image.c

					IH_TYPE_RAMDISK,
					BOOTSTAGE_ID_FIT_RD_START,
					FIT_LOAD_OPTIONAL_NON_ZERO,
					&rd_data, &rd_len);
			if (rd_noffset < 0)
				return 1;

			images->fit_hdr_rd = map_sysmem(rd_addr, 0);
			images->fit_uname_rd = fit_uname_ramdisk;
			images->fit_noffset_rd = rd_noffset;
			break;
#endif
#ifdef CONFIG_ANDROID_BOOT_IMAGE
		case IMAGE_FORMAT_ANDROID:
			android_image_get_ramdisk((void *)images->os.start,
				&rd_data, &rd_len);
			break;
#endif
		default:
#ifdef CONFIG_SUPPORT_RAW_INITRD
			end = NULL;
			if (select)
				end = strchr(select, ':');
			if (end) {
				rd_len = simple_strtoul(++end, NULL, 16);
				rd_data = rd_addr;
			} else
#endif
			{
				puts("Wrong Ramdisk Image Format\n");
				rd_data = rd_len = rd_load = 0;
				return 1;
			}
		}
	} else if (images->legacy_hdr_valid &&
			image_check_type(&images->legacy_hdr_os_copy,
						IH_TYPE_MULTI)) {

		/*
		 * Now check if we have a legacy mult-component image,
		 * get second entry data start address and len.
		 */
		bootstage_mark(BOOTSTAGE_ID_RAMDISK);
		printf("## Loading init Ramdisk from multi component "
				"Legacy Image at %08lx ...\n",
				(ulong)images->legacy_hdr_os);

		image_multi_getimg(images->legacy_hdr_os, 1, &rd_data, &rd_len);
	} else {
		/*
		 * no initrd image
		 */
		bootstage_mark(BOOTSTAGE_ID_NO_RAMDISK);
		rd_len = rd_data = 0;
	}

	if (!rd_data) {
		debug("## No init Ramdisk\n");
	} else {
		*rd_start = rd_data;
		*rd_end = rd_data + rd_len;
	}
	debug("   ramdisk start = 0x%08lx, ramdisk end = 0x%08lx\n",
			*rd_start, *rd_end);

	return 0;
}

#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
/**
 * boot_ramdisk_high - relocate init ramdisk
 * @lmb: pointer to lmb handle, will be used for memory mgmt
 * @rd_data: ramdisk data start address
 * @rd_len: ramdisk data length
 * @initrd_start: pointer to a ulong variable, will hold final init ramdisk
 *      start address (after possible relocation)
 * @initrd_end: pointer to a ulong variable, will hold final init ramdisk
 *      end address (after possible relocation)
 *
 * boot_ramdisk_high() takes a relocation hint from "initrd_high" environment
 * variable and if requested ramdisk data is moved to a specified location.
 *
 * Initrd_start and initrd_end are set to final (after relocation) ramdisk
 * start/end addresses if ramdisk image start and len were provided,
 * otherwise set initrd_start and initrd_end set to zeros.
 *
 * returns:
 *      0 - success
 *     -1 - failure
 */
int boot_ramdisk_high(struct lmb *lmb, ulong rd_data, ulong rd_len,
		  ulong *initrd_start, ulong *initrd_end)
{
	char	*s;
	ulong	initrd_high;
	int	initrd_copy_to_ram = 1;

	if ((s = getenv("initrd_high")) != NULL) {
		/* a value of "no" or a similar string will act like 0,
		 * turning the "load high" feature off. This is intentional.
		 */
		initrd_high = simple_strtoul(s, NULL, 16);
		if (initrd_high == ~0)
			initrd_copy_to_ram = 0;
	} else {
		/* not set, no restrictions to load high */
		initrd_high = ~0;
	}


