Commit b3ba6e94 authored by Tom Rini's avatar Tom Rini Committed by Marek Vasut

README: Document current DFU CONFIG options

Add documentation for the current DFU config options.  DFU is a standard
USB device class so more information is available from usb.org
Signed-off-by: 's avatarTom Rini <trini@ti.com>
parent 645b271a
......@@ -1344,6 +1344,19 @@ The following options need to be configured:
CONFIG_SH_MMCIF_CLK
Define the clock frequency for MMCIF
- USB Device Firmware Update (DFU) class support:
CONFIG_DFU_FUNCTION
This enables the USB portion of the DFU USB class
CONFIG_CMD_DFU
This enables the command "dfu" which is used to have
U-Boot create a DFU class device via USB. This command
requires that the "dfu_alt_info" environment variable be
set and define the alt settings to expose to the host.
CONFIG_DFU_MMC
This enables support for exposing (e)MMC devices via DFU.
- Journaling Flash filesystem support:
CONFIG_JFFS2_NAND, CONFIG_JFFS2_NAND_OFF, CONFIG_JFFS2_NAND_SIZE,
CONFIG_JFFS2_NAND_DEV
......
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