[new uImage] Update naming convention for bootm/uImage related code

This patch introduces the following prefix convention for the
image format handling and bootm related code:

genimg_		- dual format shared code
image_		- legacy uImage format specific code
fit_		- new uImage format specific code
boot_		- booting process related code

Related routines are renamed and a few pieces of code are moved around and
re-grouped.

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

11 files changed, 249 insertions, 242 deletions

diff --git a/common/cmd_autoscript.c b/common/cmd_autoscript.c
index f9ab1d9a13..60ffc7dbce 100644
--- a/common/cmd_autoscript.c
+++ b/common/cmd_autoscript.c
@@ -61,7 +61,7 @@ autoscript (ulong addr)
 
 	verify = getenv_verify ();
 
-	switch (gen_image_get_format ((void *)addr)) {
+	switch (genimg_get_format ((void *)addr)) {
 	case IMAGE_FORMAT_LEGACY:
 		hdr = (image_header_t *)addr;
 
@@ -90,7 +90,7 @@ autoscript (ulong addr)
 		/* get length of script */
 		data = (ulong *)image_get_data (hdr);
 
-		if ((len = image_to_cpu (*data)) == 0) {
+		if ((len = uimage_to_cpu (*data)) == 0) {
 			puts ("Empty Script\n");
 			return 1;
 		}
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c
index 8595ef6889..10403aa0fa 100644
--- a/common/cmd_bootm.c
+++ b/common/cmd_bootm.c
@@ -66,7 +66,7 @@ static int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
 static void fixup_silent_linux (void);
 #endif
 
-static void *get_kernel (cmd_tbl_t *cmdtp, int flag,int argc, char *argv[],
+static void *boot_get_kernel (cmd_tbl_t *cmdtp, int flag,int argc, char *argv[],
 		bootm_headers_t *images, ulong *os_data, ulong *os_len);
 extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
 
@@ -143,7 +143,7 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	board_lmb_reserve(&lmb);
 
 	/* get kernel image header, start address and length */
-	os_hdr = get_kernel (cmdtp, flag, argc, argv,
+	os_hdr = boot_get_kernel (cmdtp, flag, argc, argv,
 			&images, &os_data, &os_len);
 	if (os_len == 0)
 		return 1;
@@ -151,7 +151,7 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	show_boot_progress (6);
 
 	/* get image parameters */
-	switch (gen_image_get_format (os_hdr)) {
+	switch (genimg_get_format (os_hdr)) {
 	case IMAGE_FORMAT_LEGACY:
 		type = image_get_type (os_hdr);
 		comp = image_get_comp (os_hdr);
@@ -172,7 +172,7 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 
 	image_start = (ulong)os_hdr;
 	load_end = 0;
-	type_name = image_get_type_name (type);
+	type_name = genimg_get_type_name (type);
 
 	/*
 	 * We have reached the point of no return: we are going to
@@ -309,16 +309,16 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 }
 
 /**
- * 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
+ * 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
  *
- * get_kernel() tries to find a kernel image, verifies its integrity
- * and locates kernel data.
+ * image_get_kernel() verifies legacy image integrity and returns pointer to
+ * legacy image header if image verification was completed successfully.
  *
  * returns:
- *     pointer to image header if valid image was found, plus kernel start
- *     address and length, otherwise NULL
+ *     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)
 {
@@ -360,18 +360,18 @@ static image_header_t *image_get_kernel (ulong img_addr, int verify)
 }
 
 /**
- * get_kernel - find kernel image
+ * 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
  *
- * get_kernel() tries to find a kernel image, verifies its integrity
+ * 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 void *get_kernel (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
+static void *boot_get_kernel (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 		bootm_headers_t *images, ulong *os_data, ulong *os_len)
 {
 	image_header_t	*hdr;
@@ -406,10 +406,10 @@ static void *get_kernel (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 	printf ("## Booting kernel image at %08lx ...\n", img_addr);
 
 	/* copy from dataflash if needed */
-	img_addr = gen_get_image (img_addr);
+	img_addr = genimg_get_image (img_addr);
 
