mirror of
https://github.com/AsahiLinux/u-boot
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636da2039a
Enable the support for boot image header version 3 and 4 using abootimg command. In order to use version 3 or 4: 1- Vendor boot image address should be given to abootimg cmd. abootimg addr $1 $vendor_boot_load_addr 2- "ramdisk_addr_r" env variable (ramdisk address) should be set to host the ramdisk : generic ramdisk + vendor ramdisk Replace "struct andr_boot_img_hdr_v0*" by "void *" in some functions since v3 and v4 are now supported as well. Signed-off-by: Safae Ouajih <souajih@baylibre.com> Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> Tested-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
716 lines
18 KiB
C
716 lines
18 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2013, Google Inc.
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*
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* (C) Copyright 2008 Semihalf
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*
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* (C) Copyright 2000-2006
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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#include <common.h>
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#include <fdt_support.h>
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#include <fdtdec.h>
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#include <env.h>
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#include <errno.h>
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#include <image.h>
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#include <lmb.h>
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#include <log.h>
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#include <malloc.h>
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#include <asm/global_data.h>
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#include <linux/libfdt.h>
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#include <mapmem.h>
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#include <asm/io.h>
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#include <dm/ofnode.h>
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#include <tee/optee.h>
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/* adding a ramdisk needs 0x44 bytes in version 2008.10 */
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#define FDT_RAMDISK_OVERHEAD 0x80
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DECLARE_GLOBAL_DATA_PTR;
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static void fdt_error(const char *msg)
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{
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puts("ERROR: ");
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puts(msg);
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puts(" - must RESET the board to recover.\n");
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}
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#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
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static const struct legacy_img_hdr *image_get_fdt(ulong fdt_addr)
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{
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const struct legacy_img_hdr *fdt_hdr = map_sysmem(fdt_addr, 0);
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image_print_contents(fdt_hdr);
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puts(" Verifying Checksum ... ");
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if (!image_check_hcrc(fdt_hdr)) {
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fdt_error("fdt header checksum invalid");
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return NULL;
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}
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if (!image_check_dcrc(fdt_hdr)) {
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fdt_error("fdt checksum invalid");
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return NULL;
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}
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puts("OK\n");
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if (!image_check_type(fdt_hdr, IH_TYPE_FLATDT)) {
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fdt_error("uImage is not a fdt");
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return NULL;
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}
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if (image_get_comp(fdt_hdr) != IH_COMP_NONE) {
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fdt_error("uImage is compressed");
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return NULL;
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}
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if (fdt_check_header((void *)image_get_data(fdt_hdr)) != 0) {
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fdt_error("uImage data is not a fdt");
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return NULL;
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}
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return fdt_hdr;
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}
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#endif
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static void boot_fdt_reserve_region(struct lmb *lmb, uint64_t addr,
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uint64_t size, enum lmb_flags flags)
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{
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long ret;
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ret = lmb_reserve_flags(lmb, addr, size, flags);
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if (ret >= 0) {
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debug(" reserving fdt memory region: addr=%llx size=%llx flags=%x\n",
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(unsigned long long)addr,
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(unsigned long long)size, flags);
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} else {
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puts("ERROR: reserving fdt memory region failed ");
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printf("(addr=%llx size=%llx flags=%x)\n",
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(unsigned long long)addr,
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(unsigned long long)size, flags);
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}
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}
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/**
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* boot_fdt_add_mem_rsv_regions - Mark the memreserve and reserved-memory
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* sections as unusable
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* @lmb: pointer to lmb handle, will be used for memory mgmt
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* @fdt_blob: pointer to fdt blob base address
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*
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* Adds the and reserved-memorymemreserve regions in the dtb to the lmb block.
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* Adding the memreserve regions prevents u-boot from using them to store the
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* initrd or the fdt blob.
