[deliverable/linux.git] / arch / arm / mach-davinci / board-dm355-leopard.c

/*
 * DM355 leopard board support
 *
 * Based on board-dm355-evm.c
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2. This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/nand.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/clk.h>
#include <linux/spi/spi.h>
#include <linux/spi/eeprom.h>
#include <linux/platform_data/i2c-davinci.h>
#include <linux/platform_data/mmc-davinci.h>
#include <linux/platform_data/mtd-davinci.h>
#include <linux/platform_data/usb-davinci.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>

#include <mach/common.h>
#include <mach/serial.h>

#include "davinci.h"

/* NOTE:  this is geared for the standard config, with a socketed
 * 2 GByte Micron NAND (MT29F16G08FAA) using 128KB sectors.  If you
 * swap chips, maybe with a different block size, partitioning may
 * need to be changed.
 */
#define NAND_BLOCK_SIZE		SZ_128K

static struct mtd_partition davinci_nand_partitions[] = {
	{
		/* UBL (a few copies) plus U-Boot */
		.name		= "bootloader",
		.offset		= 0,
		.size		= 15 * NAND_BLOCK_SIZE,
		.mask_flags	= MTD_WRITEABLE, /* force read-only */
	}, {
		/* U-Boot environment */
		.name		= "params",
		.offset		= MTDPART_OFS_APPEND,
		.size		= 1 * NAND_BLOCK_SIZE,
		.mask_flags	= 0,
	}, {
		.name		= "kernel",
		.offset		= MTDPART_OFS_APPEND,
		.size		= SZ_4M,
		.mask_flags	= 0,
	}, {
		.name		= "filesystem1",
		.offset		= MTDPART_OFS_APPEND,
		.size		= SZ_512M,
		.mask_flags	= 0,
	}, {
		.name		= "filesystem2",
		.offset		= MTDPART_OFS_APPEND,
		.size		= MTDPART_SIZ_FULL,
		.mask_flags	= 0,
	}
	/* two blocks with bad block table (and mirror) at the end */
};

static struct davinci_nand_pdata davinci_nand_data = {
	.mask_chipsel		= BIT(14),
	.parts			= davinci_nand_partitions,
	.nr_parts		= ARRAY_SIZE(davinci_nand_partitions),
	.ecc_mode		= NAND_ECC_HW_SYNDROME,
	.ecc_bits		= 4,
	.bbt_options		= NAND_BBT_USE_FLASH,
};

static struct resource davinci_nand_resources[] = {
	{
		.start		= DM355_ASYNC_EMIF_DATA_CE0_BASE,
		.end		= DM355_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
		.flags		= IORESOURCE_MEM,
	}, {
		.start		= DM355_ASYNC_EMIF_CONTROL_BASE,
		.end		= DM355_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
		.flags		= IORESOURCE_MEM,
	},
};

static struct platform_device davinci_nand_device = {
	.name			= "davinci_nand",
	.id			= 0,

	.num_resources		= ARRAY_SIZE(davinci_nand_resources),
	.resource		= davinci_nand_resources,

	.dev			= {
		.platform_data	= &davinci_nand_data,
	},
};

static struct davinci_i2c_platform_data i2c_pdata = {
	.bus_freq	= 400	/* kHz */,
	.bus_delay	= 0	/* usec */,
};

static int leopard_mmc_gpio = -EINVAL;

static void dm355leopard_mmcsd_gpios(unsigned gpio)
{
	gpio_request(gpio + 0, "mmc0_ro");
	gpio_request(gpio + 1, "mmc0_cd");
	gpio_request(gpio + 2, "mmc1_ro");
	gpio_request(gpio + 3, "mmc1_cd");

