dfu: add backend for MTD device
Add DFU backend for MTD device: allow to read
and write on all MTD device (NAND, SPI-NOR,
SPI-NAND,...)
For example :
> set dfu_alt_info "nand_raw raw 0x0 0x100000"
> dfu 0 mtd nand0
This MTD backend provides the same level than dfu nand
backend for NAND and dfu sf backend for SPI-NOR;
So it can replace booth of them but it also
add support of spi-nand.
> set dfu_alt_info "nand_raw raw 0x0 0x100000"
> dfu 0 mtd spi-nand0
The backend code is based on the "mtd" command
introduced by commit 5db66b3aee6f ("cmd: mtd:
add 'mtd' command")
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
diff --git a/doc/README.dfu b/doc/README.dfu
index d1ef7e4..96bced3 100644
--- a/doc/README.dfu
+++ b/doc/README.dfu
@@ -21,6 +21,7 @@
- NAND
- RAM
- SF (serial flash)
+ - MTD (all MTD device: NAND, SPI-NOR, SPI-NAND,...)
These DFU backends are also used by
- the dfutftp (see README.dfutftp)
@@ -30,6 +31,7 @@
CONFIG_DFU
CONFIG_DFU_OVER_USB
CONFIG_DFU_MMC
+ CONFIG_DFU_MTD
CONFIG_DFU_NAND
CONFIG_DFU_RAM
CONFIG_DFU_SF
@@ -104,6 +106,13 @@
with <partid> is the MTD partition index
+ "mtd" (all MTD device: NAND, SPI-NOR, SPI-NAND,...)
+ cmd: dfu 0 mtd <dev>
+ with <dev> the mtd identifier as defined in mtd command
+ (nand0, nor0, spi-nand0,...)
+ each element in "dfu_alt_info" =
+ <name> raw <offset> <size> raw access to mtd device
+
<interface> and <dev> are absent:
the dfu command to use multiple devices
cmd: dfu 0 list
@@ -114,6 +123,7 @@
nand <dev>=<alt1>;....;<altN>
ram <dev>=<alt1>;....;<altN>
sf <dev>=<alt1>;....;<altN>
+ mtd <dev>=<alt1>;....;<altN>
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