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*/
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void boot_fdt_add_mem_rsv_regions(struct lmb *lmb, void *fdt_blob)
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{
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uint64_t addr, size;
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int i, total, ret;
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int nodeoffset, subnode;
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struct fdt_resource res;
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enum lmb_flags flags;
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if (fdt_check_header(fdt_blob) != 0)
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return;
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/* process memreserve sections */
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total = fdt_num_mem_rsv(fdt_blob);
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for (i = 0; i < total; i++) {
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if (fdt_get_mem_rsv(fdt_blob, i, &addr, &size) != 0)
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continue;
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boot_fdt_reserve_region(lmb, addr, size, LMB_NONE);
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}
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/* process reserved-memory */
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nodeoffset = fdt_subnode_offset(fdt_blob, 0, "reserved-memory");
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if (nodeoffset >= 0) {
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subnode = fdt_first_subnode(fdt_blob, nodeoffset);
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while (subnode >= 0) {
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/* check if this subnode has a reg property */
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ret = fdt_get_resource(fdt_blob, subnode, "reg", 0,
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&res);
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if (!ret && fdtdec_get_is_enabled(fdt_blob, subnode)) {
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flags = LMB_NONE;
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if (fdtdec_get_bool(fdt_blob, subnode,
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"no-map"))
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flags = LMB_NOMAP;
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addr = res.start;
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size = res.end - res.start + 1;
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boot_fdt_reserve_region(lmb, addr, size, flags);
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}
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subnode = fdt_next_subnode(fdt_blob, subnode);
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}
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}
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}
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/**
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* boot_relocate_fdt - relocate flat device tree
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* @lmb: pointer to lmb handle, will be used for memory mgmt
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* @of_flat_tree: pointer to a char* variable, will hold fdt start address
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* @of_size: pointer to a ulong variable, will hold fdt length
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*
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* boot_relocate_fdt() allocates a region of memory within the bootmap and
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* relocates the of_flat_tree into that region, even if the fdt is already in
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* the bootmap. It also expands the size of the fdt by CONFIG_SYS_FDT_PAD
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* bytes.
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*
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* of_flat_tree and of_size are set to final (after relocation) values
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*
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* returns:
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* 0 - success
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* 1 - failure
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*/
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int boot_relocate_fdt(struct lmb *lmb, char **of_flat_tree, ulong *of_size)
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{
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void *fdt_blob = *of_flat_tree;
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void *of_start = NULL;
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u64 start, size, usable;
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char *fdt_high;
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ulong mapsize, low;
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ulong of_len = 0;
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int bank;
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int err;
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int disable_relocation = 0;
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/* nothing to do */
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if (*of_size == 0)
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return 0;
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if (fdt_check_header(fdt_blob) != 0) {
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fdt_error("image is not a fdt");
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goto error;
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}
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/* position on a 4K boundary before the alloc_current */
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/* Pad the FDT by a specified amount */
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of_len = *of_size + CONFIG_SYS_FDT_PAD;
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/* If fdt_high is set use it to select the relocation address */
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fdt_high = env_get("fdt_high");
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if (fdt_high) {
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ulong desired_addr = hextoul(fdt_high, NULL);
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ulong addr;
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if (desired_addr == ~0UL) {
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/* All ones means use fdt in place */
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of_start = fdt_blob;
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lmb_reserve(lmb, map_to_sysmem(of_start), of_len);
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disable_relocation = 1;
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} else if (desired_addr) {
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addr = lmb_alloc_base(lmb, of_len, 0x1000,
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desired_addr);
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of_start = map_sysmem(addr, of_len);
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if (of_start == NULL) {
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puts("Failed using fdt_high value for Device Tree");
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goto error;
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}
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} else {
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addr = lmb_alloc(lmb, of_len, 0x1000);
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of_start = map_sysmem(addr, of_len);
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}
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} else {
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mapsize = env_get_bootm_mapsize();
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low = env_get_bootm_low();
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of_start = NULL;
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for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
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start = gd->bd->bi_dram[bank].start;
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size = gd->bd->bi_dram[bank].size;
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/* DRAM bank addresses are too low, skip it. */
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if (start + size < low)
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continue;
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usable = min(size, (u64)mapsize);
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/*
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* At least part of this DRAM bank is usable, try
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* using it for LMB allocation.
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*/
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of_start = map_sysmem((ulong)lmb_alloc_base(lmb,
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of_len, 0x1000, start + usable), of_len);
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/* Allocation succeeded, use this block. */
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if (of_start != NULL)
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break;
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/*
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* Reduce the mapping size in the next bank
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* by the size of attempt in current bank.
