mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-27 20:38:52 +09:00
![Miao Yan](/assets/img/avatar_default.png)
In commit "5c427e4: use BOOTM_STATE_OS_CMDLINE flag for plain bootm" and "3d187b3: Only pass BOOTM_STATE_OS_CMDLINE on PowerPC/MIPS", BOOTM_STATE_OS_CMDLINE was added to do_bootm for PowerPC and MIPS. This breaks other OSes (vxworks, netbsd, plan9,...) that don't support subcommand processing, e.g. they all contain the following code in their do_bootm_xxx(): if (flag & BOOTM_STATE_OS_PREP) return 0; if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) return 1; which will result a "subcommand not supported" error. This patch changes the above logic to: /* if not go command, pretend everything to be OK */ if (flag != BOOTM_STATE_OS_GO) return 0; Signed-off-by: Miao Yan <miao.yan@windriver.com>
1863 lines
46 KiB
C
1863 lines
46 KiB
C
/*
|
|
* (C) Copyright 2000-2009
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
|
|
/*
|
|
* Boot support
|
|
*/
|
|
#include <common.h>
|
|
#include <watchdog.h>
|
|
#include <command.h>
|
|
#include <image.h>
|
|
#include <malloc.h>
|
|
#include <u-boot/zlib.h>
|
|
#include <bzlib.h>
|
|
#include <environment.h>
|
|
#include <lmb.h>
|
|
#include <linux/ctype.h>
|
|
#include <asm/byteorder.h>
|
|
#include <asm/io.h>
|
|
#include <linux/compiler.h>
|
|
|
|
#if defined(CONFIG_CMD_USB)
|
|
#include <usb.h>
|
|
#endif
|
|
|
|
#ifdef CONFIG_SYS_HUSH_PARSER
|
|
#include <hush.h>
|
|
#endif
|
|
|
|
#if defined(CONFIG_OF_LIBFDT)
|
|
#include <libfdt.h>
|
|
#include <fdt_support.h>
|
|
#endif
|
|
|
|
#ifdef CONFIG_LZMA
|
|
#include <lzma/LzmaTypes.h>
|
|
#include <lzma/LzmaDec.h>
|
|
#include <lzma/LzmaTools.h>
|
|
#endif /* CONFIG_LZMA */
|
|
|
|
#ifdef CONFIG_LZO
|
|
#include <linux/lzo.h>
|
|
#endif /* CONFIG_LZO */
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#ifndef CONFIG_SYS_BOOTM_LEN
|
|
#define CONFIG_SYS_BOOTM_LEN 0x800000 /* use 8MByte as default max gunzip size */
|
|
#endif
|
|
|
|
#ifdef CONFIG_BZIP2
|
|
extern void bz_internal_error(int);
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_IMI)
|
|
static int image_info(unsigned long addr);
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_IMLS)
|
|
#include <flash.h>
|
|
#include <mtd/cfi_flash.h>
|
|
extern flash_info_t flash_info[]; /* info for FLASH chips */
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
|
|
static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
|
|
#endif
|
|
|
|
#include <linux/err.h>
|
|
#include <nand.h>
|
|
|
|
#if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
|
|
static void fixup_silent_linux(void);
|
|
#endif
|
|
|
|
static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
|
|
char * const argv[], bootm_headers_t *images,
|
|
ulong *os_data, ulong *os_len);
|
|
|
|
/*
|
|
* Continue booting an OS image; caller already has:
|
|
* - copied image header to global variable `header'
|
|
* - checked header magic number, checksums (both header & image),
|
|
* - verified image architecture (PPC) and type (KERNEL or MULTI),
|
|
* - loaded (first part of) image to header load address,
|
|
* - disabled interrupts.
|
|
*
|
|
* @flag: Flags indicating what to do (BOOTM_STATE_...)
|
|
* @argc: Number of arguments. Note that the arguments are shifted down
|
|
* so that 0 is the first argument not processed by U-Boot, and
|
|
* argc is adjusted accordingly. This avoids confusion as to how
|
|
* many arguments are available for the OS.
|
|
* @images: Pointers to os/initrd/fdt
|
|
* @return 1 on error. On success the OS boots so this function does
|
|
* not return.
|
|
*/
|
|
typedef int boot_os_fn(int flag, int argc, char * const argv[],
|
|
bootm_headers_t *images);
|
|
|
|
#ifdef CONFIG_BOOTM_LINUX
|
|
extern boot_os_fn do_bootm_linux;
|
|
#endif
|
|
#ifdef CONFIG_BOOTM_NETBSD
|
|
static boot_os_fn do_bootm_netbsd;
|
|
#endif
|
|
#if defined(CONFIG_LYNXKDI)
|
|
static boot_os_fn do_bootm_lynxkdi;
|
|
extern void lynxkdi_boot(image_header_t *);
|
|
#endif
|
|
#ifdef CONFIG_BOOTM_RTEMS
|
|
static boot_os_fn do_bootm_rtems;
|
|
#endif
|
|
#if defined(CONFIG_BOOTM_OSE)
|
|
static boot_os_fn do_bootm_ose;
|
|
#endif
|
|
#if defined(CONFIG_BOOTM_PLAN9)
|
|
static boot_os_fn do_bootm_plan9;
|
|
#endif
|
|
#if defined(CONFIG_CMD_ELF)
|
|
static boot_os_fn do_bootm_vxworks;
|
|
static boot_os_fn do_bootm_qnxelf;
|
|
int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
|
|
int do_bootelf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
|
|
#endif
|
|
#if defined(CONFIG_INTEGRITY)
|
|
static boot_os_fn do_bootm_integrity;
|
|
#endif
|
|
|
|
static boot_os_fn *boot_os[] = {
|
|
#ifdef CONFIG_BOOTM_LINUX
|
|
[IH_OS_LINUX] = do_bootm_linux,
|
|
#endif
|
|
#ifdef CONFIG_BOOTM_NETBSD
|
|
[IH_OS_NETBSD] = do_bootm_netbsd,
|
|
#endif
|
|
#ifdef CONFIG_LYNXKDI
|
|
[IH_OS_LYNXOS] = do_bootm_lynxkdi,
|
|
#endif
|
|
#ifdef CONFIG_BOOTM_RTEMS
|
|
[IH_OS_RTEMS] = do_bootm_rtems,
|
|
#endif
|
|
#if defined(CONFIG_BOOTM_OSE)
|
|
[IH_OS_OSE] = do_bootm_ose,
|
|
#endif
|
|
#if defined(CONFIG_BOOTM_PLAN9)
|
|
[IH_OS_PLAN9] = do_bootm_plan9,
|
|
#endif
|
|
#if defined(CONFIG_CMD_ELF)
|
|
[IH_OS_VXWORKS] = do_bootm_vxworks,
|
|
[IH_OS_QNX] = do_bootm_qnxelf,
|
|
#endif
|
|
#ifdef CONFIG_INTEGRITY
|
|
[IH_OS_INTEGRITY] = do_bootm_integrity,
|
|
#endif
|
|
};
|
|
|
|
bootm_headers_t images; /* pointers to os/initrd/fdt images */
|
|
|
|
/* Allow for arch specific config before we boot */
|
|
static void __arch_preboot_os(void)
|
|
{
|
|
/* please define platform specific arch_preboot_os() */
|
|
}
|
|
void arch_preboot_os(void) __attribute__((weak, alias("__arch_preboot_os")));
|
|
|
|
#define IH_INITRD_ARCH IH_ARCH_DEFAULT
|
|
|
|
#ifdef CONFIG_LMB
|
|
static void boot_start_lmb(bootm_headers_t *images)
|
|
{
|
|
ulong mem_start;
|
|
phys_size_t mem_size;
|
|
|
|
lmb_init(&images->lmb);
|
|
|
|
mem_start = getenv_bootm_low();
|
|
mem_size = getenv_bootm_size();
|
|
|
|
lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size);
|
|
|
|
arch_lmb_reserve(&images->lmb);
|
|
board_lmb_reserve(&images->lmb);
|
|
}
|
|
#else
|
|
