linux-kernel - Re: [PATCH 2/2] ARM: msm: Remove PLAT_PHYS

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Date:	Thu, 28 Jul 2011 16:49:18 -0400 (EDT)
From:	Nicolas Pitre <nicolas.pitre@...aro.org>
To:	David Brown <davidb@...eaurora.org>
cc:	Russell King <linux@....linux.org.uk>,
	Daniel Walker <dwalker@...o99.com>,
	Bryan Huntsman <bryanh@...eaurora.org>,
	lkml <linux-kernel@...r.kernel.org>,
	linux-arm-msm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 2/2] ARM: msm: Remove PLAT_PHYS_OFFSETS from MSM
 targets

On Thu, 28 Jul 2011, David Brown wrote:

> Now that MSM can boot with the phys offset patching, eliminate the
> definitions of the phys offsets, and instead select
> ARM_PATCH_PHYS_VIRT.
> 
> Signed-off-by: David Brown <davidb@...eaurora.org>
> 
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index ced9371..3a4d87c 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -618,6 +618,7 @@ config ARCH_MSM
>  	select GENERIC_CLOCKEVENTS
>  	select ARCH_REQUIRE_GPIOLIB
>  	select CLKDEV_LOOKUP
> +	select ARM_PATCH_PHYS_VIRT
>  	help
>  	  Support for Qualcomm MSM/QSD based systems.  This runs on the
>  	  apps processor of the MSM/QSD and depends on a shared memory
> diff --git a/arch/arm/mach-msm/include/mach/memory.h b/arch/arm/mach-msm/include/mach/memory.h
> index 58d5e7e..deed41a 100644
> --- a/arch/arm/mach-msm/include/mach/memory.h
> +++ b/arch/arm/mach-msm/include/mach/memory.h
> @@ -17,19 +17,12 @@
>  #define __ASM_ARCH_MEMORY_H
>  
>  /* physical offset of RAM */
> -#if defined(CONFIG_ARCH_QSD8X50) && defined(CONFIG_MSM_SOC_REV_A)
> -#define PLAT_PHYS_OFFSET		UL(0x00000000)
> -#elif defined(CONFIG_ARCH_QSD8X50)
> -#define PLAT_PHYS_OFFSET		UL(0x20000000)
> -#elif defined(CONFIG_ARCH_MSM7X30)
> -#define PLAT_PHYS_OFFSET		UL(0x00000000)
> -#elif defined(CONFIG_ARCH_MSM8X60)
> -#define PLAT_PHYS_OFFSET		UL(0x40000000)
> -#elif defined(CONFIG_ARCH_MSM8960)
> -#define PLAT_PHYS_OFFSET		UL(0x40000000)
> -#else
> -#define PLAT_PHYS_OFFSET		UL(0x10000000)
> -#endif
> +#define QSD8X50A_PHYS_OFFSET		UL(0x00000000)
> +#define QSD8X50_PHYS_OFFSET		UL(0x20000000)
> +#define MSM7X30_PHYS_OFFSET		UL(0x00000000)
> +#define MSM8X60_PHYS_OFFSET		UL(0x10000000)
> +#define MSM8960_PHYS_OFFSET		UL(0x40000000)
> +#define MSM7X01_PHYS_OFFSET		UL(0x10000000)

Do you really need those defines?  If you do I'd suggest moving them 
elsewhere so your mach/memory.h can become empty.


Nicolas
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