4a9acacf53
It it used by brcm47xx and bcm53xx targets, so put patches in generic. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> SVN-Revision: 42212
66 lines
1.9 KiB
Diff
66 lines
1.9 KiB
Diff
--- a/drivers/mtd/bcm47xxpart.c
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+++ b/drivers/mtd/bcm47xxpart.c
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@@ -36,6 +36,7 @@
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#define ML_MAGIC2 0x26594131
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#define TRX_MAGIC 0x30524448
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#define SQSH_MAGIC 0x71736873 /* shsq */
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+#define UBI_EC_MAGIC 0x23494255 /* UBI# */
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struct trx_header {
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uint32_t magic;
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@@ -46,7 +47,7 @@ struct trx_header {
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uint32_t offset[3];
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} __packed;
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-static void bcm47xxpart_add_part(struct mtd_partition *part, char *name,
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+static void bcm47xxpart_add_part(struct mtd_partition *part, const char *name,
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u64 offset, uint32_t mask_flags)
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{
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part->name = name;
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@@ -54,6 +55,26 @@ static void bcm47xxpart_add_part(struct
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part->mask_flags = mask_flags;
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}
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+static const char *bcm47xxpart_trx_data_part_name(struct mtd_info *master,
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+ size_t offset)
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+{
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+ uint32_t buf;
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+ size_t bytes_read;
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+
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+ if (mtd_read(master, offset, sizeof(&buf), &bytes_read,
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+ (uint8_t *)&buf) < 0) {
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+ pr_err("mtd_read error while parsing (offset: 0x%X)!\n",
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+ offset);
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+ goto out_default;
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+ }
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+
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+ if (buf == UBI_EC_MAGIC)
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+ return "ubi";
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+
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+out_default:
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+ return "rootfs";
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+}
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+
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static int bcm47xxpart_parse(struct mtd_info *master,
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struct mtd_partition **pparts,
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struct mtd_part_parser_data *data)
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@@ -147,6 +168,8 @@ static int bcm47xxpart_parse(struct mtd_
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/* TRX */
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if (buf[0x000 / 4] == TRX_MAGIC) {
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+ const char *name;
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+
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if (BCM47XXPART_MAX_PARTS - curr_part < 4) {
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pr_warn("Not enough partitions left to register trx, scanning stopped!\n");
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break;
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@@ -177,7 +200,9 @@ static int bcm47xxpart_parse(struct mtd_
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* trx->length - trx->offset[i]. We don't fill it as
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* we want to have jffs2 (overlay) in the same mtd.
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*/
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- bcm47xxpart_add_part(&parts[curr_part++], "rootfs",
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+ name = bcm47xxpart_trx_data_part_name(master,
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+ offset + trx->offset[i]);
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+ bcm47xxpart_add_part(&parts[curr_part++], name,
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offset + trx->offset[i], 0);
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i++;
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