[deliverable/linux.git] / arch / arm / mach-davinci / devices.c

/*
 * mach-davinci/devices.c
 *
 * DaVinci platform device setup/initialization
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/io.h>

#include <asm/mach/map.h>

#include <mach/hardware.h>
#include <mach/i2c.h>
#include <mach/irqs.h>
#include <mach/cputype.h>
#include <mach/mux.h>
#include <mach/edma.h>
#include <mach/mmc.h>
#include <mach/time.h>

#define DAVINCI_I2C_BASE	     0x01C21000
#define DAVINCI_MMCSD0_BASE	     0x01E10000
#define DM355_MMCSD0_BASE	     0x01E11000
#define DM355_MMCSD1_BASE	     0x01E00000

static struct resource i2c_resources[] = {
	{
		.start		= DAVINCI_I2C_BASE,
		.end		= DAVINCI_I2C_BASE + 0x40,
		.flags		= IORESOURCE_MEM,
	},
	{
		.start		= IRQ_I2C,
		.flags		= IORESOURCE_IRQ,
	},
};

static struct platform_device davinci_i2c_device = {
	.name           = "i2c_davinci",
	.id             = 1,
	.num_resources	= ARRAY_SIZE(i2c_resources),
	.resource	= i2c_resources,
};

void __init davinci_init_i2c(struct davinci_i2c_platform_data *pdata)
{
	if (cpu_is_davinci_dm644x())
		davinci_cfg_reg(DM644X_I2C);

	davinci_i2c_device.dev.platform_data = pdata;
	(void) platform_device_register(&davinci_i2c_device);
}

#if	defined(CONFIG_MMC_DAVINCI) || defined(CONFIG_MMC_DAVINCI_MODULE)

static u64 mmcsd0_dma_mask = DMA_BIT_MASK(32);

static struct resource mmcsd0_resources[] = {
	{
		/* different on dm355 */
		.start = DAVINCI_MMCSD0_BASE,
		.end   = DAVINCI_MMCSD0_BASE + SZ_4K - 1,
		.flags = IORESOURCE_MEM,
	},
	/* IRQs:  MMC/SD, then SDIO */
	{
		.start = IRQ_MMCINT,
		.flags = IORESOURCE_IRQ,
	}, {
		/* different on dm355 */
		.start = IRQ_SDIOINT,
		.flags = IORESOURCE_IRQ,
	},
	/* DMA channels: RX, then TX */
	{
		.start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCRXEVT),
		.flags = IORESOURCE_DMA,
	}, {
		.start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCTXEVT),
		.flags = IORESOURCE_DMA,
	},
};

static struct platform_device davinci_mmcsd0_device = {
	.name = "davinci_mmc",
	.id = 0,
	.dev = {
		.dma_mask = &mmcsd0_dma_mask,
		.coherent_dma_mask = DMA_BIT_MASK(32),
	},
	.num_resources = ARRAY_SIZE(mmcsd0_resources),
	.resource = mmcsd0_resources,
};

static u64 mmcsd1_dma_mask = DMA_BIT_MASK(32);

static struct resource mmcsd1_resources[] = {
	{
		.start = DM355_MMCSD1_BASE,
		.end   = DM355_MMCSD1_BASE + SZ_4K - 1,
		.flags = IORESOURCE_MEM,
	},
	/* IRQs:  MMC/SD, then SDIO */
	{
		.start = IRQ_DM355_MMCINT1,
		.flags = IORESOURCE_IRQ,
	}, {
		.start = IRQ_DM355_SDIOINT1,
		.flags = IORESOURCE_IRQ,
	},
	/* DMA channels: RX, then TX */
	{
		.start = EDMA_CTLR_CHAN(0, 30),	/* rx */
		.flags = IORESOURCE_DMA,
	}, {
		.start = EDMA_CTLR_CHAN(0, 31),	/* tx */
		.flags = IORESOURCE_DMA,
	},
};

static struct platform_device davinci_mmcsd1_device = {
	.name = "davinci_mmc",
	.id = 1,
	.dev = {
		.dma_mask = &mmcsd1_dma_mask,
		.coherent_dma_mask = DMA_BIT_MASK(32),
	},
	.num_resources = ARRAY_SIZE(mmcsd1_resources),
	.resource = mmcsd1_resources,
};


void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config)
{
	struct platform_device	*pdev = NULL;

	if (WARN_ON(cpu_is_davinci_dm646x()))
		return;

