[U-Boot] [PATCH 1/2] tools: arm: imx: Implement BOOT_OFFSET command for imximage

[Benoît Thébaudeau]

Hi Marek,

On Thursday, April 25, 2013 10:16:02 PM, Marek Vasut wrote:
> 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 at denx.de>
> Cc: Albert ARIBAUD <albert.u.boot at aribaud.net>
> Cc: Benoît Thébaudeau <benoit.thebaudeau at advansee.com>
> Cc: Fabio Estevam <fabio.estevam at freescale.com>
> Cc: Scott Wood <scottwood at freescale.com>
> Cc: Stefano Babic <sbabic at denx.de>
> Cc: Tom Rini <trini at ti.com>
> ---
>  arch/arm/include/asm/imx-common/imximage.cfg |   30
>  ++++++++++++++++++++++++++
>  doc/README.imximage                          |   18 ++++++++++++++++
>  tools/imximage.c                             |    6 ++++++
>  tools/imximage.h                             |    6 ++++++
>  4 files changed, 60 insertions(+)
>  create mode 100644 arch/arm/include/asm/imx-common/imximage.cfg
> 
> diff --git a/arch/arm/include/asm/imx-common/imximage.cfg
> b/arch/arm/include/asm/imx-common/imximage.cfg
> new file mode 100644
> index 0000000..95daa3d
> --- /dev/null
> +++ b/arch/arm/include/asm/imx-common/imximage.cfg
> @@ -0,0 +1,30 @@
> +/*
> + * i.MX image header offset values
> + * Copyright (C) 2013 Marek Vasut <marex at 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__ */
> diff --git a/doc/README.imximage b/doc/README.imximage
> index 073e3fc..802eb90 100644
> --- a/doc/README.imximage
> +++ b/doc/README.imximage
> @@ -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
> diff --git a/tools/imximage.c b/tools/imximage.c
> index c018562..5e8e470 100644
> --- a/tools/imximage.c
> +++ b/tools/imximage.c
> @@ -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);
> diff --git a/tools/imximage.h b/tools/imximage.h
> index dfd2e9e..99e124a 100644
> --- a/tools/imximage.h
> +++ b/tools/imximage.h
> @@ -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
>  };
>  
> --
> 1.7.10.4

This looks good to me.

Best regards,
Benoît