 	/* check image type, for FIT images get FIT kernel node */
-	switch (gen_image_get_format ((void *)img_addr)) {
+	switch (genimg_get_format ((void *)img_addr)) {
 	case IMAGE_FORMAT_LEGACY:
 
 		debug ("*  kernel: legacy format image\n");
@@ -531,7 +531,7 @@ static int image_info (ulong addr)
 
 	printf ("\n## Checking Image at %08lx ...\n", addr);
 
-	switch (gen_image_get_format (hdr)) {
+	switch (genimg_get_format (hdr)) {
 	case IMAGE_FORMAT_LEGACY:
 		puts ("   Legacy image found\n");
 		if (!image_check_magic (hdr)) {
@@ -599,7 +599,7 @@ int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 			if (!hdr)
 				goto next_sector;
 
-			switch (gen_image_get_format (hdr)) {
+			switch (genimg_get_format (hdr)) {
 			case IMAGE_FORMAT_LEGACY:
 				if (!image_check_magic (hdr))
 					goto next_sector;
diff --git a/common/cmd_doc.c b/common/cmd_doc.c
index 3358b04622..293b1aa674 100644
--- a/common/cmd_doc.c
+++ b/common/cmd_doc.c
@@ -261,7 +261,7 @@ int do_docboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	}
 	show_boot_progress (38);
 
-	switch (gen_image_get_format ((void *)addr)) {
+	switch (genimg_get_format ((void *)addr)) {
 	case IMAGE_FORMAT_LEGACY:
 		hdr = (image_header_t *)addr;
 
diff --git a/common/cmd_fdc.c b/common/cmd_fdc.c
index b6e023a5da..80301b9d52 100644
--- a/common/cmd_fdc.c
+++ b/common/cmd_fdc.c
@@ -836,7 +836,7 @@ int do_fdcboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 		return 1;
 	}
 
-	switch (gen_image_get_format ((void *)addr)) {
+	switch (genimg_get_format ((void *)addr)) {
 	case IMAGE_FORMAT_LEGACY:
 		hdr = (image_header_t *)addr;
 		if (!image_check_magic (hdr)) {
diff --git a/common/cmd_fpga.c b/common/cmd_fpga.c
index 10199f59d4..0bb82f68a8 100644
--- a/common/cmd_fpga.c
+++ b/common/cmd_fpga.c
@@ -216,7 +216,7 @@ int do_fpga (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 		break;
 
 	case FPGA_LOADMK:
-		switch (gen_image_get_format (fpga_data)) {
+		switch (genimg_get_format (fpga_data)) {
 		case IMAGE_FORMAT_LEGACY:
 			{
 				image_header_t *hdr = (image_header_t *)fpga_data;
diff --git a/common/cmd_ide.c b/common/cmd_ide.c
index bef04db4f6..79b7dfb7fc 100644
--- a/common/cmd_ide.c
+++ b/common/cmd_ide.c
@@ -446,7 +446,7 @@ int do_diskboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	}
 	show_boot_progress (48);
 
-	switch (gen_image_get_format ((void *)addr)) {
+	switch (genimg_get_format ((void *)addr)) {
 	case IMAGE_FORMAT_LEGACY:
 		hdr = (image_header_t *)addr;
 
diff --git a/common/cmd_nand.c b/common/cmd_nand.c
index b099afeca0..86959dc2c0 100644
--- a/common/cmd_nand.c
+++ b/common/cmd_nand.c
@@ -512,7 +512,7 @@ static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
 	}
 	show_boot_progress (56);
 
-	switch (gen_image_get_format ((void *)addr)) {
+	switch (genimg_get_format ((void *)addr)) {
 	case IMAGE_FORMAT_LEGACY:
 		hdr = (image_header_t *)addr;
 
@@ -994,7 +994,7 @@ int do_nandboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	}
 	show_boot_progress (56);
 
