[PATCH 1/2] ARM: use arm_system_rev from environment

[Jean-Christophe PLAGNIOL-VILLARD]

On 16:58 Thu 13 Oct     , Sascha Hauer wrote:
> Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
> ---
>  arch/arm/lib/armlinux.c |   11 +++++++++++
>  1 files changed, 11 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/lib/armlinux.c b/arch/arm/lib/armlinux.c
> index e3a74f4..f636f12 100644
> --- a/arch/arm/lib/armlinux.c
> +++ b/arch/arm/lib/armlinux.c
> @@ -198,7 +198,14 @@ void armlinux_set_architecture(int architecture)
>  
>  void armlinux_set_revision(unsigned int rev)
>  {
> +	char *revstr = asprintf("%d", rev);
> +
>  	system_rev = rev;
> +
> +	setenv("arm_system_rev", revstr);
> +	export("arm_system_rev");
> +
> +	kfree(revstr);
>  }
>  
>  void armlinux_set_serial(u64 serial)
> @@ -209,6 +216,10 @@ void armlinux_set_serial(u64 serial)
>  void start_linux(void *adr, int swap, struct image_data *data)
>  {
>  	void (*kernel)(int zero, int arch, void *params) = adr;
> +	const char *revstr = getenv("arm_system_rev");
> +
> +	if (revstr)
> +		system_rev = simple_strtoul(revstr, NULL, 0);
we need to use boot getopt  as done on bootm

Best Regards,
J.