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tools: arm: imx: Implement BOOT_OFFSET command for imximage

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Implement BOOT_OFFSET command for imximage. This command is parallel
to current BOOT_FROM command, but allows more flexibility in configuring
arbitrary image header offset. Also add an imximage.cfg with default
offset values into arm/arch/imx-common/ so the board-specific imximage.cfg
can include this file to avoid magic constants.

The syntax of BOOT_OFFSET command is "BOOT_OFFSET <u32 offset>".

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Cc: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Tom Rini <trini@ti.com>
Acked-by: Stefano Babic <sbabic@denx.de>
Acked-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Marek Vasut 2013-04-25 10:16:02 +00:00 committed by Stefano Babic
parent 7e2173cf82
commit 6cb83829a0
4 changed files with 60 additions and 0 deletions
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30
arch/arm/include/asm/imx-common/imximage.cfg Normal file
View file

@ -0,0 +1,30 @@
/*
* i.MX image header offset values
* Copyright (C) 2013 Marek Vasut <marex@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.
*/
/*
* NOTE: This file must be kept in sync with tools/imximage.h because
* tools/imximage.c can not cross-include headers from arch/arm/
* and vice-versa.
*/
#ifndef __ASM_IMX_COMMON_IMXIMAGE_CFG__
#define __ASM_IMX_COMMON_IMXIMAGE_CFG__
/* Standard image header offset for NAND, SATA, SD, SPI flash. */
#define FLASH_OFFSET_STANDARD 0x400
/* Specific image header offset for booting from OneNAND. */
#define FLASH_OFFSET_ONENAND 0x100
/* Specific image header offset for booting from memory-mapped NOR. */
#define FLASH_OFFSET_NOR 0x1000
#endif /* __ASM_IMX_COMMON_IMXIMAGE_CFG__ */

18
doc/README.imximage
View file

@ -65,9 +65,27 @@ Configuration command line syntax:
This command need appear the fist before
other valid commands in configuration file.
BOOT_OFFSET value
This command is parallel to BOOT_FROM and
is preferred over BOOT_FROM.
value: Offset of the image header, this
value shall be set to one of the
values found in the file:
arch/arm/include/asm/\
imx-common/imximage.cfg
Example:
BOOT_OFFSET FLASH_OFFSET_STANDARD
BOOT_FROM nand/spi/sd/onenand/nor/sata
This command is parallel to BOOT_OFFSET and
is to be deprecated in favor of BOOT_OFFSET.
Example:
BOOT_FROM spi
DATA type address value
type: word=4, halfword=2, byte=1

6
tools/imximage.c
View file

@ -37,6 +37,7 @@
*/
static table_entry_t imximage_cmds[] = {
{CMD_BOOT_FROM, "BOOT_FROM", "boot command", },
{CMD_BOOT_OFFSET, "BOOT_OFFSET", "Boot offset", },
{CMD_DATA, "DATA", "Reg Write Data", },
{CMD_IMAGE_VERSION, "IMAGE_VERSION", "image version", },
{-1, "", "", },
@ -352,6 +353,11 @@ static void parse_cfg_cmd(struct imx_header *imxhdr, int32_t cmd, char *token,
if (unlikely(cmd_ver_first != 1))
cmd_ver_first = 0;
break;
case CMD_BOOT_OFFSET:
imxhdr->flash_offset = get_cfg_value(token, name, lineno);
if (unlikely(cmd_ver_first != 1))
cmd_ver_first = 0;
break;
case CMD_DATA:
value = get_cfg_value(token, name, lineno);
(*set_dcd_val)(imxhdr, name, lineno, fld, value, dcd_len);

6
tools/imximage.h
View file

@ -31,6 +31,11 @@
#define HEADER_OFFSET 0x400
/*
* NOTE: This file must be kept in sync with arch/arm/include/asm/\
* imx-common/imximage.cfg because tools/imximage.c can not
* cross-include headers from arch/arm/ and vice-versa.
*/
#define CMD_DATA_STR "DATA"
#define FLASH_OFFSET_UNDEFINED 0xFFFFFFFF
#define FLASH_OFFSET_STANDARD 0x400
@ -52,6 +57,7 @@ enum imximage_cmd {
CMD_INVALID,
CMD_IMAGE_VERSION,
CMD_BOOT_FROM,
CMD_BOOT_OFFSET,
CMD_DATA
};