linux-kernel - Re: [PATCH v2 1/3] arm: omap: hwmod: add a new addr space in otg for writing to control module

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Date:	Tue, 11 Sep 2012 11:13:01 +0200
From:	Benoit Cousson <b-cousson@...com>
To:	Kishon Vijay Abraham I <kishon@...com>
CC:	<balbi@...com>, <grant.likely@...retlab.ca>,
	<rob.herring@...xeda.com>, <rob@...dley.net>,
	<linux@....linux.org.uk>, <gregkh@...uxfoundation.org>,
	<rnayak@...com>, <tony@...mide.com>,
	<devicetree-discuss@...ts.ozlabs.org>, <linux-doc@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-omap@...r.kernel.org>, <linux-usb@...r.kernel.org>
Subject: Re: [PATCH v2 1/3] arm: omap: hwmod: add a new addr space in otg
 for writing to control module

On 09/11/2012 11:09 AM, Kishon Vijay Abraham I wrote:
> The mailbox register for usb otg in omap is present in control module.
> On detection of any events VBUS or ID, this register should be written
> to send the notification to musb core.
> 
> Till we have a separate control module driver to write to control module,
> omap2430 will handle the register writes to control module by itself. So
> a new address space to represent this control module register is added
> to usb_otg_hs.
> 
> Signed-off-by: Kishon Vijay Abraham I <kishon@...com>

Acked-by: Benoit Cousson <b-cousson@...com>

> ---
>  arch/arm/mach-omap2/omap_hwmod_44xx_data.c |    6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
> index 242aee4..3c19120 100644
> --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
> +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
> @@ -5890,6 +5890,12 @@ static struct omap_hwmod_addr_space omap44xx_usb_otg_hs_addrs[] = {
>  		.pa_end		= 0x4a0ab003,
>  		.flags		= ADDR_TYPE_RT
>  	},
> +	{
> +		/* XXX: Remove this once control module driver is in place */
> +		.pa_start	= 0x4a00233c,
> +		.pa_end		= 0x4a00233f,
> +		.flags		= ADDR_TYPE_RT
> +	},
>  	{ }
>  };
>  
> 

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