summaryrefslogtreecommitdiff
path: root/cmd/booti.c
diff options
context:
space:
mode:
authorTom Rini <trini@konsulko.com>2016-08-12 08:31:15 -0400
committerTom Rini <trini@konsulko.com>2016-08-20 11:35:07 -0400
commit5db28905c952560843212236963e9f711341cad5 (patch)
tree9e2546824158101b69ac0e2a102d7c34920c9d69 /cmd/booti.c
parentf2a9942fbc47491cc5f5151670c42d43dc0544cb (diff)
downloadu-boot-imx-5db28905c952560843212236963e9f711341cad5.zip
u-boot-imx-5db28905c952560843212236963e9f711341cad5.tar.gz
u-boot-imx-5db28905c952560843212236963e9f711341cad5.tar.bz2
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>
Diffstat (limited to 'cmd/booti.c')
-rw-r--r--cmd/booti.c161
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
+);