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soc: arm: openisa_rv32m1: Add RV32M1 M4 core support
Add the M4 core of the RVM32M1 SoC and a corresponding board configuration to enable the core on the vega board. Signed-off-by: Karsten Koenig <[email protected]>
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‎CODEOWNERS‎

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/dts/arm/nuvoton/ @ssekar15
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/dts/arm/nxp/ @MaureenHelm
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/dts/arm/microchip/ @franciscomunoz @albertofloyd @scottwcpg
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/dts/arm/rv32m1/ @karstenkoenig
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/dts/arm/silabs/efm32gg11b* @oanerer
278279
/dts/arm/silabs/efm32_jg_pg* @chrta
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/dts/arm/silabs/efr32bg13p* @mnkp

‎boards/arm/rv32m1_vega_cortex/CMakeLists.txt‎

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# Copyright (c) 2020 Karsten Koenig
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# SPDX-License-Identifier: Apache-2.0
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zephyr_library()
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zephyr_library_sources(pinmux.c)

‎boards/arm/rv32m1_vega_cortex/Kconfig.board‎

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# Copyright (c) 2020 Karsten Koenig
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# SPDX-License-Identifier: Apache-2.0
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config BOARD_RV32M1_VEGA_CORTEX
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bool "RV32M1 ARM cores"
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depends on SOC_OPENISA_RV32M1_ARM

‎boards/arm/rv32m1_vega_cortex/Kconfig.defconfig‎

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# Copyright (c) 2020 Karsten Koenig
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# SPDX-License-Identifier: Apache-2.0
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if BOARD_RV32M1_VEGA_CORTEX
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config BOARD
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default "rv32m1_vega_cortex_m4" if SOC_OPENISA_RV32M1_M4
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config UART_RV32M1_LPUART
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default y
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depends on SERIAL
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endif # BOARD_RV32M1_VEGA

