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patches from Yh Lu. Tested and working on HDAMA

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git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1068 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Ronald G. Minnich
2003-08-04 22:13:57 +00:00
parent a43048d371
commit 60e185fcc4
11 changed files with 354 additions and 68 deletions
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29
src/cpu/k8/cpufixup.c
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@@ -32,15 +32,28 @@ void k8_cpufixup(struct mem_range *mem)
mmio_basek = tomk;
}
/* Setup TOP_MEM */
msr.hi = mmio_basek >> 22;
msr.lo = mmio_basek << 10;
wrmsr(TOP_MEM, msr);
#if 1
/* Report the amount of memory. */
print_debug("cpufixup RAM: 0x");
print_debug_hex32(tomk);
print_debug(" KB\r\n");
#endif
/* Now set top of memory */
msr.lo = (tomk & 0x003fffff) << 10;
msr.hi = (tomk & 0xffc00000) >> 22;
wrmsr(TOP_MEM2, msr);
/* Leave a 64M hole between TOP_MEM and TOP_MEM2
* so I can see my rom chip and other I/O devices.
*/
if (tomk >= 0x003f0000) {
tomk = 0x3f0000;
} // tom_k = 0x3c0000;
msr.lo = (tomk & 0x003fffff) << 10;
msr.hi = (tomk & 0xffc00000) >> 22;
wrmsr(TOP_MEM, msr);
/* Setup TOP_MEM2 */
msr.hi = tomk >> 22;
msr.lo = tomk << 10;
wrmsr(TOP_MEM2, msr);
/* zero the IORR's before we enable to prevent
* undefined side effects.