image.c

{
	int noffset, confs_noffset;
	int len;

	confs_noffset = fdt_path_offset(fit, FIT_CONFS_PATH);
	if (confs_noffset < 0) {
		debug("Can't find configurations parent node '%s' (%s)\n",
			FIT_CONFS_PATH, fdt_strerror(confs_noffset));
		return confs_noffset;
	}

	if (conf_uname == NULL) {
		/* get configuration unit name from the default property */
		debug("No configuration specified, trying default...\n");
		conf_uname = (char *)fdt_getprop(fit, confs_noffset,
						 FIT_DEFAULT_PROP, &len);
		if (conf_uname == NULL) {
			fit_get_debug(fit, confs_noffset, FIT_DEFAULT_PROP,
					len);
			return len;
		}
		debug("Found default configuration: '%s'\n", conf_uname);
	}

	noffset = fdt_subnode_offset(fit, confs_noffset, conf_uname);
	if (noffset < 0) {
		debug("Can't get node offset for configuration unit name: "
			"'%s' (%s)\n",
			conf_uname, fdt_strerror(noffset));
	}

	return noffset;
}

static int __fit_conf_get_prop_node(const void *fit, int noffset,
		const char *prop_name)
{
	char *uname;
	int len;

	/* get kernel image unit name from configuration kernel property */
	uname = (char *)fdt_getprop(fit, noffset, prop_name, &len);
	if (uname == NULL)
		return len;

	return fit_image_get_node(fit, uname);
}

/**
 * fit_conf_get_kernel_node - get kernel image node offset that corresponds to
 * a given configuration
 * @fit: pointer to the FIT format image header
 * @noffset: configuration node offset
 *
 * fit_conf_get_kernel_node() retrives kernel image node unit name from
 * configuration FIT_KERNEL_PROP property and translates it to the node
 * offset.
 *
 * returns:
 *     image node offset when found (>=0)
 *     negative number on failure (FDT_ERR_* code)
 */
int fit_conf_get_kernel_node(const void *fit, int noffset)
{
	return __fit_conf_get_prop_node(fit, noffset, FIT_KERNEL_PROP);
}

/**
 * fit_conf_get_ramdisk_node - get ramdisk image node offset that corresponds to
 * a given configuration
 * @fit: pointer to the FIT format image header
 * @noffset: configuration node offset
 *
 * fit_conf_get_ramdisk_node() retrives ramdisk image node unit name from
 * configuration FIT_KERNEL_PROP property and translates it to the node
 * offset.
 *
 * returns:
 *     image node offset when found (>=0)
 *     negative number on failure (FDT_ERR_* code)
 */
int fit_conf_get_ramdisk_node(const void *fit, int noffset)
{
	return __fit_conf_get_prop_node(fit, noffset, FIT_RAMDISK_PROP);
}

/**
 * fit_conf_get_fdt_node - get fdt image node offset that corresponds to
 * a given configuration
 * @fit: pointer to the FIT format image header
 * @noffset: configuration node offset
 *
 * fit_conf_get_fdt_node() retrives fdt image node unit name from
 * configuration FIT_KERNEL_PROP property and translates it to the node
 * offset.
 *
 * returns:
 *     image node offset when found (>=0)
 *     negative number on failure (FDT_ERR_* code)
 */
int fit_conf_get_fdt_node(const void *fit, int noffset)
{
	return __fit_conf_get_prop_node(fit, noffset, FIT_FDT_PROP);
}

/**
 * fit_conf_print - prints out the FIT configuration details
 * @fit: pointer to the FIT format image header
 * @noffset: offset of the configuration node
 * @p: pointer to prefix string
 *
 * fit_conf_print() lists all mandatory properies for the processed
 * configuration node.
 *
 * returns:
 *     no returned results
 */
void fit_conf_print(const void *fit, int noffset, const char *p)
{
	char *desc;
	char *uname;
	int ret;

	/* Mandatory properties */
	ret = fit_get_desc(fit, noffset, &desc);
	printf("%s  Description:  ", p);
	if (ret)
		printf("unavailable\n");
	else
		printf("%s\n", desc);

	uname = (char *)fdt_getprop(fit, noffset, FIT_KERNEL_PROP, NULL);
	printf("%s  Kernel:       ", p);
	if (uname == NULL)
		printf("unavailable\n");
	else
		printf("%s\n", uname);

	/* Optional properties */
	uname = (char *)fdt_getprop(fit, noffset, FIT_RAMDISK_PROP, NULL);
	if (uname)
		printf("%s  Init Ramdisk: %s\n", p, uname);

	uname = (char *)fdt_getprop(fit, noffset, FIT_FDT_PROP, NULL);
	if (uname)
		printf("%s  FDT:          %s\n", p, uname);
}

/**
 * fit_check_ramdisk - verify FIT format ramdisk subimage
 * @fit_hdr: pointer to the FIT ramdisk header
 * @rd_noffset: ramdisk subimage node offset within FIT image
 * @arch: requested ramdisk image architecture type
 * @verify: data CRC verification flag
 *
 * fit_check_ramdisk() verifies integrity of the ramdisk subimage and from
 * specified FIT image.
 *
 * returns:
 *     1, on success
 *     0, on failure
 */
#ifndef USE_HOSTCC
static int fit_check_ramdisk(const void *fit, int rd_noffset, uint8_t arch,
				int verify)
{
	fit_image_print(fit, rd_noffset, "   ");

	if (verify) {
		puts("   Verifying Hash Integrity ... ");
		if (!fit_image_check_hashes(fit, rd_noffset)) {
			puts("Bad Data Hash\n");
			show_boot_progress(-125);
			return 0;
		}
		puts("OK\n");
	}

	show_boot_progress(126);
	if (!fit_image_check_os(fit, rd_noffset, IH_OS_LINUX) ||
	    !fit_image_check_arch(fit, rd_noffset, arch) ||
	    !fit_image_check_type(fit, rd_noffset, IH_TYPE_RAMDISK)) {
		printf("No Linux %s Ramdisk Image\n",
				genimg_get_arch_name(arch));
		show_boot_progress(-126);
		return 0;
	}

	show_boot_progress(127);
	return 1;
}
#endif /* USE_HOSTCC */
#endif /* CONFIG_FIT */