On Wed, 07 Nov 2018 16:01:00 +0100 Marek Szyprowski m.szyprowski@samsung.com wrote:
Add possibility to define a part of partition as a separate DFU entity. This allows to have more than one items on the given partiton.
The real use case for this option is TM2 board. It can use u-boot stored as Linux kernel on the defined partiton (as RAW data) and load the real kernel from the same partition, but stored under the certain offset.
Signed-off-by: Marek Szyprowski m.szyprowski@samsung.com
drivers/dfu/dfu_mmc.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/dfu/dfu_mmc.c b/drivers/dfu/dfu_mmc.c index b45e6dc54c..826e70ffec 100644 --- a/drivers/dfu/dfu_mmc.c +++ b/drivers/dfu/dfu_mmc.c @@ -357,6 +357,7 @@ int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, char *s) struct blk_desc *blk_dev = mmc_get_blk_desc(mmc); int mmcdev = second_arg; int mmcpart = third_arg;
int offset = 0;if (part_get_info(blk_dev, mmcpart, &partinfo) != 0)
{ pr_err("Couldn't find part #%d on mmc device #%d\n", @@ -364,9 +365,17 @@ int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, char *s) return -ENODEV; }
/** Check for an extra entry at dfu_alt_info envvariable
* specifying the mmc HW defined partition number*/if (s)if (!strcmp(strsep(&s, " "), "offset"))offset = simple_strtoul(s, NULL, 0);- dfu->layout = DFU_RAW_ADDR;
dfu->data.mmc.lba_start =partinfo.start;
dfu->data.mmc.lba_size =partinfo.size;
dfu->data.mmc.lba_start =partinfo.start+offset;
dfu->data.mmc.lba_size =partinfo.size-offset; dfu->data.mmc.lba_blk_size = partinfo.blksz; } else if (!strcmp(entity_type, "fat")) { dfu->layout = DFU_FS_FAT;
Acked-by: Lukasz Majewski lukma@denx.de
Best regards,
Lukasz Majewski
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