1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * (C) Copyright 2019 Rockchip Electronics Co., Ltd 4 */ 5 6 #ifndef _SPL_AB_H_ 7 #define _SPL_AB_H_ 8 9 #include <spl.h> 10 #include <android_avb/libavb_ab.h> 11 #include <android_avb/avb_ab_flow.h> 12 13 #define AB_METADATA_OFFSET 4 14 15 /* 16 * spl_get_current_slot 17 * 18 * @dev_desc: block description 19 * @partition: partition name 20 * @slot: A/B slot 21 * 22 * return: 0 success, others fail. 23 */ 24 int spl_get_current_slot(struct blk_desc *dev_desc, char *partition, 25 char *slot); 26 27 /* 28 * spl_ab_append_part_slot 29 * 30 * @dev_desc: block description 31 * @part_name: partition name 32 * @new_name: append the slot suffix 33 * 34 * return: 0 success, others fail. 35 */ 36 int spl_ab_append_part_slot(struct blk_desc *dev_desc, 37 const char *part_name, 38 char *new_name); 39 40 /* 41 * spl_ab_decrease_tries 42 * 43 * @dev_desc: block description 44 * 45 * return: 0 success, others fail. 46 */ 47 int spl_ab_decrease_tries(struct blk_desc *dev_desc); 48 49 /* 50 * spl_ab_decrease_reset 51 * 52 * @dev_desc: block description 53 * 54 * return: 0 success, others fail. 55 */ 56 int spl_ab_decrease_reset(struct blk_desc *dev_desc); 57 58 /** 59 * Append ab slot info to bootargs 60 * 61 * @param fdt FDT address in memory 62 * @param slot slot info 63 * @return 0 if ok, else error 64 */ 65 int spl_ab_bootargs_append_slot(void *fdt, char *slot); 66 67 #endif 68