From bb86b4b0bbae12341df16fedf51aeda480364fbf Mon Sep 17 00:00:00 2001

From: Peter Robinson <pbrobinson@gmail.com>

Date: Thu, 19 Apr 2018 19:35:58 +0100

Subject: [PATCH] ARM: dts: Add am335x-pocketbeagle

PocketBeagle is an ultra-tiny-yet-complete open-source USB-key-fob computer.

This board family can be indentified by the A335PBGL in the at24 eeprom:

A2: [aa 55 33 ee 41 33 33 35  50 42 47 4c 30 30 41 32 |.U3.A335PBGL00A2|]

http://beagleboard.org/pocket

https://github.com/beagleboard/pocketbeagle

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>

CC: Tony Lindgren <tony@atomide.com>

CC: Jason Kridner <jkridner@beagleboard.org>

CC: Drew Fustini <drew@beagleboard.org>

CC: Peter Robinson <pbrobinson@redhat.com>

---

Changes in v3:

- Fix: Board eeprom in subject message. (accidently copied PocketBone)

Changes in v2:

- Use SPDX tags.

- Use eeprom@50, remove repeated node and fix  and remove '_' to fix node_name_chars_strict Warning

- Fix: PocketBeagle Name in Subject (not PocketBeagle Blue)

- Fix: leds remove '_' to fix node_name_chars_strict warning

- Fix: node_name_chars_strict pinmux_*_pins label's.

---

 arch/arm/boot/dts/Makefile                   |   1 +

 arch/arm/boot/dts/am335x-osd335x-common.dtsi | 124 ++++++++++

 arch/arm/boot/dts/am335x-pocketbeagle.dts    | 237 +++++++++++++++++++

 3 files changed, 362 insertions(+)

 create mode 100644 arch/arm/boot/dts/am335x-osd335x-common.dtsi

 create mode 100644 arch/arm/boot/dts/am335x-pocketbeagle.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile

index ade7a38543dc..a632bbef01f5 100644

--- a/arch/arm/boot/dts/Makefile

+++ b/arch/arm/boot/dts/Makefile

@@ -675,6 +675,7 @@ dtb-$(CONFIG_SOC_AM33XX) += \

 	am335x-nano.dtb \

 	am335x-pepper.dtb \

 	am335x-phycore-rdk.dtb \

+	am335x-pocketbeagle.dtb \

 	am335x-shc.dtb \

 	am335x-sbc-t335.dtb \

 	am335x-sl50.dtb \

diff --git a/arch/arm/boot/dts/am335x-osd335x-common.dtsi b/arch/arm/boot/dts/am335x-osd335x-common.dtsi

new file mode 100644

index 000000000000..f8ff473f94f0

--- /dev/null

+++ b/arch/arm/boot/dts/am335x-osd335x-common.dtsi

@@ -0,0 +1,124 @@

+// SPDX-License-Identifier: GPL-2.0

+/*

+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/

+ *

+ * Author: Robert Nelson <robertcnelson@gmail.com>

+ */

+

+/ {

+	cpus {

+		cpu@0 {

+			cpu0-supply = <&dcdc2_reg>;

+		};

+	};

+

+	memory@80000000 {

+		device_type = "memory";

+		reg = <0x80000000 0x20000000>; /* 512 MB */

+	};

+};

+

+&cpu0_opp_table {

+	/*

+	* Octavo Systems:

+	* The EFUSE_SMA register is not programmed for any of the AM335x wafers

+	* we get and we are not programming them during our production test.

+	* Therefore, from a DEVICE_ID revision point of view, the silicon looks

+	* like it is Revision 2.1.  However, from an EFUSE_SMA point of view for

+	* the HW OPP table, the silicon looks like it is Revision 1.0 (ie the

+	* EFUSE_SMA register reads as all zeros).

