[linux-2.6-block.git] / arch / arm / mach-davinci / usb.c

/*
 * USB
 */
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>

#include <linux/usb/musb.h>

#include <mach/common.h>
#include <mach/irqs.h>
#include <mach/cputype.h>
#include <linux/platform_data/usb-davinci.h>

#define DAVINCI_USB_OTG_BASE	0x01c64000

#define DA8XX_USB0_BASE 	0x01e00000
#define DA8XX_USB1_BASE 	0x01e25000

#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
static struct musb_hdrc_eps_bits musb_eps[] = {
	{ "ep1_tx", 8, },
	{ "ep1_rx", 8, },
	{ "ep2_tx", 8, },
	{ "ep2_rx", 8, },
	{ "ep3_tx", 5, },
	{ "ep3_rx", 5, },
	{ "ep4_tx", 5, },
	{ "ep4_rx", 5, },
};

static struct musb_hdrc_config musb_config = {
	.multipoint	= true,
	.dyn_fifo	= true,
	.soft_con	= true,
	.dma		= true,

	.num_eps	= 5,
	.dma_channels	= 8,
	.ram_bits	= 10,
	.eps_bits	= musb_eps,
};

static struct musb_hdrc_platform_data usb_data = {
	/* OTG requires a Mini-AB connector */
	.mode           = MUSB_OTG,
	.clock		= "usb",
	.config		= &musb_config,
};

static struct resource usb_resources[] = {
	{
		/* physical address */
		.start          = DAVINCI_USB_OTG_BASE,
		.end            = DAVINCI_USB_OTG_BASE + 0x5ff,
		.flags          = IORESOURCE_MEM,
	},
	{
		.start          = IRQ_USBINT,
		.flags          = IORESOURCE_IRQ,
		.name		= "mc"
	},
	{
		/* placeholder for the dedicated CPPI IRQ */
		.flags          = IORESOURCE_IRQ,
		.name		= "dma"
	},
};

static u64 usb_dmamask = DMA_BIT_MASK(32);

static struct platform_device usb_dev = {
	.name           = "musb-davinci",
	.id             = -1,
	.dev = {
		.platform_data		= &usb_data,
		.dma_mask		= &usb_dmamask,
		.coherent_dma_mask      = DMA_BIT_MASK(32),
	},
	.resource       = usb_resources,
	.num_resources  = ARRAY_SIZE(usb_resources),
};

void __init davinci_setup_usb(unsigned mA, unsigned potpgt_ms)
{
	usb_data.power = mA > 510 ? 255 : mA / 2;
	usb_data.potpgt = (potpgt_ms + 1) / 2;

	if (cpu_is_davinci_dm646x()) {
		/* Override the defaults as DM6467 uses different IRQs. */
		usb_dev.resource[1].start = IRQ_DM646X_USBINT;
		usb_dev.resource[2].start = IRQ_DM646X_USBDMAINT;
	} else	/* other devices don't have dedicated CPPI IRQ */
		usb_dev.num_resources = 2;

	platform_device_register(&usb_dev);
}

#ifdef CONFIG_ARCH_DAVINCI_DA8XX
static struct resource da8xx_usb20_resources[] = {
	{
		.start		= DA8XX_USB0_BASE,
		.end		= DA8XX_USB0_BASE + SZ_64K - 1,
		.flags		= IORESOURCE_MEM,
	},
	{
		.start		= IRQ_DA8XX_USB_INT,
		.flags		= IORESOURCE_IRQ,
		.name		= "mc",
	},
};

int __init da8xx_register_usb20(unsigned mA, unsigned potpgt)
{
	usb_data.clock  = "usb20";
	usb_data.power	= mA > 510 ? 255 : mA / 2;
	usb_data.potpgt = (potpgt + 1) / 2;

	usb_dev.resource = da8xx_usb20_resources;
	usb_dev.num_resources = ARRAY_SIZE(da8xx_usb20_resources);
	usb_dev.name = "musb-da8xx";

	return platform_device_register(&usb_dev);
}
#endif	/* CONFIG_DAVINCI_DA8XX */

#else

void __init davinci_setup_usb(unsigned mA, unsigned potpgt_ms)
{
}

#ifdef CONFIG_ARCH_DAVINCI_DA8XX
int __init da8xx_register_usb20(unsigned mA, unsigned potpgt)
{
	return 0;
}
#endif

