1/* 2 * USB 3 */ 4#include <linux/init.h> 5#include <linux/platform_device.h> 6#include <linux/dma-mapping.h> 7 8#include <linux/usb/musb.h> 9 10#include <mach/common.h> 11#include <mach/irqs.h> 12#include <mach/cputype.h> 13#include <mach/usb.h> 14 15#define DAVINCI_USB_OTG_BASE 0x01c64000 16 17#define DA8XX_USB0_BASE 0x01e00000 18#define DA8XX_USB1_BASE 0x01e25000 19 20#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE) 21static 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 32static 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 44static 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 53 .clock = "usb", 54 .config = &musb_config, 55}; 56 57static 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 }, 68 { 69 /* placeholder for the dedicated CPPI IRQ */ 70 .flags = IORESOURCE_IRQ, 71 }, 72}; 73 74static u64 usb_dmamask = DMA_BIT_MASK(32); 75 76static struct platform_device usb_dev = { 77 .name = "musb_hdrc", 78 .id = -1, 79 .dev = { 80 .platform_data = &usb_data, 81 .dma_mask = &usb_dmamask, 82 .coherent_dma_mask = DMA_BIT_MASK(32), 83 }, 84 .resource = usb_resources, 85 .num_resources = ARRAY_SIZE(usb_resources), 86}; 87 88void __init davinci_setup_usb(unsigned mA, unsigned potpgt_ms) 89{ 90 usb_data.power = mA > 510 ? 255 : mA / 2; 91 usb_data.potpgt = (potpgt_ms + 1) / 2; 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; 99 100 platform_device_register(&usb_dev); 101} 102 103#ifdef CONFIG_ARCH_DAVINCI_DA8XX 104static struct resource da8xx_usb20_resources[] = { 105 { 106 .start = DA8XX_USB0_BASE, 107 .end = DA8XX_USB0_BASE + SZ_64K - 1, 108 .flags = IORESOURCE_MEM, 109 }, 110 { 111 .start = IRQ_DA8XX_USB_INT, 112 .flags = IORESOURCE_IRQ, 113 }, 114}; 115 116int __init da8xx_register_usb20(unsigned mA, unsigned potpgt) 117{ 118 usb_data.clock = "usb20"; 119 usb_data.power = mA > 510 ? 255 : mA / 2; 120 usb_data.potpgt = (potpgt + 1) / 2; 121 122 usb_dev.resource = da8xx_usb20_resources; 123 usb_dev.num_resources = ARRAY_SIZE(da8xx_usb20_resources); 124 125 return platform_device_register(&usb_dev); 126} 127#endif /* CONFIG_DAVINCI_DA8XX */ 128 129#else 130 131void __init davinci_setup_usb(unsigned mA, unsigned potpgt_ms) 132{ 133} 134 135#ifdef CONFIG_ARCH_DAVINCI_DA8XX 136int __init da8xx_register_usb20(unsigned mA, unsigned potpgt) 137{ 138 return 0; 139} 140#endif 141 142#endif /* CONFIG_USB_MUSB_HDRC */ 143 144#ifdef CONFIG_ARCH_DAVINCI_DA8XX 145static struct resource da8xx_usb11_resources[] = { 146 [0] = { 147 .start = DA8XX_USB1_BASE, 148 .end = DA8XX_USB1_BASE + SZ_4K - 1, 149 .flags = IORESOURCE_MEM, 150 }, 151 [1] = { 152 .start = IRQ_DA8XX_IRQN, 153 .end = IRQ_DA8XX_IRQN, 154 .flags = IORESOURCE_IRQ, 155 }, 156}; 157 158static u64 da8xx_usb11_dma_mask = DMA_BIT_MASK(32); 159 160static struct platform_device da8xx_usb11_device = { 161 .name = "ohci", 162 .id = 0, 163 .dev = { 164 .dma_mask = &da8xx_usb11_dma_mask, 165 .coherent_dma_mask = DMA_BIT_MASK(32), 166 }, 167 .num_resources = ARRAY_SIZE(da8xx_usb11_resources), 168 .resource = da8xx_usb11_resources, 169}; 170 171int __init da8xx_register_usb11(struct da8xx_ohci_root_hub *pdata) 172{ 173 da8xx_usb11_device.dev.platform_data = pdata; 174 return platform_device_register(&da8xx_usb11_device); 175} 176#endif /* CONFIG_DAVINCI_DA8XX */ 177