* [PATCH] ARM: at91: debug: fix non MMU debug
@ 2015-03-04 14:41 Alexandre Belloni
2015-03-05 9:58 ` Nicolas Ferre
0 siblings, 1 reply; 2+ messages in thread
From: Alexandre Belloni @ 2015-03-04 14:41 UTC (permalink / raw)
To: linux-arm-kernel
Linux may be used without MMU on atmel SoCs, fix debug in this configuration.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons•com>
---
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 */
--
2.1.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH] ARM: at91: debug: fix non MMU debug
2015-03-04 14:41 [PATCH] ARM: at91: debug: fix non MMU debug Alexandre Belloni
@ 2015-03-05 9:58 ` Nicolas Ferre
0 siblings, 0 replies; 2+ messages in thread
From: Nicolas Ferre @ 2015-03-05 9:58 UTC (permalink / raw)
To: linux-arm-kernel
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 <alexandre.belloni@free-electrons•com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel•com>
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
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