[deliverable/linux.git] / arch / arm / mach-omap2 / board-omap3beagle.c

/*
 * linux/arch/arm/mach-omap2/board-omap3beagle.c
 *
 * Copyright (C) 2008 Texas Instruments
 *
 * Modified from mach-omap2/board-3430sdp.c
 *
 * Initial code: Syed Mohammed Khasim
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/leds.h>
#include <linux/gpio.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>

#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/nand.h>

#include <linux/i2c/twl4030.h>

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

#include <mach/board.h>
#include <mach/common.h>
#include <mach/gpmc.h>
#include <mach/nand.h>
#include <mach/mux.h>

#include "mmc-twl4030.h"

#define GPMC_CS0_BASE  0x60
#define GPMC_CS_SIZE   0x30

#define NAND_BLOCK_SIZE		SZ_128K

static struct mtd_partition omap3beagle_nand_partitions[] = {
	/* All the partition sizes are listed in terms of NAND block size */
	{
		.name		= "X-Loader",
		.offset		= 0,
		.size		= 4 * NAND_BLOCK_SIZE,
		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
	},
	{
		.name		= "U-Boot",
		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x80000 */
		.size		= 15 * NAND_BLOCK_SIZE,
		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
	},
	{
		.name		= "U-Boot Env",
		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x260000 */
		.size		= 1 * NAND_BLOCK_SIZE,
	},
	{
		.name		= "Kernel",
		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x280000 */
		.size		= 32 * NAND_BLOCK_SIZE,
	},
	{
		.name		= "File System",
		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x680000 */
		.size		= MTDPART_SIZ_FULL,
	},
};

static struct omap_nand_platform_data omap3beagle_nand_data = {
	.options	= NAND_BUSWIDTH_16,
	.parts		= omap3beagle_nand_partitions,
	.nr_parts	= ARRAY_SIZE(omap3beagle_nand_partitions),
	.dma_channel	= -1,		/* disable DMA in OMAP NAND driver */
	.nand_setup	= NULL,
	.dev_ready	= NULL,
};

static struct resource omap3beagle_nand_resource = {
	.flags		= IORESOURCE_MEM,
};

static struct platform_device omap3beagle_nand_device = {
	.name		= "omap2-nand",
	.id		= -1,
	.dev		= {
		.platform_data	= &omap3beagle_nand_data,
	},
	.num_resources	= 1,
	.resource	= &omap3beagle_nand_resource,
};

static struct omap_uart_config omap3_beagle_uart_config __initdata = {
	.enabled_uarts	= ((1 << 0) | (1 << 1) | (1 << 2)),
};

static struct twl4030_hsmmc_info mmc[] = {
	{
		.mmc		= 1,
		.wires		= 8,
		.gpio_wp	= 29,
	},
	{}	/* Terminator */
};

static struct gpio_led gpio_leds[];

static int beagle_twl_gpio_setup(struct device *dev,
		unsigned gpio, unsigned ngpio)
{
	/* gpio + 0 is "mmc0_cd" (input/IRQ) */
	omap_cfg_reg(AH8_34XX_GPIO29);
	mmc[0].gpio_cd = gpio + 0;
	twl4030_mmc_init(mmc);

	/* REVISIT: need ehci-omap hooks for external VBUS
	 * power switch and overcurrent detect
	 */

	gpio_request(gpio + 1, "EHCI_nOC");
	gpio_direction_input(gpio + 1);

	/* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
	gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
	gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1);

	/* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
	gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;

	return 0;
}

static struct twl4030_gpio_platform_data beagle_gpio_data = {
	.gpio_base	= OMAP_MAX_GPIO_LINES,
	.irq_base	= TWL4030_GPIO_IRQ_BASE,
	.irq_end	= TWL4030_GPIO_IRQ_END,
	.use_leds	= true,
	.pullups	= BIT(1),
	.pulldowns	= BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
				| BIT(15) | BIT(16) | BIT(17),
	.setup		= beagle_twl_gpio_setup,
};

static struct twl4030_platform_data beagle_twldata = {
	.irq_base	= TWL4030_IRQ_BASE,
	.irq_end	= TWL4030_IRQ_END,

