diff options
Diffstat (limited to 'src/southbridge/intel/lynxpoint')
| -rw-r--r-- | src/southbridge/intel/lynxpoint/usb_xhci.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/src/southbridge/intel/lynxpoint/usb_xhci.c b/src/southbridge/intel/lynxpoint/usb_xhci.c index e09134081c..997ef61098 100644 --- a/src/southbridge/intel/lynxpoint/usb_xhci.c +++ b/src/southbridge/intel/lynxpoint/usb_xhci.c @@ -37,8 +37,6 @@ static u32 usb_xhci_mem_base(device_t dev) return mem_base & ~0xf; } -#ifdef __SMM__ - static int usb_xhci_port_count_usb3(device_t dev) { if (pch_is_lp()) { @@ -127,7 +125,8 @@ static void usb_xhci_reset_usb3(device_t dev, int all) continue; status = read32(portsc) & XHCI_USB3_PORTSC_PLS; /* Reset all or only disconnected ports */ - if (all || status == XHCI_PLSR_RXDETECT) + if (all || (status == XHCI_PLSR_RXDETECT || + status == XHCI_PLSR_POLLING)) usb_xhci_reset_port_usb3(mem_base, port); else port_disabled |= 1 << port; @@ -156,6 +155,8 @@ static void usb_xhci_reset_usb3(device_t dev, int all) usb_xhci_reset_status_usb3(mem_base, port); } +#ifdef __SMM__ + /* Handler for XHCI controller on entry to S3/S4/S5 */ void usb_xhci_sleep_prepare(device_t dev, u8 slp_typ) { @@ -350,6 +351,12 @@ static void usb_xhci_init(device_t dev) reg32 &= ~(1 << 23); /* unsupported request */ reg32 |= (1 << 31); pci_write_config32(dev, 0x40, reg32); + + if (acpi_is_wakeup_s3()) { + /* Reset ports that are disabled or + * polling before returning to the OS. */ + usb_xhci_reset_usb3(dev, 0); + } } static void usb_xhci_set_subsystem(device_t dev, unsigned vendor, |