mkimage: add UBL header support for booting davinci cpus

creating an u-boot.ubl file, which contains the UBL Header
needed for booting from NAND with the RBL from TI. For more
information read doc/README.ublimage.

Signed-off-by: Heiko Schocher <hs@denx.de>

1 files changed, 275 insertions, 0 deletions

diff --git a/tools/ublimage.c b/tools/ublimage.c
new file mode 100644
index 0000000..9987462
--- /dev/null
+++ b/tools/ublimage.c
@@ -0,0 +1,275 @@
+/*
+ * (C) Copyright 2011
+ * Heiko Schocher, DENX Software Engineering, hs@denx.de.
+ *
+ * Based on:
+ * (C) Copyright 2009
+ * Stefano Babic, DENX Software Engineering, sbabic@denx.de.
+ *
+ * (C) Copyright 2008
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/* Required to obtain the getline prototype from stdio.h */
+#define _GNU_SOURCE
+
+#include "mkimage.h"
+#include <image.h>
+#include "ublimage.h"
+
+/*
+ * Supported commands for configuration file
+ */
+static table_entry_t ublimage_cmds[] = {
+	{CMD_BOOT_MODE,	"MODE",		"UBL special modes", },
+	{CMD_ENTRY,	"ENTRY",	"Entry point addr for bootloader", },
+	{CMD_PAGE,	"PAGES",
+		"number of pages (size of bootloader)", },
+	{CMD_ST_BLOCK,	"START_BLOCK",
+		"block number where bootloader is present", },
+	{CMD_ST_PAGE,	"START_PAGE",
+		"page number where bootloader is present", },
+	{CMD_LD_ADDR,	"LD_ADDR",
+		"load addr", },
+	{-1,		"",		"", },
+};
+
+/*
+ * Supported Boot options for configuration file
+ * this is needed to set the correct flash offset
+ */
+static table_entry_t ublimage_bootops[] = {
+	{UBL_MAGIC_SAFE,	"safe",	"Safe boot mode",	},
+	{-1,			"",	"Invalid",		},
+};
+
+static struct ubl_header ublimage_header;
+
+static uint32_t get_cfg_value(char *token, char *name,  int linenr)
+{
+	char *endptr;
+	uint32_t value;
+
+	errno = 0;
+	value = strtoul(token, &endptr, 16);
+	if (errno || (token == endptr)) {
+		fprintf(stderr, "Error: %s[%d] - Invalid hex data(%s)\n",
+			name,  linenr, token);
+		exit(EXIT_FAILURE);
+	}
+	return value;
+}
+
+static void print_hdr(struct ubl_header *ubl_hdr)
+{
+	printf("Image Type : Davinci UBL Boot Image\n");
+	printf("UBL magic  : %08x\n", ubl_hdr->magic);
+	printf("Entry Point: %08x\n", ubl_hdr->entry);
+	printf("nr of pages: %08x\n", ubl_hdr->pages);
+	printf("start block: %08x\n", ubl_hdr->block);
+	printf("start page : %08x\n", ubl_hdr->page);
+}
+
+static void parse_cfg_cmd(struct ubl_header *ublhdr, int32_t cmd, char *token,
+				char *name, int lineno, int fld, int dcd_len)
+{
+	static int cmd_ver_first = ~0;
+
+	switch (cmd) {
+	case CMD_BOOT_MODE:
+		ublhdr->magic = get_table_entry_id(ublimage_bootops,
+					"ublimage special boot mode", token);
+		if (ublhdr->magic == -1) {
+			fprintf(stderr, "Error: %s[%d] -Invalid boot mode"
+				"(%s)\n", name, lineno, token);
+			exit(EXIT_FAILURE);
+		}
+		ublhdr->magic += UBL_MAGIC_BASE;
+		if (unlikely(cmd_ver_first != 1))
+			cmd_ver_first = 0;
+		break;
+	case CMD_ENTRY:
+		ublhdr->entry = get_cfg_value(token, name, lineno);
+		break;
+	case CMD_PAGE:
+		ublhdr->pages = get_cfg_value(token, name, lineno);
+		break;
+	case CMD_ST_BLOCK:
+		ublhdr->block = get_cfg_value(token, name, lineno);
+		break;
+	case CMD_ST_PAGE:
+		ublhdr->page = get_cfg_value(token, name, lineno);
+		break;
+	case CMD_LD_ADDR:
+		ublhdr->pll_m = get_cfg_value(token, name, lineno);
+		break;
+	}
+}
+
+static void parse_cfg_fld(struct ubl_header *ublhdr, int32_t *cmd,
+		char *token, char *name, int lineno, int fld, int *dcd_len)
+{
+
+	switch (fld) {
