projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| cece6e5a DB |
1 | /* |
| 2 | * USB | |
| 3 | */ | |
| cece6e5a DB |
4 | #include <linux/init.h> |
| 5 | #include <linux/platform_device.h> | |
| 6 | #include <linux/dma-mapping.h> | |
| 7 | ||
| 8 | #include <linux/usb/musb.h> | |
| cece6e5a DB |
9 | |
| 10 | #include <mach/common.h> | |
| d0e58ae7 | 11 | #include <mach/irqs.h> |
| efd91181 | 12 | #include <mach/cputype.h> |
| ec2a0833 | 13 | #include <linux/platform_data/usb-davinci.h> |
| cece6e5a | 14 | |
| e5d3d252 | 15 | #define DAVINCI_USB_OTG_BASE 0x01c64000 |
| b0ea26e1 | 16 | |
| a0a56db9 | 17 | #if IS_ENABLED(CONFIG_USB_MUSB_HDRC) |
| cece6e5a DB |
18 | static struct musb_hdrc_config musb_config = { |
| 19 | .multipoint = true, | |
| cece6e5a DB |
20 | |
| 21 | .num_eps = 5, | |
| cece6e5a | 22 | .ram_bits = 10, |
| cece6e5a DB |
23 | }; |
| 24 | ||
| 25 | static struct musb_hdrc_platform_data usb_data = { | |
| cece6e5a DB |
26 | /* OTG requires a Mini-AB connector */ |
| 27 | .mode = MUSB_OTG, | |
| 34f32c97 | 28 | .clock = "usb", |
| cece6e5a DB |
29 | .config = &musb_config, |
| 30 | }; | |
| 31 | ||
| 32 | static struct resource usb_resources[] = { | |
| 33 | { | |
| 34 | /* physical address */ | |
| 35 | .start = DAVINCI_USB_OTG_BASE, | |
| 36 | .end = DAVINCI_USB_OTG_BASE + 0x5ff, | |
| 37 | .flags = IORESOURCE_MEM, | |
| 38 | }, | |
| 39 | { | |
| 40 | .start = IRQ_USBINT, | |
| 41 | .flags = IORESOURCE_IRQ, | |
| fcf173e4 | 42 | .name = "mc" |
| cece6e5a | 43 | }, |
| efd91181 SS |
44 | { |
| 45 | /* placeholder for the dedicated CPPI IRQ */ | |
| 46 | .flags = IORESOURCE_IRQ, | |
| fcf173e4 | 47 | .name = "dma" |
| efd91181 | 48 | }, |
| cece6e5a DB |
49 | }; |
| 50 | ||
| 284901a9 | 51 | static u64 usb_dmamask = DMA_BIT_MASK(32); |
| cece6e5a DB |
52 | |
| 53 | static struct platform_device usb_dev = { | |
| 73b089b0 | 54 | .name = "musb-davinci", |
| cece6e5a DB |
55 | .id = -1, |
| 56 | .dev = { | |
| 57 | .platform_data = &usb_data, | |
| 58 | .dma_mask = &usb_dmamask, | |
| 284901a9 | 59 | .coherent_dma_mask = DMA_BIT_MASK(32), |
| cece6e5a DB |
60 | }, |
| 61 | .resource = usb_resources, | |
| 62 | .num_resources = ARRAY_SIZE(usb_resources), | |
| 63 | }; | |
| 64 | ||
| 355fb4e3 | 65 | void __init davinci_setup_usb(unsigned mA, unsigned potpgt_ms) |
| cece6e5a | 66 | { |
| 355fb4e3 SS |
67 | usb_data.power = mA > 510 ? 255 : mA / 2; |
| 68 | usb_data.potpgt = (potpgt_ms + 1) / 2; | |
| efd91181 SS |
69 | |
| 70 | if (cpu_is_davinci_dm646x()) { | |
| 71 | /* Override the defaults as DM6467 uses different IRQs. */ | |
| 72 | usb_dev.resource[1].start = IRQ_DM646X_USBINT; | |
| 73 | usb_dev.resource[2].start = IRQ_DM646X_USBDMAINT; | |
| 74 | } else /* other devices don't have dedicated CPPI IRQ */ | |
| 75 | usb_dev.num_resources = 2; | |
| 76 | ||
| cece6e5a DB |
77 | platform_device_register(&usb_dev); |
| 78 | } | |
| 79 | ||
| 80 | #else | |
| 81 | ||
| 355fb4e3 | 82 | void __init davinci_setup_usb(unsigned mA, unsigned potpgt_ms) |
| cece6e5a DB |
83 | { |
| 84 | } | |
| 85 | ||
| 86 | #endif /* CONFIG_USB_MUSB_HDRC */ |