AM437x GP EVM GPIO toggle fails

nilesh kadivar

Other Parts Discussed in Thread: TPS65218

Hi,

I am using TI's AM437x EVM. My am437x-gp-evm.dts file is as below.

gpio0_pins: gpio0_pins {
        pinctrl-single,pins = <
            0x1ac ( PIN_INPUT | MUX_MODE9 ) /* MCASP0_AHCLKX.gpio0[3] ZIG_JTAG_TD */
            0x1a8 ( PIN_OUTPUT | MUX_MODE9 ) /* mcasp0_axr1.gpio0[2] ZIG_JTAG_TCK */
            0x1a4 ( PIN_OUTPUT | MUX_MODE9 ) /* MCASP0_FSR.gpio0[19] ZIGBEE_RESET_AM437x */
        >;
    };

&gpio0 {
    pinctrl-names = "default";
    pinctrl-0 = <&gpio0_pins>;
    status = "okay";
};

Now when System gets boot I am using below commands for gpio high and low but output does not get reflected on CRO.

echo 19 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio19/direction
echo 1 > /sys/class/gpio/gpio19/value
echo 0 > /sys/class/gpio/gpio19/value

Output is same in case of high and low of pin.

Is there anythnig that I am missing?

Regards,

Nilesh Kadivar

over 8 years ago

0 Biser Gatchev-XID over 8 years ago

TI__Guru**** 393215 points

The software team have been notified. They will respond here.

0 Yordan Kovachev over 8 years ago

TI__Guru**** 161600 points

Hi,

Have a look at this thread:
e2e.ti.com/.../495548

Best Regards,
Yordan

0 nilesh kadivar over 8 years ago in reply to Yordan Kovachev

Intellectual 940 points

Hi Yordan,

Thanks for your reply.

I have tried as you mentioned in above link but still not works me. My sysfs details are as below. GPIO I have used is

0x1ac ( PIN_INPUT | MUX_MODE9 ) /* MCASP0_AHCLKX.gpio0[3] ZIG_JTAG_TD */
0x1a8 ( PIN_OUTPUT | MUX_MODE9 ) /* mcasp0_axr1.gpio0[2] ZIG_JTAG_TCK */
0x1a4 ( PIN_OUTPUT | MUX_MODE9 ) /* MCASP0_FSR.gpio0[19] ZIGBEE_RESET_AM437x */

I have tried all three GPIO with high and low but output remains same.

---------- sysfs output ----------------
root@am437x-evm:~# cat /sys/kernel/debug/gpio
GPIOs 0-31, platform/4804c000.gpio, gpio:
gpio-20 ( |vmmcwl_fixed ) out lo

GPIOs 32-63, platform/481ae000.gpio, gpio:
gpio-51 ( |matrix_kbd_col ) out hi
gpio-52 ( |matrix_kbd_col ) out hi

GPIOs 64-95, platform/48320000.gpio, gpio:
gpio-66 ( |matrix_kbd_row ) in lo IRQ
gpio-67 ( |matrix_kbd_row ) in lo IRQ

GPIOs 96-127, platform/44e07000.gpio, gpio:
gpio-99 ( |matrix_kbd_row ) in lo IRQ
gpio-102 ( |cd ) in lo IRQ

GPIOs 128-159, platform/48322000.gpio, gpio:
gpio-135 ( |vtt_fixed ) out hi
gpio-136 ( |SelLCDorHDMI ) out hi

GPIOs 510-511, platform/50000000.gpmc, omap-gpmc:
gpio-510 ( |rb ) in hi

-----------------------------------------

Can you comment on this? or What are the possible pin numbers that I should check?

Regards,
Nilesh Kadivar

0 nilesh kadivar over 8 years ago in reply to nilesh kadivar

Intellectual 940 points

Hi Yordan,

Any update on this?

Regards,
Nilesh

0 nilesh kadivar over 8 years ago in reply to nilesh kadivar

Intellectual 940 points

Hi Yordan,

Can you please help me on this?

Regards,

Nilesh Kadivar

0 Yordan Kovachev over 8 years ago in reply to nilesh kadivar

TI__Guru**** 161600 points

Hi,

First of all, can you share which sdk is this?

Does your gpio state changes if you enable the pullup in your pinmux settings?

Can you stop at u-boot & try to write the padconf registers manually with mm (again enabling and disabling the pullup)? Do you get any change in the pin state?

Best Regards,
Yordan

0 nilesh kadivar over 8 years ago in reply to Yordan Kovachev

Intellectual 940 points

Hi Yordan,

Thanks for your reply.

1. SDK I am using is ti-processor-sdk-linux-am437x-evm-03.00.00.04-Linux-x86-Install.bin

2. No gpio state is not changed on enabling pullup in pinmux. (I changed dts file like "0x1ac ( PIN_INPUT_PULLUP | MUX_MODE9 ) /* MCASP0_AHCLKX.gpio0[3] ZIG_JTAG_TD */")

3. When I am using mm command on uboot my board getting restart immediately and log is as below.

U-Boot 2016.05-gb4e185a8c3 (Jul 08 2016 - 19:41:30 -0400)

I2C: ready
DRAM: 2 GiB
PMIC: TPS65218
NAND: 512 MiB
MMC: OMAP SD/MMC: 0
reading uboot.env

** Unable to read "uboot.env" from mmc0:1 **
Using default environment

Net:
Warning: ethernet@4a100000 using MAC address from ROM
eth0: ethernet@4a100000
Hit any key to stop autoboot: 0
=> mm.b 100000
00100000:data abort
pc : [<fff34792>] lr : [<fff34777>]
reloc pc : [<80804792>] lr : [<80804777>]
sp : fef14b70 ip : 00000000 fp : 00000002
r10: fff8ca88 r9 : fef1fed8 r8 : fff75ab0
r7 : fff75a89 r6 : 00000001 r5 : 00000001 r4 : 00100000
r3 : fff55641 r2 : 0000003a r1 : 00000000 r0 : fff75ab0
Flags: Nzcv IRQs off FIQs off Mode SVC_32
Resetting CPU ...

resetting ...

Anything else that I can try?

Regards,
Nilesh KAdivar

0 nilesh kadivar over 8 years ago in reply to nilesh kadivar

Intellectual 940 points

Hi Yordan,

Please suggest me at least evm sdk's currently used gpio that I can check with high and low value by exporting it. If it will running then based on that I will do pin muxing like that. Can you please try and check gpio high and low at your side that I mentioned earlier in this chain by doing pin muxing?

