[PATCH v2] ARM: dts: add AM33XX EDMA support

Benoit Cousson bcousson at baylibre.com
Wed Sep 4 12:31:53 EDT 2013


Hi Joel,

On 31/08/2013 03:19, Joel Fernandes wrote:
> Hi Benoit,
>
> On 08/26/2013 03:36 AM, Benoit Cousson wrote:
>> - minus all the TI emails which are not working anymore :-(
>>
>> I've just sent my previous email too soon...
>>
>> Now the patch is different :-) I'll take that one.
>
> Unfortunately this patch is still missing from your latest pull request:

Indeed, it was supposed to be applied on 3.13 only. It just came too 
late for 3.12.

Regards,
Benoit

> Subject "[GIT PULL] ARM: OMAP: Device Tree for 3.12 take #2"
>    git://git.kernel.org/pub/scm/linux/kernel/git/bcousson/linux-omap-dt.git
> tags/for_3.12/dts_signed  (commit 4843be165c10f9886c87eeb20acf19a3ddec6653)
>
> Below is a scissor patch that cleanly applies on above branch.
>
> Thanks,
>
> -Joel
>
> --->8----
> From: Matt Porter <mporter at ti.com>
> Subject: [PATCH] ARM: dts: add AM33XX EDMA support
>
> Adds AM33XX EDMA support to the am33xx.dtsi as documented in
> Documentation/devicetree/bindings/dma/ti-edma.txt
>
> v2 changes:
> Drop DT entries that are non-hardware-description Joel Fernandes <joelf at ti.com>
> Discussion in [1].
>
> v3 changes: Changed node name from "edma: edma@" to "edma: dma-controller@"
> by Sebastian Andrzej Siewior <bigeasy at linutronix.de>
>
> [1] https://patchwork.kernel.org/patch/2226761/
>
> Signed-off-by: Matt Porter <mporter at ti.com>
> Signed-off-by: Joel A Fernandes <joelagnel at ti.com>
> ---
>   arch/arm/boot/dts/am33xx.dtsi | 12 ++++++++++++
>   1 file changed, 12 insertions(+)
>
> diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
> index 5996d63..f5869ed 100644
> --- a/arch/arm/boot/dts/am33xx.dtsi
> +++ b/arch/arm/boot/dts/am33xx.dtsi
> @@ -101,6 +101,18 @@
>   			reg = <0x48200000 0x1000>;
>   		};
>
> +		edma: dma-controller at 49000000 {
> +			compatible = "ti,edma3";
> +			ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2";
> +			reg =	<0x49000000 0x10000>,
> +				<0x44e10f90 0x10>;
> +			interrupts = <12 13 14>;
> +			#dma-cells = <1>;
> +			dma-channels = <64>;
> +			ti,edma-regions = <4>;
> +			ti,edma-slots = <256>;
> +		};
> +
>   		gpio0: gpio at 44e07000 {
>   			compatible = "ti,omap4-gpio";
>   			ti,hwmods = "gpio1";
>




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