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author | David S. Miller <davem@davemloft.net> | 2008-10-11 12:39:35 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2008-10-11 12:39:35 -0700 |
commit | 56c5d900dbb8e042bfad035d18433476931d8f93 (patch) | |
tree | 00b793965beeef10db03e0ff021d2d965c410759 /arch/arm/mach-davinci/usb.c | |
parent | 4dd95b63ae25c5cad6986829b5e8788e9faa0330 (diff) | |
parent | ead9d23d803ea3a73766c3cb27bf7563ac8d7266 (diff) | |
download | op-kernel-dev-56c5d900dbb8e042bfad035d18433476931d8f93.zip op-kernel-dev-56c5d900dbb8e042bfad035d18433476931d8f93.tar.gz |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
sound/core/memalloc.c
Diffstat (limited to 'arch/arm/mach-davinci/usb.c')
-rw-r--r-- | arch/arm/mach-davinci/usb.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/usb.c b/arch/arm/mach-davinci/usb.c new file mode 100644 index 0000000..fe182a8 --- /dev/null +++ b/arch/arm/mach-davinci/usb.c @@ -0,0 +1,116 @@ +/* + * 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 */ + |