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Mon, 02 Nov 2026 01:07:28 -0800 (PST) Received: from cypher.home.roving-it.com ([2001:8b0:fb11:0:3889:86e0:d449:e2e1]) by smtp.googlemail.com with ESMTPSA id 5b1f17b1804b1-4abf5b27e46sm417879945e9.3.2026.11.02.01.07.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Nov 2026 01:07:28 -0800 (PST) From: Peter Robinson To: Florian Fainelli , Dave Stevenson , Ray Jui , Scott Branden , Vinod Koul , Frank Li , dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, bcm-kernel-feedback-list@broadcom.com Cc: Peter Robinson Subject: [PATCH 6/9] ARM: dts: bcm2711: Add 40-bit DMA controller Date: Mon, 2 Nov 2026 09:06:56 +0000 Message-ID: <20261102090713.896324-7-pbrobinson@gmail.com> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261102090713.896324-1-pbrobinson@gmail.com> References: <20261102090713.896324-1-pbrobinson@gmail.com> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261102_010730_846311_DED80FF6 X-CRM114-Status: GOOD ( 11.03 ) X-Spam-Score: -2.1 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Describe the four DMA4 channels (11-14) of BCM2711. They sit on the SCB so they can reach all of memory. Signed-off-by: Peter Robinson --- arch/arm/boot/dts/broadcom/bcm2711.dtsi | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/arm/boot/dts/broadcom/bcm2711.dtsi b/arch/arm/boot/dts/broadcom/bcm2711.dtsi index 5e3b4bb393967..9d70bea17b11c 100644 --- a/arch/arm/boot/dts/broadcom/bcm2711.dtsi +++ b/arch/arm/boot/dts/broadcom/bcm2711.dtsi @@ -602,6 +602,22 @@ genet_mdio: mdio@e14 { }; }; + dma40: dma-controller@7e007b00 { + compatible = "brcm,bcm2711-dma"; + reg = <0x0 0x7e007b00 0x400>; + interrupts = , /* dma4 11 */ + , /* dma4 12 */ + , /* dma4 13 */ + ; /* dma4 14 */ + interrupt-names = "dma11", + "dma12", + "dma13", + "dma14"; + #dma-cells = <1>; + brcm,dma-channel-mask = <0x7800>; + status = "disabled"; + }; + xhci: usb@7e9c0000 { compatible = "brcm,bcm2711-xhci", "brcm,xhci-brcm-v2"; reg = <0x0 0x7e9c0000 0x100000>; -- 2.56.0