Add additional fdt fixup helper functions
Added the following fdt fixup helpers:
* do_fixup_by_prop{_u32} - Find matching nodes by property name/value
* do_fixup_by_compat{_u32} - Find matching nodes by compat
The _u32 variants work the same only the property they are setting
is know to be a 32-bit integer instead of a byte buffer.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/common/fdt_support.c b/common/fdt_support.c
index e848386..c67bb3d 100644
--- a/common/fdt_support.c
+++ b/common/fdt_support.c
@@ -386,6 +386,61 @@
do_fixup_by_path(fdt, path, prop, &val, sizeof(val), create);
}
+void do_fixup_by_prop(void *fdt,
+ const char *pname, const void *pval, int plen,
+ const char *prop, const void *val, int len,
+ int create)
+{
+ int off;
+#if defined(DEBUG)
+ int i;
+ debug("Updating property '%s/%s' = ", node, prop);
+ for (i = 0; i < len; i++)
+ debug(" %.2x", *(u8*)(val+i));
+ debug("\n");
+#endif
+ off = fdt_node_offset_by_prop_value(fdt, -1, pname, pval, plen);
+ while (off != -FDT_ERR_NOTFOUND) {
+ if (create || (fdt_get_property(fdt, off, prop, 0) != NULL))
+ fdt_setprop(fdt, off, prop, val, len);
+ off = fdt_node_offset_by_prop_value(fdt, off, pname, pval, plen);
+ }
+}
+
+void do_fixup_by_prop_u32(void *fdt,
+ const char *pname, const void *pval, int plen,
+ const char *prop, u32 val, int create)
+{
+ val = cpu_to_fdt32(val);
+ do_fixup_by_prop(fdt, pname, pval, plen, prop, &val, 4, create);
+}
+
+void do_fixup_by_compat(void *fdt, const char *compat,
+ const char *prop, const void *val, int len, int create)
+{
+ int off = -1;
+#if defined(DEBUG)
+ int i;
+ debug("Updating property '%s/%s' = ", node, prop);
+ for (i = 0; i < len; i++)
+ debug(" %.2x", *(u8*)(val+i));
+ debug("\n");
+#endif
+ off = fdt_node_offset_by_compatible(fdt, -1, compat);
+ while (off != -FDT_ERR_NOTFOUND) {
+ if (create || (fdt_get_property(fdt, off, prop, 0) != NULL))
+ fdt_setprop(fdt, off, prop, val, len);
+ off = fdt_node_offset_by_compatible(fdt, off, compat);
+ }
+}
+
+void do_fixup_by_compat_u32(void *fdt, const char *compat,
+ const char *prop, u32 val, int create)
+{
+ val = cpu_to_fdt32(val);
+ do_fixup_by_compat(fdt, compat, prop, &val, 4, create);
+}
+
void fdt_fixup_ethernet(void *fdt, bd_t *bd)
{
int node;