cmd: Split 'bootz' and 'booti' out from 'bootm'

The bootz and booti commands rely on common functionality that is found
in common/bootm.c and common/bootm_os.c.  They do not however rely on
the rest of cmd/bootm.c to be implemented so split them into their own
files.  Have various Makefiles include the required infrastructure for
CONFIG_CMD_BOOT[IZ] as well as CONFIG_CMD_BOOTM.  Move the declaration
of 'images' over to common/bootm.c.

Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Tom Rini <trini@konsulko.com>

1 files changed, 161 insertions, 0 deletions

diff --git a/cmd/booti.c b/cmd/booti.c
new file mode 100644
index 0000000..6c1c998
--- /dev/null
+++ b/cmd/booti.c
@@ -0,0 +1,161 @@
+/*
+ * (C) Copyright 2000-2009
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <bootm.h>
+#include <command.h>
+#include <image.h>
+#include <lmb.h>
+#include <mapmem.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* See Documentation/arm64/booting.txt in the Linux kernel */
+struct Image_header {
+	uint32_t	code0;		/* Executable code */
+	uint32_t	code1;		/* Executable code */
+	uint64_t	text_offset;	/* Image load offset, LE */
+	uint64_t	image_size;	/* Effective Image size, LE */
+	uint64_t	res1;		/* reserved */
+	uint64_t	res2;		/* reserved */
+	uint64_t	res3;		/* reserved */
+	uint64_t	res4;		/* reserved */
+	uint32_t	magic;		/* Magic number */
+	uint32_t	res5;
+};
+
+#define LINUX_ARM64_IMAGE_MAGIC	0x644d5241
+
+static int booti_setup(bootm_headers_t *images)
+{
+	struct Image_header *ih;
+	uint64_t dst;
+	uint64_t image_size;
+
+	ih = (struct Image_header *)map_sysmem(images->ep, 0);
+
+	if (ih->magic != le32_to_cpu(LINUX_ARM64_IMAGE_MAGIC)) {
+		puts("Bad Linux ARM64 Image magic!\n");
+		return 1;
+	}
+	
+	if (ih->image_size == 0) {
+		puts("Image lacks image_size field, assuming 16MiB\n");
+		image_size = 16 << 20;
+	} else {
+		image_size = le64_to_cpu(ih->image_size);
+	}
+
+	/*
+	 * If we are not at the correct run-time location, set the new
+	 * correct location and then move the image there.
+	 */
+	dst = gd->bd->bi_dram[0].start + le64_to_cpu(ih->text_offset);
+
+	unmap_sysmem(ih);
+
+	if (images->ep != dst) {
+		void *src;
+
+		debug("Moving Image from 0x%lx to 0x%llx\n", images->ep, dst);
+
+		src = (void *)images->ep;
+		images->ep = dst;
+		memmove((void *)dst, src, image_size);
+	}
+
+	return 0;
+}
+
+/*
+ * Image booting support
+ */
+static int booti_start(cmd_tbl_t *cmdtp, int flag, int argc,
+			char * const argv[], bootm_headers_t *images)
+{
+	int ret;
+	struct Image_header *ih;
+
+	ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START,
+			      images, 1);
+
+	/* Setup Linux kernel Image entry point */
+	if (!argc) {
+		images->ep = load_addr;
+		debug("*  kernel: default image load address = 0x%08lx\n",
+				load_addr);
+	} else {
+		images->ep = simple_strtoul(argv[0], NULL, 16);
+		debug("*  kernel: cmdline image address = 0x%08lx\n",
+			images->ep);
+	}
+
+	ret = booti_setup(images);
+	if (ret != 0)
+		return 1;
+
+	ih = (struct Image_header *)map_sysmem(images->ep, 0);
+
+	lmb_reserve(&images->lmb, images->ep, le32_to_cpu(ih->image_size));
+
+	unmap_sysmem(ih);
+
+	/*
+	 * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
+	 * have a header that provide this informaiton.
+	 */
+	if (bootm_find_images(flag, argc, argv))
+		return 1;
+
+	return 0;
+}
+
+int do_booti(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	int ret;
+
+	/* Consume 'booti' */
+	argc--; argv++;
+
+	if (booti_start(cmdtp, flag, argc, argv, &images))
+		return 1;
+
+	/*
+	 * We are doing the BOOTM_STATE_LOADOS state ourselves, so must
+	 * disable interrupts ourselves
+	 */
+	bootm_disable_interrupts();
+
+	images.os.os = IH_OS_LINUX;
+	ret = do_bootm_states(cmdtp, flag, argc, argv,
+			      BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
+			      BOOTM_STATE_OS_GO,
+			      &images, 1);
+
+	return ret;
+}
+
+#ifdef CONFIG_SYS_LONGHELP
+static char booti_help_text[] =
+	"[addr [initrd[:size]] [fdt]]\n"
+	"    - boot arm64 Linux Image stored in memory\n"
+	"\tThe argument 'initrd' is optional and specifies the address\n"
+	"\tof an initrd in memory. The optional parameter ':size' allows\n"
+	"\tspecifying the size of a RAW initrd.\n"
+#if defined(CONFIG_OF_LIBFDT)
+	"\tSince booting a Linux kernel requires a flat device-tree, a\n"
+	"\tthird argument providing the address of the device-tree blob\n"
+	"\tis required. To boot a kernel with a device-tree blob but\n"
+	"\twithout an initrd image, use a '-' for the initrd argument.\n"
+#endif
+	"";
+#endif
+
+U_BOOT_CMD(
+	booti,	CONFIG_SYS_MAXARGS,	1,	do_booti,
+	"boot arm64 Linux Image image from memory", booti_help_text
+);