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dfu: add partition support for MTD backend

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Add the support of MTD partition for the MTD backend.

The expected dfu_alt_info for one alternate on the mtd device :
	<name> part <part_id>
        <name> partubi <part_id>

"partubi" also erase up to the end of the partition after write operation.

For example: dfu_alt_info = "spl part 1;u-boot part 2; UBI partubi 3"

U-Boot> dfu 0 mtd nand0

Acked-by: Lukasz Majewski <lukma@denx.de>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
This commit is contained in:
Patrick Delaunay
2019-10-14 09:28:05 +02:00
committed by Marek Vasut
parent 6015af28ee
commit d5640f700d
3 changed files with 103 additions and 1 deletions
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21
doc/README.dfu
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@@ -112,6 +112,10 @@ Commands:
(nand0, nor0, spi-nand0,...)
each element in "dfu_alt_info" =
<name> raw <offset> <size> raw access to mtd device
<name> part <dev> <part_id> raw acces to partition
<name> partubi <dev> <part_id> raw acces to ubi partition
with <partid> is the MTD partition index
<interface> and <dev> are absent:
the dfu command to use multiple devices
@@ -209,3 +213,20 @@ Usage:
intf=0, alt=1, name="u-boot", serial="002700333338511934383330"
Found DFU: [0483:5720] ver=9999, devnum=96, cfg=1,\
intf=0, alt=0, name="spl", serial="002700333338511934383330"
Same example with MTD backend
U-Boot> env set dfu_alt_info \
"mtd nor0=spl part 1;u-boot part 2;u-boot-env part 3&"\
"mtd nand0=UBI partubi 1"
U-Boot> dfu 0 list
using id 'nor0,0'
using id 'nor0,1'
using id 'nor0,2'
using id 'nand0,0'
DFU alt settings list:
dev: MTD alt: 0 name: spl layout: RAW_ADDR
dev: MTD alt: 1 name: u-boot layout: RAW_ADDR
dev: MTD alt: 2 name: u-boot-env layout: RAW_ADDR
dev: MTD alt: 3 name: UBI layout: RAW_ADDR