ARM: dts: add Netronix E60K02 board common file

The Netronix board E60K02 can be found some several Ebook-Readers,
at least the Kobo Clara HD and the Tolino Shine 3. The board
is equipped with different SoCs requiring different pinmuxes.

For now the following peripherals are included:
- LED
- Power Key
- Cover (gpio via hall sensor)
- RC5T619 PMIC (the kernel misses support for rtc and charger
  subdevices).
- Backlight via lm3630a
- Wifi sdio chip detection (mmc-powerseq and stuff)

It is based on vendor kernel but heavily reworked due to many
changed bindings.

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/e60k02.dtsi b/arch/arm/boot/dts/e60k02.dtsi
new file mode 100644 (file)
index 0000000..6472b05
--- /dev/null
+++ b/arch/arm/boot/dts/e60k02.dtsi
@@ -0,0 +1,306 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2019 Andreas Kemnade
+ * based on works
+ * Copyright 2016 Freescale Semiconductor, Inc.
+ * and
+ * Copyright (C) 2014 Ricoh Electronic Devices Co., Ltd
+ *
+ * Netronix E60K02 board common.
+ * This board is equipped with different SoCs and
+ * found in ebook-readers like the Kobo Clara HD (with i.MX6SLL) and
+ * the Tolino Shine 3 (with i.MX6SL)
+ */
+#include <dt-bindings/input/input.h>
+
+/ {
+
+       chosen {
+               stdout-path = &uart1;
+       };
+
+       gpio_keys: gpio-keys {
+               compatible = "gpio-keys";
+
+               power {
+                       label = "Power";
+                       gpios = <&gpio5 8 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_POWER>;
+                       wakeup-source;
+               };
+
+               cover {
+                       label = "Cover";
+                       gpios = <&gpio5 12 GPIO_ACTIVE_LOW>;
+                       linux,code = <SW_LID>;
+                       linux,input-type = <EV_SW>;
+                       wakeup-source;
+               };
+       };
+
+       leds: leds {
+               compatible = "gpio-leds";
+
+               on {
+                       label = "e60k02:white:on";
+                       gpios = <&gpio5 7 GPIO_ACTIVE_LOW>;
+                       linux,default-trigger = "timer";
+               };
+       };
+
+       memory {
+               reg = <0x80000000 0x20000000>;
+       };
+
+       reg_wifi: regulator-wifi {
+               compatible = "regulator-fixed";
+               regulator-name = "SD3_SPWR";
+               regulator-min-microvolt = <3000000>;
+               regulator-max-microvolt = <3000000>;
+               gpio = <&gpio4 29 GPIO_ACTIVE_HIGH>;
+               enable-active-high;
+       };
+
+       wifi_pwrseq: wifi_pwrseq {
+               compatible = "mmc-pwrseq-simple";
+               post-power-on-delay-ms = <20>;
+               reset-gpios = <&gpio5 0 GPIO_ACTIVE_LOW>;
+       };
+};
+
+
+&i2c1 {
+       clock-frequency = <100000>;
+       status = "okay";
+
+       lm3630a: backlight@36 {
+               reg = <0x36>;
+               compatible = "ti,lm3630a";
+               enable-gpios = <&gpio2 10 GPIO_ACTIVE_HIGH>;
+
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               led@0 {
+                       reg = <0>;
+                       led-sources = <0>;
+                       label = "backlight_warm";
+                       default-brightness = <0>;
+                       max-brightness = <255>;
+               };
+
+               led@1 {
+                       reg = <1>;
+                       led-sources = <1>;
+                       label = "backlight_cold";
+                       default-brightness = <0>;
+                       max-brightness = <255>;
+               };
+       };
+};
+
+&i2c2 {
+       clock-frequency = <100000>;
+       status = "okay";
+
+       /* TODO: CYTTSP5 touch controller at 0x24 */
+
+       /* TODO: TPS65185 PMIC for E Ink at 0x68 */
+
+};
+
+&i2c3 {
+       clock-frequency = <100000>;
+       status = "okay";
+
+       ricoh619: pmic@32 {
+               compatible = "ricoh,rc5t619";
+               reg = <0x32>;
+               system-power-controller;
+
+               regulators {
+                       dcdc1_reg: DCDC1 {
+                               regulator-name = "DCDC1";
+                               regulator-min-microvolt = <300000>;
+                               regulator-max-microvolt = <1875000>;
+                               regulator-always-on;
+                               regulator-boot-on;
+
+                               regulator-state-mem {
+                                       regulator-on-in-suspend;
+                                       regulator-suspend-max-microvolt = <900000>;
+                                       regulator-suspend-min-microvolt = <900000>;
+                               };
+                       };
+
+                       /* Core3_3V3 */
+                       dcdc2_reg: DCDC2 {
+                               regulator-name = "DCDC2";
+                               regulator-always-on;
+                               regulator-boot-on;
+
+                               regulator-state-mem {
+                                       regulator-on-in-suspend;
+                                       regulator-suspend-max-microvolt = <3300000>;
+                                       regulator-suspend-min-microvolt = <3300000>;
+                               };
+                       };
+
+                       dcdc3_reg: DCDC3 {
+                               regulator-name = "DCDC3";
+                               regulator-min-microvolt = <300000>;
+                               regulator-max-microvolt = <1875000>;
