[new uImage] New uImage low-level API

Add FDT-based functions for handling new format component images,
configurations, node operations, property get/set, etc.

fit_        - routines handling global new format uImage operations
              like get/set top level property, process all nodes, etc.
fit_image_  - routines handling component images subnodes
fit_conf_   - routines handling configurations node

Signed-off-by: Bartlomiej Sieka <tur@semihalf.com>
Signed-off-by: Marian Balakowicz <m8@semihalf.com>

1 files changed, 151 insertions, 2 deletions

diff --git a/include/image.h b/include/image.h
index ed795521dd2..704a3b442c5 100644
--- a/include/image.h
+++ b/include/image.h
@@ -40,6 +40,7 @@
 #include <lmb.h>
 #include <linux/string.h>
 #include <asm/u-boot.h>
+#endif /* USE_HOSTCC */
 
 /* new uImage format support enabled by default */
 #define CONFIG_FIT		1
@@ -51,7 +52,12 @@
 #if defined(CONFIG_FIT) && !defined(CONFIG_OF_LIBFDT)
 #error "CONFIG_OF_LIBFDT not enabled, required by CONFIG_FIT!"
 #endif
-#endif /* USE_HOSTCC */
+
+#if defined(CONFIG_FIT)
+#include <fdt.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#endif
 
 /*
  * Operating System Codes
@@ -412,16 +418,160 @@ static inline int image_check_target_arch (image_header_t *hdr)
 
 	return 1;
 }
+#endif /* USE_HOSTCC */
 
 /*******************************************************************/
 /* New uImage format specific code (prefixed with fit_) */
 /*******************************************************************/
 #if defined(CONFIG_FIT)
+
+#define FIT_IMAGES_PATH		"/images"
+#define FIT_CONFS_PATH		"/configurations"
+
+/* hash node */
+#define FIT_HASH_NODENAME	"hash"
+#define FIT_ALGO_PROP		"algo"
+#define FIT_VALUE_PROP		"value"
+
+/* image node */
+#define FIT_DATA_PROP		"data"
+#define FIT_TIMESTAMP_PROP	"timestamp"
+#define FIT_DESC_PROP		"description"
+#define FIT_ARCH_PROP		"arch"
+#define FIT_TYPE_PROP		"type"
+#define FIT_OS_PROP		"os"
+#define FIT_COMP_PROP		"compression"
+#define FIT_ENTRY_PROP		"entry"
+#define FIT_LOAD_PROP		"load"
+
+/* configuration node */
+#define FIT_KERNEL_PROP		"kernel"
+#define FIT_RAMDISK_PROP	"ramdisk"
+#define FIT_FDT_PROP		"fdt"
+#define FIT_DEFAULT_PROP	"default"
+
+#define FIT_MAX_HASH_LEN	20	/* max(crc32_len(4), sha1_len(20)) */
+
+/* cmdline argument format parsing */
 inline int fit_parse_conf (const char *spec, ulong addr_curr,
 		ulong *addr, const char **conf_name);
 inline int fit_parse_subimage (const char *spec, ulong addr_curr,
 		ulong *addr, const char **image_name);
 