+	case CFG_COMMAND:
+		*cmd = get_table_entry_id(ublimage_cmds,
+			"ublimage commands", token);
+		if (*cmd < 0) {
+			fprintf(stderr, "Error: %s[%d] - Invalid command"
+			"(%s)\n", name, lineno, token);
+			exit(EXIT_FAILURE);
+		}
+		break;
+	case CFG_REG_VALUE:
+		parse_cfg_cmd(ublhdr, *cmd, token, name, lineno, fld, *dcd_len);
+		break;
+	default:
+		break;
+	}
+}
+static uint32_t parse_cfg_file(struct ubl_header *ublhdr, char *name)
+{
+	FILE *fd = NULL;
+	char *line = NULL;
+	char *token, *saveptr1, *saveptr2;
+	int lineno = 0;
+	int	i;
+	char *ptr = (char *)ublhdr;
+	int fld;
+	size_t len;
+	int dcd_len = 0;
+	int32_t cmd;
+	int ublhdrlen = sizeof(struct ubl_header);
+
+	fd = fopen(name, "r");
+	if (fd == 0) {
+		fprintf(stderr, "Error: %s - Can't open DCD file\n", name);
+		exit(EXIT_FAILURE);
+	}
+
+	/* Fill header with 0xff */
+	for (i = 0; i < ublhdrlen; i++) {
+		*ptr = 0xff;
+		ptr++;
+	}
+
+	/*
+	 * Very simple parsing, line starting with # are comments
+	 * and are dropped
+	 */
+	while ((getline(&line, &len, fd)) > 0) {
+		lineno++;
+
+		token = strtok_r(line, "\r\n", &saveptr1);
+		if (token == NULL)
+			continue;
+
+		/* Check inside the single line */
+		for (fld = CFG_COMMAND, cmd = CMD_INVALID,
+				line = token; ; line = NULL, fld++) {
+			token = strtok_r(line, " \t", &saveptr2);
+			if (token == NULL)
+				break;
+
+			/* Drop all text starting with '#' as comments */
+			if (token[0] == '#')
+				break;
+
+			parse_cfg_fld(ublhdr, &cmd, token, name,
+					lineno, fld, &dcd_len);
+		}
+	}
+	fclose(fd);
+
+	return dcd_len;
+}
+
+static int ublimage_check_image_types(uint8_t type)
+{
+	if (type == IH_TYPE_UBLIMAGE)
+		return EXIT_SUCCESS;
+	else
+		return EXIT_FAILURE;
+}
+
+static int ublimage_verify_header(unsigned char *ptr, int image_size,
+			struct mkimage_params *params)
+{
+	return 0;
+}
+
+static void ublimage_print_header(const void *ptr)
+{
+	struct ubl_header *ubl_hdr = (struct ubl_header *) ptr;
+
+	print_hdr(ubl_hdr);
+}
+
+static void ublimage_set_header(void *ptr, struct stat *sbuf, int ifd,
+				struct mkimage_params *params)
+{
+	struct ubl_header *ublhdr = (struct ubl_header *)ptr;
+
+	/* Parse configuration file */
+	parse_cfg_file(ublhdr, params->imagename);
+}
+
+int ublimage_check_params(struct mkimage_params *params)
+{
+	if (!params)
+		return CFG_INVALID;
+	if (!strlen(params->imagename)) {
+		fprintf(stderr, "Error: %s - Configuration file not"
+			"specified, it is needed for ublimage generation\n",
+			params->cmdname);
+		return CFG_INVALID;
+	}
+	/*
+	 * Check parameters:
+	 * XIP is not allowed and verify that incompatible
+	 * parameters are not sent at the same time
+	 * For example, if list is required a data image must not be provided
+	 */
+	return	(params->dflag && (params->fflag || params->lflag)) ||
+		(params->fflag && (params->dflag || params->lflag)) ||
+		(params->lflag && (params->dflag || params->fflag)) ||
+		(params->xflag) || !(strlen(params->imagename));
+}
+
+/*
+ * ublimage parameters
+ */
+static struct image_type_params ublimage_params = {
+	.name		= "Davinci UBL boot support",
+	.header_size	= sizeof(struct ubl_header),
+	.hdr		= (void *)&ublimage_header,
+	.check_image_type = ublimage_check_image_types,
+	.verify_header	= ublimage_verify_header,
+	.print_header	= ublimage_print_header,
+	.set_header	= ublimage_set_header,
+	.check_params	= ublimage_check_params,
+};
+
+void init_ubl_image_type(void)
+{
+	mkimage_register(&ublimage_params);
+}