[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/module.h>
#include <linux/init.h>
#include <linux/dma-mapping.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/io.h>
#include <linux/gpio.h>
#include <linux/clk.h>
#include <linux/spi/spi.h>
#include <linux/spi/eeprom.h>

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

#include <mach/hardware.h>
#include <mach/dm355.h>
#include <mach/psc.h>
#include <mach/common.h>
#include <mach/i2c.h>
#include <mach/serial.h>
#include <mach/nand.h>
#include <mach/mmc.h>

#define DAVINCI_ASYNC_EMIF_CONTROL_BASE		0x01e10000
#define DAVINCI_ASYNC_EMIF_DATA_CE0_BASE	0x02000000

/* 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,
	.options		= NAND_USE_FLASH_BBT,
};

static struct resource davinci_nand_resources[] = {
	{
		.start		= DAVINCI_ASYNC_EMIF_DATA_CE0_BASE,
		.end		= DAVINCI_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
		.flags		= IORESOURCE_MEM,
	}, {
		.start		= DAVINCI_ASYNC_EMIF_CONTROL_BASE,
		.end		= DAVINCI_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 struct davinci_uart_config uart_config __initdata = {
	.enabled_uarts = (1 << 0),
};

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.
 */
#ifdef CONFIG_USB_MUSB_PERIPHERAL
#define USB_ID_VALUE	0	/* ID pulled high; *should* float */
#else
#define USB_ID_VALUE	1	/* ID pulled low */
#endif

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;

	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 (IS_ERR(aemif))
		WARN("%s: unable to get AEMIF clock\n", __func__);
	else
		clk_enable(aemif);

	platform_add_devices(davinci_leopard_devices,
			     ARRAY_SIZE(davinci_leopard_devices));
	leopard_init_i2c();
	davinci_serial_init(&uart_config);

	/* 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 */
	setup_usb(500, 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));
}

