[U-Boot] [PATCH] omap3evm: Pass 'mem' argument to linux kernel

[Igor Grinberg]

On 09/27/11 14:21, Sanjeev Premi wrote:
> In absence of this argument, Linux kernel doesn't boot.
> 
> Default value has been set to 128M to ensure that
> Linux kernel boots on older EVMs as well.

This change affects all EVMs, unless they explicitly change/remove
the memsize variable or change the *args variables.

Can't the get_ram_size() function be used for detecting the actual
amount of RAM? and then the memory tag or FDT equivalent
(if there is one) used to pass the memory size information?

> 
> Signed-off-by: Sanjeev Premi <premi at ti.com>
> Cc: Sandeep Paulraj <s-paulraj at ti.com>
> ---
> 
>  This patch has been created against u-boot-ti/next.
> 
>  include/configs/omap3_evm.h |    3 +++
>  1 files changed, 3 insertions(+), 0 deletions(-)
> 
> diff --git a/include/configs/omap3_evm.h b/include/configs/omap3_evm.h
> index 7af30c2..ea51216 100644
> --- a/include/configs/omap3_evm.h
> +++ b/include/configs/omap3_evm.h
> @@ -200,11 +200,14 @@
>  	"loadaddr=0x82000000\0" \
>  	"usbtty=cdc_acm\0" \
>  	"mmcdev=0\0" \
> +	"memsize=128M\0" \
>  	"console=ttyO0,115200n8\0" \
>  	"mmcargs=setenv bootargs console=${console} " \
> +		"mem=${memsize}\0 " \
>  		"root=/dev/mmcblk0p2 rw " \
>  		"rootfstype=ext3 rootwait\0" \
>  	"nandargs=setenv bootargs console=${console} " \
> +		"mem=${memsize}\0 " \
>  		"root=/dev/mtdblock4 rw " \
>  		"rootfstype=jffs2\0" \
>  	"loadbootscript=fatload mmc ${mmcdev} ${loadaddr} boot.scr\0" \

-- 
Regards,
Igor.