add a method to print VIA xHCI host controller firmware version.
Signed-off-by: Elric Fu <elricfu1@xxxxxxxxx>
---
drivers/usb/host/xhci-pci.c | 13 +++++++++++++
drivers/usb/host/xhci.h | 1 +
2 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index ef98b38..872d024 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -35,6 +35,15 @@
static const char hcd_name[] = "xhci_hcd";
+static void xhci_via_get_fw(struct xhci_hcd *xhci, struct pci_dev *pdev)
+{
+ u32 temp;
+
+ pci_read_config_dword(pdev, 0x260, &temp);
+ xhci_dbg(xhci, "VIA xHCI Host Firmware Version is %06x\n",
+ temp >> 8);
+}
+
/* called after powerup, by probe or system-pm "wakeup" */
static int xhci_pci_reinit(struct xhci_hcd *xhci, struct pci_dev *pdev)
{
@@ -95,6 +104,10 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
xhci->quirks |= XHCI_RESET_ON_RESUME;
xhci_dbg(xhci, "QUIRK: Resetting on resume\n");
}
+ if (pdev->vendor == PCI_VENDOR_ID_VIA) {
+ xhci->quirks |= XHCI_VIA_HOST;
+ xhci_via_get_fw(xhci, pdev);
+ }
}
/* called during probe() after chip reset completes */
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index fb99c83..5b29d3c 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1462,6 +1462,7 @@ struct xhci_hcd {
#define XHCI_RESET_ON_RESUME (1 << 7)
#define XHCI_SW_BW_CHECKING (1 << 8)
#define XHCI_AMD_0x96_HOST (1 << 9)
+#define XHCI_VIA_HOST (1 << 10)
unsigned int num_active_eps;
unsigned int limit_active_eps;
/* There are two roothubs to keep track of bus suspend info for */
--
1.7.1
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