Thanks & Regards,

Nilesh Kadivar

0 Kemal R. Shakir over 8 years ago in reply to nilesh kadivar

TI__Guru 55345 points

Hello Nilesh,

Please, check the AM437x GP EVM's schematic and use TI PinMux tool. As I see gpio19 (GPIO0_18) pin G21 operates as USB0_DRVVBUS in MUX_MODE0 and it is tied to the USB0 port.

If you check the <Processor SDK>/board-support/linux-<version>/arch/arm/boot/dts/am437x-gp-evm.dts you will see that the pins you have muxed are already in use by matrix_keypad

matrix_keypad_default: matrix_keypad_default {
pinctrl-single,pins = <
0x1a4 (PIN_OUTPUT | MUX_MODE7)
0x1a8 (PIN_OUTPUT | MUX_MODE7)
0x1ac (PIN_INPUT | PULL_DISABLE | MUX_MODE9) /* mcasp0_ahclkx.gpio0_3 */
0x154 (PIN_INPUT_PULLDOWN | MUX_MODE0)
>;
};

If you export gpio138 you should be able to turn on/off the orange LED light on the board.

echo 138 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio138/direction
echo 0 > /sys/class/gpio/gpio138/value
echo 1 > /sys/class/gpio/gpio138/value

Please, also check this thread.

Best regards,
Kemal

0 nilesh kadivar over 8 years ago in reply to Kemal R. Shakir

Intellectual 940 points

Hi Kemal,

Thanks for your reply.

I am able to high and low orange LED as you mentioned. It's GPIO5_10 and I don't why it takes pin 138 instead of 170 (32*5+10). Please find my dts file as attached.

Fullscreen am437x-gp-evm.txt Download

/*
 * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
 *
 * 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.
 */

/* AM437x GP EVM */

/dts-v1/;

#include "am4372.dtsi"
#include <dt-bindings/pinctrl/am43xx.h>
#include <dt-bindings/pwm/pwm.h>
#include <dt-bindings/gpio/gpio.h>

/ {
	model = "TI AM437x GP EVM";
	compatible = "ti,am437x-gp-evm","ti,am4372","ti,am43";

	aliases {
		display0 = &lcd0;
	};

	evm_v3_3d: fixedregulator-v3_3d {
		compatible = "regulator-fixed";
		regulator-name = "evm_v3_3d";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		enable-active-high;
	};

	vtt_fixed: fixedregulator-vtt {
		compatible = "regulator-fixed";
		regulator-name = "vtt_fixed";
		regulator-min-microvolt = <1500000>;
		regulator-max-microvolt = <1500000>;
		regulator-always-on;
		regulator-boot-on;
		enable-active-high;
		gpio = <&gpio5 7 GPIO_ACTIVE_HIGH>;
	};

	vmmcwl_fixed: fixedregulator-mmcwl {
		compatible = "regulator-fixed";
		regulator-name = "vmmcwl_fixed";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		gpio = <&gpio1 20 GPIO_ACTIVE_HIGH>;
		enable-active-high;
	};

	lcd_bl: backlight {
		compatible = "pwm-backlight";
		pwms = <&ecap0 0 50000 PWM_POLARITY_INVERTED>;
		brightness-levels = <0 51 53 56 62 75 101 152 255>;
		default-brightness-level = <8>;
	};

	matrix_keypad: matrix_keypad@0 {
		compatible = "gpio-matrix-keypad";
		debounce-delay-ms = <5>;
		col-scan-delay-us = <2>;

		pinctrl-names = "default", "sleep";
		pinctrl-0 = <&matrix_keypad_default>;
		pinctrl-1 = <&matrix_keypad_sleep>;

		linux,wakeup;

		linux,keymap = <0x00000201      /* P1 */
				0x00010202      /* P2 */
				0x01000067      /* UP */
				0x0101006a      /* RIGHT */
				0x02000069      /* LEFT */
				0x0201006c>;      /* DOWN */
		};

	lcd0: display {
		compatible = "osddisplays,osd057T0559-34ts", "panel-dpi";
		label = "lcd";

		panel-timing {
			clock-frequency = <33000000>;
			hactive = <800>;
			vactive = <480>;
			hfront-porch = <210>;
			hback-porch = <16>;
			hsync-len = <30>;
			vback-porch = <10>;
			vfront-porch = <22>;
			vsync-len = <13>;
			hsync-active = <0>;
			vsync-active = <0>;
			de-active = <1>;
			pixelclk-active = <1>;
		};

		port {
			lcd_in: endpoint {
				remote-endpoint = <&dpi_out>;
			};
		};
	};

	/* fixed 12MHz oscillator */
	refclk: oscillator {
		#clock-cells = <0>;
		compatible = "fixed-clock";
		clock-frequency = <12000000>;
	};

	/* fixed 32k external oscillator clock */
	clk_32k_rtc: clk_32k_rtc {
		#clock-cells = <0>;
		compatible = "fixed-clock";
		clock-frequency = <32768>;
	};

	sound0: sound@0 {
		compatible = "simple-audio-card";
		simple-audio-card,name = "AM437x-GP-EVM";
		simple-audio-card,widgets =
			"Headphone", "Headphone Jack",
			"Line", "Line In";
		simple-audio-card,routing =
			"Headphone Jack",	"HPLOUT",
			"Headphone Jack",	"HPROUT",
			"LINE1L",		"Line In",
			"LINE1R",		"Line In";
		simple-audio-card,format = "dsp_b";
		simple-audio-card,bitclock-master = <&sound0_master>;
		simple-audio-card,frame-master = <&sound0_master>;
		simple-audio-card,bitclock-inversion;

		simple-audio-card,cpu {
			sound-dai = <&mcasp1>;
			system-clock-frequency = <12000000>;
		};

		sound0_master: simple-audio-card,codec {
			sound-dai = <&tlv320aic3106>;
			system-clock-frequency = <12000000>;
		};
	};

	audio_mstrclk: mclk_osc {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <12000000>;
	};

};

