mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 12:43:55 +08:00
cece6e5af2
Declare the musb_hdrc platform device for DaVinci. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
117 lines
2.3 KiB
C
117 lines
2.3 KiB
C
/*
|
|
* 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>
|
|
|
|
#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
|
|
.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,
|
|
},
|
|
};
|
|
|
|
static u64 usb_dmamask = DMA_32BIT_MASK;
|
|
|
|
static struct platform_device usb_dev = {
|
|
.name = "musb_hdrc",
|
|
.id = -1,
|
|
.dev = {
|
|
.platform_data = &usb_data,
|
|
.dma_mask = &usb_dmamask,
|
|
.coherent_dma_mask = DMA_32BIT_MASK,
|
|
},
|
|
.resource = usb_resources,
|
|
.num_resources = ARRAY_SIZE(usb_resources),
|
|
};
|
|
|
|
#ifdef CONFIG_USB_MUSB_OTG
|
|
|
|
static struct otg_transceiver *xceiv;
|
|
|
|
struct otg_transceiver *otg_get_transceiver(void)
|
|
{
|
|
if (xceiv)
|
|
get_device(xceiv->dev);
|
|
return xceiv;
|
|
}
|
|
EXPORT_SYMBOL(otg_get_transceiver);
|
|
|
|
int otg_set_transceiver(struct otg_transceiver *x)
|
|
{
|
|
if (xceiv && x)
|
|
return -EBUSY;
|
|
xceiv = x;
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(otg_set_transceiver);
|
|
|
|
#endif
|
|
|
|
void __init setup_usb(unsigned mA, unsigned potpgt_msec)
|
|
{
|
|
usb_data.power = mA / 2;
|
|
usb_data.potpgt = potpgt_msec / 2;
|
|
platform_device_register(&usb_dev);
|
|
}
|
|
|
|
#else
|
|
|
|
void __init setup_usb(unsigned mA, unsigned potpgt_msec)
|
|
{
|
|
}
|
|
|
|
#endif /* CONFIG_USB_MUSB_HDRC */
|
|
|