Re: [ptxdist] [PATCH] u-boot: generate default environment image

[Denis OSTERLAND <denis.osterland@diehl.com>]

Hi,

the get_default_envs.sh script generates a text file
which represents the compiled in default environment.
It would be handy to specify the text file, to have a environment
image for production, different from default.

I think about:
Kconfig:
config U_BOOT_ENV_IMAGE
	bool
	...
if U_BOOT_ENV_IMAGE
config U_BOOT_ENV_IMAGE_SOURCE
	string ""
	help
	  Text file describing the environment. The file should have
	  lines of the form var=value, one per line. Blank lines and
	  lines starting with a # are ignored..
	  Leave empty to generate image from compiled-in env.

	...
I am fine with U_BOOT_DEFAULT_ENV_IMAGE_SIZE and U_BOOT_DEFAULT_ENV_IMAGE_REDUNDANT.

And in make file:
	$(U_BOOT_MAKE_ENV) $(if $(call remove_quotes,$(PTXCONF_U_BOOT_ENV_IMAGE_SOURCE)), \
		cat "$(shell ptxd_get_alternative config/images $(PTXCONF_U_BOOT_ENV_IMAGE_SOURCE) && echo "$$ptxd_reply" || ptxd_bailout "could not find u-boot env file")", \
		$(U_BOOT_DIR)/scripts/get_default_envs.sh) | \
		mkenvimage -p 0x0 \

Not sure if config/images the the right place and layout should be better.

BTW ptxdist will search SYSROOT_HOST for mkenvimage, so there is no need to be verbose.

Regards Denis

Am Donnerstag, den 31.10.2019, 18:28 +0100 schrieb Bruno Thomsen:
> Can be used during manufacturing to avoid bootloader
> console usage and speed up first boot.
> 
> Signed-off-by: Bruno Thomsen <bruno.thomsen@gmail.com>
> ---
>  platforms/u-boot.in | 28 ++++++++++++++++++++++++++++
>  rules/u-boot.make   | 11 +++++++++++
>  2 files changed, 39 insertions(+)
> 
> diff --git a/platforms/u-boot.in b/platforms/u-boot.in
> index 9bac4a758..d9195d7cd 100644
> --- a/platforms/u-boot.in
> +++ b/platforms/u-boot.in
> @@ -2,6 +2,7 @@
>  
>  menuconfig U_BOOT
>  	select BOOTLOADER
> +	select HOST_U_BOOT_TOOLS if U_BOOT_DEFAULT_ENV_IMAGE
>  	prompt "U-Boot                        "
>  	bool
>  
> @@ -71,6 +72,33 @@ config U_BOOT_CONFIG
>  
>  endif
>  
> +config U_BOOT_DEFAULT_ENV_IMAGE
> +	prompt "Generate U-Boot default environment image"
> +	bool
> +	help
> +	  Use U-Boot's mkenvimage to compile a U-Boot default environment
> +	  image for use in device manufacturing.
> +
> +if U_BOOT_DEFAULT_ENV_IMAGE
> +
> +config U_BOOT_DEFAULT_ENV_IMAGE_SIZE
> +	prompt "Default environment image size"
> +	string
> +	default "0x2000"
> +	help
> +	  Enter the U-Boot environment size for generation of manufacturing
> +	  image. Size can be prefixed with 0x for hexadecimal values.
> +	  Must match size defined in target config and "/etc/fw_env.config".
> +
> +config U_BOOT_DEFAULT_ENV_IMAGE_REDUNDANT
> +	prompt "Default environment image with redundant copy"
> +	bool
> +	help
> +	  Use to generate a redundant environment in the default image.
> +	  Must match target config and "/etc/fw_env.config".
> +
> +endif
> +
>  config U_BOOT_BOOT_SCRIPT
>  	prompt "Compile U-Boot boot script"
>  	bool
> diff --git a/rules/u-boot.make b/rules/u-boot.make
> index 8f9290ea7..b6e65a95a 100644
> --- a/rules/u-boot.make
> +++ b/rules/u-boot.make
> @@ -94,6 +94,13 @@ ifdef PTXCONF_U_BOOT_BOOT_SCRIPT
>  	@$(U_BOOT_DIR)/tools/mkimage -T script -C none \
>  		-d $(U_BOOT_BOOT_SCRIPT_TXT) \
>  		$(U_BOOT_DIR)/boot.scr.uimg
> +endif
> +ifdef PTXCONF_U_BOOT_DEFAULT_ENV_IMAGE
> +	$(U_BOOT_MAKE_ENV) $(U_BOOT_DIR)/scripts/get_default_envs.sh | \
> +		$(PTXDIST_SYSROOT_HOST)/bin/mkenvimage -p 0x0 \
> +		$(call ptx/ifdef,PTXCONF_U_BOOT_DEFAULT_ENV_IMAGE_REDUNDANT,-r,) \
> +		-s $(PTXCONF_U_BOOT_DEFAULT_ENV_IMAGE_SIZE) \
> +		-o $(U_BOOT_DIR)/u-boot-env.img -
>  endif
>  	@$(call touch)
>  
> @@ -141,6 +148,10 @@ ifdef PTXCONF_U_BOOT_INSTALL_U_BOOT_WITH_SPL_PBL
>  	@install -v -D -m644 $(U_BOOT_DIR)/u-boot-with-spl-pbl.bin \
>  		$(IMAGEDIR)/u-boot-with-spl-pbl.bin
>  endif
> +ifdef PTXCONF_U_BOOT_DEFAULT_ENV_IMAGE
> +	@install -v -D -m644 $(U_BOOT_DIR)/u-boot-env.img \
> +		$(IMAGEDIR)/u-boot-env.img
> +endif
>  
>  ifdef PTXCONF_U_BOOT_BOOT_SCRIPT
>  	@$(call install_init, u-boot)


Diehl Connectivity Solutions GmbH
Geschäftsführung: Horst Leonberger
Sitz der Gesellschaft: Nürnberg - Registergericht: Amtsgericht
Nürnberg: HRB 32315
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