+                               regulator-always-on;
+                               regulator-boot-on;
+
+                               regulator-state-mem {
+                                       regulator-on-in-suspend;
+                                       regulator-suspend-max-microvolt = <1140000>;
+                                       regulator-suspend-min-microvolt = <1140000>;
+                               };
+                       };
+
+                       /* Core4_1V2 */
+                       dcdc4_reg: DCDC4 {
+                               regulator-name = "DCDC4";
+                               regulator-min-microvolt = <1200000>;
+                               regulator-max-microvolt = <1200000>;
+                               regulator-always-on;
+                               regulator-boot-on;
+
+                               regulator-state-mem {
+                                       regulator-on-in-suspend;
+                                       regulator-suspend-max-microvolt = <1140000>;
+                                       regulator-suspend-min-microvolt = <1140000>;
+                               };
+                       };
+
+                       /* Core4_1V8 */
+                       dcdc5_reg: DCDC5 {
+                               regulator-name = "DCDC5";
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <1800000>;
+                               regulator-always-on;
+                               regulator-boot-on;
+
+                               regulator-state-mem {
+                                       regulator-on-in-suspend;
+                                       regulator-suspend-max-microvolt = <1700000>;
+                                       regulator-suspend-min-microvolt = <1700000>;
+                               };
+                       };
+
+                       /* IR_3V3 */
+                       ldo1_reg: LDO1  {
+                               regulator-name = "LDO1";
+                               regulator-boot-on;
+                       };
+
+                       /* Core1_3V3 */
+                       ldo2_reg: LDO2  {
+                               regulator-name = "LDO2";
+                               regulator-always-on;
+                               regulator-boot-on;
+
+                               regulator-state-mem {
+                                       regulator-on-in-suspend;
+                                       regulator-suspend-max-microvolt = <3000000>;
+                                       regulator-suspend-min-microvolt = <3000000>;
+                               };
+                       };
+
+                       /* Core5_1V2 */
+                       ldo3_reg: LDO3  {
+                               regulator-name = "LDO3";
+                               regulator-always-on;
+                               regulator-boot-on;
+                       };
+
+                       ldo4_reg: LDO4 {
+                               regulator-name = "LDO4";
+                               regulator-boot-on;
+                       };
+
+                       /* SPD_3V3 */
+                       ldo5_reg: LDO5 {
+                               regulator-name = "LDO5";
+                               regulator-always-on;
+                               regulator-boot-on;
+                       };
+
+                       /* DDR_0V6 */
+                       ldo6_reg: LDO6 {
+                               regulator-name = "LDO6";
+                               regulator-always-on;
+                               regulator-boot-on;
+                       };
+
+                       /* VDD_PWM */
+                       ldo7_reg: LDO7 {
+                               regulator-name = "LDO7";
+                               regulator-always-on;
+                               regulator-boot-on;
+                       };
+
+                       /* ldo_1v8 */
+                       ldo8_reg: LDO8 {
+                               regulator-name = "LDO8";
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <1800000>;
+                               regulator-always-on;
+                               regulator-boot-on;
+                       };
+
+                       ldo9_reg: LDO9 {
+                               regulator-name = "LDO9";
+                               regulator-boot-on;
+                       };
+
+                       ldo10_reg: LDO10 {
+                               regulator-name = "LDO10";
+                               regulator-boot-on;
+                       };
+
+                       ldortc1_reg: LDORTC1  {
+                               regulator-name = "LDORTC1";
+                               regulator-boot-on;
+                       };
+
+                       ldortc2_reg: LDORTC2 {
+                               regulator-name = "LDORTC2";
+                               regulator-boot-on;
+                       };
+               };
+       };
+};
+
+&snvs_rtc {
+       /* we are using the rtc in the pmic, not disabled in imx6sll.dtsi */
+       status = "disabled";
+};
+
+&uart1 {
+       status = "okay";
+};
+
+&usdhc2 {
+       non-removable;
+       status = "okay";
+};
+
+&usdhc3 {
+       vmmc-supply = <&reg_wifi>;
+       mmc-pwrseq = <&wifi_pwrseq>;
+       cap-power-off-card;
+       non-removable;
+       status = "okay";
+};
+
+&usbotg1 {
+       pinctrl-names = "default";
+       disable-over-current;
+       srp-disable;
+       hnp-disable;
+       adp-disable;
+       status = "okay";
+};