fdt: Remove fdtdec_decode_region() function

This function is not used in U-Boot now. Remove it along with its 'memory'
version.

Signed-off-by: Simon Glass <sjg@chromium.org>

include/fdtdec.h

@@ -802,23 +802,6 @@ int fdtdec_get_byte_array(const void *blob, int node, const char *prop_name,
 const u8 *fdtdec_locate_byte_array(const void *blob, int node,
 			     const char *prop_name, int count);
 
-/**
- * Look up a property in a node which contains a memory region address and
- * size. Then return a pointer to this address.
- *
- * The property must hold one address with a length. This is only tested on
- * 32-bit machines.
- *
- * @param blob		FDT blob
- * @param node		node to examine
- * @param prop_name	name of property to find
- * @param basep		Returns base address of region
- * @param size		Returns size of region
- * @return 0 if ok, -1 on error (property not found)
- */
-int fdtdec_decode_region(const void *blob, int node, const char *prop_name,
-			 fdt_addr_t *basep, fdt_size_t *sizep);
-
 /**
  * Obtain an indexed resource from a device property.
  *
@@ -849,34 +832,6 @@ int fdt_get_named_resource(const void *fdt, int node, const char *property,
 			   const char *prop_names, const char *name,
 			   struct fdt_resource *res);
 
-/**
- * Decode a named region within a memory bank of a given type.
- *
- * This function handles selection of a memory region. The region is
- * specified as an offset/size within a particular type of memory.
- *
- * The properties used are:
- *
- *	<mem_type>-memory<suffix> for the name of the memory bank
- *	<mem_type>-offset<suffix> for the offset in that bank
- *
- * The property value must have an offset and a size. The function checks
- * that the region is entirely within the memory bank.5
- *
- * @param blob		FDT blob
- * @param node		Node containing the properties (-1 for /config)
- * @param mem_type	Type of memory to use, which is a name, such as
- *			"u-boot" or "kernel".
- * @param suffix	String to append to the memory/offset
- *			property names
- * @param basep		Returns base of region
- * @param sizep		Returns size of region
- * @return 0 if OK, -ive on error
- */
-int fdtdec_decode_memory_region(const void *blob, int node,
-				const char *mem_type, const char *suffix,
-				fdt_addr_t *basep, fdt_size_t *sizep);
-
 /* Display timings from linux include/video/display_timing.h */
 enum display_flags {
 	DISPLAY_FLAGS_HSYNC_LOW		= 1 << 0,

lib/fdtdec.c

@@ -922,28 +922,6 @@ char *fdtdec_get_config_string(const void *blob, const char *prop_name)
 	return (char *)nodep;
 }
 
-int fdtdec_decode_region(const void *blob, int node, const char *prop_name,
-			 fdt_addr_t *basep, fdt_size_t *sizep)
-{
-	const fdt_addr_t *cell;
-	int len;
-
-	debug("%s: %s: %s\n", __func__, fdt_get_name(blob, node, NULL),
-	      prop_name);
-	cell = fdt_getprop(blob, node, prop_name, &len);
-	if (!cell || (len < sizeof(fdt_addr_t) * 2)) {
-		debug("cell=%p, len=%d\n", cell, len);
-		return -1;
-	}
-
-	*basep = fdt_addr_to_cpu(*cell);
-	*sizep = fdt_size_to_cpu(cell[1]);
-	debug("%s: base=%08lx, size=%lx\n", __func__, (ulong)*basep,
-	      (ulong)*sizep);
-
-	return 0;
-}
-
 u64 fdtdec_get_number(const fdt32_t *ptr, unsigned int cells)
 {
 	u64 number = 0;
@@ -1002,67 +980,6 @@ int fdt_get_named_resource(const void *fdt, int node, const char *property,
 	return fdt_get_resource(fdt, node, property, index, res);
 }
 
-int fdtdec_decode_memory_region(const void *blob, int config_node,
-				const char *mem_type, const char *suffix,
-				fdt_addr_t *basep, fdt_size_t *sizep)
-{
-	char prop_name[50];
-	const char *mem;
-	fdt_size_t size, offset_size;
-	fdt_addr_t base, offset;
-	int node;
-
-	if (config_node == -1) {
-		config_node = fdt_path_offset(blob, "/config");
-		if (config_node < 0) {
-			debug("%s: Cannot find /config node\n", __func__);
-			return -ENOENT;
-		}
-	}
-	if (!suffix)
-		suffix = "";
-
-	snprintf(prop_name, sizeof(prop_name), "%s-memory%s", mem_type,
-		 suffix);
-	mem = fdt_getprop(blob, config_node, prop_name, NULL);
-	if (!mem) {
-		debug("%s: No memory type for '%s', using /memory\n", __func__,
-		      prop_name);
-		mem = "/memory";
-	}
-
-	node = fdt_path_offset(blob, mem);
-	if (node < 0) {
-		debug("%s: Failed to find node '%s': %s\n", __func__, mem,
-		      fdt_strerror(node));
-		return -ENOENT;
-	}
-
-	/*
-	 * Not strictly correct - the memory may have multiple banks. We just
-	 * use the first
-	 */
-	if (fdtdec_decode_region(blob, node, "reg", &base, &size)) {
-		debug("%s: Failed to decode memory region %s\n", __func__,
-		      mem);
-		return -EINVAL;
-	}
-
-	snprintf(prop_name, sizeof(prop_name), "%s-offset%s", mem_type,
-		 suffix);
-	if (fdtdec_decode_region(blob, config_node, prop_name, &offset,
-				 &offset_size)) {
-		debug("%s: Failed to decode memory region '%s'\n", __func__,
-		      prop_name);
-		return -EINVAL;
-	}
-
-	*basep = base + offset;
-	*sizep = offset_size;
-
-	return 0;
-}
-
 static int decode_timing_property(const void *blob, int node, const char *name,
 				  struct timing_entry *result)
 {