Specifications

 2012 Advanced Micro Devices, Inc.
USB – OHCI & EHCI controllers (bus-0, dev-18/19, fun-00 ~02/
bus-0, dev-20, fun-05)
AMD SP5100 Register Programming Requirements
Page 48
6.13 Enabling Fix for EHCI Controller Driver Yellow Sign Issue
ASIC Rev Register Settings Function/Comment
SP5100 A12 EHCI_PCI_Config 0x50[20] = 1 Enables the fix for the yellow sign issue observed
when the
HSET driver gets unloaded and the in box EHCI driver gets
loaded.
SATA
USB
SMBUS
PATA
AC97
HD AUDIO
LPC
PCI
For register details refer to
the sections check-marked
in the SP5100 Register
Reference Guide
X
RTC
ACPI
PM REG
A-LINK
I/O REG
XIOAPIC
6.14 Enabling Fix to Cover the Corner Case S3 Wake Up Issue
ASIC Rev Register Settings Function/Comment
SP5100 A12 OHCI 0_PCI_Config 0x50[16] = 1 Enables the fix to cover the corner case S3 wake up issue
seen with some specific USB 1.1 keyboards.
SATA
USB
SMBUS
PATA
AC97
HD AUDIO
LPC
PCI
For register details refer to
the sections check-marked
in the SP5100 Register
Reference Guide
X
RTC
ACPI
PM REG
A-LINK
I/O REG
XIOAPIC
6.15 EHCI Async Park Mode
See section 6.20
6.16 MSI Feature in USB 2.0 Controller
ASIC Rev Register Settings Function/Comment
All Revs SP5100 EHCI_PCI_Config 0x50[6] = 1 MSI function
For normal operation the MSI function should be disabled
by setting the bit in both EHCI controllers.
Bus-0, dev-18 fun 2 and Bus 0 dev-19 fun-2
SATA
USB
SMBUS
PATA
AC97
HD AUDIO
LPC
PCI
For register details refer to
the sections check-marked
in the SP5100 Register
Reference Guide
X
RTC
ACPI
PM REG
A-LINK
I/O REG
XIOAPIC