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spl: dfu: add dfu support in SPL

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Traditionally the DFU support is available only
as part 2nd stage boot loader(u-boot) and DFU
is not supported in SPL.

The SPL-DFU feature is useful for boards which
does not have MMC/SD, ethernet boot mechanism
to boot the board and only has USB inteface.

This patch add DFU support in SPL with RAM
memory device support to load and execute u-boot.
And then leverage full functionality DFU in
u-boot to flash boot inital binary images to
factory or bare-metal boards to memory devices
like SPI, eMMC, MMC/SD card using USB interface.

This SPL-DFU support can be enabled through
Menuconfig->Boot Images->Enable SPL-DFU support

Signed-off-by: Ravi Babu <ravibabu@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
B, Ravi
2016-07-28 17:39:14 +05:30
committed by Marek Vasut
parent e915716a5c
commit bc5dbcb918
3 changed files with 32 additions and 0 deletions
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4
scripts/Makefile.spl
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@@ -66,6 +66,10 @@ endif
libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
libs-y += drivers/
libs-$(CONFIG_SPL_DFU_SUPPORT) += drivers/dfu/
libs-$(CONFIG_SPL_DFU_SUPPORT) += drivers/usb/gadget/
libs-$(CONFIG_SPL_DFU_SUPPORT) += drivers/usb/gadget/udc/
libs-$(CONFIG_SPL_DFU_SUPPORT) += drivers/usb/dwc3/
libs-y += dts/
libs-y += fs/
libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/