cmd: allow bootd without bootm

2026-08-22T00:01:01Z

do_bootd() runs the "bootcmd" environment variable through run_command() and does nothing else. It uses no bootm functionality, and neither does the "bootd" recursion guard in cmd_process(). doc/usage/cmd/bootd.rst documents it that way, with an example that sets bootcmd to "echo Hello World". Commit 1fd04cf46baf ("cmd: Correct dependencies for CMD_BOOTD") made CMD_BOOTD depend on CMD_BOOTM because the build fails otherwise: common/command.c is compiled unconditionally and references do_bootd(), whose definition sits in cmd/bootm.c, which is only compiled when CMD_BOOTM=y. The dependency therefore describes where the code lives rather than what it needs, and the boards that disable CMD_BOOTM (colibri_vf, iot_devkit, mx6memcal and r8a78000_ironhide_cm33) cannot offer "boot" or "bootd" at all, although the implementation would work there. Move do_bootd() and its two command registrations into cmd/bootd.c, compiled from CMD_BOOTD, and drop the artificial dependency. To leave every board in tree unchanged, CMD_BOOTD now defaults to y only when CMD_BOOTM is enabled, which is precisely the set of boards that have it today. Boards without bootm can enable it deliberately. Tested on sandbox: bootd, the "boot" alias, the return value taken from a failing bootcmd and the recursion guard all behave as before. Also tested on a Colibri VF50 (vf610) board built with CMD_BOOTM=n and CMD_BOOTD=y, a combination that could not be selected before: "boot" and "bootd" run bootcmd and bring up the OS, and a bootcmd of "false" returns 1. A colibri_vf_defconfig build with CMD_BOOTD left off is byte identical to the previous one apart from the version string; enabling CMD_BOOTD costs 272 bytes. Reviewed-by: Tom Rini Reviewed-by: Simon Glass Signed-off-by: Mehmet Fide

u-boot.git/cmd/bootd.c, branch next

cmd: allow bootd without bootm