/* SPDX-License-Identifier: GPL-2.0-only */ #include <boot_device.h> void __weak boot_device_init(void) { /* Provide weak do-nothing init. */ } int __weak boot_device_wp_region(const struct region_device *rd, const enum bootdev_prot_type type) { /* return a failure, make aware WP is not implemented */ return -1; } static int boot_device_subregion(const struct region *sub, struct region_device *subrd, const struct region_device *parent) { if (parent == NULL) return -1; return rdev_chain(subrd, parent, region_offset(sub), region_sz(sub)); } int boot_device_ro_subregion(const struct region *sub, struct region_device *subrd) { /* Ensure boot device has been initialized at least once. */ boot_device_init(); return boot_device_subregion(sub, subrd, boot_device_ro()); } int boot_device_rw_subregion(const struct region *sub, struct region_device *subrd) { /* Ensure boot device has been initialized at least once. */ boot_device_init(); return boot_device_subregion(sub, subrd, boot_device_rw()); }