On 20:09-20210121, Lokesh Vutla wrote: > AM642 StarterKit (SK) board is a low cost, small form factor board > designed for TI’s AM642 SoC. It supports the following interfaces: > * 2 GB LPDDR4 RAM > * x2 Gigabit Ethernet interfaces capable of working in switch and MAC mode > * x1 USB 3.0 Type-A port > * x1 UHS-1 capable µSD card slot > * 2.4/5 GHz WLAN + Bluetooth 4.2 through WL1837 > * 512 Mbit OSPI flash > * x2 UART through UART-USB bridge > * XDS110 for onboard JTAG debug using USB > * Temperature sensors, user push buttons and LEDs > * 40-pin Raspberry Pi compatible GPIO header > * 24-pin header for peripherals in MCU island (I2C, UART, SPI, IO) > * 54-pin header for Programmable Realtime Unit (PRU) IO pins > * Interface for remote automation (power and reset, boot mode change) might be nice to state "power measurement and reset control" > > Add basic support for AM642 SK. > > Signed-off-by: Lokesh Vutla <lokeshvutla@xxxxxx> > Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx> > Signed-off-by: Vignesh Raghavendra <vigneshr@xxxxxx> > Signed-off-by: Sekhar Nori <nsekhar@xxxxxx> > --- > arch/arm64/boot/dts/ti/Makefile | 3 +- > arch/arm64/boot/dts/ti/k3-am642-sk.dts | 145 +++++++++++++++++++++++++ > 2 files changed, 147 insertions(+), 1 deletion(-) > create mode 100644 arch/arm64/boot/dts/ti/k3-am642-sk.dts > > diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile > index c687739e2bca..6aa642eb56d4 100644 > --- a/arch/arm64/boot/dts/ti/Makefile > +++ b/arch/arm64/boot/dts/ti/Makefile > @@ -12,4 +12,5 @@ dtb-$(CONFIG_ARCH_K3) += k3-j721e-common-proc-board.dtb > > dtb-$(CONFIG_ARCH_K3) += k3-j7200-common-proc-board.dtb > > -dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb > +dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb \ > + k3-am642-sk.dtb no please. Just: +dtb-$(CONFIG_ARCH_K3) += k3-am642-sk.dtb See arch/arm64/boot/dts/nvidia/Makefile for example. > diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts > new file mode 100644 > index 000000000000..5b473aaa225d > --- /dev/null > +++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts > @@ -0,0 +1,145 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Copyright (C) 2021 Texas Instruments Incorporated - https://www.ti.com/ > + */ > + > +/dts-v1/; > + > +#include <dt-bindings/gpio/gpio.h> > +#include "k3-am642.dtsi" > + > +/ { > + compatible = "ti,am642-evm", "ti,am642"; > + model = "Texas Instruments AM642 SK"; > + > + chosen { > + stdout-path = "serial2:115200n8"; > + bootargs = "console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000"; > + }; > + > + memory@80000000 { > + device_type = "memory"; > + /* 2G RAM */ > + reg = <0x00000000 0x80000000 0x00000000 0x80000000>; > + > + }; > + > + reserved-memory { > + #address-cells = <2>; > + #size-cells = <2>; > + ranges; > + > + secure_ddr: optee@9e800000 { > + reg = <0x00 0x9e800000 0x00 0x01800000>; /* for OP-TEE */ > + alignment = <0x1000>; > + no-map; > + }; > + }; > + > + vusb_main: fixed-regulator-vusb-main5v0 { > + /* USB MAIN INPUT 5V DC */ > + compatible = "regulator-fixed"; > + regulator-name = "vusb_main5v0"; > + regulator-min-microvolt = <5000000>; > + regulator-max-microvolt = <5000000>; > + regulator-always-on; > + regulator-boot-on; > + }; > + > + vcc_3v3_sys: fixedregulator-vcc-3v3-sys { > + /* output of LP8733xx */ > + compatible = "regulator-fixed"; > + regulator-name = "vcc_3v3_sys"; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + vin-supply = <&vusb_main>; > + regulator-always-on; > + regulator-boot-on; > + }; > + > + vdd_mmc1: fixed-regulator-sd { > + /* TPS2051BD */ > + 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>; > + }; > +}; > + > +&main_pmx0 { > + main_mmc1_pins_default: main-mmc1-pins-default { > + pinctrl-single,pins = < > + AM64X_IOPAD(0x0294, PIN_INPUT, 0) /* (J19) MMC1_CMD */ > + AM64X_IOPAD(0x0290, PIN_INPUT, 0) /* (#N/A) MMC1_CLKLB */ > + AM64X_IOPAD(0x028c, PIN_INPUT, 0) /* (L20) MMC1_CLK */ > + AM64X_IOPAD(0x0288, PIN_INPUT, 0) /* (K21) MMC1_DAT0 */ > + AM64X_IOPAD(0x0284, PIN_INPUT, 0) /* (L21) MMC1_DAT1 */ > + AM64X_IOPAD(0x0280, PIN_INPUT, 0) /* (K19) MMC1_DAT2 */ > + AM64X_IOPAD(0x027c, PIN_INPUT, 0) /* (K18) MMC1_DAT3 */ > + AM64X_IOPAD(0x0298, PIN_INPUT, 0) /* (D19) MMC1_SDCD */ > + >; > + }; > + > + main_i2c1_pins_default: main-i2c1-pins-default { > + pinctrl-single,pins = < > + AM64X_IOPAD(0x0268, PIN_INPUT_PULLUP, 0) /* (C18) I2C1_SCL */ > + AM64X_IOPAD(0x026c, PIN_INPUT_PULLUP, 0) /* (B19) I2C1_SDA */ > + >; > + }; > +}; > + > +&main_uart1 { > + /* main_uart1 is reserved for firmware usage */ > + status = "reserved"; > +}; > + > +&main_uart2 { > + status = "disabled"; > +}; > + > +&main_uart3 { > + status = "disabled"; > +}; > + > +&main_uart4 { > + status = "disabled"; > +}; > + > +&main_uart5 { > + status = "disabled"; > +}; > + > +&main_uart6 { > + status = "disabled"; > +}; I think disabling &mcu_uart0 and &mcu_uart1 might also be a good idea? > + > +&main_i2c1 { > + pinctrl-names = "default"; > + pinctrl-0 = <&main_i2c1_pins_default>; > + clock-frequency = <400000>; > + > + exp1: gpio@70 { > + compatible = "nxp,pca9538"; > + reg = <0x70>; > + gpio-controller; > + #gpio-cells = <2>; > + gpio-line-names = "GPIO_CPSW2_RST", "GPIO_CPSW1_RST", > + "PRU_DETECT", "MMC1_SD_EN", > + "VPP_LDO_EN", "RPI_PS_3V3_En", > + "RPI_PS_5V0_En", "RPI_HAT_DETECT"; > + }; > +}; Disable main_i2c0, spi nodes, sdhci0 or are those nodes being used for something else that will be fixedup in a follow on series? > + > +&sdhci1 { > + /* SD/MMC */ > + vmmc-supply = <&vdd_mmc1>; > + pinctrl-names = "default"; > + bus-width = <4>; > + pinctrl-0 = <&main_mmc1_pins_default>; > + ti,driver-strength-ohm = <50>; > + disable-wp; > +}; > -- > 2.30.0 > -- Regards, Nishanth Menon Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D