	/* REVISIT: update PINMUX, ARM_IRQMUX, and EDMA_EVTMUX here too;
	 * for example if MMCSD1 is used for SDIO, maybe DAT2 is unused.
	 *
	 * FIXME dm6441 (no MMC/SD), dm357 (one), and dm335 (two) are
	 * not handled right here ...
	 */
	switch (module) {
	case 1:
		if (!cpu_is_davinci_dm355())
			break;

		/* REVISIT we may not need all these pins if e.g. this
		 * is a hard-wired SDIO device...
		 */
		davinci_cfg_reg(DM355_SD1_CMD);
		davinci_cfg_reg(DM355_SD1_CLK);
		davinci_cfg_reg(DM355_SD1_DATA0);
		davinci_cfg_reg(DM355_SD1_DATA1);
		davinci_cfg_reg(DM355_SD1_DATA2);
		davinci_cfg_reg(DM355_SD1_DATA3);

		pdev = &davinci_mmcsd1_device;
		break;
	case 0:
		if (cpu_is_davinci_dm355()) {
			mmcsd0_resources[0].start = DM355_MMCSD0_BASE;
			mmcsd0_resources[0].end = DM355_MMCSD0_BASE + SZ_4K - 1;
			mmcsd0_resources[2].start = IRQ_DM355_SDIOINT0;

			/* expose all 6 MMC0 signals:  CLK, CMD, DATA[0..3] */
			davinci_cfg_reg(DM355_MMCSD0);

			/* enable RX EDMA */
			davinci_cfg_reg(DM355_EVT26_MMC0_RX);
		}

		else if (cpu_is_davinci_dm644x()) {
			/* REVISIT: should this be in board-init code? */
			void __iomem *base =
				IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE);

			/* Power-on 3.3V IO cells */
			__raw_writel(0, base + DM64XX_VDD3P3V_PWDN);
			/*Set up the pull regiter for MMC */
			davinci_cfg_reg(DM644X_MSTK);
		}

		pdev = &davinci_mmcsd0_device;
		break;
	}

	if (WARN_ON(!pdev))
		return;

	pdev->dev.platform_data = config;
	platform_device_register(pdev);
}

#else

void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config)
{
}

#endif

/*-------------------------------------------------------------------------*/

static struct resource wdt_resources[] = {
	{
		.start	= DAVINCI_WDOG_BASE,
		.end	= DAVINCI_WDOG_BASE + SZ_1K - 1,
		.flags	= IORESOURCE_MEM,
	},
};

struct platform_device davinci_wdt_device = {
	.name		= "watchdog",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(wdt_resources),
	.resource	= wdt_resources,
};

static void davinci_init_wdt(void)
{
	platform_device_register(&davinci_wdt_device);
}

/*-------------------------------------------------------------------------*/

struct davinci_timer_instance davinci_timer_instance[2] = {
	{
		.base		= IO_ADDRESS(DAVINCI_TIMER0_BASE),
		.bottom_irq	= IRQ_TINT0_TINT12,
		.top_irq	= IRQ_TINT0_TINT34,
	},
	{
		.base		= IO_ADDRESS(DAVINCI_TIMER1_BASE),
		.bottom_irq	= IRQ_TINT1_TINT12,
		.top_irq	= IRQ_TINT1_TINT34,
	},
};

/*-------------------------------------------------------------------------*/

static int __init davinci_init_devices(void)
{
	/* please keep these calls, and their implementations above,
	 * in alphabetical order so they're easier to sort through.
	 */
	davinci_init_wdt();