	/* we "know" these are input-only so we don't
	 * need to call gpio_direction_input()
	 */

	leopard_mmc_gpio = gpio;
}

static struct i2c_board_info dm355leopard_i2c_info[] = {
	{ I2C_BOARD_INFO("dm355leopard_msp", 0x25),
		.platform_data = dm355leopard_mmcsd_gpios,
		/* plus irq */ },
	/* { I2C_BOARD_INFO("tlv320aic3x", 0x1b), }, */
	/* { I2C_BOARD_INFO("tvp5146", 0x5d), }, */
};

static void __init leopard_init_i2c(void)
{
	davinci_init_i2c(&i2c_pdata);

	gpio_request(5, "dm355leopard_msp");
	gpio_direction_input(5);
	dm355leopard_i2c_info[0].irq = gpio_to_irq(5);

	i2c_register_board_info(1, dm355leopard_i2c_info,
			ARRAY_SIZE(dm355leopard_i2c_info));
}

static struct resource dm355leopard_dm9000_rsrc[] = {
	{
		/* addr */
		.start	= 0x04000000,
		.end	= 0x04000001,
		.flags	= IORESOURCE_MEM,
	}, {
		/* data */
		.start	= 0x04000016,
		.end	= 0x04000017,
		.flags	= IORESOURCE_MEM,
	}, {
		.flags	= IORESOURCE_IRQ
			| IORESOURCE_IRQ_HIGHEDGE /* rising (active high) */,
	},
};

static struct platform_device dm355leopard_dm9000 = {
	.name		= "dm9000",
	.id		= -1,
	.resource	= dm355leopard_dm9000_rsrc,
	.num_resources	= ARRAY_SIZE(dm355leopard_dm9000_rsrc),
};

static struct platform_device *davinci_leopard_devices[] __initdata = {
	&dm355leopard_dm9000,
	&davinci_nand_device,
};

static void __init dm355_leopard_map_io(void)
{
	dm355_init();
}

static int dm355leopard_mmc_get_cd(int module)
{
	if (!gpio_is_valid(leopard_mmc_gpio))
		return -ENXIO;
	/* low == card present */
	return !gpio_get_value_cansleep(leopard_mmc_gpio + 2 * module + 1);
}

static int dm355leopard_mmc_get_ro(int module)
{
	if (!gpio_is_valid(leopard_mmc_gpio))
		return -ENXIO;
	/* high == card's write protect switch active */
	return gpio_get_value_cansleep(leopard_mmc_gpio + 2 * module + 0);
}

static struct davinci_mmc_config dm355leopard_mmc_config = {
	.get_cd		= dm355leopard_mmc_get_cd,
	.get_ro		= dm355leopard_mmc_get_ro,
	.wires		= 4,
	.max_freq       = 50000000,
	.caps           = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
};

/* Don't connect anything to J10 unless you're only using USB host
 * mode *and* have to do so with some kind of gender-bender.  If
 * you have proper Mini-B or Mini-A cables (or Mini-A adapters)
 * the ID pin won't need any help.
 */
#define USB_ID_VALUE	1	/* ID pulled low */

static struct spi_eeprom at25640a = {
	.byte_len	= SZ_64K / 8,
	.name		= "at25640a",
	.page_size	= 32,
	.flags		= EE_ADDR2,
};

static struct spi_board_info dm355_leopard_spi_info[] __initconst = {
	{
		.modalias	= "at25",
		.platform_data	= &at25640a,
		.max_speed_hz	= 10 * 1000 * 1000,	/* at 3v3 */
		.bus_num	= 0,
		.chip_select	= 0,
		.mode		= SPI_MODE_0,
	},
};

static __init void dm355_leopard_init(void)
{
	struct clk *aemif;
	int ret;

	ret = dm355_gpio_register();
	if (ret)
		pr_warn("%s: GPIO init failed: %d\n", __func__, ret);

	gpio_request(9, "dm9000");
	gpio_direction_input(9);
	dm355leopard_dm9000_rsrc[2].start = gpio_to_irq(9);

	aemif = clk_get(&dm355leopard_dm9000.dev, "aemif");
	if (!WARN(IS_ERR(aemif), "unable to get AEMIF clock\n"))
		clk_prepare_enable(aemif);

	platform_add_devices(davinci_leopard_devices,
			     ARRAY_SIZE(davinci_leopard_devices));
	leopard_init_i2c();
	davinci_serial_init(dm355_serial_device);

	/* NOTE:  NAND flash timings set by the UBL are slower than
	 * needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
	 * but could be 0x0400008c for about 25% faster page reads.
	 */

	gpio_request(2, "usb_id_toggle");
	gpio_direction_output(2, USB_ID_VALUE);
	/* irlml6401 switches over 1A in under 8 msec */
	davinci_setup_usb(1000, 8);

	davinci_setup_mmc(0, &dm355leopard_mmc_config);
	davinci_setup_mmc(1, &dm355leopard_mmc_config);

	dm355_init_spi0(BIT(0), dm355_leopard_spi_info,
			ARRAY_SIZE(dm355_leopard_spi_info));
}

