mtd: bcm47xxpart: register extra "firmware" partition
It's required for accessing trx header (usually re-calculating a
checksum) and for writing a new firmware.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
diff --git a/drivers/mtd/bcm47xxpart.c b/drivers/mtd/bcm47xxpart.c
index 06125eb..3411bc2 100644
--- a/drivers/mtd/bcm47xxpart.c
+++ b/drivers/mtd/bcm47xxpart.c
@@ -61,6 +61,8 @@
uint32_t offset;
uint32_t blocksize = 0x10000;
struct trx_header *trx;
+ int trx_part = -1;
+ int last_trx_part = -1;
/* Alloc */
parts = kzalloc(sizeof(struct mtd_partition) * BCM47XXPART_MAX_PARTS,
@@ -131,6 +133,10 @@
if (buf[0x000 / 4] == TRX_MAGIC) {
trx = (struct trx_header *)buf;
+ trx_part = curr_part;
+ bcm47xxpart_add_part(&parts[curr_part++], "firmware",
+ offset, 0);
+
i = 0;
/* We have LZMA loader if offset[2] points to sth */
if (trx->offset[2]) {
@@ -154,6 +160,8 @@
offset + trx->offset[i], 0);
i++;
+ last_trx_part = curr_part - 1;
+
/*
* We have whole TRX scanned, skip to the next part. Use
* roundown (not roundup), as the loop will increase
@@ -174,6 +182,9 @@
parts[i + 1].offset : master->size;
parts[i].size = next_part_offset - parts[i].offset;
+ if (i == last_trx_part && trx_part >= 0)
+ parts[trx_part].size = next_part_offset -
+ parts[trx_part].offset;
}
*pparts = parts;