[PATCH v4 1/2] ARM: digicolor: add minimal device tree description
Baruch Siach
baruch at tkos.co.il
Wed Jan 28 14:04:10 PST 2015
cx92755.dtsi describes CX92755 on chip peripherals. cx92755_equinox.dts
describes the Equinox evaluation board for the CX92755 SoC.
Acked-by: Arnd Bergmann <arnd at arndb.de>
Signed-off-by: Baruch Siach <baruch at tkos.co.il>
---
This is the only remaining part of the "ARM: Conexant Digicolor CX92755 SoC
support" series. See v3 changelog at
http://article.gmane.org/gmane.linux.kernel/1865896.
v4:
* Rename conexant_equinox.dts to cx92755_equinox.dts which is closer to
common practice (Olof Johansson)
* Add a syscon node; this is now required for the interrupt controller
* Decrease the registers range in the interrupt controller node to just the
IC registers range. We now use syscon to access the global UC_IRQ_CONTROL
register.
* Rename the interrupt controller node to "interrupt-controller" as per
ePAPR
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/cx92755.dtsi | 113 ++++++++++++++++++++++++++++++++++
arch/arm/boot/dts/cx92755_equinox.dts | 74 ++++++++++++++++++++++
3 files changed, 188 insertions(+)
create mode 100644 arch/arm/boot/dts/cx92755.dtsi
create mode 100644 arch/arm/boot/dts/cx92755_equinox.dts
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 91bd5bd62857..71c69a271791 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -75,6 +75,7 @@ dtb-$(CONFIG_ARCH_BRCMSTB) += \
bcm7445-bcm97445svmb.dtb
dtb-$(CONFIG_ARCH_DAVINCI) += da850-enbw-cmc.dtb \
da850-evm.dtb
+dtb-$(CONFIG_ARCH_DIGICOLOR) += cx92755_equinox.dtb
dtb-$(CONFIG_ARCH_EFM32) += efm32gg-dk3750.dtb
dtb-$(CONFIG_ARCH_EXYNOS) += exynos3250-monk.dtb \
exynos3250-rinato.dtb \
diff --git a/arch/arm/boot/dts/cx92755.dtsi b/arch/arm/boot/dts/cx92755.dtsi
new file mode 100644
index 000000000000..490c08075e67
--- /dev/null
+++ b/arch/arm/boot/dts/cx92755.dtsi
@@ -0,0 +1,113 @@
+/*
+ * Device Tree Include file for the Conexant Digicolor CX92755 SoC
+ *
+ * Author: Baruch Siach <baruch at tkos.co.il>
+ *
+ * Copyright (C) 2014 Paradox Innovation Ltd.
+ *
+ * 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.
+ */
+
+#include "skeleton.dtsi"
+
+/ {
+ compatible = "cnxt,cx92755";
+
+ interrupt-parent = <&intc>;
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ cpu at 0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a8";
+ reg = <0x0>;
+ };
+ };
+
+ main_clk: main_clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <200000000>;
+ };
+
+ intc: interrupt-controller at f0000040 {
+ compatible = "cnxt,cx92755-ic";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ reg = <0xf0000040 0x40>;
+ syscon = <&uc_regs>;
+ };
+
+ timer at f0000fc0 {
+ compatible = "cnxt,cx92755-timer";
+ reg = <0xf0000fc0 0x40>;
+ interrupts = <19>, <31>, <34>, <35>, <52>, <53>, <54>, <55>;
+ clocks = <&main_clk>;
+ };
+
+ uc_regs: syscon at f00003a0 {
+ compatible = "cnxt,cx92755-uc", "syscon";
+ reg = <0xf00003a0 0x10>;
+ };
+
+ uart0: uart at f0000740 {
+ compatible = "cnxt,cx92755-usart";
+ reg = <0xf0000740 0x20>;
+ clocks = <&main_clk>;
+ interrupts = <44>;
+ status = "disabled";
+ };
+
+ uart1: uart at f0000760 {
+ compatible = "cnxt,cx92755-usart";
+ reg = <0xf0000760 0x20>;
+ clocks = <&main_clk>;
+ interrupts = <45>;
+ status = "disabled";
+ };
+
+ uart2: uart at f0000780 {
+ compatible = "cnxt,cx92755-usart";
+ reg = <0xf0000780 0x20>;
+ clocks = <&main_clk>;
+ interrupts = <46>;
+ status = "disabled";
+ };
+};
diff --git a/arch/arm/boot/dts/cx92755_equinox.dts b/arch/arm/boot/dts/cx92755_equinox.dts
new file mode 100644
index 000000000000..f33bf5635d47
--- /dev/null
+++ b/arch/arm/boot/dts/cx92755_equinox.dts
@@ -0,0 +1,74 @@
+/*
+ * Device Tree file for the Conexant Equinox CX92755 EVK
+ *
+ * Author: Baruch Siach <baruch at tkos.co.il>
+ *
+ * Copyright (C) 2014 Paradox Innovation Ltd.
+ *
+ * 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 "cx92755.dtsi"
+
+/ {
+ model = "Conexant Equinox CX92755 EVK";
+ compatible = "cnxt,equinox", "cnxt,cx92755";
+
+ aliases {
+ serial0 = &uart0;
+ serial1 = &uart1;
+ serial2 = &uart2;
+ };
+
+ memory at 0 {
+ reg = <0 0x8000000>;
+ device_type = "memory";
+ };
+
+ chosen {
+ bootargs = "console=ttyS0,115200";
+ stdout-path = &uart0;
+ };
+};
+
+&uart0 {
+ status = "okay";
+};
--
2.1.4
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