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linux/arch/arm/boot/dts/sun8i-v40-bananapi-m2-berry.dts
Pablo Greco 3e4a856af3
ARM: dts: sun8i: v40: bananapi-m2-berry: Add Bluetooth device node 
The AP6212 is based on the Broadcom BCM43430 or BCM43438. The WiFi side
identifies as BCM43430, while the Bluetooth side identifies as BCM43438.

The Bluetooth side is connected to UART3 in a 4 wire configuration. Same
as the WiFi side, due to being the same chip and package, DLDO1 and
DLDO2 regulator outputs from the PMIC provide overall power via VBAT and
I/O power via VDDIO. The CLK_OUT_A clock output from the SoC provides
the LPO low power clock at 32.768 kHz.

This patch enables Bluetooth on this board, and also adds the missing
LPO clock on the WiFi side. There is also a PCM connection for
Bluetooth, but this is not covered here.

The LPO clock is fed from CLK_OUT_A, which needs to be muxed on pin
PI12. This can be represented in multiple ways. This patch puts the
pinctrl property in the pin controller node. This is due to limitations
in Linux, where pinmux settings, even the same one, can not be shared
by multiple devices. Thus we cannot put it in both the WiFi and
Bluetooth device nodes. Putting it the CCU node is another option, but
Linux's CCU driver does not handle pinctrl. Also the pin controller is
guaranteed to be initialized after the CCU, when clocks are available.
And any other devices that use muxed pins are guaranteed to be
initialized after the pin controller. Thus having the CLK_OUT_A pinmux
reference be in the pin controller node is a good choice without having
to deal with implementation issues.

Signed-off-by: Pablo Greco <pgreco@centosproject.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-05-20 09:27:31 +02:00

