/* * This file is part of the coreboot project. * * Copyright (C) 2013 Google Inc. * Copyright (C) 2015 Intel Corp. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc. */ #include #include #include #include #include /* * return family number and internal pad number in that community * by pad number and which community it is in. */ /* family number in high byte and inner pad number in lowest byte */ void car_mainboard_pre_console_init(void) { uint32_t reg; uint32_t *pad_config_reg; /* Enable the UART hardware for COM1. */ reg = 1; pci_write_config32(PCI_DEV(0, LPC_DEV, 0), UART_CONT, reg); /* * Set up the pads to select the UART function * AD12 SW16(UART1_DATAIN/UART0_DATAIN) - Setting Mode 2 for UART0_RXD * AD10 SW20(UART1_DATAOUT/UART0_DATAOUT) - Setting Mode 2 for UART0_TXD */ pad_config_reg = gpio_pad_config_reg(GP_SOUTHWEST, UART1_RXD_PAD); write32(pad_config_reg, SET_PAD_MODE_SELECTION(PAD_CONFIG0_DEFAULT0, M2)); pad_config_reg = gpio_pad_config_reg(GP_SOUTHWEST, UART1_TXD_PAD); write32(pad_config_reg, SET_PAD_MODE_SELECTION(PAD_CONFIG0_DEFAULT0, M2)); }