diff options
Diffstat (limited to 'arch/arm/boot/dts/am335x-chilisom.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/am335x-chilisom.dtsi | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/am335x-chilisom.dtsi b/arch/arm/boot/dts/am335x-chilisom.dtsi new file mode 100644 index 000000000..43b61e43e --- /dev/null +++ b/arch/arm/boot/dts/am335x-chilisom.dtsi @@ -0,0 +1,175 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2015 Jablotron s.r.o. -- https://www.jablotron.com/ + * Author: Rostislav Lisovy <lisovy@jablotron.cz> + */ +#include "am33xx.dtsi" +#include <dt-bindings/interrupt-controller/irq.h> + +/ { + model = "Grinn AM335x ChiliSOM"; + compatible = "grinn,am335x-chilisom", "ti,am33xx"; + + cpus { + cpu@0 { + cpu0-supply = <&dcdc2_reg>; + }; + }; + + memory@80000000 { + device_type = "memory"; + reg = <0x80000000 0x20000000>; /* 512 MB */ + }; +}; + +&am33xx_pinmux { + pinctrl-names = "default"; + + i2c0_pins: pinmux_i2c0_pins { + pinctrl-single,pins = < + AM33XX_PADCONF(AM335X_PIN_I2C0_SDA, PIN_INPUT_PULLUP, MUX_MODE0) + AM33XX_PADCONF(AM335X_PIN_I2C0_SCL, PIN_INPUT_PULLUP, MUX_MODE0) + >; + }; + + nandflash_pins: nandflash_pins { + pinctrl-single,pins = < + AM33XX_PADCONF(AM335X_PIN_GPMC_AD0, PIN_INPUT_PULLDOWN, MUX_MODE0) + AM33XX_PADCONF(AM335X_PIN_GPMC_AD1, PIN_INPUT_PULLDOWN, MUX_MODE0) + AM33XX_PADCONF(AM335X_PIN_GPMC_AD2, PIN_INPUT_PULLDOWN, MUX_MODE0) + AM33XX_PADCONF(AM335X_PIN_GPMC_AD3, PIN_INPUT_PULLDOWN, MUX_MODE0) + AM33XX_PADCONF(AM335X_PIN_GPMC_AD4, PIN_INPUT_PULLDOWN, MUX_MODE0) + AM33XX_PADCONF(AM335X_PIN_GPMC_AD5, PIN_INPUT_PULLDOWN, MUX_MODE0) + AM33XX_PADCONF(AM335X_PIN_GPMC_AD6, PIN_INPUT_PULLDOWN, MUX_MODE0) + AM33XX_PADCONF(AM335X_PIN_GPMC_AD7, PIN_INPUT_PULLDOWN, MUX_MODE0) + + AM33XX_PADCONF(AM335X_PIN_GPMC_WAIT0, PIN_INPUT_PULLUP, MUX_MODE0) + AM33XX_PADCONF(AM335X_PIN_GPMC_CSN0, PIN_OUTPUT_PULLUP, MUX_MODE0) + AM33XX_PADCONF(AM335X_PIN_GPMC_ADVN_ALE, PIN_OUTPUT_PULLUP, MUX_MODE0) + AM33XX_PADCONF(AM335X_PIN_GPMC_OEN_REN, PIN_OUTPUT_PULLUP, MUX_MODE0) + AM33XX_PADCONF(AM335X_PIN_GPMC_WEN, PIN_OUTPUT_PULLUP, MUX_MODE0) + AM33XX_PADCONF(AM335X_PIN_GPMC_BEN0_CLE, PIN_OUTPUT_PULLUP, MUX_MODE0) + >; + }; +}; + +&i2c0 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c0_pins>; + + status = "okay"; + clock-frequency = <400000>; + + tps: tps@24 { + reg = <0x24>; + }; + +}; + +/include/ "tps65217.dtsi" + +&tps { + 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 = <1325000>; + 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-boot-on; + regulator-always-on; + }; + + ldo2_reg: regulator@4 { + regulator-name = "vdd_3v3aux"; + regulator-boot-on; + regulator-always-on; + }; + + ldo3_reg: regulator@5 { + regulator-name = "vdd_1v8"; + regulator-boot-on; + regulator-always-on; + }; + + ldo4_reg: regulator@6 { + regulator-name = "vdd_3v3d"; + regulator-boot-on; + regulator-always-on; + }; + }; +}; + +&rtc { + system-power-controller; + + pinctrl-0 = <&ext_wakeup>; + pinctrl-names = "default"; + + ext_wakeup: ext-wakeup { + pins = "ext_wakeup0"; + input-enable; + }; +}; + +/* NAND Flash */ +&elm { + status = "okay"; +}; + +&gpmc { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&nandflash_pins>; + ranges = <0 0 0x08000000 0x01000000>; /* CS0 0 @addr 0x08000000, size 0x01000000 */ + nand@0,0 { + compatible = "ti,omap2-nand"; + reg = <0 0 4>; /* CS0, offset 0, IO size 4 */ + 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 = "bch8"; + 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 = <44>; + gpmc,cs-wr-off-ns = <44>; + gpmc,adv-on-ns = <6>; + gpmc,adv-rd-off-ns = <34>; + gpmc,adv-wr-off-ns = <44>; + gpmc,we-on-ns = <0>; + gpmc,we-off-ns = <40>; + gpmc,oe-on-ns = <0>; + gpmc,oe-off-ns = <54>; + gpmc,access-ns = <64>; + gpmc,rd-cycle-ns = <82>; + gpmc,wr-cycle-ns = <82>; + 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>; + }; +}; |