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https://github.com/openwrt/openwrt.git
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7bbf4117c6
This add support for kernel 4.9 to the ar71xx target. It was compile tested with the generic, NAND and mikrotik subtarget. Multiple members of the community tested it on their boards and did not report any major problem so far. Especially the NAND part received some changes to adapt to the new kernel APIs. The serial driver hack used for the Arduino Yun was not ported because the kernel changed there a lot. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
95 lines
2.5 KiB
Diff
95 lines
2.5 KiB
Diff
--- a/drivers/mtd/maps/physmap.c
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+++ b/drivers/mtd/maps/physmap.c
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@@ -31,6 +31,66 @@ struct physmap_flash_info {
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int vpp_refcnt;
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};
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+static struct platform_device *physmap_map2pdev(struct map_info *map)
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+{
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+ return (struct platform_device *) map->map_priv_1;
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+}
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+
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+static void physmap_lock(struct map_info *map)
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+{
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+ struct platform_device *pdev;
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+ struct physmap_flash_data *physmap_data;
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+
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+ pdev = physmap_map2pdev(map);
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+ physmap_data = pdev->dev.platform_data;
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+ physmap_data->lock(pdev);
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+}
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+
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+static void physmap_unlock(struct map_info *map)
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+{
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+ struct platform_device *pdev;
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+ struct physmap_flash_data *physmap_data;
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+
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+ pdev = physmap_map2pdev(map);
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+ physmap_data = pdev->dev.platform_data;
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+ physmap_data->unlock(pdev);
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+}
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+
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+static map_word physmap_flash_read_lock(struct map_info *map, unsigned long ofs)
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+{
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+ map_word ret;
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+
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+ physmap_lock(map);
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+ ret = inline_map_read(map, ofs);
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+ physmap_unlock(map);
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+
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+ return ret;
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+}
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+
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+static void physmap_flash_write_lock(struct map_info *map, map_word d,
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+ unsigned long ofs)
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+{
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+ physmap_lock(map);
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+ inline_map_write(map, d, ofs);
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+ physmap_unlock(map);
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+}
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+
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+static void physmap_flash_copy_from_lock(struct map_info *map, void *to,
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+ unsigned long from, ssize_t len)
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+{
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+ physmap_lock(map);
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+ inline_map_copy_from(map, to, from, len);
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+ physmap_unlock(map);
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+}
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+
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+static void physmap_flash_copy_to_lock(struct map_info *map, unsigned long to,
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+ const void *from, ssize_t len)
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+{
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+ physmap_lock(map);
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+ inline_map_copy_to(map, to, from, len);
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+ physmap_unlock(map);
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+}
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+
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static int physmap_flash_remove(struct platform_device *dev)
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{
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struct physmap_flash_info *info;
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@@ -153,6 +213,13 @@ static int physmap_flash_probe(struct pl
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simple_map_init(&info->map[i]);
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+ if (physmap_data->lock && physmap_data->unlock) {
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+ info->map[i].read = physmap_flash_read_lock;
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+ info->map[i].write = physmap_flash_write_lock;
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+ info->map[i].copy_from = physmap_flash_copy_from_lock;
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+ info->map[i].copy_to = physmap_flash_copy_to_lock;
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+ }
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+
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probe_type = rom_probe_types;
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if (physmap_data->probe_type == NULL) {
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for (; info->mtd[i] == NULL && *probe_type != NULL; probe_type++)
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--- a/include/linux/mtd/physmap.h
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+++ b/include/linux/mtd/physmap.h
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@@ -25,6 +25,8 @@ struct physmap_flash_data {
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unsigned int width;
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int (*init)(struct platform_device *);
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void (*exit)(struct platform_device *);
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+ void (*lock)(struct platform_device *);
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+ void (*unlock)(struct platform_device *);
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void (*set_vpp)(struct platform_device *, int);
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unsigned int nr_parts;
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unsigned int pfow_base;
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