Remove the cmd_ prefix from command files

Now that they are in their own directory, we can remove this prefix.
This makes it easier to find a file since the prefix does not get in the
way.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>

1 files changed, 1065 insertions, 0 deletions

diff --git a/cmd/fdt.c b/cmd/fdt.c
new file mode 100644
index 0000000000..4c18962d85
--- /dev/null
+++ b/cmd/fdt.c
@@ -0,0 +1,1065 @@
+/*
+ * (C) Copyright 2007
+ * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com
+ * Based on code written by:
+ *   Pantelis Antoniou <pantelis.antoniou@gmail.com> and
+ *   Matthew McClintock <msm@freescale.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <linux/ctype.h>
+#include <linux/types.h>
+#include <asm/global_data.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include <mapmem.h>
+#include <asm/io.h>
+
+#define MAX_LEVEL	32		/* how deeply nested we will go */
+#define SCRATCHPAD	1024		/* bytes of scratchpad memory */
+#ifndef CONFIG_CMD_FDT_MAX_DUMP
+#define CONFIG_CMD_FDT_MAX_DUMP 64
+#endif
+
+/*
+ * Global data (for the gd->bd)
+ */
+DECLARE_GLOBAL_DATA_PTR;
+
+static int fdt_valid(struct fdt_header **blobp);
+static int fdt_parse_prop(char *const*newval, int count, char *data, int *len);
+static int fdt_print(const char *pathp, char *prop, int depth);
+static int is_printable_string(const void *data, int len);
+
+/*
+ * The working_fdt points to our working flattened device tree.
+ */
+struct fdt_header *working_fdt;
+
+void set_working_fdt_addr(ulong addr)
+{
+	void *buf;
+
+	buf = map_sysmem(addr, 0);
+	working_fdt = buf;
+	setenv_hex("fdtaddr", addr);
+}
+
+/*
+ * Get a value from the fdt and format it to be set in the environment
+ */
+static int fdt_value_setenv(const void *nodep, int len, const char *var)
+{
+	if (is_printable_string(nodep, len))
+		setenv(var, (void *)nodep);
+	else if (len == 4) {
+		char buf[11];
+
+		sprintf(buf, "0x%08X", *(uint32_t *)nodep);
+		setenv(var, buf);
+	} else if (len%4 == 0 && len <= 20) {
+		/* Needed to print things like sha1 hashes. */
+		char buf[41];
+		int i;
+
+		for (i = 0; i < len; i += sizeof(unsigned int))
+			sprintf(buf + (i * 2), "%08x",
+				*(unsigned int *)(nodep + i));
+		setenv(var, buf);
+	} else {
+		printf("error: unprintable value\n");
+		return 1;
+	}
+	return 0;
+}
+
+/*
+ * Flattened Device Tree command, see the help for parameter definitions.
+ */
+static int do_fdt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	if (argc < 2)
+		return CMD_RET_USAGE;
+
+	/*
+	 * Set the address of the fdt
+	 */
+	if (argv[1][0] == 'a') {
+		unsigned long addr;
+		int control = 0;
+		struct fdt_header *blob;
+		/*
+		 * Set the address [and length] of the fdt.
+		 */
+		argc -= 2;
+		argv += 2;
+/* Temporary #ifdef - some archs don't have fdt_blob yet */
+#ifdef CONFIG_OF_CONTROL
+		if (argc && !strcmp(*argv, "-c")) {
+			control = 1;
+			argc--;
+			argv++;
+		}
+#endif
+		if (argc == 0) {
+			if (control)
+				blob = (struct fdt_header *)gd->fdt_blob;
+			else
+				blob = working_fdt;
+			if (!blob || !fdt_valid(&blob))
+				return 1;
+			printf("The address of the fdt is %#08lx\n",
+			       control ? (ulong)map_to_sysmem(blob) :
+					getenv_hex("fdtaddr", 0));
+			return 0;
+		}
+
+		addr = simple_strtoul(argv[0], NULL, 16);
+		blob = map_sysmem(addr, 0);
+		if (!fdt_valid(&blob))
+			return 1;
+		if (control)
+			gd->fdt_blob = blob;
+		else
+			set_working_fdt_addr(addr);
+
+		if (argc >= 2) {
+			int  len;
+			int  err;
+			/*
+			 * Optional new length
+			 */
+			len = simple_strtoul(argv[1], NULL, 16);
+			if (len < fdt_totalsize(blob)) {
+				printf ("New length %d < existing length %d, "
+					"ignoring.\n",
+					len, fdt_totalsize(blob));
+			} else {
+				/*
+				 * Open in place with a new length.
