Original question:
Part Number: PROCESSOR-SDK-AM62X
Other Parts Discussed in Thread: SK-AM62
Hi, I am facing problems after modifying the common.dtsi file in both u-boot and linux. After adding the gpio pinmux inside the device tree nothing happens, but when I delete or change the gpio pins available, it fails to boot. Is there any other files that needs to be modify before booting in order to make the gpio pins high and low?
Hi,
I had started trying to boot from SD card these days, where I added the pinmux in common.dtsi file for GPIO0_38 and GPIO0_39 to test pin 16 (38) and pin 18 (39) of J3.
// SPDX-License-Identifier: GPL-2.0
/*
* Common dtsi for AM62x SK and derivatives
*
* Copyright (C) 2021-2022 Texas Instruments Incorporated - https://www.ti.com/
*/
/ {
aliases {
serial2 = &main_uart0;
mmc0 = &sdhci0;
mmc1 = &sdhci1;
mmc2 = &sdhci2;
spi0 = &ospi0;
usb0 = &usb0;
usb1 = &usb1;
ethernet0 = &cpsw_port1;
ethernet1 = &cpsw_port2;
};
chosen {
stdout-path = "serial2:115200n8";
bootargs = "console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000";
};
opp-table {
/* Add 1.4GHz OPP for am625-sk board. Requires VDD_CORE to be at 0.85V */
opp-1400000000 {
opp-hz = /bits/ 64 <1400000000>;
opp-supported-hw = <0x01 0x0004>;
clock-latency-ns = <6000000>;
};
};
memory@80000000 {
device_type = "memory";
/* 2G RAM */
reg = <0x00000000 0x80000000 0x00000000 0x80000000>;
};
reserved-memory {
#address-cells = <2>;
#size-cells = <2>;
ranges;
rtos_ipc_memory_region: ipc-memories@9c800000 {
compatible = "shared-dma-pool";
reg = <0x00 0x9c800000 0x00 0x00300000>;
no-map;
};
mcu_m4fss_dma_memory_region: m4f-dma-memory@9cb00000 {
compatible = "shared-dma-pool";
reg = <0x00 0x9cb00000 0x00 0x100000>;
no-map;
};
mcu_m4fss_memory_region: m4f-memory@9cc00000 {
compatible = "shared-dma-pool";
reg = <0x00 0x9cc00000 0x00 0xd00000>;
no-map;
};
wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9d900000 {
compatible = "shared-dma-pool";
reg = <0x00 0x9d900000 0x00 0x00100000>;
no-map;
};
wkup_r5fss0_core0_memory_region: r5f-memory@9da00000 {
compatible = "shared-dma-pool";
reg = <0x00 0x9da00000 0x00 0x00d00000>;
no-map;
};
lpm_ctx_ddr: lpm-memory@9e700000 {
reg = <0x00 0x9e700000 0x00 0x80000>;
alignment = <0x1000>;
};
secure_tfa_ddr: tfa@9e780000 {
reg = <0x00 0x9e780000 0x00 0x80000>;
alignment = <0x1000>;
no-map;
};
secure_ddr: optee@9e800000 {
reg = <0x00 0x9e800000 0x00 0x01800000>; /* for OP-TEE */
alignment = <0x1000>;
no-map;
};
};
vmain_pd: regulator-0 {
/* TPS65988 PD CONTROLLER OUTPUT */
compatible = "regulator-fixed";
regulator-name = "vmain_pd";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
regulator-always-on;
regulator-boot-on;
};
vcc_5v0: regulator-1 {
/* Output of TPS630702 */
compatible = "regulator-fixed";