‎boards/arm/rv32m1_vega_cortex/pinmux.c‎

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/*
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* Copyright 2018 Foundries.io Ltd
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <init.h>
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#include <drivers/pinmux.h>
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#include <drivers/gpio.h>
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#include <fsl_port.h>
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#ifdef CONFIG_BT_CTLR_DEBUG_PINS
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struct device *vega_debug_portb;
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struct device *vega_debug_portc;
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struct device *vega_debug_portd;
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#endif
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static int rv32m1_vega_pinmux_init(struct device *dev)
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{
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ARG_UNUSED(dev);
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#if DT_NODE_HAS_STATUS(DT_NODELABEL(porta), okay)
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__unused struct device *porta =
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device_get_binding(DT_LABEL(DT_NODELABEL(porta)));
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#endif
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#if DT_NODE_HAS_STATUS(DT_NODELABEL(portb), okay)
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__unused struct device *portb =
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device_get_binding(DT_LABEL(DT_NODELABEL(portb)));
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#endif
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#if DT_NODE_HAS_STATUS(DT_NODELABEL(portc), okay)
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__unused struct device *portc =
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device_get_binding(DT_LABEL(DT_NODELABEL(portc)));
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#endif
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#if DT_NODE_HAS_STATUS(DT_NODELABEL(portd), okay)
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__unused struct device *portd =
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device_get_binding(DT_LABEL(DT_NODELABEL(portd)));
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#endif
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#if DT_NODE_HAS_STATUS(DT_NODELABEL(porte), okay)
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__unused struct device *porte =
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device_get_binding(DT_LABEL(DT_NODELABEL(porte)));
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#endif
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#if DT_NODE_HAS_STATUS(DT_NODELABEL(lpuart0), okay) && CONFIG_SERIAL
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/* LPUART0 RX, TX */
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pinmux_pin_set(portc, 7, PORT_PCR_MUX(kPORT_MuxAlt3));
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pinmux_pin_set(portc, 8, PORT_PCR_MUX(kPORT_MuxAlt3));
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#endif
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#if DT_NODE_HAS_STATUS(DT_NODELABEL(lpuart1), okay) && CONFIG_SERIAL
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/* LPUART1 RX, TX */
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pinmux_pin_set(portc, 29, PORT_PCR_MUX(kPORT_MuxAlt2));
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pinmux_pin_set(portc, 30, PORT_PCR_MUX(kPORT_MuxAlt2));
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#endif
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#if DT_NODE_HAS_STATUS(DT_NODELABEL(lpi2c0), okay) && CONFIG_I2C
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/* LPI2C0 SCL, SDA - Arduino header */
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pinmux_pin_set(portc, 10, PORT_PCR_MUX(kPORT_MuxAlt4));
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pinmux_pin_set(portc, 9, PORT_PCR_MUX(kPORT_MuxAlt4));
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#endif
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#if DT_NODE_HAS_STATUS(DT_NODELABEL(lpi2c3), okay) && CONFIG_I2C
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/* LPI2C3 SCL, SDA - FXOS8700 */
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pinmux_pin_set(porte, 30, PORT_PCR_MUX(kPORT_MuxAlt3));
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pinmux_pin_set(porte, 29, PORT_PCR_MUX(kPORT_MuxAlt3));
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#endif
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/* FXOS8700 INT1, INT2, RST */
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pinmux_pin_set(porte, 1, PORT_PCR_MUX(kPORT_MuxAsGpio));
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pinmux_pin_set(porte, 22, PORT_PCR_MUX(kPORT_MuxAsGpio));
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pinmux_pin_set(porte, 27, PORT_PCR_MUX(kPORT_MuxAsGpio));
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#if DT_NODE_HAS_STATUS(DT_NODELABEL(lpspi0), okay) && CONFIG_SPI
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/* LPSPI0 SCK, SOUT, PCS2, SIN */
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pinmux_pin_set(portb, 4, PORT_PCR_MUX(kPORT_MuxAlt2));
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pinmux_pin_set(portb, 5, PORT_PCR_MUX(kPORT_MuxAlt2));
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pinmux_pin_set(portb, 6, PORT_PCR_MUX(kPORT_MuxAlt2));
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pinmux_pin_set(portb, 7, PORT_PCR_MUX(kPORT_MuxAlt2));
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#endif
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#if DT_NODE_HAS_STATUS(DT_NODELABEL(lpspi1), okay) && CONFIG_SPI
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/* LPSPI1 SCK, SIN, SOUT, CS */
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pinmux_pin_set(portb, 20, PORT_PCR_MUX(kPORT_MuxAlt2));
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pinmux_pin_set(portb, 21, PORT_PCR_MUX(kPORT_MuxAlt2));
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pinmux_pin_set(portb, 24, PORT_PCR_MUX(kPORT_MuxAlt2));
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pinmux_pin_set(portb, 22, PORT_PCR_MUX(kPORT_MuxAlt2));
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#endif
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#if DT_NODE_HAS_STATUS(DT_NODELABEL(tpm2), okay) && CONFIG_PWM
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/* RGB LEDs as PWM */
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pinmux_pin_set(porta, 22, PORT_PCR_MUX(kPORT_MuxAlt6));
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pinmux_pin_set(porta, 23, PORT_PCR_MUX(kPORT_MuxAlt6));
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pinmux_pin_set(porta, 24, PORT_PCR_MUX(kPORT_MuxAlt6));
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#else
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/* RGB LEDs as GPIO */
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pinmux_pin_set(porta, 22, PORT_PCR_MUX(kPORT_MuxAsGpio));
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pinmux_pin_set(porta, 23, PORT_PCR_MUX(kPORT_MuxAsGpio));
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pinmux_pin_set(porta, 24, PORT_PCR_MUX(kPORT_MuxAsGpio));
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#endif
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#ifdef CONFIG_BT_CTLR_DEBUG_PINS
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pinmux_pin_set(portb, 29, PORT_PCR_MUX(kPORT_MuxAsGpio));
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pinmux_pin_set(portc, 28, PORT_PCR_MUX(kPORT_MuxAsGpio));
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pinmux_pin_set(portc, 29, PORT_PCR_MUX(kPORT_MuxAsGpio));
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pinmux_pin_set(portc, 30, PORT_PCR_MUX(kPORT_MuxAsGpio));
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pinmux_pin_set(portd, 0, PORT_PCR_MUX(kPORT_MuxAsGpio));
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pinmux_pin_set(portd, 1, PORT_PCR_MUX(kPORT_MuxAsGpio));
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pinmux_pin_set(portd, 2, PORT_PCR_MUX(kPORT_MuxAsGpio));
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pinmux_pin_set(portd, 3, PORT_PCR_MUX(kPORT_MuxAsGpio));
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pinmux_pin_set(portd, 4, PORT_PCR_MUX(kPORT_MuxAsGpio));
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pinmux_pin_set(portd, 5, PORT_PCR_MUX(kPORT_MuxAsGpio));
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struct device *gpio_dev =
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device_get_binding(DT_LABEL(DT_NODELABEL(gpiob)));
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gpio_pin_configure(gpio_dev, 29, GPIO_OUTPUT);
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gpio_dev = device_get_binding(DT_LABEL(DT_NODELABEL(gpioc)));
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gpio_pin_configure(gpio_dev, 28, GPIO_OUTPUT);
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gpio_pin_configure(gpio_dev, 29, GPIO_OUTPUT);
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gpio_pin_configure(gpio_dev, 30, GPIO_OUTPUT);
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gpio_dev = device_get_binding(DT_LABEL(DT_NODELABEL(gpiod)));
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gpio_pin_configure(gpio_dev, 0, GPIO_OUTPUT);
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gpio_pin_configure(gpio_dev, 1, GPIO_OUTPUT);
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gpio_pin_configure(gpio_dev, 2, GPIO_OUTPUT);
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gpio_pin_configure(gpio_dev, 3, GPIO_OUTPUT);
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gpio_pin_configure(gpio_dev, 4, GPIO_OUTPUT);
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gpio_pin_configure(gpio_dev, 5, GPIO_OUTPUT);
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#endif
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return 0;
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}
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SYS_INIT(rv32m1_vega_pinmux_init, PRE_KERNEL_1, CONFIG_PINMUX_INIT_PRIORITY);