	/* platform_data for children goes here */
	.gpio		= &beagle_gpio_data,
};

static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
	{
		I2C_BOARD_INFO("twl4030", 0x48),
		.flags = I2C_CLIENT_WAKE,
		.irq = INT_34XX_SYS_NIRQ,
		.platform_data = &beagle_twldata,
	},
};

static int __init omap3_beagle_i2c_init(void)
{
	omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
			ARRAY_SIZE(beagle_i2c_boardinfo));
#ifdef CONFIG_I2C2_OMAP_BEAGLE
	omap_register_i2c_bus(2, 400, NULL, 0);
#endif
	omap_register_i2c_bus(3, 400, NULL, 0);
	return 0;
}

static void __init omap3_beagle_init_irq(void)
{
	omap2_init_common_hw();
	omap_init_irq();
	omap_gpio_init();
}

static struct platform_device omap3_beagle_lcd_device = {
	.name		= "omap3beagle_lcd",
	.id		= -1,
};

static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
	.ctrl_name	= "internal",
};

static struct gpio_led gpio_leds[] = {
	{
		.name			= "beagleboard::usr0",
		.default_trigger	= "heartbeat",
		.gpio			= 150,
	},
	{
		.name			= "beagleboard::usr1",
		.default_trigger	= "mmc0",
		.gpio			= 149,
	},
	{
		.name			= "beagleboard::pmu_stat",
		.gpio			= -EINVAL,	/* gets replaced */
		.active_low		= true,
	},
};

static struct gpio_led_platform_data gpio_led_info = {
	.leds		= gpio_leds,
	.num_leds	= ARRAY_SIZE(gpio_leds),
};

static struct platform_device leds_gpio = {
	.name	= "leds-gpio",
	.id	= -1,
	.dev	= {
		.platform_data	= &gpio_led_info,
	},
};

static struct gpio_keys_button gpio_buttons[] = {
	{
		.code			= BTN_EXTRA,
		.gpio			= 7,
		.desc			= "user",
		.wakeup			= 1,
	},
};

static struct gpio_keys_platform_data gpio_key_info = {
	.buttons	= gpio_buttons,
	.nbuttons	= ARRAY_SIZE(gpio_buttons),
};

static struct platform_device keys_gpio = {
	.name	= "gpio-keys",
	.id	= -1,
	.dev	= {
		.platform_data	= &gpio_key_info,
	},
};

static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
	{ OMAP_TAG_UART,	&omap3_beagle_uart_config },
	{ OMAP_TAG_LCD,		&omap3_beagle_lcd_config },
};

static struct platform_device *omap3_beagle_devices[] __initdata = {
	&omap3_beagle_lcd_device,
	&leds_gpio,
	&keys_gpio,
};

static void __init omap3beagle_flash_init(void)
{
	u8 cs = 0;
	u8 nandcs = GPMC_CS_NUM + 1;

	u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;

	/* find out the chip-select on which NAND exists */
	while (cs < GPMC_CS_NUM) {
		u32 ret = 0;
		ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);

		if ((ret & 0xC00) == 0x800) {
			printk(KERN_INFO "Found NAND on CS%d\n", cs);
			if (nandcs > GPMC_CS_NUM)
				nandcs = cs;
		}
		cs++;
	}

	if (nandcs > GPMC_CS_NUM) {
		printk(KERN_INFO "NAND: Unable to find configuration "
				 "in GPMC\n ");
		return;
	}

	if (nandcs < GPMC_CS_NUM) {
		omap3beagle_nand_data.cs = nandcs;
		omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
			(gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
		omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);

		printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
		if (platform_device_register(&omap3beagle_nand_device) < 0)
			printk(KERN_ERR "Unable to register NAND device\n");
	}
}

static void __init omap3_beagle_init(void)
{
	omap3_beagle_i2c_init();
	platform_add_devices(omap3_beagle_devices,
			ARRAY_SIZE(omap3_beagle_devices));
	omap_board_config = omap3_beagle_config;
	omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
	omap_serial_init();

	omap_cfg_reg(J25_34XX_GPIO170);
	gpio_request(170, "DVI_nPD");
	/* REVISIT leave DVI powered down until it's needed ... */
	gpio_direction_output(170, true);

	omap3beagle_flash_init();
}

static void __init omap3_beagle_map_io(void)
{
	omap2_set_globals_343x();
	omap2_map_common_io();
}

MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
	/* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
	.phys_io	= 0x48000000,
	.io_pg_offst	= ((0xd8000000) >> 18) & 0xfffc,
	.boot_params	= 0x80000100,
	.map_io		= omap3_beagle_map_io,
	.init_irq	= omap3_beagle_init_irq,
	.init_machine	= omap3_beagle_init,
	.timer		= &omap_timer,
MACHINE_END
Commit	Line	Data
2885f000 SMK	1	/*
	2	* linux/arch/arm/mach-omap2/board-omap3beagle.c
	3	*
	4	* Copyright (C) 2008 Texas Instruments
	5	*
	6	* Modified from mach-omap2/board-3430sdp.c
	7	*
	8	* Initial code: Syed Mohammed Khasim
	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License version 2 as
	12	* published by the Free Software Foundation.
	13	*/
	14
	15	#include <linux/kernel.h>
	16	#include <linux/init.h>
	17	#include <linux/platform_device.h>
	18	#include <linux/delay.h>
	19	#include <linux/err.h>
	20	#include <linux/clk.h>
	21	#include <linux/io.h>
	22	#include <linux/leds.h>
	23	#include <linux/gpio.h>
	24	#include <linux/input.h>
	25	#include <linux/gpio_keys.h>
	26
	27	#include <linux/mtd/mtd.h>
	28	#include <linux/mtd/partitions.h>
	29	#include <linux/mtd/nand.h>
	30
145d9c94 TL	31	#include <linux/i2c/twl4030.h>
145d9c94 TL	32
2885f000 SMK	33	#include <mach/hardware.h>
	34	#include <asm/mach-types.h>
	35	#include <asm/mach/arch.h>
	36	#include <asm/mach/map.h>
	37	#include <asm/mach/flash.h>
	38
	39	#include <mach/board.h>
	40	#include <mach/common.h>
	41	#include <mach/gpmc.h>
	42	#include <mach/nand.h>
90c62bf0	43	#include <mach/mux.h>
2885f000	44
90c62bf0	45	#include "mmc-twl4030.h"
2885f000 SMK	46
	47	#define GPMC_CS0_BASE 0x60
	48	#define GPMC_CS_SIZE 0x30
	49
	50	#define NAND_BLOCK_SIZE SZ_128K
	51
	52	static struct mtd_partition omap3beagle_nand_partitions[] = {
	53	/* All the partition sizes are listed in terms of NAND block size */
	54	{
	55	.name = "X-Loader",
	56	.offset = 0,
	57	.size = 4 * NAND_BLOCK_SIZE,
	58	.mask_flags = MTD_WRITEABLE, /* force read-only */
	59	},
	60	{
	61	.name = "U-Boot",
	62	.offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
	63	.size = 15 * NAND_BLOCK_SIZE,
	64	.mask_flags = MTD_WRITEABLE, /* force read-only */
	65	},
	66	{
	67	.name = "U-Boot Env",
	68	.offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
	69	.size = 1 * NAND_BLOCK_SIZE,
	70	},
	71	{
	72	.name = "Kernel",
	73	.offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
	74	.size = 32 * NAND_BLOCK_SIZE,
	75	},
	76	{
	77	.name = "File System",
	78	.offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
	79	.size = MTDPART_SIZ_FULL,
	80	},
	81	};
	82
	83	static struct omap_nand_platform_data omap3beagle_nand_data = {
	84	.options = NAND_BUSWIDTH_16,
	85	.parts = omap3beagle_nand_partitions,
	86	.nr_parts = ARRAY_SIZE(omap3beagle_nand_partitions),
	87	.dma_channel = -1, /* disable DMA in OMAP NAND driver */
	88	.nand_setup = NULL,
	89	.dev_ready = NULL,
	90	};
	91
	92	static struct resource omap3beagle_nand_resource = {
	93	.flags = IORESOURCE_MEM,
	94	};
	95
	96	static struct platform_device omap3beagle_nand_device = {
	97	.name = "omap2-nand",
	98	.id = -1,
	99	.dev = {
	100	.platform_data = &omap3beagle_nand_data,
	101	},
	102	.num_resources = 1,
	103	.resource = &omap3beagle_nand_resource,