regulator-name = "vcc_5v0";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
vin-supply = <&vmain_pd>;
regulator-always-on;
regulator-boot-on;
};
vcc_3v3_sys: regulator-2 {
/* output of LM61460-Q1 */
compatible = "regulator-fixed";
regulator-name = "vcc_3v3_sys";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
vin-supply = <&vmain_pd>;
regulator-always-on;
regulator-boot-on;
};
vdd_mmc1: regulator-3 {
/* TPS22918DBVR */
compatible = "regulator-fixed";
regulator-name = "vdd_mmc1";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
enable-active-high;
vin-supply = <&vcc_3v3_sys>;
gpio = <&exp1 3 GPIO_ACTIVE_HIGH>;
};
vdd_sd_dv: regulator-4 {
/* Output of TLV71033 */
compatible = "regulator-gpio";
regulator-name = "tlv71033";
pinctrl-names = "default";
pinctrl-0 = <&vdd_sd_dv_pins_default>;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
vin-supply = <&vcc_5v0>;
gpios = <&main_gpio0 31 GPIO_ACTIVE_HIGH>;
states = <1800000 0x0>,
<3300000 0x1>;
};
wlan_lten: regulator-5 {
compatible = "regulator-fixed";
regulator-name = "wlan_lten";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
vin-supply = <&vcc_3v3_sys>;
gpios = <&exp1 11 GPIO_ACTIVE_LOW>;
};
wlan_en: regulator-6 {
/* OUTPUT of SN74AVC2T244DQMR */
compatible = "regulator-fixed";
regulator-name = "wlan_en";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
enable-active-high;
regulator-always-on;
vin-supply = <&wlan_lten>;
gpios = <&main_gpio0 71 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&wlan_en_pins_default>;
};
vcc_1v8: regulator-7 {
/* output of TPS6282518DMQ */
compatible = "regulator-fixed";
regulator-name = "vcc_1v8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
vin-supply = <&vcc_3v3_sys>;
regulator-always-on;
regulator-boot-on;
};
tlv320_mclk: clk-0 {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <12288000>;
};
sound {
compatible = "simple-audio-card";
simple-audio-card,name = "AM62x-SKEVM";
simple-audio-card,widgets =
"Headphone", "Headphone Jack";
simple-audio-card,routing =
"Headphone Jack", "HPLOUT",
"Headphone Jack", "HPROUT";
simple-audio-card,format = "dsp_b";
simple-audio-card,bitclock-master = <&sound_master>;
simple-audio-card,frame-master = <&sound_master>;
simple-audio-card,bitclock-inversion;
simple-audio-card,cpu {
sound-dai = <&mcasp1>;
};
sound_master: simple-audio-card,codec {
sound-dai = <&tlv320aic3106>;
clocks = <&tlv320_mclk>;
};
};
leds {
compatible = "gpio-leds";
pinctrl-names = "default";
pinctrl-0 = <&usr_led_pins_default>;
led-0 {
label = "am62-sk:green:heartbeat";
gpios = <&main_gpio1 49 GPIO_ACTIVE_HIGH>;
linux,default-trigger = "heartbeat";
function = LED_FUNCTION_HEARTBEAT;
default-state = "off";
};
};
hdmi_mstrclk: hdmi-mstrclk {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <12288000>;
};
hdmi: connector {