static __init void dm355_leopard_irq_init(void)
{
	davinci_irq_init();
}

MACHINE_START(DM355_LEOPARD, "DaVinci DM355 leopard")
	.phys_io      = IO_PHYS,
	.io_pg_offst  = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
	.boot_params  = (0x80000100),
	.map_io	      = dm355_leopard_map_io,
	.init_irq     = dm355_leopard_irq_init,
	.timer	      = &davinci_timer,
	.init_machine = dm355_leopard_init,
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>
	11	#include <linux/module.h>
	12	#include <linux/init.h>
	13	#include <linux/dma-mapping.h>
	14	#include <linux/platform_device.h>
	15	#include <linux/mtd/mtd.h>
	16	#include <linux/mtd/partitions.h>
	17	#include <linux/mtd/nand.h>
	18	#include <linux/i2c.h>
	19	#include <linux/io.h>
	20	#include <linux/gpio.h>
	21	#include <linux/clk.h>
	22	#include <linux/spi/spi.h>
	23	#include <linux/spi/eeprom.h>
	24
	25	#include <asm/setup.h>
	26	#include <asm/mach-types.h>
	27	#include <asm/mach/arch.h>
	28	#include <asm/mach/map.h>
	29	#include <asm/mach/flash.h>
	30
	31	#include <mach/hardware.h>
	32	#include <mach/dm355.h>
	33	#include <mach/psc.h>
	34	#include <mach/common.h>
	35	#include <mach/i2c.h>
	36	#include <mach/serial.h>
	37	#include <mach/nand.h>
2dbf56ae	38	#include <mach/mmc.h>
95a3477f KH	39
	40	#define DAVINCI_ASYNC_EMIF_CONTROL_BASE 0x01e10000
	41	#define DAVINCI_ASYNC_EMIF_DATA_CE0_BASE 0x02000000
	42
	43	/* NOTE: this is geared for the standard config, with a socketed
	44	* 2 GByte Micron NAND (MT29F16G08FAA) using 128KB sectors. If you
	45	* swap chips, maybe with a different block size, partitioning may
	46	* need to be changed.
	47	*/
	48	#define NAND_BLOCK_SIZE SZ_128K
	49
	50	static struct mtd_partition davinci_nand_partitions[] = {
	51	{
	52	/* UBL (a few copies) plus U-Boot */
	53	.name = "bootloader",
	54	.offset = 0,
	55	.size = 15 * NAND_BLOCK_SIZE,
	56	.mask_flags = MTD_WRITEABLE, /* force read-only */
	57	}, {
	58	/* U-Boot environment */
	59	.name = "params",
	60	.offset = MTDPART_OFS_APPEND,
	61	.size = 1 * NAND_BLOCK_SIZE,
	62	.mask_flags = 0,
	63	}, {
	64	.name = "kernel",
	65	.offset = MTDPART_OFS_APPEND,
	66	.size = SZ_4M,
	67	.mask_flags = 0,
	68	}, {
	69	.name = "filesystem1",
	70	.offset = MTDPART_OFS_APPEND,
	71	.size = SZ_512M,
	72	.mask_flags = 0,
	73	}, {
	74	.name = "filesystem2",
	75	.offset = MTDPART_OFS_APPEND,
	76	.size = MTDPART_SIZ_FULL,
	77	.mask_flags = 0,
	78	}
	79	/* two blocks with bad block table (and mirror) at the end */
	80	};
	81
	82	static struct davinci_nand_pdata davinci_nand_data = {
	83	.mask_chipsel = BIT(14),
	84	.parts = davinci_nand_partitions,
	85	.nr_parts = ARRAY_SIZE(davinci_nand_partitions),
	86	.ecc_mode = NAND_ECC_HW_SYNDROME,
	87	.options = NAND_USE_FLASH_BBT,
	88	};
	89
	90	static struct resource davinci_nand_resources[] = {
	91	{
	92	.start = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE,
	93	.end = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
	94	.flags = IORESOURCE_MEM,
	95	}, {
	96	.start = DAVINCI_ASYNC_EMIF_CONTROL_BASE,
	97	.end = DAVINCI_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
	98	.flags = IORESOURCE_MEM,
	99	},
	100	};
	101
	102	static struct platform_device davinci_nand_device = {
103	.name = "davinci_nand",
104	.id = 0,
105
106	.num_resources = ARRAY_SIZE(davinci_nand_resources),
107	.resource = davinci_nand_resources,
108
109	.dev = {
110	.platform_data = &davinci_nand_data,
111	},
112	};
113
114	static struct davinci_i2c_platform_data i2c_pdata = {
115	.bus_freq = 400 /* kHz */,
116	.bus_delay = 0 /* usec */,
117	};
118
119	static int leopard_mmc_gpio = -EINVAL;
120
121	static void dm355leopard_mmcsd_gpios(unsigned gpio)
122	{
123	gpio_request(gpio + 0, "mmc0_ro");
124	gpio_request(gpio + 1, "mmc0_cd");
125	gpio_request(gpio + 2, "mmc1_ro");
126	gpio_request(gpio + 3, "mmc1_cd");
127
128	/* we "know" these are input-only so we don't
129	* need to call gpio_direction_input()
130	*/
131
132	leopard_mmc_gpio = gpio;
133	}
134
135	static struct i2c_board_info dm355leopard_i2c_info[] = {
136	{ I2C_BOARD_INFO("dm355leopard_msp", 0x25),
137	.platform_data = dm355leopard_mmcsd_gpios,
138	/* plus irq */ },
139	/* { I2C_BOARD_INFO("tlv320aic3x", 0x1b), }, */
140	/* { I2C_BOARD_INFO("tvp5146", 0x5d), }, */
141	};
142
143	static void __init leopard_init_i2c(void)
144	{
145	davinci_init_i2c(&i2c_pdata);
146
147	gpio_request(5, "dm355leopard_msp");
