mirror of
https://github.com/torvalds/linux.git
synced 2026-04-18 14:53:58 -04:00
9054127096
Convert STMicroelectronics SPI FSM Serial NOR Flash Controller binding to DT Schema. Signed-off-by: Akhila YS <akhilayalmati@gmail.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
69 lines
1.9 KiB
YAML
69 lines
1.9 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/mtd/st,spi-fsm.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: STMicroelectronics SPI FSM Serial NOR Flash Controller
|
|
|
|
maintainers:
|
|
- Angus Clark <angus.clark@st.com>
|
|
|
|
description:
|
|
The STMicroelectronics Fast Sequence Mode (FSM) controller is a dedicated
|
|
hardware accelerator integrated in older STiH4xx/STiDxxx set-top box SoCs
|
|
(such as STiH407, STiH416, STiD127). It connects directly to a single
|
|
external serial flash device used as the primary boot device. The FSM
|
|
executes hard-coded or configurable instruction sequences in hardware,
|
|
providing low-latency reads suitable for execute-in-place (XIP) boot
|
|
and high read bandwidth.
|
|
|
|
properties:
|
|
compatible:
|
|
const: st,spi-fsm
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
reg-names:
|
|
const: spi-fsm
|
|
|
|
interrupts:
|
|
maxItems: 1
|
|
|
|
st,syscfg:
|
|
$ref: /schemas/types.yaml#/definitions/phandle
|
|
description: Phandle to the system configuration registers used for boot-device selection.
|
|
|
|
st,boot-device-reg:
|
|
$ref: /schemas/types.yaml#/definitions/uint32
|
|
description: Offset of the boot-device register within the st,syscfg node.
|
|
|
|
st,boot-device-spi:
|
|
$ref: /schemas/types.yaml#/definitions/uint32
|
|
description: Expected boot-device value when booting from this SPI controller.
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- reg-names
|
|
- interrupts
|
|
- pinctrl-0
|
|
|
|
unevaluatedProperties: false
|
|
|
|
examples:
|
|
- |
|
|
#include <dt-bindings/interrupt-controller/arm-gic.h>
|
|
spifsm@fe902000 {
|
|
compatible = "st,spi-fsm";
|
|
reg = <0xfe902000 0x1000>;
|
|
reg-names = "spi-fsm";
|
|
interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
|
|
pinctrl-0 = <&pinctrl_fsm>;
|
|
st,syscfg = <&syscfg_rear>;
|
|
st,boot-device-reg = <0x958>;
|
|
st,boot-device-spi = <0x1a>;
|
|
};
|
|
...
|