Merge branch 'master' of git://git.denx.de/u-boot-x86

3 files changed, 62 insertions, 52 deletions

diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index c11b551..66d6e9a 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -47,6 +47,7 @@ obj-$(CONFIG_USB_XHCI) += xhci.o xhci-mem.o xhci-ring.o
 obj-$(CONFIG_USB_XHCI_KEYSTONE) += xhci-keystone.o
 obj-$(CONFIG_USB_XHCI_EXYNOS) += xhci-exynos5.o
 obj-$(CONFIG_USB_XHCI_OMAP) += xhci-omap.o
+obj-$(CONFIG_USB_XHCI_PCI) += xhci-pci.o
 
 # designware
 obj-$(CONFIG_USB_DWC2) += dwc2.o
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 991b199..b9eabc5 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -34,57 +34,6 @@ static struct pci_device_id ehci_pci_ids[] = {
 	{0, 0}
 };
 #else
-static pci_dev_t ehci_find_class(int index)
-{
-	int bus;
-	int devnum;
-	pci_dev_t bdf;
-	uint32_t class;
-
-	for (bus = 0; bus <= pci_last_busno(); bus++) {
-		for (devnum = 0; devnum < PCI_MAX_PCI_DEVICES-1; devnum++) {
-			pci_read_config_dword(PCI_BDF(bus, devnum, 0),
-					      PCI_CLASS_REVISION, &class);
-			if (class >> 16 == 0xffff)
-				continue;
-
-			for (bdf = PCI_BDF(bus, devnum, 0);
-					bdf <= PCI_BDF(bus, devnum,
-						PCI_MAX_PCI_FUNCTIONS - 1);
-					bdf += PCI_BDF(0, 0, 1)) {
-				pci_read_config_dword(bdf, PCI_CLASS_REVISION,
-						      &class);
-				class >>= 8;
-				/*
-				 * Here be dragons! In case we have multiple
-				 * PCI EHCI controllers, this function will
-				 * be called multiple times as well. This
-				 * function will scan the PCI busses, always
-				 * starting from bus 0, device 0, function 0,
-				 * until it finds an USB controller. The USB
-				 * stack gives us an 'index' of a controller
-				 * that is currently being registered, which
-				 * is a number, starting from 0 and growing
-				 * in ascending order as controllers are added.
-				 * To avoid probing the same controller in tne
-				 * subsequent runs of this function, we will
-				 * skip 'index - 1' detected controllers and
-				 * report the index'th controller.
-				 */
-				if (class != PCI_CLASS_SERIAL_USB_EHCI)
-					continue;
-				if (index) {
-					index--;
-					continue;
-				}
-				/* Return index'th controller. */
-				return bdf;
-			}
-		}
-	}
-
-	return -ENODEV;
-}
 #endif
 
 /*
@@ -102,7 +51,7 @@ int ehci_hcd_init(int index, enum usb_init_type init,
 #ifdef CONFIG_PCI_EHCI_DEVICE
 	pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE);
 #else
-	pdev = ehci_find_class(index);
+	pdev = pci_find_class(PCI_CLASS_SERIAL_USB_EHCI, index);
 #endif
 	if (pdev < 0) {
 		printf("EHCI host controller not found\n");
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
new file mode 100644
index 0000000..361fcce
--- /dev/null
+++ b/drivers/usb/host/xhci-pci.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2015, Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <pci.h>
+#include <usb.h>
+
+#include "xhci.h"
+
+/*
+ * Create the appropriate control structures to manage a new XHCI host
+ * controller.
+ */
+int xhci_hcd_init(int index, struct xhci_hccr **ret_hccr,
+		  struct xhci_hcor **ret_hcor)
+{
+	struct xhci_hccr *hccr;
+	struct xhci_hcor *hcor;
+	pci_dev_t pdev;
+	uint32_t cmd;
+	int len;
+
+	pdev = pci_find_class(PCI_CLASS_SERIAL_USB_XHCI, index);
+	if (pdev < 0) {
+		printf("XHCI host controller not found\n");
+		return -1;
+	}
+
+	hccr = (struct xhci_hccr *)pci_map_bar(pdev,
+			PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
+	len = HC_LENGTH(xhci_readl(&hccr->cr_capbase));
+	hcor = (struct xhci_hcor *)((uint32_t)hccr + len);
+
+	debug("XHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
+	      (uint32_t)hccr, (uint32_t)hcor, len);
+
+	*ret_hccr = hccr;
+	*ret_hcor = hcor;
+
+	/* enable busmaster */
+	pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
+	cmd |= PCI_COMMAND_MASTER;
+	pci_write_config_dword(pdev, PCI_COMMAND, cmd);
+
+	return 0;
+}
+
+/*
+ * Destroy the appropriate control structures corresponding * to the XHCI host
+ * controller
+ */
+void xhci_hcd_stop(int index)
+{
+}