[U-Boot] [PATCH] am33xx: Enable D-CACHE on !CONFIG_SYS_DCACHE_OFF

[Sricharan R <r.sricharan@ti.com>]

Hi Tom,

On Friday 23 August 2013 09:56 PM, Tom Rini wrote:
> Test on Beaglebone white over cpsw, usb ether and SD card (read and
> write), performance increased, crc32 of data matches.
>
> Signed-off-by: Tom Rini <trini@ti.com>
> ---
>  arch/arm/cpu/armv7/am33xx/board.c |    8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/arch/arm/cpu/armv7/am33xx/board.c b/arch/arm/cpu/armv7/am33xx/board.c
> index 2ea3d69..c261af5 100644
> --- a/arch/arm/cpu/armv7/am33xx/board.c
> +++ b/arch/arm/cpu/armv7/am33xx/board.c
> @@ -225,3 +225,11 @@ void s_init(void)
>  	sdram_init();
>  #endif
>  }
> +
> +#ifndef CONFIG_SYS_DCACHE_OFF
> +void enable_caches(void)
> +{
> +	/* Enable D-cache. I-cache is already enabled in start.S */
> +	dcache_enable();
> +}
> +#endif /* !CONFIG_SYS_DCACHE_OFF */
 This is fine. Do we have secure devices here ?

 If so, we should take care of setting the domains permissions for
 avoiding prefetch aborts. As it was done for OMAP using
 arm_init_domains. So that function and the above should be executed on
 am33xx as well.

 Thanks to Lokesh for reminding this.

Regards,
 Sricharan