linux-kernel - Re: [PATCH 2/5] ARM: BCM5301X: Specify USB controllers in DT

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Date:   Tue, 6 Dec 2016 09:28:33 -0800
From:   Ray Jui <ray.jui@...adcom.com>
To:     Rafał Miłecki <zajec5@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>
Cc:     Arnd Bergmann <arnd@...db.de>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Russell King <linux@...linux.org.uk>,
        Hauke Mehrtens <hauke@...ke-m.de>,
        bcm-kernel-feedback-list@...adcom.com, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Rafał Miłecki <rafal@...ecki.pl>
Subject: Re: [PATCH 2/5] ARM: BCM5301X: Specify USB controllers in DT



On 12/6/2016 9:17 AM, Rafał Miłecki wrote:
> From: Rafał Miłecki <rafal@...ecki.pl>
> 
> There are 3 separated controllers, one per USB /standard/. With PHY
> drivers in place they can be simply supported with generic drivers.
> 
> Signed-off-by: Rafał Miłecki <rafal@...ecki.pl>
> ---
>  arch/arm/boot/dts/bcm5301x.dtsi | 33 ++++++++++++++++++++++++++++++++-
>  1 file changed, 32 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boot/dts/bcm5301x.dtsi b/arch/arm/boot/dts/bcm5301x.dtsi
> index f09a2bb..bfc98d19 100644
> --- a/arch/arm/boot/dts/bcm5301x.dtsi
> +++ b/arch/arm/boot/dts/bcm5301x.dtsi
> @@ -248,8 +248,26 @@
>  
>  			#address-cells = <1>;
>  			#size-cells = <1>;
> +			ranges;
>  
> -			phys = <&usb2_phy>;
> +			interrupt-parent = <&gic>;
> +
> +			ohci: ohci@...00 {
> +				#usb-cells = <0>;
> +
> +				compatible = "generic-ohci";
> +				reg = <0x00022000 0x1000>;

Your label ohci@...00 does not match the 'reg' at 0x22000.

> +				interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
> +			};
> +
> +			ehci: ehci@...00 {
> +				#usb-cells = <0>;
> +
> +				compatible = "generic-ehci";
> +				reg = <0x00021000 0x1000>;

Looks like you got the label of ohci and ehci reversed?

> +				interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
> +				phys = <&usb2_phy>;
> +			};
>  		};
>  
>  		usb3: usb3@...00 {
> @@ -257,6 +275,19 @@
>  
>  			#address-cells = <1>;
>  			#size-cells = <1>;
> +			ranges;
> +
> +			interrupt-parent = <&gic>;
> +
> +			xhci: xhci@...00 {
> +				#usb-cells = <0>;
> +
> +				compatible = "generic-xhci";
> +				reg = <0x00023000 0x1000>;
> +				interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
> +				phys = <&usb3_phy>;
> +				phy-names = "usb";
> +			};
>  		};
>  
>  		spi@...00 {
>