* if #NNNN-cells property is 2 then len is 8
* otherwise len is 4
*/
-static int get_cells_len(void *blob, char *nr_cells_name)
+static int get_cells_len(const void *fdt, const char *nr_cells_name)
{
const fdt32_t *cell;
- cell = fdt_getprop(blob, 0, nr_cells_name, NULL);
+ cell = fdt_getprop(fdt, 0, nr_cells_name, NULL);
if (cell && fdt32_to_cpu(*cell) == 2)
return 8;
return 4;
}
-/*
- * Write a 4 or 8 byte big endian cell
- */
-static void write_cell(u8 *addr, u64 val, int size)
-{
- int shift = (size - 1) * 8;
- while (size-- > 0) {
- *addr++ = (val >> shift) & 0xff;
- shift -= 8;
- }
-}
-
/**
* fdt_getprop_u32_default_node - Return a node's property or a default
*
return offset;
}
-#ifdef CONFIG_OF_STDOUT_VIA_ALIAS
-
-#ifdef CONFIG_CONS_INDEX
+/* rename to CONFIG_OF_STDOUT_PATH ? */
+#if defined(OF_STDOUT_PATH)
+static int fdt_fixup_stdout(void *fdt, int chosenoff)
+{
+ return fdt_setprop(fdt, chosenoff, "linux,stdout-path",
+ OF_STDOUT_PATH, strlen(OF_STDOUT_PATH) + 1);
+}
+#elif defined(CONFIG_OF_STDOUT_VIA_ALIAS) && defined(CONFIG_CONS_INDEX)
static void fdt_fill_multisername(char *sername, size_t maxlen)
{
const char *outname = stdio_devices[stdout]->name;
if (strcmp(outname + 1, "serial") > 0)
strncpy(sername, outname + 1, maxlen);
}
-#endif
static int fdt_fixup_stdout(void *fdt, int chosenoff)
{
- int err = 0;
-#ifdef CONFIG_CONS_INDEX
- int node;
+ int err;
+ int aliasoff;
char sername[9] = { 0 };
- const char *path;
+ const void *path;
+ int len;
+ char tmp[256]; /* long enough */
fdt_fill_multisername(sername, sizeof(sername) - 1);
if (!sername[0])
sprintf(sername, "serial%d", CONFIG_CONS_INDEX - 1);
- err = node = fdt_path_offset(fdt, "/aliases");
- if (node >= 0) {
- int len;
- path = fdt_getprop(fdt, node, sername, &len);
- if (path) {
- char *p = malloc(len);
- err = -FDT_ERR_NOSPACE;
- if (p) {
- memcpy(p, path, len);
- err = fdt_setprop(fdt, chosenoff,
- "linux,stdout-path", p, len);
- free(p);
- }
- } else {
- err = len;
- }
+ aliasoff = fdt_path_offset(fdt, "/aliases");
+ if (aliasoff < 0) {
+ err = aliasoff;
+ goto error;
}
-#endif
+
+ path = fdt_getprop(fdt, aliasoff, sername, &len);
+ if (!path) {
+ err = len;
+ goto error;
+ }
+
+ /* fdt_setprop may break "path" so we copy it to tmp buffer */
+ memcpy(tmp, path, len);
+
+ err = fdt_setprop(fdt, chosenoff, "linux,stdout-path", tmp, len);
+error:
if (err < 0)
printf("WARNING: could not set linux,stdout-path %s.\n",
- fdt_strerror(err));
+ fdt_strerror(err));
return err;
}
+#else
+static int fdt_fixup_stdout(void *fdt, int chosenoff)
+{
+ return 0;
+}
#endif
+static inline int fdt_setprop_uxx(void *fdt, int nodeoffset, const char *name,
+ uint64_t val, int is_u64)
+{
+ if (is_u64)
+ return fdt_setprop_u64(fdt, nodeoffset, name, val);
+ else
+ return fdt_setprop_u32(fdt, nodeoffset, name, (uint32_t)val);
+}
+
+
int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end)
{
- int nodeoffset, addr_cell_len;
+ int nodeoffset;
int err, j, total;
- fdt64_t tmp;
+ int is_u64;
uint64_t addr, size;
+ /* just return if the size of initrd is zero */
+ if (initrd_start == initrd_end)
+ return 0;
+
/* find or create "/chosen" node. */
nodeoffset = fdt_find_or_add_subnode(fdt, 0, "chosen");
if (nodeoffset < 0)
return nodeoffset;
- /* just return if initrd_start/end aren't valid */
- if ((initrd_start == 0) || (initrd_end == 0))
- return 0;
-
total = fdt_num_mem_rsv(fdt);
