1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 3 #include <boot_device.h> 4 #include <spi_flash.h> 5 #include <stdint.h> 6 7 /* The ROM is memory mapped just below 4GiB. Form a pointer for the base. */ 8 #define rom_base ((void *)(uintptr_t)(0x100000000ULL-CONFIG_ROM_SIZE)) 9 10 static const struct mem_region_device boot_dev = 11 MEM_REGION_DEV_RO_INIT(rom_base, CONFIG_ROM_SIZE); 12 boot_device_ro(void)13const struct region_device *boot_device_ro(void) 14 { 15 return &boot_dev.rdev; 16 } 17 spi_flash_get_mmap_windows(struct flash_mmap_window * table)18uint32_t spi_flash_get_mmap_windows(struct flash_mmap_window *table) 19 { 20 table->flash_base = 0; 21 table->host_base = (uint32_t)(uintptr_t)rom_base; 22 table->size = CONFIG_ROM_SIZE; 23 24 return 1; 25 } 26