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Diffstat (limited to 'common/cmd_fdt.c')
-rw-r--r--common/cmd_fdt.c301
1 files changed, 31 insertions, 270 deletions
diff --git a/common/cmd_fdt.c b/common/cmd_fdt.c
index 968bade62..08fe3512d 100644
--- a/common/cmd_fdt.c
+++ b/common/cmd_fdt.c
@@ -30,9 +30,11 @@
#include <linux/types.h>
#ifdef CONFIG_OF_LIBFDT
+
#include <asm/global_data.h>
#include <fdt.h>
#include <libfdt.h>
+#include <fdt_support.h>
#define MAX_LEVEL 32 /* how deeply nested we will go */
#define SCRATCHPAD 1024 /* bytes of scratchpad memory */
@@ -53,9 +55,6 @@ static char data[SCRATCHPAD];
*/
static int fdt_valid(void);
static void print_data(const void *data, int len);
-static int fdt_chosen(void *fdt, ulong initrd_start, ulong initrd_end);
-static int fdt_env(void *fdt);
-static int fdt_bd_t(void *fdt);
/*
@@ -437,7 +436,7 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
* Create a chosen node
********************************************************************/
} else if (op == 'c') {
- fdt_chosen(fdt, 0, 0);
+ fdt_chosen(fdt, 0, 0, 1);
/********************************************************************
* Create a u-boot-env node
@@ -466,25 +465,36 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
static int fdt_valid(void)
{
+ int err;
+
if (fdt == NULL) {
- printf ("The address of the fdt is invalid.\n");
- return 0;
- }
- if (!fdt || (fdt_magic(fdt) != FDT_MAGIC)) {
- fdt = NULL;
- printf ("Unrecognized fdt: bad magic\n");
- return 0;
- }
- if (fdt_version(fdt) < FDT_FIRST_SUPPORTED_VERSION) {
- printf ("Unsupported fdt version: $d < %d\n",
- FDT_FIRST_SUPPORTED_VERSION, fdt_version(fdt));
- fdt = NULL;
+ printf ("The address of the fdt is invalid (NULL).\n");
return 0;
}
- if (fdt_last_comp_version(fdt) > FDT_LAST_SUPPORTED_VERSION) {
- printf ("Unsupported fdt version: $d > %d\n",
- fdt_version(fdt), FDT_LAST_SUPPORTED_VERSION);
- fdt = NULL;
+
+ err = fdt_check_header(fdt);
+ if (err == 0)
+ return 1; /* valid */
+
+ if (err < 0) {
+ printf("libfdt: %s", fdt_strerror(err));
+ /*
+ * Be more informative on bad version.
+ */
+ if (err == -FDT_ERR_BADVERSION) {
+ if (fdt_version(fdt) < FDT_FIRST_SUPPORTED_VERSION) {
+ printf (" - too old, fdt $d < %d",
+ fdt_version(fdt), FDT_FIRST_SUPPORTED_VERSION);
+ fdt = NULL;
+ }
+ if (fdt_last_comp_version(fdt) > FDT_LAST_SUPPORTED_VERSION) {
+ printf (" - too new, fdt $d > %d",
+ fdt_version(fdt), FDT_LAST_SUPPORTED_VERSION);
+ fdt = NULL;
+ }
+ return 0;
+ }
+ printf("\n");
return 0;
}
return 1;
@@ -593,255 +603,6 @@ static void print_data(const void *data, int len)
/********************************************************************/
-static int fdt_chosen(void *fdt, ulong initrd_start, ulong initrd_end)
-{
- bd_t *bd = gd->bd;
- int nodeoffset;
- int err;
- u32 tmp; /* used to set 32 bit integer properties */
- char *str; /* used to set string properties */
- ulong clock;
-
- if (initrd_start && initrd_end) {
- err = fdt_add_reservemap_entry(fdt,
- initrd_start, initrd_end - initrd_start + 1);
- if (err < 0) {
- printf("libfdt: %s\n", fdt_strerror(err));
- return err;
- }
- }
-
- /*
- * See if we already have a "chosen" node, create it if not.