#endif  /* CONFIG_USB_MUSB_HDRC */

#ifdef	CONFIG_ARCH_DAVINCI_DA8XX
static struct resource da8xx_usb11_resources[] = {
	[0] = {
		.start	= DA8XX_USB1_BASE,
		.end	= DA8XX_USB1_BASE + SZ_4K - 1,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= IRQ_DA8XX_IRQN,
		.end	= IRQ_DA8XX_IRQN,
		.flags	= IORESOURCE_IRQ,
	},
};

static u64 da8xx_usb11_dma_mask = DMA_BIT_MASK(32);

static struct platform_device da8xx_usb11_device = {
	.name		= "ohci",
	.id		= 0,
	.dev = {
		.dma_mask		= &da8xx_usb11_dma_mask,
		.coherent_dma_mask	= DMA_BIT_MASK(32),
	},
	.num_resources	= ARRAY_SIZE(da8xx_usb11_resources),
	.resource	= da8xx_usb11_resources,
};

int __init da8xx_register_usb11(struct da8xx_ohci_root_hub *pdata)
{
	da8xx_usb11_device.dev.platform_data = pdata;
	return platform_device_register(&da8xx_usb11_device);
}
#endif	/* CONFIG_DAVINCI_DA8XX */
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
cece6e5a DB	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 SS	16
b0ea26e1 SS	17	#define DA8XX_USB0_BASE 0x01e00000
e5d3d252	18	#define DA8XX_USB1_BASE 0x01e25000
f5c122da	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 = {
cece6e5a DB	45	/* OTG requires a Mini-AB connector */
cece6e5a DB	46	.mode = MUSB_OTG,
34f32c97	47	.clock = "usb",
cece6e5a DB	48	.config = &musb_config,
	49	};
	50
	51	static struct resource usb_resources[] = {
	52	{
	53	/* physical address */
	54	.start = DAVINCI_USB_OTG_BASE,
	55	.end = DAVINCI_USB_OTG_BASE + 0x5ff,
	56	.flags = IORESOURCE_MEM,
	57	},
	58	{
	59	.start = IRQ_USBINT,
	60	.flags = IORESOURCE_IRQ,
fcf173e4	61	.name = "mc"
cece6e5a	62	},
efd91181 SS	63	{
	64	/* placeholder for the dedicated CPPI IRQ */
	65	.flags = IORESOURCE_IRQ,
fcf173e4	66	.name = "dma"
efd91181	67	},
cece6e5a DB	68	};
cece6e5a DB	69
284901a9	70	static u64 usb_dmamask = DMA_BIT_MASK(32);
cece6e5a DB	71
cece6e5a DB	72	static struct platform_device usb_dev = {
73b089b0	73	.name = "musb-davinci",
cece6e5a DB	74	.id = -1,
	75	.dev = {
	76	.platform_data = &usb_data,
	77	.dma_mask = &usb_dmamask,
284901a9	78	.coherent_dma_mask = DMA_BIT_MASK(32),
cece6e5a DB	79	},
	80	.resource = usb_resources,
	81	.num_resources = ARRAY_SIZE(usb_resources),
	82	};
	83
355fb4e3	84	void __init davinci_setup_usb(unsigned mA, unsigned potpgt_ms)
cece6e5a	85	{
355fb4e3 SS	86	usb_data.power = mA > 510 ? 255 : mA / 2;
355fb4e3 SS	87	usb_data.potpgt = (potpgt_ms + 1) / 2;
efd91181 SS	88
	89	if (cpu_is_davinci_dm646x()) {
