* (C) Copyright 2007
* Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com
*
- * Copyright 2010 Freescale Semiconductor, Inc.
+ * Copyright 2010-2011 Freescale Semiconductor, Inc.
*
* See file CREDITS for list of people who contributed to this
* project.
* Convenience function to find a node and return it's property or a
* default value if it doesn't exist.
*/
-u32 fdt_getprop_u32_default(void *fdt, const char *path, const char *prop,
- const u32 dflt)
+u32 fdt_getprop_u32_default(const void *fdt, const char *path,
+ const char *prop, const u32 dflt)
{
const u32 *val;
int off;
val = fdt_getprop(fdt, off, prop, NULL);
if (val)
- return *val;
+ return fdt32_to_cpu(*val);
else
return dflt;
}
const u32 *cell;
cell = fdt_getprop(blob, 0, nr_cells_name, NULL);
- if (cell && *cell == 2)
+ if (cell && fdt32_to_cpu(*cell) == 2)
return 8;
return 4;
total = fdt_num_mem_rsv(blob);
for (i = 0; i < total; i++) {
fdt_get_mem_rsv(blob, i, &addr, &size);
- if (addr == (uint64_t)(u32)blob) {
+ if (addr == (uintptr_t)blob) {
fdt_del_mem_rsv(blob, i);
break;
}
fdt_size_dt_strings(blob) + 5 * sizeof(struct fdt_reserve_entry);
/* Make it so the fdt ends on a page boundary */
- actualsize = ALIGN(actualsize + ((uint)blob & 0xfff), 0x1000);
- actualsize = actualsize - ((uint)blob & 0xfff);
+ actualsize = ALIGN(actualsize + ((uintptr_t)blob & 0xfff), 0x1000);
+ actualsize = actualsize - ((uintptr_t)blob & 0xfff);
/* Change the fdt header to reflect the correct size */
fdt_set_totalsize(blob, actualsize);
/* Add the new reservation */
- ret = fdt_add_mem_rsv(blob, (uint)blob, actualsize);
+ ret = fdt_add_mem_rsv(blob, (uintptr_t)blob, actualsize);
if (ret < 0)
return ret;
*/
int fdt_alloc_phandle(void *blob)
{
- int offset, len, phandle = 0;
- const u32 *val;
+ int offset, phandle = 0;
for (offset = fdt_next_node(blob, -1, NULL); offset >= 0;
offset = fdt_next_node(blob, offset, NULL)) {
- val = fdt_getprop(blob, offset, "linux,phandle", &len);
- if (val)
- phandle = max(*val, phandle);
+ phandle = max(phandle, fdt_get_phandle(blob, offset));
}
return phandle + 1;
}
+/*
+ * fdt_set_phandle: Create a phandle property for the given node
+ *
+ * @fdt: ptr to device tree
+ * @nodeoffset: node to update
+ * @phandle: phandle value to set (must be unique)
+ */
+int fdt_set_phandle(void *fdt, int nodeoffset, uint32_t phandle)
+{
+ int ret;
+
+#ifdef DEBUG
+ int off = fdt_node_offset_by_phandle(fdt, phandle);
+
+ if ((off >= 0) && (off != nodeoffset)) {
+ char buf[64];
+
+ fdt_get_path(fdt, nodeoffset, buf, sizeof(buf));
+ printf("Trying to update node %s with phandle %u ",
+ buf, phandle);
+
+ fdt_get_path(fdt, off, buf, sizeof(buf));
+ printf("that already exists in node %s.\n", buf);
+ return -FDT_ERR_BADPHANDLE;
+ }
+#endif
+
+ ret = fdt_setprop_cell(fdt, nodeoffset, "phandle", phandle);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * For now, also set the deprecated "linux,phandle" property, so that we
+ * don't break older kernels.
+ */
+ ret = fdt_setprop_cell(fdt, nodeoffset, "linux,phandle", phandle);
+
+ return ret;
+}
+
+/*
+ * fdt_create_phandle: Create a phandle property for the given node
+ *
+ * @fdt: ptr to device tree
+ * @nodeoffset: node to update
+ */
+unsigned int fdt_create_phandle(void *fdt, int nodeoffset)
+{
+ /* see if there is a phandle already */
+ int phandle = fdt_get_phandle(fdt, nodeoffset);
+
+ /* if we got 0, means no phandle so create one */
+ if (phandle == 0) {
+ int ret;
+
+ phandle = fdt_alloc_phandle(fdt);
+ ret = fdt_set_phandle(fdt, nodeoffset, phandle);
+ if (ret < 0) {
+ printf("Can't set phandle %u: %s\n", phandle,
+ fdt_strerror(ret));
+ return 0;
+ }
+ }
+
+ return phandle;
+}
+
+/*
+ * fdt_set_node_status: Set status for the given node
+ *
+ * @fdt: ptr to device tree
+ * @nodeoffset: node to update
+ * @status: FDT_STATUS_OKAY, FDT_STATUS_DISABLED,
+ * FDT_STATUS_FAIL, FDT_STATUS_FAIL_ERROR_CODE
+ * @error_code: optional, only used if status is FDT_STATUS_FAIL_ERROR_CODE
+ */
+int fdt_set_node_status(void *fdt, int nodeoffset,
+ enum fdt_status status, unsigned int error_code)
+{
+ char buf[16];
+ int ret = 0;
+
+ if (nodeoffset < 0)
+ return nodeoffset;
+
+ switch (status) {
+ case FDT_STATUS_OKAY:
+ ret = fdt_setprop_string(fdt, nodeoffset, "status", "okay");
+ break;
+ case FDT_STATUS_DISABLED:
+ ret = fdt_setprop_string(fdt, nodeoffset, "status", "disabled");
+ break;
+ case FDT_STATUS_FAIL:
+ ret = fdt_setprop_string(fdt, nodeoffset, "status", "fail");
+ break;
+ case FDT_STATUS_FAIL_ERROR_CODE:
+ sprintf(buf, "fail-%d", error_code);
+ ret = fdt_setprop_string(fdt, nodeoffset, "status", buf);
+ break;
+ default:
+ printf("Invalid fdt status: %x\n", status);
+ ret = -1;
+ break;
+ }
+
+ return ret;
+}
+
+/*
+ * fdt_set_status_by_alias: Set status for the given node given an alias
+ *
+ * @fdt: ptr to device tree
+ * @alias: alias of node to update
+ * @status: FDT_STATUS_OKAY, FDT_STATUS_DISABLED,
+ * FDT_STATUS_FAIL, FDT_STATUS_FAIL_ERROR_CODE
+ * @error_code: optional, only used if status is FDT_STATUS_FAIL_ERROR_CODE
+ */
+int fdt_set_status_by_alias(void *fdt, const char* alias,
+ enum fdt_status status, unsigned int error_code)
+{
+ int offset = fdt_path_offset(fdt, alias);
+
+ return fdt_set_node_status(fdt, offset, status, error_code);
+}
+
#if defined(CONFIG_VIDEO)
int fdt_add_edid(void *blob, const char *compat, unsigned char *edid_buf)
{
projects / karo-tx-uboot.git / blobdiff