148	gpio_direction_input(5);
149	dm355leopard_i2c_info[0].irq = gpio_to_irq(5);
150
151	i2c_register_board_info(1, dm355leopard_i2c_info,
152	ARRAY_SIZE(dm355leopard_i2c_info));
153	}
154
155	static struct resource dm355leopard_dm9000_rsrc[] = {
156	{
157	/* addr */
158	.start = 0x04000000,
159	.end = 0x04000001,
160	.flags = IORESOURCE_MEM,
161	}, {
162	/* data */
163	.start = 0x04000016,
164	.end = 0x04000017,
165	.flags = IORESOURCE_MEM,
166	}, {
167	.flags = IORESOURCE_IRQ
168	\| IORESOURCE_IRQ_HIGHEDGE /* rising (active high) */,
169	},
170	};
171
172	static struct platform_device dm355leopard_dm9000 = {
173	.name = "dm9000",
174	.id = -1,
175	.resource = dm355leopard_dm9000_rsrc,
176	.num_resources = ARRAY_SIZE(dm355leopard_dm9000_rsrc),
177	};
178
179	static struct platform_device *davinci_leopard_devices[] __initdata = {
180	&dm355leopard_dm9000,
181	&davinci_nand_device,
182	};
183
184	static struct davinci_uart_config uart_config __initdata = {
185	.enabled_uarts = (1 << 0),
186	};
187
188	static void __init dm355_leopard_map_io(void)
189	{
95a3477f KH	190	dm355_init();
	191	}
	192
2dbf56ae KH	193	static int dm355leopard_mmc_get_cd(int module)
	194	{
	195	if (!gpio_is_valid(leopard_mmc_gpio))
	196	return -ENXIO;
	197	/* low == card present */
	198	return !gpio_get_value_cansleep(leopard_mmc_gpio + 2 * module + 1);
	199	}
	200
	201	static int dm355leopard_mmc_get_ro(int module)
	202	{
	203	if (!gpio_is_valid(leopard_mmc_gpio))
	204	return -ENXIO;
	205	/* high == card's write protect switch active */
	206	return gpio_get_value_cansleep(leopard_mmc_gpio + 2 * module + 0);
	207	}
	208
	209	static struct davinci_mmc_config dm355leopard_mmc_config = {
	210	.get_cd = dm355leopard_mmc_get_cd,
	211	.get_ro = dm355leopard_mmc_get_ro,
	212	.wires = 4,
	213	.max_freq = 50000000,
	214	.caps = MMC_CAP_MMC_HIGHSPEED \| MMC_CAP_SD_HIGHSPEED,
	215	};
	216
95a3477f KH	217	/* Don't connect anything to J10 unless you're only using USB host
	218	* mode and have to do so with some kind of gender-bender. If
	219	* you have proper Mini-B or Mini-A cables (or Mini-A adapters)
	220	* the ID pin won't need any help.
	221	*/
	222	#ifdef CONFIG_USB_MUSB_PERIPHERAL
	223	#define USB_ID_VALUE 0 /* ID pulled high; should float */
	224	#else
	225	#define USB_ID_VALUE 1 /* ID pulled low */
	226	#endif
	227
	228	static struct spi_eeprom at25640a = {
	229	.byte_len = SZ_64K / 8,
	230	.name = "at25640a",
	231	.page_size = 32,
	232	.flags = EE_ADDR2,
	233	};
	234
	235	static struct spi_board_info dm355_leopard_spi_info[] __initconst = {
	236	{
	237	.modalias = "at25",
	238	.platform_data = &at25640a,
	239	.max_speed_hz = 10 * 1000 * 1000, /* at 3v3 */
	240	.bus_num = 0,
	241	.chip_select = 0,
	242	.mode = SPI_MODE_0,
	243	},
	244	};
	245
	246	static __init void dm355_leopard_init(void)
	247	{
	248	struct clk *aemif;
	249
	250	gpio_request(9, "dm9000");
	251	gpio_direction_input(9);
	252	dm355leopard_dm9000_rsrc[2].start = gpio_to_irq(9);
	253
	254	aemif = clk_get(&dm355leopard_dm9000.dev, "aemif");
	255	if (IS_ERR(aemif))
	256	WARN("%s: unable to get AEMIF clock\n", __func__);
	257	else
	258	clk_enable(aemif);
	259
	260	platform_add_devices(davinci_leopard_devices,
	261	ARRAY_SIZE(davinci_leopard_devices));
	262	leopard_init_i2c();
	263	davinci_serial_init(&uart_config);
	264
	265	/* NOTE: NAND flash timings set by the UBL are slower than
	266	* needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
	267	* but could be 0x0400008c for about 25% faster page reads.
	268	*/
	269
	270	gpio_request(2, "usb_id_toggle");
	271	gpio_direction_output(2, USB_ID_VALUE);
	272	/* irlml6401 switches over 1A in under 8 msec */
	273	setup_usb(500, 8);
	274
2dbf56ae KH	275	davinci_setup_mmc(0, &dm355leopard_mmc_config);
	276	davinci_setup_mmc(1, &dm355leopard_mmc_config);
	277
95a3477f KH	278	dm355_init_spi0(BIT(0), dm355_leopard_spi_info,
	279	ARRAY_SIZE(dm355_leopard_spi_info));
	280	}
	281
	282	static __init void dm355_leopard_irq_init(void)
	283	{
	284	davinci_irq_init();
	285	}
	286
	287	MACHINE_START(DM355_LEOPARD, "DaVinci DM355 leopard")
	288	.phys_io = IO_PHYS,
	289	.io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
	290	.boot_params = (0x80000100),
	291	.map_io = dm355_leopard_map_io,
	292	.init_irq = dm355_leopard_irq_init,
	293	.timer = &davinci_timer,
	294	.init_machine = dm355_leopard_init,
	295	MACHINE_END