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 adds DFU support in SPL to flash binary images to factory or bare-metal boards to memory devices like SPI, eMMC, MMC/SD card using USB interface. As a reference, refer to application note [3] on SPL-DFU support based on 2014.07 u-boot. Note: I could not find better option to isolate dfu source to include/exclude in Makefile when SPL-DFU feature enabled/disabled, please suggest any better option. Tested on dra7xx SoCs family. [1] is EVM console output with SPL-DFU/SPI enabled. [2] is ubuntu host console output. references: [1] http://pastebin.ubuntu.com/16730701/ [2] http://pastebin.ubuntu.com/16730765/ [3] http://www.ti.com/lit/an/sprac33/sprac33.pdf Ravi Babu (5): spl: dfu: add dfu support in SPL spl: dfu: fs: adding ext4/fat filesystem support for SPL-DFU spl: dfu: adding dfu support functions for SPL-DFU dfu: spl: add generic spl-dfu function in common-spl dra7x: spl: dfu: adding SPL-DFU support for dra7x platform Kconfig | 40 +++++++++++++++++++++++++++++++++++++ board/ti/dra7xx/evm.c | 20 +++++++++++++++++++ cmd/Makefile | 20 ++++++++++++++++++- common/Makefile | 32 ++++++++++++++++++++--------- common/command.c | 2 +- common/spl/spl.c | 11 ++++++++++ drivers/dfu/dfu.c | 28 ++++++++++++++++++++++++++ drivers/dfu/dfu_mmc.c | 28 ++++++++++++++++++++++++++ drivers/mmc/Makefile | 3 +-- drivers/mmc/mmc_private.h | 2 +- fs/Makefile | 12 ++++++++++- include/configs/dra7xx_evm.h | 3 +-- include/configs/ti_omap5_common.h | 2 -- include/dfu.h | 8 ++++++++ include/spl.h | 1 + scripts/Makefile.spl | 13 ++++++++++++ 16 files changed, 206 insertions(+), 19 deletions(-) -- 1.7.9.5 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
