MIPS: bootm: add "MIPS barebox" handler

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arch/mips/lib/Makefile

@@ -6,3 +6,4 @@ obj-y += ashrdi3.o
 obj-y += memory.o
 
 obj-$(CONFIG_CMD_MIPS_CPUINFO) += cpuinfo.o
+obj-$(CONFIG_CMD_BOOTM)	+= bootm.o

arch/mips/lib/bootm.c

@@ -0,0 +1,43 @@
+#include <boot.h>
+#include <common.h>
+#include <init.h>
+#include <fs.h>
+#include <errno.h>
+#include <binfmt.h>
+
+#include <asm/byteorder.h>
+
+static int do_bootm_barebox(struct image_data *data)
+{
+	void (*barebox)(void);
+
+	barebox = read_file(data->os_file, NULL);
+	if (!barebox)
+		return -EINVAL;
+
+	shutdown_barebox();
+
+	barebox();
+
+	reset_cpu(0);
+}
+
+static struct image_handler barebox_handler = {
+	.name = "MIPS barebox",
+	.bootm = do_bootm_barebox,
+	.filetype = filetype_mips_barebox,
+};
+
+static struct binfmt_hook binfmt_barebox_hook = {
+	.type = filetype_mips_barebox,
+	.exec = "bootm",
+};
+
+static int mips_register_image_handler(void)
+{
+	register_image_handler(&barebox_handler);
+	binfmt_register(&binfmt_barebox_hook);
+
+	return 0;
+}
+late_initcall(mips_register_image_handler);

common/filetype.c

@@ -78,6 +78,8 @@ enum filetype file_detect_type(void *_buf)
 		return filetype_oftree;
 	if (strncmp(buf8, "ANDROID!", 8) == 0)
 		return filetype_aimage;
+	if (strncmp(buf8 + 0x10, "barebox", 7) == 0)
+		return filetype_mips_barebox;
 
 	return filetype_unknown;
 }

include/filetype.h

@@ -17,6 +17,7 @@ enum filetype {
 	filetype_oftree,
 	filetype_aimage,
 	filetype_sh,
+	filetype_mips_barebox,
 };
 
 const char *file_type_to_string(enum filetype f);