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, 103 insertions, 0 deletions

diff --git a/tools/ublimage.h b/tools/ublimage.h
new file mode 100644
index 0000000000..c9266890ce
--- /dev/null
+++ b/tools/ublimage.h
@@ -0,0 +1,103 @@
+/*
+ * (C) Copyright 2011
+ * Heiko Schocher, DENX Software Engineering, hs@denx.de.
+ *
+ * Vased on:
+ * (C) Copyright 2009
+ * Stefano Babic, DENX Software Engineering, sbabic@denx.de.
+ *
+ * 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
+ */
+
+#ifndef _UBLIMAGE_H_
+#define _UBLIMAGE_H_
+
+#include <config.h>
+
+#if !defined(CONFIG_SYS_UBL_BLOCK)
+#define CONFIG_SYS_UBL_BLOCK 512
+#endif
+
+enum ublimage_cmd {
+	CMD_INVALID,
+	CMD_BOOT_MODE,
+	CMD_ENTRY,
+	CMD_PAGE,
+	CMD_ST_BLOCK,
+	CMD_ST_PAGE,
+	CMD_LD_ADDR
+};
+
+enum ublimage_fld_types {
+	CFG_INVALID = -1,
+	CFG_COMMAND,
+	CFG_REG_VALUE
+};
+
+/*
+ * from sprufg5a.pdf Table 110
+ * Used by RBL when doing NAND boot
+ */
+#define UBL_MAGIC_BASE              (0xA1ACED00)
+/* Safe boot mode */
+#define UBL_MAGIC_SAFE              (0x00)
+/* DMA boot mode */
+#define UBL_MAGIC_DMA               (0x11)
+/* I Cache boot mode */
+#define UBL_MAGIC_IC                (0x22)
+/* Fast EMIF boot mode */
+#define UBL_MAGIC_FAST              (0x33)
+/* DMA + ICache boot mode */
+#define UBL_MAGIC_DMA_IC            (0x44)
+/* DMA + ICache + Fast EMIF boot mode */
+#define UBL_MAGIC_DMA_IC_FAST       (0x55)
+
+/* Define max UBL image size */
+#define UBL_IMAGE_SIZE              (0x00003800u)
+
+/* from sprufg5a.pdf Table 109 */
+struct ubl_header {
+	uint32_t	magic;	/* Magic Number, see UBL_* defines */
+	uint32_t	entry;	/* entry point address for bootloader */
+	uint32_t	pages;	/* number of pages (size of bootloader) */
+	uint32_t	block;	/*
+				 * blocknumber where user bootloader is
+				 * present
+				 */
+	uint32_t	page;	/*
+				 * page number where user bootloader is
+				 * present.
+				 */
+	uint32_t	pll_m;	/*
+				 * PLL setting -Multiplier (only valid if
+				 * Magic Number indicates PLL enable).
+				 */
+	uint32_t	pll_n;	/*
+				 * PLL setting -Divider (only valid if
+				 * Magic Number indicates PLL enable).
+				 */
+	uint32_t	emif;	/*
+				 * fast EMIF setting (only valid if
+				 * Magic Number indicates fast EMIF boot).
+				 */
+	/* to fit in one nand block */
+	unsigned char	res[CONFIG_SYS_UBL_BLOCK - 8 * 4];
+};
+
+#endif /* _UBLIMAGE_H_ */