domenico/openwrt-18.06
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domenico
2025-06-24 15:51:28 +02:00
commit 22031d9dab
6862 changed files with 1462554 additions and 0 deletions
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94
target/linux/ar71xx/patches-4.9/401-mtd-physmap-add-lock-unlock.patch Normal file
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@@ -0,0 +1,94 @@
--- 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;