-	switch (gen_image_get_format ((void *)addr)) {
+	switch (genimg_get_format ((void *)addr)) {
 	case IMAGE_FORMAT_LEGACY:
 		hdr = (image_header_t *)addr;
 
diff --git a/common/cmd_scsi.c b/common/cmd_scsi.c
index 42b3072984..786880521b 100644
--- a/common/cmd_scsi.c
+++ b/common/cmd_scsi.c
@@ -273,7 +273,7 @@ int do_scsiboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 		return 1;
 	}
 
-	switch (gen_image_get_format ((void *)addr)) {
+	switch (genimg_get_format ((void *)addr)) {
 	case IMAGE_FORMAT_LEGACY:
 		hdr = (image_header_t *)addr;
 
diff --git a/common/cmd_usb.c b/common/cmd_usb.c
index ad3873c2cb..8ee7d27675 100644
--- a/common/cmd_usb.c
+++ b/common/cmd_usb.c
@@ -386,7 +386,7 @@ int do_usbboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 		return 1;
 	}
 
-	switch (gen_image_get_format ((void *)addr)) {
+	switch (genimg_get_format ((void *)addr)) {
 	case IMAGE_FORMAT_LEGACY:
 		hdr = (image_header_t *)addr;
 
diff --git a/common/cmd_ximg.c b/common/cmd_ximg.c
index 4dadc3709d..360b05e1b3 100644
--- a/common/cmd_ximg.c
+++ b/common/cmd_ximg.c
@@ -57,7 +57,7 @@ do_imgextract(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	}
 
 
-	switch (gen_image_get_format ((void *)addr)) {
+	switch (genimg_get_format ((void *)addr)) {
 	case IMAGE_FORMAT_LEGACY:
 
 		printf("## Copying from legacy image at %08lx ...\n", addr);
@@ -104,7 +104,7 @@ do_imgextract(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 			data += 4;
 			if (argc > 2 && part > i) {
 				u_long tail;
-				len = image_to_cpu (len_ptr[i]);
+				len = uimage_to_cpu (len_ptr[i]);
 				tail = len % 4;
 				data += len;
 				if (tail) {
@@ -116,7 +116,7 @@ do_imgextract(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 			printf("Bad Image Part\n");
 			return 1;
 		}
-		len = image_to_cpu (len_ptr[part]);
+		len = uimage_to_cpu (len_ptr[part]);
 #if defined(CONFIG_FIT)
 	case IMAGE_FORMAT_FIT:
 		fit_unsupported ("imxtract");
diff --git a/common/image.c b/common/image.c
index 9e446faa73..99ed3b8aa8 100644
--- a/common/image.c
+++ b/common/image.c
@@ -68,6 +68,9 @@ static image_header_t* image_get_ramdisk (cmd_tbl_t *cmdtp, int flag,
 
 unsigned long crc32 (unsigned long, const unsigned char *, unsigned int);
 
+/*****************************************************************************/
+/* Legacy format routines */
+/*****************************************************************************/
 int image_check_hcrc (image_header_t *hdr)
 {
 	ulong hcrc;
@@ -120,61 +123,6 @@ int image_check_dcrc_wd (image_header_t *hdr, ulong chunksz)
 	return (dcrc == image_get_dcrc (hdr));
 }
 
-int getenv_verify (void)
-{
-	char *s = getenv ("verify");
-	return (s && (*s == 'n')) ? 0 : 1;
-}
-
-int getenv_autostart (void)
-{
-	char *s = getenv ("autostart");
-	return (s && (*s == 'n')) ? 0 : 1;
-}
-
-ulong getenv_bootm_low(void)
-{
-	char *s = getenv ("bootm_low");
-	if (s) {
-		ulong tmp = simple_strtoul (s, NULL, 16);
-		return tmp;
-	}
-
-#ifdef CFG_SDRAM_BASE
-	return CFG_SDRAM_BASE;
-#else
-	return 0;
-#endif
-}
-
-ulong getenv_bootm_size(void)
-{
-	char *s = getenv ("bootm_size");
-	if (s) {
-		ulong tmp = simple_strtoul (s, NULL, 16);
-		return tmp;
-	}
-
-	return gd->bd->bi_memsize;
-}
-
-void memmove_wd (void *to, void *from, size_t len, ulong chunksz)
-{
-#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
-	while (len > 0) {
-		size_t tail = (len > chunksz) ? chunksz : len;
-		WATCHDOG_RESET ();
-		memmove (to, from, tail);
-		to += tail;
-		from += tail;
-		len -= tail;
-	}
-#else	/* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
-	memmove (to, from, len);
-#endif	/* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
-}
-#endif /* USE_HOSTCC */
-
 /**
  * image_multi_count - get component (sub-image) count
  * @hdr: pointer to the header of the multi component image
@@ -262,7 +210,185 @@ void image_multi_getimg (image_header_t *hdr, ulong idx,
 }
 