compatible = "hdmi-connector";
label = "hdmi";
type = "a";
port {
hdmi_connector_in: endpoint {
remote-endpoint = <&sii9022_out>;
};
};
};
};
&main_pmx0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&test_gpio_default>;
+ test_gpio_default: test-gpio {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x009c, PIN_INPUT_PULLDOWN, 7) /* (V25) GPMC0_WAIT1.GPIO0_38 */
+ AM62X_IOPAD(0x00a0, PIN_INPUT_PULLUP, 7) /* (K25) GPMC0_WPn.GPIO0_39 */
+ >;
+ };
main_uart0_pins_default: main-uart0-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x1c8, PIN_INPUT, 0) /* (D14) UART0_RXD */
AM62X_IOPAD(0x1cc, PIN_OUTPUT, 0) /* (E14) UART0_TXD */
>;
};
main_i2c0_pins_default: main-i2c0-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x1e0, PIN_INPUT_PULLUP, 0) /* (B16) I2C0_SCL */
AM62X_IOPAD(0x1e4, PIN_INPUT_PULLUP, 0) /* (A16) I2C0_SDA */
>;
};
main_i2c1_pins_default: main-i2c1-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x1e8, PIN_INPUT_PULLUP, 0) /* (B17) I2C1_SCL */
AM62X_IOPAD(0x1ec, PIN_INPUT_PULLUP, 0) /* (A17) I2C1_SDA */
>;
};
main_i2c2_pins_default: main-i2c2-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x0b0, PIN_INPUT_PULLUP, 1) /* (K22) GPMC0_CSn2.I2C2_SCL */
AM62X_IOPAD(0x0b4, PIN_INPUT_PULLUP, 1) /* (K24) GPMC0_CSn3.I2C2_SDA */
>;
};
main_mmc0_pins_default: main-mmc0-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x220, PIN_INPUT, 0) /* (Y3) MMC0_CMD */
AM62X_IOPAD(0x218, PIN_INPUT, 0) /* (AB1) MMC0_CLK */
AM62X_IOPAD(0x214, PIN_INPUT, 0) /* (AA2) MMC0_DAT0 */
AM62X_IOPAD(0x210, PIN_INPUT, 0) /* (AA1) MMC0_DAT1 */
AM62X_IOPAD(0x20c, PIN_INPUT, 0) /* (AA3) MMC0_DAT2 */
AM62X_IOPAD(0x208, PIN_INPUT, 0) /* (Y4) MMC0_DAT3 */
AM62X_IOPAD(0x204, PIN_INPUT, 0) /* (AB2) MMC0_DAT4 */
AM62X_IOPAD(0x200, PIN_INPUT, 0) /* (AC1) MMC0_DAT5 */
AM62X_IOPAD(0x1fc, PIN_INPUT, 0) /* (AD2) MMC0_DAT6 */
AM62X_IOPAD(0x1f8, PIN_INPUT, 0) /* (AC2) MMC0_DAT7 */
>;
};
main_mmc1_pins_default: main-mmc1-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x23c, PIN_INPUT, 0) /* (A21) MMC1_CMD */
AM62X_IOPAD(0x234, PIN_INPUT, 0) /* (B22) MMC1_CLK */
AM62X_IOPAD(0x230, PIN_INPUT, 0) /* (A22) MMC1_DAT0 */
AM62X_IOPAD(0x22c, PIN_INPUT, 0) /* (B21) MMC1_DAT1 */
AM62X_IOPAD(0x228, PIN_INPUT, 0) /* (C21) MMC1_DAT2 */
AM62X_IOPAD(0x224, PIN_INPUT, 0) /* (D22) MMC1_DAT3 */
AM62X_IOPAD(0x240, PIN_INPUT, 0) /* (D17) MMC1_SDCD */
>;
};
wlan_en_pins_default: wlan-en-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x124, PIN_OUTPUT, 7) /* (A23) MMC2_SDCD.GPIO0_71 */
>;
};
main_mmc2_pins_default: main-mmc2-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x120, PIN_INPUT, 0) /* (C24) MMC2_CMD */
AM62X_IOPAD(0x118, PIN_INPUT, 0) /* (D25) MMC2_CLK */
AM62X_IOPAD(0x114, PIN_INPUT, 0) /* (B24) MMC2_DAT0 */
AM62X_IOPAD(0x110, PIN_INPUT, 0) /* (C25) MMC2_DAT1 */
