1 files changed, 634 insertions, 0 deletions

diff --git a/roms/u-boot/common/image-fdt.c b/roms/u-boot/common/image-fdt.c
new file mode 100644
index 000000000..d50e1ba3f
--- /dev/null
+++ b/roms/u-boot/common/image-fdt.c
@@ -0,0 +1,634 @@
+// 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)
+{
+	long ret;
+
+	ret = lmb_reserve(lmb, addr, size);
+	if (ret >= 0) {
+		debug("   reserving fdt memory region: addr=%llx size=%llx\n",
+		      (unsigned long long)addr, (unsigned long long)size);
+	} else {
+		puts("ERROR: reserving fdt memory region failed ");
+		printf("(addr=%llx size=%llx)\n",
+		       (unsigned long long)addr, (unsigned long long)size);
+	}
+}
+
+/**
+ * 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;
+
+	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);
+	}
+
+	/* 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)) {
+				addr = res.start;
+				size = res.end - res.start + 1;
+				boot_fdt_reserve_region(lmb, addr, size);
+			}
+
+			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 *)simple_strtoul(fdt_high, NULL, 16);
+
+		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;
+}
+
+/**
+ * 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.
+ * Curently 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)
+{
+#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
+	const image_header_t *fdt_hdr;
+	ulong		load, load_end;
+	ulong		image_start, image_data, image_end;
+#endif
+	ulong		img_addr;
+	ulong		fdt_addr;
+	char		*fdt_blob = NULL;
+	void		*buf;
+#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;
+#endif
+	const char *select = NULL;
+
+	*of_flat_tree = NULL;
+	*of_size = 0;
+
+	img_addr = (argc == 0) ? image_load_addr :
+			simple_strtoul(argv[0], NULL, 16);
+	buf = map_sysmem(img_addr, 0);
+
+	if (argc > 2)
+		select = argv[2];
+	if (select || genimg_has_config(images)) {
+#if CONFIG_IS_ENABLED(FIT)
+		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 = simple_strtoul(select, NULL, 16);
+				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 0;
+			else if (fdt_noffset < 0)
+				return 1;
+		}
+#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:
+			/* 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)
+				goto no_fdt;
+
+			/*
+			 * 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");
+				goto error;
+			}
+
+			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)
+					goto error;
+
+				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");
+			goto error;
+		}
+
+		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 (IMAGE_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 (IMAGE_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_SOC_KEYSTONE)
+	if (IMAGE_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;
+}