+				 */
+				err = fdt_open_into(blob, blob, len);
+				if (err != 0) {
+					printf ("libfdt fdt_open_into(): %s\n",
+						fdt_strerror(err));
+				}
+			}
+		}
+
+		return CMD_RET_SUCCESS;
+	}
+
+	if (!working_fdt) {
+		puts(
+			"No FDT memory address configured. Please configure\n"
+			"the FDT address via \"fdt addr <address>\" command.\n"
+			"Aborting!\n");
+		return CMD_RET_FAILURE;
+	}
+
+	/*
+	 * Move the working_fdt
+	 */
+	if (strncmp(argv[1], "mo", 2) == 0) {
+		struct fdt_header *newaddr;
+		int  len;
+		int  err;
+
+		if (argc < 4)
+			return CMD_RET_USAGE;
+
+		/*
+		 * Set the address and length of the fdt.
+		 */
+		working_fdt = (struct fdt_header *)simple_strtoul(argv[2], NULL, 16);
+		if (!fdt_valid(&working_fdt))
+			return 1;
+
+		newaddr = (struct fdt_header *)simple_strtoul(argv[3],NULL,16);
+
+		/*
+		 * If the user specifies a length, use that.  Otherwise use the
+		 * current length.
+		 */
+		if (argc <= 4) {
+			len = fdt_totalsize(working_fdt);
+		} else {
+			len = simple_strtoul(argv[4], NULL, 16);
+			if (len < fdt_totalsize(working_fdt)) {
+				printf ("New length 0x%X < existing length "
+					"0x%X, aborting.\n",
+					len, fdt_totalsize(working_fdt));
+				return 1;
+			}
+		}
+
+		/*
+		 * Copy to the new location.
+		 */
+		err = fdt_open_into(working_fdt, newaddr, len);
+		if (err != 0) {
+			printf ("libfdt fdt_open_into(): %s\n",
+				fdt_strerror(err));
+			return 1;
+		}
+		working_fdt = newaddr;
+
+	/*
+	 * Make a new node
+	 */
+	} else if (strncmp(argv[1], "mk", 2) == 0) {
+		char *pathp;		/* path */
+		char *nodep;		/* new node to add */
+		int  nodeoffset;	/* node offset from libfdt */
+		int  err;
+
+		/*
+		 * Parameters: Node path, new node to be appended to the path.
+		 */
+		if (argc < 4)
+			return CMD_RET_USAGE;
+
+		pathp = argv[2];
+		nodep = argv[3];
+
+		nodeoffset = fdt_path_offset (working_fdt, pathp);
+		if (nodeoffset < 0) {
+			/*
+			 * Not found or something else bad happened.
+			 */
+			printf ("libfdt fdt_path_offset() returned %s\n",
+				fdt_strerror(nodeoffset));
+			return 1;
+		}
+		err = fdt_add_subnode(working_fdt, nodeoffset, nodep);
+		if (err < 0) {
+			printf ("libfdt fdt_add_subnode(): %s\n",
+				fdt_strerror(err));
+			return 1;
+		}
+
+	/*
+	 * Set the value of a property in the working_fdt.
+	 */
+	} else if (argv[1][0] == 's') {
+		char *pathp;		/* path */
+		char *prop;		/* property */
+		int  nodeoffset;	/* node offset from libfdt */
+		static char data[SCRATCHPAD];	/* storage for the property */
+		int  len;		/* new length of the property */
+		int  ret;		/* return value */
+
+		/*
+		 * Parameters: Node path, property, optional value.
+		 */
+		if (argc < 4)
+			return CMD_RET_USAGE;
+
+		pathp  = argv[2];
+		prop   = argv[3];
+		if (argc == 4) {
+			len = 0;
+		} else {
+			ret = fdt_parse_prop(&argv[4], argc - 4, data, &len);
+			if (ret != 0)
+				return ret;
+		}
+
+		nodeoffset = fdt_path_offset (working_fdt, pathp);
+		if (nodeoffset < 0) {
+			/*
+			 * Not found or something else bad happened.
+			 */
+			printf ("libfdt fdt_path_offset() returned %s\n",
+				fdt_strerror(nodeoffset));
+			return 1;
+		}
+
+		ret = fdt_setprop(working_fdt, nodeoffset, prop, data, len);
+		if (ret < 0) {
+			printf ("libfdt fdt_setprop(): %s\n", fdt_strerror(ret));
+			return 1;
+		}
+
+	/********************************************************************
+	 * Get the value of a property in the working_fdt.