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*/
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mapsize -= usable - max(start, (u64)low);
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if (!mapsize)
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break;
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}
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}
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if (of_start == NULL) {
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puts("device tree - allocation error\n");
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goto error;
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}
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if (disable_relocation) {
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/*
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* We assume there is space after the existing fdt to use
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* for padding
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*/
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fdt_set_totalsize(of_start, of_len);
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printf(" Using Device Tree in place at %p, end %p\n",
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of_start, of_start + of_len - 1);
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} else {
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debug("## device tree at %p ... %p (len=%ld [0x%lX])\n",
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fdt_blob, fdt_blob + *of_size - 1, of_len, of_len);
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printf(" Loading Device Tree to %p, end %p ... ",
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of_start, of_start + of_len - 1);
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err = fdt_open_into(fdt_blob, of_start, of_len);
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if (err != 0) {
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fdt_error("fdt move failed");
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goto error;
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}
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puts("OK\n");
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}
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*of_flat_tree = of_start;
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*of_size = of_len;
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if (IS_ENABLED(CONFIG_CMD_FDT))
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set_working_fdt_addr(map_to_sysmem(*of_flat_tree));
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return 0;
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error:
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return 1;
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}
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/**
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* select_fdt() - Select and locate the FDT to use
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*
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* @images: pointer to the bootm images structure
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* @select: name of FDT to select, or NULL for any
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* @arch: expected FDT architecture
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* @fdt_addrp: pointer to a ulong variable, will hold FDT pointer
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* Return: 0 if OK, -ENOPKG if no FDT (but an error should not be reported),
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* other -ve value on other error
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*/
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static int select_fdt(struct bootm_headers *images, const char *select, u8 arch,
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ulong *fdt_addrp)
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{
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const char *buf;
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ulong fdt_addr;
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#if CONFIG_IS_ENABLED(FIT)
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const char *fit_uname_config = images->fit_uname_cfg;
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const char *fit_uname_fdt = NULL;
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ulong default_addr;
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int fdt_noffset;
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if (select) {
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/*
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* If the FDT blob comes from the FIT image and the
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* FIT image address is omitted in the command line
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* argument, try to use ramdisk or os FIT image
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* address or default load address.
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*/
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if (images->fit_uname_rd)
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default_addr = (ulong)images->fit_hdr_rd;
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else if (images->fit_uname_os)
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default_addr = (ulong)images->fit_hdr_os;
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else
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default_addr = image_load_addr;
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if (fit_parse_conf(select, default_addr, &fdt_addr,
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&fit_uname_config)) {
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debug("* fdt: config '%s' from image at 0x%08lx\n",
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fit_uname_config, fdt_addr);
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} else if (fit_parse_subimage(select, default_addr, &fdt_addr,
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&fit_uname_fdt)) {
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debug("* fdt: subimage '%s' from image at 0x%08lx\n",
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fit_uname_fdt, fdt_addr);
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} else
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#endif
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{
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fdt_addr = hextoul(select, NULL);
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debug("* fdt: cmdline image address = 0x%08lx\n",
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fdt_addr);
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}
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#if CONFIG_IS_ENABLED(FIT)
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} else {
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/* use FIT configuration provided in first bootm
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* command argument
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*/
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fdt_addr = map_to_sysmem(images->fit_hdr_os);
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fdt_noffset = fit_get_node_from_config(images, FIT_FDT_PROP,
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fdt_addr);
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if (fdt_noffset == -ENOENT)
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return -ENOPKG;
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else if (fdt_noffset < 0)
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return fdt_noffset;
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}
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#endif
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debug("## Checking for 'FDT'/'FDT Image' at %08lx\n",
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fdt_addr);
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/*
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* Check if there is an FDT image at the
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* address provided in the second bootm argument
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* check image type, for FIT images get a FIT node.
