On x86 the SPI ROM can be memory-mapped, at least most of it. Add a way to tell binman the offset from a ROM address to a RAM address.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v1: - Add a way to set the binman ROM offset
include/binman.h | 8 ++++++++ lib/binman.c | 17 +++++++++++++++++ 2 files changed, 25 insertions(+)
diff --git a/include/binman.h b/include/binman.h index b462dc8542..baf49f7876 100644 --- a/include/binman.h +++ b/include/binman.h @@ -20,6 +20,14 @@ struct binman_entry { u32 size; };
+/** + * 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_entry_find() - Find a binman symbol * diff --git a/lib/binman.c b/lib/binman.c index fd7de24bd2..dc3a880882 100644 --- a/lib/binman.c +++ b/lib/binman.c @@ -12,10 +12,21 @@ #include <log.h> #include <malloc.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) @@ -37,6 +48,11 @@ int binman_entry_find(const char *name, struct binman_entry *entry) return 0; }
+void binman_set_rom_offset(int rom_offset) +{ + binman->rom_offset = rom_offset; +} + int binman_init(void) { binman = malloc(sizeof(struct binman_info)); @@ -45,6 +61,7 @@ int binman_init(void) binman->image = ofnode_path("/binman"); if (!ofnode_valid(binman->image)) return log_msg_ret("binman node", -EINVAL); + binman->rom_offset = ROM_OFFSET_NONE;
return 0; }