projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| cece6e5a DB |
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> | |
| d0e58ae7 | 15 | #include <mach/irqs.h> |
| efd91181 | 16 | #include <mach/cputype.h> |
| cece6e5a | 17 | |
| f5c122da KH |
18 | #define DAVINCI_USB_OTG_BASE 0x01C64000 |
| 19 | ||
| cece6e5a DB |
20 | #if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE) |
| 21 | static struct musb_hdrc_eps_bits musb_eps[] = { | |
| 22 | { "ep1_tx", 8, }, | |
| 23 | { "ep1_rx", 8, }, | |
| 24 | { "ep2_tx", 8, }, | |
| 25 | { "ep2_rx", 8, }, | |
| 26 | { "ep3_tx", 5, }, | |
| 27 | { "ep3_rx", 5, }, | |
| 28 | { "ep4_tx", 5, }, | |
| 29 | { "ep4_rx", 5, }, | |
| 30 | }; | |
| 31 | ||
| 32 | static struct musb_hdrc_config musb_config = { | |
| 33 | .multipoint = true, | |
| 34 | .dyn_fifo = true, | |
| 35 | .soft_con = true, | |
| 36 | .dma = true, | |
| 37 | ||
| 38 | .num_eps = 5, | |
| 39 | .dma_channels = 8, | |
| 40 | .ram_bits = 10, | |
| 41 | .eps_bits = musb_eps, | |
| 42 | }; | |
| 43 | ||
| 44 | static struct musb_hdrc_platform_data usb_data = { | |
| 45 | #if defined(CONFIG_USB_MUSB_OTG) | |
| 46 | /* OTG requires a Mini-AB connector */ | |
| 47 | .mode = MUSB_OTG, | |
| 48 | #elif defined(CONFIG_USB_MUSB_PERIPHERAL) | |
| 49 | .mode = MUSB_PERIPHERAL, | |
| 50 | #elif defined(CONFIG_USB_MUSB_HOST) | |
| 51 | .mode = MUSB_HOST, | |
| 52 | #endif | |
| 34f32c97 | 53 | .clock = "usb", |
| cece6e5a DB |
54 | .config = &musb_config, |
| 55 | }; | |
| 56 | ||
| 57 | static struct resource usb_resources[] = { | |
| 58 | { | |
| 59 | /* physical address */ | |
| 60 | .start = DAVINCI_USB_OTG_BASE, | |
| 61 | .end = DAVINCI_USB_OTG_BASE + 0x5ff, | |
| 62 | .flags = IORESOURCE_MEM, | |
| 63 | }, | |
| 64 | { | |
| 65 | .start = IRQ_USBINT, | |
| 66 | .flags = IORESOURCE_IRQ, | |
| 67 | }, | |
| efd91181 SS |
68 | { |
| 69 | /* placeholder for the dedicated CPPI IRQ */ | |
| 70 | .flags = IORESOURCE_IRQ, | |
| 71 | }, | |
| cece6e5a DB |
72 | }; |
| 73 | ||
| 284901a9 | 74 | static u64 usb_dmamask = DMA_BIT_MASK(32); |
| cece6e5a DB |
75 | |
| 76 | static struct platform_device usb_dev = { | |
| 77 | .name = "musb_hdrc", | |
| 78 | .id = -1, | |
| 79 | .dev = { | |
| 80 | .platform_data = &usb_data, | |
| 81 | .dma_mask = &usb_dmamask, | |
| 284901a9 | 82 | .coherent_dma_mask = DMA_BIT_MASK(32), |
| cece6e5a DB |
83 | }, |
| 84 | .resource = usb_resources, | |
| 85 | .num_resources = ARRAY_SIZE(usb_resources), | |
| 86 | }; | |
| 87 | ||
| cece6e5a DB |
88 | void __init setup_usb(unsigned mA, unsigned potpgt_msec) |
| 89 | { | |
| 90 | usb_data.power = mA / 2; | |
| 91 | usb_data.potpgt = potpgt_msec / 2; | |
| efd91181 SS |
92 | |
| 93 | if (cpu_is_davinci_dm646x()) { | |
| 94 | /* Override the defaults as DM6467 uses different IRQs. */ | |
| 95 | usb_dev.resource[1].start = IRQ_DM646X_USBINT; | |
| 96 | usb_dev.resource[2].start = IRQ_DM646X_USBDMAINT; | |
| 97 | } else /* other devices don't have dedicated CPPI IRQ */ | |
| 98 | usb_dev.num_resources = 2; | |
| 99 | ||
| cece6e5a DB |
100 | platform_device_register(&usb_dev); |
| 101 | } | |
| 102 | ||
| 103 | #else | |
| 104 | ||
| 105 | void __init setup_usb(unsigned mA, unsigned potpgt_msec) | |
| 106 | { | |
| 107 | } | |
| 108 | ||
| 109 | #endif /* CONFIG_USB_MUSB_HDRC */ | |
| 110 |