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SK-AM62: DTS File Relevent

veerapandiyan v
Intellectual 870 points

Part Number: SK-AM62

Hi Everyone,

I have use for am62x gp sitara board.  I am using mcu+sdk 9.0.0.3.

1. Wi-Fi is working fine but ble(wilink1837) module is Not enable. I referred am62x e3 revision schematic design seeing. Schematic design default selected for FT4232 module, how to change soc_uart1. I am so many times tried dts file UART1_FET_SEL is low but not working ble so please solve the problem. I attached screen shot below:

  

dts code below correct or not.

uart_dis: regulator-8 {
compatible = "regulator-fixed";
regulator-name = "uart_dis";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
vin-supply = <&vcc_1v8>;
regulator-always-on;
gpios = <&exp1 21 GPIO_ACTIVE_LOW>;
};

2. I have find out the bt level translator pin is MCASP1_BUF_BT_EN connected to IO expander p23 and bt enable pin Enable for BT Interface connected to  MCU_GPIO0_1 how to write dts file my dts file code correct or not tell below code and dts file attached:

bt_lten: regulator-9 {
compatible = "regulator-fixed";
regulator-name = "bt_lten";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
vin-supply = <&vcc_3v3_sys>;
/*regulator-always-on;*/
gpios = <&exp1 19 GPIO_ACTIVE_HIGH>;
};
ble_en: regulator-10 {
compatible = "regulator-fixed";
regulator-name = "ble_en";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
vin-supply = <&bt_lten>;
enable-active-high;
gpios = <&mcu_gpio0 1 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&ble_en_pins_default>;
};

ble_en_pins_default: ble-en-pins-default {
pinctrl-single,pins = <
AM62X_MCU_IOPAD(0x0000, PIN_OUTPUT, 7) /* (E8) MCU_SPI0_CS0.MCU_GPIO0_0 */
>;
};

// SPDX-License-Identifier: GPL-2.0
/*
 * AM625 SK: https://www.ti.com/lit/zip/sprr448
 *
 * Copyright (C) 2021-2022 Texas Instruments Incorporated - https://www.ti.com/
 */

/dts-v1/;

#include "k3-am62x-sk-common.dtsi"

/ {
	compatible = "ti,am625-sk", "ti,am625";
	model = "Texas Instruments AM625 SK";

	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>;

	};

	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 LM34936 */
		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>;
	};

	vcc_1v8: regulator-5 {
		/* 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;
	};

	wlan_lten: regulator-6 {
		compatible = "regulator-fixed";
		regulator-name = "wlan_lten";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		vin-supply = <&vcc_3v3_sys>;
		/*regulator-always-on;*/        
		gpios = <&exp1 11 GPIO_ACTIVE_HIGH>; 
	};

	wlan_en: regulator-7 {
		compatible = "regulator-fixed";
		regulator-name = "wlan_en";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		vin-supply = <&wlan_lten>;
		enable-active-high;
		gpios = <&main_gpio0 71 GPIO_ACTIVE_HIGH>;
		pinctrl-names = "default";
		pinctrl-0 = <&wlan_en_pins_default>;
	};
	uart_dis: regulator-8 {
		compatible = "regulator-fixed";
		regulator-name = "uart_dis";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		vin-supply = <&vcc_1v8>;
		regulator-always-on;
		gpios = <&exp1 21 GPIO_ACTIVE_LOW>;
	};
	bt_lten: regulator-9 {
		compatible = "regulator-fixed";
		regulator-name = "bt_lten";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		vin-supply = <&vcc_3v3_sys>;
		/*regulator-always-on;*/
		gpios = <&exp1 19 GPIO_ACTIVE_HIGH>;
	};
	ble_en: regulator-10 {
		compatible = "regulator-fixed";
		regulator-name = "ble_en";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		vin-supply = <&bt_lten>;
		enable-active-high;
		gpios = <&mcu_gpio0 1 GPIO_ACTIVE_HIGH>;
		pinctrl-names = "default";
		pinctrl-0 = <&ble_en_pins_default>;
	};
	
};

&main_pmx0 {
	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 */
		>;
	};


	vdd_sd_dv_pins_default: vdd-sd-dv-pins-default {
		pinctrl-single,pins = <
			AM62X_IOPAD(0x007c, PIN_INPUT, 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 */
		>;
	};

	wlan_en_pins_default: wlan-en-pins-default {
		pinctrl-single,pins = <
				AM62X_IOPAD(0x124, PIN_OUTPUT, 7) /* (A23) MMC2_SDCD.GPIO0_71 */
		>;
	};
	ble_en_pins_default: ble-en-pins-default {
		pinctrl-single,pins = <
				AM62X_MCU_IOPAD(0x0000, PIN_OUTPUT, 7) /* (E8) MCU_SPI0_CS0.MCU_GPIO0_0 */
		>;
	};