+	 ********************************************************************/
+	} else if (argv[1][0] == 'g') {
+		char *subcmd;		/* sub-command */
+		char *pathp;		/* path */
+		char *prop;		/* property */
+		char *var;		/* variable to store result */
+		int  nodeoffset;	/* node offset from libfdt */
+		const void *nodep;	/* property node pointer */
+		int  len = 0;		/* new length of the property */
+
+		/*
+		 * Parameters: Node path, property, optional value.
+		 */
+		if (argc < 5)
+			return CMD_RET_USAGE;
+
+		subcmd = argv[2];
+
+		if (argc < 6 && subcmd[0] != 's')
+			return CMD_RET_USAGE;
+
+		var    = argv[3];
+		pathp  = argv[4];
+		prop   = argv[5];
+
+		nodeoffset = fdt_path_offset(working_fdt, pathp);
+		if (nodeoffset < 0) {
+			/*
+			 * Not found or something else bad happened.
+			 */
+			printf("libfdt fdt_path_offset() returned %s\n",
+				fdt_strerror(nodeoffset));
+			return 1;
+		}
+
+		if (subcmd[0] == 'n' || (subcmd[0] == 's' && argc == 5)) {
+			int reqIndex = -1;
+			int startDepth = fdt_node_depth(
+				working_fdt, nodeoffset);
+			int curDepth = startDepth;
+			int curIndex = -1;
+			int nextNodeOffset = fdt_next_node(
+				working_fdt, nodeoffset, &curDepth);
+
+			if (subcmd[0] == 'n')
+				reqIndex = simple_strtoul(argv[5], NULL, 16);
+
+			while (curDepth > startDepth) {
+				if (curDepth == startDepth + 1)
+					curIndex++;
+				if (subcmd[0] == 'n' && curIndex == reqIndex) {
+					const char *nodeName = fdt_get_name(
+					    working_fdt, nextNodeOffset, NULL);
+
+					setenv(var, (char *)nodeName);
+					return 0;
+				}
+				nextNodeOffset = fdt_next_node(
+					working_fdt, nextNodeOffset, &curDepth);
+				if (nextNodeOffset < 0)
+					break;
+			}
+			if (subcmd[0] == 's') {
+				/* get the num nodes at this level */
+				setenv_ulong(var, curIndex + 1);
+			} else {
+				/* node index not found */
+				printf("libfdt node not found\n");
+				return 1;
+			}
+		} else {
+			nodep = fdt_getprop(
+				working_fdt, nodeoffset, prop, &len);
+			if (len == 0) {
+				/* no property value */
+				setenv(var, "");
+				return 0;
+			} else if (len > 0) {
+				if (subcmd[0] == 'v') {
+					int ret;
+
+					ret = fdt_value_setenv(nodep, len, var);
+					if (ret != 0)
+						return ret;
+				} else if (subcmd[0] == 'a') {
+					/* Get address */
+					char buf[11];
+
+					sprintf(buf, "0x%p", nodep);
+					setenv(var, buf);
+				} else if (subcmd[0] == 's') {
+					/* Get size */
+					char buf[11];
+
+					sprintf(buf, "0x%08X", len);
+					setenv(var, buf);
+				} else
+					return CMD_RET_USAGE;
+				return 0;
+			} else {
+				printf("libfdt fdt_getprop(): %s\n",
+					fdt_strerror(len));
+				return 1;
+			}
+		}
+
+	/*
+	 * Print (recursive) / List (single level)
+	 */
+	} else if ((argv[1][0] == 'p') || (argv[1][0] == 'l')) {
+		int depth = MAX_LEVEL;	/* how deep to print */
+		char *pathp;		/* path */
+		char *prop;		/* property */
+		int  ret;		/* return value */
+		static char root[2] = "/";
+
+		/*
+		 * list is an alias for print, but limited to 1 level
+		 */
+		if (argv[1][0] == 'l') {
+			depth = 1;
+		}
+
+		/*
+		 * Get the starting path.  The root node is an oddball,
+		 * the offset is zero and has no name.
