DFU over TFTP flashing method might be helpful in order to speed-up the flashing process of big images (as DFU works over USB EP0, which is quite slow). Also, it's a good backup option in the case when USB got broken (either in software or hardware), to avoid resorting to SD card boot.

This config option was present in am335x_boneblack_defconfig, but we have to use generic am335x_evm_defconfig now, as BBB defconfig was removed in commit 8fa7f65dd02c ("configs: Remove am335x_boneblack_defconfig"). So this patch merely brings that option back.

Tested on BeagleBone Black:

=> setenv dfu_alt_info $dfu_alt_info_emmc => setenv ipaddr 192.168.0.100 => setenv serverip 192.168.0.1 => setenv updatefile update_uboot.itb => dfu tftp mmc 1

Where 'update_uboot.its' file looks like this:

/dts-v1/;

/ { description = "Automatic U-Boot update"; #address-cells = <1>;

images { u-boot.img.raw-1 { description = "U-Boot binary"; data = /incbin/("u-boot.img"); compression = "none"; type = "firmware"; load = <0x60000>; hash-1 { algo = "sha1"; }; }; }; };

And 'update_uboot.itb' is generated as follows:

$ mkimage -f update_uboot.its update_uboot.itb

Newly flashed U-Boot works fine.

Fixes: 8fa7f65dd02c ("configs: Remove am335x_boneblack_defconfig") Signed-off-by: Sam Protsenko joe.skb7@gmail.com --- configs/am335x_evm_defconfig | 1 + 1 file changed, 1 insertion(+)

diff --git a/configs/am335x_evm_defconfig b/configs/am335x_evm_defconfig index 8fd90a6f37..2fe9f86f1a 100644 --- a/configs/am335x_evm_defconfig +++ b/configs/am335x_evm_defconfig @@ -39,6 +39,7 @@ CONFIG_SPL_ENV_IS_NOWHERE=y CONFIG_BOOTCOUNT_LIMIT=y CONFIG_CLK=y CONFIG_CLK_CDCE9XX=y +CONFIG_DFU_TFTP=y CONFIG_DFU_MMC=y CONFIG_DFU_NAND=y CONFIG_DFU_RAM=y