From: Nicolas Ferre <nicolas.ferre@atmel.com>
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>,
"Boris Brezillon" <boris.brezillon@free-electrons.com>
Subject: Re: [PATCH] ARM: at91: debug: fix non MMU debug
Date: Thu, 5 Mar 2015 10:58:27 +0100 [thread overview]
Message-ID: <54F828C3.6090901@atmel.com> (raw)
In-Reply-To: <1425480087-31097-1-git-send-email-alexandre.belloni@free-electrons.com>
Le 04/03/2015 15:41, Alexandre Belloni a écrit :
> 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
prev parent reply other threads:[~2015-03-05 9:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-04 14:41 [PATCH] ARM: at91: debug: fix non MMU debug Alexandre Belloni
2015-03-05 9:58 ` Nicolas Ferre [this message]
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