| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | Spreadtrum SPI Controller |
| 2 | |
| 3 | Required properties: |
| 4 | - compatible: Should be "sprd,sc9860-spi". |
| 5 | - reg: Offset and length of SPI controller register space. |
| 6 | - interrupts: Should contain SPI interrupt. |
| 7 | - clock-names: Should contain following entries: |
| 8 | "spi" for SPI clock, |
| 9 | "source" for SPI source (parent) clock, |
| 10 | "enable" for SPI module enable clock. |
| 11 | - clocks: List of clock input name strings sorted in the same order |
| 12 | as the clock-names property. |
| 13 | - #address-cells: The number of cells required to define a chip select |
| 14 | address on the SPI bus. Should be set to 1. |
| 15 | - #size-cells: Should be set to 0. |
| 16 | |
| 17 | Optional properties: |
| 18 | dma-names: Should contain names of the SPI used DMA channel. |
| 19 | dmas: Should contain DMA channels and DMA slave ids which the SPI used |
| 20 | sorted in the same order as the dma-names property. |
| 21 | |
| 22 | Example: |
| 23 | spi0: spi@70a00000{ |
| 24 | compatible = "sprd,sc9860-spi"; |
| 25 | reg = <0 0x70a00000 0 0x1000>; |
| 26 | interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; |
| 27 | clock-names = "spi", "source","enable"; |
| 28 | clocks = <&clk_spi0>, <&ext_26m>, <&clk_ap_apb_gates 5>; |
| 29 | dma-names = "rx_chn", "tx_chn"; |
| 30 | dmas = <&apdma 11 11>, <&apdma 12 12>; |
| 31 | #address-cells = <1>; |
| 32 | #size-cells = <0>; |
| 33 | }; |