 #ifndef USE_HOSTCC
-const char* image_get_os_name (uint8_t os)
+static void image_print_type (image_header_t *hdr)
+{
+	const char *os, *arch, *type, *comp;
+
+	os = genimg_get_os_name (image_get_os (hdr));
+	arch = genimg_get_arch_name (image_get_arch (hdr));
+	type = genimg_get_type_name (image_get_type (hdr));
+	comp = genimg_get_comp_name (image_get_comp (hdr));
+
+	printf ("%s %s %s (%s)", arch, os, type, comp);
+}
+
+void image_print_contents (image_header_t *hdr)
+{
+#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE)
+	time_t timestamp = (time_t)image_get_time (hdr);
+	struct rtc_time tm;
+#endif
+
+	printf ("   Image Name:   %.*s\n", IH_NMLEN, image_get_name (hdr));
+
+#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE)
+	to_tm (timestamp, &tm);
+	printf ("   Created:      %4d-%02d-%02d  %2d:%02d:%02d UTC\n",
+		tm.tm_year, tm.tm_mon, tm.tm_mday,
+		tm.tm_hour, tm.tm_min, tm.tm_sec);
+#endif
+	puts ("   Image Type:   ");
+	image_print_type (hdr);
+
+	printf ("\n   Data Size:    %d Bytes = ", image_get_data_size (hdr));
+	print_size (image_get_data_size (hdr), "\n");
+	printf ("   Load Address: %08x\n"
+		"   Entry Point:  %08x\n",
+		 image_get_load (hdr), image_get_ep (hdr));
+
+	if (image_check_type (hdr, IH_TYPE_MULTI)) {
+		int i;
+		ulong data, len;
+		ulong count = image_multi_count (hdr);
+
+		puts ("   Contents:\n");
+		for (i = 0; i < count; i++) {
+			image_multi_getimg (hdr, i, &data, &len);
+			printf ("   Image %d: %8ld Bytes = ", i, len);
+			print_size (len, "\n");
+		}
+	}
+}
+
+/**
+ * image_get_ramdisk - get and verify ramdisk image
+ * @cmdtp: command table pointer
+ * @flag: command flag
+ * @argc: command argument count
+ * @argv: command argument list
+ * @rd_addr: ramdisk image start address
+ * @arch: expected ramdisk architecture
+ * @verify: checksum verification flag
+ *
+ * image_get_ramdisk() returns a pointer to the verified ramdisk image
+ * header. Routine receives image start address and expected architecture
+ * flag. Verification done covers data and header integrity and os/type/arch
+ * fields checking.
+ *
+ * If dataflash support is enabled routine checks for dataflash addresses
+ * and handles required dataflash reads.
+ *
+ * returns:
+ *     pointer to a ramdisk image header, if image was found and valid
+ *     otherwise, return NULL
+ */
+static image_header_t* image_get_ramdisk (cmd_tbl_t *cmdtp, int flag,