‎boards/arm/rv32m1_vega_cortex/rv32m1_vega_cortex.dtsi‎

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/*
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* Copyright (c) 2018 Foundries.io Ltd
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* Copyright (c) 2020 Karsten Koenig
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* SPDX-License-Identifier: Apache-2.0
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*/
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/ {
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aliases {
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led0 = &green_led;
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led1 = &blue_led;
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led2 = &red_led;
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led3 = &sts_led;
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pwm-led0 = &blue_pwm_led;
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pwm-led1 = &green_pwm_led;
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pwm-led2 = &red_pwm_led;
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blue-pwm-led = &blue_pwm_led;
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green-pwm-led = &green_pwm_led;
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red-pwm-led = &red_pwm_led;
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sw0 = &user_button_2;
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sw1 = &user_button_3;
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sw2 = &user_button_4;
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sw3 = &user_button_5;
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};
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leds {
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compatible = "gpio-leds";
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blue_led: led_0 {
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gpios = <&gpioa 22 GPIO_ACTIVE_HIGH>;
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label = "User LD1";
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};
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green_led: led_1 {
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gpios = <&gpioa 23 GPIO_ACTIVE_HIGH>;
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label = "User LD2";
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};
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red_led: led_2 {
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gpios = <&gpioa 24 GPIO_ACTIVE_HIGH>;
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label = "User LD3";
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};
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sts_led: led_3 {
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gpios = <&gpioe 0 GPIO_ACTIVE_HIGH>;
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label = "User LD4";
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};
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};
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pwmleds {
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compatible = "pwm-leds";
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blue_pwm_led: pwm_led_0 {
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pwms = <&tpm2 2 0 0>;
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label = "User PWM LD1";
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};
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green_pwm_led: pwm_led_1 {
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pwms = <&tpm2 1 0 0>;
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label = "User PWM LD2";
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};
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red_pwm_led: pwm_led_2 {
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pwms = <&tpm2 0 0 0>;
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label = "User PWM LD3";
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};
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};
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gpio_keys {
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compatible = "gpio-keys";
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user_button_2: button_0 {
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label = "User SW2";
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gpios = <&gpioa 0 GPIO_ACTIVE_LOW>;
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};
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user_button_3: button_1 {
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label = "User SW3";
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gpios = <&gpioe 8 GPIO_ACTIVE_LOW>;
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};
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user_button_4: button_2 {
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label = "User SW4";
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gpios = <&gpioe 9 GPIO_ACTIVE_LOW>;
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};
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user_button_5: button_3 {
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label = "User SW5";
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gpios = <&gpioe 12 GPIO_ACTIVE_LOW>;
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};
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};
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arduino_header: connector {
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compatible = "arduino-header-r3";
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#gpio-cells = <2>;
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gpio-map-mask = <0xffffffff 0xffffffc0>;
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gpio-map-pass-thru = <0 0x3f>;
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gpio-map = <0 0 &gpioc 11 0>, /* A0 */
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<1 0 &gpioc 12 0>, /* A1 */
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<2 0 &gpiob 9 0>, /* A2 */
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<3 0 &gpioe 4 0>, /* A3 */
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<4 0 &gpioe 10 0>, /* A4 */
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<5 0 &gpioe 11 0>, /* A5 */
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<6 0 &gpioa 25 0>, /* D0 */
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<7 0 &gpioa 26 0>, /* D1 */
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<8 0 &gpioa 27 0>, /* D2 */
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<9 0 &gpiob 13 0>, /* D3 */
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<10 0 &gpiob 14 0>, /* D4 */
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<11 0 &gpioa 30 0>, /* D5 */
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<12 0 &gpioa 31 0>, /* D6 */
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<13 0 &gpiob 1 0>, /* D7 */
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<14 0 &gpiob 2 0>, /* D8 */
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<15 0 &gpiob 3 0>, /* D9 */
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<16 0 &gpiob 6 0>, /* D10 */
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<17 0 &gpiob 5 0>, /* D11 */
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<18 0 &gpiob 7 0>, /* D12 */
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<19 0 &gpiob 4 0>, /* D13 */
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<20 0 &gpioc 9 0>, /* D14 */
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<21 0 &gpioc 10 0>; /* D15 */
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};
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};
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arduino_serial: &lpuart1 {};
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&lpuart0 {
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current-speed = <115200>;
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status = "okay";
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};
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arduino_i2c: &lpi2c0 {
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status = "okay";
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};
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&lpi2c3 {
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status = "okay";
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fxos8700@1e {
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compatible = "nxp,fxos8700";
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reg = <0x1e>;
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label = "FXOS8700";
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reset-gpios = <&gpioe 27 GPIO_ACTIVE_HIGH>;
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int1-gpios = <&gpioe 1 GPIO_ACTIVE_LOW>;
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int2-gpios = <&gpioe 22 GPIO_ACTIVE_LOW>;
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};
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};
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arduino_spi: &lpspi0 {
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status = "okay";
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};
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&lpspi1 {
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status = "okay";
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cs-gpios = <&gpiob 22 0>;
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mx25r32: mx25r3235f@0 {
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compatible = "jedec,spi-nor";
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reg = <0>;
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spi-max-frequency = <80000000>;
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label = "MX25R32";
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jedec-id = [c2 28 16];
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size = <33554432>;
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has-be32k;
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};
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};
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&tpm2 {
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status = "okay";
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};