&am43xx_pinmux {
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&wlan_pins_default &ddr3_vtt_toggle_default>;
	pinctrl-1 = <&wlan_pins_sleep>;

	ddr3_vtt_toggle_default: ddr_vtt_toggle_default {
		pinctrl-single,pins = <
			0x25C (DS0_PULL_UP_DOWN_EN | PIN_OUTPUT_PULLUP | DS0_FORCE_OFF_MODE | MUX_MODE7) /* spi0_cs0.gpio5_7 */
		>;
	};

	i2c0_pins: i2c0_pins {
		pinctrl-single,pins = <
			0x188 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)  /* i2c0_sda.i2c0_sda */
			0x18c (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)  /* i2c0_scl.i2c0_scl */
		>;
	};

	i2c1_pins_default: i2c1_pins_default {
		pinctrl-single,pins = <
			0x15c (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE2)  /* spi0_cs0.i2c1_scl */
			0x158 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE2)  /* spi0_d1.i2c1_sda  */
		>;
	};

	i2c1_pins_sleep: i2c1_pins_sleep {
		pinctrl-single,pins = <
			0x15c (PIN_INPUT_PULLUP | MUX_MODE7)
			0x158 (PIN_INPUT_PULLUP | MUX_MODE7)
		>;
	};

	mmc1_pins: pinmux_mmc1_pins {
		pinctrl-single,pins = <
			0x100 (PIN_INPUT_PULLUP | MUX_MODE0) /* mmc0_clk.mmc0_clk */
			0x104 (PIN_INPUT_PULLUP | MUX_MODE0) /* mmc0_cmd.mmc0_cmd */
			0x0f0 (PIN_INPUT_PULLUP | MUX_MODE0) /* mmc0_dat0.mmc0_dat0 */
			0x0f4 (PIN_INPUT_PULLUP | MUX_MODE0) /* mmc0_dat1.mmc0_dat1 */
			0x0f8 (PIN_INPUT_PULLUP | MUX_MODE0) /* mmc0_dat2.mmc0_dat2 */
			0x0fc (PIN_INPUT_PULLUP | MUX_MODE0) /* mmc0_dat3.mmc0_dat3 */
			0x160 (PIN_INPUT | MUX_MODE7) /* spi0_cs1.gpio0_6 */
		>;
	};

	mmc1_sleep_pins: pinmux_mmc1_sleep_pins {
		pinctrl-single,pins = <
			0x100 (PIN_INPUT_PULLDOWN | MUX_MODE7)
			0x104 (PIN_INPUT | PULL_DISABLE | MUX_MODE7)
			0x0f0 (PIN_INPUT | PULL_DISABLE | MUX_MODE7)
			0x0f4 (PIN_INPUT | PULL_DISABLE | MUX_MODE7)
			0x0f8 (PIN_INPUT | PULL_DISABLE | MUX_MODE7)
			0x0fc (PIN_INPUT | PULL_DISABLE | MUX_MODE7)
			0x160 (PIN_INPUT | PULL_DISABLE | MUX_MODE7)
		>;
	};

	ecap0_pins_default: backlight_pins_default {
		pinctrl-single,pins = <
			0x164 MUX_MODE0       /* eCAP0_in_PWM0_out.eCAP0_in_PWM0_out MODE0 */
		>;
	};

	ecap0_pins_sleep: backlight_pins_sleep {
		pinctrl-single,pins = <
			0x164 (PIN_INPUT_PULLDOWN | MUX_MODE7)
		>;
	};

	pixcir_ts_pins_default: pixcir_ts_pins_default {
		pinctrl-single,pins = <
			0x264 (PIN_INPUT_PULLUP | MUX_MODE7)  /* spi2_d0.gpio3_22 */
		>;
	};

	pixcir_ts_pins_sleep: pixcir_ts_pins_sleep {
		pinctrl-single,pins = <
			0x264 (PIN_INPUT | PULL_DISABLE | MUX_MODE7)  /* spi2_d0.gpio3_22 */
		>;
	};

	cpsw_default: cpsw_default {
		pinctrl-single,pins = <
			/* Slave 1 */
			0x114 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txen.rgmii1_txen */
			0x118 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxdv.rgmii1_rxctl */
			0x11c (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd1.rgmii1_txd3 */
			0x120 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd0.rgmii1_txd2 */
			0x124 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd1.rgmii1_txd1 */
			0x128 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd0.rgmii1_txd0 */
			0x12c (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txclk.rmii1_tclk */
			0x130 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxclk.rmii1_rclk */
			0x134 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd1.rgmii1_rxd3 */
			0x138 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd0.rgmii1_rxd2 */
			0x13c (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd1.rgmii1_rxd1 */
			0x140 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd0.rgmii1_rxd0 */
		>;
	};

	cpsw_sleep: cpsw_sleep {
		pinctrl-single,pins = <
			/* Slave 1 reset value */
			0x114 (PIN_INPUT_PULLDOWN | MUX_MODE7)
			0x118 (PIN_INPUT_PULLDOWN | MUX_MODE7)
			0x11c (PIN_INPUT_PULLDOWN | MUX_MODE7)
			0x120 (PIN_INPUT_PULLDOWN | MUX_MODE7)
			0x124 (PIN_INPUT_PULLDOWN | MUX_MODE7)
			0x128 (PIN_INPUT_PULLDOWN | MUX_MODE7)
			0x12c (PIN_INPUT_PULLDOWN | MUX_MODE7)
			0x130 (PIN_INPUT_PULLDOWN | MUX_MODE7)
			0x134 (PIN_INPUT | PULL_DISABLE | MUX_MODE7)
			0x138 (PIN_INPUT | PULL_DISABLE | MUX_MODE7)
			0x13c (PIN_INPUT | PULL_DISABLE | MUX_MODE7)
			0x140 (PIN_INPUT | PULL_DISABLE | MUX_MODE7)
		>;
	};

	davinci_mdio_default: davinci_mdio_default {
		pinctrl-single,pins = <
			/* MDIO */
			0x148 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)	/* mdio_data.mdio_data */
			0x14c (PIN_OUTPUT_PULLUP | MUX_MODE0)			/* mdio_clk.mdio_clk */
		>;
	};

	davinci_mdio_sleep: davinci_mdio_sleep {
		pinctrl-single,pins = <
			/* MDIO reset value */
			0x148 (PIN_INPUT | PULL_DISABLE | MUX_MODE7)
			0x14c (PIN_INPUT | PULL_DISABLE | MUX_MODE7)
		>;
	};