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*/
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buf = map_sysmem(fdt_addr, 0);
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switch (genimg_get_format(buf)) {
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#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
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case IMAGE_FORMAT_LEGACY: {
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const struct legacy_img_hdr *fdt_hdr;
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ulong load, load_end;
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ulong image_start, image_data, image_end;
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/* verify fdt_addr points to a valid image header */
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printf("## Flattened Device Tree from Legacy Image at %08lx\n",
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fdt_addr);
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fdt_hdr = image_get_fdt(fdt_addr);
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if (!fdt_hdr)
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return -ENOPKG;
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/*
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* move image data to the load address,
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* make sure we don't overwrite initial image
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*/
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image_start = (ulong)fdt_hdr;
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image_data = (ulong)image_get_data(fdt_hdr);
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image_end = image_get_image_end(fdt_hdr);
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load = image_get_load(fdt_hdr);
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load_end = load + image_get_data_size(fdt_hdr);
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if (load == image_start ||
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load == image_data) {
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fdt_addr = load;
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break;
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}
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if ((load < image_end) && (load_end > image_start)) {
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fdt_error("fdt overwritten");
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return -EFAULT;
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}
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debug(" Loading FDT from 0x%08lx to 0x%08lx\n",
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image_data, load);
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memmove((void *)load,
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(void *)image_data,
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image_get_data_size(fdt_hdr));
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fdt_addr = load;
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break;
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}
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#endif
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case IMAGE_FORMAT_FIT:
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/*
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* This case will catch both: new uImage format
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* (libfdt based) and raw FDT blob (also libfdt
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* based).
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*/
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#if CONFIG_IS_ENABLED(FIT)
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/* check FDT blob vs FIT blob */
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if (!fit_check_format(buf, IMAGE_SIZE_INVAL)) {
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ulong load, len;
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fdt_noffset = boot_get_fdt_fit(images, fdt_addr,
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&fit_uname_fdt,
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&fit_uname_config,
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arch, &load, &len);
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if (fdt_noffset < 0)
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return -ENOENT;
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images->fit_hdr_fdt = map_sysmem(fdt_addr, 0);
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images->fit_uname_fdt = fit_uname_fdt;
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images->fit_noffset_fdt = fdt_noffset;
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fdt_addr = load;
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break;
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} else
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#endif
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{
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/*
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* FDT blob
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*/
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debug("* fdt: raw FDT blob\n");
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printf("## Flattened Device Tree blob at %08lx\n",
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(long)fdt_addr);
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}
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break;
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default:
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puts("ERROR: Did not find a cmdline Flattened Device Tree\n");
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return -ENOENT;
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}
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*fdt_addrp = fdt_addr;
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return 0;
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}
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/**
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* boot_get_fdt - main fdt handling routine
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* @argc: command argument count
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* @argv: command argument list
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* @arch: architecture (IH_ARCH_...)
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* @images: pointer to the bootm images structure
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* @of_flat_tree: pointer to a char* variable, will hold fdt start address
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* @of_size: pointer to a ulong variable, will hold fdt length
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*
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* boot_get_fdt() is responsible for finding a valid flat device tree image.
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* Currently supported are the following ramdisk sources:
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* - multicomponent kernel/ramdisk image,
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* - commandline provided address of decicated ramdisk image.
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*
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* returns:
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* 0, if fdt image was found and valid, or skipped
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* of_flat_tree and of_size are set to fdt start address and length if
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* fdt image is found and valid
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*
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* 1, if fdt image is found but corrupted
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* of_flat_tree and of_size are set to 0 if no fdt exists
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*/
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int boot_get_fdt(int flag, int argc, char *const argv[], uint8_t arch,
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struct bootm_headers *images, char **of_flat_tree, ulong *of_size)
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{
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ulong img_addr;
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ulong fdt_addr;
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char *fdt_blob = NULL;
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void *buf;
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const char *select = NULL;
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*of_flat_tree = NULL;
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*of_size = 0;
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img_addr = (argc == 0) ? image_load_addr : hextoul(argv[0], NULL);
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buf = map_sysmem(img_addr, 0);
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if (argc > 2)
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select = argv[2];
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if (select || genimg_has_config(images)) {
|
|
int ret;
|
|
|
|
ret = select_fdt(images, select, arch, &fdt_addr);
|
|
if (ret == -ENOPKG)
|
|
goto no_fdt;
|
|
else if (ret)
|
|
return 1;
|
|
printf(" Booting using the fdt blob at %#08lx\n", fdt_addr);
|
|
fdt_blob = map_sysmem(fdt_addr, 0);
|
|
} else if (images->legacy_hdr_valid &&
|
|
image_check_type(&images->legacy_hdr_os_copy,
|
|
IH_TYPE_MULTI)) {
|
|
ulong fdt_data, fdt_len;
|
|
|
|
/*
|
|
* Now check if we have a legacy multi-component image,
|
|
* get second entry data start address and len.
