From bce49d1e3cfe48eb7a33a39da2530156c27fa3b2 Mon Sep 17 00:00:00 2001 From: Christophe Kerello Date: Fri, 12 Jun 2020 17:22:38 +0200 Subject: dt-bindings: mtd: update STM32 FMC2 NAND controller documentation These bindings can be used on SOCs where the FMC2 NAND controller is in standalone. In case that the FMC2 embeds 2 controllers (an external bus controller and a raw NAND controller), the register base address, the clock and the reset will be defined in the parent node. Signed-off-by: Christophe Kerello Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/1591975362-22009-3-git-send-email-christophe.kerello@st.com --- .../bindings/mtd/st,stm32-fmc2-nand.yaml | 83 +++++++++++++++------- 1 file changed, 57 insertions(+), 26 deletions(-) (limited to 'Documentation/devicetree/bindings/mtd/st,stm32-fmc2-nand.yaml') diff --git a/Documentation/devicetree/bindings/mtd/st,stm32-fmc2-nand.yaml b/Documentation/devicetree/bindings/mtd/st,stm32-fmc2-nand.yaml index b059267f6d20..6ae7de15d172 100644 --- a/Documentation/devicetree/bindings/mtd/st,stm32-fmc2-nand.yaml +++ b/Documentation/devicetree/bindings/mtd/st,stm32-fmc2-nand.yaml @@ -9,32 +9,19 @@ title: STMicroelectronics Flexible Memory Controller 2 (FMC2) Bindings maintainers: - Christophe Kerello -allOf: - - $ref: "nand-controller.yaml#" - properties: compatible: - const: st,stm32mp15-fmc2 + enum: + - st,stm32mp15-fmc2 + - st,stm32mp1-fmc2-nfc reg: - items: - - description: Registers - - description: Chip select 0 data - - description: Chip select 0 command - - description: Chip select 0 address space - - description: Chip select 1 data - - description: Chip select 1 command - - description: Chip select 1 address space + minItems: 6 + maxItems: 7 interrupts: maxItems: 1 - clocks: - maxItems: 1 - - resets: - maxItems: 1 - dmas: items: - description: tx DMA channel @@ -57,11 +44,55 @@ patternProperties: nand-ecc-strength: enum: [1, 4 ,8 ] +allOf: + - $ref: "nand-controller.yaml#" + + - if: + properties: + compatible: + contains: + const: st,stm32mp15-fmc2 + then: + properties: + reg: + items: + - description: Registers + - description: Chip select 0 data + - description: Chip select 0 command + - description: Chip select 0 address space + - description: Chip select 1 data + - description: Chip select 1 command + - description: Chip select 1 address space + + clocks: + maxItems: 1 + + resets: + maxItems: 1 + + required: + - clocks + + - if: + properties: + compatible: + contains: + const: st,stm32mp1-fmc2-nfc + then: + properties: + reg: + items: + - description: Chip select 0 data + - description: Chip select 0 command + - description: Chip select 0 address space + - description: Chip select 1 data + - description: Chip select 1 command + - description: Chip select 1 address space + required: - compatible - reg - interrupts - - clocks examples: - | @@ -77,13 +108,13 @@ examples: <0x81000000 0x1000>, <0x89010000 0x1000>, <0x89020000 0x1000>; - interrupts = ; - dmas = <&mdma1 20 0x10 0x12000a02 0x0 0x0>, - <&mdma1 20 0x10 0x12000a08 0x0 0x0>, - <&mdma1 21 0x10 0x12000a0a 0x0 0x0>; - dma-names = "tx", "rx", "ecc"; - clocks = <&rcc FMC_K>; - resets = <&rcc FMC_R>; + interrupts = ; + dmas = <&mdma1 20 0x2 0x12000a02 0x0 0x0>, + <&mdma1 20 0x2 0x12000a08 0x0 0x0>, + <&mdma1 21 0x2 0x12000a0a 0x0 0x0>; + dma-names = "tx", "rx", "ecc"; + clocks = <&rcc FMC_K>; + resets = <&rcc FMC_R>; #address-cells = <1>; #size-cells = <0>; -- cgit v1.2.3