	90	/* Override the defaults as DM6467 uses different IRQs. */
	91	usb_dev.resource[1].start = IRQ_DM646X_USBINT;
	92	usb_dev.resource[2].start = IRQ_DM646X_USBDMAINT;
	93	} else /* other devices don't have dedicated CPPI IRQ */
	94	usb_dev.num_resources = 2;
	95
cece6e5a DB	96	platform_device_register(&usb_dev);
	97	}
	98
b0ea26e1 SS	99	#ifdef CONFIG_ARCH_DAVINCI_DA8XX
	100	static struct resource da8xx_usb20_resources[] = {
	101	{
	102	.start = DA8XX_USB0_BASE,
	103	.end = DA8XX_USB0_BASE + SZ_64K - 1,
	104	.flags = IORESOURCE_MEM,
	105	},
	106	{
	107	.start = IRQ_DA8XX_USB_INT,
	108	.flags = IORESOURCE_IRQ,
5a166f4f	109	.name = "mc",
b0ea26e1 SS	110	},
	111	};
	112
	113	int __init da8xx_register_usb20(unsigned mA, unsigned potpgt)
	114	{
	115	usb_data.clock = "usb20";
	116	usb_data.power = mA > 510 ? 255 : mA / 2;
	117	usb_data.potpgt = (potpgt + 1) / 2;
	118
	119	usb_dev.resource = da8xx_usb20_resources;
	120	usb_dev.num_resources = ARRAY_SIZE(da8xx_usb20_resources);
8ceae51e	121	usb_dev.name = "musb-da8xx";
b0ea26e1 SS	122
	123	return platform_device_register(&usb_dev);
	124	}
	125	#endif /* CONFIG_DAVINCI_DA8XX */
	126
cece6e5a DB	127	#else
cece6e5a DB	128
355fb4e3	129	void __init davinci_setup_usb(unsigned mA, unsigned potpgt_ms)
cece6e5a DB	130	{
	131	}
	132
b0ea26e1 SS	133	#ifdef CONFIG_ARCH_DAVINCI_DA8XX
	134	int __init da8xx_register_usb20(unsigned mA, unsigned potpgt)
	135	{
	136	return 0;
	137	}
	138	#endif
	139
cece6e5a DB	140	#endif /* CONFIG_USB_MUSB_HDRC */
cece6e5a DB	141
e5d3d252 SS	142	#ifdef CONFIG_ARCH_DAVINCI_DA8XX
	143	static struct resource da8xx_usb11_resources[] = {
	144	[0] = {
	145	.start = DA8XX_USB1_BASE,
	146	.end = DA8XX_USB1_BASE + SZ_4K - 1,
	147	.flags = IORESOURCE_MEM,
	148	},
	149	[1] = {
	150	.start = IRQ_DA8XX_IRQN,
	151	.end = IRQ_DA8XX_IRQN,
	152	.flags = IORESOURCE_IRQ,
	153	},
	154	};
	155
	156	static u64 da8xx_usb11_dma_mask = DMA_BIT_MASK(32);
	157
	158	static struct platform_device da8xx_usb11_device = {
	159	.name = "ohci",
	160	.id = 0,
	161	.dev = {
	162	.dma_mask = &da8xx_usb11_dma_mask,
	163	.coherent_dma_mask = DMA_BIT_MASK(32),
	164	},
	165	.num_resources = ARRAY_SIZE(da8xx_usb11_resources),
	166	.resource = da8xx_usb11_resources,
	167	};
	168
	169	int __init da8xx_register_usb11(struct da8xx_ohci_root_hub *pdata)
	170	{
	171	da8xx_usb11_device.dev.platform_data = pdata;
	172	return platform_device_register(&da8xx_usb11_device);
	173	}
	174	#endif /* CONFIG_DAVINCI_DA8XX */