- */
- nodeoffset = fdt_path_offset (fdt, "/chosen");
- if (nodeoffset < 0) {
- /*
- * Create a new node "/chosen" (offset 0 is root level)
- */
- nodeoffset = fdt_add_subnode(fdt, 0, "chosen");
- if (nodeoffset < 0) {
- printf("libfdt: %s\n", fdt_strerror(nodeoffset));
- return nodeoffset;
- }
- }
-
- str = getenv("bootargs");
- if (str != NULL) {
- err = fdt_setprop(fdt, nodeoffset, "bootargs", str, strlen(str)+1);
- if (err < 0)
- printf("libfdt: %s\n", fdt_strerror(err));
- }
- if (initrd_start && initrd_end) {
- tmp = __cpu_to_be32(initrd_start);
- err = fdt_setprop(fdt, nodeoffset, "linux,initrd-start", &tmp, sizeof(tmp));
- if (err < 0)
- printf("libfdt: %s\n", fdt_strerror(err));
- tmp = __cpu_to_be32(initrd_end);
- err = fdt_setprop(fdt, nodeoffset, "linux,initrd-end", &tmp, sizeof(tmp));
- if (err < 0)
- printf("libfdt: %s\n", fdt_strerror(err));
- }
-#ifdef OF_STDOUT_PATH
- err = fdt_setprop(fdt, nodeoffset, "linux,stdout-path", OF_STDOUT_PATH, strlen(OF_STDOUT_PATH)+1);
- if (err < 0)
- printf("libfdt: %s\n", fdt_strerror(err));
-#endif
-
- nodeoffset = fdt_path_offset (fdt, "/cpus");
- if (nodeoffset >= 0) {
- clock = cpu_to_be32(bd->bi_intfreq);
- err = fdt_setprop(fdt, nodeoffset, "clock-frequency", &clock, 4);
- if (err < 0)
- printf("libfdt: %s\n", fdt_strerror(err));
- }
-#ifdef OF_TBCLK
- nodeoffset = fdt_path_offset (fdt, "/cpus/" OF_CPU "/timebase-frequency");
- if (nodeoffset >= 0) {
- clock = cpu_to_be32(OF_TBCLK);
- err = fdt_setprop(fdt, nodeoffset, "clock-frequency", &clock, 4);
- if (err < 0)
- printf("libfdt: %s\n", fdt_strerror(err));
- }
-#endif
-}
-
-/********************************************************************/
-
-#ifdef CONFIG_OF_HAS_BD_T
-
-/* Function that returns a character from the environment */
-extern uchar(*env_get_char) (int);
-
-#define BDM(x) { .name = #x, .offset = offsetof(bd_t, bi_ ##x ) }
-
-static const struct {
- const char *name;
- int offset;
-} bd_map[] = {
- BDM(memstart),
- BDM(memsize),
- BDM(flashstart),
- BDM(flashsize),
- BDM(flashoffset),
- BDM(sramstart),
- BDM(sramsize),
-#if defined(CONFIG_5xx) || defined(CONFIG_8xx) || defined(CONFIG_8260) \
- || defined(CONFIG_E500)
- BDM(immr_base),
-#endif
-#if defined(CONFIG_MPC5xxx)
- BDM(mbar_base),
-#endif
-#if defined(CONFIG_MPC83XX)
- BDM(immrbar),
-#endif
-#if defined(CONFIG_MPC8220)
- BDM(mbar_base),
- BDM(inpfreq),
- BDM(pcifreq),
- BDM(pevfreq),
- BDM(flbfreq),
- BDM(vcofreq),
-#endif
- BDM(bootflags),
- BDM(ip_addr),
- BDM(intfreq),
- BDM(busfreq),
-#ifdef CONFIG_CPM2
- BDM(cpmfreq),
- BDM(brgfreq),
- BDM(sccfreq),
- BDM(vco),
-#endif
-#if defined(CONFIG_MPC5xxx)
- BDM(ipbfreq),
- BDM(pcifreq),
-#endif
- BDM(baudrate),
-};
-
-static int fdt_env(void *fdt)
-{
- int nodeoffset;
- int err;
- int k, nxt;
- int i;
- static char tmpenv[256];
-
- /*
- * See if we already have a "u-boot-env" node, delete it if so.
