usb: musb: make Davinci *work* in mainline
[linux-2.6.git] / arch / arm / mach-davinci / usb.c
1 /*
2  * USB
3  */
4 #include <linux/kernel.h>
5 #include <linux/module.h>
6 #include <linux/init.h>
7 #include <linux/platform_device.h>
8 #include <linux/dma-mapping.h>
9
10 #include <linux/usb/musb.h>
11 #include <linux/usb/otg.h>
12
13 #include <mach/common.h>
14 #include <mach/hardware.h>
15 #include <mach/irqs.h>
16
17 #if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
18 static struct musb_hdrc_eps_bits musb_eps[] = {
19         { "ep1_tx", 8, },
20         { "ep1_rx", 8, },
21         { "ep2_tx", 8, },
22         { "ep2_rx", 8, },
23         { "ep3_tx", 5, },
24         { "ep3_rx", 5, },
25         { "ep4_tx", 5, },
26         { "ep4_rx", 5, },
27 };
28
29 static struct musb_hdrc_config musb_config = {
30         .multipoint     = true,
31         .dyn_fifo       = true,
32         .soft_con       = true,
33         .dma            = true,
34
35         .num_eps        = 5,
36         .dma_channels   = 8,
37         .ram_bits       = 10,
38         .eps_bits       = musb_eps,
39 };
40
41 static struct musb_hdrc_platform_data usb_data = {
42 #if defined(CONFIG_USB_MUSB_OTG)
43         /* OTG requires a Mini-AB connector */
44         .mode           = MUSB_OTG,
45 #elif defined(CONFIG_USB_MUSB_PERIPHERAL)
46         .mode           = MUSB_PERIPHERAL,
47 #elif defined(CONFIG_USB_MUSB_HOST)
48         .mode           = MUSB_HOST,
49 #endif
50         .clock          = "usb",
51         .config         = &musb_config,
52 };
53
54 static struct resource usb_resources[] = {
55         {
56                 /* physical address */
57                 .start          = DAVINCI_USB_OTG_BASE,
58                 .end            = DAVINCI_USB_OTG_BASE + 0x5ff,
59                 .flags          = IORESOURCE_MEM,
60         },
61         {
62                 .start          = IRQ_USBINT,
63                 .flags          = IORESOURCE_IRQ,
64         },
65 };
66
67 static u64 usb_dmamask = DMA_32BIT_MASK;
68
69 static struct platform_device usb_dev = {
70         .name           = "musb_hdrc",
71         .id             = -1,
72         .dev = {
73                 .platform_data          = &usb_data,
74                 .dma_mask               = &usb_dmamask,
75                 .coherent_dma_mask      = DMA_32BIT_MASK,
76         },
77         .resource       = usb_resources,
78         .num_resources  = ARRAY_SIZE(usb_resources),
79 };
80
81 void __init setup_usb(unsigned mA, unsigned potpgt_msec)
82 {
83         usb_data.power = mA / 2;
84         usb_data.potpgt = potpgt_msec / 2;
85         platform_device_register(&usb_dev);
86 }
87
88 #else
89
90 void __init setup_usb(unsigned mA, unsigned potpgt_msec)
91 {
92 }
93
94 #endif  /* CONFIG_USB_MUSB_HDRC */
95