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https://github.com/zephyrproject-rtos/zephyr
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44ad011680
The Serpente Boards are small low-cost Atmel SAMD21 based development boards by @arturo182 Signed-off-by: Alexander Falb <fal3xx@gmail.com>
67 lines
1.9 KiB
C
67 lines
1.9 KiB
C
/*
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* Copyright (c) 2020 Alexander Falb <fal3xx@gmail.com>
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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 <soc.h>
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static int board_pinmux_init(const struct device *dev)
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{
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const struct device *muxa =
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device_get_binding(DT_LABEL(DT_NODELABEL(pinmux_a)));
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ARG_UNUSED(dev);
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/* sercom 3 is always spi - it is the onboard flash */
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/* SPI SERCOM3 on MISO=PA18, MOSI=PA16, SCK=PA17, CS=PA15*/
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pinmux_pin_set(muxa, 18, PINMUX_FUNC_D);
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pinmux_pin_set(muxa, 16, PINMUX_FUNC_D);
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pinmux_pin_set(muxa, 17, PINMUX_FUNC_D);
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#if ATMEL_SAM0_DT_SERCOM_CHECK(0, atmel_sam0_spi) && defined(CONFIG_SPI_SAM0)
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/* SPI SERCOM0 on MISO=PA6, MOSI=PA4, SCK=PA5 */
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pinmux_pin_set(muxa, 6, PINMUX_FUNC_D);
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pinmux_pin_set(muxa, 4, PINMUX_FUNC_D);
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pinmux_pin_set(muxa, 5, PINMUX_FUNC_D);
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#endif
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#if ATMEL_SAM0_DT_SERCOM_CHECK(0, atmel_sam0_uart) && defined(CONFIG_UART_SAM0)
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/* SERCOM0 on RX=PA5, TX=PA4 */
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pinmux_pin_set(muxa, 5, PINMUX_FUNC_C);
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pinmux_pin_set(muxa, 4, PINMUX_FUNC_C);
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#endif
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#if ATMEL_SAM0_DT_SERCOM_CHECK(2, atmel_sam0_i2c) && defined(CONFIG_I2C_SAM0)
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/* SERCOM2 on SDA=PA08, SCL=PA09 */
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pinmux_pin_set(muxa, 4, PINMUX_FUNC_D);
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pinmux_pin_set(muxa, 5, PINMUX_FUNC_D);
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#endif
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#if ATMEL_SAM0_DT_SERCOM_CHECK(2, atmel_sam0_uart) && defined(CONFIG_UART_SAM0)
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/* SERCOM0 on RX=PA9, TX=PA8 */
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pinmux_pin_set(muxa, 9, PINMUX_FUNC_C);
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pinmux_pin_set(muxa, 8, PINMUX_FUNC_C);
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#endif
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#ifdef CONFIG_USB_DC_SAM0
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/* USB DP on PA25, USB DM on PA24 */
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pinmux_pin_set(muxa, 25, PINMUX_FUNC_G);
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pinmux_pin_set(muxa, 24, PINMUX_FUNC_G);
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#endif
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#if (ATMEL_SAM0_DT_TCC_CHECK(0, atmel_sam0_tcc_pwm) && CONFIG_PWM_SAM0_TCC)
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/* TCC0 on WO4=PA22 (red), WO3=PA19 (green), WO5=PA23 (blue) */
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pinmux_pin_set(muxa, 22, PINMUX_FUNC_F);
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pinmux_pin_set(muxa, 19, PINMUX_FUNC_F);
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pinmux_pin_set(muxa, 23, PINMUX_FUNC_F);
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#endif
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return 0;
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}
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SYS_INIT(board_pinmux_init, PRE_KERNEL_1, CONFIG_PINMUX_INIT_PRIORITY);
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