‎boards/arm/rv32m1_vega_cortex/rv32m1_vega_cortex_m4.dts‎

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/*
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* Copyright (c) 2018 Foundries.io Ltd
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* Copyright (c) 2020 Karsten Koenig
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* SPDX-License-Identifier: Apache-2.0
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*/
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/dts-v1/;
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#include "rv32m1/rv32m1_m4.dtsi"
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#include "rv32m1_vega_cortex.dtsi"
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/ {
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model = "OpenISA RV32M1 Vega Cortex-M4";
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compatible = "openisa,rv32m1";
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chosen {
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zephyr,sram = &m4_dtcm;
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zephyr,flash = &m4_flash;
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zephyr,console = &lpuart0;
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zephyr,shell-uart = &lpuart0;
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zephyr,uart-pipe = &lpuart0;
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zephyr,code-partition = &slot0_partition;
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};
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};
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&m4_flash {
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partitions {
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compatible = "fixed-partitions";
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#address-cells = <1>;
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#size-cells = <1>;
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slot0_partition: partition@0 {
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label = "image-0";
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reg = <0x00000000 0x000069000>;
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};
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slot1_partition: partition@69000 {
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label = "image-1";
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reg = <0x00069000 0x000069000>;
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};
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scratch_partition: partition@d2000 {
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label = "image-scratch";
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reg = <0x000d2000 0x0001e000>;
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};
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storage_partition: partition@f0000 {
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label = "storage";
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reg = <0x000f0000 0x00004000>;
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};
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boot_partition: partition@f4000 {
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label = "mcuboot";
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reg = <0x000f4000 0x0000C000>;
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};
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};
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};

‎boards/arm/rv32m1_vega_cortex/rv32m1_vega_cortex_m4.yaml‎

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identifier: rv32m1_vega_cortex_m4
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name: RV32M1-VEGA-CORTEX-M4
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type: mcu
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arch: arm
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toolchain:
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- zephyr
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- gnuarmemb
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supported:
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- arduino_gpio
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- arduino_i2c
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- arduino_spi
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- i2c
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- pwm
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- spi

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