From: Ray Jui <ray.jui@broadcom.com> To: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>, Rob Herring <robh+dt@kernel.org>, Ray Jui <rjui@broadcom.com>, Scott Branden <sbranden@broadcom.com>, bcm-kernel-feedback-list@broadcom.com, Arnd Bergmann <arnd@arndb.de>, Florian Fainelli <f.fainelli@gmail.com>, Zhen Lei <thunder.leizhen@huawei.com>, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Bharat Gooty <bharat.gooty@broadcom.com> Subject: Re: [PATCH v1 1/1] arm64: dts: stingray: fix usb dma address translation Date: Tue, 19 Jan 2021 09:44:18 -0800 [thread overview] Message-ID: <2ea086ec-9af4-aaab-9ebf-a8e5986c9063@broadcom.com> (raw) In-Reply-To: <20210119053444.23108-1-rayagonda.kokatanur@broadcom.com> [-- Attachment #1: Type: text/plain, Size: 1601 bytes --] On 1/18/2021 9:34 PM, Rayagonda Kokatanur wrote: > From: Bharat Gooty <bharat.gooty@broadcom.com> > > Add a non-empty dma-ranges so that dma address translation > happens. > > Fixes: 2013a4b684b6 ("arm64: dts: broadcom: clear the warnings caused by empty dma-ranges") > > Signed-off-by: Bharat Gooty <bharat.gooty@broadcom.com> > Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com> > --- > arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi b/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi > index aef8f2b00778..5401a646c840 100644 > --- a/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi > +++ b/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi > @@ -4,11 +4,16 @@ > */ > usb { > compatible = "simple-bus"; > - dma-ranges; > #address-cells = <2>; > #size-cells = <2>; > ranges = <0x0 0x0 0x0 0x68500000 0x0 0x00400000>; > > + /* > + * Internally, USB bus to the interconnect can only address up > + * to 40-bit > + */ > + dma-ranges = <0 0 0 0 0x100 0x0>; > + Should have had my signed-off since during our internal review, I added the above comment to explain why we set it to 40-bit here despite the USB controller itself is capable of addressing 64-bit as Arnd pointed out. Well, the following ack should do it too, thanks. Acked-by: Ray Jui <ray.jui@broadcom.com> > usbphy0: usb-phy@0 { > compatible = "brcm,sr-usb-combo-phy"; > reg = <0x0 0x00000000 0x0 0x100>; > [-- Attachment #2: S/MIME Cryptographic Signature --] [-- Type: application/pkcs7-signature, Size: 4151 bytes --]
WARNING: multiple messages have this Message-ID (diff)
From: Ray Jui <ray.jui@broadcom.com> To: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>, Rob Herring <robh+dt@kernel.org>, Ray Jui <rjui@broadcom.com>, Scott Branden <sbranden@broadcom.com>, bcm-kernel-feedback-list@broadcom.com, Arnd Bergmann <arnd@arndb.de>, Florian Fainelli <f.fainelli@gmail.com>, Zhen Lei <thunder.leizhen@huawei.com>, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Bharat Gooty <bharat.gooty@broadcom.com> Subject: Re: [PATCH v1 1/1] arm64: dts: stingray: fix usb dma address translation Date: Tue, 19 Jan 2021 09:44:18 -0800 [thread overview] Message-ID: <2ea086ec-9af4-aaab-9ebf-a8e5986c9063@broadcom.com> (raw) In-Reply-To: <20210119053444.23108-1-rayagonda.kokatanur@broadcom.com> [-- Attachment #1.1: Type: text/plain, Size: 1601 bytes --] On 1/18/2021 9:34 PM, Rayagonda Kokatanur wrote: > From: Bharat Gooty <bharat.gooty@broadcom.com> > > Add a non-empty dma-ranges so that dma address translation > happens. > > Fixes: 2013a4b684b6 ("arm64: dts: broadcom: clear the warnings caused by empty dma-ranges") > > Signed-off-by: Bharat Gooty <bharat.gooty@broadcom.com> > Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com> > --- > arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi b/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi > index aef8f2b00778..5401a646c840 100644 > --- a/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi > +++ b/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi > @@ -4,11 +4,16 @@ > */ > usb { > compatible = "simple-bus"; > - dma-ranges; > #address-cells = <2>; > #size-cells = <2>; > ranges = <0x0 0x0 0x0 0x68500000 0x0 0x00400000>; > > + /* > + * Internally, USB bus to the interconnect can only address up > + * to 40-bit > + */ > + dma-ranges = <0 0 0 0 0x100 0x0>; > + Should have had my signed-off since during our internal review, I added the above comment to explain why we set it to 40-bit here despite the USB controller itself is capable of addressing 64-bit as Arnd pointed out. Well, the following ack should do it too, thanks. Acked-by: Ray Jui <ray.jui@broadcom.com> > usbphy0: usb-phy@0 { > compatible = "brcm,sr-usb-combo-phy"; > reg = <0x0 0x00000000 0x0 0x100>; > [-- Attachment #1.2: S/MIME Cryptographic Signature --] [-- Type: application/pkcs7-signature, Size: 4151 bytes --] [-- Attachment #2: Type: text/plain, Size: 176 bytes --] _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-01-19 22:30 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-01-19 5:34 [PATCH v1 1/1] arm64: dts: stingray: fix usb dma address translation Rayagonda Kokatanur 2021-01-19 5:34 ` Rayagonda Kokatanur 2021-01-19 8:45 ` Arnd Bergmann 2021-01-19 8:45 ` Arnd Bergmann 2021-01-19 17:44 ` Ray Jui [this message] 2021-01-19 17:44 ` Ray Jui 2021-01-20 18:45 ` Florian Fainelli 2021-01-20 18:45 ` Florian Fainelli
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