linux-kernel - [PATCH v8 1/3] mtd: spi-nor: Bindings for Rockchip serial flash controller

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Message-Id: <1518092206-3770-1-git-send-email-andy.yan@rock-chips.com>
Date:   Thu,  8 Feb 2018 20:16:46 +0800
From:   Andy Yan <andy.yan@...k-chips.com>
To:     cyrille.pitchen@...ev4u.fr, mchehab@...nel.org, robh+dt@...nel.org,
        linux-mtd@...ts.infradead.org, shawn.lin@...k-chips.com,
        heiko@...ech.de
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, boris.brezillon@...e-electrons.com,
        Andy Yan <andy.yan@...k-chips.com>
Subject: [PATCH v8 1/3] mtd: spi-nor: Bindings for Rockchip serial flash controller

From: Shawn Lin <shawn.lin@...k-chips.com>

Add binding document for the Rockchip serial flash controller.

Signed-off-by: Shawn Lin <shawn.lin@...k-chips.com>

Acked-by: Marek Vasut <marek.vasut@...il.com>
Acked-by: Rob Herring <robh@...nel.org>

Signed-off-by: Andy Yan <andy.yan@...k-chips.com>
---

Changes in v8: None
Changes in v7: None
Changes in v6: None
Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None

 .../devicetree/bindings/mtd/rockchip-sfc.txt       | 31 ++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mtd/rockchip-sfc.txt

diff --git a/Documentation/devicetree/bindings/mtd/rockchip-sfc.txt b/Documentation/devicetree/bindings/mtd/rockchip-sfc.txt
new file mode 100644
index 0000000..1e449b0
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/rockchip-sfc.txt
@@ -0,0 +1,31 @@
+Rockchip Serial Flash Controller
+
+Required properties:
+- compatible : Should be
+		"rockchip,rv1108-sfc", "rockchip,sfc" for ROCKCHIP RV1108.
+- address-cells : Should be 1.
+- size-cells : Should be 0.
+- clocks: Must contain two entries for each entry in clock-names.
+- clock-names: Shall be "sfc" for the transfer-clock, and "hsfc" for
+		the peripheral clock.
+- interrupts : Should contain the interrupt for the device.
+- reg: Physical base address of the controller and length of memory mapped.
+
+Optional properties:
+- rockchip,sfc-no-dma: Indicate the controller doesn't support DMA transfer.
+
+Example:
+nor_flash: sfc@...c0000 {
+	compatible = "rockchip,rv1108-sfc", "rockchip,sfc";
+	#address-cells = <1>;
+	#size-cells = <0>;
+	clocks = <&cru SCLK_SFC>, <&cru HCLK_SFC>;
+	clock-names = "sfc", "hsfc";
+	interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
+	reg = <0x301c0000 0x1000>;
+	spi-nor@0 {
+		compatible = "jedec,spi-nor";
+		spi-max-frequency = <12000000>;
+		reg = <0>;
+	};
+};
-- 
2.7.4