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

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On Mon, Apr 16, 2018 at 2:29 PM, Robert Nelson <robertcnelson@xxxxxxxxx> wrote:
> PocketBeagle Blue is an ultra-tiny-yet-complete open-source USB-key-fob computer.
>
> This board can be indentified by the BPxx value after A335BNLT (BBB)
> in the at24 eeprom:
> BPxx [aa 55 33 ee 41 33 33 35  42 4e 4c 54 42 50 30 30 |.U3.A335BNLTBP00|]
>
> http://beagleboard.org/pocket
> https://github.com/beagleboard/pocketbeagle
>
> Signed-off-by: Robert Nelson <robertcnelson@xxxxxxxxx>
> CC: Tony Lindgren <tony@xxxxxxxxxxx>
> CC: Jason Kridner <jkridner@xxxxxxxxxxxxxxx>
> CC: Drew Fustini <drew@xxxxxxxxxxxxxxx>
> CC: Peter Robinson <pbrobinson@xxxxxxxxxx>
> ---
>  arch/arm/boot/dts/Makefile                   |   1 +
>  arch/arm/boot/dts/am335x-osd335x-common.dtsi | 136 +++++++++++
>  arch/arm/boot/dts/am335x-pocketbeagle.dts    | 244 +++++++++++++++++++
>  3 files changed, 381 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 7e2424957809..5a09ff15743b 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -688,6 +688,7 @@ dtb-$(CONFIG_SOC_AM33XX) += \
>         am335x-pdu001.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..184b3a9f1538
> --- /dev/null
> +++ b/arch/arm/boot/dts/am335x-osd335x-common.dtsi
> @@ -0,0 +1,136 @@
> +/*
> + * Copyright (C) 2012 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.

Use SPDX tag.

> + */
> +
> +/ {
> +       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>;
> +       };
> +
> +       baseboard_eeprom: baseboard_eeprom@50 {

eeprom@50

Build the dtb with "W=12" and fix all the warnings (unless you've
inherited them from the includes).

> +               compatible = "atmel,24c256";
> +               reg = <0x50>;
> +
> +               #address-cells = <1>;
> +               #size-cells = <1>;
> +               baseboard_data: baseboard_data@0 {
> +                       reg = <0 0x100>;
> +               };
> +       };
> +};
> +
> +/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..c224cde88920
> --- /dev/null
> +++ b/arch/arm/boot/dts/am335x-pocketbeagle.dts
> @@ -0,0 +1,244 @@
> +/*
> + * Copyright (C) 2012 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.

Use SPDX tag.

> + */
> +/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 = &uart0;
> +       };
> +
> +       leds {
> +               pinctrl-names = "default";
> +               pinctrl-0 = <&user_leds_s0>;
> +
> +               compatible = "gpio-leds";
> +
> +               usr_0_led {
> +                       label = "beaglebone:green:usr0";
> +                       gpios = <&gpio1 21 GPIO_ACTIVE_HIGH>;
> +                       linux,default-trigger = "heartbeat";
> +                       default-state = "off";
> +               };
> +
> +               usr_1_led {
> +                       label = "beaglebone:green:usr1";
> +                       gpios = <&gpio1 22 GPIO_ACTIVE_HIGH>;
> +                       linux,default-trigger = "mmc0";
> +                       default-state = "off";
> +               };
> +
> +               usr_2_led {
> +                       label = "beaglebone:green:usr2";
> +                       gpios = <&gpio1 23 GPIO_ACTIVE_HIGH>;
> +                       linux,default-trigger = "cpu0";
> +                       default-state = "off";
> +               };
> +
> +               usr_3_led {
> +                       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 */
> +               >;
> +       };
> +
> +       user_leds_s0: user_leds_s0 {
> +               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 {
> +       baseboard_eeprom: baseboard_eeprom@50 {

This appears twice?

> +               compatible = "atmel,24c256";
> +               reg = <0x50>;
> +
> +               #address-cells = <1>;
> +               #size-cells = <1>;
> +               baseboard_data: baseboard_data@0 {
> +                       reg = <0 0x100>;
> +               };
> +       };
> +};
> +
> +&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
>
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