mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-10-31 18:36:37 +00:00
f5c122da54
Add arch-specific ioremap() which uses any existing static mappings in place of doing a new mapping. From now on, drivers should always use ioremap() instead of IO_ADDRESS(). In addition, remove the davinci_[read|write]* macros in favor of using ioremap. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
98 lines
2.0 KiB
C
98 lines
2.0 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>
|
|
#include <mach/irqs.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,
|
|
},
|
|
};
|
|
|
|
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;
|
|
platform_device_register(&usb_dev);
|
|
}
|
|
|
|
#else
|
|
|
|
void __init setup_usb(unsigned mA, unsigned potpgt_msec)
|
|
{
|
|
}
|
|
|
|
#endif /* CONFIG_USB_MUSB_HDRC */
|
|
|