+	*/

+	oppnitro-1000000000 {

+		opp-supported-hw = <0x06 0x0100>;

+	};

+};

+

+&am33xx_pinmux {

+	i2c0_pins: pinmux-i2c0-pins {

+		pinctrl-single,pins = <

+			AM33XX_IOPAD(0x988, PIN_INPUT_PULLUP | MUX_MODE0)	/* (C17) I2C0_SDA.I2C0_SDA */

+			AM33XX_IOPAD(0x98c, PIN_INPUT_PULLUP | MUX_MODE0)	/* (C16) I2C0_SCL.I2C0_SCL */

+		>;

+	};

+};

+

+&i2c0 {

+	pinctrl-names = "default";

+	pinctrl-0 = <&i2c0_pins>;

+

+	status = "okay";

+	clock-frequency = <400000>;

+

+	tps: tps@24 {

+		reg = <0x24>;

+	};

+};

+

+/include/ "tps65217.dtsi"

+

+&tps {

+	interrupts = <7>; /* NMI */

+	interrupt-parent = <&intc>;

+

+	ti,pmic-shutdown-controller;

+

+	pwrbutton {

+		interrupts = <2>;

+		status = "okay";

+	};

+

+	regulators {

+		dcdc1_reg: regulator@0 {

+			regulator-name = "vdds_dpr";

+			regulator-always-on;

+		};

+

+		dcdc2_reg: regulator@1 {

+			/* VDD_MPU voltage limits 0.95V - 1.26V with +/-4% tolerance */

+			regulator-name = "vdd_mpu";

+			regulator-min-microvolt = <925000>;

+			regulator-max-microvolt = <1351500>;

+			regulator-boot-on;

+			regulator-always-on;

+		};

+

+		dcdc3_reg: regulator@2 {

+			/* VDD_CORE voltage limits 0.95V - 1.1V with +/-4% tolerance */

+			regulator-name = "vdd_core";

+			regulator-min-microvolt = <925000>;

+			regulator-max-microvolt = <1150000>;

+			regulator-boot-on;

+			regulator-always-on;

+		};

+

+		ldo1_reg: regulator@3 {

+			regulator-name = "vio,vrtc,vdds";

+			regulator-always-on;

+		};

+

+		ldo2_reg: regulator@4 {

+			regulator-name = "vdd_3v3aux";

+			regulator-always-on;

+		};

+

+		ldo3_reg: regulator@5 {

+			regulator-name = "vdd_1v8";

+			regulator-min-microvolt = <1800000>;

+			regulator-max-microvolt = <1800000>;

+			regulator-always-on;

+		};

+

+		ldo4_reg: regulator@6 {

+			regulator-name = "vdd_3v3a";

+			regulator-always-on;

+		};

+	};

+};

+

+&aes {

+	status = "okay";

+};

+

+&sham {

+	status = "okay";

+};

diff --git a/arch/arm/boot/dts/am335x-pocketbeagle.dts b/arch/arm/boot/dts/am335x-pocketbeagle.dts

new file mode 100644

index 000000000000..62fe5cab9fae

--- /dev/null

+++ b/arch/arm/boot/dts/am335x-pocketbeagle.dts

@@ -0,0 +1,237 @@

+// SPDX-License-Identifier: GPL-2.0

+/*

+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/

+ *

+ * Author: Robert Nelson <robertcnelson@gmail.com>

+ */

+/dts-v1/;

+

+#include "am33xx.dtsi"

+#include "am335x-osd335x-common.dtsi"

+

+/ {

+	model = "TI AM335x PocketBeagle";

+	compatible = "ti,am335x-pocketbeagle", "ti,am335x-bone", "ti,am33xx";

+

+	chosen {

+		stdout-path = &uart;;

+	};

+

+	leds {

+		pinctrl-names = "default";

+		pinctrl-0 = <&usr_leds_pins>;

+

+		compatible = "gpio-leds";

+

+		usr0 {

+			label = "beaglebone:green:usr0";

+			gpios = <&gpio1 21 GPIO_ACTIVE_HIGH>;

+			linux,default-trigger = "heartbeat";

+			default-state = "off";

+		};

+

+		usr1 {

+			label = "beaglebone:green:usr1";

+			gpios = <&gpio1 22 GPIO_ACTIVE_HIGH>;

+			linux,default-trigger = "mmc0";

+			default-state = "off";

+		};

+

+		usr2 {

+			label = "beaglebone:green:usr2";

+			gpios = <&gpio1 23 GPIO_ACTIVE_HIGH>;

+			linux,default-trigger = "cpu0";

+			default-state = "off";

+		};

+

+		usr3 {

+			label = "beaglebone:green:usr3";

+			gpios = <&gpio1 24 GPIO_ACTIVE_HIGH>;