AM62X_IOPAD(0x10c, PIN_INPUT, 0) /* (E23) MMC2_DAT2 */
AM62X_IOPAD(0x108, PIN_INPUT, 0) /* (D24) MMC2_DAT3 */
AM62X_IOPAD(0x11c, PIN_INPUT, 0) /* (#N/A) MMC2_CLKB */
>;
};
main_wlirq_pins_default: main-wlirq-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x128, PIN_INPUT, 7) /* (B23) MMC2_SDWP.GPIO0_72 */
>;
};
usr_led_pins_default: usr-led-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x244, PIN_OUTPUT, 7) /* (C17) MMC1_SDWP.GPIO1_49 */
>;
};
main_mdio1_pins_default: main-mdio1-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x160, PIN_OUTPUT, 0) /* (AD24) MDIO0_MDC */
AM62X_IOPAD(0x15c, PIN_INPUT, 0) /* (AB22) MDIO0_MDIO */
>;
};
main_rgmii1_pins_default: main-rgmii1-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x14c, PIN_INPUT, 0) /* (AB17) RGMII1_RD0 */
AM62X_IOPAD(0x150, PIN_INPUT, 0) /* (AC17) RGMII1_RD1 */
AM62X_IOPAD(0x154, PIN_INPUT, 0) /* (AB16) RGMII1_RD2 */
AM62X_IOPAD(0x158, PIN_INPUT, 0) /* (AA15) RGMII1_RD3 */
AM62X_IOPAD(0x148, PIN_INPUT, 0) /* (AD17) RGMII1_RXC */
AM62X_IOPAD(0x144, PIN_INPUT, 0) /* (AE17) RGMII1_RX_CTL */
AM62X_IOPAD(0x134, PIN_OUTPUT, 0) /* (AE20) RGMII1_TD0 */
AM62X_IOPAD(0x138, PIN_OUTPUT, 0) /* (AD20) RGMII1_TD1 */
AM62X_IOPAD(0x13c, PIN_OUTPUT, 0) /* (AE18) RGMII1_TD2 */
AM62X_IOPAD(0x140, PIN_OUTPUT, 0) /* (AD18) RGMII1_TD3 */
AM62X_IOPAD(0x130, PIN_OUTPUT, 0) /* (AE19) RGMII1_TXC */
AM62X_IOPAD(0x12c, PIN_OUTPUT, 0) /* (AD19) RGMII1_TX_CTL */
>;
};
main_rgmii2_pins_default: main-rgmii2-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x184, PIN_INPUT, 0) /* (AE23) RGMII2_RD0 */
AM62X_IOPAD(0x188, PIN_INPUT, 0) /* (AB20) RGMII2_RD1 */
AM62X_IOPAD(0x18c, PIN_INPUT, 0) /* (AC21) RGMII2_RD2 */
AM62X_IOPAD(0x190, PIN_INPUT, 0) /* (AE22) RGMII2_RD3 */
AM62X_IOPAD(0x180, PIN_INPUT, 0) /* (AD23) RGMII2_RXC */
AM62X_IOPAD(0x17c, PIN_INPUT, 0) /* (AD22) RGMII2_RX_CTL */
AM62X_IOPAD(0x16c, PIN_OUTPUT, 0) /* (Y18) RGMII2_TD0 */
AM62X_IOPAD(0x170, PIN_OUTPUT, 0) /* (AA18) RGMII2_TD1 */
AM62X_IOPAD(0x174, PIN_OUTPUT, 0) /* (AD21) RGMII2_TD2 */
AM62X_IOPAD(0x178, PIN_OUTPUT, 0) /* (AC20) RGMII2_TD3 */
AM62X_IOPAD(0x168, PIN_OUTPUT, 0) /* (AE21) RGMII2_TXC */
AM62X_IOPAD(0x164, PIN_OUTPUT, 0) /* (AA19) RGMII2_TX_CTL */
>;
};
ospi0_pins_default: ospi0-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x000, PIN_OUTPUT, 0) /* (H24) OSPI0_CLK */
AM62X_IOPAD(0x02c, PIN_OUTPUT, 0) /* (F23) OSPI0_CSn0 */
AM62X_IOPAD(0x00c, PIN_INPUT, 0) /* (E25) OSPI0_D0 */
AM62X_IOPAD(0x010, PIN_INPUT, 0) /* (G24) OSPI0_D1 */
AM62X_IOPAD(0x014, PIN_INPUT, 0) /* (F25) OSPI0_D2 */
AM62X_IOPAD(0x018, PIN_INPUT, 0) /* (F24) OSPI0_D3 */
AM62X_IOPAD(0x01c, PIN_INPUT, 0) /* (J23) OSPI0_D4 */
AM62X_IOPAD(0x020, PIN_INPUT, 0) /* (J25) OSPI0_D5 */
AM62X_IOPAD(0x024, PIN_INPUT, 0) /* (H25) OSPI0_D6 */
