From: Sylvain Munaut <tnt@246tNt.com>
Date: Wed, 13 Dec 2006 20:09:55 +0000 (+0100)
Subject: ohci: Add support for OHCI controller on the of_platform bus
X-Git-Tag: v2.6.21-rc2~42^2~9^2~50
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=495a678fc62e850d15f860d39faee07ba0a8910c;p=pandora-kernel.git

ohci: Add support for OHCI controller on the of_platform bus

PPC embedded systems can have a ohci controller builtin. In the
new model, it will end up as a driver on the of_platform bus,
this patches takes care of them.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 832599852106..62711870f8ee 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -112,9 +112,30 @@ config USB_OHCI_HCD_PPC_SOC
 	  Enables support for the USB controller on the MPC52xx or
 	  STB03xxx processor chip.  If unsure, say Y.
 
+config USB_OHCI_HCD_PPC_OF
+	bool "OHCI support for PPC USB controller on OF platform bus"
+	depends on USB_OHCI_HCD && PPC_OF
+	default y
+	---help---
+	  Enables support for the USB controller PowerPC present on the
+	  OpenFirmware platform bus.
+
+config USB_OHCI_HCD_PPC_OF_BE
+	bool "Support big endian HC"
+	depends on USB_OHCI_HCD_PPC_OF
+	default y
+	select USB_OHCI_BIG_ENDIAN_DESC
+	select USB_OHCI_BIG_ENDIAN_MMIO
+
+config USB_OHCI_HCD_PPC_OF_LE
+	bool "Support little endian HC"
+	depends on USB_OHCI_HCD_PPC_OF
+	default n
+	select USB_OHCI_LITTLE_ENDIAN
+
 config USB_OHCI_HCD_PCI
 	bool "OHCI support for PCI-bus USB controllers"
-	depends on USB_OHCI_HCD && PCI && (STB03xxx || PPC_MPC52xx)
+	depends on USB_OHCI_HCD && PCI && (STB03xxx || PPC_MPC52xx || USB_OHCI_HCD_PPC_OF)
 	default y
 	select USB_OHCI_LITTLE_ENDIAN
 	---help---
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 3f80003b40bd..8baecbdf0621 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -914,8 +914,14 @@ MODULE_LICENSE ("GPL");
 #endif
 
 
+#ifdef CONFIG_USB_OHCI_HCD_PPC_OF
+#include "ohci-ppc-of.c"
+#define OF_PLATFORM_DRIVER	ohci_hcd_ppc_of_driver
+#endif
+
 #if	!defined(PCI_DRIVER) &&		\
 	!defined(PLATFORM_DRIVER) &&	\
+	!defined(OF_PLATFORM_DRIVER) &&	\
 	!defined(SA1111_DRIVER)
 #error "missing bus glue for ohci-hcd"
 #endif
@@ -939,6 +945,13 @@ static int __init ohci_hcd_mod_init(void)
 	ls++;
 #endif
 
+#ifdef OF_PLATFORM_DRIVER
+	retval = of_register_platform_driver(&OF_PLATFORM_DRIVER);
+	if (retval < 0)
+		goto error;
+	ls++;
+#endif
+
 #ifdef SA1111_DRIVER
 	retval = sa1111_driver_register(&SA1111_DRIVER);
 	if (retval < 0)
@@ -961,6 +974,10 @@ error:
 	if (ls--)
 		platform_driver_unregister(&PLATFORM_DRIVER);
 #endif
+#ifdef OF_PLATFORM_DRIVER
+	if (ls--)
+		of_unregister_platform_driver(&OF_PLATFORM_DRIVER);
+#endif
 #ifdef SA1111_DRIVER
 	if (ls--)
 		sa1111_driver_unregister(&SA1111_DRIVER);
@@ -977,6 +994,9 @@ static void __exit ohci_hcd_mod_exit(void)
 #ifdef SA1111_DRIVER
 	sa1111_driver_unregister(&SA1111_DRIVER);
 #endif
+#ifdef OF_PLATFORM_DRIVER
+	of_unregister_platform_driver(&OF_PLATFORM_DRIVER);
+#endif
 #ifdef PLATFORM_DRIVER
 	platform_driver_unregister(&PLATFORM_DRIVER);
 #endif
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