diff options
| -rw-r--r-- | boot/Kconfig | 12 | ||||
| -rw-r--r-- | boot/Makefile | 2 | ||||
| -rw-r--r-- | boot/prog_boot.c | 51 | ||||
| -rw-r--r-- | common/main.c | 11 | ||||
| -rw-r--r-- | include/bootstd.h | 9 |
5 files changed, 85 insertions, 0 deletions
diff --git a/boot/Kconfig b/boot/Kconfig index ef71883a502..b438002059c 100644 --- a/boot/Kconfig +++ b/boot/Kconfig @@ -459,6 +459,18 @@ config BOOTSTD_BOOTCOMMAND standard boot does not support all of the features of distro boot yet. +config BOOTSTD_PROG + bool "Use programmatic boot" + depends on !CMDLINE + default y + help + Enable this to provide a board_run_command() function which can boot + a systen without using commands. If the boot fails, then U-Boot will + panic. + + Note: This currently has many limitations and is not a useful booting + solution. Future work will eventually make this a viable option. + config BOOTMETH_GLOBAL bool help diff --git a/boot/Makefile b/boot/Makefile index 3fd048bb41a..de0eafed14b 100644 --- a/boot/Makefile +++ b/boot/Makefile @@ -25,6 +25,8 @@ obj-$(CONFIG_$(SPL_TPL_)BOOTSTD) += bootflow.o obj-$(CONFIG_$(SPL_TPL_)BOOTSTD) += bootmeth-uclass.o obj-$(CONFIG_$(SPL_TPL_)BOOTSTD) += bootstd-uclass.o +obj-$(CONFIG_$(SPL_TPL_)BOOTSTD_PROG) += prog_boot.o + obj-$(CONFIG_$(SPL_TPL_)BOOTMETH_EXTLINUX) += bootmeth_extlinux.o obj-$(CONFIG_$(SPL_TPL_)BOOTMETH_EXTLINUX_PXE) += bootmeth_pxe.o obj-$(CONFIG_$(SPL_TPL_)BOOTMETH_EFILOADER) += bootmeth_efi.o diff --git a/boot/prog_boot.c b/boot/prog_boot.c new file mode 100644 index 00000000000..045554b93db --- /dev/null +++ b/boot/prog_boot.c @@ -0,0 +1,51 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2021 Google LLC + * Written by Simon Glass <sjg@chromium.org> + */ + +#define LOG_CATEGORY UCLASS_BOOTSTD + +#include <bootflow.h> +#include <bootstd.h> +#include <command.h> +#include <dm.h> + +/* + * show_bootmeths() - List available bootmeths + * + * We could refactor this to use do_bootmeth_list() if more detail (or ordering) + * are needed + */ +static void show_bootmeths(void) +{ + struct udevice *dev; + struct uclass *uc; + + printf("Bootmeths: "); + uclass_id_foreach_dev(UCLASS_BOOTMETH, dev, uc) + printf(" %s", dev->name); + printf("\n"); +} + +int bootstd_prog_boot(void) +{ + struct bootflow_iter iter; + struct bootflow bflow; + int ret, flags, i; + + printf("Programmatic boot starting\n"); + show_bootmeths(); + flags = BOOTFLOWIF_HUNT | BOOTFLOWIF_SHOW | BOOTFLOWIF_SKIP_GLOBAL; + + bootstd_clear_glob(); + for (i = 0, ret = bootflow_scan_first(NULL, NULL, &iter, flags, &bflow); + i < 1000 && ret != -ENODEV; + i++, ret = bootflow_scan_next(&iter, &bflow)) { + if (!bflow.err) + bootflow_run_boot(&iter, &bflow); + bootflow_free(&bflow); + } + + return -EFAULT; +} diff --git a/common/main.c b/common/main.c index 7c70de2e59a..6dba6cba144 100644 --- a/common/main.c +++ b/common/main.c @@ -9,6 +9,7 @@ #include <common.h> #include <autoboot.h> #include <bootstage.h> +#include <bootstd.h> #include <cli.h> #include <command.h> #include <console.h> @@ -67,6 +68,16 @@ void main_loop(void) autoboot_command(s); + /* if standard boot if enabled, assume that it will be able to boot */ + if (IS_ENABLED(CONFIG_BOOTSTD_PROG)) { + int ret; + + ret = bootstd_prog_boot(); + printf("Standard boot failed (err=%dE)\n", ret); + panic("Failed to boot"); + } + cli_loop(); + panic("No CLI available"); } diff --git a/include/bootstd.h b/include/bootstd.h index 7802564bcc6..99ce7b64e7c 100644 --- a/include/bootstd.h +++ b/include/bootstd.h @@ -94,4 +94,13 @@ int bootstd_get_priv(struct bootstd_priv **stdp); */ void bootstd_clear_glob(void); +/** + * bootstd_prog_boot() - Run standard boot in a fully programmatic mode + * + * Attempts to boot without making any use of U-Boot commands + * + * Returns: -ve error value (does not return except on failure to boot) + */ +int bootstd_prog_boot(void); + #endif |