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- Much better USB P4 fix. 

This one actualy works.  You cannot just go mucking about with stuff that the VSA
has under its thumb.  Bad Things happen.  This does it the VSA way.



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2392 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Richard Smith 2006-08-28 16:18:32 +00:00
parent 6af77aeb40
commit bcd1f2310d
1 changed files with 15 additions and 44 deletions
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59
src/southbridge/amd/cs5536/cs5536.c
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@ -146,56 +146,27 @@ static void southbridge_init(struct device *dev)
/* Southbridge (80007800 = 00.0F.00) */
pci_assign_irqs(0, 0x0F, slots_sb); /* bus=0, device=0x0F, slots={11,5,10,10} */
#endif
if (sb->enable_USBP4_host) {
unsigned long val;
unsigned long uocmux;
outl(0x80007F10, 0xCF8);
outl(0x0EFC00000, 0xCFC);
uocmux = *((unsigned long *) 0x0EFC00004);
uocmux &= ~3;
uocmux |= 2;
*((unsigned long *) 0x0EFC00004) = uocmux;
}
/* disable unwanted virtual PCI devices */
for (i = 0; (i < MAX_UNWANTED_VPCI) && (0 != sb->unwanted_vpci[i]); i++) {
printk_debug("Disabling VPCI device: 0x%08X\n", sb->unwanted_vpci[i]);
outl(sb->unwanted_vpci[i] + 0x7C, 0xCF8);
outl(0xDEADBEEF, 0xCFC);
}
if (sb->enable_USBP4_host) {
volatile unsigned long* uocmux;
unsigned long val;
printk_err("DES 0x%08x\n",MSR_SB_USB2_MEM_DES);
msr = rdmsr(MSR_SB_USB2_MEM_DES);
printk_err("DES 0x%08x%08x\n", msr.hi,msr.lo);
msr.hi = 0x400000fe;
msr.lo = 0x010fffff;
wrmsr(MSR_SB_USB2_MEM_DES, msr);
msr = rdmsr(MSR_SB_USB2_MEM_DES);
printk_err("New DES 0x%08x%08x\n", msr.hi,msr.lo);
msr = rdmsr(USB2_SB_GLD_MSR_UOC_BASE);
printk_err("Old UOC Base 0x%08x%08x\n", msr.hi,msr.lo);
msr.hi |= 0xa;
msr.lo |= 0xfe010000;
wrmsr(USB2_SB_GLD_MSR_UOC_BASE, msr);
msr = rdmsr(USB2_SB_GLD_MSR_UOC_BASE);
printk_err("New UOC Base 0x%08x%08x\n", msr.hi,msr.lo);
uocmux = (unsigned long *)(msr.lo+4);
val = *uocmux;
printk_err("UOCMUX is 0x%lx\n",val);
val &= ~(0x3);
val |= 0x2;
*uocmux = val;
val = *uocmux;
printk_err("New UOCMUX is 0x%lx\n",val);
}
}