diff options
Diffstat (limited to 'common/image-fdt.c')
| -rw-r--r-- | common/image-fdt.c | 666 |
1 files changed, 0 insertions, 666 deletions
diff --git a/common/image-fdt.c b/common/image-fdt.c deleted file mode 100644 index 7aad6d57b8..0000000000 --- a/common/image-fdt.c +++ /dev/null @@ -1,666 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Copyright (c) 2013, Google Inc. - * - * (C) Copyright 2008 Semihalf - * - * (C) Copyright 2000-2006 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - */ - -#include <common.h> -#include <fdt_support.h> -#include <fdtdec.h> -#include <env.h> -#include <errno.h> -#include <image.h> -#include <lmb.h> -#include <log.h> -#include <malloc.h> -#include <asm/global_data.h> -#include <linux/libfdt.h> -#include <mapmem.h> -#include <asm/io.h> -#include <tee/optee.h> - -#ifndef CONFIG_SYS_FDT_PAD -#define CONFIG_SYS_FDT_PAD 0x3000 -#endif - -/* adding a ramdisk needs 0x44 bytes in version 2008.10 */ -#define FDT_RAMDISK_OVERHEAD 0x80 - -DECLARE_GLOBAL_DATA_PTR; - -static void fdt_error(const char *msg) -{ - puts("ERROR: "); - puts(msg); - puts(" - must RESET the board to recover.\n"); -} - -#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT) -static const image_header_t *image_get_fdt(ulong fdt_addr) -{ - const image_header_t *fdt_hdr = map_sysmem(fdt_addr, 0); - - image_print_contents(fdt_hdr); - - puts(" Verifying Checksum ... "); - if (!image_check_hcrc(fdt_hdr)) { - fdt_error("fdt header checksum invalid"); - return NULL; - } - - if (!image_check_dcrc(fdt_hdr)) { - fdt_error("fdt checksum invalid"); - return NULL; - } - puts("OK\n"); - - if (!image_check_type(fdt_hdr, IH_TYPE_FLATDT)) { - fdt_error("uImage is not a fdt"); - return NULL; - } - if (image_get_comp(fdt_hdr) != IH_COMP_NONE) { - fdt_error("uImage is compressed"); - return NULL; - } - if (fdt_check_header((void *)image_get_data(fdt_hdr)) != 0) { - fdt_error("uImage data is not a fdt"); - return NULL; - } - return fdt_hdr; -} -#endif - -static void boot_fdt_reserve_region(struct lmb *lmb, uint64_t addr, - uint64_t size, enum lmb_flags flags) -{ - long ret; - - ret = lmb_reserve_flags(lmb, addr, size, flags); - if (ret >= 0) { - debug(" reserving fdt memory region: addr=%llx size=%llx flags=%x\n", - (unsigned long long)addr, - (unsigned long long)size, flags); - } else { - puts("ERROR: reserving fdt memory region failed "); - printf("(addr=%llx size=%llx flags=%x)\n", - (unsigned long long)addr, - (unsigned long long)size, flags); - } -} - -/** - * boot_fdt_add_mem_rsv_regions - Mark the memreserve and reserved-memory - * sections as unusable - * @lmb: pointer to lmb handle, will be used for memory mgmt - * @fdt_blob: pointer to fdt blob base address - * - * Adds the and reserved-memorymemreserve regions in the dtb to the lmb block. - * Adding the memreserve regions prevents u-boot from using them to store the - * initrd or the fdt blob. - */ -void boot_fdt_add_mem_rsv_regions(struct lmb *lmb, void *fdt_blob) -{ - uint64_t addr, size; - int i, total, ret; - int nodeoffset, subnode; - struct fdt_resource res; - enum lmb_flags flags; - - if (fdt_check_header(fdt_blob) != 0) - return; - - /* process memreserve sections */ - total = fdt_num_mem_rsv(fdt_blob); - for (i = 0; i < total; i++) { - if (fdt_get_mem_rsv(fdt_blob, i, &addr, &size) != 0) - continue; - boot_fdt_reserve_region(lmb, addr, size, LMB_NONE); - } - - /* process reserved-memory */ - nodeoffset = fdt_subnode_offset(fdt_blob, 0, "reserved-memory"); - if (nodeoffset >= 0) { - subnode = fdt_first_subnode(fdt_blob, nodeoffset); - while (subnode >= 0) { - /* check if this subnode has a reg property */ - ret = fdt_get_resource(fdt_blob, subnode, "reg", 0, - &res); - if (!ret && fdtdec_get_is_enabled(fdt_blob, subnode)) { - flags = LMB_NONE; - if (fdtdec_get_bool(fdt_blob, subnode, - "no-map")) - flags = LMB_NOMAP; - addr = res.start; - size = res.end - res.start + 1; - boot_fdt_reserve_region(lmb, addr, size, flags); - } - - subnode = fdt_next_subnode(fdt_blob, subnode); - } - } -} - -/** - * boot_relocate_fdt - relocate flat device tree - * @lmb: pointer to lmb handle, will be used for memory mgmt - * @of_flat_tree: pointer to a char* variable, will hold fdt start address - * @of_size: pointer to a ulong variable, will hold fdt