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/* * Copyright (c) 2018 Intel Corporation * * SPDX-License-Identifier: Apache-2.0 */ #include <kernel.h> #include <init.h> #include <pinmux.h> #include "iomux.h" /* * :::::::::::: NOTE :::::::::::: * For a list of possible I/O MUX settings, * See soc/xtensa/intel_s1000/iomux.h */ /* * Initializes the I/O MUX with the setting needed per Intel S1000 CRB * For customizations, please refer to the table above for available settings * Please note that a call to pinmux_pin_set is only needed when a setting * that is not default is required */ static int intel_s1000_pinmux_init(struct device *dev) { struct device *pinmux; pinmux = device_get_binding(CONFIG_PINMUX_NAME); if (pinmux == NULL) { return -ENXIO; } /* Select PDM instead of I2S0 since board has 8 microphones */ pinmux_pin_set(pinmux, PIN_GROUP(I2S0), PINMUX_FUNC_B); /* * I2S3 is wired to the host interface connector. * Select GPIO to avoid any conflict with hosts that may be driving * the signals. */ pinmux_pin_set(pinmux, PIN_GROUP(I2S3), PINMUX_FUNC_B); /* TI DAC is on I2C1. Usually, there is no device on I2C0 */ pinmux_pin_set(pinmux, PIN_GROUP(I2C), PINMUX_FUNC_B); /* Intel S1000 CRB has an octal SPI flash. Select MST_DQ */ pinmux_pin_set(pinmux, PIN_GROUP(EM_DQ), PINMUX_FUNC_B); return 0; } SYS_INIT(intel_s1000_pinmux_init, PRE_KERNEL_2, CONFIG_PINMUX_INIT_PRIORITY); |