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/*
* Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
*
* This file is dual-licensed: you can use it either under the terms
* of the GPL or the X11 license, at your option. Note that this dual
* licensing only applies to this file, and not this project as a
* whole.
*
* a) This file is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This file is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* Or, alternatively,
*
* b) Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
/dts-v1/;
#include "sun8i-r40.dtsi"
#include <dt-bindings/gpio/gpio.h>
/ {
model = "Banana Pi M2 Berry";
compatible = "sinovoip,bpi-m2-berry", "allwinner,sun8i-r40";
aliases {
ethernet0 = &gmac;
serial0 = &uart0;
};
chosen {
stdout-path = "serial0:115200n8";
};
connector {
compatible = "hdmi-connector";
type = "a";
port {
hdmi_con_in: endpoint {
remote-endpoint = <&hdmi_out_con>;
};
};
};
leds {
compatible = "gpio-leds";
pwr-led {
label = "bananapi:red:pwr";
gpios = <&pio 7 20 GPIO_ACTIVE_HIGH>;
default-state = "on";
};
user-led {
label = "bananapi:green:user";
gpios = <&pio 7 21 GPIO_ACTIVE_HIGH>;
};
};
reg_vcc5v0: vcc5v0 {
compatible = "regulator-fixed";
regulator-name = "vcc5v0";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
gpio = <&pio 7 23 GPIO_ACTIVE_HIGH>; /* PH23 */
enable-active-high;
};
wifi_pwrseq: wifi_pwrseq {
compatible = "mmc-pwrseq-simple";
reset-gpios = <&pio 6 10 GPIO_ACTIVE_LOW>; /* PG10 WIFI_EN */
clocks = <&ccu CLK_OUTA>;
clock-names = "ext_clock";
};
};
&ahci {
ahci-supply = <&reg_dldo4>;
phy-supply = <&reg_eldo3>;
status = "okay";
};
&de {
status = "okay";
};
&ehci1 {
/* Terminus Tech FE 1.1s 4-port USB 2.0 hub here */
status = "okay";
};
&gmac {
pinctrl-names = "default";
pinctrl-0 = <&gmac_rgmii_pins>;
phy-handle = <&phy1>;
phy-mode = "rgmii";
phy-supply = <&reg_dc1sw>;
status = "okay";
};
&gmac_mdio {
phy1: ethernet-phy@1 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <1>;
};
};
&hdmi {
status = "okay";
};
&hdmi_out {
hdmi_out_con: endpoint {
remote-endpoint = <&hdmi_con_in>;
};
};
&i2c0 {
status = "okay";
axp22x: pmic@34 {
compatible = "x-powers,axp221";
reg = <0x34>;
interrupt-parent = <&nmi_intc>;
interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
};
};
#include "axp22x.dtsi"
&mmc0 {
vmmc-supply = <&reg_dcdc1>;
bus-width = <4>;
cd-gpios = <&pio 7 13 GPIO_ACTIVE_LOW>; /* PH13 */
status = "okay";
};
&mmc1 {
pinctrl-names = "default";
pinctrl-0 = <&mmc1_pg_pins>;
vmmc-supply = <&reg_dldo2>;
vqmmc-supply = <&reg_dldo1>;
mmc-pwrseq = <&wifi_pwrseq>;
bus-width = <4>;
non-removable;
status = "okay";
};
&pio {
pinctrl-names = "default";
pinctrl-0 = <&clk_out_a_pin>;
vcc-pa-supply = <&reg_aldo2>;
vcc-pc-supply = <&reg_dcdc1>;
vcc-pd-supply = <&reg_dcdc1>;
vcc-pe-supply = <&reg_eldo1>;
vcc-pf-supply = <&reg_dcdc1>;
vcc-pg-supply = <&reg_dldo1>;
};
&reg_aldo2 {
regulator-min-microvolt = <2500000>;
regulator-max-microvolt = <2500000>;
regulator-name = "vcc-pa";
};
&reg_aldo3 {
regulator-always-on;
regulator-min-microvolt = <2700000>;
regulator-max-microvolt = <3300000>;
regulator-name = "avcc";
};
&reg_dc1sw {
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
regulator-name = "vcc-gmac-phy";
};
&reg_dcdc1 {
regulator-always-on;
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
regulator-name = "vcc-3v0";
};
&reg_dcdc2 {
regulator-always-on;
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1300000>;
regulator-name = "vdd-cpu";
};
&reg_dcdc3 {
regulator-always-on;
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1300000>;
regulator-name = "vdd-sys";
};
&reg_dcdc5 {
regulator-always-on;
regulator-min-microvolt = <1500000>;
regulator-max-microvolt = <1500000>;
regulator-name = "vcc-dram";
};
&reg_dldo1 {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vcc-wifi-io";
};
/*
* Our WiFi chip needs both DLDO2 and DLDO3 to be powered at the same
* time, with the two being in sync, to be able to meet maximum power
* consumption during transmits. Since this is not really supported
* right now, just use the two as always on, and we will fix it later.
*/
&reg_dldo2 {
regulator-always-on;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vcc-wifi";
};
&reg_dldo3 {
regulator-always-on;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vcc-wifi-2";
};
&reg_dldo4 {
regulator-min-microvolt = <2500000>;
regulator-max-microvolt = <2500000>;
regulator-name = "vdd2v5-sata";
};
&reg_eldo3 {
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
regulator-name = "vdd1v2-sata";
};
&tcon_tv0 {
status = "okay";
};
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pb_pins>;
status = "okay";
};
&uart3 {
pinctrl-names = "default";
pinctrl-0 = <&uart3_pg_pins>, <&uart3_rts_cts_pg_pins>;
uart-has-rtscts;
status = "okay";
bluetooth {
compatible = "brcm,bcm43438-bt";
clocks = <&ccu CLK_OUTA>;
clock-names = "lpo";
vbat-supply = <&reg_dldo2>;
vddio-supply = <&reg_dldo1>;
device-wakeup-gpios = <&pio 6 11 GPIO_ACTIVE_HIGH>; /* PG11 */
/* TODO host wake line connected to PMIC GPIO pins */
shutdown-gpios = <&pio 7 12 GPIO_ACTIVE_HIGH>; /* PH12 */
max-speed = <1500000>;
};
};
&usbphy {
usb1_vbus-supply = <&reg_vcc5v0>;
status = "okay";
};
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