From 058c0c1a441e9518ae4de207997a9b43380528ce Mon Sep 17 00:00:00 2001 From: Afzal Mohammed Date: Sun, 25 Oct 2015 23:20:56 +0530 Subject: [PATCH] ARM: dts: vf6xx: Cosmic+: M4(nommu) initial support Minimal Cortex-M4 device tree to boot Linux to shell. M4 is booted via Cortex-A5 running Linux using Stefan Agner's "m4boot" utility. Signed-off-by: Afzal Mohammed Acked-by: Stefan Agner Signed-off-by: Shawn Guo --- arch/arm/boot/dts/Makefile | 1 + arch/arm/boot/dts/vf610m4-cosmic.dts | 90 ++++++++++++++++++++++++++++ 2 files changed, 91 insertions(+) create mode 100644 arch/arm/boot/dts/vf610m4-cosmic.dts diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 30bbc3746130..9b00aa998dda 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -359,6 +359,7 @@ dtb-$(CONFIG_SOC_VF610) += \ vf610-colibri-eval-v3.dtb \ vf610m4-colibri.dtb \ vf610-cosmic.dtb \ + vf610m4-cosmic.dtb \ vf610-twr.dtb dtb-$(CONFIG_ARCH_MXS) += \ imx23-evk.dtb \ diff --git a/arch/arm/boot/dts/vf610m4-cosmic.dts b/arch/arm/boot/dts/vf610m4-cosmic.dts new file mode 100644 index 000000000000..8944a2d2054c --- /dev/null +++ b/arch/arm/boot/dts/vf610m4-cosmic.dts @@ -0,0 +1,90 @@ +/* + * Device tree for Cosmic+ VF6xx Cortex-M4 support + * + * Copyright (C) 2015 + * + * Based on vf610m4 Colibri + * + * 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 , 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 "vf610m4.dtsi" + +/ { + model = "VF610 Cortex-M4"; + compatible = "fsl,vf610m4"; +}; + +&gpio0 { + status = "disabled"; +}; + +&gpio1 { + status = "disabled"; +}; + +&gpio2 { + status = "disabled"; +}; + +&gpio3 { + status = "disabled"; +}; + +&gpio4 { + status = "disabled"; +}; + +&uart3 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_uart3>; + status = "okay"; +}; + +&iomuxc { + vf610-cosmic { + pinctrl_uart3: uart3grp { + fsl,pins = < + VF610_PAD_PTA20__UART3_TX 0x21a2 + VF610_PAD_PTA21__UART3_RX 0x21a1 + >; + }; + }; +};