MACHINE_START(DM355_LEOPARD, "DaVinci DM355 leopard")
	.atag_offset  = 0x100,
	.map_io	      = dm355_leopard_map_io,
	.init_irq     = davinci_irq_init,
	.init_time	= davinci_timer_init,
	.init_machine = dm355_leopard_init,
	.init_late	= davinci_init_late,
	.dma_zone_size	= SZ_128M,
	.restart	= davinci_restart,
MACHINE_END
Commit	Line	Data
95a3477f KH	1	/*
	2	* DM355 leopard board support
	3	*
	4	* Based on board-dm355-evm.c
	5	*
	6	* This file is licensed under the terms of the GNU General Public
	7	* License version 2. This program is licensed "as is" without any
	8	* warranty of any kind, whether express or implied.
	9	*/
	10	#include <linux/kernel.h>
95a3477f	11	#include <linux/init.h>
42d399e4	12	#include <linux/err.h>
95a3477f KH	13	#include <linux/platform_device.h>
	14	#include <linux/mtd/mtd.h>
	15	#include <linux/mtd/partitions.h>
	16	#include <linux/mtd/nand.h>
	17	#include <linux/i2c.h>
95a3477f KH	18	#include <linux/gpio.h>
	19	#include <linux/clk.h>
	20	#include <linux/spi/spi.h>
	21	#include <linux/spi/eeprom.h>
834acb2a PA	22	#include <linux/platform_data/i2c-davinci.h>
	23	#include <linux/platform_data/mmc-davinci.h>
	24	#include <linux/platform_data/mtd-davinci.h>
	25	#include <linux/platform_data/usb-davinci.h>
95a3477f	26
95a3477f KH	27	#include <asm/mach-types.h>
95a3477f KH	28	#include <asm/mach/arch.h>
95a3477f	29
834acb2a	30	#include <mach/common.h>
95a3477f	31	#include <mach/serial.h>
95a3477f	32
39c6d2d1 MH	33	#include "davinci.h"
39c6d2d1 MH	34
95a3477f KH	35	/* NOTE: this is geared for the standard config, with a socketed
	36	* 2 GByte Micron NAND (MT29F16G08FAA) using 128KB sectors. If you
	37	* swap chips, maybe with a different block size, partitioning may
	38	* need to be changed.
	39	*/
	40	#define NAND_BLOCK_SIZE SZ_128K
	41
	42	static struct mtd_partition davinci_nand_partitions[] = {
	43	{
	44	/* UBL (a few copies) plus U-Boot */
	45	.name = "bootloader",
	46	.offset = 0,
	47	.size = 15 * NAND_BLOCK_SIZE,
	48	.mask_flags = MTD_WRITEABLE, /* force read-only */
	49	}, {
	50	/* U-Boot environment */
	51	.name = "params",
	52	.offset = MTDPART_OFS_APPEND,
	53	.size = 1 * NAND_BLOCK_SIZE,
	54	.mask_flags = 0,
	55	}, {
	56	.name = "kernel",
	57	.offset = MTDPART_OFS_APPEND,
	58	.size = SZ_4M,
	59	.mask_flags = 0,
	60	}, {
	61	.name = "filesystem1",
	62	.offset = MTDPART_OFS_APPEND,
	63	.size = SZ_512M,
	64	.mask_flags = 0,
	65	}, {
	66	.name = "filesystem2",
	67	.offset = MTDPART_OFS_APPEND,
	68	.size = MTDPART_SIZ_FULL,
	69	.mask_flags = 0,
	70	}
	71	/* two blocks with bad block table (and mirror) at the end */
	72	};
	73
	74	static struct davinci_nand_pdata davinci_nand_data = {
	75	.mask_chipsel = BIT(14),
	76	.parts = davinci_nand_partitions,
	77	.nr_parts = ARRAY_SIZE(davinci_nand_partitions),
	78	.ecc_mode = NAND_ECC_HW_SYNDROME,
acd36357	79	.ecc_bits = 4,
bb9ebd4e	80	.bbt_options = NAND_BBT_USE_FLASH,
95a3477f KH	81	};
	82
	83	static struct resource davinci_nand_resources[] = {
	84	{
70342174 SS	85	.start = DM355_ASYNC_EMIF_DATA_CE0_BASE,
