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/*
* USB
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/usb/musb.h>
#include <linux/usb/otg.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/irqs.h>
#include <mach/cputype.h>
#define DAVINCI_USB_OTG_BASE 0x01C64000
#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
static struct musb_hdrc_eps_bits musb_eps[] = {
{ "ep1_tx", 8, },
{ "ep1_rx", 8, },
{ "ep2_tx", 8, },
{ "ep2_rx", 8, },
{ "ep3_tx", 5, },
{ "ep3_rx", 5, },
{ "ep4_tx", 5, },
{ "ep4_rx", 5, },
};
static struct musb_hdrc_config musb_config = {
.multipoint = true,
.dyn_fifo = true,
.soft_con = true,
.dma = true,
.num_eps = 5,
.dma_channels = 8,
.ram_bits = 10,
.eps_bits = musb_eps,
};
static struct musb_hdrc_platform_data usb_data = {
#if defined(CONFIG_USB_MUSB_OTG)
/* OTG requires a Mini-AB connector */
.mode = MUSB_OTG,
#elif defined(CONFIG_USB_MUSB_PERIPHERAL)
.mode = MUSB_PERIPHERAL,
#elif defined(CONFIG_USB_MUSB_HOST)
.mode = MUSB_HOST,
#endif
.clock = "usb",
.config = &musb_config,
};
static struct resource usb_resources[] = {
{
/* physical address */
.start = DAVINCI_USB_OTG_BASE,
.end = DAVINCI_USB_OTG_BASE + 0x5ff,
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_USBINT,
.flags = IORESOURCE_IRQ,
},
{
/* placeholder for the dedicated CPPI IRQ */
.flags = IORESOURCE_IRQ,
},
};
static u64 usb_dmamask = DMA_BIT_MASK(32);
static struct platform_device usb_dev = {
.name = "musb_hdrc",
.id = -1,
.dev = {
.platform_data = &usb_data,
.dma_mask = &usb_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.resource = usb_resources,
.num_resources = ARRAY_SIZE(usb_resources),
};
void __init setup_usb(unsigned mA, unsigned potpgt_msec)
{
usb_data.power = mA / 2;
usb_data.potpgt = potpgt_msec / 2;
if (cpu_is_davinci_dm646x()) {
/* Override the defaults as DM6467 uses different IRQs. */
usb_dev.resource[1].start = IRQ_DM646X_USBINT;
usb_dev.resource[2].start = IRQ_DM646X_USBDMAINT;
} else /* other devices don't have dedicated CPPI IRQ */
usb_dev.num_resources = 2;
platform_device_register(&usb_dev);
}
#else
void __init setup_usb(unsigned mA, unsigned potpgt_msec)
{
}
#endif /* CONFIG_USB_MUSB_HDRC */
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