+		 */
+		if (argc == 2)
+			pathp = root;
+		else
+			pathp = argv[2];
+		if (argc > 3)
+			prop = argv[3];
+		else
+			prop = NULL;
+
+		ret = fdt_print(pathp, prop, depth);
+		if (ret != 0)
+			return ret;
+
+	/*
+	 * Remove a property/node
+	 */
+	} else if (strncmp(argv[1], "rm", 2) == 0) {
+		int  nodeoffset;	/* node offset from libfdt */
+		int  err;
+
+		/*
+		 * Get the path.  The root node is an oddball, the offset
+		 * is zero and has no name.
+		 */
+		nodeoffset = fdt_path_offset (working_fdt, argv[2]);
+		if (nodeoffset < 0) {
+			/*
+			 * Not found or something else bad happened.
+			 */
+			printf ("libfdt fdt_path_offset() returned %s\n",
+				fdt_strerror(nodeoffset));
+			return 1;
+		}
+		/*
+		 * Do the delete.  A fourth parameter means delete a property,
+		 * otherwise delete the node.
+		 */
+		if (argc > 3) {
+			err = fdt_delprop(working_fdt, nodeoffset, argv[3]);
+			if (err < 0) {
+				printf("libfdt fdt_delprop():  %s\n",
+					fdt_strerror(err));
+				return err;
+			}
+		} else {
+			err = fdt_del_node(working_fdt, nodeoffset);
+			if (err < 0) {
+				printf("libfdt fdt_del_node():  %s\n",
+					fdt_strerror(err));
+				return err;
+			}
+		}
+
+	/*
+	 * Display header info
+	 */
+	} else if (argv[1][0] == 'h') {
+		u32 version = fdt_version(working_fdt);
+		printf("magic:\t\t\t0x%x\n", fdt_magic(working_fdt));
+		printf("totalsize:\t\t0x%x (%d)\n", fdt_totalsize(working_fdt),
+		       fdt_totalsize(working_fdt));
+		printf("off_dt_struct:\t\t0x%x\n",
+		       fdt_off_dt_struct(working_fdt));
+		printf("off_dt_strings:\t\t0x%x\n",
+		       fdt_off_dt_strings(working_fdt));
+		printf("off_mem_rsvmap:\t\t0x%x\n",
+		       fdt_off_mem_rsvmap(working_fdt));
+		printf("version:\t\t%d\n", version);
+		printf("last_comp_version:\t%d\n",
+		       fdt_last_comp_version(working_fdt));
+		if (version >= 2)
+			printf("boot_cpuid_phys:\t0x%x\n",
+				fdt_boot_cpuid_phys(working_fdt));
+		if (version >= 3)
+			printf("size_dt_strings:\t0x%x\n",
+				fdt_size_dt_strings(working_fdt));
+		if (version >= 17)
+			printf("size_dt_struct:\t\t0x%x\n",
+				fdt_size_dt_struct(working_fdt));
+		printf("number mem_rsv:\t\t0x%x\n",
+		       fdt_num_mem_rsv(working_fdt));
+		printf("\n");
+
+	/*
+	 * Set boot cpu id
+	 */
+	} else if (strncmp(argv[1], "boo", 3) == 0) {
+		unsigned long tmp = simple_strtoul(argv[2], NULL, 16);
+		fdt_set_boot_cpuid_phys(working_fdt, tmp);
+
+	/*
+	 * memory command
+	 */
+	} else if (strncmp(argv[1], "me", 2) == 0) {
+		uint64_t addr, size;
+		int err;
+		addr = simple_strtoull(argv[2], NULL, 16);
+		size = simple_strtoull(argv[3], NULL, 16);
+		err = fdt_fixup_memory(working_fdt, addr, size);
+		if (err < 0)
+			return err;
+
+	/*
+	 * mem reserve commands
+	 */
+	} else if (strncmp(argv[1], "rs", 2) == 0) {
+		if (argv[2][0] == 'p') {
+			uint64_t addr, size;
+			int total = fdt_num_mem_rsv(working_fdt);
+			int j, err;
+			printf("index\t\t   start\t\t    size\n");
+			printf("-------------------------------"
+				"-----------------\n");
+			for (j = 0; j < total; j++) {
+				err = fdt_get_mem_rsv(working_fdt, j, &addr, &size);
+				if (err < 0) {
+					printf("libfdt fdt_get_mem_rsv():  %s\n",
+							fdt_strerror(err));
+					return err;
+				}
+				printf("    %x\t%08x%08x\t%08x%08x\n", j,
+					(u32)(addr >> 32),
+					(u32)(addr & 0xffffffff),
+					(u32)(size >> 32),
+					(u32)(size & 0xffffffff));
