[PATCH v2 1/6] ARM: OMAP2+: dts: cm-t335: add initial support
Uri Mashiach
uri.mashiach at compulab.co.il
Tue Nov 24 06:02:08 PST 2015
From: Ilya Ledvich <ilya at compulab.co.il>
Add basic support for CompuLab cm-t335 module based on AM335X SoC.
CM-T335 is a tiny computer-on-module (CoM) / system-on-module (SoM)
The module is built around the Texas Instruments Sitara AM3352/4
system-on-chip.
The CPU is supplemented with up-to 512MB DDR3 and up-to 1GB of on-board
NAND storage, WiFi connected to SPI, Bluetooth, Analog audio, Gigabit
Ethernet, CAN bus.
Current patch adds support:
UART0 and GPIO LED
Detailed description can be found at the module site:
http://www.compulab.co.il/products/computer-on-modules/cm-t335/
Signed-off-by: Ilya Ledvich <ilya at compulab.co.il>
[uri.mashiach at compulab.co.il: the default RAM amount reduced to
128MB to support also the minimal module configuration]
Signed-off-by: Uri Mashiach <uri.mashiach at compulab.co.il>
Acked-by: Igor Grinberg <grinberg at compulab.co.il>
---
v1 -> v2: integrate AM33XX_IOPAD macro in pinmux definitions
.../devicetree/bindings/arm/omap/omap.txt | 3 ++
arch/arm/boot/dts/Makefile | 7 +--
arch/arm/boot/dts/am335x-cm-t335.dts | 63 ++++++++++++++++++++++
3 files changed, 70 insertions(+), 3 deletions(-)
create mode 100644 arch/arm/boot/dts/am335x-cm-t335.dts
diff --git a/Documentation/devicetree/bindings/arm/omap/omap.txt b/Documentation/devicetree/bindings/arm/omap/omap.txt
index 9f4e513..2154f97 100644
--- a/Documentation/devicetree/bindings/arm/omap/omap.txt
+++ b/Documentation/devicetree/bindings/arm/omap/omap.txt
@@ -138,6 +138,9 @@ Boards:
- AM335X phyBOARD-WEGA: Single Board Computer dev kit
compatible = "phytec,am335x-wega", "phytec,am335x-phycore-som", "ti,am33xx"
+- AM335X CM-T335 : System On Module, built around the Sitara AM3352/4
+ compatible = "compulab,cm-t335", "ti,am33xx"
+
- OMAP5 EVM : Evaluation Module
compatible = "ti,omap5-evm", "ti,omap5"
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index bb8fa02..0e011dc 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -446,13 +446,14 @@ dtb-$(CONFIG_SOC_AM33XX) += \
am335x-base0033.dtb \
am335x-bone.dtb \
am335x-boneblack.dtb \
- am335x-sl50.dtb \
+ am335x-chiliboard.dtb \
+ am335x-cm-t335.dtb \
am335x-evm.dtb \
am335x-evmsk.dtb \
+ am335x-lxm.dtb \
am335x-nano.dtb \
am335x-pepper.dtb \
- am335x-lxm.dtb \
- am335x-chiliboard.dtb \
+ am335x-sl50.dtb \
am335x-wega-rdk.dtb
dtb-$(CONFIG_ARCH_OMAP4) += \
omap4-duovero-parlor.dtb \
diff --git a/arch/arm/boot/dts/am335x-cm-t335.dts b/arch/arm/boot/dts/am335x-cm-t335.dts
new file mode 100644
index 0000000..719658e
--- /dev/null
+++ b/arch/arm/boot/dts/am335x-cm-t335.dts
@@ -0,0 +1,63 @@
+/*
+ * am335x-cm-t335.dts - Device Tree file for Compulab CM-T335
+ *
+ * Copyright (C) 2014 - 2015 CompuLab Ltd. - http://www.compulab.co.il/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/dts-v1/;
+
+#include "am33xx.dtsi"
+
+/ {
+ model = "CompuLab CM-T335";
+ compatible = "compulab,cm-t335", "ti,am33xx";
+
+ memory {
+ device_type = "memory";
+ reg = <0x80000000 0x8000000>; /* 128 MB */
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio_led_pins>;
+ led at 0 {
+ label = "cm_t335:green";
+ gpios = <&gpio2 0 GPIO_ACTIVE_LOW>; /* gpio2_0 */
+ linux,default-trigger = "heartbeat";
+ };
+ };
+};
+
+&am33xx_pinmux {
+ pinctrl-names = "default";
+ pinctrl-0 = <>;
+
+ gpio_led_pins: pinmux_gpio_led_pins {
+ pinctrl-single,pins = <
+ /* gpmc_csn3.gpio2_0 */
+ AM33XX_IOPAD(0x888, PIN_OUTPUT | MUX_MODE7)
+ >;
+ };
+
+ uart0_pins: pinmux_uart0_pins {
+ pinctrl-single,pins = <
+ /* uart0_rxd.uart0_rxd */
+ AM33XX_IOPAD(0x970, PIN_INPUT_PULLUP | MUX_MODE0)
+ /* uart0_txd.uart0_txd */
+ AM33XX_IOPAD(0x974, PIN_OUTPUT_PULLDOWN | MUX_MODE0)
+ >;
+ };
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pins>;
+
+ status = "okay";
+};
+
--
2.5.0
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