- * Then create a new empty node.
- */
- nodeoffset = fdt_path_offset (fdt, "/u-boot-env");
- if (nodeoffset >= 0) {
- err = fdt_del_node(fdt, nodeoffset);
- if (err < 0) {
- printf("libfdt: %s\n", fdt_strerror(err));
- return err;
- }
- }
- /*
- * Create a new node "/u-boot-env" (offset 0 is root level)
- */
- nodeoffset = fdt_add_subnode(fdt, 0, "u-boot-env");
- if (nodeoffset < 0) {
- printf("libfdt: %s\n", fdt_strerror(nodeoffset));
- return nodeoffset;
- }
-
- for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) {
- char *s, *lval, *rval;
-
- /*
- * Find the end of the name=definition
- */
- for (nxt = i; env_get_char(nxt) != '\0'; ++nxt)
- ;
- s = tmpenv;
- for (k = i; k < nxt && s < &tmpenv[sizeof(tmpenv) - 1]; ++k)
- *s++ = env_get_char(k);
- *s++ = '\0';
- lval = tmpenv;
- /*
- * Find the first '=': it separates the name from the value
- */
- s = strchr(tmpenv, '=');
- if (s != NULL) {
- *s++ = '\0';
- rval = s;
- } else
- continue;
- err = fdt_setprop(fdt, nodeoffset, lval, rval, strlen(rval)+1);
- if (err < 0) {
- printf("\"%s\" - libfdt: %s\n", lval, fdt_strerror(err));
- return err;
- }
- }
- return 0;
-}
-#endif /* CONFIG_OF_HAS_UBOOT_ENV */
-
-/********************************************************************/
-
-#ifdef CONFIG_OF_HAS_BD_T
-static int fdt_bd_t(void *fdt)
-{
- bd_t *bd = gd->bd;
- int nodeoffset;
- int err;
- u32 tmp; /* used to set 32 bit integer properties */
- int i;
-
- /*
- * See if we already have a "bd_t" node, delete it if so.
- * Then create a new empty node.
- */
- nodeoffset = fdt_path_offset (fdt, "/bd_t");
- if (nodeoffset >= 0) {
- err = fdt_del_node(fdt, nodeoffset);
- if (err < 0) {
- printf("libfdt: %s\n", fdt_strerror(err));
- return err;
- }
- }
- /*
- * Create a new node "/bd_t" (offset 0 is root level)
- */
- nodeoffset = fdt_add_subnode(fdt, 0, "bd_t");
- if (nodeoffset < 0) {
- printf("libfdt: %s\n", fdt_strerror(nodeoffset));
- return nodeoffset;
- }
- /*
- * Use the string/pointer structure to create the entries...
- */
- for (i = 0; i < sizeof(bd_map)/sizeof(bd_map[0]); i++) {
- tmp = cpu_to_be32(getenv("bootargs"));
- err = fdt_setprop(fdt, nodeoffset, bd_map[i].name, &tmp, sizeof(tmp));
- if (err < 0)
- printf("libfdt: %s\n", fdt_strerror(err));
- }
- /*
- * Add a couple of oddball entries...
- */
- err = fdt_setprop(fdt, nodeoffset, "enetaddr", &bd->bi_enetaddr, 6);
- if (err < 0)
- printf("libfdt: %s\n", fdt_strerror(err));
- err = fdt_setprop(fdt, nodeoffset, "ethspeed", &bd->bi_ethspeed, 4);
- if (err < 0)
- printf("libfdt: %s\n", fdt_strerror(err));
-
-#ifdef CONFIG_OF_BOARD_SETUP
- ft_board_setup(fdt, bd);
-#endif
-
- return 0;
-}
-#endif /* CONFIG_OF_HAS_BD_T */
-
-/********************************************************************/
-
U_BOOT_CMD(
fdt, 5, 0, do_fdt,
"fdt - flattened device tree utility commands\n",
@@ -871,4 +632,4 @@ U_BOOT_CMD(
" fdt set /cpus \"#address-cells\" \"[00 00 00 01]\"\n"
);
-#endif /* CONFIG_OF_FLAT_TREE */
+#endif /* CONFIG_OF_LIBFDT */
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