0001 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/spi/rockchip-sfc.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: Rockchip Serial Flash Controller (SFC)
0008
0009 maintainers:
0010 - Heiko Stuebner <heiko@sntech.de>
0011 - Chris Morgan <macromorgan@hotmail.com>
0012
0013 allOf:
0014 - $ref: spi-controller.yaml#
0015
0016 properties:
0017 compatible:
0018 const: rockchip,sfc
0019 description:
0020 The rockchip sfc controller is a standalone IP with version register,
0021 and the driver can handle all the feature difference inside the IP
0022 depending on the version register.
0023
0024 reg:
0025 maxItems: 1
0026
0027 interrupts:
0028 maxItems: 1
0029
0030 clocks:
0031 items:
0032 - description: Bus Clock
0033 - description: Module Clock
0034
0035 clock-names:
0036 items:
0037 - const: clk_sfc
0038 - const: hclk_sfc
0039
0040 power-domains:
0041 maxItems: 1
0042
0043 rockchip,sfc-no-dma:
0044 description: Disable DMA and utilize FIFO mode only
0045 type: boolean
0046
0047 patternProperties:
0048 "^flash@[0-3]$":
0049 type: object
0050 properties:
0051 reg:
0052 minimum: 0
0053 maximum: 3
0054
0055 required:
0056 - compatible
0057 - reg
0058 - interrupts
0059 - clocks
0060 - clock-names
0061
0062 unevaluatedProperties: false
0063
0064 examples:
0065 - |
0066 #include <dt-bindings/clock/px30-cru.h>
0067 #include <dt-bindings/interrupt-controller/arm-gic.h>
0068 #include <dt-bindings/power/px30-power.h>
0069
0070 sfc: spi@ff3a0000 {
0071 compatible = "rockchip,sfc";
0072 reg = <0xff3a0000 0x4000>;
0073 interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
0074 clocks = <&cru SCLK_SFC>, <&cru HCLK_SFC>;
0075 clock-names = "clk_sfc", "hclk_sfc";
0076 pinctrl-0 = <&sfc_clk &sfc_cs &sfc_bus2>;
0077 pinctrl-names = "default";
0078 power-domains = <&power PX30_PD_MMC_NAND>;
0079 #address-cells = <1>;
0080 #size-cells = <0>;
0081
0082 flash@0 {
0083 compatible = "jedec,spi-nor";
0084 reg = <0>;
0085 spi-max-frequency = <108000000>;
0086 spi-rx-bus-width = <2>;
0087 spi-tx-bus-width = <2>;
0088 };
0089 };
0090
0091 ...
