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add SystemPreInit() and support

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git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2254 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Ronald G. Minnich
2006-04-13 19:44:50 +00:00
parent d8d8fffa0e
commit ea9db56d0e
3 changed files with 26 additions and 3 deletions
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22
src/cpu/amd/model_gx2/syspreinit.c Normal file
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@@ -0,0 +1,22 @@
/* ***************************************************************************/
/* **/
/* * StartTimer1*/
/* **/
/* * Entry: none*/
/* * Exit: Starts Timer 1 for port 61 use*/
/* * Destroys: Al,*/
/* **/
/* ***************************************************************************/
void
StartTimer1(void){
outb(0x56, 0x43);
outb(0x12, 0x41);
}
void
SystemPreInit(void){
/* they want a jump ... */
__asm__("jmp .+2\ninvd\njmp.+2\n");
StartTimer1();
}