
+ physmap_unlock(map);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+static void physmap_flash_write_lock(struct map_info *map, map_word d,
|
|
+ unsigned long ofs)
|
|
+{
|
|
+ physmap_lock(map);
|
|
+ inline_map_write(map, d, ofs);
|
|
+ physmap_unlock(map);
|
|
+}
|
|
+
|
|
+static void physmap_flash_copy_from_lock(struct map_info *map, void *to,
|
|
+ unsigned long from, ssize_t len)
|
|
+{
|
|
+ physmap_lock(map);
|
|
+ inline_map_copy_from(map, to, from, len);
|
|
+ physmap_unlock(map);
|
|
+}
|
|
+
|
|
+static void physmap_flash_copy_to_lock(struct map_info *map, unsigned long to,
|
|
+ const void *from, ssize_t len)
|
|
+{
|
|
+ physmap_lock(map);
|
|
+ inline_map_copy_to(map, to, from, len);
|
|
+ physmap_unlock(map);
|
|
+}
|
|
+
|
|
static int physmap_flash_remove(struct platform_device *dev)
|
|
{
|
|
struct physmap_flash_info *info;
|
|
@@ -153,6 +213,13 @@ static int physmap_flash_probe(struct pl
|
|
|
|
simple_map_init(&info->map[i]);
|
|
|
|
+ if (physmap_data->lock && physmap_data->unlock) {
|
|
+ info->map[i].read = physmap_flash_read_lock;
|
|
+ info->map[i].write = physmap_flash_write_lock;
|
|
+ info->map[i].copy_from = physmap_flash_copy_from_lock;
|
|
+ info->map[i].copy_to = physmap_flash_copy_to_lock;
|
|
+ }
|
|
+
|
|
probe_type = rom_probe_types;
|
|
if (physmap_data->probe_type == NULL) {
|
|
for (; info->mtd[i] == NULL && *probe_type != NULL; probe_type++)
|
|
--- a/include/linux/mtd/physmap.h
|
|
+++ b/include/linux/mtd/physmap.h
|
|
@@ -25,6 +25,8 @@ struct physmap_flash_data {
|
|
unsigned int width;
|
|
int (*init)(struct platform_device *);
|
|
void (*exit)(struct platform_device *);
|
|
+ void (*lock)(struct platform_device *);
|
|
+ void (*unlock)(struct platform_device *);
|
|
void (*set_vpp)(struct platform_device *, int);
|
|
unsigned int nr_parts;
|
|
unsigned int pfow_base;
|
|
|