[v6,1/2] mtd: spi-nor: Bindings for Rockchip serial flash controller

Submitted by Shawn Lin on Feb. 22, 2017, 3:02 a.m.

Details

Message ID 1487732523-97390-2-git-send-email-shawn.lin@rock-chips.com
State New
Delegated to: Cyrille Pitchen
Headers show

Commit Message

Shawn Lin Feb. 22, 2017, 3:02 a.m.
Add binding document for the Rockchip serial flash controller.

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

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

Changes in v6: None
Changes in v5: None
Changes in v4:
- use uppercase DMA for description

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

Patch hide | download patch | download mbox

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@301c0000 {
+	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>;
+	};
+};