	nand_flash_x8_default: nand_flash_x8_default {
		pinctrl-single,pins = <
			0x0  (PIN_INPUT  | MUX_MODE0)	/* gpmc_ad0.gpmc_ad0 */
			0x4  (PIN_INPUT  | MUX_MODE0)	/* gpmc_ad1.gpmc_ad1 */
			0x8  (PIN_INPUT  | MUX_MODE0)	/* gpmc_ad2.gpmc_ad2 */
			0xc  (PIN_INPUT  | MUX_MODE0)	/* gpmc_ad3.gpmc_ad3 */
			0x10 (PIN_INPUT  | MUX_MODE0)	/* gpmc_ad4.gpmc_ad4 */
			0x14 (PIN_INPUT  | MUX_MODE0)	/* gpmc_ad5.gpmc_ad5 */
			0x18 (PIN_INPUT  | MUX_MODE0)	/* gpmc_ad6.gpmc_ad6 */
			0x1c (PIN_INPUT  | MUX_MODE0)	/* gpmc_ad7.gpmc_ad7 */
			0x70 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_wait0.gpmc_wait0 */
			0x74 (PIN_OUTPUT_PULLUP | MUX_MODE7)	/* gpmc_wpn.gpmc_wpn */
			0x7c (PIN_OUTPUT | MUX_MODE0)		/* gpmc_csn0.gpmc_csn0  */
			0x90 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_advn_ale.gpmc_advn_ale */
			0x94 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_oen_ren.gpmc_oen_ren */
			0x98 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_wen.gpmc_wen */
			0x9c (PIN_OUTPUT | MUX_MODE0)		/* gpmc_be0n_cle.gpmc_be0n_cle */
		>;
	};

	nand_flash_x8_sleep: nand_flash_x8_sleep {
		pinctrl-single,pins = <
			0x0  (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_ad0.gpmc_ad0 */
			0x4  (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_ad1.gpmc_ad1 */
			0x8  (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_ad2.gpmc_ad2 */
			0xc  (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_ad3.gpmc_ad3 */
			0x10 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_ad4.gpmc_ad4 */
			0x14 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_ad5.gpmc_ad5 */
			0x18 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_ad6.gpmc_ad6 */
			0x1c (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_ad7.gpmc_ad7 */
			0x70 (PIN_INPUT | PULL_DISABLE | MUX_MODE7)	/* gpmc_wait0.gpmc_wait0 */
			0x74 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_wpn.gpmc_wpn */
			0x7c (PIN_INPUT | PULL_DISABLE | MUX_MODE7)		/* gpmc_csn0.gpmc_csn0  */
			0x90 (PIN_INPUT | PULL_DISABLE | MUX_MODE7)		/* gpmc_advn_ale.gpmc_advn_ale */
			0x94 (PIN_INPUT_PULLDOWN | MUX_MODE7)		/* gpmc_oen_ren.gpmc_oen_ren */
			0x98 (PIN_INPUT_PULLDOWN |  MUX_MODE7)		/* gpmc_wen.gpmc_wen */
			0x9c (PIN_INPUT | PULL_DISABLE | MUX_MODE7)		/* gpmc_be0n_cle.gpmc_be0n_cle */
		>;
	};

	dss_pins: dss_pins {
		pinctrl-single,pins = <
			0x020 (PIN_OUTPUT_PULLUP | MUX_MODE1) /*gpmc ad 8 -> DSS DATA 23 */
			0x024 (PIN_OUTPUT_PULLUP | MUX_MODE1)
			0x028 (PIN_OUTPUT_PULLUP | MUX_MODE1)
			0x02c (PIN_OUTPUT_PULLUP | MUX_MODE1)
			0x030 (PIN_OUTPUT_PULLUP | MUX_MODE1)
			0x034 (PIN_OUTPUT_PULLUP | MUX_MODE1)
			0x038 (PIN_OUTPUT_PULLUP | MUX_MODE1)
			0x03c (PIN_OUTPUT_PULLUP | MUX_MODE1) /*gpmc ad 15 -> DSS DATA 16 */
			0x0a0 (PIN_OUTPUT_PULLUP | MUX_MODE0) /* DSS DATA 0 */
			0x0a4 (PIN_OUTPUT_PULLUP | MUX_MODE0)
			0x0a8 (PIN_OUTPUT_PULLUP | MUX_MODE0)
			0x0ac (PIN_OUTPUT_PULLUP | MUX_MODE0)
			0x0b0 (PIN_OUTPUT_PULLUP | MUX_MODE0)
			0x0b4 (PIN_OUTPUT_PULLUP | MUX_MODE0)
			0x0b8 (PIN_OUTPUT_PULLUP | MUX_MODE0)
			0x0bc (PIN_OUTPUT_PULLUP | MUX_MODE0)
			0x0c0 (PIN_OUTPUT_PULLUP | MUX_MODE0)
			0x0c4 (PIN_OUTPUT_PULLUP | MUX_MODE0)
			0x0c8 (PIN_OUTPUT_PULLUP | MUX_MODE0)
			0x0cc (PIN_OUTPUT_PULLUP | MUX_MODE0)
			0x0d0 (PIN_OUTPUT_PULLUP | MUX_MODE0)
			0x0d4 (PIN_OUTPUT_PULLUP | MUX_MODE0)
			0x0d8 (PIN_OUTPUT_PULLUP | MUX_MODE0)
			0x0dc (PIN_OUTPUT_PULLUP | MUX_MODE0) /* DSS DATA 15 */
			0x0e0 (PIN_OUTPUT_PULLUP | MUX_MODE0) /* DSS VSYNC */
			0x0e4 (PIN_OUTPUT_PULLUP | MUX_MODE0) /* DSS HSYNC */
			0x0e8 (PIN_OUTPUT_PULLUP | MUX_MODE0) /* DSS PCLK */
			0x0ec (PIN_OUTPUT_PULLUP | MUX_MODE0) /* DSS AC BIAS EN */

		>;
	};

	display_mux_pins: display_mux_pins {
		pinctrl-single,pins = <
			/* GPIO 5_8 to select LCD / HDMI */
			0x238 (PIN_OUTPUT_PULLUP | MUX_MODE7)
		>;
	};

	vpfe0_pins_default: vpfe0_pins_default {
		pinctrl-single,pins = <
			0x1B0 (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam0_hd mode 0*/
			0x1B4 (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam0_vd mode 0*/
			0x1C0 (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam0_pclk mode 0*/
			0x1C4 (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam0_data8 mode 0*/
			0x1C8 (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam0_data9 mode 0*/
			0x208 (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam0_data0 mode 0*/
			0x20C (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam0_data1 mode 0*/
			0x210 (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam0_data2 mode 0*/
			0x214 (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam0_data3 mode 0*/
			0x218 (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam0_data4 mode 0*/
			0x21C (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam0_data5 mode 0*/
			0x220 (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam0_data6 mode 0*/
			0x224 (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam0_data7 mode 0*/
		>;
	};