+			default-state = "off";

+		};

+	};

+

+	vmmcsd_fixed: fixedregulator0 {

+		compatible = "regulator-fixed";

+		regulator-name = "vmmcsd_fixed";

+		regulator-min-microvolt = <3300000>;

+		regulator-max-microvolt = <3300000>;

+	};

+};

+

+&am33xx_pinmux {

+	i2c2_pins: pinmux-i2c2-pins {

+		pinctrl-single,pins = <

+			AM33XX_IOPAD(0x97c, PIN_INPUT_PULLUP | MUX_MODE3)	/* (D17) uart1_rtsn.I2C2_SCL */

+			AM33XX_IOPAD(0x978, PIN_INPUT_PULLUP | MUX_MODE3)	/* (D18) uart1_ctsn.I2C2_SDA */

+		>;

+	};

+

+	ehrpwm0_pins: pinmux-ehrpwm0-pins {

+		pinctrl-single,pins = <

+			AM33XX_IOPAD(0x990, PIN_OUTPUT_PULLDOWN | MUX_MODE1)	/* (A13) mcasp0_aclkx.ehrpwm0A */

+		>;

+	};

+

+	ehrpwm1_pins: pinmux-ehrpwm1-pins {

+		pinctrl-single,pins = <

+			AM33XX_IOPAD(0x848, PIN_OUTPUT_PULLDOWN | MUX_MODE6)	/* (U14) gpmc_a2.ehrpwm1A */

+		>;

+	};

+

+	mmc0_pins: pinmux-mmc0-pins {

+		pinctrl-single,pins = <

+			AM33XX_IOPAD(0x960, PIN_INPUT | MUX_MODE7)		/* (C15) spi0_cs1.gpio0[6] */

+			AM33XX_IOPAD(0x8fc, PIN_INPUT_PULLUP | MUX_MODE0)	/* (G16) mmc0_dat0.mmc0_dat0 */

+			AM33XX_IOPAD(0x8f8, PIN_INPUT_PULLUP | MUX_MODE0)	/* (G15) mmc0_dat1.mmc0_dat1 */

+			AM33XX_IOPAD(0x8f4, PIN_INPUT_PULLUP | MUX_MODE0)	/* (F18) mmc0_dat2.mmc0_dat2 */

+			AM33XX_IOPAD(0x8f0, PIN_INPUT_PULLUP | MUX_MODE0)	/* (F17) mmc0_dat3.mmc0_dat3 */

+			AM33XX_IOPAD(0x904, PIN_INPUT_PULLUP | MUX_MODE0)	/* (G18) mmc0_cmd.mmc0_cmd */

+			AM33XX_IOPAD(0x900, PIN_INPUT_PULLUP | MUX_MODE0)	/* (G17) mmc0_clk.mmc0_clk */

+			AM33XX_IOPAD(0x9a0, PIN_INPUT | MUX_MODE4)		/* (B12) mcasp0_aclkr.mmc0_sdwp */

+		>;

+	};

+

+	spi0_pins: pinmux-spi0-pins {

+		pinctrl-single,pins = <

+			AM33XX_IOPAD(0x950, PIN_INPUT_PULLUP | MUX_MODE0)	/* (A17) spi0_sclk.spi0_sclk */

+			AM33XX_IOPAD(0x954, PIN_INPUT_PULLUP | MUX_MODE0)	/* (B17) spi0_d0.spi0_d0 */

+			AM33XX_IOPAD(0x958, PIN_INPUT_PULLUP | MUX_MODE0)	/* (B16) spi0_d1.spi0_d1 */

+			AM33XX_IOPAD(0x95c, PIN_INPUT_PULLUP | MUX_MODE0)	/* (A16) spi0_cs0.spi0_cs0 */

+		>;

+	};

+

+	spi1_pins: pinmux-spi1-pins {

+		pinctrl-single,pins = <

+			AM33XX_IOPAD(0x964, PIN_INPUT_PULLUP | MUX_MODE4)	/* (C18) eCAP0_in_PWM0_out.spi1_sclk */

+			AM33XX_IOPAD(0x968, PIN_INPUT_PULLUP | MUX_MODE4)	/* (E18) uart0_ctsn.spi1_d0 */