	return 0;
}
arch_initcall(davinci_init_devices);
Commit	Line	Data
d395e6ad KS	1	/*
	2	* mach-davinci/devices.c
	3	*
	4	* DaVinci platform device setup/initialization
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*/
	11
	12	#include <linux/module.h>
	13	#include <linux/kernel.h>
	14	#include <linux/init.h>
	15	#include <linux/platform_device.h>
	16	#include <linux/dma-mapping.h>
	17	#include <linux/io.h>
	18
	19	#include <asm/mach/map.h>
	20
	21	#include <mach/hardware.h>
	22	#include <mach/i2c.h>
80b02c17	23	#include <mach/irqs.h>
5526b3f7 KH	24	#include <mach/cputype.h>
5526b3f7 KH	25	#include <mach/mux.h>
2dbf56ae KH	26	#include <mach/edma.h>
2dbf56ae KH	27	#include <mach/mmc.h>
f64691b3	28	#include <mach/time.h>
d395e6ad	29
f5c122da	30	#define DAVINCI_I2C_BASE 0x01C21000
2dbf56ae KH	31	#define DAVINCI_MMCSD0_BASE 0x01E10000
	32	#define DM355_MMCSD0_BASE 0x01E11000
	33	#define DM355_MMCSD1_BASE 0x01E00000
f5c122da	34
d395e6ad KS	35	static struct resource i2c_resources[] = {
	36	{
	37	.start = DAVINCI_I2C_BASE,
	38	.end = DAVINCI_I2C_BASE + 0x40,
	39	.flags = IORESOURCE_MEM,
	40	},
	41	{
	42	.start = IRQ_I2C,
	43	.flags = IORESOURCE_IRQ,
	44	},
	45	};
	46
	47	static struct platform_device davinci_i2c_device = {
	48	.name = "i2c_davinci",
	49	.id = 1,
	50	.num_resources = ARRAY_SIZE(i2c_resources),
	51	.resource = i2c_resources,
	52	};
	53
	54	void __init davinci_init_i2c(struct davinci_i2c_platform_data *pdata)
	55	{
5526b3f7 KH	56	if (cpu_is_davinci_dm644x())
	57	davinci_cfg_reg(DM644X_I2C);
	58
d395e6ad KS	59	davinci_i2c_device.dev.platform_data = pdata;
	60	(void) platform_device_register(&davinci_i2c_device);
	61	}
	62
2dbf56ae KH	63	#if defined(CONFIG_MMC_DAVINCI) \|\| defined(CONFIG_MMC_DAVINCI_MODULE)
2dbf56ae KH	64
b0958aed	65	static u64 mmcsd0_dma_mask = DMA_BIT_MASK(32);
2dbf56ae KH	66
	67	static struct resource mmcsd0_resources[] = {
	68	{
	69	/* different on dm355 */
	70	.start = DAVINCI_MMCSD0_BASE,
	71	.end = DAVINCI_MMCSD0_BASE + SZ_4K - 1,
	72	.flags = IORESOURCE_MEM,
	73	},
	74	/* IRQs: MMC/SD, then SDIO */
	75	{
	76	.start = IRQ_MMCINT,
	77	.flags = IORESOURCE_IRQ,
	78	}, {
	79	/* different on dm355 */
	80	.start = IRQ_SDIOINT,
	81	.flags = IORESOURCE_IRQ,
	82	},
	83	/* DMA channels: RX, then TX */
	84	{
60902a2c	85	.start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCRXEVT),
2dbf56ae KH	86	.flags = IORESOURCE_DMA,
2dbf56ae KH	87	}, {
60902a2c	88	.start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCTXEVT),
2dbf56ae KH	89	.flags = IORESOURCE_DMA,
	90	},
	91	};
	92
	93	static struct platform_device davinci_mmcsd0_device = {
	94	.name = "davinci_mmc",
	95	.id = 0,
	96	.dev = {
	97	.dma_mask = &mmcsd0_dma_mask,
b0958aed	98	.coherent_dma_mask = DMA_BIT_MASK(32),
2dbf56ae KH	99	},
	100	.num_resources = ARRAY_SIZE(mmcsd0_resources),
	101	.resource = mmcsd0_resources,
	102	};
	103
b0958aed	104	static u64 mmcsd1_dma_mask = DMA_BIT_MASK(32);
2dbf56ae KH	105
	106	static struct resource mmcsd1_resources[] = {
	107	{
	108	.start = DM355_MMCSD1_BASE,
	109	.end = DM355_MMCSD1_BASE + SZ_4K - 1,
	110	.flags = IORESOURCE_MEM,
	111	},
	112	/* IRQs: MMC/SD, then SDIO */
	113	{
	114	.start = IRQ_DM355_MMCINT1,
	115	.flags = IORESOURCE_IRQ,
	116	}, {
	117	.start = IRQ_DM355_SDIOINT1,
	118	.flags = IORESOURCE_IRQ,
	119	},
	120	/* DMA channels: RX, then TX */
	121	{
60902a2c	122	.start = EDMA_CTLR_CHAN(0, 30), /* rx */
2dbf56ae KH	123	.flags = IORESOURCE_DMA,
2dbf56ae KH	124	}, {
60902a2c	125	.start = EDMA_CTLR_CHAN(0, 31), /* tx */
2dbf56ae KH	126	.flags = IORESOURCE_DMA,
	127	},
	128	};
	129
	130	static struct platform_device davinci_mmcsd1_device = {
	131	.name = "davinci_mmc",