	vpfe0_pins_sleep: vpfe0_pins_sleep {
		pinctrl-single,pins = <
			0x1B0 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam0_hd mode 0*/
			0x1B4 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam0_vd mode 0*/
			0x1C0 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam0_pclk mode 0*/
			0x1C4 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam0_data8 mode 0*/
			0x1C8 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam0_data9 mode 0*/
			0x208 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam0_data0 mode 0*/
			0x20C (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam0_data1 mode 0*/
			0x210 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam0_data2 mode 0*/
			0x214 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam0_data3 mode 0*/
			0x218 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam0_data4 mode 0*/
			0x21C (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam0_data5 mode 0*/
			0x220 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam0_data6 mode 0*/
			0x224 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam0_data7 mode 0*/
		>;
	};

	vpfe1_pins_default: vpfe1_pins_default {
		pinctrl-single,pins = <
			0x1CC (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam1_data9 mode 0*/
			0x1D0 (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam1_data8 mode 0*/
			0x1D4 (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam1_hd mode 0*/
			0x1D8 (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam1_vd mode 0*/
			0x1DC (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam1_pclk mode 0*/
			0x1E8 (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam1_data0 mode 0*/
			0x1EC (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam1_data1 mode 0*/
			0x1F0 (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam1_data2 mode 0*/
			0x1F4 (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam1_data3 mode 0*/
			0x1F8 (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam1_data4 mode 0*/
			0x1FC (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam1_data5 mode 0*/
			0x200 (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam1_data6 mode 0*/
			0x204 (PIN_INPUT_PULLUP | MUX_MODE0)  /* cam1_data7 mode 0*/
		>;
	};

	vpfe1_pins_sleep: vpfe1_pins_sleep {
		pinctrl-single,pins = <
			0x1CC (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam1_data9 mode 0*/
			0x1D0 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam1_data8 mode 0*/
			0x1D4 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam1_hd mode 0*/
			0x1D8 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam1_vd mode 0*/
			0x1DC (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam1_pclk mode 0*/
			0x1E8 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam1_data0 mode 0*/
			0x1EC (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam1_data1 mode 0*/
			0x1F0 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam1_data2 mode 0*/
			0x1F4 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam1_data3 mode 0*/
			0x1F8 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam1_data4 mode 0*/
			0x1FC (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam1_data5 mode 0*/
			0x200 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam1_data6 mode 0*/
			0x204 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)  /* cam1_data7 mode 0*/
		>;
	};

	mmc3_pins_default: pinmux_mmc3_pins_default {
		pinctrl-single,pins = <
			0x8c (PIN_INPUT_PULLUP | MUX_MODE3)      /* gpmc_clk.mmc2_clk */
			0x88 (PIN_INPUT_PULLUP | MUX_MODE3)      /* gpmc_csn3.mmc2_cmd */
			0x44 (PIN_INPUT_PULLUP | MUX_MODE3)      /* gpmc_a1.mmc2_dat0 */
			0x48 (PIN_INPUT_PULLUP | MUX_MODE3)      /* gpmc_a2.mmc2_dat1 */
			0x4c (PIN_INPUT_PULLUP | MUX_MODE3)      /* gpmc_a3.mmc2_dat2 */
			0x78 (PIN_INPUT_PULLUP | MUX_MODE3)      /* gpmc_be1n.mmc2_dat3 */
		>;
	};

	mmc3_pins_sleep: pinmux_mmc3_pins_sleep {
		pinctrl-single,pins = <
			0x8c (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_clk.mmc2_clk */
			0x88 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_csn3.mmc2_cmd */
			0x44 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_a1.mmc2_dat0 */
			0x48 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_a2.mmc2_dat1 */
			0x4c (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_a3.mmc2_dat2 */
			0x78 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_be1n.mmc2_dat3 */
		>;
	};

	wlan_pins_default: pinmux_wlan_pins_default {
		pinctrl-single,pins = <
			0x50 (PIN_OUTPUT_PULLDOWN | MUX_MODE7)		/* gpmc_a4.gpio1_20 WL_EN */
			0x5c (PIN_INPUT | WAKEUP_ENABLE | MUX_MODE7)	/* gpmc_a7.gpio1_23 WL_IRQ*/
			0x40 (PIN_OUTPUT_PULLDOWN | MUX_MODE7)		/* gpmc_a0.gpio1_16 BT_EN*/
		>;
	};

	wlan_pins_sleep: pinmux_wlan_pins_sleep {
		pinctrl-single,pins = <
			0x50 (PIN_OUTPUT_PULLDOWN | MUX_MODE7)		/* gpmc_a4.gpio1_20 WL_EN */
			0x5c (PIN_INPUT | WAKEUP_ENABLE | MUX_MODE7)	/* gpmc_a7.gpio1_23 WL_IRQ*/
			0x40 (PIN_OUTPUT_PULLUP | MUX_MODE7)		/* gpmc_a0.gpio1_16 BT_EN*/
		>;
	};

	uart3_pins: uart3_pins {
		pinctrl-single,pins = <
			0x228 (PIN_INPUT | MUX_MODE0)		/* uart3_rxd.uart3_rxd */
			0x22c (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* uart3_txd.uart3_txd */
			0x230 (PIN_INPUT_PULLUP | MUX_MODE0)	/* uart3_ctsn.uart3_ctsn */
			0x234 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* uart3_rtsn.uart3_rtsn */
		>;
	};

	mcasp1_pins: mcasp1_pins {
		pinctrl-single,pins = <
			0x108 (PIN_OUTPUT_PULLDOWN | MUX_MODE4)	/* mii1_col.mcasp1_axr2 */
			0x10c (PIN_INPUT_PULLDOWN | MUX_MODE4)	/* mii1_crs.mcasp1_aclkx */
			0x110 (PIN_INPUT_PULLDOWN | MUX_MODE4)	/* mii1_rxerr.mcasp1_fsx */
			0x144 (PIN_INPUT_PULLDOWN | MUX_MODE4)	/* rmii1_ref_clk.mcasp1_axr3 */
		>;
	};

	mcasp1_sleep_pins: mcasp1_sleep_pins {
		pinctrl-single,pins = <
			0x108 (PIN_INPUT_PULLDOWN | MUX_MODE7)
			0x10c (PIN_INPUT_PULLDOWN | MUX_MODE7)
			0x110 (PIN_INPUT_PULLDOWN | MUX_MODE7)
			0x144 (PIN_INPUT_PULLDOWN | MUX_MODE7)
		>;
	};

