[PATCH 5/5] ARM: dts: sun9i: Initial support for the Sunchip CX-A99 board

From: Rask Ingemann Lambertsen
Date: Thu Jan 26 2017 - 16:29:36 EST

The Suncip CX-A99 board is found in at least four brands of media players.
It features an Allwinner A80 ARM SoC and is found in two models:

1) 2 GiB DDR3 DRAM and 16 GB eMMC
2) 4 GiB DDR3 DRAM and 32 GB eMMC

For details of the board, see the linux-sunxi page
<URL:https://linux-sunxi.org/Sunchip_CX-A99>.

Supported features (+ means tested):
+ One Cortex-A7 CPU core
+ AXP808 power management chip
+ OZ80120 voltage regulator
+ Serial console port (internal)
+ eMMC and SD card slot
+ USB 2.0 host ports on on-board USB hub
+ SATA port on on-board SATA-to-USB bridge *
+ IEEE 802.11 a/b/g/n/ac SDIO Wifi
+ Real-time clock
+ LEDs
- IR receiver for remote control

* In addition to connecting a SATA device, some unknown magic is necessary
after power-up to get the SATA-to-USB bridge to show up on the USB bus.
As a workaround, run the vendor U-Boot once after power-up.

So far unsupported features:
- Using more than one CPU core or any of the Cortex-A15 CPU cores
- USB 3.0 OTG port (except for supplying 5V power)
- IEEE 802.3 10/100/1000 megabit Ethernet
- HDMI connector
- SPDIF audio output
- Jack socket with composite video and analog stereo audio
- Bluetooth
- FM radio receiver (assuming it is even wired on the board)

Signed-off-by: Rask Ingemann Lambertsen <rask@xxxxxxxxxxxx>
---

Changes in v5:
- Switched pinmux modes to generic properties and dropped
#include <dt-bindings/pinctrl/sun4i-a10.h> as a consequence.
- Dropped pinctrl properties from GPIO nodes and dropped the pinmux
nodes for them.
- AXP808 regulators added.
- Dropped the now unused #include <sunxi-common-regulators.dtsi>.
- Ampak AP6335 SDIO-Wifi added.
- USB Vbus changes as per v4 comments.
- Added "broken-cd" to mmc0 because GPIO interrupts don't work.

Changes in v4:
- Node names had underscores changed to hyphens.
- Changed formatting of the ac100/rtc node's clock output name list to match
that of the same node in the cubieboard4 and a80-optimus device trees.

Changes in v3:
None.

Changes in v2:
- Fixed formatting and style issues found by scripts/checkpatch.pl.