	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 */
		>;
	};
};

&main_i2c1 {
	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", "PD_I2C_IRQ",
				   "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>;
	};
};

&sdhci1 {
	vmmc-supply = <&vdd_mmc1>;
	vqmmc-supply = <&vdd_sd_dv>;
};

&sdhci2 {
	status = "okay";
	vmmc-supply = <&wlan_en>;
	pinctrl-names = "default";
	pinctrl-0 = <&main_mmc2_pins_default>;
	bus-width = <4>;
	non-removable;
	ti,fails-without-test-cd;
	cap-power-off-card;
	keep-power-in-suspend;
	ti,driver-strength-ohm = <50>;
	assigned-clocks = <&k3_clks 157 158>;
	assigned-clock-parents = <&k3_clks 157 160>;

	#address-cells = <1>;
	#size-cells = <0>;
	wlcore: wlcore@2 {
		compatible = "ti,wl1837";
		reg = <2>;
		pinctrl-names = "default";
		pinctrl-0 = <&main_wlirq_pins_default>;
		interrupt-parent = <&main_gpio0>;
		interrupts = <72 IRQ_TYPE_EDGE_RISING>;
	};
};

&cpsw3g {
	pinctrl-names = "default";
	pinctrl-0 = <&main_rgmii1_pins_default
		     &main_rgmii2_pins_default>;

	cpts@3d000 {
		/* MAP HW3_TS_PUSH to GENF1 */
		ti,pps = <2 1>;
	};
};

&cpsw_port2 {
	phy-mode = "rgmii-rxid";
	phy-handle = <&cpsw3g_phy1>;
};

&cpsw3g_mdio {
	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;
	};
};

&mailbox0_cluster0 {
	mbox_m4_0: mbox-m4-0 {
		ti,mbox-rx = <0 0 0>;
		ti,mbox-tx = <1 0 0>;
	};
};

&ospi0 {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&ospi0_pins_default>;

	flash@0{
		compatible = "jedec,spi-nor";
		reg = <0x0>;
		spi-tx-bus-width = <8>;
		spi-rx-bus-width = <8>;
		spi-max-frequency = <25000000>;
		cdns,tshsl-ns = <60>;
		cdns,tsd2d-ns = <60>;
		cdns,tchsh-ns = <60>;
		cdns,tslch-ns = <60>;
		cdns,read-delay = <4>;

		partitions {
			compatible = "fixed-partitions";
			#address-cells = <1>;
			#size-cells = <1>;

			partition@0 {
				label = "ospi.tiboot3";
				reg = <0x0 0x80000>;
			};

			partition@80000 {
				label = "ospi.tispl";
				reg = <0x80000 0x200000>;
			};

			partition@280000 {
				label = "ospi.u-boot";
				reg = <0x280000 0x400000>;
			};

			partition@680000 {
				label = "ospi.env";
				reg = <0x680000 0x40000>;
			};

			partition@6c0000 {
				label = "ospi.env.backup";
				reg = <0x6c0000 0x40000>;
			};

			partition@800000 {
				label = "ospi.rootfs";
				reg = <0x800000 0x37c0000>;
			};

			partition@3fc0000 {
				label = "ospi.phypattern";
				reg = <0x3fc0000 0x40000>;
			};
		};
	};
};

&tlv320aic3106 {
	DVDD-supply = <&vcc_1v8>;
};

#define K3_TS_OFFSET(pa, val)	(0x4+(pa)*4) (0x10000 | val)

&timesync_router {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&cpsw_cpts>;

	/* Use Time Sync Router to map GENF1 input to HW3_TS_PUSH output */
	cpsw_cpts: cpsw-cpts {
		pinctrl-single,pins = <
			/* pps [cpsw cpts genf1] in17 -> out12 [cpsw cpts hw3_push] */
			K3_TS_OFFSET(12, 17)
			>;
	};
};

Regards

Veerapandiyan V.

  • 0
    TI__Mastermind 36470 points

    Hello Veerapandiyan,

    A few things: What are you trying to bring up on the WL18x? Are you trying to get to a HCI interface? If so, I don't see UART muxed in your DTS.

    Also, Can you confirm if the BT_EN pin is getting set high by checking with a multimeter or logic analyzer? 

  • 0 in reply to Sabeeh Khan1
    Intellectual 870 points

    Hi Sabeeh,

        I checked gpioinfo that pin BT_EN  is active high but not working bluetooth. how to fix programme.

    Regards,

    Veerapandiyan V.

  • 0 in reply to veerapandiyan v
    TI__Mastermind 36470 points

    Hi Veerapandiyan,

    The WL18xMOD uses UART for BT communication. I don't see the UART pins in the DTS, so if you can enable the UART in the DTS then that should make progress. Let me know if you're unable to do this.

