usb: ohci-da8xx can only be built-in
The PHY setup code of the TI DaVinci DA8xx OHCI controller
uses ad-hoc register access using a pointer that is meant to
be used only by the DaVinci platform implementation and that
is intentionally not exported to loadable modules. This results
in a link error on configurations that use a modular OHCI
code on this platform.
While the proper solution for this problem would be to
implement a real PHY driver shared by ohci-da8xx and musb-da8xx,
this patch for now just works around the build error by
only allowing the ohci-da8xx code to be built-in.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 22b5062..363fc21 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -435,6 +435,16 @@
Enables support for the on-chip OHCI controller on
OMAP3 and later chips.
+config USB_OHCI_HCD_DAVINCI
+ bool "OHCI support for TI DaVinci DA8xx"
+ depends on ARCH_DAVINCI_DA8XX
+ depends on USB_OHCI_HCD=y
+ default y
+ help
+ Enables support for the DaVinci DA8xx integrated OHCI
+ controller. This driver cannot currently be a loadable
+ module because it lacks a proper PHY abstraction.
+
config USB_OHCI_ATH79
bool "USB OHCI support for the Atheros AR71XX/AR7240 SoCs (DEPRECATED)"
depends on (SOC_AR71XX || SOC_AR724X)