adm5120: add 3.3 support

Partially based on the 3.1 patches by Hartmut Knaack <knaack.h [at] gmx.de>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31474 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 166 insertions, 0 deletions

diff --git a/target/linux/adm5120/patches-3.3/a13-adm5120_flash-3.3-fixes.patch b/target/linux/adm5120/patches-3.3/a13-adm5120_flash-3.3-fixes.patch
new file mode 100644
index 000000000..ea2e19f2c
--- /dev/null
+++ b/target/linux/adm5120/patches-3.3/a13-adm5120_flash-3.3-fixes.patch
@@ -0,0 +1,166 @@
+--- a/drivers/mtd/maps/adm5120-flash.c
++++ b/drivers/mtd/maps/adm5120-flash.c
+@@ -54,10 +54,6 @@ struct adm5120_flash_info {
+ 	struct resource		*res;
+ 	struct platform_device	*dev;
+ 	struct adm5120_map_info	amap;
+-#ifdef CONFIG_MTD_PARTITIONS
+-	int			nr_parts;
+-	struct mtd_partition	*parts[MAX_PARSED_PARTS];
+-#endif
+ };
+ 
+ struct flash_desc {
+@@ -96,7 +92,6 @@ static const char const *probe_types[] =
+ 	NULL
+ };
+ 
+-#ifdef CONFIG_MTD_PARTITIONS
+ static const char const *parse_types[] = {
+ 	"cmdlinepart",
+ #ifdef CONFIG_MTD_REDBOOT_PARTS
+@@ -106,7 +101,6 @@ static const char const *parse_types[] =
+ 	"MyLoader",
+ #endif
+ };
+-#endif
+ 
+ #define BANK_SIZE	(2<<20)
+ #define BANK_SIZE_MAX	(4<<20)
+@@ -318,89 +312,6 @@ static void adm5120_flash_initbanks(stru
+ 	info->mtd->size = info->amap.window_size;
+ }
+ 
+-#ifdef CONFIG_MTD_PARTITIONS
+-static int adm5120_flash_initparts(struct adm5120_flash_info *info)
+-{
+-	struct adm5120_flash_platform_data *pdata;
+-	struct map_info *map = &info->amap.map;
+-	int num_parsers;
+-	const char *parser[2];
+-	int err = 0;
+-	int nr_parts;
+-	int i;
+-
+-	info->nr_parts = 0;
+-
+-	pdata = info->dev->dev.platform_data;
+-	if (pdata == NULL)
+-		goto out;
+-
+-	if (pdata->nr_parts) {
+-		MAP_INFO(map, "adding static partitions\n");
+-		err = add_mtd_partitions(info->mtd, pdata->parts,
+-			pdata->nr_parts);
+-		if (err == 0) {
+-			info->nr_parts += pdata->nr_parts;
+-			goto out;
+-		}
+-	}
+-
+-	num_parsers = ARRAY_SIZE(parse_types);
+-	if (num_parsers > MAX_PARSED_PARTS)
+-		num_parsers = MAX_PARSED_PARTS;
+-
+-	parser[1] = NULL;
+-	for (i = 0; i < num_parsers; i++) {
+-		parser[0] = parse_types[i];
+-
+-		MAP_INFO(map, "parsing \"%s\" partitions\n",
+-			parser[0]);
+-		nr_parts = parse_mtd_partitions(info->mtd, parser,
+-			&info->parts[i], 0);
+-
+-		if (nr_parts <= 0)
+-			continue;
+-
+-		MAP_INFO(map, "adding \"%s\" partitions\n",
+-			parser[0]);
+-
+-		err = add_mtd_partitions(info->mtd, info->parts[i], nr_parts);
+-		if (err)
+-			break;
+-
+-		info->nr_parts += nr_parts;
+-	}
+-out:
+-	return err;
+-}
+-#else
+-static int adm5120_flash_initparts(struct adm5120_flash_info *info)
+-{
+-	return 0;
+-}
+-#endif /* CONFIG_MTD_PARTITIONS */
+-
+-#ifdef CONFIG_MTD_PARTITIONS
+-static void adm5120_flash_remove_mtd(struct adm5120_flash_info *info)
+-{
+-	int i;
+-
+-	if (info->nr_parts) {
+-		del_mtd_partitions(info->mtd);
+-		for (i = 0; i < MAX_PARSED_PARTS; i++)
+-			if (info->parts[i] != NULL)
+-				kfree(info->parts[i]);
+-	} else {
+-		del_mtd_device(info->mtd);
+-	}
+-}
+-#else
+-static void adm5120_flash_remove_mtd(struct adm5120_flash_info *info)
+-{
+-	del_mtd_device(info->mtd);
+-}
+-#endif
+-
+ static int adm5120_flash_remove(struct platform_device *dev)
+ {
+ 	struct adm5120_flash_info *info;
+@@ -412,7 +323,7 @@ static int adm5120_flash_remove(struct p
+ 	platform_set_drvdata(dev, NULL);
+ 
+ 	if (info->mtd != NULL) {
+-		adm5120_flash_remove_mtd(info);
++		mtd_device_unregister(info->mtd);
+ 		map_destroy(info->mtd);
+ 	}
+ 
+@@ -429,11 +340,18 @@ static int adm5120_flash_remove(struct p
+ 
+ static int adm5120_flash_probe(struct platform_device *dev)
+ {
++	struct adm5120_flash_platform_data *pdata;
+ 	struct adm5120_flash_info *info;
+ 	struct map_info *map;
+ 	const char **probe_type;
+ 	int err;
+ 
++	pdata = dev->dev.platform_data;
++	if (!pdata) {
++		dev_err(&dev->dev, "no platform data\n");
++		return -EINVAL;
++	}
++
+ 	info = kzalloc(sizeof(*info), GFP_KERNEL);
+ 	if (info == NULL) {
+ 		err = -ENOMEM;
+@@ -484,16 +402,11 @@ static int adm5120_flash_probe(struct pl
+ 
+ 	info->mtd->owner = THIS_MODULE;
+ 
+-	err = adm5120_flash_initparts(info);
++	err = mtd_device_parse_register(info->mtd, parse_types, 0,
++				  	pdata->parts, pdata->nr_parts);
+ 	if (err)
+ 		goto err_out;
+ 
+-	if (info->nr_parts == 0) {
+-		MAP_INFO(map, "no partitions available, registering "
+-			"whole flash\n");
+-		add_mtd_device(info->mtd);
+-	}
+-
+ 	return 0;
+ 
+ err_out: