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43 lines
1.3 KiB
Plaintext
43 lines
1.3 KiB
Plaintext
* NXP Flex Serial Peripheral Interface (FSPI)
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Required properties:
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- compatible : Should be "nxp,lx2160a-fspi"
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"nxp,imx8qxp-fspi"
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"nxp,imx8mm-fspi"
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- reg : First contains the register location and length,
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Second contains the memory mapping address and length
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- reg-names : Should contain the resource reg names:
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- fspi_base: configuration register address space
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- fspi_mmap: memory mapped address space
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- interrupts : Should contain the interrupt for the device
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Required SPI slave node properties:
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- reg : There are two buses (A and B) with two chip selects each.
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This encodes to which bus and CS the flash is connected:
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- <0>: Bus A, CS 0
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- <1>: Bus A, CS 1
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- <2>: Bus B, CS 0
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- <3>: Bus B, CS 1
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Example showing the usage of two SPI NOR slave devices on bus A:
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fspi0: spi@20c0000 {
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compatible = "nxp,lx2160a-fspi";
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reg = <0x0 0x20c0000 0x0 0x10000>, <0x0 0x20000000 0x0 0x10000000>;
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reg-names = "fspi_base", "fspi_mmap";
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interrupts = <0 25 0x4>; /* Level high type */
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clocks = <&clockgen 4 3>, <&clockgen 4 3>;
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clock-names = "fspi_en", "fspi";
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mt35xu512aba0: flash@0 {
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reg = <0>;
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....
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};
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mt35xu512aba1: flash@1 {
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reg = <1>;
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....
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};
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};
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