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[111.241.124.228]) by smtp.gmail.com with ESMTPSA id v21sm1318096pjy.3.2019.09.16.23.22.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Sep 2019 23:22:43 -0700 (PDT) From: Green Wan To: Subject: [PATCH 1/3] dt-bindings: dmaengine: sf-pdma: add bindins for SiFive PDMA Date: Tue, 17 Sep 2019 14:22:05 +0800 Message-Id: <20190917062239.762-1-green.wan@sifive.com> X-Mailer: git-send-email 2.17.1 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190916_232245_799285_4A8CBFF2 X-CRM114-Status: GOOD ( 12.27 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:643 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain X-BeenThere: linux-riscv@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 , devicetree@vger.kernel.org, Greg Kroah-Hartman , Linus Walleij , Palmer Dabbelt , Nicolas Ferre , Green Wan , linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, Vinod Koul , Rob Herring , Paul Walmsley , Mauro Carvalho Chehab , linux-hackers@sifive.com, linux-riscv@lists.infradead.org, "Paul E. McKenney" , "David S. Miller" MIME-Version: 1.0 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+patchwork-linux-riscv=patchwork.kernel.org@lists.infradead.org Add DT bindings document for Platform DMA(PDMA) driver of board, HiFive Unleashed Rev A00. Signed-off-by: Green Wan --- .../bindings/dma/sifive,fu540-c000-pdma.yaml | 63 +++++++++++++++++++ MAINTAINERS | 5 ++ 2 files changed, 68 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml diff --git a/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml b/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml new file mode 100644 index 000000000000..b5423f1cfcaf --- /dev/null +++ b/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml @@ -0,0 +1,63 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/sifive,fu540-c000-pdma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: SiFive Unleashed Rev C000 Platform DMA + +maintainers: + - Green Wan + - Palmer Debbelt + - Paul Walmsley + +description: | + Platform DMA is a DMA engine of SiFive Unleashed. It supports 4 + channels. Each channel has 2 interrupts. One is for DMA done and + the other is for DME error. + + In different SoC, DMA could be attached to different IRQ line. + DT file need to be changed to meet the difference. For technical + doc, + + https://static.dev.sifive.com/FU540-C000-v1.0.pdf + +properties: + compatible: + items: + - const: sifive,fu540-c000-pdma + + reg: + maxItems: 1 + + interrupts: + minItems: 8 + maxItems: 8 + + interrupt-parent: + description: + Interrupt parent must correspond to the name PLIC interrupt + controller, i.e. "plic0" + maxItems: 1 + + '#dma-cells': + const: 1 + +required: + - compatible + - reg + - interrupt-parent + - interrupts + - '#dma-cells' + +examples: + - | + dma@3000000 { + compatible = "sifive,fu540-c000-pdma"; + reg = <0x0 0x3000000 0x0 0x8000>; + interrupt-parent = <&plic0>; + interrupts = <23 24 25 26 27 28 29 30>; + #dma-cells = <1>; + }; + +... diff --git a/MAINTAINERS b/MAINTAINERS index 49f75d1b7b51..d0caa09a479e 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -14591,6 +14591,11 @@ F: drivers/media/usb/siano/ F: drivers/media/usb/siano/ F: drivers/media/mmc/siano/ +SIFIVE PDMA DRIVER +M: Green Wan +S: Maintained +F: Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml + SIFIVE DRIVERS M: Palmer Dabbelt M: Paul Walmsley