	gpio0_pins: gpio0_pins {
		pinctrl-single,pins = <
            0x1ac ( PIN_INPUT_PULLUP | MUX_MODE9 )  /* MCASP0_AHCLKX.gpio0[3] ZIG_JTAG_TD */
			0x1a8 ( PIN_OUTPUT | MUX_MODE9 ) /* mcasp0_axr1.gpio0[2] ZIG_JTAG_TCK */
            0x1a4 ( PIN_OUTPUT | MUX_MODE9 ) /* MCASP0_FSR.gpio0[19] ZIGBEE_RESET_AM437x */
		>;
	};

	emmc_pins_default: emmc_pins_default {
		pinctrl-single,pins = <
			0x00 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad0.mmc1_dat0 */
			0x04 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad1.mmc1_dat1 */
			0x08 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad2.mmc1_dat2 */
			0x0c (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad3.mmc1_dat3 */
			0x10 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad4.mmc1_dat4 */
			0x14 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad5.mmc1_dat5 */
			0x18 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad6.mmc1_dat6 */
			0x1c (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad7.mmc1_dat7 */
			0x80 (PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_csn1.mmc1_clk */
			0x84 (PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_csn2.mmc1_cmd */
		>;
	};

	emmc_pins_sleep: emmc_pins_sleep {
		pinctrl-single,pins = <
			0x00 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad0.gpio1_0 */
			0x04 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad1.gpio1_1 */
			0x08 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad2.gpio1_2 */
			0x0c (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad3.gpio1_3 */
			0x10 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad4.gpio1_4 */
			0x14 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad5.gpio1_5 */
			0x18 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad6.gpio1_6 */
			0x1c (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad7.gpio1_7 */
			0x80 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_csn1.gpio1_30 */
			0x84 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_csn2.gpio1_31 */
		>;
	};

	uart0_pins_default: uart0_pins_default {
		pinctrl-single,pins = <
			0x168 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE0)
			0x16C (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE0)
			0x170 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | DS0_PULL_UP_DOWN_EN | MUX_MODE0) /* uart0_rxd.uart0_rxd */
			0x174 (PIN_INPUT | PULL_DISABLE | SLEWCTRL_FAST | DS0_PULL_UP_DOWN_EN | MUX_MODE0) /* uart0_txd.uart0_txd */
		>;
	};

	uart0_pins_sleep: uart0_pins_sleep {
		pinctrl-single,pins = <
			0x168 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)
			0x16C (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7)
			0x170 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | DS0_PULL_UP_DOWN_EN | MUX_MODE0) /* uart0_rxd.uart0_rxd */
			0x174 (PIN_INPUT_PULLDOWN | SLEWCTRL_FAST | DS0_PULL_UP_DOWN_EN | MUX_MODE0) /* uart0_txd.uart0_txd */
		>;
	};
    
    /* UART1 for Zigbee with Flow Control */
    uart1_pins_default: pinmux_uart1_pins_default {
        pinctrl-single,pins = <
            0x180 ( PIN_INPUT_PULLUP    | MUX_MODE0 )   /* (K21) uart1_rxd */
            0x184 ( PIN_OUTPUT_PULLDOWN | MUX_MODE0 )   /* (L21) uart1_txd */
            0x178 ( PIN_INPUT           | MUX_MODE0 )   /* (K22) uart1_ctsn */
            0x17c ( PIN_OUTPUT_PULLDOWN | MUX_MODE0 )   /* (L22) uart1_rtsn */
        >;

    };

    uart1_pins_sleep: pinmux_uart1_pins_sleep {
        pinctrl-single,pins = <
            0x180 ( PIN_INPUT_PULLDOWN | MUX_MODE7 )    /* (K21) uart1_rxd.gpio0_14  */
            0x184 ( PIN_INPUT_PULLDOWN | MUX_MODE7 )    /* (L21) uart1_txd.gpio0_15  */
            0x178 ( PIN_INPUT_PULLDOWN | MUX_MODE7 )    /* (K22) uart1_ctsn.gpio0_12 */
            0x17c ( PIN_INPUT_PULLDOWN | MUX_MODE7 )    /* (L22) uart1_rtsn.gpio0_13 */
        >;

    };

	matrix_keypad_default: matrix_keypad_default {
		pinctrl-single,pins = <
			0x154 (PIN_INPUT_PULLDOWN | MUX_MODE0)
		>;
	};

	matrix_keypad_sleep: matrix_keypad_sleep {
		pinctrl-single,pins = <
			0x154 (PIN_INPUT_PULLDOWN | MUX_MODE0)
		>;
	};
};

&i2c0 {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&i2c0_pins>;
	clock-frequency = <100000>;

	tps65218: tps65218@24 {
		reg = <0x24>;
		compatible = "ti,tps65218";
		interrupts = <GIC_SPI 7 IRQ_TYPE_NONE>; /* NMIn */
		interrupt-controller;
		#interrupt-cells = <2>;

		dcdc1: regulator-dcdc1 {
			compatible = "ti,tps65218-dcdc1";
			regulator-name = "vdd_core";
			regulator-min-microvolt = <912000>;
			regulator-max-microvolt = <1144000>;
			regulator-boot-on;
			regulator-always-on;
		};

		dcdc2: regulator-dcdc2 {
			compatible = "ti,tps65218-dcdc2";
			regulator-name = "vdd_mpu";
			regulator-min-microvolt = <912000>;
			regulator-max-microvolt = <1378000>;
			regulator-boot-on;
			regulator-always-on;
		};

		dcdc3: regulator-dcdc3 {
			compatible = "ti,tps65218-dcdc3";
			regulator-name = "vdcdc3";
			regulator-min-microvolt = <1500000>;
			regulator-max-microvolt = <1500000>;
			regulator-boot-on;
			regulator-always-on;
			regulator-state-mem {
				regulator-on-in-suspend;
			};
			regulator-state-disk {
				regulator-off-in-suspend;
			};
		};

		dcdc5: regulator-dcdc5 {
			compatible = "ti,tps65218-dcdc5";
			regulator-name = "v1_0bat";
			regulator-min-microvolt = <1000000>;
			regulator-max-microvolt = <1000000>;
			regulator-boot-on;
			regulator-always-on;
			regulator-state-mem {
				regulator-on-in-suspend;
			};
		};

		dcdc6: regulator-dcdc6 {
			compatible = "ti,tps65218-dcdc6";
			regulator-name = "v1_8bat";
			regulator-min-microvolt = <1800000>;
			regulator-max-microvolt = <1800000>;
			regulator-boot-on;
			regulator-always-on;
			regulator-state-mem {
				regulator-on-in-suspend;
			};
		};

		ldo1: regulator-ldo1 {
			compatible = "ti,tps65218-ldo1";
			regulator-min-microvolt = <1800000>;
			regulator-max-microvolt = <1800000>;
			regulator-boot-on;
			regulator-always-on;
		};
	};

	ov2659@30 {
		compatible = "ovti,ov2659";
		reg = <0x30>;

		clocks = <&audio_mstrclk>;
		clock-names = "xvclk";

		port {
			ov2659_0: endpoint {
				remote-endpoint = <&vpfe1_ep>;
				link-frequencies = /bits/ 64 <70000000>;
			};
		};
	};
};