+			}
+		} else if (argv[2][0] == 'a') {
+			uint64_t addr, size;
+			int err;
+			addr = simple_strtoull(argv[3], NULL, 16);
+			size = simple_strtoull(argv[4], NULL, 16);
+			err = fdt_add_mem_rsv(working_fdt, addr, size);
+
+			if (err < 0) {
+				printf("libfdt fdt_add_mem_rsv():  %s\n",
+					fdt_strerror(err));
+				return err;
+			}
+		} else if (argv[2][0] == 'd') {
+			unsigned long idx = simple_strtoul(argv[3], NULL, 16);
+			int err = fdt_del_mem_rsv(working_fdt, idx);
+
+			if (err < 0) {
+				printf("libfdt fdt_del_mem_rsv():  %s\n",
+					fdt_strerror(err));
+				return err;
+			}
+		} else {
+			/* Unrecognized command */
+			return CMD_RET_USAGE;
+		}
+	}
+#ifdef CONFIG_OF_BOARD_SETUP
+	/* Call the board-specific fixup routine */
+	else if (strncmp(argv[1], "boa", 3) == 0) {
+		int err = ft_board_setup(working_fdt, gd->bd);
+
+		if (err) {
+			printf("Failed to update board information in FDT: %s\n",
+			       fdt_strerror(err));
+			return CMD_RET_FAILURE;
+		}
+	}
+#endif
+#ifdef CONFIG_OF_SYSTEM_SETUP
+	/* Call the board-specific fixup routine */
+	else if (strncmp(argv[1], "sys", 3) == 0) {
+		int err = ft_system_setup(working_fdt, gd->bd);
+
+		if (err) {
+			printf("Failed to add system information to FDT: %s\n",
+			       fdt_strerror(err));
+			return CMD_RET_FAILURE;
+		}
+	}
+#endif
+	/* Create a chosen node */
+	else if (strncmp(argv[1], "cho", 3) == 0) {
+		unsigned long initrd_start = 0, initrd_end = 0;
+
+		if ((argc != 2) && (argc != 4))
+			return CMD_RET_USAGE;
+
+		if (argc == 4) {
+			initrd_start = simple_strtoul(argv[2], NULL, 16);
+			initrd_end = simple_strtoul(argv[3], NULL, 16);
+		}
+
+		fdt_chosen(working_fdt);
+		fdt_initrd(working_fdt, initrd_start, initrd_end);
+
+#if defined(CONFIG_FIT_SIGNATURE)
+	} else if (strncmp(argv[1], "che", 3) == 0) {
+		int cfg_noffset;
+		int ret;
+		unsigned long addr;
+		struct fdt_header *blob;
+
+		if (!working_fdt)
+			return CMD_RET_FAILURE;
+
+		if (argc > 2) {
+			addr = simple_strtoul(argv[2], NULL, 16);
+			blob = map_sysmem(addr, 0);
+		} else {
+			blob = (struct fdt_header *)gd->fdt_blob;
+		}
+		if (!fdt_valid(&blob))
+			return 1;
+
+		gd->fdt_blob = blob;
+		cfg_noffset = fit_conf_get_node(working_fdt, NULL);
+		if (!cfg_noffset) {
+			printf("Could not find configuration node: %s\n",
+			       fdt_strerror(cfg_noffset));
+			return CMD_RET_FAILURE;
+		}
+
+		ret = fit_config_verify(working_fdt, cfg_noffset);
+		if (ret == 0)
+			return CMD_RET_SUCCESS;
+		else
+			return CMD_RET_FAILURE;
+#endif
+
+	}
+	/* resize the fdt */
+	else if (strncmp(argv[1], "re", 2) == 0) {
+		fdt_shrink_to_minimum(working_fdt);
+	}
+	else {
+		/* Unrecognized command */
+		return CMD_RET_USAGE;
+	}
+
+	return 0;
+}
+
+/****************************************************************************/
+
+/**
+ * fdt_valid() - Check if an FDT is valid. If not, change it to NULL
+ *
+ * @blobp: Pointer to FDT pointer
+ * @return 1 if OK, 0 if bad (in which case *blobp is set to NULL)
+ */
+static int fdt_valid(struct fdt_header **blobp)
+{
+	const void *blob = *blobp;
+	int err;
+
+	if (blob == NULL) {
+		printf ("The address of the fdt is invalid (NULL).\n");
+		return 0;
+	}
+
+	err = fdt_check_header(blob);
+	if (err == 0)
+		return 1;	/* valid */
+
+	if (err < 0) {
+		printf("libfdt fdt_check_header(): %s", fdt_strerror(err));
+		/*
+		 * Be more informative on bad version.