length - * - * boot_relocate_fdt() allocates a region of memory within the bootmap and - * relocates the of_flat_tree into that region, even if the fdt is already in - * the bootmap. It also expands the size of the fdt by CONFIG_SYS_FDT_PAD - * bytes. - * - * of_flat_tree and of_size are set to final (after relocation) values - * - * returns: - * 0 - success - * 1 - failure - */ -int boot_relocate_fdt(struct lmb *lmb, char **of_flat_tree, ulong *of_size) -{ - void *fdt_blob = *of_flat_tree; - void *of_start = NULL; - char *fdt_high; - ulong of_len = 0; - int err; - int disable_relocation = 0; - - /* nothing to do */ - if (*of_size == 0) - return 0; - - if (fdt_check_header(fdt_blob) != 0) { - fdt_error("image is not a fdt"); - goto error; - } - - /* position on a 4K boundary before the alloc_current */ - /* Pad the FDT by a specified amount */ - of_len = *of_size + CONFIG_SYS_FDT_PAD; - - /* If fdt_high is set use it to select the relocation address */ - fdt_high = env_get("fdt_high"); - if (fdt_high) { - void *desired_addr = (void *)hextoul(fdt_high, NULL); - - if (((ulong) desired_addr) == ~0UL) { - /* All ones means use fdt in place */ - of_start = fdt_blob; - lmb_reserve(lmb, (ulong)of_start, of_len); - disable_relocation = 1; - } else if (desired_addr) { - of_start = - (void *)(ulong) lmb_alloc_base(lmb, of_len, 0x1000, - (ulong)desired_addr); - if (of_start == NULL) { - puts("Failed using fdt_high value for Device Tree"); - goto error; - } - } else { - of_start = - (void *)(ulong) lmb_alloc(lmb, of_len, 0x1000); - } - } else { - of_start = - (void *)(ulong) lmb_alloc_base(lmb, of_len, 0x1000, - env_get_bootm_mapsize() - + env_get_bootm_low()); - } - - if (of_start == NULL) { - puts("device tree - allocation error\n"); - goto error; - } - - if (disable_relocation) { - /* - * We assume there is space after the existing fdt to use - * for padding - */ - fdt_set_totalsize(of_start, of_len); - printf(" Using Device Tree in place at %p, end %p\n", - of_start, of_start + of_len - 1); - } else { - debug("## device tree at %p ... %p (len=%ld [0x%lX])\n", - fdt_blob, fdt_blob + *of_size - 1, of_len, of_len); - - printf(" Loading Device Tree to %p, end %p ... ", - of_start, of_start + of_len - 1); - - err = fdt_open_into(fdt_blob, of_start, of_len); - if (err != 0) { - fdt_error("fdt move failed"); - goto error; - } - puts("OK\n"); - } - - *of_flat_tree = of_start; - *of_size = of_len; - - if (CONFIG_IS_ENABLED(CMD_FDT)) - set_working_fdt_addr(map_to_sysmem(*of_flat_tree)); - return 0; - -error: - return 1; -} - -/** - * select_fdt() - Select and locate the FDT to use - * - * @images: pointer to the bootm images structure - * @select: name of FDT to select, or NULL for any - * @arch: expected FDT architecture - * @fdt_addrp: pointer to a ulong variable, will hold FDT pointer - * @return 0 if OK, -ENOPKG if no FDT (but an error should not be reported), - * other -ve value on other error - */ - -static int select_fdt(bootm_headers_t *images, const char *select, u8 arch, - ulong *fdt_addrp) -{ - const char *buf; - ulong fdt_addr; - -#if CONFIG_IS_ENABLED(FIT) - const char *fit_uname_config = images->fit_uname_cfg; - const char *fit_uname_fdt = NULL; - ulong default_addr; - int fdt_noffset; - - if (select) { - /* - * If the FDT blob comes from the FIT image and the - * FIT image address is omitted in the command line - * argument, try to use ramdisk or os FIT image - * address or default load address. - */ - if (images->fit_uname_rd) - default_addr = (ulong)images->fit_hdr_rd; - else if (images->fit_uname_os) - default_addr = (ulong)images->fit_hdr_os; - else - default_addr = image_load_addr; - - if (fit_parse_conf(select, default_addr, &fdt_addr, - &fit_uname_config)) { - debug("* fdt: config '%s' from image at 0x%08lx\n", - fit_uname_config, fdt_addr); - } else if (fit_parse_subimage(select, default_addr, &fdt_addr, - &fit_uname_fdt)) { - debug("* fdt: subimage '%s' from image at 0x%08lx\n", - fit_uname_fdt, fdt_addr); - } else -#endif - { - fdt_addr = hextoul(select, NULL); - debug("* fdt: cmdline image address = 0x%08lx\n", - fdt_addr); - } -#if CONFIG_IS_ENABLED(FIT) - } else { - /* use FIT configuration provided in first bootm - * command argument - */ - fdt_addr = map_to_sysmem(images->fit_hdr_os); - fdt_noffset = fit_get_node_from_config(images, FIT_FDT_PROP, - fdt_addr); - if (fdt_noffset == -ENOENT) - return -ENOPKG; - else if (fdt_noffset < 0) - return fdt_noffset; - } -#endif - debug("## Checking for 'FDT'/'FDT Image' at %08lx\n", - fdt_addr); - - /* - * Check if there is an FDT image at the - * address provided in the second bootm argument - * check image type, for FIT images get a FIT node. - */ - buf = map_sysmem(fdt_addr, 0); - switch (genimg_get_format(buf)) { -#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT) - case IMAGE_FORMAT_LEGACY: { - const image_header_t *fdt_hdr; - ulong load, load_end; - ulong image_start, image_data, image_end; - - /* verify fdt_addr points to a valid image header */ - printf("## Flattened Device Tree from Legacy Image at %08lx\n", - fdt_addr); - fdt_hdr = image_get_fdt(fdt_addr); - if (!fdt_hdr) - return -ENOPKG; - - /* - * move image data to the load address, - * make sure we don't overwrite initial image - */ - image_start = (ulong)fdt_hdr; - image_data = (ulong)image_get_data(fdt_hdr); - image_end = image_get_image_end(fdt_hdr); - - load = image_get_load(fdt_hdr); - load_end = load + image_get_data_size(fdt_hdr); - - if (load == image_start || - load == image_data) { - fdt_addr = load; - break; - } - - if ((load < image_end) && (load_end > image_start)) { - fdt_error("fdt overwritten"); - return -EFAULT; - } - - debug(" Loading FDT from 0x%08lx to 0x%08lx\n", - image_data, load); - - memmove((void *)load, - (void *)image_data, - image_get_data_size(fdt_hdr)); - - fdt_addr = load; - break; - } -#endif - case IMAGE_FORMAT_FIT: - /* - * This case will catch both: new uImage format - * (libfdt based) and raw FDT blob (also libfdt - * based). - */ -#if CONFIG_IS_ENABLED(FIT) - /* check FDT blob vs FIT blob */ - if (!fit_check_format(buf, IMAGE_SIZE_INVAL)) { - ulong load, len; - - fdt_noffset = boot_get_fdt_fit(images, fdt_addr, - &fit_uname_fdt, - &fit_uname_config, - arch, &load, &len); - - if (fdt_noffset < 0) - return -ENOENT; - - images->fit_hdr_fdt = map_sysmem(fdt_addr, 0); - images->fit_uname_fdt = fit_uname_fdt; - images->fit_noffset_fdt = fdt_noffset; - fdt_addr = load; - - break; - } else -#endif - { - /* - * FDT blob - */ - debug("* fdt: raw FDT blob\n"); - printf("## Flattened Device Tree blob at %08lx\n", - (long)fdt_addr); - } - break; - default: - puts("ERROR: Did not find a cmdline Flattened Device Tree\n"); - return -ENOENT; - } - *fdt_addrp = fdt_addr; - - return 0; -} - -/** - * boot_get_fdt - main fdt handling routine - * @argc: command argument count - * @argv: command argument list - * @arch: architecture (IH_ARCH_...) - * @images: pointer to the bootm images structure - * @of_flat_tree: pointer to a char* variable, will hold fdt start address - * @of_size: pointer to a ulong variable, will hold fdt length - * - * boot_get_fdt() is responsible for finding a valid flat device tree image. - * Currently supported are the following ramdisk sources: - * - multicomponent kernel/ramdisk image, - * - commandline provided address of decicated ramdisk image. - * - * returns: - * 0, if fdt image was found and valid, or skipped - * of_flat_tree and of_size are set to fdt start address and length if - * fdt image is found and valid - * - * 1, if fdt image is found but corrupted - * of_flat_tree and of_size are set to 0 if no fdt exists - */ -int boot_get_fdt(int flag, int argc, char *const argv[], uint8_t arch, - bootm_headers_t *images, char **of_flat_tree, ulong *of_size) -{ - ulong img_addr; - ulong fdt_addr; - char *fdt_blob = NULL; - void *buf; - const char *select = NULL; - - *of_flat_tree = NULL; - *of_size = 0; - - img_addr = (argc == 0) ? image_load_addr : hextoul(argv[0], NULL); - buf = map_sysmem(img_addr, 0); - - if (argc > 2) - select = argv[2]; - 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) { - struct andr_img_hdr *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, 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(bootm_headers_t *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; - } - - /* Update ethernet nodes */ - fdt_fixup_ethernet(blob); -#if CONFIG_IS_ENABLED(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; - } - } - - /* 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; -} |