AM62X_IOPAD(0x028, PIN_INPUT, 0) /* (J22) OSPI0_D7 */
AM62X_IOPAD(0x008, PIN_INPUT, 0) /* (J24) OSPI0_DQS */
>;
};
main_dss0_pins_default: main-dss0-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x0100, PIN_OUTPUT, 0) /* (AC25) VOUT0_VSYNC */
AM62X_IOPAD(0x00f8, PIN_OUTPUT, 0) /* (AB24) VOUT0_HSYNC */
AM62X_IOPAD(0x0104, PIN_OUTPUT, 0) /* (AC24) VOUT0_PCLK */
AM62X_IOPAD(0x00fc, PIN_OUTPUT, 0) /* (Y20) VOUT0_DE */
AM62X_IOPAD(0x00b8, PIN_OUTPUT, 0) /* (U22) VOUT0_DATA0 */
AM62X_IOPAD(0x00bc, PIN_OUTPUT, 0) /* (V24) VOUT0_DATA1 */
AM62X_IOPAD(0x00c0, PIN_OUTPUT, 0) /* (W25) VOUT0_DATA2 */
AM62X_IOPAD(0x00c4, PIN_OUTPUT, 0) /* (W24) VOUT0_DATA3 */
AM62X_IOPAD(0x00c8, PIN_OUTPUT, 0) /* (Y25) VOUT0_DATA4 */
AM62X_IOPAD(0x00cc, PIN_OUTPUT, 0) /* (Y24) VOUT0_DATA5 */
AM62X_IOPAD(0x00d0, PIN_OUTPUT, 0) /* (Y23) VOUT0_DATA6 */
AM62X_IOPAD(0x00d4, PIN_OUTPUT, 0) /* (AA25) VOUT0_DATA7 */
AM62X_IOPAD(0x00d8, PIN_OUTPUT, 0) /* (V21) VOUT0_DATA8 */
AM62X_IOPAD(0x00dc, PIN_OUTPUT, 0) /* (W21) VOUT0_DATA9 */
AM62X_IOPAD(0x00e0, PIN_OUTPUT, 0) /* (V20) VOUT0_DATA10 */
AM62X_IOPAD(0x00e4, PIN_OUTPUT, 0) /* (AA23) VOUT0_DATA11 */
AM62X_IOPAD(0x00e8, PIN_OUTPUT, 0) /* (AB25) VOUT0_DATA12 */
AM62X_IOPAD(0x00ec, PIN_OUTPUT, 0) /* (AA24) VOUT0_DATA13 */
AM62X_IOPAD(0x00f0, PIN_OUTPUT, 0) /* (Y22) VOUT0_DATA14 */
AM62X_IOPAD(0x00f4, PIN_OUTPUT, 0) /* (AA21) VOUT0_DATA15 */
AM62X_IOPAD(0x005c, PIN_OUTPUT, 1) /* (R24) GPMC0_AD8.VOUT0_DATA16 */
AM62X_IOPAD(0x0060, PIN_OUTPUT, 1) /* (R25) GPMC0_AD9.VOUT0_DATA17 */
AM62X_IOPAD(0x0064, PIN_OUTPUT, 1) /* (T25) GPMC0_AD10.VOUT0_DATA18 */
AM62X_IOPAD(0x0068, PIN_OUTPUT, 1) /* (R21) GPMC0_AD11.VOUT0_DATA19 */
AM62X_IOPAD(0x006c, PIN_OUTPUT, 1) /* (T22) GPMC0_AD12.VOUT0_DATA20 */
AM62X_IOPAD(0x0070, PIN_OUTPUT, 1) /* (T24) GPMC0_AD13.VOUT0_DATA21 */
AM62X_IOPAD(0x0074, PIN_OUTPUT, 1) /* (U25) GPMC0_AD14.VOUT0_DATA22 */
AM62X_IOPAD(0x0078, PIN_OUTPUT, 1) /* (U24) GPMC0_AD15.VOUT0_DATA23 */
>;
};
vdd_sd_dv_pins_default: vdd-sd-dv-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x07c, PIN_OUTPUT, 7) /* (P25) GPMC0_CLK.GPIO0_31 */
>;
};
main_gpio1_ioexp_intr_pins_default: main-gpio1-ioexp-intr-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x01d4, PIN_INPUT, 7) /* (B15) UART0_RTSn.GPIO1_23 */
>;
};
main_usb1_pins_default: main-usb1-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x0258, PIN_OUTPUT, 0) /* (F18) USB1_DRVVBUS */
>;
};
main_mcasp1_pins_default: main-mcasp1-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x0090, PIN_INPUT, 2) /* (M24) GPMC0_BE0N_CLE.MCASP1_ACLKX */
AM62X_IOPAD(0x0098, PIN_INPUT, 2) /* (U23) GPMC0_WAIT0.MCASP1_AFSX */
AM62X_IOPAD(0x008c, PIN_OUTPUT, 2) /* (L25) GPMC0_WEN.MCASP1_AXR0 */
AM62X_IOPAD(0x0084, PIN_INPUT, 2) /* (L23) GPMC0_ADVN_ALE.MCASP1_AXR2 */
>;
};
};
&wkup_uart0 {
