diff options
Diffstat (limited to 'src/superio/ite/it8721f/early_serial.c')
| -rw-r--r-- | src/superio/ite/it8721f/early_serial.c | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/src/superio/ite/it8721f/early_serial.c b/src/superio/ite/it8721f/early_serial.c deleted file mode 100644 index df662223dc..0000000000 --- a/src/superio/ite/it8721f/early_serial.c +++ /dev/null @@ -1,85 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2006 Uwe Hermann <uwe@hermann-uwe.de> - * Copyright (C) 2011 QingPei Wang <wangqingpei@gmail.com> - * Copyright (C) 2014 Edward O'Callaghan <eocallaghan@alterapraxis.com> - * - * 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; either version 2 of the License, or - * (at your option) any later version. - * - * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <arch/io.h> -#include <device/pnp.h> -#include <stdint.h> -#include "it8721f.h" - -/* Global configuration registers. */ -#define IT8721F_CONFIG_REG_CC 0x02 /* Configure Control (write-only). */ -#define IT8721F_CONFIG_REG_LDN 0x07 /* Logical Device Number. */ -#define IT8721F_CONFIG_REG_CLOCKSEL 0x23 /* Clock Selection. */ -#define IT8721F_CONFIG_REG_SWSUSP 0x24 /* Software Suspend, Flash I/F. */ - -static void it8721f_sio_write(device_t dev, u8 index, u8 value) -{ - pnp_set_logical_device(dev); - pnp_write_config(dev, index, value); -} - -static void it8721f_enter_conf(device_t dev) -{ - u16 port = dev >> 8; - - outb(0x87, port); - outb(0x01, port); - outb(0x55, port); - outb((port == 0x4e) ? 0xaa : 0x55, port); -} - -static void it8721f_exit_conf(device_t dev) -{ - it8721f_sio_write(dev, IT8721F_CONFIG_REG_CC, 0x02); -} - -static void it8721f_reg_write(device_t dev, u8 index, u8 value) -{ - it8721f_enter_conf(dev); - it8721f_sio_write(dev, index, value); - it8721f_exit_conf(dev); -} - - -/* - * in romstage.c - * #define CLKIN_DEV PNP_DEV(0x2e, IT8721F_GPIO) - * and pass: CLKIN_DEV - * IT8721F_UART_CLK_PREDIVIDE_24 - * IT8721F_UART_CLK_PREDIVIDE_48 (default) - */ -void it8721f_conf_clkin(device_t dev, u8 predivide) -{ - it8721f_reg_write(dev, IT8721F_CONFIG_REG_CLOCKSEL, (0x1 & predivide)); -} - - -/* Enable the serial port(s). */ -void it8721f_enable_serial(device_t dev, u16 iobase) -{ - it8721f_enter_conf(dev); - pnp_set_logical_device(dev); - pnp_set_enable(dev, 0); - pnp_set_iobase(dev, PNP_IDX_IO0, iobase); - pnp_set_enable(dev, 1); - it8721f_exit_conf(dev); -} |