#define lmb_reserve(lmb, base, size)
|
|
static inline void boot_start_lmb(bootm_headers_t *images) { }
|
|
#endif
|
|
|
|
static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
memset((void *)&images, 0, sizeof(images));
|
|
images.verify = getenv_yesno("verify");
|
|
|
|
boot_start_lmb(&images);
|
|
|
|
bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start");
|
|
images.state = BOOTM_STATE_START;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bootm_find_os(cmd_tbl_t *cmdtp, int flag, int argc,
|
|
char * const argv[])
|
|
{
|
|
const void *os_hdr;
|
|
|
|
/* get kernel image header, start address and length */
|
|
os_hdr = boot_get_kernel(cmdtp, flag, argc, argv,
|
|
&images, &images.os.image_start, &images.os.image_len);
|
|
if (images.os.image_len == 0) {
|
|
puts("ERROR: can't get kernel image!\n");
|
|
return 1;
|
|
}
|
|
|
|
/* get image parameters */
|
|
switch (genimg_get_format(os_hdr)) {
|
|
case IMAGE_FORMAT_LEGACY:
|
|
images.os.type = image_get_type(os_hdr);
|
|
images.os.comp = image_get_comp(os_hdr);
|
|
images.os.os = image_get_os(os_hdr);
|
|
|
|
images.os.end = image_get_image_end(os_hdr);
|
|
images.os.load = image_get_load(os_hdr);
|
|
break;
|
|
#if defined(CONFIG_FIT)
|
|
case IMAGE_FORMAT_FIT:
|
|
if (fit_image_get_type(images.fit_hdr_os,
|
|
images.fit_noffset_os, &images.os.type)) {
|
|
puts("Can't get image type!\n");
|
|
bootstage_error(BOOTSTAGE_ID_FIT_TYPE);
|
|
return 1;
|
|
}
|
|
|
|
if (fit_image_get_comp(images.fit_hdr_os,
|
|
images.fit_noffset_os, &images.os.comp)) {
|
|
puts("Can't get image compression!\n");
|
|
bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION);
|
|
return 1;
|
|
}
|
|
|
|
if (fit_image_get_os(images.fit_hdr_os,
|
|
images.fit_noffset_os, &images.os.os)) {
|
|
puts("Can't get image OS!\n");
|
|
bootstage_error(BOOTSTAGE_ID_FIT_OS);
|
|
return 1;
|
|
}
|
|
|
|
images.os.end = fit_get_end(images.fit_hdr_os);
|
|
|
|
if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
|
|
&images.os.load)) {
|
|
puts("Can't get image load address!\n");
|
|
bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR);
|
|
return 1;
|
|
}
|
|
break;
|
|
#endif
|
|
default:
|
|
puts("ERROR: unknown image format type!\n");
|
|
return 1;
|
|
}
|
|
|
|
/* find kernel entry point */
|
|
if (images.legacy_hdr_valid) {
|
|
images.ep = image_get_ep(&images.legacy_hdr_os_copy);
|
|
#if defined(CONFIG_FIT)
|
|
} else if (images.fit_uname_os) {
|
|
int ret;
|
|
|
|
ret = fit_image_get_entry(images.fit_hdr_os,
|
|
images.fit_noffset_os, &images.ep);
|
|
if (ret) {
|
|
puts("Can't get entry point property!\n");
|
|
return 1;
|
|
}
|
|
#endif
|
|
} else {
|
|
puts("Could not find kernel entry point!\n");
|
|
return 1;
|
|
}
|
|
|
|
if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
|
|
images.os.load = images.os.image_start;
|
|
images.ep += images.os.load;
|
|
}
|
|
|
|
images.os.start = (ulong)os_hdr;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bootm_find_ramdisk(int flag, int argc, char * const argv[])
|
|
{
|
|
int ret;
|
|
|
|
/* find ramdisk */
|
|
ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH,
|
|
&images.rd_start, &images.rd_end);
|
|
if (ret) {
|
|
puts("Ramdisk image is corrupt or invalid\n");
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if defined(CONFIG_OF_LIBFDT)
|
|
static int bootm_find_fdt(int flag, int argc, char * const argv[])
|
|
{
|
|
int ret;
|
|
|
|
/* find flattened device tree */
|
|
ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images,
|
|
&images.ft_addr, &images.ft_len);
|
|
if (ret) {
|
|
puts("Could not find a valid device tree\n");
|
|
return 1;
|
|
}
|
|
|
|
set_working_fdt_addr(images.ft_addr);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int bootm_find_other(cmd_tbl_t *cmdtp, int flag, int argc,
|
|
char * const argv[])
|
|
{
|
|
if (((images.os.type == IH_TYPE_KERNEL) ||
|
|
(images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
|
|
(images.os.type == IH_TYPE_MULTI)) &&
|
|
(images.os.os == IH_OS_LINUX)) {
|
|
if (bootm_find_ramdisk(flag, argc, argv))
|
|
return 1;
|
|
|
|
#if defined(CONFIG_OF_LIBFDT)
|
|
if (bootm_find_fdt(flag, argc, argv))
|
|
return 1;
|
|
#endif
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define BOOTM_ERR_RESET -1
|
|
#define BOOTM_ERR_OVERLAP -2
|
|
#define BOOTM_ERR_UNIMPLEMENTED -3
|
|
static int bootm_load_os(bootm_headers_t *images, unsigned long *load_end,
|
|
int boot_progress)
|
|
{
|
|
image_info_t os = images->os;
|
|
uint8_t comp = os.comp;
|
|
ulong load = os.load;
|
|
ulong blob_start = os.start;
|
|
ulong blob_end = os.end;
|
|
ulong image_start = os.image_start;
|
|
ulong image_len = os.image_len;
|
|
__maybe_unused uint unc_len = CONFIG_SYS_BOOTM_LEN;
|
|
int no_overlap = 0;
|
|
void *load_buf, *image_buf;
|
|
#if defined(CONFIG_LZMA) || defined(CONFIG_LZO)
|
|
int ret;
|
|
#endif /* defined(CONFIG_LZMA) || defined(CONFIG_LZO) */
|
|
|
|
const char *type_name = genimg_get_type_name(os.type);
|
|
|
|
load_buf = map_sysmem(load, unc_len);
|
|
image_buf = map_sysmem(image_start, image_len);
|
|
switch (comp) {
|
|
case IH_COMP_NONE:
|
|
if (load == blob_start || load == image_start) {
|
|
printf(" XIP %s ... ", type_name);
|
|
no_overlap = 1;
|
|
} else {
|
|
printf(" Loading %s ... ", type_name);
|
|
memmove_wd(load_buf, image_buf, image_len, CHUNKSZ);
|
|
}
|
|
*load_end = load + image_len;
|
|
break;
|
|
#ifdef CONFIG_GZIP
|
|
case IH_COMP_GZIP:
|
|
printf(" Uncompressing %s ... ", type_name);
|
|
if (gunzip(load_buf, unc_len, image_buf, &image_len) != 0) {
|
|
puts("GUNZIP: uncompress, out-of-mem or overwrite "
|
|
"error - must RESET board to recover\n");
|
|
if (boot_progress)
|
|
bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
|
|
return BOOTM_ERR_RESET;
|
|
}
|
|
|
|
*load_end = load + image_len;
|
|
break;
|
|
#endif /* CONFIG_GZIP */
|
|
#ifdef CONFIG_BZIP2
|
|
case IH_COMP_BZIP2:
|
|
printf(" Uncompressing %s ... ", type_name);
|
|
/*
|
|
* If we've got less than 4 MB of malloc() space,
|
|
* use slower decompression algorithm which requires
|
|
* at most 2300 KB of memory.