	104	};
	105
	106	static struct omap_uart_config omap3_beagle_uart_config __initdata = {
	107	.enabled_uarts = ((1 << 0) \| (1 << 1) \| (1 << 2)),
	108	};
	109
90c62bf0 TL	110	static struct twl4030_hsmmc_info mmc[] = {
	111	{
	112	.mmc = 1,
	113	.wires = 8,
	114	.gpio_wp = 29,
	115	},
	116	{} /* Terminator */
	117	};
	118
	119	static struct gpio_led gpio_leds[];
	120
	121	static int beagle_twl_gpio_setup(struct device *dev,
	122	unsigned gpio, unsigned ngpio)
	123	{
	124	/* gpio + 0 is "mmc0_cd" (input/IRQ) */
145d9c94 TL	125	omap_cfg_reg(AH8_34XX_GPIO29);
	126	mmc[0].gpio_cd = gpio + 0;
	127	twl4030_mmc_init(mmc);
90c62bf0 TL	128
	129	/* REVISIT: need ehci-omap hooks for external VBUS
	130	* power switch and overcurrent detect
	131	*/
	132
	133	gpio_request(gpio + 1, "EHCI_nOC");
	134	gpio_direction_input(gpio + 1);
	135
	136	/* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
	137	gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
	138	gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1);
	139
	140	/* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
	141	gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
	142
	143	return 0;
	144	}
	145
	146	static struct twl4030_gpio_platform_data beagle_gpio_data = {
	147	.gpio_base = OMAP_MAX_GPIO_LINES,
	148	.irq_base = TWL4030_GPIO_IRQ_BASE,
	149	.irq_end = TWL4030_GPIO_IRQ_END,
	150	.use_leds = true,
	151	.pullups = BIT(1),
	152	.pulldowns = BIT(2) \| BIT(6) \| BIT(7) \| BIT(8) \| BIT(13)
	153	\| BIT(15) \| BIT(16) \| BIT(17),
	154	.setup = beagle_twl_gpio_setup,
	155	};
	156
	157	static struct twl4030_platform_data beagle_twldata = {
	158	.irq_base = TWL4030_IRQ_BASE,
	159	.irq_end = TWL4030_IRQ_END,
	160
	161	/* platform_data for children goes here */
	162	.gpio = &beagle_gpio_data,
	163	};
	164
	165	static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
	166	{
	167	I2C_BOARD_INFO("twl4030", 0x48),
	168	.flags = I2C_CLIENT_WAKE,
	169	.irq = INT_34XX_SYS_NIRQ,
	170	.platform_data = &beagle_twldata,
	171	},
	172	};
	173
	174	static int __init omap3_beagle_i2c_init(void)
	175	{
	176	omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
	177	ARRAY_SIZE(beagle_i2c_boardinfo));
	178	#ifdef CONFIG_I2C2_OMAP_BEAGLE
	179	omap_register_i2c_bus(2, 400, NULL, 0);
	180	#endif
	181	omap_register_i2c_bus(3, 400, NULL, 0);
	182	return 0;
	183	}
	184
2885f000 SMK	185	static void __init omap3_beagle_init_irq(void)
	186	{
	187	omap2_init_common_hw();
	188	omap_init_irq();
	189	omap_gpio_init();
	190	}
	191
	192	static struct platform_device omap3_beagle_lcd_device = {
	193	.name = "omap3beagle_lcd",
	194	.id = -1,
	195	};
	196
	197	static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
	198	.ctrl_name = "internal",
	199	};
	200
	201	static struct gpio_led gpio_leds[] = {
	202	{
	203	.name = "beagleboard::usr0",
	204	.default_trigger = "heartbeat",
	205	.gpio = 150,
	206	},
	207	{
	208	.name = "beagleboard::usr1",
	209	.default_trigger = "mmc0",
	210	.gpio = 149,
	211	},
90c62bf0 TL	212	{
	213	.name = "beagleboard::pmu_stat",
	214	.gpio = -EINVAL, /* gets replaced */
	215	.active_low = true,
	216	},
2885f000 SMK	217	};
	218
	219	static struct gpio_led_platform_data gpio_led_info = {
	220	.leds = gpio_leds,
