linux-kernel - Re: [PATCH V3 7/7] ARM: DRA: Enable Crossbar IP support for DRA7XX

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Date:	Tue, 12 Nov 2013 11:11:04 +0530
From:	Rajendra Nayak <rnayak@...com>
To:	Sricharan R <r.sricharan@...com>
CC:	<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-doc@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-omap@...r.kernel.org>, <linus.walleij@...aro.org>,
	<linux@....linux.org.uk>, <tony@...mide.com>,
	<marc.zyngier@....com>, <grant.likely@...aro.org>,
	<mark.rutland@....com>, <robherring2@...il.com>,
	<tglx@...utronix.de>, <santosh.shilimkar@...com>,
	<galak@...eaurora.org>
Subject: Re: [PATCH V3 7/7] ARM: DRA: Enable Crossbar IP support for DRA7XX

On Tuesday 05 November 2013 06:44 PM, Sricharan R wrote:
> Enable the crossbar IP support for DRA7xx soc.
> 
> Cc: Santosh Shilimkar <santosh.shilimkar@...com>
> Cc: Rajendra Nayak <rnayak@...com>
> Cc: Tony Lindgren <tony@...mide.com>
> Signed-off-by: Sricharan R <r.sricharan@...com>
> ---
>  arch/arm/mach-omap2/Kconfig        |    1 +
>  arch/arm/mach-omap2/omap4-common.c |    4 ++++
>  2 files changed, 5 insertions(+)
> 
> diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
> index b5fb5f7..2086c65 100644
> --- a/arch/arm/mach-omap2/Kconfig
> +++ b/arch/arm/mach-omap2/Kconfig
> @@ -141,6 +141,7 @@ config SOC_DRA7XX
>  	select ARM_GIC
>  	select HAVE_SMP
>  	select COMMON_CLK
> +	select IRQ_CROSSBAR
>  
>  comment "OMAP Core Type"
>  	depends on ARCH_OMAP2
> diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
> index 5791143..274cbfa 100644
> --- a/arch/arm/mach-omap2/omap4-common.c
> +++ b/arch/arm/mach-omap2/omap4-common.c
> @@ -22,6 +22,7 @@
>  #include <linux/of_platform.h>
>  #include <linux/export.h>
>  #include <linux/irqchip/arm-gic.h>
> +#include <linux/irqchip/irq-crossbar.h>
>  #include <linux/of_address.h>
>  #include <linux/reboot.h>
>  
> @@ -282,9 +283,12 @@ void __init omap_gic_of_init(void)
>  
>  skip_errata_init:
>  	omap_wakeupgen_init();
> +	if (soc_is_dra7xx())
> +		crossbar_init();

Its good if this is called irqcrossbar_init() to avoid confusion
with the dma crossbar which also exists in dra7 devices.

>  	irqchip_init();
>  }
>  
> +
>  #if defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
>  static int omap4_twl6030_hsmmc_late_init(struct device *dev)
>  {
> 

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