|
|
*/
|
|
int i = BZ2_bzBuffToBuffDecompress(load_buf, &unc_len,
|
|
image_buf, image_len,
|
|
CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
|
|
if (i != BZ_OK) {
|
|
printf("BUNZIP2: uncompress or overwrite error %d "
|
|
"- must RESET board to recover\n", i);
|
|
if (boot_progress)
|
|
bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
|
|
return BOOTM_ERR_RESET;
|
|
}
|
|
|
|
*load_end = load + unc_len;
|
|
break;
|
|
#endif /* CONFIG_BZIP2 */
|
|
#ifdef CONFIG_LZMA
|
|
case IH_COMP_LZMA: {
|
|
SizeT lzma_len = unc_len;
|
|
printf(" Uncompressing %s ... ", type_name);
|
|
|
|
ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len,
|
|
image_buf, image_len);
|
|
unc_len = lzma_len;
|
|
if (ret != SZ_OK) {
|
|
printf("LZMA: uncompress or overwrite error %d "
|
|
"- must RESET board to recover\n", ret);
|
|
bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
|
|
return BOOTM_ERR_RESET;
|
|
}
|
|
*load_end = load + unc_len;
|
|
break;
|
|
}
|
|
#endif /* CONFIG_LZMA */
|
|
#ifdef CONFIG_LZO
|
|
case IH_COMP_LZO: {
|
|
size_t size;
|
|
|
|
printf(" Uncompressing %s ... ", type_name);
|
|
|
|
ret = lzop_decompress(image_buf, image_len, load_buf, &size);
|
|
if (ret != LZO_E_OK) {
|
|
printf("LZO: uncompress or overwrite error %d "
|
|
"- must RESET board to recover\n", ret);
|
|
if (boot_progress)
|
|
bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
|
|
return BOOTM_ERR_RESET;
|
|
}
|
|
|
|
*load_end = load + size;
|
|
break;
|
|
}
|
|
#endif /* CONFIG_LZO */
|
|
default:
|
|
printf("Unimplemented compression type %d\n", comp);
|
|
return BOOTM_ERR_UNIMPLEMENTED;
|
|
}
|
|
|
|
flush_cache(load, (*load_end - load) * sizeof(ulong));
|
|
|
|
puts("OK\n");
|
|
debug(" kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end);
|
|
bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
|
|
|
|
if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) {
|
|
debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
|
|
blob_start, blob_end);
|
|
debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
|
|
*load_end);
|
|
|
|
/* Check what type of image this is. */
|
|
if (images->legacy_hdr_valid) {
|
|
if (image_get_type(&images->legacy_hdr_os_copy)
|
|
== IH_TYPE_MULTI)
|
|
puts("WARNING: legacy format multi component image overwritten\n");
|
|
return BOOTM_ERR_OVERLAP;
|
|
} else {
|
|
puts("ERROR: new format image overwritten - must RESET the board to recover\n");
|
|
bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
|
|
return BOOTM_ERR_RESET;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bootm_start_standalone(int argc, char * const argv[])
|
|
{
|
|
char *s;
|
|
int (*appl)(int, char * const []);
|
|
|
|
/* Don't start if "autostart" is set to "no" */
|
|
if (((s = getenv("autostart")) != NULL) && (strcmp(s, "no") == 0)) {
|
|
setenv_hex("filesize", images.os.image_len);
|
|
return 0;
|
|
}
|
|
appl = (int (*)(int, char * const []))(ulong)ntohl(images.ep);
|
|
(*appl)(argc, argv);
|
|
return 0;
|
|
}
|
|
|
|
/* we overload the cmd field with our state machine info instead of a
|
|
* function pointer */
|
|
static cmd_tbl_t cmd_bootm_sub[] = {
|
|
U_BOOT_CMD_MKENT(start, 0, 1, (void *)BOOTM_STATE_START, "", ""),
|
|
U_BOOT_CMD_MKENT(loados, 0, 1, (void *)BOOTM_STATE_LOADOS, "", ""),
|
|
#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
|
|
U_BOOT_CMD_MKENT(ramdisk, 0, 1, (void *)BOOTM_STATE_RAMDISK, "", ""),
|
|
#endif
|
|
#ifdef CONFIG_OF_LIBFDT
|
|
U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)BOOTM_STATE_FDT, "", ""),
|
|
#endif
|
|
U_BOOT_CMD_MKENT(cmdline, 0, 1, (void *)BOOTM_STATE_OS_CMDLINE, "", ""),
|
|
U_BOOT_CMD_MKENT(bdt, 0, 1, (void *)BOOTM_STATE_OS_BD_T, "", ""),
|
|
U_BOOT_CMD_MKENT(prep, 0, 1, (void *)BOOTM_STATE_OS_PREP, "", ""),
|
|
U_BOOT_CMD_MKENT(fake, 0, 1, (void *)BOOTM_STATE_OS_FAKE_GO, "", ""),
|
|
U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""),
|
|
};
|
|
|
|
static int boot_selected_os(int argc, char * const argv[], int state,
|
|
bootm_headers_t *images, boot_os_fn *boot_fn)
|
|
{
|
|
if (images->os.type == IH_TYPE_STANDALONE) {
|
|
/* This may return when 'autostart' is 'no' */
|
|
bootm_start_standalone(argc, argv);
|
|
return 0;
|
|
}
|
|
arch_preboot_os();
|
|
boot_fn(state, argc, argv, images);
|
|
if (state == BOOTM_STATE_OS_FAKE_GO) /* We expect to return */
|
|
return 0;
|
|
bootstage_error(BOOTSTAGE_ID_BOOT_OS_RETURNED);
|
|
#ifdef DEBUG
|
|
puts("\n## Control returned to monitor - resetting...\n");
|
|
#endif
|
|
return BOOTM_ERR_RESET;
|
|
}
|
|
|
|
/**
|
|
* bootm_disable_interrupts() - Disable interrupts in preparation for load/boot
|
|
*
|
|
* @return interrupt flag (0 if interrupts were disabled, non-zero if they were
|
|
* enabled)
|
|
*/
|
|
static ulong bootm_disable_interrupts(void)
|
|
{
|
|
ulong iflag;
|
|
|
|
/*
|
|
* We have reached the point of no return: we are going to
|
|
* overwrite all exception vector code, so we cannot easily
|
|
* recover from any failures any more...
|
|
*/
|
|
iflag = disable_interrupts();
|
|
#ifdef CONFIG_NETCONSOLE
|
|
/* Stop the ethernet stack if NetConsole could have left it up */
|
|
eth_halt();
|
|
eth_unregister(eth_get_dev());
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_USB)
|
|
/*
|
|
* turn off USB to prevent the host controller from writing to the
|
|
* SDRAM while Linux is booting. This could happen (at least for OHCI
|
|
* controller), because the HCCA (Host Controller Communication Area)
|
|
* lies within the SDRAM and the host controller writes continously to
|
|
* this area (as busmaster!). The HccaFrameNumber is for example
|
|
* updated every 1 ms within the HCCA structure in SDRAM! For more
|
|
* details see the OpenHCI specification.
|
|
*/
|
|
usb_stop();
|
|
#endif
|
|
return iflag;
|
|
}
|
|
|
|
/**
|
|
* Execute selected states of the bootm command.
|
|
*
|
|
* Note the arguments to this state must be the first argument, Any 'bootm'
|
|
* or sub-command arguments must have already been taken.
|
|
*
|
|
* Note that if states contains more than one flag it MUST contain
|
|
* BOOTM_STATE_START, since this handles and consumes the command line args.
|
|
*
|
|
* Also note that aside from boot_os_fn functions and bootm_load_os no other
|
|
* functions we store the return value of in 'ret' may use a negative return
|
|
* value, without special handling.
|
|
*
|
|
* @param cmdtp Pointer to bootm command table entry
|
|
* @param flag Command flags (CMD_FLAG_...)
|
|
* @param argc Number of subcommand arguments (0 = no arguments)
|
|
* @param argv Arguments
|
|
* @param states Mask containing states to run (BOOTM_STATE_...)
|
|
* @param images Image header information
|
|
* @param boot_progress 1 to show boot progress, 0 to not do this
|
|
* @return 0 if ok, something else on error. Some errors will cause this
|
|
* function to perform a reboot! If states contains BOOTM_STATE_OS_GO
|
|
* then the intent is to boot an OS, so this function will not return
|
|
* unless the image type is standalone.
|
|
*/
|
|
static int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc,
|
|
char * const argv[], int states, bootm_headers_t *images,
|
|
int boot_progress)
|
|
{
|
|
boot_os_fn *boot_fn;
|
|
ulong iflag = 0;
|
|
int ret = 0, need_boot_fn;
|
|
|
|
images->state |= states;
|
|
|
|
/*
|
|
* Work through the states and see how far we get. We stop on
|
|
* any error.
