X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fusb%2Fhost%2Fehci-pci.c;h=991b19998b7e407a214f698939284577d61cb4da;hb=768f6096f9c389b5ed36bee2957bee16b085fc4a;hp=cff34389295c5d13ce12d8988bdad47ab8c64c0a;hpb=af68c066709f20fcfd0ce6cd955bfbe4642d0a15;p=u-boot

diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index cff3438929..991b19998b 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -19,37 +19,98 @@
  */
 
 #include <common.h>
+#include <errno.h>
 #include <pci.h>
 #include <usb.h>
 
 #include "ehci.h"
-#include "ehci-core.h"
 
 #ifdef CONFIG_PCI_EHCI_DEVICE
 static struct pci_device_id ehci_pci_ids[] = {
 	/* Please add supported PCI EHCI controller ids here */
-	{0x1033, 0x00E0},
+	{0x1033, 0x00E0},	/* NEC */
+	{0x10B9, 0x5239},	/* ULI1575 PCI EHCI module ids */
+	{0x12D8, 0x400F},	/* Pericom */
 	{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
 
 /*
  * Create the appropriate control structures to manage
  * a new EHCI host controller.
  */
-int ehci_hcd_init(void)
+int ehci_hcd_init(int index, enum usb_init_type init,
+		struct ehci_hccr **ret_hccr, struct ehci_hcor **ret_hcor)
 {
 	pci_dev_t pdev;
-	uint32_t addr;
+	uint32_t cmd;
+	struct ehci_hccr *hccr;
+	struct ehci_hcor *hcor;
 
+#ifdef CONFIG_PCI_EHCI_DEVICE
 	pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE);
-	if (pdev == -1) {
+#else
+	pdev = ehci_find_class(index);
+#endif
+	if (pdev < 0) {
 		printf("EHCI host controller not found\n");
 		return -1;
 	}
 
-	pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0, &addr);
-	hccr = (struct ehci_hccr *)addr;
+	hccr = (struct ehci_hccr *)pci_map_bar(pdev,
+			PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
 	hcor = (struct ehci_hcor *)((uint32_t) hccr +
 			HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
 
@@ -57,6 +118,13 @@ int ehci_hcd_init(void)
 			(uint32_t)hccr, (uint32_t)hcor,
 			(uint32_t)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
 
+	*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;
 }
 
@@ -64,7 +132,7 @@ int ehci_hcd_init(void)
  * Destroy the appropriate control structures corresponding
  * the the EHCI host controller.
  */
-int ehci_hcd_stop(void)
+int ehci_hcd_stop(int index)
 {
 	return 0;
 }