#ifdef CONFIG_LOGBUFFER
	/* Prevent initrd from overwriting logbuffer */
	lmb_reserve(lmb, logbuffer_base() - LOGBUFF_OVERHEAD, LOGBUFF_RESERVE);
#endif

	debug("## initrd_high = 0x%08lx, copy_to_ram = %d\n",
			initrd_high, initrd_copy_to_ram);

	if (rd_data) {
		if (!initrd_copy_to_ram) {	/* zero-copy ramdisk support */
			debug("   in-place initrd\n");
			*initrd_start = rd_data;
			*initrd_end = rd_data + rd_len;
			lmb_reserve(lmb, rd_data, rd_len);
		} else {
			if (initrd_high)
				*initrd_start = (ulong)lmb_alloc_base(lmb,
						rd_len, 0x1000, initrd_high);
			else
				*initrd_start = (ulong)lmb_alloc(lmb, rd_len,
								 0x1000);

			if (*initrd_start == 0) {
				puts("ramdisk - allocation error\n");
				goto error;
			}
			bootstage_mark(BOOTSTAGE_ID_COPY_RAMDISK);

			*initrd_end = *initrd_start + rd_len;
			printf("   Loading Ramdisk to %08lx, end %08lx ... ",
					*initrd_start, *initrd_end);

			memmove_wd((void *)*initrd_start,
					(void *)rd_data, rd_len, CHUNKSZ);

#ifdef CONFIG_MP
			/*
			 * Ensure the image is flushed to memory to handle
			 * AMP boot scenarios in which we might not be
			 * HW cache coherent
			 */
			flush_cache((unsigned long)*initrd_start, rd_len);
#endif
			puts("OK\n");
		}
	} else {
		*initrd_start = 0;
		*initrd_end = 0;
	}
	debug("   ramdisk load start = 0x%08lx, ramdisk load end = 0x%08lx\n",
			*initrd_start, *initrd_end);

	return 0;

error:
	return -1;
}
#endif /* CONFIG_SYS_BOOT_RAMDISK_HIGH */

int boot_get_setup(bootm_headers_t *images, uint8_t arch,
		   ulong *setup_start, ulong *setup_len)
{
#if defined(CONFIG_FIT)
	return boot_get_setup_fit(images, arch, setup_start, setup_len);
#else
	return -ENOENT;
#endif
}

#if defined(CONFIG_FIT)
int boot_get_loadable(int argc, char * const argv[], bootm_headers_t *images,
		uint8_t arch, const ulong *ld_start, ulong * const ld_len)
{
	/*
	 * These variables are used to hold the current image location
	 * in system memory.
	 */
	ulong tmp_img_addr;
	/*
	 * These two variables are requirements for fit_image_load, but
	 * their values are not used
	 */
	ulong img_data, img_len;
	void *buf;
	int loadables_index;
	int conf_noffset;
	int fit_img_result;
	char *uname;

	/* Check to see if the images struct has a FIT configuration */
	if (!genimg_has_config(images)) {
		debug("## FIT configuration was not specified\n");
		return 0;
	}

	/*
	 * Obtain the os FIT header from the images struct
	 * copy from dataflash if needed
	 */
	tmp_img_addr = map_to_sysmem(images->fit_hdr_os);
	tmp_img_addr = genimg_get_image(tmp_img_addr);
	buf = map_sysmem(tmp_img_addr, 0);
	/*
	 * Check image type. For FIT images get FIT node
	 * and attempt to locate a generic binary.
	 */
	switch (genimg_get_format(buf)) {
	case IMAGE_FORMAT_FIT:
		conf_noffset = fit_conf_get_node(buf, images->fit_uname_cfg);

		for (loadables_index = 0;
		     fdt_get_string_index(buf, conf_noffset,
				FIT_LOADABLE_PROP,
				loadables_index,
				(const char **)&uname) == 0;
		     loadables_index++)
		{
			fit_img_result = fit_image_load(images,
				tmp_img_addr,
				(const char **)&uname,
				&(images->fit_uname_cfg), arch,
				IH_TYPE_LOADABLE,
				BOOTSTAGE_ID_FIT_LOADABLE_START,
				FIT_LOAD_OPTIONAL_NON_ZERO,
				&img_data, &img_len);
			if (fit_img_result < 0) {
				/* Something went wrong! */
				return fit_img_result;
			}
		}
		break;
	default:
		printf("The given image format is not supported (corrupt?)\n");
		return 1;
	}