+		int argc, char *argv[],
+		ulong rd_addr, uint8_t arch, int verify)
+{
+	image_header_t *rd_hdr;
+
+	show_boot_progress (9);
+	rd_hdr = (image_header_t *)rd_addr;
+
+	if (!image_check_magic (rd_hdr)) {
+		puts ("Bad Magic Number\n");
+		show_boot_progress (-10);
+		return NULL;
+	}
+
+	if (!image_check_hcrc (rd_hdr)) {
+		puts ("Bad Header Checksum\n");
+		show_boot_progress (-11);
+		return NULL;
+	}
+
+	show_boot_progress (10);
+	image_print_contents (rd_hdr);
+
+	if (verify) {
+		puts("   Verifying Checksum ... ");
+		if (!image_check_dcrc_wd (rd_hdr, CHUNKSZ)) {
+			puts ("Bad Data CRC\n");
+			show_boot_progress (-12);
+			return NULL;
+		}
+		puts("OK\n");
+	}
+
+	show_boot_progress (11);
+
+	if (!image_check_os (rd_hdr, IH_OS_LINUX) ||
+	    !image_check_arch (rd_hdr, arch) ||
+	    !image_check_type (rd_hdr, IH_TYPE_RAMDISK)) {
+		printf ("No Linux %s Ramdisk Image\n",
+				genimg_get_arch_name(arch));
+		show_boot_progress (-13);
+		return NULL;
+	}
+
+	return rd_hdr;
+}
+
+/*****************************************************************************/
+/* Shared dual-format routines */
+/*****************************************************************************/
+int getenv_verify (void)
+{
+	char *s = getenv ("verify");
+	return (s && (*s == 'n')) ? 0 : 1;
+}
+
+int getenv_autostart (void)
+{
+	char *s = getenv ("autostart");
+	return (s && (*s == 'n')) ? 0 : 1;
+}
+
+ulong getenv_bootm_low(void)
+{
+	char *s = getenv ("bootm_low");
+	if (s) {
+		ulong tmp = simple_strtoul (s, NULL, 16);
+		return tmp;
+	}
+
+#ifdef CFG_SDRAM_BASE
+	return CFG_SDRAM_BASE;
+#else
+	return 0;
+#endif
+}
+
+ulong getenv_bootm_size(void)
+{
+	char *s = getenv ("bootm_size");
+	if (s) {
+		ulong tmp = simple_strtoul (s, NULL, 16);
+		return tmp;
+	}
+
+	return gd->bd->bi_memsize;
+}
+
+void memmove_wd (void *to, void *from, size_t len, ulong chunksz)
+{
+#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
+	while (len > 0) {
+		size_t tail = (len > chunksz) ? chunksz : len;
+		WATCHDOG_RESET ();
+		memmove (to, from, tail);
+		to += tail;
+		from += tail;
+		len -= tail;
+	}
+#else	/* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
+	memmove (to, from, len);
+#endif	/* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
+}
+#endif /* USE_HOSTCC */
+
+const char* genimg_get_os_name (uint8_t os)
 {
 	const char *name;
 
