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ARM: dts: overo: Create a file for common Gumstix peripherals Gumstix expansion boards share a couple of peripherals: - uart3 is used for the console - AT24C01 EEPROM on i2c3 Use this file for overo-tobi. Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-03-11 20:20:29 +08:00
/*
* Copyright (C) 2014 Florian Vaussard, EPFL Mobots group
*
* 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.
*/
/*
* Peripherals common to all Gumstix Overo boards (Tobi, Summit, Palo43,...)
*/
ARM: dts: overo: Add LIS33DE accelerometer The LIS33DE accelerometer is used on several Gumstix expansion boards, thus add the DT node to omap3-overo-common-peripherals.dtsi. For the boards that do not have the accelerometer (like Tobi), mark the status as disabled. Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-03-11 20:20:30 +08:00
/ {
lis33_3v3: lis33-3v3-reg {
compatible = "regulator-fixed";
regulator-name = "lis33-3v3-reg";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
lis33_1v8: lis33-1v8-reg {
compatible = "regulator-fixed";
regulator-name = "lis33-1v8-reg";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
};
ARM: dts: overo: Create a file for common Gumstix peripherals Gumstix expansion boards share a couple of peripherals: - uart3 is used for the console - AT24C01 EEPROM on i2c3 Use this file for overo-tobi. Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-03-11 20:20:29 +08:00
&omap3_pmx_core {
i2c3_pins: pinmux_i2c3_pins {
pinctrl-single,pins = <
OMAP3_CORE1_IOPAD(0x21c2, PIN_INPUT | MUX_MODE0) /* i2c3_scl.i2c3_scl */
OMAP3_CORE1_IOPAD(0x21c4, PIN_INPUT | MUX_MODE0) /* i2c3_sda.i2c3_sda */
>;
};
uart3_pins: pinmux_uart3_pins {
pinctrl-single,pins = <
ARM: dts: omap3-overo: Fix UART wake-up events Compared to legacy booting, we don't have wake-up events enabled for device tree based booting. This means that if deeper idle states are enabled, the device won't wake up to UART events and seems like it has hung. Let's fix that by adding the wake-up interrupt. Note that we don't need to set the PIN_OFF_WAKEUPENABLE any longer, that's handled by the wake-up interrupt when the serial driver does request_irq on it. Tested with the following on omap3-overo-summit that has the ES2.1 omap: #!/bin/bash uarts=$(find /sys/class/tty/ttyO*/device/power/ -type d) for uart in $uarts; do echo 3000 > $uart/autosuspend_delay_ms done uarts=$(find /sys/class/tty/ttyO*/power/ -type d) for uart in $uarts; do echo enabled > $uart/wakeup echo auto > $uart/control done echo 1 > /sys/kernel/debug/pm_debug/enable_off_mode # grep -i uart /proc/interrupts 90: 1085 INTC 74 OMAP UART2 338: 5 pinctrl 366 OMAP UART2 # grep ^core_pwrdm /sys/kernel/debug/pm_debug/count core_pwrdm (ON),OFF:1654,RET:131,INA:39,ON:1825... Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-19 00:03:36 +08:00
OMAP3_CORE1_IOPAD(0x219e, PIN_INPUT | MUX_MODE0) /* uart3_rx_irrx.uart3_rx_irrx */
OMAP3_CORE1_IOPAD(0x21a0, PIN_OUTPUT | MUX_MODE0) /* uart3_tx_irtx.uart3_tx_irtx */
ARM: dts: overo: Create a file for common Gumstix peripherals Gumstix expansion boards share a couple of peripherals: - uart3 is used for the console - AT24C01 EEPROM on i2c3 Use this file for overo-tobi. Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-03-11 20:20:29 +08:00
>;
};
};
&i2c3 {
pinctrl-names = "default";
pinctrl-0 = <&i2c3_pins>;
clock-frequency = <100000>;
/* optional 1K EEPROM with revision information */
eeprom@51 {
compatible = "atmel,24c01";
reg = <0x51>;
pagesize = <8>;
};
ARM: dts: overo: Add LIS33DE accelerometer The LIS33DE accelerometer is used on several Gumstix expansion boards, thus add the DT node to omap3-overo-common-peripherals.dtsi. For the boards that do not have the accelerometer (like Tobi), mark the status as disabled. Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-03-11 20:20:30 +08:00
lis33de: lis33de@1d {
compatible = "st,lis33de", "st,lis3lv02d";
reg = <0x1d>;
Vdd-supply = <&lis33_1v8>;
Vdd_IO-supply = <&lis33_3v3>;
st,click-single-x;
st,click-single-y;
st,click-single-z;
st,click-thresh-x = <10>;
st,click-thresh-y = <10>;
st,click-thresh-z = <10>;
st,irq1-click;
st,irq2-click;
st,wakeup-x-lo;
st,wakeup-x-hi;
st,wakeup-y-lo;
st,wakeup-y-hi;
st,wakeup-z-lo;
st,wakeup-z-hi;
st,min-limit-x = <120>;
st,min-limit-y = <120>;
st,min-limit-z = <140>;
st,max-limit-x = <550>;
st,max-limit-y = <550>;
st,max-limit-z = <750>;
};
ARM: dts: overo: Create a file for common Gumstix peripherals Gumstix expansion boards share a couple of peripherals: - uart3 is used for the console - AT24C01 EEPROM on i2c3 Use this file for overo-tobi. Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-03-11 20:20:29 +08:00
};
&mmc3 {
status = "disabled";
};
&uart3 {
ARM: dts: omap3-overo: Fix UART wake-up events Compared to legacy booting, we don't have wake-up events enabled for device tree based booting. This means that if deeper idle states are enabled, the device won't wake up to UART events and seems like it has hung. Let's fix that by adding the wake-up interrupt. Note that we don't need to set the PIN_OFF_WAKEUPENABLE any longer, that's handled by the wake-up interrupt when the serial driver does request_irq on it. Tested with the following on omap3-overo-summit that has the ES2.1 omap: #!/bin/bash uarts=$(find /sys/class/tty/ttyO*/device/power/ -type d) for uart in $uarts; do echo 3000 > $uart/autosuspend_delay_ms done uarts=$(find /sys/class/tty/ttyO*/power/ -type d) for uart in $uarts; do echo enabled > $uart/wakeup echo auto > $uart/control done echo 1 > /sys/kernel/debug/pm_debug/enable_off_mode # grep -i uart /proc/interrupts 90: 1085 INTC 74 OMAP UART2 338: 5 pinctrl 366 OMAP UART2 # grep ^core_pwrdm /sys/kernel/debug/pm_debug/count core_pwrdm (ON),OFF:1654,RET:131,INA:39,ON:1825... Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-19 00:03:36 +08:00
interrupts-extended = <&intc 74 &omap3_pmx_core OMAP3_UART3_RX>;
ARM: dts: overo: Create a file for common Gumstix peripherals Gumstix expansion boards share a couple of peripherals: - uart3 is used for the console - AT24C01 EEPROM on i2c3 Use this file for overo-tobi. Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-03-11 20:20:29 +08:00
pinctrl-names = "default";
pinctrl-0 = <&uart3_pins>;
};