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/* SPDX-License-Identifier: GPL-2.0+ */
* board.h
* EETS GmbH PDU001 board information header
* Copyright (C) 2018 EETS GmbH -
* Copyright (C) 2011, Texas Instruments, Incorporated -
#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);