@@ -286,7 +412,7 @@ const char* image_get_os_name (uint8_t os)
 	return name;
 }
 
-const char* image_get_arch_name (uint8_t arch)
+const char* genimg_get_arch_name (uint8_t arch)
 {
 	const char *name;
 
@@ -315,7 +441,7 @@ const char* image_get_arch_name (uint8_t arch)
 	return name;
 }
 
-const char* image_get_type_name (uint8_t type)
+const char* genimg_get_type_name (uint8_t type)
 {
 	const char *name;
 
@@ -334,7 +460,7 @@ const char* image_get_type_name (uint8_t type)
 	return name;
 }
 
-const char* image_get_comp_name (uint8_t comp)
+const char* genimg_get_comp_name (uint8_t comp)
 {
 	const char *name;
 
@@ -348,71 +474,21 @@ const char* image_get_comp_name (uint8_t comp)
 	return name;
 }
 
-static void image_print_type (image_header_t *hdr)
-{
-	const char *os, *arch, *type, *comp;
-
-	os = image_get_os_name (image_get_os (hdr));
-	arch = image_get_arch_name (image_get_arch (hdr));
-	type = image_get_type_name (image_get_type (hdr));
-	comp = image_get_comp_name (image_get_comp (hdr));
-
-	printf ("%s %s %s (%s)", arch, os, type, comp);
-}
-
-void image_print_contents (image_header_t *hdr)
-{
-#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE)
-	time_t timestamp = (time_t)image_get_time (hdr);
-	struct rtc_time tm;
-#endif
-
-	printf ("   Image Name:   %.*s\n", IH_NMLEN, image_get_name (hdr));
-
-#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE)
-	to_tm (timestamp, &tm);
-	printf ("   Created:      %4d-%02d-%02d  %2d:%02d:%02d UTC\n",
-		tm.tm_year, tm.tm_mon, tm.tm_mday,
-		tm.tm_hour, tm.tm_min, tm.tm_sec);
-#endif
-	puts ("   Image Type:   ");
-	image_print_type (hdr);
-
-	printf ("\n   Data Size:    %d Bytes = ", image_get_data_size (hdr));
-	print_size (image_get_data_size (hdr), "\n");
-	printf ("   Load Address: %08x\n"
-		"   Entry Point:  %08x\n",
-		 image_get_load (hdr), image_get_ep (hdr));
-
-	if (image_check_type (hdr, IH_TYPE_MULTI)) {
-		int i;
-		ulong data, len;
-		ulong count = image_multi_count (hdr);
-
-		puts ("   Contents:\n");
-		for (i = 0; i < count; i++) {
-			image_multi_getimg (hdr, i, &data, &len);
-			printf ("   Image %d: %8ld Bytes = ", i, len);
-			print_size (len, "\n");
-		}
-	}
-}
-
 /**
- * gen_image_get_format - get image format type
+ * genimg_get_format - get image format type
  * @img_addr: image start address
  *
- * gen_image_get_format() checks whether provided address points to a valid
+ * genimg_get_format() checks whether provided address points to a valid
  * legacy or FIT image.
  *
  * New uImage format and FDT blob are based on a libfdt. FDT blob
  * may be passed directly or embedded in a FIT image. In both situations
- * gen_image_get_format() must be able to dectect libfdt header.
+ * genimg_get_format() must be able to dectect libfdt header.
  *
  * returns:
  *     image format type or IMAGE_FORMAT_INVALID if no image is present
  */
-int gen_image_get_format (void *img_addr)
+int genimg_get_format (void *img_addr)
 {
 	ulong		format = IMAGE_FORMAT_INVALID;
 	image_header_t	*hdr;
@@ -435,16 +511,16 @@ int gen_image_get_format (void *img_addr)
 }
 
 /**
- * gen_get_image - get image from special storage (if necessary)
+ * genimg_get_image - get image from special storage (if necessary)
  * @img_addr: image start address
  *
- * gen_get_image() checks if provided image start adddress is located
+ * genimg_get_image() checks if provided image start adddress is located
  * in a dataflash storage. If so, image is moved to a system RAM memory.
  *
  * returns:
  *     image start address after possible relocation from special storage
  */
-ulong gen_get_image (ulong img_addr)
+ulong genimg_get_image (ulong img_addr)
 {
 	ulong ram_addr = img_addr;
 
@@ -469,7 +545,7 @@ ulong gen_get_image (ulong img_addr)
 		read_dataflash (img_addr, h_size, (char *)ram_addr);
 
 		/* get data size */
-		switch (gen_image_get_format ((void *)ram_addr)) {
+		switch (genimg_get_format ((void *)ram_addr)) {
 		case IMAGE_FORMAT_LEGACY:
 			d_size = image_get_data_size ((image_header_t *)ram_addr);
 			debug ("   Legacy format image found at 0x%08lx, size 0x%08lx\n",
@@ -502,77 +578,7 @@ ulong gen_get_image (ulong img_addr)
 }
 
