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

/*
 * board-overo.c (Gumstix Overo)
 *
 * Initial code: Steve Sakoman <steve@sakoman.com>
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */

#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>

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

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

#include <mach/board-overo.h>
#include <mach/board.h>
#include <mach/common.h>
#include <mach/gpio.h>
#include <mach/gpmc.h>
#include <mach/hardware.h>
#include <mach/nand.h>

#define NAND_BLOCK_SIZE SZ_128K
#define GPMC_CS0_BASE  0x60
#define GPMC_CS_SIZE   0x30

static struct mtd_partition overo_nand_partitions[] = {
	{
		.name           = "xloader",
		.offset         = 0,			/* Offset = 0x00000 */
		.size           = 4 * NAND_BLOCK_SIZE,
		.mask_flags     = MTD_WRITEABLE
	},
	{
		.name           = "uboot",
		.offset         = MTDPART_OFS_APPEND,	/* Offset = 0x80000 */
		.size           = 14 * NAND_BLOCK_SIZE,
	},
	{
		.name           = "uboot environment",
		.offset         = MTDPART_OFS_APPEND,	/* Offset = 0x240000 */
		.size           = 2 * NAND_BLOCK_SIZE,
	},
	{
		.name           = "linux",
		.offset         = MTDPART_OFS_APPEND,	/* Offset = 0x280000 */
		.size           = 32 * NAND_BLOCK_SIZE,
	},
	{
		.name           = "rootfs",
		.offset         = MTDPART_OFS_APPEND,	/* Offset = 0x680000 */
		.size           = MTDPART_SIZ_FULL,
	},
};

static struct omap_nand_platform_data overo_nand_data = {
	.parts = overo_nand_partitions,
	.nr_parts = ARRAY_SIZE(overo_nand_partitions),
	.dma_channel = -1,	/* disable DMA in OMAP NAND driver */
};

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

static struct platform_device overo_nand_device = {
	.name		= "omap2-nand",
	.id		= -1,
	.dev		= {
		.platform_data	= &overo_nand_data,
	},
	.num_resources	= 1,
	.resource	= &overo_nand_resource,
};


static void __init overo_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) {
		overo_nand_data.cs = nandcs;
		overo_nand_data.gpmc_cs_baseaddr = (void *)
			(gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
		overo_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);

		printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
		if (platform_device_register(&overo_nand_device) < 0)
			printk(KERN_ERR "Unable to register NAND device\n");
	}
}
static struct omap_uart_config overo_uart_config __initdata = {
	.enabled_uarts	= ((1 << 0) | (1 << 1) | (1 << 2)),
};

static int __init overo_i2c_init(void)
{
	/* i2c2 pins are used for gpio */
	omap_register_i2c_bus(3, 400, NULL, 0);
	return 0;
}

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

static struct platform_device overo_lcd_device = {
	.name		= "overo_lcd",
	.id		= -1,
};

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

static struct omap_board_config_kernel overo_config[] __initdata = {
	{ OMAP_TAG_UART,	&overo_uart_config },
	{ OMAP_TAG_LCD,		&overo_lcd_config },
};

static struct platform_device *overo_devices[] __initdata = {
	&overo_lcd_device,
};

static void __init overo_init(void)
{
	overo_i2c_init();
	platform_add_devices(overo_devices, ARRAY_SIZE(overo_devices));
	omap_board_config = overo_config;
	omap_board_config_size = ARRAY_SIZE(overo_config);
	omap_serial_init();
	overo_flash_init();

	if ((gpio_request(OVERO_GPIO_W2W_NRESET,
			  "OVERO_GPIO_W2W_NRESET") == 0) &&
	    (gpio_direction_output(OVERO_GPIO_W2W_NRESET, 1) == 0)) {
		gpio_export(OVERO_GPIO_W2W_NRESET, 0);
		gpio_set_value(OVERO_GPIO_W2W_NRESET, 0);
		udelay(10);
		gpio_set_value(OVERO_GPIO_W2W_NRESET, 1);
	} else {
		printk(KERN_ERR "could not obtain gpio for "
					"OVERO_GPIO_W2W_NRESET\n");
	}

	if ((gpio_request(OVERO_GPIO_BT_XGATE, "OVERO_GPIO_BT_XGATE") == 0) &&
	    (gpio_direction_output(OVERO_GPIO_BT_XGATE, 0) == 0))
		gpio_export(OVERO_GPIO_BT_XGATE, 0);
	else
		printk(KERN_ERR "could not obtain gpio for OVERO_GPIO_BT_XGATE\n");

