linux-kernel - [PATCH 8/9] dt-bindings: spi: atmel-quadspi: QuadSPI driver for Microchip SAM9X60

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Message-ID: <20190130150818.24902-9-tudor.ambarus@microchip.com>
Date:   Wed, 30 Jan 2019 15:08:45 +0000
From:   <Tudor.Ambarus@...rochip.com>
To:     <broonie@...nel.org>, <Nicolas.Ferre@...rochip.com>,
        <alexandre.belloni@...tlin.com>, <Ludovic.Desroches@...rochip.com>
CC:     <linux-spi@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-mtd@...ts.infradead.org>,
        <Tudor.Ambarus@...rochip.com>
Subject: [PATCH 8/9] dt-bindings: spi: atmel-quadspi: QuadSPI driver for
 Microchip SAM9X60

From: Tudor Ambarus <tudor.ambarus@...rochip.com>

The sam9x60 qspi controller uses 2 clocks, one for the peripheral register
access, the other for the qspi core and phy. Both are mandatory.

Signed-off-by: Tudor Ambarus <tudor.ambarus@...rochip.com>
---
 .../devicetree/bindings/spi/atmel-quadspi.txt      | 28 ++++++++++++++++++++--
 1 file changed, 26 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/spi/atmel-quadspi.txt b/Documentation/devicetree/bindings/spi/atmel-quadspi.txt
index e9dae6264d89..e7b7f297c5d7 100644
--- a/Documentation/devicetree/bindings/spi/atmel-quadspi.txt
+++ b/Documentation/devicetree/bindings/spi/atmel-quadspi.txt
@@ -1,14 +1,22 @@
 * Atmel Quad Serial Peripheral Interface (QSPI)
 
 Required properties:
-- compatible:     Should be "atmel,sama5d2-qspi".
+- compatible:     Should be one of the following
+		  - "atmel,sama5d2-qspi"
+		  - "microchip,sam9x60-qspi"
 - reg:            Should contain the locations and lengths of the base registers
                   and the mapped memory.
 - reg-names:      Should contain the resource reg names:
                   - qspi_base: configuration register address space
                   - qspi_mmap: memory mapped address space
 - interrupts:     Should contain the interrupt for the device.
-- clocks:         The phandle of the clock needed by the QSPI controller.
+- clocks:	  - "atmel,sama5d2-qspi": the phandle of the clock needed by the
+		  QSPI controller.
+		  - "microchip,sam9x60-qspi": should reference the peripheral
+		  and system QSPI clocks.
+- clock-names:    Only for sam9x60 - should contain two strigs:
+		  - "pclk" for the peripheral clock
+		  - "qspick" for the system clock
 - #address-cells: Should be <1>.
 - #size-cells:    Should be <0>.
 
@@ -29,3 +37,19 @@ spi@...20000 {
 		...
 	};
 };
+
+qspi@...14000 {
+	compatible = "microchip,sam9x60-qspi";
+	reg = <0xf0014000 0x100>, <0x70000000 0x08000000>;
+	reg-names = "qspi_base", "qspi_mmap";
+	interrupts = <35 IRQ_TYPE_LEVEL_HIGH 7>;
+	clocks =  <&pmc PMC_TYPE_PERIPHERAL 35>, <&pmc PMC_TYPE_SYSTEM 19>;
+	clock-names = "pclk", "qspick";
+	#address-cells = <1>;
+	#size-cells = <0>;
+	pinctrl-names = "default";
+
+	flash@0 {
+		...
+	};
+};
-- 
2.9.5