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Mon, 27 Jan 2020 09:59:33 -0500 (EST) Date: Mon, 27 Jan 2020 15:59:31 +0100 From: Maxime Ripard To: Jernej Skrabec Subject: Re: [PATCH 3/5] arm64: dts: allwinner: a64: Add MBUS controller node Message-ID: <20200127145931.rjewha4awnlorfvb@gilmour.lan> References: <20200125110353.591658-1-jernej.skrabec@siol.net> <20200125110353.591658-4-jernej.skrabec@siol.net> MIME-Version: 1.0 In-Reply-To: <20200125110353.591658-4-jernej.skrabec@siol.net> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200127_065936_436338_C49C66D8 X-CRM114-Status: GOOD ( 16.20 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, devicetree@vger.kernel.org, linux-sunxi@googlegroups.com, linux-kernel@vger.kernel.org, wens@csie.org, robh+dt@kernel.org, mchehab@kernel.org, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Content-Type: multipart/mixed; boundary="===============6301585628964513481==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============6301585628964513481== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="hchmskw2va5gdqje" Content-Disposition: inline --hchmskw2va5gdqje Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi, On Sat, Jan 25, 2020 at 12:03:51PM +0100, Jernej Skrabec wrote: > A64 contains MBUS, which is the bus used by DMA devices to access > system memory. > > MBUS controller is responsible for arbitration between channels based > on set priority and can do some other things as well, like report > bandwidth used. It also maps RAM region to different address than CPU. > > Signed-off-by: Jernej Skrabec > --- > arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi > index 862b47dc9dc9..d225ea1f3b87 100644 > --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi > +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi > @@ -1061,6 +1061,14 @@ pwm: pwm@1c21400 { > status = "disabled"; > }; > > + mbus: dram-controller@1c62000 { > + compatible = "allwinner,sun50i-a64-mbus"; > + reg = <0x01c62000 0x1000>; > + clocks = <&ccu CLK_MBUS>; We're merging the clock header patch and the DT through two different trees, so you can't use it right away. You should use the raw ID here. (also, as a general remark, it's easier on us to not send the patches during the rc6 <-> rc1 phase), so if you can resend them as soon as rc1 is out, that would be great :) Maxime --hchmskw2va5gdqje Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRcEzekXsqa64kGDp7j7w1vZxhRxQUCXi760wAKCRDj7w1vZxhR xV3PAQChOtKOxyE6bSJr+/fHayOoz8h6A1dqalhBnV4Yedxv2QD/a9QqEgknQXMe KRf3qGZyHOAWbKWvK2FkvcTP92UVFgE= =7bxe -----END PGP SIGNATURE----- --hchmskw2va5gdqje-- --===============6301585628964513481== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============6301585628964513481==--