 /**
- * image_get_ramdisk - get and verify ramdisk image
- * @cmdtp: command table pointer
- * @flag: command flag
- * @argc: command argument count
- * @argv: command argument list
- * @rd_addr: ramdisk image start address
- * @arch: expected ramdisk architecture
- * @verify: checksum verification flag
- *
- * image_get_ramdisk() returns a pointer to the verified ramdisk image
- * header. Routine receives image start address and expected architecture
- * flag. Verification done covers data and header integrity and os/type/arch
- * fields checking.
- *
- * If dataflash support is enabled routine checks for dataflash addresses
- * and handles required dataflash reads.
- *
- * returns:
- *     pointer to a ramdisk image header, if image was found and valid
- *     otherwise, return NULL
- */
-static image_header_t* image_get_ramdisk (cmd_tbl_t *cmdtp, int flag,
-		int argc, char *argv[],
-		ulong rd_addr, uint8_t arch, int verify)
-{
-	image_header_t *rd_hdr;
-
-	show_boot_progress (9);
-	rd_hdr = (image_header_t *)rd_addr;
-
-	if (!image_check_magic (rd_hdr)) {
-		puts ("Bad Magic Number\n");
-		show_boot_progress (-10);
-		return NULL;
-	}
-
-	if (!image_check_hcrc (rd_hdr)) {
-		puts ("Bad Header Checksum\n");
-		show_boot_progress (-11);
-		return NULL;
-	}
-
-	show_boot_progress (10);
-	image_print_contents (rd_hdr);
-
-	if (verify) {
-		puts("   Verifying Checksum ... ");
-		if (!image_check_dcrc_wd (rd_hdr, CHUNKSZ)) {
-			puts ("Bad Data CRC\n");
-			show_boot_progress (-12);
-			return NULL;
-		}
-		puts("OK\n");
-	}
-
-	show_boot_progress (11);
-
-	if (!image_check_os (rd_hdr, IH_OS_LINUX) ||
-	    !image_check_arch (rd_hdr, arch) ||
-	    !image_check_type (rd_hdr, IH_TYPE_RAMDISK)) {
-		printf ("No Linux %s Ramdisk Image\n",
-				image_get_arch_name(arch));
-		show_boot_progress (-13);
-		return NULL;
-	}
-
-	return rd_hdr;
-}
-
-/**
- * get_ramdisk - main ramdisk handling routine
+ * boot_get_ramdisk - main ramdisk handling routine
  * @cmdtp: command table pointer
  * @flag: command flag
  * @argc: command argument count
@@ -582,7 +588,7 @@ static image_header_t* image_get_ramdisk (cmd_tbl_t *cmdtp, int flag,
  * @rd_start: pointer to a ulong variable, will hold ramdisk start address
  * @rd_end: pointer to a ulong variable, will hold ramdisk end
  *
- * get_ramdisk() is responsible for finding a valid ramdisk image.
+ * boot_get_ramdisk() is responsible for finding a valid ramdisk image.
  * Curently supported are the following ramdisk sources:
  *      - multicomponent kernel/ramdisk image,
  *      - commandline provided address of decicated ramdisk image.
@@ -593,7 +599,7 @@ static image_header_t* image_get_ramdisk (cmd_tbl_t *cmdtp, int flag,
  *     rd_start and rd_end are set to 0 if no ramdisk exists
  *     return 1 if ramdisk image is found but corrupted
  */
-int get_ramdisk (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
+int boot_get_ramdisk (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 		bootm_headers_t *images, uint8_t arch,
 		ulong *rd_start, ulong *rd_end)
 {
@@ -645,14 +651,14 @@ int get_ramdisk (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 		/* copy from dataflash if needed */
 		printf ("## Loading init Ramdisk Image at %08lx ...\n",
 				rd_addr);
-		rd_addr = gen_get_image (rd_addr);
+		rd_addr = genimg_get_image (rd_addr);
 
 		/*
 		 * Check if there is an initrd image at the
 		 * address provided in the second bootm argument
 		 * check image type, for FIT images get FIT node.
 		 */
-		switch (gen_image_get_format ((void *)rd_addr)) {
+		switch (genimg_get_format ((void *)rd_addr)) {
 		case IMAGE_FORMAT_LEGACY:
 
