USB: add support for multiple PCI OHCI controllers

Add new configuration variable CONFIG_PCI_OHCI_DEVNO.
In case of several PCI USB controllers on a board this variable
specifys which controller to use.

Also add USB support for sokrates board.

See doc/README.generic_usb_ohci for details.

Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com>
Signed-off-by: Markus Klotzbuecher <mk@denx.de>

doc/README.generic_usb_ohci

@@ -51,6 +51,12 @@ You'll need to define
 
 	CONFIG_PCI_OHCI
 
+If you have several USB PCI controllers, define
+
+	CONFIG_PCI_OHCI_DEVNO: number of the OHCI device in PCI list
+
+If undefined, the first instance found in PCI space will be used.
+
 PCI Controllers need to do byte swapping on register accesses, so they
 should to define:
 

drivers/usb/usb_ohci.c

@@ -53,6 +53,9 @@
 
 #if defined(CONFIG_PCI_OHCI)
 # include <pci.h>
+#if !defined(CONFIG_PCI_OHCI_DEVNO)
+#define CONFIG_PCI_OHCI_DEVNO	0
+#endif
 #endif
 
 #include <malloc.h>
@@ -1818,7 +1821,7 @@ int usb_lowlevel_init(void)
 	gohci.sleeping = 0;
 	gohci.irq = -1;
 #ifdef CONFIG_PCI_OHCI
-	pdev = pci_find_devices(ohci_pci_ids, 0);
+	pdev = pci_find_devices(ohci_pci_ids, CONFIG_PCI_OHCI_DEVNO);
 
 	if (pdev != -1) {
 		u16 vid, did;

include/configs/socrates.h

@@ -232,7 +232,7 @@
 #define CONFIG_EEPRO100
 #undef CONFIG_TULIP
 
-#undef CONFIG_PCI_SCAN_SHOW		/* show pci devices on startup	*/
+#define CONFIG_PCI_SCAN_SHOW		/* show pci devices on startup	*/
 #define CFG_PCI_SUBSYS_VENDORID 0x1057	/* Motorola			*/
 
 #endif	/* CONFIG_PCI */
@@ -299,8 +299,8 @@
 #define CONFIG_CMD_MII
 #define CONFIG_CMD_NFS
 #define CONFIG_CMD_PING
-#undef CONFIG_CMD_RTC
 #define CONFIG_CMD_SNTP
+#define CONFIG_CMD_USB
 
 
 #if defined(CONFIG_PCI)
@@ -399,4 +399,14 @@
 #define CONFIG_OF_LIBFDT	1
 #define CONFIG_OF_BOARD_SETUP	1
 
+/* USB support */
+#define CONFIG_USB_OHCI_NEW		1
+#define CONFIG_PCI_OHCI			1
+#define CONFIG_PCI_OHCI_DEVNO		3 /* Number in PCI list */
+#define CFG_USB_OHCI_MAX_ROOT_PORTS	15
+#define CFG_USB_OHCI_SLOT_NAME		"ohci_pci"
+#define CFG_OHCI_SWAP_REG_ACCESS	1
+#define CONFIG_DOS_PARTITION		1
+#define CONFIG_USB_STORAGE		1
+
 #endif	/* __CONFIG_H */