+		 */
+		if (err == -FDT_ERR_BADVERSION) {
+			if (fdt_version(blob) <
+			    FDT_FIRST_SUPPORTED_VERSION) {
+				printf (" - too old, fdt %d < %d",
+					fdt_version(blob),
+					FDT_FIRST_SUPPORTED_VERSION);
+			}
+			if (fdt_last_comp_version(blob) >
+			    FDT_LAST_SUPPORTED_VERSION) {
+				printf (" - too new, fdt %d > %d",
+					fdt_version(blob),
+					FDT_LAST_SUPPORTED_VERSION);
+			}
+		}
+		printf("\n");
+		*blobp = NULL;
+		return 0;
+	}
+	return 1;
+}
+
+/****************************************************************************/
+
+/*
+ * Parse the user's input, partially heuristic.  Valid formats:
+ * <0x00112233 4 05>	- an array of cells.  Numbers follow standard
+ *			C conventions.
+ * [00 11 22 .. nn] - byte stream
+ * "string"	- If the the value doesn't start with "<" or "[", it is
+ *			treated as a string.  Note that the quotes are
+ *			stripped by the parser before we get the string.
+ * newval: An array of strings containing the new property as specified
+ *	on the command line
+ * count: The number of strings in the array
+ * data: A bytestream to be placed in the property
+ * len: The length of the resulting bytestream
+ */
+static int fdt_parse_prop(char * const *newval, int count, char *data, int *len)
+{
+	char *cp;		/* temporary char pointer */
+	char *newp;		/* temporary newval char pointer */
+	unsigned long tmp;	/* holds converted values */
+	int stridx = 0;
+
+	*len = 0;
+	newp = newval[0];
+
+	/* An array of cells */
+	if (*newp == '<') {
+		newp++;
+		while ((*newp != '>') && (stridx < count)) {
+			/*
+			 * Keep searching until we find that last ">"
+			 * That way users don't have to escape the spaces
+			 */
+			if (*newp == '\0') {
+				newp = newval[++stridx];
+				continue;
+			}
+
+			cp = newp;
+			tmp = simple_strtoul(cp, &newp, 0);
+			*(__be32 *)data = __cpu_to_be32(tmp);
+			data  += 4;
+			*len += 4;
+
+			/* If the ptr didn't advance, something went wrong */
+			if ((newp - cp) <= 0) {
+				printf("Sorry, I could not convert \"%s\"\n",
+					cp);
+				return 1;
+			}
+
+			while (*newp == ' ')
+				newp++;
+		}
+
+		if (*newp != '>') {
+			printf("Unexpected character '%c'\n", *newp);
+			return 1;
+		}
+	} else if (*newp == '[') {
+		/*
+		 * Byte stream.  Convert the values.
+		 */
+		newp++;
+		while ((stridx < count) && (*newp != ']')) {
+			while (*newp == ' ')
+				newp++;
+			if (*newp == '\0') {
+				newp = newval[++stridx];
+				continue;
+			}
+			if (!isxdigit(*newp))
+				break;
+			tmp = simple_strtoul(newp, &newp, 16);
+			*data++ = tmp & 0xFF;
+			*len    = *len + 1;
+		}
+		if (*newp != ']') {
+			printf("Unexpected character '%c'\n", *newp);
+			return 1;
+		}
+	} else {
+		/*
+		 * Assume it is one or more strings.  Copy it into our
+		 * data area for convenience (including the
+		 * terminating '\0's).
+		 */
+		while (stridx < count) {
+			size_t length = strlen(newp) + 1;
+			strcpy(data, newp);
+			data += length;
+			*len += length;
+			newp = newval[++stridx];
+		}
+	}
+	return 0;
+}
+
+/****************************************************************************/
+
+/*
+ * Heuristic to guess if this is a string or concatenated strings.
+ */
+
+static int is_printable_string(const void *data, int len)
+{
+	const char *s = data;
+
+	/* zero length is not */
+	if (len == 0)
+		return 0;
+
+	/* must terminate with zero or '\n' */
+	if (s[len - 1] != '\0' && s[len - 1] != '\n')
+		return 0;
+
+	/* printable or a null byte (concatenated strings) */
+	while (((*s == '\0') || isprint(*s) || isspace(*s)) && (len > 0)) {
+		/*
+		 * If we see a null, there are three possibilities:
+		 * 1) If len == 1, it is the end of the string, printable
+		 * 2) Next character also a null, not printable.