+			AM33XX_IOPAD(0x96c, PIN_INPUT_PULLUP | MUX_MODE4)	/* (E17) uart0_rtsn.spi1_d1 */

+			AM33XX_IOPAD(0x9b0, PIN_INPUT_PULLUP | MUX_MODE4)	/* (A15) xdma_event_intr0.spi1_cs1 */

+		>;

+	};

+

+	usr_leds_pins: pinmux-usr-leds-pins {

+		pinctrl-single,pins = <

+			AM33XX_IOPAD(0x854, PIN_OUTPUT | MUX_MODE7)		/* (V15) gpmc_a5.gpio1[21] - USR_LED_0 */

+			AM33XX_IOPAD(0x858, PIN_OUTPUT | MUX_MODE7)		/* (U15) gpmc_a6.gpio1[22] - USR_LED_1 */

+			AM33XX_IOPAD(0x85c, PIN_OUTPUT | MUX_MODE7)		/* (T15) gpmc_a7.gpio1[23] - USR_LED_2 */

+			AM33XX_IOPAD(0x860, PIN_OUTPUT | MUX_MODE7)		/* (V16) gpmc_a8.gpio1[24] - USR_LED_3 */

+		>;

+	};

+

+	uart0_pins: pinmux-uart0-pins {

+		pinctrl-single,pins = <

+			AM33XX_IOPAD(0x970, PIN_INPUT_PULLUP | MUX_MODE0)	/* (E15) uart0_rxd.uart0_rxd */

+			AM33XX_IOPAD(0x974, PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* (E16) uart0_txd.uart0_txd */

+		>;

+	};

+

+	uart4_pins: pinmux-uart4-pins {

+		pinctrl-single,pins = <

+			AM33XX_IOPAD(0x870, PIN_INPUT_PULLUP | MUX_MODE6)	/* (T17) gpmc_wait0.uart4_rxd */

+			AM33XX_IOPAD(0x874, PIN_OUTPUT_PULLDOWN | MUX_MODE6)	/* (U17) gpmc_wpn.uart4_txd */

+		>;

+	};

+};

+

+&epwmss0 {

+	status = "okay";

+};

+

+&ehrpwm0 {

+	status = "okay";

+	pinctrl-names = "default";

+	pinctrl-0 = <&ehrpwm0_pins>;

+};

+

+&epwmss1 {

+	status = "okay";

+};

+

+&ehrpwm1 {

+	status = "okay";

+	pinctrl-names = "default";

+	pinctrl-0 = <&ehrpwm1_pins>;

+};

+

+&i2c0 {

+	eeprom: eeprom@50 {

+		compatible = "atmel,24c256";

+		reg = <0x50>;

+	};

+};

+

+&i2c2 {

+	pinctrl-names = "default";

+	pinctrl-0 = <&i2c2_pins>;

+

+	status = "okay";

+	clock-frequency = <400000>;

+};

+

+&mmc1 {

+	status = "okay";

+	vmmc-supply = <&vmmcsd_fixed>;

+	bus-width = <4>;

+	pinctrl-names = "default";

+	pinctrl-0 = <&mmc0_pins>;

+	cd-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;

+};

+

+&rtc {

+	system-power-controller;

+};

+

+&tscadc {

+	status = "okay";

+	adc {

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

+		ti,chan-step-avg = <16 16 16 16 16 16 16 16>;

+		ti,chan-step-opendelay = <0x98 0x98 0x98 0x98 0x98 0x98 0x98 0x98>;

+		ti,chan-step-sampledelay = <0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0>;

+	};

+};

+

+&uart0 {

+	pinctrl-names = "default";

+	pinctrl-0 = <&uart0_pins>;

+

+	status = "okay";

+};

+

+&uart4 {

+	pinctrl-names = "default";

+	pinctrl-0 = <&uart4_pins>;

+

+	status = "okay";

+};

+

+&usb {

+	status = "okay";

+};

+

+&usb_ctrl_mod {

+	status = "okay";

+};

+

+&usb0_phy {

+	status = "okay";

+};

+

+&usb0 {

+	status = "okay";

+	dr_mode = "otg";

+};

+

+&usb1_phy {

+	status = "okay";

+};

+

+&usb1 {

+	status = "okay";

+	dr_mode = "host";

+};

+

+&cppi41dma  {

+	status = "okay";

+};

-- 

2.17.0