aboutsummaryrefslogtreecommitdiffstats
path: root/roms/u-boot/include/binman.h
diff options
context:
space:
mode:
Diffstat (limited to 'roms/u-boot/include/binman.h')
-rw-r--r--roms/u-boot/include/binman.h96
1 files changed, 96 insertions, 0 deletions
diff --git a/roms/u-boot/include/binman.h b/roms/u-boot/include/binman.h
new file mode 100644
index 000000000..5958dfb44
--- /dev/null
+++ b/roms/u-boot/include/binman.h
@@ -0,0 +1,96 @@
+/* SPDX-License-Identifier: Intel */
+/*
+ * Access to binman information at runtime
+ *
+ * Copyright 2019 Google LLC
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#ifndef _BINMAN_H_
+#define _BINMAN_H_
+
+#include <dm/ofnode.h>
+
+/**
+ *struct binman_entry - information about a binman entry
+ *
+ * @image_pos: Position of entry in the image
+ * @size: Size of entry
+ */
+struct binman_entry {
+ u32 image_pos;
+ u32 size;
+};
+
+/**
+ * binman_entry_map() - Look up the address of an entry in memory
+ *
+ * @parent: Parent binman node
+ * @name: Name of entry
+ * @bufp: Returns a pointer to the entry
+ * @sizep: Returns the size of the entry
+ * @return 0 on success, -EPERM if the ROM offset is not set, -ENOENT if the
+ * entry cannot be found, other error code other error
+ */
+int binman_entry_map(ofnode parent, const char *name, void **bufp, int *sizep);
+
+/**
+ * binman_set_rom_offset() - Set the ROM memory-map offset
+ *
+ * @rom_offset: Offset from an image_pos to the memory-mapped address. This
+ * tells binman that ROM image_pos x can be addressed at rom_offset + x
+ */
+void binman_set_rom_offset(int rom_offset);
+
+/**
+ * binman_get_rom_offset() - Get the ROM memory-map offset
+ *
+ * @returns offset from an image_pos to the memory-mapped address
+ */
+int binman_get_rom_offset(void);
+
+/**
+ * binman_entry_find() - Find a binman symbol
+ *
+ * This searches the binman information in the device tree for a symbol of the
+ * given name
+ *
+ * @name: Path to entry to examine (e.g. "/read-only/u-boot")
+ * @entry: Returns information about the entry
+ * @return 0 if OK, -ENOENT if the path is not found, other -ve value if the
+ * binman information is invalid (missing image-pos or size)
+ */
+int binman_entry_find(const char *name, struct binman_entry *entry);
+
+/**
+ * binman_section_find_node() - Find a binman node
+ *
+ * @name: Name of node to look for
+ * @return Node that was found, ofnode_null() if not found
+ */
+ofnode binman_section_find_node(const char *name);
+
+/**
+ * binman_select_subnode() - Select a subnode to use to find entries
+ *
+ * Normally binman selects the top-level node for future entry requests, such as
+ * binman_entry_find(). This function allows a subnode to be chosen instead.
+ *
+ * @name: Name of subnode, typically a section. This must be in the top-level
+ * binman node
+ * @return 0 if OK, -EINVAL if there is no /binman node, -ECHILD if multiple
+ * images are being used but the first image is not available, -ENOENT if
+ * the requested subnode cannot be found
+ */
+int binman_select_subnode(const char *name);
+
+/**
+ * binman_init() - Set up the binman symbol information
+ *
+ * This locates the binary symbol information in the device tree ready for use
+ *
+ * @return 0 if OK, -ENOMEM if out of memory, -EINVAL if there is no binman node
+ */
+int binman_init(void);
+
+#endif