[PATCH 10/10] USB ppc4xx: Add Synopsys DWC OTG driver kernel configuration and Makefile

[tmarri at apm.com]

From: Tirumala Marri <tmarri at apm.com>

Add Synopsys DesignWare HS USB OTG driver kernel configuration.
Synopsys OTG driver may operate in  host only, device only, or OTG mode.
The driver also allows user configure the core to use its internal DMA
or Slave (PIO) mode.

Signed-off-by: Tirumala R Marri <tmarri at apm.com>
Signed-off-by: Fushen Chen <fchen at apm.com>
Signed-off-by: Mark Miesfeld <mmiesfeld at apm.com>
---
 drivers/Makefile             |    2 +
 drivers/usb/Kconfig          |    3 +-
 drivers/usb/otg/dwc/Kconfig  |   96 ++++++++++++++++++++++++++++++++++++++++++
 drivers/usb/otg/dwc/Makefile |   19 ++++++++
 4 files changed, 119 insertions(+), 1 deletions(-)
 create mode 100644 drivers/usb/otg/dwc/Kconfig
 create mode 100644 drivers/usb/otg/dwc/Makefile

diff --git a/drivers/Makefile b/drivers/Makefile
index 2cbb4b7..3bfc728 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -65,6 +65,7 @@ obj-$(CONFIG_PARIDE) 		+= block/paride/
 obj-$(CONFIG_TC)		+= tc/
 obj-$(CONFIG_UWB)		+= uwb/
 obj-$(CONFIG_USB_OTG_UTILS)	+= usb/otg/
+obj-$(CONFIG_USB_DWC_OTG)	+= usb/otg/dwc/
 obj-$(CONFIG_USB)		+= usb/
 obj-$(CONFIG_USB_MUSB_HDRC)	+= usb/musb/
 obj-$(CONFIG_PCI)		+= usb/
@@ -105,6 +106,7 @@ obj-$(CONFIG_ARCH_SHMOBILE)	+= sh/
 ifndef CONFIG_ARCH_USES_GETTIMEOFFSET
 obj-y				+= clocksource/
 endif
+obj-$(CONFIG_DMA_ENGINE)       += dma/
 obj-$(CONFIG_DCA)		+= dca/
 obj-$(CONFIG_HID)		+= hid/
 obj-$(CONFIG_PPC_PS3)		+= ps3/
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index 41b6e51..887f702 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -55,7 +55,6 @@ config USB_ARCH_HAS_OHCI
 config USB_ARCH_HAS_EHCI
 	boolean
 	default y if PPC_83xx
-	default y if PPC_MPC512x
 	default y if SOC_AU1200
 	default y if ARCH_IXP4XX
 	default y if ARCH_W90X900
@@ -115,6 +114,8 @@ source "drivers/usb/host/Kconfig"
 
 source "drivers/usb/musb/Kconfig"
 
+source "drivers/usb/otg/dwc/Kconfig"
+
 source "drivers/usb/class/Kconfig"
 
 source "drivers/usb/storage/Kconfig"
diff --git a/drivers/usb/otg/dwc/Kconfig b/drivers/usb/otg/dwc/Kconfig
new file mode 100644
index 0000000..4d33d72
--- /dev/null
+++ b/drivers/usb/otg/dwc/Kconfig
@@ -0,0 +1,96 @@
+#
+# USB Dual Role (OTG-ready) Controller Drivers
+# for silicon based on Synopsys DesignWare IP
+#
+
+comment "Enable Host or Gadget support for DesignWare OTG controller"
+	depends on !USB && USB_GADGET=n
+
+config USB_DWC_OTG
+	depends on (USB || USB_GADGET)
+	select NOP_USB_XCEIV
+	select USB_OTG_UTILS
+	tristate "Synopsys DWC OTG Controller"
+	default USB_GADGET
+	help
+	  This driver provides USB Device Controller support for the
+	  Synopsys DesignWare USB OTG Core used on the AppliedMicro PowerPC SoC.
+
+config DWC_DEBUG
+	bool "Enable DWC Debugging"
+	depends on USB_DWC_OTG
+	default n
+	help
+	  Enable DWC driver debugging
+
+choice
+	prompt "DWC Mode Selection"
+	depends on USB_DWC_OTG
+	default DWC_HOST_ONLY
+	help
+	  Select the DWC Core in OTG, Host only, or Device only mode.
+
+config DWC_HOST_ONLY
+	bool "DWC Host Only Mode"
+
+config DWC_OTG_MODE
+	bool "DWC OTG Mode"
+	select USB_GADGET_SELECTED
+
+config DWC_DEVICE_ONLY
+	bool "DWC Device Only Mode"
+	select USB_GADGET_SELECTED
+
+endchoice
+
+# enable peripheral support (including with OTG)
+config USB_GADGET_DWC_HDRC
+	bool
+	depends on USB_DWC_OTG && (DWC_DEVICE_ONLY || USB_DWC_OTG)
+
+choice
+	prompt "DWC DMA/SlaveMode Selection"
+	depends on USB_DWC_OTG
+	default DWC_DMA_MODE
+	help
+	  Select the DWC DMA or Slave Mode.
+	  DMA mode uses the DWC core internal DMA engines.
+	  Slave mode uses the processor PIO to tranfer data.
+	  In Slave mode, processor's DMA channels can be used if available.
+
+config DWC_SLAVE
+	bool "DWC Slave Mode"
+
+config DWC_DMA_MODE
+	bool "DWC DMA Mode"
+
+endchoice
+
+config USB_OTG_WHITELIST
+	bool "Rely on OTG Targeted Peripherals List"
+	depends on !USB_SUSPEND && USB_DWC_OTG
+	default n
+	help
+	  This is the same flag as in ../core/Kconfig.
+	  It is here for easy deselect.
+
+config DWC_OTG_REG_LE
+	depends on USB_DWC_OTG
+	bool "DWC Little Endian Register"
+	default y
+	help
+	  OTG core register access is Little-Endian.
+
+config DWC_OTG_FIFO_LE
+	depends on USB_DWC_OTG
+	bool "DWC FIFO Little Endian"
+	default n
+	help
+	  OTG core FIFO access is Little-Endian.
+
+config DWC_LIMITED_XFER_SIZE
+	depends on USB_GADGET_DWC_HDRC
+	bool "DWC Endpoint Limited Xfer Size"
+	default n
+	help
+	  Bit fields in the Device EP Transfer Size Register is 11 bits.
diff --git a/drivers/usb/otg/dwc/Makefile b/drivers/usb/otg/dwc/Makefile
new file mode 100644
index 0000000..4102add
--- /dev/null
+++ b/drivers/usb/otg/dwc/Makefile
@@ -0,0 +1,19 @@
+#
+# OTG infrastructure and transceiver drivers
+#
+obj-$(CONFIG_USB_DWC_OTG)	+= dwc.o
+
+dwc-objs := cil.o cil_intr.o param.o
+
+ifeq ($(CONFIG_4xx_SOC),y)
+dwc-objs += apmppc.o
+endif
+
+ifneq ($(CONFIG_DWC_DEVICE_ONLY),y)
+dwc-objs += hcd.o hcd_intr.o \
+		hcd_queue.o
+endif
+
+ifneq ($(CONFIG_DWC_HOST_ONLY),y)
+dwc-objs += pcd.o pcd_intr.o
+endif
-- 
1.6.1.rc3