|
|
*/
|
|
if (states & BOOTM_STATE_START)
|
|
ret = bootm_start(cmdtp, flag, argc, argv);
|
|
|
|
if (!ret && (states & BOOTM_STATE_FINDOS))
|
|
ret = bootm_find_os(cmdtp, flag, argc, argv);
|
|
|
|
if (!ret && (states & BOOTM_STATE_FINDOTHER)) {
|
|
ret = bootm_find_other(cmdtp, flag, argc, argv);
|
|
argc = 0; /* consume the args */
|
|
}
|
|
|
|
/* Load the OS */
|
|
if (!ret && (states & BOOTM_STATE_LOADOS)) {
|
|
ulong load_end;
|
|
|
|
iflag = bootm_disable_interrupts();
|
|
ret = bootm_load_os(images, &load_end, 0);
|
|
if (ret == 0)
|
|
lmb_reserve(&images->lmb, images->os.load,
|
|
(load_end - images->os.load));
|
|
else if (ret && ret != BOOTM_ERR_OVERLAP)
|
|
goto err;
|
|
else if (ret == BOOTM_ERR_OVERLAP)
|
|
ret = 0;
|
|
#if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
|
|
if (images->os.os == IH_OS_LINUX)
|
|
fixup_silent_linux();
|
|
#endif
|
|
}
|
|
|
|
/* Relocate the ramdisk */
|
|
#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
|
|
if (!ret && (states & BOOTM_STATE_RAMDISK)) {
|
|
ulong rd_len = images->rd_end - images->rd_start;
|
|
|
|
ret = boot_ramdisk_high(&images->lmb, images->rd_start,
|
|
rd_len, &images->initrd_start, &images->initrd_end);
|
|
if (!ret) {
|
|
setenv_hex("initrd_start", images->initrd_start);
|
|
setenv_hex("initrd_end", images->initrd_end);
|
|
}
|
|
}
|
|
#endif
|
|
#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB)
|
|
if (!ret && (states & BOOTM_STATE_FDT)) {
|
|
boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr);
|
|
ret = boot_relocate_fdt(&images->lmb, &images->ft_addr,
|
|
&images->ft_len);
|
|
}
|
|
#endif
|
|
|
|
/* From now on, we need the OS boot function */
|
|
if (ret)
|
|
return ret;
|
|
boot_fn = boot_os[images->os.os];
|
|
need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE |
|
|
BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP |
|
|
BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO);
|
|
if (boot_fn == NULL && need_boot_fn) {
|
|
if (iflag)
|
|
enable_interrupts();
|
|
printf("ERROR: booting os '%s' (%d) is not supported\n",
|
|
genimg_get_os_name(images->os.os), images->os.os);
|
|
bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS);
|
|
return 1;
|
|
}
|
|
|
|
/* Call various other states that are not generally used */
|
|
if (!ret && (states & BOOTM_STATE_OS_CMDLINE))
|
|
ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images);
|
|
if (!ret && (states & BOOTM_STATE_OS_BD_T))
|
|
ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images);
|
|
if (!ret && (states & BOOTM_STATE_OS_PREP))
|
|
ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images);
|
|
|
|
#ifdef CONFIG_TRACE
|
|
/* Pretend to run the OS, then run a user command */
|
|
if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) {
|
|
char *cmd_list = getenv("fakegocmd");
|
|
|
|
ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO,
|
|
images, boot_fn);
|
|
if (!ret && cmd_list)
|
|
ret = run_command_list(cmd_list, -1, flag);
|
|
}
|
|
#endif
|
|
|
|
/* Check for unsupported subcommand. */
|
|
if (ret) {
|
|
puts("subcommand not supported\n");
|
|
return ret;
|
|
}
|
|
|
|
/* Now run the OS! We hope this doesn't return */
|
|
if (!ret && (states & BOOTM_STATE_OS_GO))
|
|
ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO,
|
|
images, boot_fn);
|
|
|
|
/* Deal with any fallout */
|
|
err:
|
|
if (iflag)
|
|
enable_interrupts();
|
|
|
|
if (ret == BOOTM_ERR_UNIMPLEMENTED)
|
|
bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL);
|
|
else if (ret == BOOTM_ERR_RESET)
|
|
do_reset(cmdtp, flag, argc, argv);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc,
|
|
char * const argv[])
|
|
{
|
|
int ret = 0;
|
|
long state;
|
|
cmd_tbl_t *c;
|
|
|
|
c = find_cmd_tbl(argv[0], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub));
|
|
argc--; argv++;
|
|
|
|
if (c) {
|
|
state = (long)c->cmd;
|
|
if (state == BOOTM_STATE_START)
|
|
state |= BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER;
|
|
} else {
|
|
/* Unrecognized command */
|
|
return CMD_RET_USAGE;
|
|
}
|
|
|
|
if (state != BOOTM_STATE_START && images.state >= state) {
|
|
printf("Trying to execute a command out of order\n");
|
|
return CMD_RET_USAGE;
|
|
}
|
|
|
|
ret = do_bootm_states(cmdtp, flag, argc, argv, state, &images, 0);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*******************************************************************/
|
|
/* bootm - boot application image from image in memory */
|
|
/*******************************************************************/
|
|
|
|
int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
#ifdef CONFIG_NEEDS_MANUAL_RELOC
|
|
static int relocated = 0;
|
|
|
|
if (!relocated) {
|
|
int i;
|
|
|
|
/* relocate boot function table */
|
|
for (i = 0; i < ARRAY_SIZE(boot_os); i++)
|
|
if (boot_os[i] != NULL)
|
|
boot_os[i] += gd->reloc_off;
|
|
|
|
/* relocate names of sub-command table */
|
|
for (i = 0; i < ARRAY_SIZE(cmd_bootm_sub); i++)
|
|
cmd_bootm_sub[i].name += gd->reloc_off;
|
|
|
|
relocated = 1;
|
|
}
|
|
#endif
|
|
|
|
/* determine if we have a sub command */
|
|
argc--; argv++;
|
|
if (argc > 0) {
|
|
char *endp;
|
|
|
|
simple_strtoul(argv[0], &endp, 16);
|
|
/* endp pointing to NULL means that argv[0] was just a
|
|
* valid number, pass it along to the normal bootm processing
|
|
*
|
|
* If endp is ':' or '#' assume a FIT identifier so pass
|
|
* along for normal processing.
|
|
*
|
|
* Right now we assume the first arg should never be '-'
|
|
*/
|
|
if ((*endp != 0) && (*endp != ':') && (*endp != '#'))
|
|
return do_bootm_subcommand(cmdtp, flag, argc, argv);
|
|
}
|
|
|
|
return do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START |
|
|
BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER |
|
|
BOOTM_STATE_LOADOS |
|
|
#if defined(CONFIG_PPC) || defined(CONFIG_MIPS)
|
|
BOOTM_STATE_OS_CMDLINE |
|
|
#endif
|
|
BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
|
|
BOOTM_STATE_OS_GO, &images, 1);
|
|
}
|
|
|
|
int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
|
|
{
|
|
const char *ep = getenv("autostart");
|
|
|
|
if (ep && !strcmp(ep, "yes")) {
|
|
char *local_args[2];
|
|
local_args[0] = (char *)cmd;
|
|
local_args[1] = NULL;
|
|
printf("Automatic boot of image at addr 0x%08lX ...\n", load_addr);
|
|
return do_bootm(cmdtp, 0, 1, local_args);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* image_get_kernel - verify legacy format kernel image
|
|
* @img_addr: in RAM address of the legacy format image to be verified
|
|
* @verify: data CRC verification flag
|
|
*
|
|
* image_get_kernel() verifies legacy image integrity and returns pointer to
|
|
* legacy image header if image verification was completed successfully.
