1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * SPDX-License-Identifier: BSD-2-Clause 5 */ 6 7 #ifndef __ANDROID_BOOTLOADER_H 8 #define __ANDROID_BOOTLOADER_H 9 10 #include <common.h> 11 12 enum android_boot_mode { 13 ANDROID_BOOT_MODE_NORMAL = 0, 14 15 /* "recovery" mode is triggered by the "reboot recovery" command or 16 * equivalent adb/fastboot command. It can also be triggered by writing 17 * "boot-recovery" in the BCB message. This mode should boot the 18 * recovery kernel. 19 */ 20 ANDROID_BOOT_MODE_RECOVERY, 21 22 /* "bootloader" mode is triggered by the "reboot bootloader" command or 23 * equivalent adb/fastboot command. It can also be triggered by writing 24 * "bootonce-bootloader" in the BCB message. This mode should boot into 25 * fastboot. 26 */ 27 ANDROID_BOOT_MODE_BOOTLOADER, 28 }; 29 30 /** android_bootloader_boot_flow - Execute the Android Bootloader Flow. 31 * Performs the Android Bootloader boot flow, loading the appropriate Android 32 * image (normal kernel, recovery kernel or "bootloader" mode) and booting it. 33 * The boot mode is determined by the contents of the Android Bootloader 34 * Message. On success it doesn't return. 35 * 36 * @dev_desc: device where to load the kernel and system to boot from. 37 * @misc_part_info: the "misc" partition descriptor in 'dev_desc'. 38 * @slot: the boot slot to boot from. 39 * @kernel_address: address where to load the kernel if needed. 40 * 41 * @return a negative number in case of error, otherwise it doesn't return. 42 */ 43 int android_bootloader_boot_flow(struct blk_desc *dev_desc, 44 const disk_partition_t *misc_part_info, 45 const char *slot, 46 unsigned long kernel_address); 47 48 #endif /* __ANDROID_BOOTLOADER_H */ 49