	return 0;
}
#endif

#ifdef CONFIG_SYS_BOOT_GET_CMDLINE
/**
 * boot_get_cmdline - allocate and initialize kernel cmdline
 * @lmb: pointer to lmb handle, will be used for memory mgmt
 * @cmd_start: pointer to a ulong variable, will hold cmdline start
 * @cmd_end: pointer to a ulong variable, will hold cmdline end
 *
 * boot_get_cmdline() allocates space for kernel command line below
 * BOOTMAPSZ + getenv_bootm_low() address. If "bootargs" U-boot environemnt
 * variable is present its contents is copied to allocated kernel
 * command line.
 *
 * returns:
 *      0 - success
 *     -1 - failure
 */
int boot_get_cmdline(struct lmb *lmb, ulong *cmd_start, ulong *cmd_end)
{
	char *cmdline;
	char *s;

	cmdline = (char *)(ulong)lmb_alloc_base(lmb, CONFIG_SYS_BARGSIZE, 0xf,
				getenv_bootm_mapsize() + getenv_bootm_low());

	if (cmdline == NULL)
		return -1;

	if ((s = getenv("bootargs")) == NULL)
		s = "";

	strcpy(cmdline, s);

	*cmd_start = (ulong) & cmdline[0];
	*cmd_end = *cmd_start + strlen(cmdline);

	debug("## cmdline at 0x%08lx ... 0x%08lx\n", *cmd_start, *cmd_end);

	return 0;
}
#endif /* CONFIG_SYS_BOOT_GET_CMDLINE */

#ifdef CONFIG_SYS_BOOT_GET_KBD
/**
 * boot_get_kbd - allocate and initialize kernel copy of board info
 * @lmb: pointer to lmb handle, will be used for memory mgmt
 * @kbd: double pointer to board info data
 *
 * boot_get_kbd() allocates space for kernel copy of board info data below
 * BOOTMAPSZ + getenv_bootm_low() address and kernel board info is initialized
 * with the current u-boot board info data.
 *
 * returns:
 *      0 - success
 *     -1 - failure
 */
int boot_get_kbd(struct lmb *lmb, bd_t **kbd)
{
	*kbd = (bd_t *)(ulong)lmb_alloc_base(lmb, sizeof(bd_t), 0xf,
				getenv_bootm_mapsize() + getenv_bootm_low());
	if (*kbd == NULL)
		return -1;

	**kbd = *(gd->bd);

	debug("## kernel board info at 0x%08lx\n", (ulong)*kbd);

#if defined(DEBUG) && defined(CONFIG_CMD_BDI)
	do_bdinfo(NULL, 0, 0, NULL);
#endif

	return 0;
}
#endif /* CONFIG_SYS_BOOT_GET_KBD */

#ifdef CONFIG_LMB
int image_setup_linux(bootm_headers_t *images)
{
	ulong of_size = images->ft_len;
	char **of_flat_tree = &images->ft_addr;
	ulong *initrd_start = &images->initrd_start;
	ulong *initrd_end = &images->initrd_end;
	struct lmb *lmb = &images->lmb;
	ulong rd_len;
	int ret;

	if (IMAGE_ENABLE_OF_LIBFDT)
		boot_fdt_add_mem_rsv_regions(lmb, *of_flat_tree);

	if (IMAGE_BOOT_GET_CMDLINE) {
		ret = boot_get_cmdline(lmb, &images->cmdline_start,
				&images->cmdline_end);
		if (ret) {
			puts("ERROR with allocation of cmdline\n");
			return ret;
		}
	}
	if (IMAGE_ENABLE_RAMDISK_HIGH) {
		rd_len = images->rd_end - images->rd_start;
		ret = boot_ramdisk_high(lmb, images->rd_start, rd_len,
				initrd_start, initrd_end);
		if (ret)
			return ret;
	}

	if (IMAGE_ENABLE_OF_LIBFDT) {
		ret = boot_relocate_fdt(lmb, of_flat_tree, &of_size);
		if (ret)
			return ret;
	}

	if (IMAGE_ENABLE_OF_LIBFDT && of_size) {
		ret = image_setup_libfdt(images, *of_flat_tree, of_size, lmb);
		if (ret)
			return ret;
	}

	return 0;
}
#endif /* CONFIG_LMB */
#endif /* !USE_HOSTCC */