+		 * 3) Next character not a null, continue to check.
+		 */
+		if (s[0] == '\0') {
+			if (len == 1)
+				return 1;
+			if (s[1] == '\0')
+				return 0;
+		}
+		s++;
+		len--;
+	}
+
+	/* Not the null termination, or not done yet: not printable */
+	if (*s != '\0' || (len != 0))
+		return 0;
+
+	return 1;
+}
+
+
+/*
+ * Print the property in the best format, a heuristic guess.  Print as
+ * a string, concatenated strings, a byte, word, double word, or (if all
+ * else fails) it is printed as a stream of bytes.
+ */
+static void print_data(const void *data, int len)
+{
+	int j;
+
+	/* no data, don't print */
+	if (len == 0)
+		return;
+
+	/*
+	 * It is a string, but it may have multiple strings (embedded '\0's).
+	 */
+	if (is_printable_string(data, len)) {
+		puts("\"");
+		j = 0;
+		while (j < len) {
+			if (j > 0)
+				puts("\", \"");
+			puts(data);
+			j    += strlen(data) + 1;
+			data += strlen(data) + 1;
+		}
+		puts("\"");
+		return;
+	}
+
+	if ((len %4) == 0) {
+		if (len > CONFIG_CMD_FDT_MAX_DUMP)
+			printf("* 0x%p [0x%08x]", data, len);
+		else {
+			const __be32 *p;
+
+			printf("<");
+			for (j = 0, p = data; j < len/4; j++)
+				printf("0x%08x%s", fdt32_to_cpu(p[j]),
+					j < (len/4 - 1) ? " " : "");
+			printf(">");
+		}
+	} else { /* anything else... hexdump */
+		if (len > CONFIG_CMD_FDT_MAX_DUMP)
+			printf("* 0x%p [0x%08x]", data, len);
+		else {
+			const u8 *s;
+
+			printf("[");
+			for (j = 0, s = data; j < len; j++)
+				printf("%02x%s", s[j], j < len - 1 ? " " : "");
+			printf("]");
+		}
+	}
+}
+
+/****************************************************************************/
+
+/*
+ * Recursively print (a portion of) the working_fdt.  The depth parameter
+ * determines how deeply nested the fdt is printed.
+ */
+static int fdt_print(const char *pathp, char *prop, int depth)
+{
+	static char tabs[MAX_LEVEL+1] =
+		"\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t"
+		"\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t";
+	const void *nodep;	/* property node pointer */
+	int  nodeoffset;	/* node offset from libfdt */
+	int  nextoffset;	/* next node offset from libfdt */
+	uint32_t tag;		/* tag */
+	int  len;		/* length of the property */
+	int  level = 0;		/* keep track of nesting level */
+	const struct fdt_property *fdt_prop;
+
+	nodeoffset = fdt_path_offset (working_fdt, pathp);
+	if (nodeoffset < 0) {
+		/*
+		 * Not found or something else bad happened.
+		 */
+		printf ("libfdt fdt_path_offset() returned %s\n",
+			fdt_strerror(nodeoffset));
+		return 1;
+	}
+	/*
+	 * The user passed in a property as well as node path.
+	 * Print only the given property and then return.
+	 */
+	if (prop) {
+		nodep = fdt_getprop (working_fdt, nodeoffset, prop, &len);
+		if (len == 0) {
+			/* no property value */
+			printf("%s %s\n", pathp, prop);
+			return 0;
+		} else if (len > 0) {
+			printf("%s = ", prop);
+			print_data (nodep, len);
+			printf("\n");
+			return 0;
+		} else {
+			printf ("libfdt fdt_getprop(): %s\n",
+				fdt_strerror(len));
+			return 1;
+		}
+	}
+
+	/*
+	 * The user passed in a node path and no property,
+	 * print the node and all subnodes.