/* WKUP UART0 is used by DM firmware */
status = "reserved";
};
&mcu_uart0 {
status = "disabled";
};
&main_uart0 {
pinctrl-names = "default";
pinctrl-0 = <&main_uart0_pins_default>;
};
&main_uart1 {
/* Main UART1 is used by TIFS firmware */
status = "reserved";
};
&main_uart2 {
status = "disabled";
};
&main_uart3 {
status = "disabled";
};
&main_uart4 {
status = "disabled";
};
&main_uart5 {
status = "disabled";
};
&main_uart6 {
status = "disabled";
};
&mcu_i2c0 {
status = "disabled";
};
&wkup_i2c0 {
status = "disabled";
};
&main_i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&main_i2c0_pins_default>;
clock-frequency = <400000>;
typec_pd: usb-pd@3f {
compatible = "ti,tps6598x";
reg = <0x3f>;
connector {
ports {
#address-cells = <1>;
#size-cells = <0>;
port@1 {
reg = <1>;
usb_con_hs: endpoint {
remote-endpoint = <&typec_hs>;
};
};
};
};
};
};
&main_i2c1 {
pinctrl-names = "default";
pinctrl-0 = <&main_i2c1_pins_default>;
clock-frequency = <100000>;
exp1: gpio@22 {
compatible = "ti,tca6424";
reg = <0x22>;
gpio-controller;
#gpio-cells = <2>;
gpio-line-names = "GPIO_CPSW2_RST", "GPIO_CPSW1_RST",
"PRU_DETECT", "MMC1_SD_EN",
"VPP_LDO_EN", "EXP_PS_3V3_En",
"EXP_PS_5V0_En", "EXP_HAT_DETECT",
"GPIO_AUD_RSTn", "GPIO_eMMC_RSTn",
"UART1_FET_BUF_EN", "WL_LT_EN",
"GPIO_HDMI_RSTn", "CSI_GPIO1",
"CSI_GPIO2", "PRU_3V3_EN",
"HDMI_INTn", "TEST_GPIO2",
"MCASP1_FET_EN", "MCASP1_BUF_BT_EN",
"MCASP1_FET_SEL", "UART1_FET_SEL",
"TSINT#", "IO_EXP_TEST_LED";
interrupt-parent = <&main_gpio1>;
interrupts = <23 IRQ_TYPE_EDGE_FALLING>;
interrupt-controller;
#interrupt-cells = <2>;
pinctrl-names = "default";
pinctrl-0 = <&main_gpio1_ioexp_intr_pins_default>;
};
sii9022: sii9022@3b {
compatible = "sil,sii9022";
reg = <0x3b>;
clocks = <&hdmi_mstrclk>;
clock-names = "mclk";
interrupt-parent = <&exp1>;
interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
sii9022_in: endpoint {
remote-endpoint = <&dpi1_out>;
};
};
port@1 {
reg = <1>;
sii9022_out: endpoint {
remote-endpoint = <&hdmi_connector_in>;
};
};
};
};
tlv320aic3106: audio-codec@1b {
#sound-dai-cells = <0>;
compatible = "ti,tlv320aic3106";
reg = <0x1b>;
/* Regulators */
AVDD-supply = <&vcc_3v3_sys>;
IOVDD-supply = <&vcc_3v3_sys>;
DRVDD-supply = <&vcc_3v3_sys>;
DVDD-supply = <&vcc_1v8>;
};
};
&main_i2c2 {
status = "disabled";
};
&main_i2c3 {
status = "disabled";
};
&sdhci0 {
pinctrl-names = "default";
pinctrl-0 = <&main_mmc0_pins_default>;
ti,driver-strength-ohm = <50>;
disable-wp;
};
&sdhci1 {
/* SD/MMC */
vmmc-supply = <&vdd_mmc1>;
vqmmc-supply = <&vdd_sd_dv>;
pinctrl-names = "default";
pinctrl-0 = <&main_mmc1_pins_default>;
ti,driver-strength-ohm = <50>;
disable-wp;
no-1-8-v;
};
&usbss0 {
ti,vbus-divider;
};
&usb0 {
#address-cells = <1>;
#size-cells = <0>;
usb-role-switch;
port@1 {
reg = <1>;
typec_hs: endpoint {