|
|
*
|
|
* returns:
|
|
* pointer to a legacy image header if valid image was found
|
|
* otherwise return NULL
|
|
*/
|
|
static image_header_t *image_get_kernel(ulong img_addr, int verify)
|
|
{
|
|
image_header_t *hdr = (image_header_t *)img_addr;
|
|
|
|
if (!image_check_magic(hdr)) {
|
|
puts("Bad Magic Number\n");
|
|
bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC);
|
|
return NULL;
|
|
}
|
|
bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER);
|
|
|
|
if (!image_check_hcrc(hdr)) {
|
|
puts("Bad Header Checksum\n");
|
|
bootstage_error(BOOTSTAGE_ID_CHECK_HEADER);
|
|
return NULL;
|
|
}
|
|
|
|
bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM);
|
|
image_print_contents(hdr);
|
|
|
|
if (verify) {
|
|
puts(" Verifying Checksum ... ");
|
|
if (!image_check_dcrc(hdr)) {
|
|
printf("Bad Data CRC\n");
|
|
bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM);
|
|
return NULL;
|
|
}
|
|
puts("OK\n");
|
|
}
|
|
bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH);
|
|
|
|
if (!image_check_target_arch(hdr)) {
|
|
printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr));
|
|
bootstage_error(BOOTSTAGE_ID_CHECK_ARCH);
|
|
return NULL;
|
|
}
|
|
return hdr;
|
|
}
|
|
|
|
/**
|
|
* boot_get_kernel - find kernel image
|
|
* @os_data: pointer to a ulong variable, will hold os data start address
|
|
* @os_len: pointer to a ulong variable, will hold os data length
|
|
*
|
|
* boot_get_kernel() tries to find a kernel image, verifies its integrity
|
|
* and locates kernel data.
|
|
*
|
|
* returns:
|
|
* pointer to image header if valid image was found, plus kernel start
|
|
* address and length, otherwise NULL
|
|
*/
|
|
static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
|
|
char * const argv[], bootm_headers_t *images, ulong *os_data,
|
|
ulong *os_len)
|
|
{
|
|
image_header_t *hdr;
|
|
ulong img_addr;
|
|
const void *buf;
|
|
#if defined(CONFIG_FIT)
|
|
const char *fit_uname_config = NULL;
|
|
const char *fit_uname_kernel = NULL;
|
|
int os_noffset;
|
|
#endif
|
|
|
|
/* find out kernel image address */
|
|
if (argc < 1) {
|
|
img_addr = load_addr;
|
|
debug("* kernel: default image load address = 0x%08lx\n",
|
|
load_addr);
|
|
#if defined(CONFIG_FIT)
|
|
} else if (fit_parse_conf(argv[0], load_addr, &img_addr,
|
|
&fit_uname_config)) {
|
|
debug("* kernel: config '%s' from image at 0x%08lx\n",
|
|
fit_uname_config, img_addr);
|
|
} else if (fit_parse_subimage(argv[0], load_addr, &img_addr,
|
|
&fit_uname_kernel)) {
|
|
debug("* kernel: subimage '%s' from image at 0x%08lx\n",
|
|
fit_uname_kernel, img_addr);
|
|
#endif
|
|
} else {
|
|
img_addr = simple_strtoul(argv[0], NULL, 16);
|
|
debug("* kernel: cmdline image address = 0x%08lx\n", img_addr);
|
|
}
|
|
|
|
bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC);
|
|
|
|
/* copy from dataflash if needed */
|
|
img_addr = genimg_get_image(img_addr);
|
|
|
|
/* check image type, for FIT images get FIT kernel node */
|
|
*os_data = *os_len = 0;
|
|
buf = map_sysmem(img_addr, 0);
|
|
switch (genimg_get_format(buf)) {
|
|
case IMAGE_FORMAT_LEGACY:
|
|
printf("## Booting kernel from Legacy Image at %08lx ...\n",
|
|
img_addr);
|
|
hdr = image_get_kernel(img_addr, images->verify);
|
|
if (!hdr)
|
|
return NULL;
|
|
bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE);
|
|
|
|
/* get os_data and os_len */
|
|
switch (image_get_type(hdr)) {
|
|
case IH_TYPE_KERNEL:
|
|
case IH_TYPE_KERNEL_NOLOAD:
|
|
*os_data = image_get_data(hdr);
|
|
*os_len = image_get_data_size(hdr);
|
|
break;
|
|
case IH_TYPE_MULTI:
|
|
image_multi_getimg(hdr, 0, os_data, os_len);
|
|
break;
|
|
case IH_TYPE_STANDALONE:
|
|
*os_data = image_get_data(hdr);
|
|
*os_len = image_get_data_size(hdr);
|
|
break;
|
|
default:
|
|
printf("Wrong Image Type for %s command\n",
|
|
cmdtp->name);
|
|
bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE);
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* copy image header to allow for image overwrites during
|
|
* kernel decompression.
|
|
*/
|
|
memmove(&images->legacy_hdr_os_copy, hdr,
|
|
sizeof(image_header_t));
|
|
|
|
/* save pointer to image header */
|
|
images->legacy_hdr_os = hdr;
|
|
|
|
images->legacy_hdr_valid = 1;
|
|
bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE);
|
|
break;
|
|
#if defined(CONFIG_FIT)
|
|
case IMAGE_FORMAT_FIT:
|
|
os_noffset = fit_image_load(images, FIT_KERNEL_PROP,
|
|
img_addr,
|
|
&fit_uname_kernel, &fit_uname_config,
|
|
IH_ARCH_DEFAULT, IH_TYPE_KERNEL,
|
|
BOOTSTAGE_ID_FIT_KERNEL_START,
|
|
FIT_LOAD_IGNORED, os_data, os_len);
|
|
if (os_noffset < 0)
|
|
return NULL;
|
|
|
|
images->fit_hdr_os = map_sysmem(img_addr, 0);
|
|
images->fit_uname_os = fit_uname_kernel;
|
|
images->fit_uname_cfg = fit_uname_config;
|
|
images->fit_noffset_os = os_noffset;
|
|
break;
|
|
#endif
|
|
default:
|
|
printf("Wrong Image Format for %s command\n", cmdtp->name);
|
|
bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO);
|
|
return NULL;
|
|
}
|
|
|
|
debug(" kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
|
|
*os_data, *os_len, *os_len);
|
|
|
|
return buf;
|
|
}
|
|
|
|
#ifdef CONFIG_SYS_LONGHELP
|
|
static char bootm_help_text[] =
|
|
"[addr [arg ...]]\n - boot application image stored in memory\n"
|
|
"\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
|
|
"\t'arg' can be the address of an initrd image\n"
|
|
#if defined(CONFIG_OF_LIBFDT)
|
|
"\tWhen booting a Linux kernel which requires a flat device-tree\n"
|
|
"\ta third argument is required which is the address of the\n"
|
|
"\tdevice-tree blob. To boot that kernel without an initrd image,\n"
|
|
"\tuse a '-' for the second argument. If you do not pass a third\n"
|
|
"\ta bd_info struct will be passed instead\n"
|
|
#endif
|
|
#if defined(CONFIG_FIT)
|
|
"\t\nFor the new multi component uImage format (FIT) addresses\n"
|
|
"\tmust be extened to include component or configuration unit name:\n"
|
|
"\taddr:<subimg_uname> - direct component image specification\n"
|
|
"\taddr#<conf_uname> - configuration specification\n"
|
|
"\tUse iminfo command to get the list of existing component\n"
|
|
"\timages and configurations.\n"
|
|
#endif
|
|
"\nSub-commands to do part of the bootm sequence. The sub-commands "
|
|
"must be\n"
|
|
"issued in the order below (it's ok to not issue all sub-commands):\n"
|
|
"\tstart [addr [arg ...]]\n"
|
|
"\tloados - load OS image\n"
|
|
#if defined(CONFIG_SYS_BOOT_RAMDISK_HIGH)
|
|
"\tramdisk - relocate initrd, set env initrd_start/initrd_end\n"
|
|
#endif
|
|
#if defined(CONFIG_OF_LIBFDT)
|
|
"\tfdt - relocate flat device tree\n"
|
|
#endif
|
|
"\tcmdline - OS specific command line processing/setup\n"
|
|
"\tbdt - OS specific bd_t processing\n"
|
|
"\tprep - OS specific prep before relocation or go\n"
|
|
"\tgo - start OS";
|
|
#endif
|
|
|
|
U_BOOT_CMD(
|
|
bootm, CONFIG_SYS_MAXARGS, 1, do_bootm,
|
|
"boot application image from memory", bootm_help_text
|
|
);
|
|
|
|
/*******************************************************************/
|
|
/* bootd - boot default image */
|
|
/*******************************************************************/
|
|
#if defined(CONFIG_CMD_BOOTD)
|
|
int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
int rcode = 0;
|
|
|
|
if (run_command(getenv("bootcmd"), flag) < 0)
|
|
rcode = 1;
|
|
