Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 155 insertions, 0 deletions

diff --git a/roms/u-boot/drivers/core/of_extra.c b/roms/u-boot/drivers/core/of_extra.c
new file mode 100644
index 000000000..7702beff9
--- /dev/null
+++ b/roms/u-boot/drivers/core/of_extra.c
@@ -0,0 +1,155 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2017 Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <common.h>
+#include <log.h>
+#include <linux/libfdt.h>
+#include <dm/of_access.h>
+#include <dm/of_extra.h>
+#include <dm/ofnode.h>
+
+int ofnode_read_fmap_entry(ofnode node, struct fmap_entry *entry)
+{
+	const char *prop;
+	ofnode subnode;
+
+	if (ofnode_read_u32(node, "image-pos", &entry->offset)) {
+		debug("Node '%s' has bad/missing 'image-pos' property\n",
+		      ofnode_get_name(node));
+		return log_msg_ret("image-pos", -ENOENT);
+	}
+	if (ofnode_read_u32(node, "size", &entry->length)) {
+		debug("Node '%s' has bad/missing 'size' property\n",
+		      ofnode_get_name(node));
+		return log_msg_ret("size", -ENOENT);
+	}
+	entry->used = ofnode_read_s32_default(node, "used", entry->length);
+	prop = ofnode_read_string(node, "compress");
+	if (prop) {
+		if (!strcmp(prop, "lz4"))
+			entry->compress_algo = FMAP_COMPRESS_LZ4;
+		else
+			return log_msg_ret("compression algo", -EINVAL);
+	} else {
+		entry->compress_algo = FMAP_COMPRESS_NONE;
+	}
+	entry->unc_length = ofnode_read_s32_default(node, "uncomp-size",
+						    entry->length);
+	subnode = ofnode_find_subnode(node, "hash");
+	if (ofnode_valid(subnode)) {
+		prop = ofnode_read_prop(subnode, "value", &entry->hash_size);
+
+		/* Assume it is sha256 */
+		entry->hash_algo = prop ? FMAP_HASH_SHA256 : FMAP_HASH_NONE;
+		entry->hash = (uint8_t *)prop;
+	}
+
+	return 0;
+}
+
+int ofnode_decode_region(ofnode 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__, ofnode_get_name(node), prop_name);
+	cell = ofnode_get_property(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;
+}
+
+int ofnode_decode_memory_region(ofnode 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;
+	ofnode node;
+
+	if (!ofnode_valid(config_node)) {
+		config_node = ofnode_path("/config");
+		if (!ofnode_valid(config_node)) {
+			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 = ofnode_read_string(config_node, prop_name);
+	if (!mem) {
+		debug("%s: No memory type for '%s', using /memory\n", __func__,
+		      prop_name);
+		mem = "/memory";
+	}
+
+	node = ofnode_path(mem);
+	if (!ofnode_valid(node)) {
+		debug("%s: Failed to find node '%s'\n", __func__, mem);
+		return -ENOENT;
+	}
+
+	/*
+	 * Not strictly correct - the memory may have multiple banks. We just
+	 * use the first
+	 */
+	if (ofnode_decode_region(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 (ofnode_decode_region(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;
+}
+
+bool ofnode_phy_is_fixed_link(ofnode eth_node, ofnode *phy_node)
+{
+	ofnode node, subnode;
+	int len;
+
+	subnode = ofnode_find_subnode(eth_node, "fixed-link");
+	if (ofnode_valid(subnode)) {
+		/* new binding */
+		node = subnode;
+	} else if (ofnode_get_property(eth_node, "fixed-link", &len) &&
+		   len == (5 * sizeof(__be32))) {
+		/* old binding */
+		node = eth_node;
+	} else {
+		return false;
+	}
+
+	if (phy_node)
+		*phy_node = node;
+
+	return true;
+}