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- USB P4 as host fix 

This should make the USB P4 work as a USB host



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2389 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Richard Smith 2006-08-25 16:14:31 +00:00
parent 64443b8c49
commit fa60e7f9d0
2 changed files with 16 additions and 12 deletions
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2
src/include/cpu/amd/gx2def.h
View File

@ -706,6 +706,8 @@
/* SouthBridge Equates*/
/* MSR_SB and SB_SHIFT are located in CPU.inc*/
#define MSR_SB_USB2_MEM_DES ((1<<16) + MSR_SB + 0x25) /* Hack to make USB P4 work */
#define MSR_SB_GLIU ((9 << 14) + MSR_SB) /* 51024xxx or 510*xxxx - fake out just like GL0 on CPU. */
#define MSR_SB_GLPCI (MSR_SB) /* 5100xxxx - don't go to the GLIU */
#define MSR_SB_USB2 ((2 << SB_SHIFT) + MSR_SB) /* 5120xxxx */

26
src/southbridge/amd/cs5536/cs5536.c
View File

@ -157,19 +157,19 @@ static void southbridge_init(struct device *dev)
volatile unsigned long* uocmux;
unsigned long val;
printk_err("Base 0x%08x\n",USB2_SB_GLD_MSR_CAP);
printk_err("DES 0x%08x\n",MSR_SB_USB2_MEM_DES);
msr = rdmsr(USB2_SB_GLD_MSR_CAP);
printk_err("CAP 0x%08x%08x\n", msr.hi,msr.lo);
msr = rdmsr(MSR_SB_USB2_MEM_DES);
printk_err("DES 0x%08x%08x\n", msr.hi,msr.lo);
msr = rdmsr(USB2_SB_GLD_MSR_OHCI_BASE);
printk_err("OHCI base 0x%08x%08x\n", msr.hi,msr.lo);
msr.hi = 0x400000fe;
msr.lo = 0x010fffff;
msr = rdmsr(USB2_SB_GLD_MSR_EHCI_BASE);
printk_err("EHCI base 0x%08x%08x\n", msr.hi,msr.lo);
wrmsr(MSR_SB_USB2_MEM_DES, msr);
msr = rdmsr(USB2_SB_GLD_MSR_DEVCTL_BASE);
printk_err("DevCtl base 0x%08x%08x\n", msr.hi,msr.lo);
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);
@ -185,12 +185,14 @@ static void southbridge_init(struct device *dev)
val = *uocmux;
printk_err("UOCMUX is 0x%lx\n",val);
#if 0
val &= ~(0xc0);
val &= ~(0x3);
val |= 0x2;
*uocmux = val;
#endif
val = *uocmux;
printk_err("New UOCMUX is 0x%lx\n",val);
}