return rcode;
|
|
}
|
|
|
|
U_BOOT_CMD(
|
|
boot, 1, 1, do_bootd,
|
|
"boot default, i.e., run 'bootcmd'",
|
|
""
|
|
);
|
|
|
|
/* keep old command name "bootd" for backward compatibility */
|
|
U_BOOT_CMD(
|
|
bootd, 1, 1, do_bootd,
|
|
"boot default, i.e., run 'bootcmd'",
|
|
""
|
|
);
|
|
|
|
#endif
|
|
|
|
|
|
/*******************************************************************/
|
|
/* iminfo - print header info for a requested image */
|
|
/*******************************************************************/
|
|
#if defined(CONFIG_CMD_IMI)
|
|
static int do_iminfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
int arg;
|
|
ulong addr;
|
|
int rcode = 0;
|
|
|
|
if (argc < 2) {
|
|
return image_info(load_addr);
|
|
}
|
|
|
|
for (arg = 1; arg < argc; ++arg) {
|
|
addr = simple_strtoul(argv[arg], NULL, 16);
|
|
if (image_info(addr) != 0)
|
|
rcode = 1;
|
|
}
|
|
return rcode;
|
|
}
|
|
|
|
static int image_info(ulong addr)
|
|
{
|
|
void *hdr = (void *)addr;
|
|
|
|
printf("\n## Checking Image at %08lx ...\n", addr);
|
|
|
|
switch (genimg_get_format(hdr)) {
|
|
case IMAGE_FORMAT_LEGACY:
|
|
puts(" Legacy image found\n");
|
|
if (!image_check_magic(hdr)) {
|
|
puts(" Bad Magic Number\n");
|
|
return 1;
|
|
}
|
|
|
|
if (!image_check_hcrc(hdr)) {
|
|
puts(" Bad Header Checksum\n");
|
|
return 1;
|
|
}
|
|
|
|
image_print_contents(hdr);
|
|
|
|
puts(" Verifying Checksum ... ");
|
|
if (!image_check_dcrc(hdr)) {
|
|
puts(" Bad Data CRC\n");
|
|
return 1;
|
|
}
|
|
puts("OK\n");
|
|
return 0;
|
|
#if defined(CONFIG_FIT)
|
|
case IMAGE_FORMAT_FIT:
|
|
puts(" FIT image found\n");
|
|
|
|
if (!fit_check_format(hdr)) {
|
|
puts("Bad FIT image format!\n");
|
|
return 1;
|
|
}
|
|
|
|
fit_print_contents(hdr);
|
|
|
|
if (!fit_all_image_verify(hdr)) {
|
|
puts("Bad hash in FIT image!\n");
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
#endif
|
|
default:
|
|
puts("Unknown image format!\n");
|
|
break;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
U_BOOT_CMD(
|
|
iminfo, CONFIG_SYS_MAXARGS, 1, do_iminfo,
|
|
"print header information for application image",
|
|
"addr [addr ...]\n"
|
|
" - print header information for application image starting at\n"
|
|
" address 'addr' in memory; this includes verification of the\n"
|
|
" image contents (magic number, header and payload checksums)"
|
|
);
|
|
#endif
|
|
|
|
|
|
/*******************************************************************/
|
|
/* imls - list all images found in flash */
|
|
/*******************************************************************/
|
|
#if defined(CONFIG_CMD_IMLS)
|
|
static int do_imls_nor(void)
|
|
{
|
|
flash_info_t *info;
|
|
int i, j;
|
|
void *hdr;
|
|
|
|
for (i = 0, info = &flash_info[0];
|
|
i < CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) {
|
|
|
|
if (info->flash_id == FLASH_UNKNOWN)
|
|
goto next_bank;
|
|
for (j = 0; j < info->sector_count; ++j) {
|
|
|
|
hdr = (void *)info->start[j];
|
|
if (!hdr)
|
|
goto next_sector;
|
|
|
|
switch (genimg_get_format(hdr)) {
|
|
case IMAGE_FORMAT_LEGACY:
|
|
if (!image_check_hcrc(hdr))
|
|
goto next_sector;
|
|
|
|
printf("Legacy Image at %08lX:\n", (ulong)hdr);
|
|
image_print_contents(hdr);
|
|
|
|
puts(" Verifying Checksum ... ");
|
|
if (!image_check_dcrc(hdr)) {
|
|
puts("Bad Data CRC\n");
|
|
} else {
|
|
puts("OK\n");
|
|
}
|
|
break;
|
|
#if defined(CONFIG_FIT)
|
|
case IMAGE_FORMAT_FIT:
|
|
if (!fit_check_format(hdr))
|
|
goto next_sector;
|
|
|
|
printf("FIT Image at %08lX:\n", (ulong)hdr);
|
|
fit_print_contents(hdr);
|
|
break;
|
|
#endif
|
|
default:
|
|
goto next_sector;
|
|
}
|
|
|
|
next_sector: ;
|
|
}
|
|
next_bank: ;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_IMLS_NAND)
|
|
static int nand_imls_legacyimage(nand_info_t *nand, int nand_dev, loff_t off,
|
|
size_t len)
|
|
{
|
|
void *imgdata;
|
|
int ret;
|
|
|
|
imgdata = malloc(len);
|
|
if (!imgdata) {
|
|
printf("May be a Legacy Image at NAND device %d offset %08llX:\n",
|
|
nand_dev, off);
|
|
printf(" Low memory(cannot allocate memory for image)\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ret = nand_read_skip_bad(nand, off, &len,
|
|
imgdata);
|
|
if (ret < 0 && ret != -EUCLEAN) {
|
|
free(imgdata);
|
|
return ret;
|
|
}
|
|
|
|
if (!image_check_hcrc(imgdata)) {
|
|
free(imgdata);
|
|
return 0;
|
|
}
|
|
|
|
printf("Legacy Image at NAND device %d offset %08llX:\n",
|
|
nand_dev, off);
|
|
image_print_contents(imgdata);
|
|
|
|
puts(" Verifying Checksum ... ");
|
|
if (!image_check_dcrc(imgdata))
|
|
puts("Bad Data CRC\n");
|
|
else
|
|
puts("OK\n");
|
|
|
|
free(imgdata);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nand_imls_fitimage(nand_info_t *nand, int nand_dev, loff_t off,
|
|
size_t len)
|
|
{
|
|
void *imgdata;
|
|
int ret;
|
|
|
|
imgdata = malloc(len);
|
|
if (!imgdata) {
|
|
printf("May be a FIT Image at NAND device %d offset %08llX:\n",
|
|
nand_dev, off);
|
|
printf(" Low memory(cannot allocate memory for image)\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ret = nand_read_skip_bad(nand, off, &len,
|
|
imgdata);
|
|
if (ret < 0 && ret != -EUCLEAN) {
|
|
free(imgdata);
|
|
return ret;
|
|
}
|
|
|
|
if (!fit_check_format(imgdata)) {
|
|
free(imgdata);
|
|
return 0;
|
|
}
|
|
|
|
printf("FIT Image at NAND device %d offset %08llX:\n", nand_dev, off);
|
|
|
|
fit_print_contents(imgdata);
|
|
free(imgdata);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int do_imls_nand(void)
|
|
{
|
|
nand_info_t *nand;
|
|
int nand_dev = nand_curr_device;
|
|
size_t len;
|
|
loff_t off;
|
|
u32 buffer[16];
|
|
|
|
if (nand_dev < 0 || nand_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
|
|
puts("\nNo NAND devices available\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
printf("\n");
|
|
|
|
for (nand_dev = 0; nand_dev < CONFIG_SYS_MAX_NAND_DEVICE; nand_dev++) {
|
|
nand = &nand_info[nand_dev];
|
|
if (!nand->name || !nand->size)
|
|
continue;
|
|
|
|
for (off = 0; off < nand->size; off += nand->erasesize) {
|
|
const image_header_t *header;
|
|
int ret;
|
|
|
|
if (nand_block_isbad(nand, off))
|
|
continue;
|
|
|
|
len = sizeof(buffer);
|
|
|
|
ret = nand_read(nand, off, &len, (u8 *)buffer);
|
|
if (ret < 0 && ret != -EUCLEAN) {
|
|
printf("NAND read error %d at offset %08llX\n",
|
|
ret, off);
|
|
continue;
|
|
}
|
|
|
|
switch (genimg_get_format(buffer)) {
|
|
case IMAGE_FORMAT_LEGACY:
|
|
header = (const image_header_t *)buffer;
|
|
|
|
len = image_get_image_size(header);
|
|
nand_imls_legacyimage(nand, nand_dev, off, len);
|
|
break;
|
|
#if defined(CONFIG_FIT)
|
|
case IMAGE_FORMAT_FIT:
|
|
len = fit_get_size(buffer);
|
|
nand_imls_fitimage(nand, nand_dev, off, len);
|
|
break;
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
|
|
static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
int ret_nor = 0, ret_nand = 0;
|
|
|
|
#if defined(CONFIG_CMD_IMLS)
|
|
ret_nor = do_imls_nor();
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_IMLS_NAND)
|
|
ret_nand = do_imls_nand();
|
|
#endif
|
|
|
|
if (ret_nor)
|
|
return ret_nor;
|
|
|
|
if (ret_nand)
|
|
return ret_nand;
|
|
|
|
return (0);
|
|
}
|
|
|
|
U_BOOT_CMD(
|
|
imls, 1, 1, do_imls,
|
|
"list all images found in flash",
|
|
"\n"
|
|
" - Prints information about all images found at sector/block\n"
|
|
" boundaries in nor/nand flash."