+	 */
+	while(level >= 0) {
+		tag = fdt_next_tag(working_fdt, nodeoffset, &nextoffset);
+		switch(tag) {
+		case FDT_BEGIN_NODE:
+			pathp = fdt_get_name(working_fdt, nodeoffset, NULL);
+			if (level <= depth) {
+				if (pathp == NULL)
+					pathp = "/* NULL pointer error */";
+				if (*pathp == '\0')
+					pathp = "/";	/* root is nameless */
+				printf("%s%s {\n",
+					&tabs[MAX_LEVEL - level], pathp);
+			}
+			level++;
+			if (level >= MAX_LEVEL) {
+				printf("Nested too deep, aborting.\n");
+				return 1;
+			}
+			break;
+		case FDT_END_NODE:
+			level--;
+			if (level <= depth)
+				printf("%s};\n", &tabs[MAX_LEVEL - level]);
+			if (level == 0) {
+				level = -1;		/* exit the loop */
+			}
+			break;
+		case FDT_PROP:
+			fdt_prop = fdt_offset_ptr(working_fdt, nodeoffset,
+					sizeof(*fdt_prop));
+			pathp    = fdt_string(working_fdt,
+					fdt32_to_cpu(fdt_prop->nameoff));
+			len      = fdt32_to_cpu(fdt_prop->len);
+			nodep    = fdt_prop->data;
+			if (len < 0) {
+				printf ("libfdt fdt_getprop(): %s\n",
+					fdt_strerror(len));
+				return 1;
+			} else if (len == 0) {
+				/* the property has no value */
+				if (level <= depth)
+					printf("%s%s;\n",
+						&tabs[MAX_LEVEL - level],
+						pathp);
+			} else {
+				if (level <= depth) {
+					printf("%s%s = ",
+						&tabs[MAX_LEVEL - level],
+						pathp);
+					print_data (nodep, len);
+					printf(";\n");
+				}
+			}
+			break;
+		case FDT_NOP:
+			printf("%s/* NOP */\n", &tabs[MAX_LEVEL - level]);
+			break;
+		case FDT_END:
+			return 1;
+		default:
+			if (level <= depth)
+				printf("Unknown tag 0x%08X\n", tag);
+			return 1;
+		}
+		nodeoffset = nextoffset;
+	}
+	return 0;
+}
+
+/********************************************************************/
+#ifdef CONFIG_SYS_LONGHELP
+static char fdt_help_text[] =
+	"addr [-c]  <addr> [<length>]   - Set the [control] fdt location to <addr>\n"
+#ifdef CONFIG_OF_BOARD_SETUP
+	"fdt boardsetup                      - Do board-specific set up\n"
+#endif
+#ifdef CONFIG_OF_SYSTEM_SETUP
+	"fdt systemsetup                     - Do system-specific set up\n"
+#endif
+	"fdt move   <fdt> <newaddr> <length> - Copy the fdt to <addr> and make it active\n"
+	"fdt resize                          - Resize fdt to size + padding to 4k addr\n"
+	"fdt print  <path> [<prop>]          - Recursive print starting at <path>\n"
+	"fdt list   <path> [<prop>]          - Print one level starting at <path>\n"
+	"fdt get value <var> <path> <prop>   - Get <property> and store in <var>\n"
+	"fdt get name <var> <path> <index>   - Get name of node <index> and store in <var>\n"
+	"fdt get addr <var> <path> <prop>    - Get start address of <property> and store in <var>\n"
+	"fdt get size <var> <path> [<prop>]  - Get size of [<property>] or num nodes and store in <var>\n"
+	"fdt set    <path> <prop> [<val>]    - Set <property> [to <val>]\n"
+	"fdt mknode <path> <node>            - Create a new node after <path>\n"
+	"fdt rm     <path> [<prop>]          - Delete the node or <property>\n"
+	"fdt header                          - Display header info\n"
+	"fdt bootcpu <id>                    - Set boot cpuid\n"
+	"fdt memory <addr> <size>            - Add/Update memory node\n"
+	"fdt rsvmem print                    - Show current mem reserves\n"
+	"fdt rsvmem add <addr> <size>        - Add a mem reserve\n"
+	"fdt rsvmem delete <index>           - Delete a mem reserves\n"
+	"fdt chosen [<start> <end>]          - Add/update the /chosen branch in the tree\n"
+	"                                        <start>/<end> - initrd start/end addr\n"
+#if defined(CONFIG_FIT_SIGNATURE)
+	"fdt checksign [<addr>]              - check FIT signature\n"
+	"                                        <start> - addr of key blob\n"
+	"                                                  default gd->fdt_blob\n"
+#endif
+	"NOTE: Dereference aliases by omiting the leading '/', "
+		"e.g. fdt print ethernet0.";
+#endif
+
+U_BOOT_CMD(
+	fdt,	255,	0,	do_fdt,
+	"flattened device tree utility commands", fdt_help_text
+);