cmd: load: add load command for memory mapped
cp.b is used a lot as a way to load binaries to memory and execute
them, however we may need to integrate this with the efi subsystem to
set it up as a bootdev.
So, introduce a loadm command that will be consistent with the other
loadX commands and will call the efi API's.
ex: loadm $kernel_addr $kernel_addr_r $kernel_size
with this a kernel with CONFIG_EFI_STUB enabled will be loaded and
then subsequently booted with bootefi command.
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/cmd/load.c b/cmd/load.c
index 7e4a552..1224a7f 100644
--- a/cmd/load.c
+++ b/cmd/load.c
@@ -1063,6 +1063,44 @@
#endif
+#if defined(CONFIG_CMD_LOADM)
+static int do_load_memory_bin(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ ulong addr, dest, size;
+ void *src, *dst;
+
+ if (argc != 4)
+ return CMD_RET_USAGE;
+
+ addr = simple_strtoul(argv[1], NULL, 16);
+
+ dest = simple_strtoul(argv[2], NULL, 16);
+
+ size = simple_strtoul(argv[3], NULL, 16);
+
+ if (!size) {
+ printf("loadm: can not load zero bytes\n");
+ return 1;
+ }
+
+ src = map_sysmem(addr, size);
+ dst = map_sysmem(dest, size);
+
+ memcpy(dst, src, size);
+
+ unmap_sysmem(src);
+ unmap_sysmem(dst);
+
+ if (IS_ENABLED(CONFIG_CMD_BOOTEFI))
+ efi_set_bootdev("Mem", "", "", map_sysmem(dest, 0), size);
+
+ printf("loaded bin to memory: size: %lu\n", size);
+
+ return 0;
+}
+#endif
+
/* -------------------------------------------------------------------- */
#if defined(CONFIG_CMD_LOADS)
@@ -1137,3 +1175,13 @@
);
#endif /* CONFIG_CMD_LOADB */
+
+#if defined(CONFIG_CMD_LOADM)
+U_BOOT_CMD(
+ loadm, 4, 0, do_load_memory_bin,
+ "load binary blob from source address to destination address",
+ "[src_addr] [dst_addr] [size]\n"
+ " - load a binary blob from one memory location to other"
+ " from src_addr to dst_addr by size bytes"
+);
+#endif /* CONFIG_CMD_LOADM */