|
|
);
|
|
#endif
|
|
|
|
/*******************************************************************/
|
|
/* helper routines */
|
|
/*******************************************************************/
|
|
#if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
|
|
|
|
#define CONSOLE_ARG "console="
|
|
#define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1)
|
|
|
|
static void fixup_silent_linux(void)
|
|
{
|
|
char *buf;
|
|
const char *env_val;
|
|
char *cmdline = getenv("bootargs");
|
|
int want_silent;
|
|
|
|
/*
|
|
* Only fix cmdline when requested. The environment variable can be:
|
|
*
|
|
* no - we never fixup
|
|
* yes - we always fixup
|
|
* unset - we rely on the console silent flag
|
|
*/
|
|
want_silent = getenv_yesno("silent_linux");
|
|
if (want_silent == 0)
|
|
return;
|
|
else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT))
|
|
return;
|
|
|
|
debug("before silent fix-up: %s\n", cmdline);
|
|
if (cmdline && (cmdline[0] != '\0')) {
|
|
char *start = strstr(cmdline, CONSOLE_ARG);
|
|
|
|
/* Allocate space for maximum possible new command line */
|
|
buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1);
|
|
if (!buf) {
|
|
debug("%s: out of memory\n", __func__);
|
|
return;
|
|
}
|
|
|
|
if (start) {
|
|
char *end = strchr(start, ' ');
|
|
int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN;
|
|
|
|
strncpy(buf, cmdline, num_start_bytes);
|
|
if (end)
|
|
strcpy(buf + num_start_bytes, end);
|
|
else
|
|
buf[num_start_bytes] = '\0';
|
|
} else {
|
|
sprintf(buf, "%s %s", cmdline, CONSOLE_ARG);
|
|
}
|
|
env_val = buf;
|
|
} else {
|
|
buf = NULL;
|
|
env_val = CONSOLE_ARG;
|
|
}
|
|
|
|
setenv("bootargs", env_val);
|
|
debug("after silent fix-up: %s\n", env_val);
|
|
free(buf);
|
|
}
|
|
#endif /* CONFIG_SILENT_CONSOLE */
|
|
|
|
#if defined(CONFIG_BOOTM_NETBSD) || defined(CONFIG_BOOTM_PLAN9)
|
|
static void copy_args(char *dest, int argc, char * const argv[], char delim)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < argc; i++) {
|
|
if (i > 0)
|
|
*dest++ = delim;
|
|
strcpy(dest, argv[i]);
|
|
dest += strlen(argv[i]);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/*******************************************************************/
|
|
/* OS booting routines */
|
|
/*******************************************************************/
|
|
|
|
#ifdef CONFIG_BOOTM_NETBSD
|
|
static int do_bootm_netbsd(int flag, int argc, char * const argv[],
|
|
bootm_headers_t *images)
|
|
{
|
|
void (*loader)(bd_t *, image_header_t *, char *, char *);
|
|
image_header_t *os_hdr, *hdr;
|
|
ulong kernel_data, kernel_len;
|
|
char *consdev;
|
|
char *cmdline;
|
|
|
|
if (flag != BOOTM_STATE_OS_GO)
|
|
return 0;
|
|
|
|
#if defined(CONFIG_FIT)
|
|
if (!images->legacy_hdr_valid) {
|
|
fit_unsupported_reset("NetBSD");
|
|
return 1;
|
|
}
|
|
#endif
|
|
hdr = images->legacy_hdr_os;
|
|
|
|
/*
|
|
* Booting a (NetBSD) kernel image
|
|
*
|
|
* This process is pretty similar to a standalone application:
|
|
* The (first part of an multi-) image must be a stage-2 loader,
|
|
* which in turn is responsible for loading & invoking the actual
|
|
* kernel. The only differences are the parameters being passed:
|
|
* besides the board info strucure, the loader expects a command
|
|
* line, the name of the console device, and (optionally) the
|
|
* address of the original image header.
|
|
*/
|
|
os_hdr = NULL;
|
|
if (image_check_type(&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) {
|
|
image_multi_getimg(hdr, 1, &kernel_data, &kernel_len);
|
|
if (kernel_len)
|
|
os_hdr = hdr;
|
|
}
|
|
|
|
consdev = "";
|
|
#if defined(CONFIG_8xx_CONS_SMC1)
|
|
consdev = "smc1";
|
|
#elif defined(CONFIG_8xx_CONS_SMC2)
|
|
consdev = "smc2";
|
|
#elif defined(CONFIG_8xx_CONS_SCC2)
|
|
consdev = "scc2";
|
|
#elif defined(CONFIG_8xx_CONS_SCC3)
|
|
consdev = "scc3";
|
|
#endif
|
|
|
|
if (argc > 0) {
|
|
ulong len;
|
|
int i;
|
|
|
|
for (i = 0, len = 0; i < argc; i += 1)
|
|
len += strlen(argv[i]) + 1;
|
|
cmdline = malloc(len);
|
|
copy_args(cmdline, argc, argv, ' ');
|
|
} else if ((cmdline = getenv("bootargs")) == NULL) {
|
|
cmdline = "";
|
|
}
|
|
|
|
loader = (void (*)(bd_t *, image_header_t *, char *, char *))images->ep;
|
|
|
|
printf("## Transferring control to NetBSD stage-2 loader "
|
|
"(at address %08lx) ...\n",
|
|
(ulong)loader);
|
|
|
|
bootstage_mark(BOOTSTAGE_ID_RUN_OS);
|
|
|
|
/*
|
|
* NetBSD Stage-2 Loader Parameters:
|
|
* r3: ptr to board info data
|
|
* r4: image address
|
|
* r5: console device
|
|
* r6: boot args string
|
|
*/
|
|
(*loader)(gd->bd, os_hdr, consdev, cmdline);
|
|
|
|
return 1;
|
|
}
|
|
#endif /* CONFIG_BOOTM_NETBSD*/
|
|
|
|
#ifdef CONFIG_LYNXKDI
|
|
static int do_bootm_lynxkdi(int flag, int argc, char * const argv[],
|
|
bootm_headers_t *images)
|
|
{
|
|
image_header_t *hdr = &images->legacy_hdr_os_copy;
|
|
|
|
if (flag != BOOTM_STATE_OS_GO)
|
|
return 0;
|
|
|
|
#if defined(CONFIG_FIT)
|
|
if (!images->legacy_hdr_valid) {
|
|
fit_unsupported_reset("Lynx");
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
lynxkdi_boot((image_header_t *)hdr);
|
|
|
|
return 1;
|
|
}
|
|
#endif /* CONFIG_LYNXKDI */
|
|
|
|
#ifdef CONFIG_BOOTM_RTEMS
|
|
static int do_bootm_rtems(int flag, int argc, char * const argv[],
|
|
bootm_headers_t *images)
|
|
{
|
|
void (*entry_point)(bd_t *);
|
|
|
|
if (flag != BOOTM_STATE_OS_GO)
|
|
return 0;
|
|
|
|
#if defined(CONFIG_FIT)
|
|
if (!images->legacy_hdr_valid) {
|
|
fit_unsupported_reset("RTEMS");
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
entry_point = (void (*)(bd_t *))images->ep;
|
|
|
|
printf("## Transferring control to RTEMS (at address %08lx) ...\n",
|
|
(ulong)entry_point);
|
|
|
|
bootstage_mark(BOOTSTAGE_ID_RUN_OS);
|
|
|
|
/*
|
|
* RTEMS Parameters:
|
|
* r3: ptr to board info data
