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-rw-r--r--common/cmd_fdt.c1065
1 files changed, 0 insertions, 1065 deletions
diff --git a/common/cmd_fdt.c b/common/cmd_fdt.c
deleted file mode 100644
index 4c18962d85..0000000000
--- a/common/cmd_fdt.c
+++ /dev/null
@@ -1,1065 +0,0 @@
-/*
- * (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
-);
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