&i2c1 {
	status = "okay";
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&i2c1_pins_default>;
	pinctrl-1 = <&i2c1_pins_sleep>;
	pixcir_ts@5c {
		compatible = "pixcir,pixcir_tangoc";
		pinctrl-names = "default", "sleep";
		pinctrl-0 = <&pixcir_ts_pins_default>;
		pinctrl-1 = <&pixcir_ts_pins_sleep>;
		reg = <0x5c>;
		interrupt-parent = <&gpio3>;
		interrupts = <22 0>;

		attb-gpio = <&gpio3 22 GPIO_ACTIVE_HIGH>;

		/*
		 * 0x264 represents the offset of padconf register of
		 * gpio3_22 from am43xx_pinmux base.
		 */
		interrupts-extended = <&gpio3 22 IRQ_TYPE_NONE>,
				      <&am43xx_pinmux 0x264>;
		interrupt-names = "tsc", "wakeup";

		touchscreen-size-x = <1024>;
		touchscreen-size-y = <600>;
		wakeup-source;
	};

	ov2659@30 {
		compatible = "ovti,ov2659";
		reg = <0x30>;

		clocks = <&audio_mstrclk>;
		clock-names = "xvclk";

		port {
			ov2659_1: endpoint {
				remote-endpoint = <&vpfe0_ep>;
				link-frequencies = /bits/ 64 <70000000>;
			};
		};
	};

	tlv320aic3106: tlv320aic3106@1b {
		#sound-dai-cells = <0>;
		compatible = "ti,tlv320aic3106";
		reg = <0x1b>;
		status = "okay";

		/* Regulators */
		IOVDD-supply = <&evm_v3_3d>; /* V3_3D -> <tps63031> EN: V1_8D -> VBAT */
		AVDD-supply = <&evm_v3_3d>; /* v3_3AUD -> V3_3D -> ... */
		DRVDD-supply = <&evm_v3_3d>; /* v3_3AUD -> V3_3D -> ... */
		DVDD-supply = <&ldo1>; /* V1_8D -> LDO1 */
	};
};

&epwmss0 {
	status = "okay";
};

&tscadc {
	status = "okay";

	adc {
		ti,adc-channels = <0 1 2 3 4 5 6 7>;
	};
};

&ecap0 {
	status = "okay";
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&ecap0_pins_default>;
	pinctrl-1 = <&ecap0_pins_sleep>;
};

&gpio0 {
	pinctrl-names = "default";
	pinctrl-0 = <&gpio0_pins>;
	status = "okay";
};

&gpio1 {
	status = "okay";
};

&gpio3 {
	status = "okay";
};

&gpio4 {
	status = "okay";
};

&gpio5 {
	pinctrl-names = "default";
	pinctrl-0 = <&display_mux_pins>;
	status = "okay";
	ti,no-reset-on-init;

	p8 {
		/*
		 * SelLCDorHDMI selects between display and audio paths:
		 * Low: HDMI display with audio via HDMI
		 * High: LCD display with analog audio via aic3111 codec
		 */
		gpio-hog;
		gpios = <8 GPIO_ACTIVE_HIGH>;
		output-high;
		line-name = "SelLCDorHDMI";
	};
};

&mmc1 {
	status = "okay";
	vmmc-supply = <&evm_v3_3d>;
	bus-width = <4>;
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&mmc1_pins>;
	pinctrl-1 = <&mmc1_sleep_pins>;
	cd-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
};

/* eMMC sits on mmc2 */
&mmc2 {
	/*
	 * When enabling eMMC, disable GPMC/NAND and set
	 * SelEMMCorNAND to output-high
	 */
	status = "disabled";
	vmmc-supply = <&evm_v3_3d>;
	bus-width = <8>;
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&emmc_pins_default>;
	pinctrl-1 = <&emmc_pins_sleep>;
	ti,non-removable;
};

&mmc3 {
	status = "okay";
	/* these are on the crossbar and are outlined in the
	   xbar-event-map element */
	dmas = <&edma_xbar 30 0 1>,
		<&edma_xbar 31 0 2>;
	dma-names = "tx", "rx";
	vmmc-supply = <&vmmcwl_fixed>;
	bus-width = <4>;
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&mmc3_pins_default>;
	pinctrl-1 = <&mmc3_pins_sleep>;
	cap-power-off-card;
	keep-power-in-suspend;
	ti,non-removable;

	#address-cells = <1>;
	#size-cells = <0>;
	wlcore: wlcore@0 {
		compatible = "ti,wl1835";
		reg = <2>;
		interrupt-parent = <&gpio1>;
		interrupts = <23 IRQ_TYPE_LEVEL_HIGH>;
	};
};

&uart3 {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&uart3_pins>;
};

&usb2_phy1 {
	status = "okay";
};

&usb1 {
	dr_mode = "otg";
	status = "okay";
};

&usb2_phy2 {
	status = "okay";
};

&usb2 {
	dr_mode = "host";
	status = "okay";
};

&mac {
	slaves = <1>;
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&cpsw_default>;
	pinctrl-1 = <&cpsw_sleep>;
	status = "okay";
};

&davinci_mdio {
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&davinci_mdio_default>;
	pinctrl-1 = <&davinci_mdio_sleep>;
	status = "okay";
};

&cpsw_emac0 {
	phy_id = <&davinci_mdio>, <0>;
	phy-mode = "rgmii";
};

&elm {
	status = "okay";
};

