| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2017-2018 Intel Corporation |
| * |
| * 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. |
| */ |
| |
| #include <console/console.h> |
| #include <device/pci_def.h> |
| #include <intelblocks/gpio.h> |
| #include <intelblocks/lpss.h> |
| #include <intelblocks/pcr.h> |
| #include <intelblocks/uart.h> |
| #include <soc/iomap.h> |
| #include <soc/pch.h> |
| #include <soc/pci_devs.h> |
| #include <soc/pcr_ids.h> |
| |
| const struct uart_gpio_pad_config uart_gpio_pads[] = { |
| { |
| .console_index = 0, |
| .gpios = { |
| PAD_CFG_NF(GPP_C8, NONE, DEEP, NF1), /* UART0 RX */ |
| PAD_CFG_NF(GPP_C9, NONE, DEEP, NF1), /* UART0 TX */ |
| }, |
| }, |
| { |
| .console_index = 1, |
| .gpios = { |
| PAD_CFG_NF(GPP_C12, NONE, DEEP, NF1), /* UART1 RX */ |
| PAD_CFG_NF(GPP_C13, NONE, DEEP, NF1), /* UART1 TX */ |
| }, |
| }, |
| { |
| .console_index = 2, |
| .gpios = { |
| PAD_CFG_NF(GPP_C20, NONE, DEEP, NF1), /* UART2 RX */ |
| PAD_CFG_NF(GPP_C21, NONE, DEEP, NF1), /* UART2 TX */ |
| }, |
| } |
| }; |
| |
| const int uart_max_index = ARRAY_SIZE(uart_gpio_pads); |
| |
| DEVTREE_CONST struct device *soc_uart_console_to_device(int uart_console) |
| { |
| /* |
| * if index is valid, this function will return corresponding structure |
| * for uart console else will return NULL. |
| */ |
| switch (uart_console) { |
| case 0: |
| return pcidev_path_on_root(PCH_DEVFN_UART0); |
| case 1: |
| return pcidev_path_on_root(PCH_DEVFN_UART1); |
| case 2: |
| return pcidev_path_on_root(PCH_DEVFN_UART2); |
| default: |
| printk(BIOS_ERR, "Invalid UART console index\n"); |
| return NULL; |
| } |
| } |