Hi Lukasz
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 has only USB inteface and do not have external interface like ethernet or MMC/SD to boot the board.
This patch add DFU support in SPL 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
Kconfig | 33 +++++++++++++++++++++++++++++++++ common/Makefile | 26 +++++++++++++++++++------- common/command.c | 2 +- scripts/Makefile.spl | 13 +++++++++++++ 4 files changed, 66 insertions(+), 8 deletions(-)
diff --git a/Kconfig b/Kconfig index f53759a..969641e 100644 --- a/Kconfig +++ b/Kconfig @@ -285,6 +285,39 @@ config SPL_LOAD_FIT particular it can handle selecting from multiple device tree and passing the correct one to U-Boot.
+config SPL_DFU
- bool "Enable SPL with DFU to load binaries to bootdevices
using USB"
- depends on USB && CMD_DFU && TARGET_DRA7XX_EVM
Is this dependency correct? Especially the CONFIG_CMD_DFU? As fair as I remember, we don't need "dfu" command to make SPL dfu working.
I do agree, I did not use cmd/dfu.c. Will clean it up.
What we do need are CONFIG_USB_GADGET_DOWNLOAD,CONFIG_USB_FUNCTION_THOR, CONFIG_USB_FUNCTION_DFU, etc.
Regards Ravi