tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/spi/st,stm32-qspi.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: STMicroelectronics STM32 Quad Serial Peripheral Interface (QSPI) bindings
8
9maintainers:
10 - Christophe Kerello <christophe.kerello@st.com>
11 - Patrice Chotard <patrice.chotard@st.com>
12
13allOf:
14 - $ref: "spi-controller.yaml#"
15
16properties:
17 compatible:
18 const: st,stm32f469-qspi
19
20 reg:
21 items:
22 - description: registers
23 - description: memory mapping
24
25 reg-names:
26 items:
27 - const: qspi
28 - const: qspi_mm
29
30 clocks:
31 maxItems: 1
32
33 interrupts:
34 maxItems: 1
35
36 resets:
37 maxItems: 1
38
39 dmas:
40 items:
41 - description: tx DMA channel
42 - description: rx DMA channel
43
44 dma-names:
45 items:
46 - const: tx
47 - const: rx
48
49required:
50 - compatible
51 - reg
52 - reg-names
53 - clocks
54 - interrupts
55
56examples:
57 - |
58 #include <dt-bindings/interrupt-controller/arm-gic.h>
59 #include <dt-bindings/clock/stm32mp1-clks.h>
60 #include <dt-bindings/reset/stm32mp1-resets.h>
61 spi@58003000 {
62 compatible = "st,stm32f469-qspi";
63 reg = <0x58003000 0x1000>, <0x70000000 0x10000000>;
64 reg-names = "qspi", "qspi_mm";
65 interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>;
66 dmas = <&mdma1 22 0x10 0x100002 0x0 0x0>,
67 <&mdma1 22 0x10 0x100008 0x0 0x0>;
68 dma-names = "tx", "rx";
69 clocks = <&rcc QSPI_K>;
70 resets = <&rcc QSPI_R>;
71
72 #address-cells = <1>;
73 #size-cells = <0>;
74
75 flash@0 {
76 compatible = "jedec,spi-nor";
77 reg = <0>;
78 spi-rx-bus-width = <4>;
79 spi-max-frequency = <108000000>;
80 };
81 };
82
83...