+inline void fit_print_contents (const void *fit);
+inline void fit_print_contents_noindent (const void *fit);
+void fit_image_print (const void *fit, int noffset, const char *p);
+void fit_image_print_hash (const void *fit, int noffset, const char *p);
+
+/**
+ * fit_get_end - get FIT image size
+ * @fit: pointer to the FIT format image header
+ *
+ * returns:
+ *     size of the FIT image (blob) in memory
+ */
+static inline ulong fit_get_size (const void *fit)
+{
+	return fdt_totalsize (fit);
+}
+
+/**
+ * fit_get_end - get FIT image end
+ * @fit: pointer to the FIT format image header
+ *
+ * returns:
+ *     end address of the FIT image (blob) in memory
+ */
+static inline ulong fit_get_end (const void *fit)
+{
+	return (ulong)fit + fdt_totalsize (fit);
+}
+
+/**
+ * fit_get_name - get FIT node name
+ * @fit: pointer to the FIT format image header
+ *
+ * returns:
+ *     NULL, on error
+ *     pointer to node name, on success
+ */
+static inline const char *fit_get_name (const void *fit_hdr,
+		int noffset, int *len)
+{
+	return fdt_get_name (fit_hdr, noffset, len);
+}
+
+int fit_get_desc (const void *fit, int noffset, char **desc);
+int fit_get_timestamp (const void *fit, int noffset, time_t *timestamp);
+
+int fit_image_get_node (const void *fit, const char *image_uname);
+int fit_image_get_os (const void *fit, int noffset, uint8_t *os);
+int fit_image_get_arch (const void *fit, int noffset, uint8_t *arch);
+int fit_image_get_type (const void *fit, int noffset, uint8_t *type);
+int fit_image_get_comp (const void *fit, int noffset, uint8_t *comp);
+int fit_image_get_load (const void *fit, int noffset, ulong *load);
+int fit_image_get_entry (const void *fit, int noffset, ulong *entry);
+int fit_image_get_data (const void *fit, int noffset,
+				const void **data, size_t *size);
+
+int fit_image_hash_get_algo (const void *fit, int noffset, char **algo);
+int fit_image_hash_get_value (const void *fit, int noffset, uint8_t **value,
+				int *value_len);
+
+int fit_set_timestamp (void *fit, int noffset, time_t timestamp);
+int fit_set_hashes (void *fit);
+int fit_image_set_hashes (void *fit, int image_noffset);
+int fit_image_hash_set_value (void *fit, int noffset, uint8_t *value,
+				int value_len);
+
+int fit_image_check_hashes (const void *fit, int noffset);
+int fit_image_check_os (const void *fit, int noffset, uint8_t os);
+int fit_image_check_arch (const void *fit, int noffset, uint8_t arch);
+int fit_image_check_type (const void *fit, int noffset, uint8_t type);
+int fit_image_check_comp (const void *fit, int noffset, uint8_t comp);
+int fit_check_format (const void *fit);
+
+int fit_conf_get_node (const void *fit, const char *conf_uname);
+int fit_conf_get_kernel_node (const void *fit, int noffset);
+int fit_conf_get_ramdisk_node (const void *fit, int noffset);
+int fit_conf_get_fdt_node (const void *fit, int noffset);
+
+void fit_conf_print (const void *fit, int noffset, const char *p);
+
+#ifndef USE_HOSTCC
+static inline int fit_image_check_target_arch (const void *fdt, int node)
+{
+#if defined(__ARM__)
+	if (!fit_image_check_arch (fdt, node, IH_ARCH_ARM))
+#elif defined(__avr32__)
+	if (!fit_image_check_arch (fdt, node, IH_ARCH_AVR32))
+#elif defined(__bfin__)
+	if (!fit_image_check_arch (fdt, node, IH_ARCH_BLACKFIN))
+#elif defined(__I386__)
+	if (!fit_image_check_arch (fdt, node, IH_ARCH_I386))
+#elif defined(__M68K__)
+	if (!fit_image_check_arch (fdt, node, IH_ARCH_M68K))
+#elif defined(__microblaze__)
+	if (!fit_image_check_arch (fdt, node, IH_ARCH_MICROBLAZE))
+#elif defined(__mips__)
+	if (!fit_image_check_arch (fdt, node, IH_ARCH_MIPS))
+#elif defined(__nios__)
+	if (!fit_image_check_arch (fdt, node, IH_ARCH_NIOS))
+#elif defined(__nios2__)
+	if (!fit_image_check_arch (fdt, node, IH_ARCH_NIOS2))
+#elif defined(__PPC__)
+	if (!fit_image_check_arch (fdt, node, IH_ARCH_PPC))
+#elif defined(__sh__)
+	if (!fit_image_check_arch (fdt, node, IH_ARCH_SH))
+#else
+# error Unknown CPU type
+#endif
+		return 0;
+
+	return 1;
+}
+#endif /* USE_HOSTCC */
+
 #ifdef CONFIG_FIT_VERBOSE
 #define fit_unsupported(msg)	printf ("! %s:%d " \
 				"FIT images not supported for '%s'\n", \
@@ -436,6 +586,5 @@ inline int fit_parse_subimage (const char *spec, ulong addr_curr,
 #define fit_unsupported_reset(msg)
 #endif /* CONFIG_FIT_VERBOSE */
 #endif /* CONFIG_FIT */
-#endif /* USE_HOSTCC */
 
 #endif	/* __IMAGE_H__ */