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 #define DAVINCI_USB_OTG_BASE 0x01C64000
18
19 #if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
20 static struct musb_hdrc_eps_bits musb_eps[] = {
21 { "ep1_tx", 8, },
22 { "ep1_rx", 8, },
23 { "ep2_tx", 8, },
24 { "ep2_rx", 8, },
25 { "ep3_tx", 5, },
26 { "ep3_rx", 5, },
27 { "ep4_tx", 5, },
28 { "ep4_rx", 5, },
29 };
30
31 static struct musb_hdrc_config musb_config = {
32 .multipoint = true,
33 .dyn_fifo = true,
34 .soft_con = true,
35 .dma = true,
36
37 .num_eps = 5,
38 .dma_channels = 8,
39 .ram_bits = 10,
40 .eps_bits = musb_eps,
41 };
42
43 static struct musb_hdrc_platform_data usb_data = {
44 #if defined(CONFIG_USB_MUSB_OTG)
45 /* OTG requires a Mini-AB connector */
46 .mode = MUSB_OTG,
47 #elif defined(CONFIG_USB_MUSB_PERIPHERAL)
48 .mode = MUSB_PERIPHERAL,
49 #elif defined(CONFIG_USB_MUSB_HOST)
50 .mode = MUSB_HOST,
51 #endif
52 .clock = "usb",
53 .config = &musb_config,
54 };
55
56 static struct resource usb_resources[] = {
57 {
58 /* physical address */
59 .start = DAVINCI_USB_OTG_BASE,
60 .end = DAVINCI_USB_OTG_BASE + 0x5ff,
61 .flags = IORESOURCE_MEM,
62 },
63 {
64 .start = IRQ_USBINT,
65 .flags = IORESOURCE_IRQ,
66 },
67 };
68
69 static u64 usb_dmamask = DMA_BIT_MASK(32);
70
71 static struct platform_device usb_dev = {
72 .name = "musb_hdrc",
73 .id = -1,
74 .dev = {
75 .platform_data = &usb_data,
76 .dma_mask = &usb_dmamask,
77 .coherent_dma_mask = DMA_BIT_MASK(32),
78 },
79 .resource = usb_resources,
80 .num_resources = ARRAY_SIZE(usb_resources),
81 };
82
83 void __init setup_usb(unsigned mA, unsigned potpgt_msec)
84 {
85 usb_data.power = mA / 2;
86 usb_data.potpgt = potpgt_msec / 2;
87 platform_device_register(&usb_dev);
88 }
89
90 #else
91
92 void __init setup_usb(unsigned mA, unsigned potpgt_msec)
93 {
94 }
95
96 #endif /* CONFIG_USB_MUSB_HDRC */
97
98
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