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Commit 396afe55 authored by Rafał Miłecki's avatar Rafał Miłecki Committed by Artem Bityutskiy
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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: default avatarRafał Miłecki <zajec5@gmail.com>
parent 648bdbee

drivers/mtd/bcm47xxpart.c

+11 −0
Original line number Diff line number Diff line
@@ -61,6 +61,8 @@ static int bcm47xxpart_parse(struct mtd_info *master, 
	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 @@ static int bcm47xxpart_parse(struct mtd_info *master, 
		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 @@ static int bcm47xxpart_parse(struct mtd_info *master, 
					     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 @@ static int bcm47xxpart_parse(struct mtd_info *master, 
				       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;