linux-kernel - Re: [PATCH v7 10/13] ARM: efm32: use ARM_SINGLE

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Message-ID: <20150519121432.GE24769@pengutronix.de>
Date:	Tue, 19 May 2015 14:14:32 +0200
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	Stefan Agner <stefan@...er.ch>
Cc:	shawn.guo@...aro.org, kernel@...gutronix.de, jason@...edaemon.net,
	marc.zyngier@....com, linux@....linux.org.uk, olof@...om.net,
	arnd@...db.de, daniel.lezcano@...aro.org, tglx@...utronix.de,
	mark.rutland@....com, pawel.moll@....com, robh+dt@...nel.org,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	mcoquelin.stm32@...il.com, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 10/13] ARM: efm32: use ARM_SINGLE_ARMV7M

On Sat, May 16, 2015 at 11:44:22AM +0200, Stefan Agner wrote:
> Use the new config symbol ARM_SINGLE_ARMV7M which groups config
> symbols used by modern ARMv7-M platforms. It also support multiple
> ARMv7-M platforms in one kernel image. However, this only works if
> the combined platforms share the same (main) memory layout.
> 
> Also use generic debug/uncompress.h for all ARMv7-M platforms.
> 
> Signed-off-by: Stefan Agner <stefan@...er.ch>
Acked-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>

I don't have anything in the queu that would conflict with this patch,
so merge it whereever you, Russell and Arnd see fit.

Best regards
Uwe
> ---
>  arch/arm/Kconfig                 | 28 ++++++++++------------------
>  arch/arm/Kconfig.debug           |  2 +-
>  arch/arm/configs/efm32_defconfig |  1 +
>  3 files changed, 12 insertions(+), 19 deletions(-)
> 
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 2361efc..d1c035d 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -411,24 +411,6 @@ config ARCH_EBSA110
>  	  Ethernet interface, two PCMCIA sockets, two serial ports and a
>  	  parallel port.
>  
> -config ARCH_EFM32
> -	bool "Energy Micro efm32"
> -	depends on !MMU
> -	select ARCH_REQUIRE_GPIOLIB
> -	select ARM_NVIC
> -	select AUTO_ZRELADDR
> -	select CLKSRC_OF
> -	select COMMON_CLK
> -	select CPU_V7M
> -	select GENERIC_CLOCKEVENTS
> -	select NO_DMA
> -	select NO_IOPORT_MAP
> -	select SPARSE_IRQ
> -	select USE_OF
> -	help
> -	  Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
> -	  processors.
> -
>  config ARCH_EP93XX
>  	bool "EP93xx-based"
>  	select ARCH_HAS_HOLES_MEMORYMODEL
> @@ -963,6 +945,16 @@ source "arch/arm/mach-w90x900/Kconfig"
>  
>  source "arch/arm/mach-zynq/Kconfig"
>  
> +# ARMv7-M architecture
> +config ARCH_EFM32
> +	bool "Energy Micro efm32"
> +	depends on ARM_SINGLE_ARMV7M
> +	select ARCH_REQUIRE_GPIOLIB
> +	select AUTO_ZRELADDR
> +	help
> +	  Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
> +	  processors.
> +
>  # Definitions to make life easier
>  config ARCH_ACORN
>  	bool
> diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
> index e4441de..5d63c56 100644
> --- a/arch/arm/Kconfig.debug
> +++ b/arch/arm/Kconfig.debug
> @@ -1561,7 +1561,7 @@ config DEBUG_UNCOMPRESS
>  config UNCOMPRESS_INCLUDE
>  	string
>  	default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
> -					PLAT_SAMSUNG || ARCH_EFM32 || \
> +					PLAT_SAMSUNG || ARM_SINGLE_ARMV7M || \
>  					ARCH_SHMOBILE_LEGACY
>  	default "mach/uncompress.h"
>  
> diff --git a/arch/arm/configs/efm32_defconfig b/arch/arm/configs/efm32_defconfig
> index c4c17e3..e969f78 100644
> --- a/arch/arm/configs/efm32_defconfig
> +++ b/arch/arm/configs/efm32_defconfig
> @@ -16,6 +16,7 @@ CONFIG_EMBEDDED=y
>  # CONFIG_IOSCHED_DEADLINE is not set
>  # CONFIG_IOSCHED_CFQ is not set
>  # CONFIG_MMU is not set
> +CONFIG_ARM_SINGLE_ARMV7M=y
>  CONFIG_ARCH_EFM32=y
>  CONFIG_SET_MEM_PARAM=y
>  CONFIG_DRAM_BASE=0x88000000
> -- 
> 2.4.1
> 
> 

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
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