|
|
*/
|
|
printf("## Flattened Device Tree from multi component Image at %08lX\n",
|
|
(ulong)images->legacy_hdr_os);
|
|
|
|
image_multi_getimg(images->legacy_hdr_os, 2, &fdt_data,
|
|
&fdt_len);
|
|
if (fdt_len) {
|
|
fdt_blob = (char *)fdt_data;
|
|
printf(" Booting using the fdt at 0x%p\n", fdt_blob);
|
|
|
|
if (fdt_check_header(fdt_blob) != 0) {
|
|
fdt_error("image is not a fdt");
|
|
goto error;
|
|
}
|
|
|
|
if (fdt_totalsize(fdt_blob) != fdt_len) {
|
|
fdt_error("fdt size != image size");
|
|
goto error;
|
|
}
|
|
} else {
|
|
debug("## No Flattened Device Tree\n");
|
|
goto no_fdt;
|
|
}
|
|
#ifdef CONFIG_ANDROID_BOOT_IMAGE
|
|
} else if (genimg_get_format(buf) == IMAGE_FORMAT_ANDROID) {
|
|
void *hdr = buf;
|
|
ulong fdt_data, fdt_len;
|
|
u32 fdt_size, dtb_idx;
|
|
/*
|
|
* Firstly check if this android boot image has dtb field.
|
|
*/
|
|
dtb_idx = (u32)env_get_ulong("adtb_idx", 10, 0);
|
|
if (android_image_get_dtb_by_index((ulong)hdr, 0,
|
|
dtb_idx, &fdt_addr, &fdt_size)) {
|
|
fdt_blob = (char *)map_sysmem(fdt_addr, 0);
|
|
if (fdt_check_header(fdt_blob))
|
|
goto no_fdt;
|
|
|
|
debug("## Using FDT in Android image dtb area with idx %u\n", dtb_idx);
|
|
} else if (!android_image_get_second(hdr, &fdt_data, &fdt_len) &&
|
|
!fdt_check_header((char *)fdt_data)) {
|
|
fdt_blob = (char *)fdt_data;
|
|
if (fdt_totalsize(fdt_blob) != fdt_len)
|
|
goto error;
|
|
|
|
debug("## Using FDT in Android image second area\n");
|
|
} else {
|
|
fdt_addr = env_get_hex("fdtaddr", 0);
|
|
if (!fdt_addr)
|
|
goto no_fdt;
|
|
|
|
fdt_blob = map_sysmem(fdt_addr, 0);
|
|
if (fdt_check_header(fdt_blob))
|
|
goto no_fdt;
|
|
|
|
debug("## Using FDT at ${fdtaddr}=Ox%lx\n", fdt_addr);
|
|
}
|
|
#endif
|
|
} else {
|
|
debug("## No Flattened Device Tree\n");
|
|
goto no_fdt;
|
|
}
|
|
|
|
*of_flat_tree = fdt_blob;
|
|
*of_size = fdt_totalsize(fdt_blob);
|
|
debug(" of_flat_tree at 0x%08lx size 0x%08lx\n",
|
|
(ulong)*of_flat_tree, *of_size);
|
|
|
|
return 0;
|
|
|
|
no_fdt:
|
|
debug("Continuing to boot without FDT\n");
|
|
return 0;
|
|
error:
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Verify the device tree.
|
|
*
|
|
* This function is called after all device tree fix-ups have been enacted,
|
|
* so that the final device tree can be verified. The definition of "verified"
|
|
* is up to the specific implementation. However, it generally means that the
|
|
* addresses of some of the devices in the device tree are compared with the
|
|
* actual addresses at which U-Boot has placed them.
|
|
*
|
|
* Returns 1 on success, 0 on failure. If 0 is returned, U-Boot will halt the
|
|
* boot process.
