linux-kernel - Re: [PATCH 3/4] ARM: dts: bcm2835: add the bcm2835-sdram-controller to the dt

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Date:	Thu, 12 May 2016 16:56:59 +0200 (CEST)
From:	Stefan Wahren <stefan.wahren@...e.com>
To:	kernel@...tin.sperl.org
Cc:	Lee Jones <lee@...nel.org>, Eric Anholt <eric@...olt.net>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Russell King <linux@....linux.org.uk>,
	Stephen Warren <swarren@...dotorg.org>,
	Mark Rutland <mark.rutland@....com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-rpi-kernel@...ts.infradead.org, devicetree@...r.kernel.org
Subject: Re: [PATCH 3/4] ARM: dts: bcm2835: add the bcm2835-sdram-controller
 to the dt

Hi,

> kernel@...tin.sperl.org hat am 12. Mai 2016 um 14:38 geschrieben:
> 
> 
> From: Martin Sperl <kernel@...tin.sperl.org>
> 
> Add the bcm2835 sdram controller to the device tree.
> 
> Signed-off-by: Martin Sperl <kernel@...tin.sperl.org>
> ---
>  arch/arm/boot/dts/bcm283x.dtsi | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi
> index 8aaf193..9db9d97 100644
> --- a/arch/arm/boot/dts/bcm283x.dtsi
> +++ b/arch/arm/boot/dts/bcm283x.dtsi
> @@ -22,6 +22,12 @@
>  		#address-cells = <1>;
>  		#size-cells = <1>;
>  
> +		memory-controller@...02000 {
> +			compatible = "brcm,bcm2835-sdram";
> +			reg = <0x7e002000 0x58>, <0x7e002800 0x58>;

where do you get these addresses?

According to register documentation [1] the adresses belong to the interrupt
controller.

Maybe 0x7ee00000 is the right address.

[1] - https://github.com/hermanhermitage/videocoreiv/wiki/Register-Documentation

> +			clocks = <&clocks BCM2835_CLOCK_SDRAM>;
> +		};
> +
>  		timer@...03000 {
>  			compatible = "brcm,bcm2835-system-timer";
>  			reg = <0x7e003000 0x1000>;
> -- 
> 2.1.4
> 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

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