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Moved some generic 8254 PIT #defines out of the speaker code to legacy.h.

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Use legacy.h PIT defines in Geode code.

Signed-off-by: Marc Jones <marc.jones@amd.com>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@433 f3766cd6-281f-0410-b1cd-43a5c92072e9
This commit is contained in:
Marc Jones 2007-07-05 16:58:10 +00:00
parent b1ef1489a0
commit 7c9c8db800
3 changed files with 38 additions and 10 deletions
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7
arch/x86/geodelx/geodelx.c
View file

@ -30,6 +30,7 @@
#include <io.h>
#include <amd_geodelx.h>
#include <spd.h>
#include <legacy.h>
/* all these functions used to be in a lot of fiddly little files. To
* make it easier to find functions, we are merging them here. This
@ -41,8 +42,6 @@
/**
* Starts Timer 1 for port 61 use.
* 0x43 is PIT command/control.
* 0x41 is PIT counter 1.
*
* The command 0x56 means write counter 1 lower 8 bits in next IO,
* set the counter mode to square wave generator (count down to 0
@ -58,8 +57,8 @@
*/
void start_timer1(void)
{
outb(0x56, 0x43);
outb(0x12, 0x41);
outb(0x56, I82C54_CONTROL_WORD_REGISTER);
outb(0x12, I82C54_COUNTER1);
}
/**

7
arch/x86/speaker.c
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@ -27,12 +27,7 @@
#include <io.h>
#include <lib.h>
#define I82C54_CONTROL_WORD_REGISTER 0x43 /* Write-only. */
#define I82C54_COUNTER0 0x40
#define I82C54_COUNTER1 0x41
#define I82C54_COUNTER2 0x42
#include <legacy.h>
#define PC_SPEAKER_PORT 0x61

34
include/arch/x86/legacy.h Normal file
View file

@ -0,0 +1,34 @@
/*
* This file is part of the LinuxBIOS project.
*
* Copyright (C) 2007 Uwe Hermann <uwe@hermann-uwe.de>
*
* 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
*/
/*
* Datasheet:
* - Name: 82C54 CHMOS Programmable Interval Timer
* - PDF: http://www.intel.com/design/archives/periphrl/docs/23124406.pdf
* - Order number: 231244-006
*
* See also:
* - http://en.wikipedia.org/wiki/Intel_8253
*/
#define I82C54_CONTROL_WORD_REGISTER 0x43 /* Write-only. */
#define I82C54_COUNTER0 0x40
#define I82C54_COUNTER1 0x41
#define I82C54_COUNTER2 0x42