#include <common.h>
#include <binman.h>
#include <dm.h>
+#include <log.h>
+#include <malloc.h>
+#include <mapmem.h>
+/**
+ * struct binman_info - Information needed by the binman library
+ *
+ * @image: Node describing the image we are running from
+ * @rom_offset: Offset from an image_pos to the memory-mapped address, or
+ * ROM_OFFSET_NONE if the ROM is not memory-mapped. Can be positive or
+ * negative
+ */
struct binman_info {
ofnode image;
+ int rom_offset;
};
+#define ROM_OFFSET_NONE (-1)
+
static struct binman_info *binman;
-int binman_entry_find(const char *name, struct binman_entry *entry)
+static int binman_entry_find_internal(ofnode node, const char *name,
+ struct binman_entry *entry)
{
- ofnode node;
int ret;
- node = ofnode_find_subnode(binman->image, name);
if (!ofnode_valid(node))
- return log_msg_ret("no binman node", -ENOENT);
+ node = binman->image;
+ node = ofnode_find_subnode(node, name);
+ if (!ofnode_valid(node))
+ return log_msg_ret("node", -ENOENT);
ret = ofnode_read_u32(node, "image-pos", &entry->image_pos);
if (ret)
- return log_msg_ret("bad binman node1", ret);
+ return log_msg_ret("image-pos", ret);
ret = ofnode_read_u32(node, "size", &entry->size);
if (ret)
- return log_msg_ret("bad binman node2", ret);
+ return log_msg_ret("size", ret);
return 0;
}
+int binman_entry_find(const char *name, struct binman_entry *entry)
+{
+ return binman_entry_find_internal(binman->image, name, entry);
+}
+
+int binman_entry_map(ofnode parent, const char *name, void **bufp, int *sizep)
+{
+ struct binman_entry entry;
+ int ret;
+
+ if (binman->rom_offset == ROM_OFFSET_NONE)
+ return -EPERM;
+ ret = binman_entry_find_internal(parent, name, &entry);
+ if (ret)
+ return log_msg_ret("entry", ret);
+ if (sizep)
+ *sizep = entry.size;
+ *bufp = map_sysmem(entry.image_pos + binman->rom_offset, entry.size);
+
+ return 0;
+}
+
+ofnode binman_section_find_node(const char *name)
+{
+ return ofnode_find_subnode(binman->image, name);
+}
+
+void binman_set_rom_offset(int rom_offset)
+{
+ binman->rom_offset = rom_offset;
+}
+
+int binman_get_rom_offset(void)
+{
+ return binman->rom_offset;
+}
+
int binman_init(void)
{
binman = malloc(sizeof(struct binman_info));
binman->image = ofnode_path("/binman");
if (!ofnode_valid(binman->image))
return log_msg_ret("binman node", -EINVAL);
+ if (ofnode_read_bool(binman->image, "multiple-images")) {
+ ofnode node = ofnode_first_subnode(binman->image);
+
+ if (!ofnode_valid(node))
+ return log_msg_ret("first image", -ENOENT);
+ binman->image = node;
+ }
+ binman_set_rom_offset(ROM_OFFSET_NONE);
return 0;
}