a20ac2f7b3
This continues what was done in commit a73b93157f
(tree: drop last paragraph of GPL copyright header)
Change-Id: Ifb8d2d13f7787657445817bdde8dc15df375e173
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/12914
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/*
|
|
* This file is part of the coreboot project.
|
|
*
|
|
* Copyright (C) 2008 Arastra, Inc.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef SUPERIO_INTEL_I8900_I8900_H
|
|
#define SUPERIO_INTEL_I8900_I8900_H
|
|
|
|
/*
|
|
* The SIW ("Serial I/O and Watchdog Timer") integrated into the i8900 is
|
|
* very similar to a Super I/O, both in functionality and config mechanism.
|
|
*
|
|
* The SIW contains:
|
|
* - UART(s)
|
|
* - Serial interrupt controller
|
|
* - Watchdog timer (WDT)
|
|
* - LPC interface
|
|
*/
|
|
|
|
/* Logical device numbers (LDNs). */
|
|
#define I8900_SP1 0x04 /* Com1 */
|
|
#define I8900_SP2 0x05 /* Com2 */
|
|
#define I8900_WDT 0x06 /* Watchdog timer */
|
|
|
|
/* Registers and bit definitions: */
|
|
|
|
#define I8900_SIW_CONFIGURATION 0x29
|
|
|
|
/*
|
|
* SIW_CONFIGURATION[3:2] = UART_CLK predivide
|
|
* 00: divide by 1
|
|
* 01: divide by 8
|
|
* 10: divide by 26
|
|
* 11: reserved
|
|
*/
|
|
#define I8900_UART_CLK_PREDIVIDE_1 0x00
|
|
#define I8900_UART_CLK_PREDIVIDE_8 0x01
|
|
#define I8900_UART_CLK_PREDIVIDE_26 0x02
|
|
#define I8900_ENABLE_SIRQ 0x01
|
|
|
|
void i8900_configure_uart_clk(device_t dev, u8 predivide);
|
|
void i8900_enable_serial(device_t dev, u16 iobase);
|
|
void i8900_enable_wdt(device_t dev, u16 iobase);
|
|
|
|
#endif
|