diff options
| -rw-r--r-- | drivers/fastboot/Kconfig | 12 | ||||
| -rw-r--r-- | drivers/fastboot/Makefile | 1 | ||||
| -rw-r--r-- | drivers/fastboot/fb_bcb_impl.c | 43 | ||||
| -rw-r--r-- | include/fastboot.h | 9 |
4 files changed, 65 insertions, 0 deletions
diff --git a/drivers/fastboot/Kconfig b/drivers/fastboot/Kconfig index d4436dfc91..4352ba67a7 100644 --- a/drivers/fastboot/Kconfig +++ b/drivers/fastboot/Kconfig @@ -165,6 +165,18 @@ config FASTBOOT_CMD_OEM_FORMAT relies on the env variable partitions to contain the list of partitions as required by the gpt command. +config FASTBOOT_USE_BCB_SET_REBOOT_FLAG + bool "Use BCB by fastboot to set boot reason" + depends on CMD_BCB && !ARCH_MESON && !ARCH_ROCKCHIP && !TARGET_KC1 && \ + !TARGET_SNIPER && !TARGET_AM57XX_EVM && !TARGET_DRA7XX_EVM + default y + help + Fastboot could implement setting of reboot reason in a generic fashion + via BCB commands. BCB commands are able to write reboot reason into + command field of boot control block. In general case it is sufficient + implementation if your platform supports BCB commands and doesn't + require any specific reboot reason handling. + endif # FASTBOOT endmenu diff --git a/drivers/fastboot/Makefile b/drivers/fastboot/Makefile index 048af5aa82..2b2c390fe4 100644 --- a/drivers/fastboot/Makefile +++ b/drivers/fastboot/Makefile @@ -5,3 +5,4 @@ obj-y += fb_getvar.o obj-y += fb_command.o obj-$(CONFIG_FASTBOOT_FLASH_MMC) += fb_mmc.o obj-$(CONFIG_FASTBOOT_FLASH_NAND) += fb_nand.o +obj-$(CONFIG_FASTBOOT_USE_BCB_SET_REBOOT_FLAG) += fb_bcb_impl.o diff --git a/drivers/fastboot/fb_bcb_impl.c b/drivers/fastboot/fb_bcb_impl.c new file mode 100644 index 0000000000..89ec3601b6 --- /dev/null +++ b/drivers/fastboot/fb_bcb_impl.c @@ -0,0 +1,43 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2020 GlobalLogic. + * Roman Kovalivskyi <roman.kovalivskyi@globallogic.com> + */ + +#include <common.h> +#include <fastboot.h> + +/** + * fastboot_set_reboot_flag() - Set flag to indicate reboot-bootloader + * + * Set flag which indicates that we should reboot into the bootloader + * following the reboot that fastboot executes after this function. + * + * This function should be overridden in your board file with one + * which sets whatever flag your board specific Android bootloader flow + * requires in order to re-enter the bootloader. + */ +int fastboot_set_reboot_flag(enum fastboot_reboot_reason reason) +{ + char cmd[64]; + + if (reason >= FASTBOOT_REBOOT_REASONS_COUNT) + return -EINVAL; + + snprintf(cmd, sizeof(cmd), "bcb load %d misc", + CONFIG_FASTBOOT_FLASH_MMC_DEV); + + if (run_command(cmd, 0)) + return -ENODEV; + + snprintf(cmd, sizeof(cmd), "bcb set command %s", + fastboot_boot_cmds[reason]); + + if (run_command(cmd, 0)) + return -ENOEXEC; + + if (run_command("bcb store", 0)) + return -EIO; + + return 0; +} diff --git a/include/fastboot.h b/include/fastboot.h index b86b508e69..8e9ee80907 100644 --- a/include/fastboot.h +++ b/include/fastboot.h @@ -53,6 +53,15 @@ enum fastboot_reboot_reason { }; /** + * BCB boot commands + */ +static const char * const fastboot_boot_cmds[] = { + [FASTBOOT_REBOOT_REASON_BOOTLOADER] = "bootonce-bootloader", + [FASTBOOT_REBOOT_REASON_FASTBOOTD] = "boot-fastboot", + [FASTBOOT_REBOOT_REASON_RECOVERY] = "boot-recovery" +}; + +/** * fastboot_response() - Writes a response of the form "$tag$reason". * * @tag: The first part of the response |