|
|
*/
|
|
(*entry_point)(gd->bd);
|
|
|
|
return 1;
|
|
}
|
|
#endif /* CONFIG_BOOTM_RTEMS */
|
|
|
|
#if defined(CONFIG_BOOTM_OSE)
|
|
static int do_bootm_ose(int flag, int argc, char * const argv[],
|
|
bootm_headers_t *images)
|
|
{
|
|
void (*entry_point)(void);
|
|
|
|
if (flag != BOOTM_STATE_OS_GO)
|
|
return 0;
|
|
|
|
#if defined(CONFIG_FIT)
|
|
if (!images->legacy_hdr_valid) {
|
|
fit_unsupported_reset("OSE");
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
entry_point = (void (*)(void))images->ep;
|
|
|
|
printf("## Transferring control to OSE (at address %08lx) ...\n",
|
|
(ulong)entry_point);
|
|
|
|
bootstage_mark(BOOTSTAGE_ID_RUN_OS);
|
|
|
|
/*
|
|
* OSE Parameters:
|
|
* None
|
|
*/
|
|
(*entry_point)();
|
|
|
|
return 1;
|
|
}
|
|
#endif /* CONFIG_BOOTM_OSE */
|
|
|
|
#if defined(CONFIG_BOOTM_PLAN9)
|
|
static int do_bootm_plan9(int flag, int argc, char * const argv[],
|
|
bootm_headers_t *images)
|
|
{
|
|
void (*entry_point)(void);
|
|
char *s;
|
|
|
|
if (flag != BOOTM_STATE_OS_GO)
|
|
return 0;
|
|
|
|
#if defined(CONFIG_FIT)
|
|
if (!images->legacy_hdr_valid) {
|
|
fit_unsupported_reset("Plan 9");
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
/* See README.plan9 */
|
|
s = getenv("confaddr");
|
|
if (s != NULL) {
|
|
char *confaddr = (char *)simple_strtoul(s, NULL, 16);
|
|
|
|
if (argc > 0) {
|
|
copy_args(confaddr, argc, argv, '\n');
|
|
} else {
|
|
s = getenv("bootargs");
|
|
if (s != NULL)
|
|
strcpy(confaddr, s);
|
|
}
|
|
}
|
|
|
|
entry_point = (void (*)(void))images->ep;
|
|
|
|
printf("## Transferring control to Plan 9 (at address %08lx) ...\n",
|
|
(ulong)entry_point);
|
|
|
|
bootstage_mark(BOOTSTAGE_ID_RUN_OS);
|
|
|
|
/*
|
|
* Plan 9 Parameters:
|
|
* None
|
|
*/
|
|
(*entry_point)();
|
|
|
|
return 1;
|
|
}
|
|
#endif /* CONFIG_BOOTM_PLAN9 */
|
|
|
|
#if defined(CONFIG_CMD_ELF)
|
|
static int do_bootm_vxworks(int flag, int argc, char * const argv[],
|
|
bootm_headers_t *images)
|
|
{
|
|
char str[80];
|
|
|
|
if (flag != BOOTM_STATE_OS_GO)
|
|
return 0;
|
|
|
|
#if defined(CONFIG_FIT)
|
|
if (!images->legacy_hdr_valid) {
|
|
fit_unsupported_reset("VxWorks");
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
sprintf(str, "%lx", images->ep); /* write entry-point into string */
|
|
setenv("loadaddr", str);
|
|
do_bootvx(NULL, 0, 0, NULL);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int do_bootm_qnxelf(int flag, int argc, char * const argv[],
|
|
bootm_headers_t *images)
|
|
{
|
|
char *local_args[2];
|
|
char str[16];
|
|
|
|
if (flag != BOOTM_STATE_OS_GO)
|
|
return 0;
|
|
|
|
#if defined(CONFIG_FIT)
|
|
if (!images->legacy_hdr_valid) {
|
|
fit_unsupported_reset("QNX");
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
sprintf(str, "%lx", images->ep); /* write entry-point into string */
|
|
local_args[0] = argv[0];
|
|
local_args[1] = str; /* and provide it via the arguments */
|
|
do_bootelf(NULL, 0, 2, local_args);
|
|
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_INTEGRITY
|
|
static int do_bootm_integrity(int flag, int argc, char * const argv[],
|
|
bootm_headers_t *images)
|
|
{
|
|
void (*entry_point)(void);
|
|
|
|
if (flag != BOOTM_STATE_OS_GO)
|
|
return 0;
|
|
|
|
#if defined(CONFIG_FIT)
|
|
if (!images->legacy_hdr_valid) {
|
|
fit_unsupported_reset("INTEGRITY");
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
entry_point = (void (*)(void))images->ep;
|
|
|
|
printf("## Transferring control to INTEGRITY (at address %08lx) ...\n",
|
|
(ulong)entry_point);
|
|
|
|
bootstage_mark(BOOTSTAGE_ID_RUN_OS);
|
|
|
|
/*
|
|
* INTEGRITY Parameters:
|
|
* None
|
|
*/
|
|
(*entry_point)();
|
|
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_CMD_BOOTZ
|
|
|
|
int __weak bootz_setup(ulong image, ulong *start, ulong *end)
|
|
{
|
|
/* Please define bootz_setup() for your platform */
|
|
|
|
puts("Your platform's zImage format isn't supported yet!\n");
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* zImage booting support
|
|
*/
|
|
static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc,
|
|
char * const argv[], bootm_headers_t *images)
|
|
{
|
|
int ret;
|
|
ulong zi_start, zi_end;
|
|
|
|
ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START,
|
|
images, 1);
|
|
|
|
/* Setup Linux kernel zImage 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 = bootz_setup(images->ep, &zi_start, &zi_end);
|
|
if (ret != 0)
|
|
return 1;
|
|
|
|
lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);
|
|
|
|
/*
|
|
* Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
|
|
* have a header that provide this informaiton.
|
|
*/
|
|
if (bootm_find_ramdisk(flag, argc, argv))
|
|
return 1;
|
|
|
|
#if defined(CONFIG_OF_LIBFDT)
|
|
if (bootm_find_fdt(flag, argc, argv))
|
|
return 1;
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
int ret;
|
|
|
|
/* Consume 'bootz' */
|
|
argc--; argv++;
|
|
|
|
if (bootz_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 bootz_help_text[] =
|
|
"[addr [initrd[:size]] [fdt]]\n"
|
|
" - boot Linux zImage stored in memory\n"
|
|
"\tThe argument 'initrd' is optional and specifies the address\n"
|
|
"\tof the initrd in memory. The optional argument ':size' allows\n"
|
|
"\tspecifying the size of RAW initrd.\n"
|
|
#if defined(CONFIG_OF_LIBFDT)
|
|
"\tWhen booting a Linux kernel which requires a flat device-tree\n"
|
|
"\ta third argument is required which is the address of the\n"
|
|
"\tdevice-tree blob. To boot that kernel without an initrd image,\n"
|
|
"\tuse a '-' for the second argument. If you do not pass a third\n"
|
|
"\ta bd_info struct will be passed instead\n"
|
|
#endif
|
|
"";
|
|
#endif
|
|
|
|
U_BOOT_CMD(
|
|
bootz, CONFIG_SYS_MAXARGS, 1, do_bootz,
|
|
"boot Linux zImage image from memory", bootz_help_text
|
|
);
|
|
#endif /* CONFIG_CMD_BOOTZ */
|