[deliverable/linux.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 <mach/da8xx.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 IS_ENABLED(CONFIG_USB_MUSB_HDRC)
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>
215a084d	13	#include <mach/da8xx.h>
ec2a0833	14	#include <linux/platform_data/usb-davinci.h>
cece6e5a	15
e5d3d252	16	#define DAVINCI_USB_OTG_BASE 0x01c64000
b0ea26e1 SS	17
b0ea26e1 SS	18	#define DA8XX_USB0_BASE 0x01e00000
e5d3d252	19	#define DA8XX_USB1_BASE 0x01e25000
f5c122da	20
a0a56db9	21	#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
cece6e5a DB	22	static struct musb_hdrc_eps_bits musb_eps[] = {
	23	{ "ep1_tx", 8, },
	24	{ "ep1_rx", 8, },
	25	{ "ep2_tx", 8, },
	26	{ "ep2_rx", 8, },
	27	{ "ep3_tx", 5, },
	28	{ "ep3_rx", 5, },
	29	{ "ep4_tx", 5, },
	30	{ "ep4_rx", 5, },
	31	};
	32
	33	static struct musb_hdrc_config musb_config = {
	34	.multipoint = true,
	35	.dyn_fifo = true,
	36	.soft_con = true,
	37	.dma = true,
	38
	39	.num_eps = 5,
	40	.dma_channels = 8,
	41	.ram_bits = 10,
	42	.eps_bits = musb_eps,
	43	};
	44
	45	static struct musb_hdrc_platform_data usb_data = {
cece6e5a DB	46	/* OTG requires a Mini-AB connector */
cece6e5a DB	47	.mode = MUSB_OTG,
34f32c97	48	.clock = "usb",
cece6e5a DB	49	.config = &musb_config,
	50	};
	51
	52	static struct resource usb_resources[] = {
	53	{
	54	/* physical address */
	55	.start = DAVINCI_USB_OTG_BASE,
	56	.end = DAVINCI_USB_OTG_BASE + 0x5ff,
	57	.flags = IORESOURCE_MEM,
	58	},
	59	{
	60	.start = IRQ_USBINT,
	61	.flags = IORESOURCE_IRQ,
fcf173e4	62	.name = "mc"
cece6e5a	63	},
efd91181 SS	64	{
	65	/* placeholder for the dedicated CPPI IRQ */
	66	.flags = IORESOURCE_IRQ,
fcf173e4	67	.name = "dma"
efd91181	68	},
cece6e5a DB	69	};
cece6e5a DB	70
284901a9	71	static u64 usb_dmamask = DMA_BIT_MASK(32);
cece6e5a DB	72
cece6e5a DB	73	static struct platform_device usb_dev = {
73b089b0	74	.name = "musb-davinci",
cece6e5a DB	75	.id = -1,
	76	.dev = {
	77	.platform_data = &usb_data,
	78	.dma_mask = &usb_dmamask,
284901a9	79	.coherent_dma_mask = DMA_BIT_MASK(32),
cece6e5a DB	80	},
	81	.resource = usb_resources,
	82	.num_resources = ARRAY_SIZE(usb_resources),
	83	};
	84
355fb4e3	85	void __init davinci_setup_usb(unsigned mA, unsigned potpgt_ms)
cece6e5a	86	{
355fb4e3 SS	87	usb_data.power = mA > 510 ? 255 : mA / 2;
355fb4e3 SS	88	usb_data.potpgt = (potpgt_ms + 1) / 2;
efd91181 SS	89
	90	if (cpu_is_davinci_dm646x()) {
	91	/* Override the defaults as DM6467 uses different IRQs. */
	92	usb_dev.resource[1].start = IRQ_DM646X_USBINT;
	93	usb_dev.resource[2].start = IRQ_DM646X_USBDMAINT;
	94	} else /* other devices don't have dedicated CPPI IRQ */
	95	usb_dev.num_resources = 2;
	96
cece6e5a DB	97	platform_device_register(&usb_dev);
	98	}
	99
b0ea26e1 SS	100	#ifdef CONFIG_ARCH_DAVINCI_DA8XX
	101	static struct resource da8xx_usb20_resources[] = {
	102	{
	103	.start = DA8XX_USB0_BASE,
	104	.end = DA8XX_USB0_BASE + SZ_64K - 1,
	105	.flags = IORESOURCE_MEM,
	106	},
	107	{
	108	.start = IRQ_DA8XX_USB_INT,
	109	.flags = IORESOURCE_IRQ,
5a166f4f	110	.name = "mc",
b0ea26e1 SS	111	},
	112	};
	113
	114	int __init da8xx_register_usb20(unsigned mA, unsigned potpgt)
	115	{
	116	usb_data.clock = "usb20";
	117	usb_data.power = mA > 510 ? 255 : mA / 2;
	118	usb_data.potpgt = (potpgt + 1) / 2;
	119
	120	usb_dev.resource = da8xx_usb20_resources;
	121	usb_dev.num_resources = ARRAY_SIZE(da8xx_usb20_resources);
8ceae51e	122	usb_dev.name = "musb-da8xx";
b0ea26e1 SS	123
	124	return platform_device_register(&usb_dev);
	125	}
	126	#endif /* CONFIG_DAVINCI_DA8XX */
	127
cece6e5a DB	128	#else
cece6e5a DB	129
355fb4e3	130	void __init davinci_setup_usb(unsigned mA, unsigned potpgt_ms)
cece6e5a DB	131	{
	132	}
	133
b0ea26e1 SS	134	#ifdef CONFIG_ARCH_DAVINCI_DA8XX
	135	int __init da8xx_register_usb20(unsigned mA, unsigned potpgt)
	136	{
	137	return 0;
	138	}
	139	#endif
	140
cece6e5a DB	141	#endif /* CONFIG_USB_MUSB_HDRC */
cece6e5a DB	142
e5d3d252 SS	143	#ifdef CONFIG_ARCH_DAVINCI_DA8XX
	144	static struct resource da8xx_usb11_resources[] = {
	145	[0] = {
	146	.start = DA8XX_USB1_BASE,
	147	.end = DA8XX_USB1_BASE + SZ_4K - 1,
	148	.flags = IORESOURCE_MEM,
	149	},
	150	[1] = {
	151	.start = IRQ_DA8XX_IRQN,
	152	.end = IRQ_DA8XX_IRQN,
	153	.flags = IORESOURCE_IRQ,
	154	},
	155	};
	156
	157	static u64 da8xx_usb11_dma_mask = DMA_BIT_MASK(32);
	158
	159	static struct platform_device da8xx_usb11_device = {
	160	.name = "ohci",
	161	.id = 0,
	162	.dev = {
	163	.dma_mask = &da8xx_usb11_dma_mask,
	164	.coherent_dma_mask = DMA_BIT_MASK(32),
	165	},
	166	.num_resources = ARRAY_SIZE(da8xx_usb11_resources),
	167	.resource = da8xx_usb11_resources,
	168	};
	169
	170	int __init da8xx_register_usb11(struct da8xx_ohci_root_hub *pdata)
	171	{
	172	da8xx_usb11_device.dev.platform_data = pdata;
	173	return platform_device_register(&da8xx_usb11_device);
	174	}
	175	#endif /* CONFIG_DAVINCI_DA8XX */