70342174 SS	86	.end = DM355_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
95a3477f KH	87	.flags = IORESOURCE_MEM,
95a3477f KH	88	}, {
70342174 SS	89	.start = DM355_ASYNC_EMIF_CONTROL_BASE,
70342174 SS	90	.end = DM355_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
95a3477f KH	91	.flags = IORESOURCE_MEM,
	92	},
	93	};
	94
	95	static struct platform_device davinci_nand_device = {
	96	.name = "davinci_nand",
	97	.id = 0,
	98
	99	.num_resources = ARRAY_SIZE(davinci_nand_resources),
	100	.resource = davinci_nand_resources,
	101
	102	.dev = {
	103	.platform_data = &davinci_nand_data,
	104	},
	105	};
	106
	107	static struct davinci_i2c_platform_data i2c_pdata = {
	108	.bus_freq = 400 /* kHz */,
	109	.bus_delay = 0 /* usec */,
	110	};
	111
	112	static int leopard_mmc_gpio = -EINVAL;
	113
	114	static void dm355leopard_mmcsd_gpios(unsigned gpio)
	115	{
	116	gpio_request(gpio + 0, "mmc0_ro");
	117	gpio_request(gpio + 1, "mmc0_cd");
	118	gpio_request(gpio + 2, "mmc1_ro");
	119	gpio_request(gpio + 3, "mmc1_cd");
	120
	121	/* we "know" these are input-only so we don't
	122	* need to call gpio_direction_input()
	123	*/
	124
	125	leopard_mmc_gpio = gpio;
	126	}
	127
	128	static struct i2c_board_info dm355leopard_i2c_info[] = {
	129	{ I2C_BOARD_INFO("dm355leopard_msp", 0x25),
	130	.platform_data = dm355leopard_mmcsd_gpios,
	131	/* plus irq */ },
	132	/* { I2C_BOARD_INFO("tlv320aic3x", 0x1b), }, */
	133	/* { I2C_BOARD_INFO("tvp5146", 0x5d), }, */
	134	};
	135
	136	static void __init leopard_init_i2c(void)
	137	{
	138	davinci_init_i2c(&i2c_pdata);
	139
	140	gpio_request(5, "dm355leopard_msp");
	141	gpio_direction_input(5);
	142	dm355leopard_i2c_info[0].irq = gpio_to_irq(5);
	143
	144	i2c_register_board_info(1, dm355leopard_i2c_info,
	145	ARRAY_SIZE(dm355leopard_i2c_info));
	146	}
	147
	148	static struct resource dm355leopard_dm9000_rsrc[] = {
	149	{
	150	/* addr */
	151	.start = 0x04000000,
	152	.end = 0x04000001,
	153	.flags = IORESOURCE_MEM,
	154	}, {
155	/* data */
156	.start = 0x04000016,
157	.end = 0x04000017,
158	.flags = IORESOURCE_MEM,
159	}, {
160	.flags = IORESOURCE_IRQ
161	\| IORESOURCE_IRQ_HIGHEDGE /* rising (active high) */,
162	},
163	};
164
165	static struct platform_device dm355leopard_dm9000 = {
166	.name = "dm9000",
167	.id = -1,
168	.resource = dm355leopard_dm9000_rsrc,
169	.num_resources = ARRAY_SIZE(dm355leopard_dm9000_rsrc),
170	};
171
172	static struct platform_device *davinci_leopard_devices[] __initdata = {
173	&dm355leopard_dm9000,
174	&davinci_nand_device,
175	};
176
95a3477f KH	177	static void __init dm355_leopard_map_io(void)
95a3477f KH	178	{
95a3477f KH	179	dm355_init();
	180	}
	181
2dbf56ae KH	182	static int dm355leopard_mmc_get_cd(int module)
	183	{
	184	if (!gpio_is_valid(leopard_mmc_gpio))
	185	return -ENXIO;
	186	/* low == card present */
	187	return !gpio_get_value_cansleep(leopard_mmc_gpio + 2 * module + 1);
	188	}
	189
	190	static int dm355leopard_mmc_get_ro(int module)
	191	{
	192	if (!gpio_is_valid(leopard_mmc_gpio))