	132	.id = 1,
	133	.dev = {
	134	.dma_mask = &mmcsd1_dma_mask,
b0958aed	135	.coherent_dma_mask = DMA_BIT_MASK(32),
2dbf56ae KH	136	},
	137	.num_resources = ARRAY_SIZE(mmcsd1_resources),
	138	.resource = mmcsd1_resources,
	139	};
	140
	141
	142	void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config)
	143	{
	144	struct platform_device *pdev = NULL;
	145
	146	if (WARN_ON(cpu_is_davinci_dm646x()))
	147	return;
	148
	149	/* REVISIT: update PINMUX, ARM_IRQMUX, and EDMA_EVTMUX here too;
	150	* for example if MMCSD1 is used for SDIO, maybe DAT2 is unused.
	151	*
	152	* FIXME dm6441 (no MMC/SD), dm357 (one), and dm335 (two) are
	153	* not handled right here ...
	154	*/
	155	switch (module) {
	156	case 1:
	157	if (!cpu_is_davinci_dm355())
	158	break;
	159
	160	/* REVISIT we may not need all these pins if e.g. this
	161	* is a hard-wired SDIO device...
	162	*/
	163	davinci_cfg_reg(DM355_SD1_CMD);
	164	davinci_cfg_reg(DM355_SD1_CLK);
	165	davinci_cfg_reg(DM355_SD1_DATA0);
	166	davinci_cfg_reg(DM355_SD1_DATA1);
	167	davinci_cfg_reg(DM355_SD1_DATA2);
	168	davinci_cfg_reg(DM355_SD1_DATA3);
	169
	170	pdev = &davinci_mmcsd1_device;
	171	break;
	172	case 0:
	173	if (cpu_is_davinci_dm355()) {
	174	mmcsd0_resources[0].start = DM355_MMCSD0_BASE;
	175	mmcsd0_resources[0].end = DM355_MMCSD0_BASE + SZ_4K - 1;
	176	mmcsd0_resources[2].start = IRQ_DM355_SDIOINT0;
	177
	178	/* expose all 6 MMC0 signals: CLK, CMD, DATA[0..3] */
	179	davinci_cfg_reg(DM355_MMCSD0);
	180
	181	/* enable RX EDMA */
	182	davinci_cfg_reg(DM355_EVT26_MMC0_RX);
	183	}
	184
	185	else if (cpu_is_davinci_dm644x()) {
	186	/* REVISIT: should this be in board-init code? */
	187	void __iomem *base =
	188	IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE);
	189
	190	/* Power-on 3.3V IO cells */
	191	__raw_writel(0, base + DM64XX_VDD3P3V_PWDN);
	192	/Set up the pull regiter for MMC /
	193	davinci_cfg_reg(DM644X_MSTK);
	194	}
	195
	196	pdev = &davinci_mmcsd0_device;
	197	break;
	198	}
	199
200	if (WARN_ON(!pdev))
201	return;
202
203	pdev->dev.platform_data = config;
204	platform_device_register(pdev);
205	}
206
207	#else
208
209	void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config)
210	{
211	}
212
213	#endif
214
fb631387 KH	215	/-------------------------------------------------------------------------/
	216
	217	static struct resource wdt_resources[] = {
	218	{
5fcd294d KH	219	.start = DAVINCI_WDOG_BASE,
5fcd294d KH	220	.end = DAVINCI_WDOG_BASE + SZ_1K - 1,
fb631387 KH	221	.flags = IORESOURCE_MEM,
	222	},
	223	};
	224
	225	struct platform_device davinci_wdt_device = {
	226	.name = "watchdog",
	227	.id = -1,
	228	.num_resources = ARRAY_SIZE(wdt_resources),
	229	.resource = wdt_resources,
	230	};
	231
	232	static void davinci_init_wdt(void)
	233	{
	234	platform_device_register(&davinci_wdt_device);
	235	}
	236
	237	/-------------------------------------------------------------------------/
	238
f64691b3 MG	239	struct davinci_timer_instance davinci_timer_instance[2] = {
	240	{
	241	.base = IO_ADDRESS(DAVINCI_TIMER0_BASE),
	242	.bottom_irq = IRQ_TINT0_TINT12,
	243	.top_irq = IRQ_TINT0_TINT34,
	244	},
	245	{
	246	.base = IO_ADDRESS(DAVINCI_TIMER1_BASE),
	247	.bottom_irq = IRQ_TINT1_TINT12,
	248	.top_irq = IRQ_TINT1_TINT34,
	249	},
	250	};
	251
	252	/-------------------------------------------------------------------------/
	253
fb631387 KH	254	static int __init davinci_init_devices(void)
	255	{
	256	/* please keep these calls, and their implementations above,
	257	* in alphabetical order so they're easier to sort through.
	258	*/
	259	davinci_init_wdt();
	260
	261	return 0;
	262	}
	263	arch_initcall(davinci_init_devices);
	264