&gpmc {
	/*
	 * When enabling GPMC, disable eMMC and set
	 * SelEMMCorNAND to output-low
	 */
	status = "okay";
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&nand_flash_x8_default>;
	pinctrl-1 = <&nand_flash_x8_sleep>;
	ranges = <0 0 0x08000000 0x01000000>;	/* CS0 space. Min partition = 16MB */
	nand@0,0 {
		compatible = "ti,omap2-nand";
		reg = <0 0 4>;		/* device IO registers */
		interrupt-parent = <&gpmc>;
		interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */
			     <1 IRQ_TYPE_NONE>;	/* termcount */
		rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>;	/* gpmc_wait0 */
		ti,nand-ecc-opt = "bch16";
		ti,elm-id = <&elm>;
		nand-bus-width = <8>;
		gpmc,device-width = <1>;
		gpmc,sync-clk-ps = <0>;
		gpmc,cs-on-ns = <0>;
		gpmc,cs-rd-off-ns = <40>;
		gpmc,cs-wr-off-ns = <40>;
		gpmc,adv-on-ns = <0>;
		gpmc,adv-rd-off-ns = <25>;
		gpmc,adv-wr-off-ns = <25>;
		gpmc,we-on-ns = <0>;
		gpmc,we-off-ns = <20>;
		gpmc,oe-on-ns = <3>;
		gpmc,oe-off-ns = <30>;
		gpmc,access-ns = <30>;
		gpmc,rd-cycle-ns = <40>;
		gpmc,wr-cycle-ns = <40>;
		gpmc,bus-turnaround-ns = <0>;
		gpmc,cycle2cycle-delay-ns = <0>;
		gpmc,clk-activation-ns = <0>;
		gpmc,wr-access-ns = <40>;
		gpmc,wr-data-mux-bus-ns = <0>;
		/* MTD partition table */
		/* All SPL-* partitions are sized to minimal length
		 * which can be independently programmable. For
		 * NAND flash this is equal to size of erase-block */
		#address-cells = <1>;
		#size-cells = <1>;
		partition@0 {
			label = "NAND.SPL";
			reg = <0x00000000 0x00040000>;
		};
		partition@1 {
			label = "NAND.SPL.backup1";
			reg = <0x00040000 0x00040000>;
		};
		partition@2 {
			label = "NAND.SPL.backup2";
			reg = <0x00080000 0x00040000>;
		};
		partition@3 {
			label = "NAND.SPL.backup3";
			reg = <0x000c0000 0x00040000>;
		};
		partition@4 {
			label = "NAND.u-boot-spl-os";
			reg = <0x00100000 0x00080000>;
		};
		partition@5 {
			label = "NAND.u-boot";
			reg = <0x00180000 0x00100000>;
		};
		partition@6 {
			label = "NAND.u-boot-env";
			reg = <0x00280000 0x00040000>;
		};
		partition@7 {
			label = "NAND.u-boot-env.backup1";
			reg = <0x002c0000 0x00040000>;
		};
		partition@8 {
			label = "NAND.kernel";
			reg = <0x00300000 0x00700000>;
		};
		partition@9 {
			label = "NAND.file-system";
			reg = <0x00a00000 0x1f600000>;
		};
	};
};

&uart0 {
	status = "okay";
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&uart0_pins_default>;
	pinctrl-1 = <&uart0_pins_sleep>;
};

&uart1 {
    pinctrl-names = "default";
    pinctrl-0 = <&uart1_pins_default>;
    pinctrl-1 = <&uart1_pins_sleep>;
    
    status = "okay";
};

&dss {
	status = "ok";

	pinctrl-names = "default";
	pinctrl-0 = <&dss_pins>;

	port {
		dpi_out: endpoint@0 {
			remote-endpoint = <&lcd_in>;
			data-lines = <24>;
		};
	};
};

&vpfe0 {
	status = "okay";
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&vpfe0_pins_default>;
	pinctrl-1 = <&vpfe0_pins_sleep>;

	port {
		vpfe0_ep: endpoint {
			remote-endpoint = <&ov2659_1>;
			ti,am437x-vpfe-interface = <0>;
			bus-width = <8>;
			hsync-active = <0>;
			vsync-active = <0>;
		};
	};
};

&vpfe1 {
	status = "okay";
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&vpfe1_pins_default>;
	pinctrl-1 = <&vpfe1_pins_sleep>;

	port {
		vpfe1_ep: endpoint {
			remote-endpoint = <&ov2659_0>;
			ti,am437x-vpfe-interface = <0>;
			bus-width = <8>;
			hsync-active = <0>;
			vsync-active = <0>;
		};
	};
};

&mcasp1 {
	#sound-dai-cells = <0>;
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&mcasp1_pins>;
	pinctrl-1 = <&mcasp1_sleep_pins>;

	status = "okay";

	op-mode = <0>; /* MCASP_IIS_MODE */
	tdm-slots = <2>;
	/* 4 serializers */
	serial-dir = <  /* 0: INACTIVE, 1: TX, 2: RX */
		0 0 1 2
	>;
	tx-num-evt = <32>;
	rx-num-evt = <32>;
};

&rtc {
	clocks = <&clk_32k_rtc>, <&clk_32768_ck>;
	clock-names = "ext-clk", "int-clk";
	status = "okay";
};

&wkup_m3_ipc {
	ti,set-io-isolation;
	ti,scale-data-fw = "am43x-evm-scale-data.bin";
};

&sgx {
	status = "okay";
};

&cpu {
	cpu0-supply = <&dcdc2>;
};

I have removed same pin used at anywhere in dts file. Still not able to work. I want Ball number L24 (gpio0_3) should be high low. what I am missing please see it from attached file. I am trying with below sequence.

echo 3 > /sys/class/gpio/export

echo out > /sys/class/gpio/gpio3/direction

echo 1 > /sys/class/gpio/gpio3/value

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Regards,

Nilesh Kadivar

0 Kemal R. Shakir over 8 years ago in reply to nilesh kadivar

TI__Guru 55345 points

The gpio numbering is done by this part of the code in <Processor SDK>/board-support/linux-<version>/drivers/gpio/gpiolib.c and it is contiguous,

static int gpiochip_add_to_list(struct gpio_chip *chip)
{
struct list_head *pos = &gpio_chips;
struct gpio_chip *_chip;
int err = 0;

/* find where to insert our chip */
list_for_each(pos, &gpio_chips) {
_chip = list_entry(pos, struct gpio_chip, list);
/* shall we insert before _chip? */
if (_chip->base >= chip->base + chip->ngpio)
break;
}

/* are we stepping on the chip right before? */
if (pos != &gpio_chips && pos->prev != &gpio_chips) {
_chip = list_entry(pos->prev, struct gpio_chip, list);
if (_chip->base + _chip->ngpio > chip->base) {
dev_err(chip->dev,
"GPIO integer space overlap, cannot add chip\n");
err = -EBUSY;
}
}

if (!err)
list_add_tail(&chip->list, pos);

return err;
}

so if you have gpio chip which is not enabled in the dts you should decrease the counting by 32.

Processors

Processors forum

AM437x GP EVM GPIO toggle fails