arch/arm/boot/dts/Makefile | 3 +-
arch/arm/boot/dts/sun9i-a80-cx-a99.dts | 413 +++++++++++++++++++++++++++++++++
2 files changed, 415 insertions(+), 1 deletion(-)
create mode 100644 arch/arm/boot/dts/sun9i-a80-cx-a99.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index e7994df..d9f47e1 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -859,7 +859,8 @@ dtb-$(CONFIG_MACH_SUN8I) += \
sun8i-r16-parrot.dtb
dtb-$(CONFIG_MACH_SUN9I) += \
sun9i-a80-optimus.dtb \
- sun9i-a80-cubieboard4.dtb
+ sun9i-a80-cubieboard4.dtb \
+ sun9i-a80-cx-a99.dtb
dtb-$(CONFIG_ARCH_TANGO) += \
tango4-vantage-1172.dtb
dtb-$(CONFIG_ARCH_TEGRA_2x_SOC) += \
diff --git a/arch/arm/boot/dts/sun9i-a80-cx-a99.dts b/arch/arm/boot/dts/sun9i-a80-cx-a99.dts
new file mode 100644
index 0000000..8925093
--- /dev/null
+++ b/arch/arm/boot/dts/sun9i-a80-cx-a99.dts
@@ -0,0 +1,413 @@
+/*
+ * sun9i-a80-cx-a99.dts - Device Tree file for the Sunchip CX-A99 board.
+ *
+ * Copyright (C) 2017 Rask Ingemann Lambertsen <rask@xxxxxxxxxxxx>
+ *
+ * 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.
+ */
+
+/*
+ * The Sunchip CX-A99 board is found in several similar Android media
+ * players, such as:
+ *
+ * Instabox Fantasy A8 (no external antenna)
+ * Jesurun CS-Q8 (ships with larger remote control)
+ * Jesurun Maxone
+ * Rikomagic (RKM) MK80/MK80LE
+ * Tronsmart Draco AW80 Meta/Telos
+ *
+ * See <URL:https://linux-sunxi.org/Sunchip_CX-A99> for more information.
+ */
+
+/dts-v1/;
+#include "sun9i-a80.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ model = "Sunchip CX-A99";
+ compatible = "sunchip,cx-a99", "allwinner,sun9i-a80";
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ blue {
+ gpios = <&pio 6 10 GPIO_ACTIVE_HIGH>; /* PG10 */
+ label = "cx-a99:blue:status";
+ default-state = "on";
+ };
+
+ red {
+ gpios = <&pio 6 11 GPIO_ACTIVE_HIGH>; /* PG11 */
+ label = "cx-a99:red:status";
+ };
+ };
+
+ powerseq_wifi: powerseq-wifi {
+ compatible = "mmc-pwrseq-simple";
+ clocks = <&ac100_rtc 1>;
+ clock-names = "ext_clock";
+ reset-gpios = <&r_pio 1 0 GPIO_ACTIVE_LOW>; /* PM0 */
+ post-power-on-delay-ms = <1>; /* Minimum 2 cycles. */
+ };
+
+ /* USB 3.0 OTG connector. For now, only Vbus is supported. */
+ reg_usb0_vbus: regulator-usb0-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usb0-vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ gpio = <&pio 7 15 GPIO_ACTIVE_HIGH>; /* PH15 */
+ enable-active-high;
+ regulator-always-on;
+ };
+
+ /*
+ * A GL850G hub with two external USB connectors is connected
+ * to ehci0. Each has a Vbus regulator controlled by a GPIO:
+ * PL7 for port 1, closest to the 12 V power connector, and
+ * PL8 for port 2, next to the SD card slot.
+ * Because regulator-fixed doesn't support a GPIO list, and
+ * allwinner,sun9i-a80-usb-phy doesn't support more than one
+ * supply, we have to use regulator-always-on on usb1-2-vbus.
+ * Note that the GPIO pins also need cldo1 to be enabled.
+ */
+ reg_usb1_1_vbus: regulator-usb1-1-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usb1-1-vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ gpio = <&r_pio 0 7 GPIO_ACTIVE_HIGH>; /* PL7 */
+ enable-active-high;
+ };
+
+ reg_usb1_2_vbus: regulator-usb1-2-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usb1-2-vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ gpio = <&r_pio 0 8 GPIO_ACTIVE_HIGH>; /* PL8 */
+ enable-active-high;
+ regulator-always-on;
+ };
+
+ /* OZ80120 voltage regulator for the four Cortex-A15 cores. */
+ reg_vdd_cpub: regulator-vdd-cpub {
+ compatible = "regulator-gpio";
+
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-min-microvolt = < 800000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-name = "vdd-cpub";
+
+ enable-gpio = <&r_pio 0 2 GPIO_ACTIVE_HIGH>; /* PL2 */
+ enable-active-high;
+ gpios = <&r_pio 0 3 GPIO_ACTIVE_HIGH>, /* PL3 */
+ <&r_pio 0 4 GPIO_ACTIVE_HIGH>, /* PL4 */
+ <&r_pio 0 5 GPIO_ACTIVE_HIGH>; /* PL5 */
+
+ gpios-states = <1 0 0>;
+ states = < 750000 0x7
+ 800000 0x3
+ 850000 0x5
+ 900000 0x1
+ 950000 0x6
+ 1000000 0x2
+ 1100000 0x4
+ 1200000 0x0>;
+ };
+};
+
+&ehci0 {
+ status = "okay";
+};
+
+&ehci2 {
+ status = "okay";
+};
+
+/* SD card slot. */
+&mmc0 {
+ bus-width = <4>;
+ cd-gpios = <&pio 7 17 GPIO_ACTIVE_LOW>; /* PH17 */
+ broken-cd; /* Interrupts don't work. */
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc0_pins>;
+ vmmc-supply = <&reg_dcdce>;
+ status = "okay";
+};
+
+/* Ampak AP6335 IEEE 802.11 a/b/g/n/ac "Wifi". */
+&mmc1 {
+ bus-width = <4>;
+ non-removable;
