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ARM: dts: am437x: cm-t43: add basic support for sbc-t43 

Add basic support for SBC-T43: a CM-T43 based single board computer.
CM-T43 is an AM437x based System-on-Module designed to serve as a building
block in embedded applications. SBC-T43 is composed of CM-T43 module on
top of the SB-SOM-T43 baseboard.
Basic support includes UART, GPIO, and I2C.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Acked-by: Rob Herring <robh@kernel.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Benoit Cousson <bcousson@baylibre.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Dmitry Lifshitz <lifshitz@compulab.co.il>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
hifive-unleashed-5.1
Nikita Kiryanov 2015-12-01 15:54:56 +02:00 committed by Tony Lindgren
parent 317d15679a
commit 686c47f130
4 changed files with 156 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
Documentation/devicetree/bindings/arm/omap/omap.txt
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@ -144,6 +144,12 @@ Boards:
- OMAP5 EVM : Evaluation Module
compatible = "ti,omap5-evm", "ti,omap5"
- AM437x CM-T43
compatible = "compulab,am437x-cm-t43", "ti,am4372", "ti,am43"
- AM437x SBC-T43
compatible = "compulab,am437x-sbc-t43", "compulab,am437x-cm-t43", "ti,am4372", "ti,am43"
- AM43x EPOS EVM
compatible = "ti,am43x-epos-evm", "ti,am4372", "ti,am43"

6
arch/arm/boot/dts/Makefile
View File

@ -480,9 +480,11 @@ dtb-$(CONFIG_ARCH_OMAP4) += \
omap4-var-stk-om44.dtb
dtb-$(CONFIG_SOC_AM43XX) += \
am43x-epos-evm.dtb \
am437x-sk-evm.dtb \
am437x-cm-t43.dtb \
am437x-gp-evm.dtb \
am437x-idk-evm.dtb \
am437x-gp-evm.dtb
am437x-sbc-t43.dtb \
am437x-sk-evm.dtb
dtb-$(CONFIG_SOC_OMAP5) += \
omap5-cm-t54.dtb \
omap5-igep0050.dtb \

90
arch/arm/boot/dts/am437x-cm-t43.dts 100644
View File

@ -0,0 +1,90 @@
/*
* Copyright (C) 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 <dt-bindings/pinctrl/am43xx.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include "am4372.dtsi"
/ {
model = "CompuLab CM-T43";
compatible = "compulab,am437x-cm-t43", "ti,am4372", "ti,am43";
leds {
compatible = "gpio-leds";
ledb {
label = "cm-t43:green";
gpios = <&gpio0 24 GPIO_ACTIVE_HIGH>;
linux,default-trigger = "heartbeat";
};
};
};
&am43xx_pinmux {
pinctrl-names = "default";
pinctrl-0 = <&cm_t43_led_pins>;
cm_t43_led_pins: cm_t43_led_pins {
pinctrl-single,pins = <
AM4372_IOPAD(0xa78, MUX_MODE7)
>;
};
i2c0_pins: i2c0_pins {
pinctrl-single,pins = <
AM4372_IOPAD(0x988, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0) /* i2c0_sda.i2c0_sda */
AM4372_IOPAD(0x98c, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0) /* i2c0_scl.i2c0_scl */
>;
};
};
&i2c0 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins>;
clock-frequency = <100000>;
};
&gpio0 {
status = "okay";
};
&gpio1 {
status = "okay";
};
&gpio2 {
status = "okay";
};
&gpio3 {
status = "okay";
};
&gpio4 {
status = "okay";
};
&gpio5 {
status = "okay";
};
&uart0 {
status = "okay";
};
&cpu {
operating-points = <1000000 1330000>,
<800000 1260000>,
<720000 1200000>,
<600000 1100000>,
<300000 950000>;
};

56
arch/arm/boot/dts/am437x-sbc-t43.dts 100644
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@ -0,0 +1,56 @@
/*
* Copyright (C) 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.
*/
#include "am437x-cm-t43.dts"
/ {
model = "CompuLab CM-T43 on SB-SOM-T43";
compatible = "compulab,am437x-sbc-t43", "compulab,am437x-cm-t43", "ti,am4372", "ti,am43";
};
&am43xx_pinmux {
uart0_pins_default: uart0_pins_default {
pinctrl-single,pins = <
AM4372_IOPAD(0x968, DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE0)
AM4372_IOPAD(0x96C, DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE0)
AM4372_IOPAD(0x970, PIN_INPUT_PULLUP | SLEWCTRL_FAST | DS0_PULL_UP_DOWN_EN | MUX_MODE0) /* uart0_rxd.uart0_rxd */
AM4372_IOPAD(0x974, PIN_INPUT | PULL_DISABLE | SLEWCTRL_FAST | DS0_PULL_UP_DOWN_EN | MUX_MODE0) /* uart0_txd.uart0_txd */
>;
};
i2c1_pins: i2c1_pins {
pinctrl-single,pins = <
AM4372_IOPAD(0xa6c, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE1) /* spi2_cs0.i2c1_sda */
AM4372_IOPAD(0xa60, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE1) /* spi2_sclk.i2c1_scl */
>;
};
i2c2_pins: i2c2_pins {
pinctrl-single,pins = <
AM4372_IOPAD(0x978, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE3) /* uart1_ctsn.i2c2_sda */
AM4372_IOPAD(0x97c, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE3) /* uart1_rtsn.i2c2_scl */
>;
};
};
&i2c1 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&i2c1_pins>;
};
&i2c2 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&i2c2_pins>;
};
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins_default>;
};