	193	return -ENXIO;
	194	/* high == card's write protect switch active */
	195	return gpio_get_value_cansleep(leopard_mmc_gpio + 2 * module + 0);
	196	}
	197
	198	static struct davinci_mmc_config dm355leopard_mmc_config = {
	199	.get_cd = dm355leopard_mmc_get_cd,
	200	.get_ro = dm355leopard_mmc_get_ro,
	201	.wires = 4,
	202	.max_freq = 50000000,
	203	.caps = MMC_CAP_MMC_HIGHSPEED \| MMC_CAP_SD_HIGHSPEED,
	204	};
	205
95a3477f KH	206	/* Don't connect anything to J10 unless you're only using USB host
	207	* mode and have to do so with some kind of gender-bender. If
	208	* you have proper Mini-B or Mini-A cables (or Mini-A adapters)
	209	* the ID pin won't need any help.
	210	*/
95a3477f	211	#define USB_ID_VALUE 1 /* ID pulled low */
95a3477f KH	212
	213	static struct spi_eeprom at25640a = {
	214	.byte_len = SZ_64K / 8,
	215	.name = "at25640a",
	216	.page_size = 32,
	217	.flags = EE_ADDR2,
	218	};
	219
	220	static struct spi_board_info dm355_leopard_spi_info[] __initconst = {
	221	{
	222	.modalias = "at25",
	223	.platform_data = &at25640a,
	224	.max_speed_hz = 10 * 1000 * 1000, /* at 3v3 */
	225	.bus_num = 0,
	226	.chip_select = 0,
	227	.mode = SPI_MODE_0,
	228	},
	229	};
	230
	231	static __init void dm355_leopard_init(void)
	232	{
	233	struct clk *aemif;
834acb2a PA	234	int ret;
	235
	236	ret = dm355_gpio_register();
	237	if (ret)
	238	pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
95a3477f KH	239
	240	gpio_request(9, "dm9000");
	241	gpio_direction_input(9);
	242	dm355leopard_dm9000_rsrc[2].start = gpio_to_irq(9);
	243
	244	aemif = clk_get(&dm355leopard_dm9000.dev, "aemif");
5bcd9272	245	if (!WARN(IS_ERR(aemif), "unable to get AEMIF clock\n"))
b6f1ffed	246	clk_prepare_enable(aemif);
95a3477f KH	247
	248	platform_add_devices(davinci_leopard_devices,
	249	ARRAY_SIZE(davinci_leopard_devices));
	250	leopard_init_i2c();
fcf7157b	251	davinci_serial_init(dm355_serial_device);
95a3477f KH	252
	253	/* NOTE: NAND flash timings set by the UBL are slower than
	254	* needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
	255	* but could be 0x0400008c for about 25% faster page reads.
	256	*/
	257
	258	gpio_request(2, "usb_id_toggle");
	259	gpio_direction_output(2, USB_ID_VALUE);
	260	/* irlml6401 switches over 1A in under 8 msec */
355fb4e3	261	davinci_setup_usb(1000, 8);
95a3477f	262
2dbf56ae KH	263	davinci_setup_mmc(0, &dm355leopard_mmc_config);
	264	davinci_setup_mmc(1, &dm355leopard_mmc_config);
	265
95a3477f KH	266	dm355_init_spi0(BIT(0), dm355_leopard_spi_info,
	267	ARRAY_SIZE(dm355_leopard_spi_info));
	268	}
	269
95a3477f	270	MACHINE_START(DM355_LEOPARD, "DaVinci DM355 leopard")
e7e56014	271	.atag_offset = 0x100,
95a3477f	272	.map_io = dm355_leopard_map_io,
bd808947	273	.init_irq = davinci_irq_init,
6bb27d73	274	.init_time = davinci_timer_init,
95a3477f	275	.init_machine = dm355_leopard_init,
3aa3e840	276	.init_late = davinci_init_late,
f68deabf	277	.dma_zone_size = SZ_128M,
c6121ddd	278	.restart = davinci_restart,
95a3477f	279	MACHINE_END