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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/pinctrl/brcm,bcm2712c0-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Broadcom STB family pin controller
maintainers:
- Ivan T. Ivanov <iivanov@suse.de>
- A. della Porta <andrea.porta@suse.com>
description: >
Broadcom's STB family of memory-mapped pin controllers.
This includes the pin controllers inside the BCM2712 SoC which
are instances of the STB family and has two silicon variants,
C0 and D0, which differs slightly in terms of registers layout.
The -aon- (Always On) variant is the same IP block but differs
in the number of pins that are associated and the pinmux functions
for each of those pins.
allOf:
- $ref: pinctrl.yaml#
properties:
compatible:
enum:
- brcm,bcm2712c0-pinctrl
- brcm,bcm2712c0-aon-pinctrl
- brcm,bcm2712d0-pinctrl
- brcm,bcm2712d0-aon-pinctrl
reg:
maxItems: 1
patternProperties:
'-state$':
oneOf:
- $ref: '#/$defs/brcmstb-pinctrl-state'
- patternProperties:
'-pins$':
$ref: '#/$defs/brcmstb-pinctrl-state'
additionalProperties: false
$defs:
brcmstb-pinctrl-state:
allOf:
- $ref: pincfg-node.yaml#
- $ref: pinmux-node.yaml#
description: >
Pin controller client devices use pin configuration subnodes (children
and grandchildren) for desired pin configuration.
Client device subnodes use below standard properties.
properties:
pins:
description:
List of gpio pins affected by the properties specified in this
subnode (either this or "groups" must be specified).
items:
pattern: '^((aon_)?s?gpio[0-6]?[0-9])|(emmc_(clk|cmd|dat[0-7]|ds))$'
function:
description:
Specify the alternative function to be configured for the specified
pins.
enum: [ gpio, alt1, alt2, alt3, alt4, alt5, alt6, alt7, alt8,
aon_cpu_standbyb, aon_fp_4sec_resetb, aon_gpclk, aon_pwm,
arm_jtag, aud_fs_clk0, avs_pmu_bsc, bsc_m0, bsc_m1, bsc_m2,
bsc_m3, clk_observe, ctl_hdmi_5v, enet0, enet0_mii, enet0_rgmii,
ext_sc_clk, fl0, fl1, gpclk0, gpclk1, gpclk2, hdmi_tx0_auto_i2c,
hdmi_tx0_bsc, hdmi_tx1_auto_i2c, hdmi_tx1_bsc, i2s_in, i2s_out,
ir_in, mtsif, mtsif_alt, mtsif_alt1, pdm, pkt, pm_led_out, sc0,
sd0, sd2, sd_card_a, sd_card_b, sd_card_c, sd_card_d, sd_card_e,
sd_card_f, sd_card_g, spdif_out, spi_m, spi_s, sr_edm_sense, te0,
te1, tsio, uart0, uart1, uart2, usb_pwr, usb_vbus, uui, vc_i2c0,
vc_i2c3, vc_i2c4, vc_i2c5, vc_i2csl, vc_pcm, vc_pwm0, vc_pwm1,
vc_spi0, vc_spi3, vc_spi4, vc_spi5, vc_uart0, vc_uart2, vc_uart3,
vc_uart4 ]
bias-disable: true
bias-pull-down: true
bias-pull-up: true
required:
- pins
if:
properties:
pins:
not:
contains:
pattern: "^emmc_(clk|cmd|dat[0-7]|ds)$"
then:
required:
- function
else:
properties:
function: false
additionalProperties: false
required:
- compatible
- reg
unevaluatedProperties: false
examples:
- |
pinctrl@7d504100 {
compatible = "brcm,bcm2712c0-pinctrl";
reg = <0x7d504100 0x30>;
bt-shutdown-default-state {
function = "gpio";
pins = "gpio29";
};
uarta-default-state {
rts-tx-pins {
function = "uart0";
pins = "gpio24", "gpio26";
bias-disable;
};
cts-rx-pins {
function = "uart0";
pins = "gpio25", "gpio27";
bias-pull-up;
};
};
};
|
