231 lines
5.1 KiB
Diff
231 lines
5.1 KiB
Diff
From a189771546b304250cf18b26748edfefb857adbf Mon Sep 17 00:00:00 2001
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From: Rahul Bedarkar <rahul.bedarkar@imgtec.com>
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Date: Fri, 14 Oct 2016 11:25:55 +0530
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Subject: MIPS: DTS: img: add device tree for Marduk board
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Add support for Imagination Technologies' Marduk board which is based
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on Pistachio SoC. It is also known as Creator Ci40. Marduk is legacy
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name and will be there for decades.
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Documentation for this board can be found on
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https://docs.creatordev.io/ci40/
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This patch adds initial support for board with following peripherals:
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* PWM based heartbeat LED
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* GPIO based buttons
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* SPI NOR flash on SPI1
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* UART0 and UART1
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* SD card
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* Ethernet
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* USB
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* PWM
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* ADC
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* I2C
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(apply from https://patchwork.linux-mips.org/project/linux-mips/list/?submitter=7165)
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Signed-off-by: Rahul Bedarkar <rahul.bedarkar@imgtec.com>
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Acked-by: Rob Herring <robh@kernel.org>
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Acked-by: James Hartley <james.hartley@imgtec.com>
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---
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.../bindings/mips/img/pistachio-marduk.txt | 10 ++
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arch/mips/boot/dts/img/Makefile | 9 ++
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arch/mips/boot/dts/img/pistachio_marduk.dts | 163 +++++++++++++++++++++
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3 files changed, 182 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/mips/img/pistachio-marduk.txt
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create mode 100644 arch/mips/boot/dts/img/Makefile
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create mode 100644 arch/mips/boot/dts/img/pistachio_marduk.dts
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/mips/img/pistachio-marduk.txt
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@@ -0,0 +1,10 @@
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+Imagination Technologies' Pistachio SoC based Marduk Board
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+==========================================================
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+
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+Compatible string must be "img,pistachio-marduk", "img,pistachio"
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+
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+Hardware and other related documentation is available at
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+https://docs.creatordev.io/ci40/
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+
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+It is also known as Creator Ci40. Marduk is legacy name and will
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+be there for decades.
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--- /dev/null
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+++ b/arch/mips/boot/dts/img/Makefile
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@@ -0,0 +1,9 @@
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+dtb-$(CONFIG_MACH_PISTACHIO) += pistachio_marduk.dtb
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+
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+obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
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+
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+# Force kbuild to make empty built-in.o if necessary
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+obj- += dummy.o
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+
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+always := $(dtb-y)
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+clean-files := *.dtb *.dtb.S
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--- /dev/null
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+++ b/arch/mips/boot/dts/img/pistachio_marduk.dts
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@@ -0,0 +1,163 @@
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+/*
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+ * Copyright (C) 2015, 2016 Imagination Technologies Ltd.
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License version 2 as
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+ * published by the Free Software Foundation.
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+ *
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+ * IMG Marduk board is also known as Creator Ci40.
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+ */
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+
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+/dts-v1/;
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+
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+#include "pistachio.dtsi"
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+
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+/ {
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+ model = "IMG Marduk (Creator Ci40)";
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+ compatible = "img,pistachio-marduk", "img,pistachio";
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+
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+ aliases {
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+ serial0 = &uart0;
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+ serial1 = &uart1;
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+ ethernet0 = &enet;
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+ spi0 = &spfi0;
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+ spi1 = &spfi1;
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+ };
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+
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+ chosen {
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+ bootargs = "root=/dev/sda1 rootwait ro lpj=723968";
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+ stdout-path = "serial1:115200";
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+ };
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+
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+ memory {
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+ device_type = "memory";
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+ reg = <0x00000000 0x10000000>;
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+ };
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+
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+ reg_1v8: fixed-regulator {
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+ compatible = "regulator-fixed";
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+ regulator-name = "aux_adc_vref";
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+ regulator-min-microvolt = <1800000>;
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+ regulator-max-microvolt = <1800000>;
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+ regulator-boot-on;
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+ };
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+
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+ internal_dac_supply: internal-dac-supply {
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+ compatible = "regulator-fixed";
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+ regulator-name = "internal_dac_supply";
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+ regulator-min-microvolt = <1800000>;
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+ regulator-max-microvolt = <1800000>;
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+ };
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+
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+ leds {
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+ compatible = "pwm-leds";
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+ heartbeat {
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+ label = "marduk:red:heartbeat";
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+ pwms = <&pwm 3 300000>;
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+ max-brightness = <255>;
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+ linux,default-trigger = "heartbeat";
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+ };
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+ };
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+
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+ keys {
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+ compatible = "gpio-keys";
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+ button@1 {
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+ label = "Button 1";
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+ linux,code = <0x101>; /* BTN_1 */
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+ gpios = <&gpio3 6 GPIO_ACTIVE_LOW>;
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+ };
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+ button@2 {
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+ label = "Button 2";
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+ linux,code = <0x102>; /* BTN_2 */
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+ gpios = <&gpio2 14 GPIO_ACTIVE_LOW>;
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+ };
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+ };
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+};
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+
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+&internal_dac {
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+ VDD-supply = <&internal_dac_supply>;
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+};
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+
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+&spfi1 {
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+ status = "okay";
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+
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+ pinctrl-0 = <&spim1_pins>, <&spim1_quad_pins>, <&spim1_cs0_pin>,
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+ <&spim1_cs1_pin>;
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+ pinctrl-names = "default";
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+ cs-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>, <&gpio0 1 GPIO_ACTIVE_HIGH>;
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+
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+ flash@0 {
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+ compatible = "spansion,s25fl016k", "jedec,spi-nor";
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+ reg = <0>;
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+ spi-max-frequency = <50000000>;
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+ };
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+};
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+
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+&uart0 {
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+ status = "okay";
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+ assigned-clock-rates = <114278400>, <1843200>;
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+};
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+
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+&uart1 {
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+ status = "okay";
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+};
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+
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+&usb {
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+ status = "okay";
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+};
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+
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+&enet {
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+ status = "okay";
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+};
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+
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+&pin_enet {
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+ drive-strength = <2>;
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+};
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+
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+&pin_enet_phy_clk {
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+ drive-strength = <2>;
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+};
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+
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+&sdhost {
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+ status = "okay";
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+ bus-width = <4>;
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+ disable-wp;
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+};
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+
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+&pin_sdhost_cmd {
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+ drive-strength = <2>;
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+};
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+
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+&pin_sdhost_data {
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+ drive-strength = <2>;
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+};
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+
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+&pwm {
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+ status = "okay";
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+
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+ pinctrl-0 = <&pwmpdm0_pin>, <&pwmpdm1_pin>, <&pwmpdm2_pin>,
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+ <&pwmpdm3_pin>;
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+ pinctrl-names = "default";
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+};
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+
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+&adc {
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+ status = "okay";
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+ vref-supply = <®_1v8>;
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+ adc-reserved-channels = <0x10>;
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+};
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+
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+&i2c2 {
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+ status = "okay";
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+ clock-frequency = <400000>;
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+
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+ tpm@20 {
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+ compatible = "infineon,slb9645tt";
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+ reg = <0x20>;
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+ };
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+
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+};
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+
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+&i2c3 {
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+ status = "okay";
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+ clock-frequency = <400000>;
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+};
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