/*
return err;
}
- addr_cell_len = get_cells_len(fdt, "#address-cells");
+ is_u64 = (get_cells_len(fdt, "#address-cells") == 8);
+
+ err = fdt_setprop_uxx(fdt, nodeoffset, "linux,initrd-start",
+ (uint64_t)initrd_start, is_u64);
- write_cell((u8 *)&tmp, initrd_start, addr_cell_len);
- err = fdt_setprop(fdt, nodeoffset,
- "linux,initrd-start", &tmp, addr_cell_len);
if (err < 0) {
printf("WARNING: could not set linux,initrd-start %s.\n",
fdt_strerror(err));
return err;
}
- write_cell((u8 *)&tmp, initrd_end, addr_cell_len);
- err = fdt_setprop(fdt, nodeoffset,
- "linux,initrd-end", &tmp, addr_cell_len);
+
+ err = fdt_setprop_uxx(fdt, nodeoffset, "linux,initrd-end",
+ (uint64_t)initrd_end, is_u64);
+
if (err < 0) {
printf("WARNING: could not set linux,initrd-end %s.\n",
fdt_strerror(err));
return nodeoffset;
str = getenv("bootargs");
- if (str != NULL) {
- err = fdt_setprop(fdt, nodeoffset,
- "bootargs", str, strlen(str)+1);
- if (err < 0)
+ if (str) {
+ err = fdt_setprop(fdt, nodeoffset, "bootargs", str,
+ strlen(str) + 1);
+ if (err < 0) {
printf("WARNING: could not set bootargs %s.\n",
fdt_strerror(err));
+ return err;
+ }
}
-#ifdef CONFIG_OF_STDOUT_VIA_ALIAS
- err = fdt_fixup_stdout(fdt, nodeoffset);
-#endif
-
-#ifdef OF_STDOUT_PATH
- err = fdt_setprop(fdt, nodeoffset, "linux,stdout-path",
- OF_STDOUT_PATH, strlen(OF_STDOUT_PATH)+1);
- if (err < 0)
- printf("WARNING: could not set linux,stdout-path %s.\n",
- fdt_strerror(err));
-#endif
-
- return err;
+ return fdt_fixup_stdout(fdt, nodeoffset);
}
void do_fixup_by_path(void *fdt, const char *path, const char *prop,
do_fixup_by_compat(fdt, compat, prop, &tmp, 4, create);
}
+/*
+ * fdt_pack_reg - pack address and size array into the "reg"-suitable stream
+ */
+static int fdt_pack_reg(const void *fdt, void *buf, uint64_t *address,
+ uint64_t *size, int n)
+{
+ int i;
+ int address_len = get_cells_len(fdt, "#address-cells");
+ int size_len = get_cells_len(fdt, "#size-cells");
+ char *p = buf;
+
+ for (i = 0; i < n; i++) {
+ if (address_len == 8)
+ *(fdt64_t *)p = cpu_to_fdt64(address[i]);
+ else
+ *(fdt32_t *)p = cpu_to_fdt32(address[i]);
+ p += address_len;
+
+ if (size_len == 8)
+ *(fdt64_t *)p = cpu_to_fdt64(size[i]);
+ else
+ *(fdt32_t *)p = cpu_to_fdt32(size[i]);
+ p += size_len;
+ }
+
+ return p - (char *)buf;
+}
+
#ifdef CONFIG_NR_DRAM_BANKS
#define MEMORY_BANKS_MAX CONFIG_NR_DRAM_BANKS
#else
int fdt_fixup_memory_banks(void *blob, u64 start[], u64 size[], int banks)
{
int err, nodeoffset;
- int addr_cell_len, size_cell_len, len;
+ int len;
u8 tmp[MEMORY_BANKS_MAX * 16]; /* Up to 64-bit address + 64-bit size */
- int bank;
if (banks > MEMORY_BANKS_MAX) {
printf("%s: num banks %d exceeds hardcoded limit %d."
return err;
}
- addr_cell_len = get_cells_len(blob, "#address-cells");
- size_cell_len = get_cells_len(blob, "#size-cells");
-
- for (bank = 0, len = 0; bank < banks; bank++) {
- write_cell(tmp + len, start[bank], addr_cell_len);
- len += addr_cell_len;
-
- write_cell(tmp + len, size[bank], size_cell_len);
- len += size_cell_len;
- }
+ len = fdt_pack_reg(blob, tmp, start, size, banks);
err = fdt_setprop(blob, nodeoffset, "reg", tmp, len);
if (err < 0) {
}
/* Resize the fdt to its actual size + a bit of padding */
-int fdt_resize(void *blob)
+int fdt_shrink_to_minimum(void *blob)
{
int i;
uint64_t addr, size;
projects / karo-tx-uboot.git / blobdiff