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc1_pins>;
+ vmmc-supply = <&reg_cldo3>; /* See cldo2,cldo3 note. */
+ vqmmc-supply = <&reg_aldo2>;
+ mmc-pwrseq = <&powerseq_wifi>;
+ status = "okay";
+};
+
+/* On-board eMMC card. */
+&mmc2 {
+ bus-width = <8>;
+ non-removable;
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc2_8bit_pins>;
+ vmmc-supply = <&reg_dcdce>;
+ status = "okay";
+};
+
+&osc32k {
+ clocks = <&ac100_rtc 0>;
+};
+
+&r_ir {
+ status = "okay";
+};
+
+&r_rsb {
+ status = "okay";
+
+ ac100: codec@e89 {
+ compatible = "x-powers,ac100";
+ reg = <0xe89>;
+
+ ac100_codec: codec {
+ compatible = "x-powers,ac100-codec";
+ interrupt-parent = <&r_pio>;
+ interrupts = <0 9 IRQ_TYPE_LEVEL_LOW>; /* PL9 */
+ #clock-cells = <0>;
+ clock-output-names = "4M_adda";
+ };
+
+ ac100_rtc: rtc {
+ compatible = "x-powers,ac100-rtc";
+ interrupt-parent = <&nmi_intc>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&ac100_codec>;
+ #clock-cells = <1>;
+ clock-output-names = "cko1_rtc",
+ "cko2_rtc",
+ "cko3_rtc";
+ };
+ };
+
+ pmic@745 {
+ compatible = "x-powers,axp808", "x-powers,axp806";
+ reg = <0x745>;
+ interrupt-parent = <&nmi_intc>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ swin-supply = <&reg_dcdce>;
+
+ /* In comments: Status taken from vendor sys_config1.fex. */
+ regulators {
+ /* 3.0 V (enabled). */
+ reg_aldo1: aldo1 {
+ regulator-boot-on;
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-name = "vcc-3v0-1";
+ };
+
+ /* 1.8 V (enabled). */
+ reg_aldo2: aldo2 {
+ regulator-boot-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3600000>;
+ regulator-name = "vcc-pg-pm-wifi+btio-audio";
+ };
+
+ /* 2.5 V (enabled). */
+ reg_aldo3: aldo3 {
+ regulator-boot-on;
+ regulator-min-microvolt = <2500000>;
+ regulator-max-microvolt = <2500000>;
+ regulator-name = "vcc-pa-gmac2v5";
+ };
+
+ /* 1.8 V (enabled). */
+ reg_bldo1: bldo1 {
+ regulator-boot-on;
+ regulator-always-on; /* Hang if disabled */
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-name = "vdd18-dll-vcc18-pll";
+ };
+
+ /* 0.9 V (enabled). */
+ reg_bldo2: bldo2 {
+ regulator-boot-on;
+ regulator-always-on; /* Hang if disabled */
+ regulator-min-microvolt = < 800000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-name = "vdd-cpus";
+ };
+
+ /* 1.2 V (disabled). */
+ reg_bldo3: bldo3 {
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-name = "vcc12-hsic";
+ };
+
+ /* 1.1 V (enabled). */
+ reg_bldo4: bldo4 {
+ regulator-boot-on;
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-name = "vdd09-hdmi";
+ };
+
+ /* 3.3 V (enabled). PLx pins control some regulators. */
+ reg_cldo1: cldo1 {
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-pl-led";
+ };
+
+ /*
+ * cldo2 and cldo3 are connected in parallel.
+ * There is currently no way to express that.
+ * For now, use regulator-always-on on cldo2 and lock
+ * the voltage on both to 3.3 V.
+ *
+ * 3.3 V (disabled).
+ */
+ reg_cldo2: cldo2 {
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vbat2-wifi+bt";
+ };
+
+ /* 3.3 V (disabled). */
+ reg_cldo3: cldo3 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vbat1-wifi+bt";
+ };
+
+ /* 0.9 V (enabled). */
+ reg_dcdca: dcdca {
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-min-microvolt = < 800000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-name = "vdd-cpua";
+ };
+
+ /* 1.5 V (enabled). */
+ reg_dcdcb: dcdcb {
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-name = "vcc-dram";
+ };
+
+ /* 0.9 V (disabled). */
+ reg_dcdcc: dcdcc {
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <900000>;
+ regulator-name = "vdd-gpu";
+ };
+
+ /* 0.9 V (enabled). */
+ reg_dcdcd: dcdcd {
+ regulator-boot-on;
+ regulator-always-on; /* Hang if disabled. */
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <900000>;
+ regulator-name = "vdd-sys";
+ };
+
+ /* 3.3 V (enabled). */
+ reg_dcdce: dcdce {
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-pb-pc-pd-pe-pf-ph-mmc-spdif";
+ };
+
+ /* 3.3 V (disabled). */
+ reg_sw: sw {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-gmac3v3";
+ };
+ };
+ };
+};
+
+/*
+ * 5-pin connector opposite of the SD card slot:
+ * 1 = GND (pointed to by small triangle), 2 = GND, 3 = 3.3 V, 4 = RX, 5 = TX.
+ */
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pins_a>;
+ status = "okay";
+};
+
+/* The port has two Vbus supplies. See workaround at regulator-usb1-1-vbus. */
+&usbphy1 {
+ phy-supply = <&reg_usb1_1_vbus>;
+ status = "okay";
+};
+
+&usbphy3 {
+ status = "okay";
+};
--
2.10.2