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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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27
Kconfig
View File

@ -291,6 +291,33 @@ config FIT_IMAGE_POST_PROCESS
injected into the FIT creation (i.e. the blobs would have been pre-
processed before being added to the FIT image).
config SPL_DFU_SUPPORT
bool "Enable SPL with DFU to load binaries to memory device"
depends on USB
help
Currently the SPL does not have capability to load the
binaries or boot images to boot devices like ram,eMMC,SPI,etc.
This feature enables the DFU (Device Firmware Upgarde) in SPL with
RAM memory device support. The ROM code will load and execute
the SPL built with dfu. The user can load binaries (u-boot/kernel) to
selected device partition from host-pc using dfu-utils.
This feature will be useful to flash the binaries to factory
or bare-metal boards using USB interface.
choice
bool "DFU device selection"
depends on SPL_DFU_SUPPORT
config SPL_DFU_RAM
bool "RAM device"
depends on SPL_DFU_SUPPORT
help
select RAM/DDR memory device for loading binary images
(u-boot/kernel) to the selected device partition using
DFU and execute the u-boot/kernel from RAM.
endchoice
config SYS_CLK_FREQ
depends on ARC || ARCH_SUNXI
int "CPU clock frequency"

1
common/Makefile
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@ -89,6 +89,7 @@ obj-$(CONFIG_USB_KEYBOARD) += usb_kbd.o
endif # !CONFIG_SPL_BUILD
ifdef CONFIG_SPL_BUILD
obj-$(CONFIG_SPL_DFU_SUPPORT) += cli_hush.o
obj-$(CONFIG_SPL_HASH_SUPPORT) += hash.o
obj-$(CONFIG_ENV_IS_IN_FLASH) += env_flash.o
obj-$(CONFIG_SPL_YMODEM_SUPPORT) += xyzModem.o

4
scripts/Makefile.spl
View File

@ -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/