|
|
*/
|
|
__weak int ft_verify_fdt(void *fdt)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
__weak int arch_fixup_fdt(void *blob)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int image_setup_libfdt(struct bootm_headers *images, void *blob,
|
|
int of_size, struct lmb *lmb)
|
|
{
|
|
ulong *initrd_start = &images->initrd_start;
|
|
ulong *initrd_end = &images->initrd_end;
|
|
int ret = -EPERM;
|
|
int fdt_ret;
|
|
|
|
if (fdt_root(blob) < 0) {
|
|
printf("ERROR: root node setup failed\n");
|
|
goto err;
|
|
}
|
|
if (fdt_chosen(blob) < 0) {
|
|
printf("ERROR: /chosen node create failed\n");
|
|
goto err;
|
|
}
|
|
if (arch_fixup_fdt(blob) < 0) {
|
|
printf("ERROR: arch-specific fdt fixup failed\n");
|
|
goto err;
|
|
}
|
|
|
|
fdt_ret = optee_copy_fdt_nodes(blob);
|
|
if (fdt_ret) {
|
|
printf("ERROR: transfer of optee nodes to new fdt failed: %s\n",
|
|
fdt_strerror(fdt_ret));
|
|
goto err;
|
|
}
|
|
|
|
/* Store name of configuration node as u-boot,bootconf in /chosen node */
|
|
if (images->fit_uname_cfg)
|
|
fdt_find_and_setprop(blob, "/chosen", "u-boot,bootconf",
|
|
images->fit_uname_cfg,
|
|
strlen(images->fit_uname_cfg) + 1, 1);
|
|
|
|
/* Update ethernet nodes */
|
|
fdt_fixup_ethernet(blob);
|
|
#if IS_ENABLED(CONFIG_CMD_PSTORE)
|
|
/* Append PStore configuration */
|
|
fdt_fixup_pstore(blob);
|
|
#endif
|
|
if (IS_ENABLED(CONFIG_OF_BOARD_SETUP)) {
|
|
const char *skip_board_fixup;
|
|
|
|
skip_board_fixup = env_get("skip_board_fixup");
|
|
if (skip_board_fixup && ((int)simple_strtol(skip_board_fixup, NULL, 10) == 1)) {
|
|
printf("skip board fdt fixup\n");
|
|
} else {
|
|
fdt_ret = ft_board_setup(blob, gd->bd);
|
|
if (fdt_ret) {
|
|
printf("ERROR: board-specific fdt fixup failed: %s\n",
|
|
fdt_strerror(fdt_ret));
|
|
goto err;
|
|
}
|
|
}
|
|
}
|
|
if (IS_ENABLED(CONFIG_OF_SYSTEM_SETUP)) {
|
|
fdt_ret = ft_system_setup(blob, gd->bd);
|
|
if (fdt_ret) {
|
|
printf("ERROR: system-specific fdt fixup failed: %s\n",
|
|
fdt_strerror(fdt_ret));
|
|
goto err;
|
|
}
|
|
}
|
|
if (!of_live_active() && CONFIG_IS_ENABLED(EVENT)) {
|
|
struct event_ft_fixup fixup;
|
|
|
|
fixup.tree = oftree_from_fdt(blob);
|
|
fixup.images = images;
|
|
if (oftree_valid(fixup.tree)) {
|
|
ret = event_notify(EVT_FT_FIXUP, &fixup, sizeof(fixup));
|
|
if (ret) {
|
|
printf("ERROR: fdt fixup event failed: %d\n",
|
|
ret);
|
|
goto err;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Delete the old LMB reservation */
|
|
if (lmb)
|
|
lmb_free(lmb, (phys_addr_t)(u32)(uintptr_t)blob,
|
|
(phys_size_t)fdt_totalsize(blob));
|
|
|
|
ret = fdt_shrink_to_minimum(blob, 0);
|
|
if (ret < 0)
|
|
goto err;
|
|
of_size = ret;
|
|
|
|
if (*initrd_start && *initrd_end) {
|
|
of_size += FDT_RAMDISK_OVERHEAD;
|
|
fdt_set_totalsize(blob, of_size);
|
|
}
|
|
/* Create a new LMB reservation */
|
|
if (lmb)
|
|
lmb_reserve(lmb, (ulong)blob, of_size);
|
|
|
|
fdt_initrd(blob, *initrd_start, *initrd_end);
|
|
if (!ft_verify_fdt(blob))
|
|
goto err;
|
|
|
|
#if defined(CONFIG_ARCH_KEYSTONE)
|
|
if (IS_ENABLED(CONFIG_OF_BOARD_SETUP))
|
|
ft_board_setup_ex(blob, gd->bd);
|
|
#endif
|
|
|
|
return 0;
|
|
err:
|
|
printf(" - must RESET the board to recover.\n\n");
|
|
|
|
return ret;
|
|
}
|