From bd90b092882099afa3786829036c82d6a4241fc8 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Tue, 17 Jan 2023 10:47:33 -0700 Subject: bootstd: Add the concept of a bootdev hunter Some bootdevs must be enumerated before they appear. For example, USB bootdevs are not visible until USB is enumerated. With standard boot this needs to happen automatically, since we only want to enumerate a bus if it is needed. Add a way to define bootdev 'hunters' which can be used to hunt for bootdevs of a given type. Track which ones have been used and add a command to list them. Include a clang work-around which seems to be needed. Signed-off-by: Simon Glass --- cmd/bootdev.c | 35 ++++++++++++++++++++++++++++++++--- 1 file changed, 32 insertions(+), 3 deletions(-) (limited to 'cmd/bootdev.c') diff --git a/cmd/bootdev.c b/cmd/bootdev.c index ecd797c0503..80bfe2812e4 100644 --- a/cmd/bootdev.c +++ b/cmd/bootdev.c @@ -107,14 +107,43 @@ static int do_bootdev_info(struct cmd_tbl *cmdtp, int flag, int argc, return 0; } +static int do_bootdev_hunt(struct cmd_tbl *cmdtp, int flag, int argc, + char *const argv[]) +{ + struct bootstd_priv *priv; + const char *spec = NULL; + bool list = false; + int ret = 0; + + if (argc >= 2) { + if (!strcmp(argv[1], "-l")) + list = true; + else + spec = argv[1]; + } + + ret = bootstd_get_priv(&priv); + if (ret) + return ret; + if (list) { + bootdev_list_hunters(priv); + } else { + /* TODO: implement hunting */ + } + + return 0; +} + #ifdef CONFIG_SYS_LONGHELP static char bootdev_help_text[] = - "list [-p] - list all available bootdevs (-p to probe)\n" - "bootdev select - select a bootdev by name | label | seq\n" - "bootdev info [-p] - show information about a bootdev (-p to probe)"; + "list [-p] - list all available bootdevs (-p to probe)\n" + "bootdev hunt [-l|] - use hunt drivers to find bootdevs\n" + "bootdev select - select a bootdev by name | label | seq\n" + "bootdev info [-p] - show information about a bootdev (-p to probe)"; #endif U_BOOT_CMD_WITH_SUBCMDS(bootdev, "Boot devices", bootdev_help_text, U_BOOT_SUBCMD_MKENT(list, 2, 1, do_bootdev_list), + U_BOOT_SUBCMD_MKENT(hunt, 2, 1, do_bootdev_hunt), U_BOOT_SUBCMD_MKENT(select, 2, 1, do_bootdev_select), U_BOOT_SUBCMD_MKENT(info, 2, 1, do_bootdev_info)); -- cgit v1.2.3