Subject: [PATCH] ARM: at91: debug: fix non MMU debug

From: [email-masked] (Nicolas Ferre)
Date: Thu, 5 Mar 2015 10:58:27 +0100

Le 04/03/2015 15:41, Alexandre Belloni a ?crit :
> Linux may be used without MMU on atmel SoCs, fix debug in this configuration.
> 
> Signed-off-by: Alexandre Belloni <[email-masked]>

Acked-by: Nicolas Ferre <[email-masked]>
and stacked on top of at91-4.0-fixes.

Thanks!

> ---
>  arch/arm/include/debug/at91.S | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/include/debug/at91.S b/arch/arm/include/debug/at91.S
> index 80a6501b4d50..c3c45e628e33 100644
> --- a/arch/arm/include/debug/at91.S
> +++ b/arch/arm/include/debug/at91.S
> @@ -18,8 +18,11 @@
>  #define AT91_DBGU 0xfc00c000 /* SAMA5D4_BASE_USART3 */
>  #endif
>  
> -/* Keep in sync with mach-at91/include/mach/hardware.h */
> +#ifdef CONFIG_MMU
>  #define AT91_IO_P2V(x) ((x) - 0x01000000)
> +#else
> +#define AT91_IO_P2V(x) (x)
> +#endif
>  
>  #define AT91_DBGU_SR		(0x14)	/* Status Register */
>  #define AT91_DBGU_THR		(0x1c)	/* Transmitter Holding Register */
> 

-- 
Nicolas Ferre