	221	.num_leds = ARRAY_SIZE(gpio_leds),
	222	};
	223
	224	static struct platform_device leds_gpio = {
	225	.name = "leds-gpio",
	226	.id = -1,
	227	.dev = {
	228	.platform_data = &gpio_led_info,
	229	},
	230	};
	231
	232	static struct gpio_keys_button gpio_buttons[] = {
	233	{
	234	.code = BTN_EXTRA,
	235	.gpio = 7,
	236	.desc = "user",
	237	.wakeup = 1,
	238	},
	239	};
	240
	241	static struct gpio_keys_platform_data gpio_key_info = {
	242	.buttons = gpio_buttons,
	243	.nbuttons = ARRAY_SIZE(gpio_buttons),
	244	};
	245
	246	static struct platform_device keys_gpio = {
	247	.name = "gpio-keys",
	248	.id = -1,
	249	.dev = {
	250	.platform_data = &gpio_key_info,
	251	},
	252	};
	253
	254	static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
	255	{ OMAP_TAG_UART, &omap3_beagle_uart_config },
	256	{ OMAP_TAG_LCD, &omap3_beagle_lcd_config },
	257	};
	258
	259	static struct platform_device *omap3_beagle_devices[] __initdata = {
	260	&omap3_beagle_lcd_device,
	261	&leds_gpio,
	262	&keys_gpio,
	263	};
	264
	265	static void __init omap3beagle_flash_init(void)
	266	{
	267	u8 cs = 0;
	268	u8 nandcs = GPMC_CS_NUM + 1;
	269
	270	u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
	271
	272	/* find out the chip-select on which NAND exists */
	273	while (cs < GPMC_CS_NUM) {
	274	u32 ret = 0;
	275	ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
	276
	277	if ((ret & 0xC00) == 0x800) {
	278	printk(KERN_INFO "Found NAND on CS%d\n", cs);
	279	if (nandcs > GPMC_CS_NUM)
	280	nandcs = cs;
281	}
282	cs++;
283	}
284
285	if (nandcs > GPMC_CS_NUM) {
286	printk(KERN_INFO "NAND: Unable to find configuration "
287	"in GPMC\n ");
288	return;
289	}
290
291	if (nandcs < GPMC_CS_NUM) {
292	omap3beagle_nand_data.cs = nandcs;
293	omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
294	(gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
295	omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
296
297	printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
298	if (platform_device_register(&omap3beagle_nand_device) < 0)
299	printk(KERN_ERR "Unable to register NAND device\n");
300	}
301	}
302
303	static void __init omap3_beagle_init(void)
304	{
90c62bf0	305	omap3_beagle_i2c_init();
2885f000 SMK	306	platform_add_devices(omap3_beagle_devices,
	307	ARRAY_SIZE(omap3_beagle_devices));
	308	omap_board_config = omap3_beagle_config;
	309	omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
	310	omap_serial_init();
90c62bf0	311
90c62bf0 TL	312	omap_cfg_reg(J25_34XX_GPIO170);
	313	gpio_request(170, "DVI_nPD");
	314	/* REVISIT leave DVI powered down until it's needed ... */
	315	gpio_direction_output(170, true);
	316
2885f000 SMK	317	omap3beagle_flash_init();
	318	}
	319
	320	static void __init omap3_beagle_map_io(void)
	321	{
	322	omap2_set_globals_343x();
	323	omap2_map_common_io();
	324	}
	325
	326	MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
	327	/* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
	328	.phys_io = 0x48000000,
	329	.io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
	330	.boot_params = 0x80000100,
	331	.map_io = omap3_beagle_map_io,
	332	.init_irq = omap3_beagle_init_irq,
	333	.init_machine = omap3_beagle_init,
	334	.timer = &omap_timer,
	335	MACHINE_END