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- /* SPDX-License-Identifier: GPL-2.0+ */
- /*
- * board.h
- *
- * EETS GmbH PDU001 board information header
- *
- * Copyright (C) 2018 EETS GmbH - http://www.eets.ch/
- *
- * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
- */
- #ifndef _BOARD_H_
- #define _BOARD_H_
- /*
- * We have two pin mux functions that must exist. First we need I2C0 to
- * access the TPS65910 PMIC located on the M2 computing module.
- * Second, if we want low-level debugging or a early UART (ie. before the
- * pin controller driver is running), we need one of the UART ports UART0 to
- * UART5 (usually UART3 since it is wired to K2).
- * In case of I2C0 access we explicitly don't rely on the the ROM but we could
- * do so as we use the primary mode (mode 0) for I2C0.
- * All other multiplexing and pin configuration is done by the DT once it
- * gets parsed by the pin controller driver.
- * However we relay on the ROM to configure the pins of MMC0 (eMMC) as well
- * as MMC1 (microSD card-cage) since these are our boot devices.
- */
- void enable_uart0_pin_mux(void);
- void enable_uart1_pin_mux(void);
- void enable_uart2_pin_mux(void);
- void enable_uart3_pin_mux(void);
- void enable_uart4_pin_mux(void);
- void enable_uart5_pin_mux(void);
- void enable_uart_pin_mux(u32 addr);
- void enable_i2c0_pin_mux(void);
- #endif
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