[PATCH] configs: am335x_evm: Enable DFU over TFTP support

[Lokesh Vutla]

On 26/02/20 11:13 PM, Sam Protsenko wrote:
> 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 at gmail.com>

Applied to u-boot-ti next.

Thanks and regards,
Lokesh