  • 0 in reply to Sabeeh Khan1
    Intellectual 870 points

    Hi Sabeeh,

     AM62x Board is defaultly connected for FT4232 Module  soc_uart1. how to change FT4232 module to BT module please send dts file code.

    veerapandiyan v said:

     

    dts code below correct or not.

    uart_dis: regulator-8 {
    compatible = "regulator-fixed";
    regulator-name = "uart_dis";
    regulator-min-microvolt = <1800000>;
    regulator-max-microvolt = <1800000>;
    vin-supply = <&vcc_1v8>;
    regulator-always-on;
    gpios = <&exp1 21 GPIO_ACTIVE_LOW>;
    };

    Regards, 

    Veerapandiyan V.

  • 0 in reply to veerapandiyan v
    TI__Mastermind 36470 points

    Hi Veerapandiyan,

    I can help you with the DTS, please give me atleast a week and I will get back to you.

    Thanks.

  • 0 in reply to Sabeeh Khan1
    Intellectual 870 points

    Hi Sabeeh,

    Ok. I will wait.

    Regards,

    Veerapandiyan V.

  • +1 in reply to veerapandiyan v
    TI__Mastermind 36470 points

    Hi Veerapandiyan,

    I am attaching a diff that will apply to ti/k3-am625-sk.dts. I was able to then connect to the bluetooth with "hciattach ttyS4 texas -s 115200"

    Fullscreen am62sk_bt_en.diff Download 
    diff --git a/arch/arm64/boot/dts/ti/k3-am625-sk.dts b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
index 83525949aafd..8bbde4f3cde0 100644
--- a/arch/arm64/boot/dts/ti/k3-am625-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
@@ -13,6 +13,10 @@ / {
 	compatible = "ti,am625-sk", "ti,am625";
 	model = "Texas Instruments AM625 SK";
 
+	aliases {
+		serial4 = &main_uart1;
+	};
+
 	opp-table {
 		/* Add 1.4GHz OPP for am625-sk board. Requires VDD_CORE to be at 0.85V */
 		opp-1400000000 {
@@ -201,6 +205,33 @@ main_wlirq_pins_default: main-wlirq-pins-default {
 			AM62X_IOPAD(0x128, PIN_INPUT, 7) /* (B23) MMC2_SDWP.GPIO0_72 */
 		>;
 	};
+
+	main_uart1_pins_default: main-uart1-pins-default {
+		pinctrl-single,pins = <
+			AM62X_IOPAD(0x1ac, PIN_INPUT, 2) /* (E19) MCASP0_AFSR.UART1_RXD */
+			AM62X_IOPAD(0x1b0, PIN_OUTPUT, 2) /* (A20) MCASP0_ACLKR.UART1_TXD */
+			AM62X_IOPAD(0x198, PIN_OUTPUT, 2) /* (A19) MCASP0_AXR2.UART1_RTSn */
+			AM62X_IOPAD(0x194, PIN_INPUT, 2) /* (B19) MCASP0_AXR3.UART1_CTSn */
+		>;
+	};
+};
+
+&main_uart1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_uart1_pins_default &mcu_bt_en_pins_default>;
+
+	bluetooth {
+		enable-gpios = <&mcu_gpio0 0 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&mcu_pmx0 {
+	mcu_bt_en_pins_default: bt-en-pins-default {
+		pinctrl-single,pins = <
+			AM62X_MCU_IOPAD(0x000, PIN_OUTPUT, 7) /* MCU_SPI0_CS0.MCU_GPIO0_0 */ 
+		>;
+	};
 };
 
 &main_i2c1 {
@@ -229,6 +260,13 @@ exp1: gpio@22 {
 
 		pinctrl-names = "default";
 		pinctrl-0 = <&main_gpio1_ioexp_intr_pins_default>;
+
+		buf_en {
+			gpio-hog;
+			gpios = <10 GPIO_ACTIVE_LOW>;
+			output-high;
+			line-name = "UART1_BUF_EN";
+		};
 	};
 };

  • 0 in reply to Sabeeh Khan1
    Intellectual 870 points

    Hi Sabeeh,

    i was working with ti-processor-sdk-linux-am62xx-evm-09.00.00.03 , so in dts i gave ttys1 in alias and the used following command

           hciattach ttyS1 texas -s 115200  and it worked for me. 

    Thank you.

    Regards
    VJ PANDI

  • 0 in reply to veerapandiyan v
    Intellectual 870 points

    Hi Sabeeh,

    I have another one doubt Bluetooth connect after 2 seconds automatically disconnected for Samsung mobile phone (other mobiles not connect for Bluetooth) how to solve this problem. I referring google is telling update driver how to update driver please tell me.

    Regards
    VJ PANDI

  • 0 in reply to veerapandiyan v
    TI__Mastermind 36470 points

    Hi,

    Could you please explain further or provide logs on what exactly the issue you are experiencing is? What is the setup you are using, etc.?