ARM: LPC32xx: USB Support
This patch adds OHCI support to the LPC32xx ARM platform. Besides the trivial
addition of platform "usb-ohci" support, fixes for the USB PLL have been added
to arch/arm/mach-lpc32xx/clock.c, ported from NXP's lpclinux.com.
(This is the mach-lpc32xx specific part, the USB subsystem specific changes are
in a separate patch for the USB maintainers.)
Signed-off-by: Roland Stigge <stigge@antcom.de>
diff --git a/arch/arm/mach-lpc32xx/common.c b/arch/arm/mach-lpc32xx/common.c
index 6c76bb3..11c9008 100644
--- a/arch/arm/mach-lpc32xx/common.c
+++ b/arch/arm/mach-lpc32xx/common.c
@@ -160,6 +160,32 @@
};
/*
+ * USB support
+ */
+/* The dmamask must be set for OHCI to work */
+static u64 ohci_dmamask = ~(u32) 0;
+static struct resource ohci_resources[] = {
+ {
+ .start = IO_ADDRESS(LPC32XX_USB_BASE),
+ .end = IO_ADDRESS(LPC32XX_USB_BASE + 0x100 - 1),
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = IRQ_LPC32XX_USB_HOST,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+struct platform_device lpc32xx_ohci_device = {
+ .name = "usb-ohci",
+ .id = -1,
+ .dev = {
+ .dma_mask = &ohci_dmamask,
+ .coherent_dma_mask = 0xFFFFFFFF,
+ },
+ .num_resources = ARRAY_SIZE(ohci_resources),
+ .resource = ohci_resources,
+};
+
+/*
* Returns the unique ID for the device
*/
void lpc32xx_get_uid(u32 devid[4])