 			debug ("*  ramdisk: legacy format image\n");
@@ -729,7 +735,7 @@ int get_ramdisk (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 
 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
 /**
- * ramdisk_high - relocate init ramdisk
+ * 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
@@ -738,18 +744,18 @@ int get_ramdisk (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
  * @initrd_end: pointer to a ulong variable, will hold final init ramdisk
  *      end address (after possible relocation)
  *
- * ramdisk_high() takes a relocation hint from "initrd_high" environement
+ * boot_ramdisk_high() takes a relocation hint from "initrd_high" environement
  * 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:
- *     - 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
+ *      0 - success
+ *     -1 - failure
  */
-int ramdisk_high (struct lmb *lmb, ulong rd_data, ulong rd_len,
+int boot_ramdisk_high (struct lmb *lmb, ulong rd_data, ulong rd_len,
 		  ulong *initrd_start, ulong *initrd_end)
 {
 	char	*s;
@@ -779,12 +785,12 @@ int ramdisk_high (struct lmb *lmb, ulong rd_data, ulong rd_len,
 			lmb_reserve(lmb, rd_data, rd_len);
 		} else {
 			if (initrd_high)
-				*initrd_start = lmb_alloc_base(lmb, rd_len, 0x1000, initrd_high);
+				*initrd_start = lmb_alloc_base (lmb, rd_len, 0x1000, initrd_high);
 			else
-				*initrd_start = lmb_alloc(lmb, rd_len, 0x1000);
+				*initrd_start = lmb_alloc (lmb, rd_len, 0x1000);
 
 			if (*initrd_start == 0) {
-				puts("ramdisk - allocation error\n");
+				puts ("ramdisk - allocation error\n");
 				goto error;
 			}
 			show_boot_progress (12);
@@ -793,7 +799,7 @@ int ramdisk_high (struct lmb *lmb, ulong rd_data, ulong rd_len,
 			printf ("   Loading Ramdisk to %08lx, end %08lx ... ",
 					*initrd_start, *initrd_end);
 
-			memmove_wd((void *)*initrd_start,
+			memmove_wd ((void *)*initrd_start,
 					(void *)rd_data, rd_len, CHUNKSZ);
 
 			puts ("OK\n");
@@ -804,6 +810,7 @@ int ramdisk_high (struct lmb *lmb, ulong rd_data, ulong rd_len,
 	}
 	debug ("   ramdisk load start = 0x%08lx, ramdisk load end = 0x%08lx\n",
 			*initrd_start, *initrd_end);
+
 	return 0;
 
 error:
@@ -811,14 +818,14 @@ error:
 }
 
 /**
- * get_boot_cmdline - allocate and initialize kernel 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
  * @bootmap_base: ulong variable, holds offset in physical memory to
  * base of bootmap
  *
- * get_boot_cmdline() allocates space for kernel command line below
+ * boot_get_cmdline() allocates space for kernel command line below
  * BOOTMAPSZ + bootmap_base address. If "bootargs" U-boot environemnt
  * variable is present its contents is copied to allocated kernel
  * command line.
@@ -827,7 +834,7 @@ error:
  *      0 - success
  *     -1 - failure
  */
-int get_boot_cmdline (struct lmb *lmb, ulong *cmd_start, ulong *cmd_end,
+int boot_get_cmdline (struct lmb *lmb, ulong *cmd_start, ulong *cmd_end,
 			ulong bootmap_base)
 {
 	char *cmdline;
@@ -853,13 +860,13 @@ int get_boot_cmdline (struct lmb *lmb, ulong *cmd_start, ulong *cmd_end,
 }
 
 /**
- * get_boot_kbd - allocate and initialize kernel copy of board info
+ * 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
  * @bootmap_base: ulong variable, holds offset in physical memory to
  * base of bootmap
  *
- * get_boot_kbd() allocates space for kernel copy of board info data below
+ * boot_get_kbd() allocates space for kernel copy of board info data below
  * BOOTMAPSZ + bootmap_base address and kernel board info is initialized with
  * the current u-boot board info data.
  *
@@ -867,7 +874,7 @@ int get_boot_cmdline (struct lmb *lmb, ulong *cmd_start, ulong *cmd_end,
  *      0 - success
  *     -1 - failure
  */
-int get_boot_kbd (struct lmb *lmb, bd_t **kbd, ulong bootmap_base)
+int boot_get_kbd (struct lmb *lmb, bd_t **kbd, ulong bootmap_base)
 {
 	*kbd = (bd_t *)lmb_alloc_base(lmb, sizeof(bd_t), 0xf,
 				      CFG_BOOTMAPSZ + bootmap_base);