remote-endpoint = <&usb_con_hs>;
};
};
};
&usb1 {
dr_mode = "host";
pinctrl-names = "default";
pinctrl-0 = <&main_usb1_pins_default>;
};
&cpsw3g {
pinctrl-names = "default";
pinctrl-0 = <&main_mdio1_pins_default
&main_rgmii1_pins_default
&main_rgmii2_pins_default>;
};
&cpsw_port1 {
phy-mode = "rgmii-rxid";
phy-handle = <&cpsw3g_phy0>;
};
&cpsw_port2 {
phy-mode = "rgmii-rxid";
phy-handle = <&cpsw3g_phy1>;
};
&cpsw3g_mdio {
cpsw3g_phy0: ethernet-phy@0 {
reg = <0>;
ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
ti,min-output-impedance;
};
cpsw3g_phy1: ethernet-phy@1 {
reg = <1>;
ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
ti,min-output-impedance;
};
};
&dss {
pinctrl-names = "default";
pinctrl-0 = <&main_dss0_pins_default>;
};
&dss_ports {
#address-cells = <1>;
#size-cells = <0>;
/* VP2: DPI Output */
port@1 {
reg = <1>;
dpi1_out: endpoint {
remote-endpoint = <&sii9022_in>;
};
};
};
&mcasp0 {
status = "disabled";
};
&mcasp1 {
status = "okay";
#sound-dai-cells = <0>;
pinctrl-names = "default";
pinctrl-0 = <&main_mcasp1_pins_default>;
op-mode = <0>; /* MCASP_IIS_MODE */
tdm-slots = <2>;
serial-dir = < /* 0: INACTIVE, 1: TX, 2: RX */
1 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
>;
tx-num-evt = <32>;
rx-num-evt = <32>;
};
&mcasp2 {
status = "disabled";
};
&mailbox0_cluster0 {
mbox_m4_0: mbox-m4-0 {
ti,mbox-rx = <0 0 0>;
ti,mbox-tx = <1 0 0>;
};
mbox_r5_0: mbox-r5-0 {
ti,mbox-rx = <2 0 0>;
ti,mbox-tx = <3 0 0>;
};
};
&ospi0 {
pinctrl-names = "default";
pinctrl-0 = <&ospi0_pins_default>;
};
&mcu_m4fss {
mboxes = <&mailbox0_cluster0 &mbox_m4_0>;
memory-region = <&mcu_m4fss_dma_memory_region>,
<&mcu_m4fss_memory_region>;
};
&wkup_r5fss0_core0 {
mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
<&wkup_r5fss0_core0_memory_region>;
};
&main_mcan0 {
status = "disabled";
};
&mcu_rti0 {
/* MCU RTI0 is used by M4F firmware */
status = "reserved";
};
&wkup_rti0 {
/* WKUP RTI0 is used by DM firmware */
status = "reserved";
};
&epwm0 {
status = "disabled";
};
&epwm1 {
status = "disabled";
};
&epwm2 {
status = "disabled";
};
&ecap0 {
status = "disabled";
};
&ecap1 {
status = "disabled";
};
&ecap2 {
status = "disabled";
};
After that, I try to build it using "make linux-dtbs". I had copy these 4 dtb files below to my sd card boot folder.
After booting into Arago Project, I had try these commands below to see if the gpio turns high or low:
echo 439 > /sys/class/gpio/export
echo 440 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio440/direction
echo in > /sys/class/gpio/gpio439/direction
echo 1 > /sys/class/gpio/gpio440/value
cat /sys/class/gpio/gpio440/value
cat /sys/class/gpio/gpio439/value
But the result I got is that the GPIO0_39 will always remains at 0.6V, whenever I echo it 1 or 0.
What will be the problem?
