1/* SPDX-License-Identifier: GPL-2.0+ */ 2/* 3 * Struct for boot image source description for placing in last 4 * two SPI NOR flash sectors on legcom. 5 */ 6 7struct boot_img_src { 8 u8 magic; /* Must be 'B' = 0x42 */ 9 u8 flags; /* flags to specify mmcblk[0|1] boot[0|1] */ 10 u8 crc8; /* CRC-8 over above two bytes */ 11} __packed; 12 13/* 14 * Bit definition in boot_img_src.flags: 15 * Bit 0: mmcblk device 0 or 1 (1 - if this bit set) 16 * Bit 1: mmcblk boot partition 0 or 1. 17 * for eMMC: boot0 if this bit is cleared, boot1 - if set 18 * for SD-card the boot partition value will always be 0 19 * (independent of the value of this bit) 20 * 21 */ 22#define BOOT_SRC_MMC1 BIT(0) 23#define BOOT_SRC_PART1 BIT(1) 24 25/* Offset of the first boot image source descriptor in SPI NOR */ 26#define SPI_FLASH_BOOT_SRC_OFFS 0xFE0000 27#define SPI_FLASH_SECTOR_SIZE 0x10000 28