From: Green Wan <green.wan@sifive.com>
To: linux-hackers@sifive.com
Cc: Mark Rutland <mark.rutland@arm.com>,
devicetree@vger.kernel.org, Albert Ou <aou@eecs.berkeley.edu>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Palmer Dabbelt <palmer@sifive.com>,
Yash Shah <yash.shah@sifive.com>,
Green Wan <green.wan@sifive.com>, Bin Meng <bmeng.cn@gmail.com>,
dmaengine@vger.kernel.org, Vinod Koul <vkoul@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Sagar Kadam <sagar.kadam@sifive.com>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
Dan Williams <dan.j.williams@intel.com>,
"Paul E. McKenney" <paulmck@linux.ibm.com>,
linux-riscv@lists.infradead.org,
"David S. Miller" <davem@davemloft.net>,
linux-kernel@vger.kernel.org
Subject: [PATCH v4 1/4] dt-bindings: dmaengine: sf-pdma: add bindins for SiFive PDMA
Date: Thu, 3 Oct 2019 17:09:01 +0800 [thread overview]
Message-ID: <20191003090945.29210-2-green.wan@sifive.com> (raw)
In-Reply-To: <20191003090945.29210-1-green.wan@sifive.com>
Add DT bindings document for Platform DMA(PDMA) driver of board,
HiFive Unleashed Rev A00.
Signed-off-by: Green Wan <green.wan@sifive.com>
---
.../bindings/dma/sifive,fu540-c000-pdma.yaml | 55 +++++++++++++++++++
1 file changed, 55 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..2ca3ddbe1ff4
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml
@@ -0,0 +1,55 @@
+# 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 <green.wan@sifive.com>
+ - Palmer Debbelt <palmer@sifive.com>
+ - Paul Walmsley <paul.walmsley@sifive.com>
+
+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: 1
+ maxItems: 8
+
+ '#dma-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - '#dma-cells'
+
+examples:
+ - |
+ dma@3000000 {
+ compatible = "sifive,fu540-c000-pdma";
+ reg = <0x0 0x3000000 0x0 0x8000>;
+ interrupts = <23 24 25 26 27 28 29 30>;
+ #dma-cells = <1>;
+ };
+
+...
--
2.17.1
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next prev parent reply other threads:[~2019-10-03 9:11 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-03 9:09 [PATCH v4 0/4] dmaengine: sf-pdma: Add platform dma driver Green Wan
2019-10-03 9:09 ` Green Wan [this message]
2019-10-09 23:34 ` [PATCH v4 1/4] dt-bindings: dmaengine: sf-pdma: add bindins for SiFive PDMA Rob Herring
2019-10-03 9:09 ` [PATCH v4 2/4] riscv: dts: add support for PDMA device of HiFive Unleashed Rev A00 Green Wan
2019-10-03 9:09 ` [PATCH v4 3/4] dmaengine: sf-pdma: add platform DMA support for HiFive Unleashed A00 Green Wan
2019-10-13 13:04 ` [RFC PATCH] dmaengine: sf-pdma: sf_pdma_disclaim_chan() can be static kbuild test robot
2019-10-13 13:04 ` [PATCH v4 3/4] dmaengine: sf-pdma: add platform DMA support for HiFive Unleashed A00 kbuild test robot
2019-10-20 13:59 ` Vinod Koul
2019-10-03 9:09 ` [PATCH v4 4/4] MAINTAINERS: Add Green as SiFive PDMA driver maintainer Green Wan
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