	if ((gpio_request(OVERO_GPIO_BT_NRESET, "OVERO_GPIO_BT_NRESET") == 0) &&
	    (gpio_direction_output(OVERO_GPIO_BT_NRESET, 1) == 0)) {
		gpio_export(OVERO_GPIO_BT_NRESET, 0);
		gpio_set_value(OVERO_GPIO_BT_NRESET, 0);
		mdelay(6);
		gpio_set_value(OVERO_GPIO_BT_NRESET, 1);
	} else {
		printk(KERN_ERR "could not obtain gpio for "
					"OVERO_GPIO_BT_NRESET\n");
	}

	if ((gpio_request(OVERO_GPIO_USBH_CPEN, "OVERO_GPIO_USBH_CPEN") == 0) &&
	    (gpio_direction_output(OVERO_GPIO_USBH_CPEN, 1) == 0))
		gpio_export(OVERO_GPIO_USBH_CPEN, 0);
	else
		printk(KERN_ERR "could not obtain gpio for "
					"OVERO_GPIO_USBH_CPEN\n");

	if ((gpio_request(OVERO_GPIO_USBH_NRESET,
			  "OVERO_GPIO_USBH_NRESET") == 0) &&
	    (gpio_direction_output(OVERO_GPIO_USBH_NRESET, 1) == 0))
		gpio_export(OVERO_GPIO_USBH_NRESET, 0);
	else
		printk(KERN_ERR "could not obtain gpio for "
					"OVERO_GPIO_USBH_NRESET\n");
}

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

MACHINE_START(OVERO, "Gumstix Overo")
	.phys_io	= 0x48000000,
	.io_pg_offst	= ((0xd8000000) >> 18) & 0xfffc,
	.boot_params	= 0x80000100,
	.map_io		= overo_map_io,
	.init_irq	= overo_init_irq,
	.init_machine	= overo_init,
	.timer		= &omap_timer,
MACHINE_END
Commit	Line	Data
eba2645a SS	1	/*
	2	* board-overo.c (Gumstix Overo)
	3	*
	4	* Initial code: Steve Sakoman <steve@sakoman.com>
	5	*
	6	* This program is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU General Public License
	8	* version 2 as published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope that it will be useful, but
	11	* WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	* General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
	18	* 02110-1301 USA
	19	*
	20	*/
	21
	22	#include <linux/clk.h>
	23	#include <linux/delay.h>
	24	#include <linux/err.h>
	25	#include <linux/init.h>
	26	#include <linux/io.h>
	27	#include <linux/kernel.h>
	28	#include <linux/platform_device.h>
	29
	30	#include <linux/mtd/mtd.h>
	31	#include <linux/mtd/nand.h>
	32	#include <linux/mtd/partitions.h>
	33
	34	#include <asm/mach-types.h>
	35	#include <asm/mach/arch.h>
	36	#include <asm/mach/flash.h>
	37	#include <asm/mach/map.h>
	38
	39	#include <mach/board-overo.h>
	40	#include <mach/board.h>
	41	#include <mach/common.h>
	42	#include <mach/gpio.h>
	43	#include <mach/gpmc.h>
	44	#include <mach/hardware.h>
	45	#include <mach/nand.h>
	46
	47	#define NAND_BLOCK_SIZE SZ_128K
	48	#define GPMC_CS0_BASE 0x60
	49	#define GPMC_CS_SIZE 0x30
	50
	51	static struct mtd_partition overo_nand_partitions[] = {
	52	{
	53	.name = "xloader",
	54	.offset = 0, /* Offset = 0x00000 */
	55	.size = 4 * NAND_BLOCK_SIZE,
	56	.mask_flags = MTD_WRITEABLE
	57	},
	58	{
	59	.name = "uboot",
	60	.offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
	61	.size = 14 * NAND_BLOCK_SIZE,
	62	},
	63	{
	64	.name = "uboot environment",
65	.offset = MTDPART_OFS_APPEND, /* Offset = 0x240000 */
66	.size = 2 * NAND_BLOCK_SIZE,
67	},
68	{
69	.name = "linux",
70	.offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
71	.size = 32 * NAND_BLOCK_SIZE,
72	},
73	{
74	.name = "rootfs",
75	.offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
76	.size = MTDPART_SIZ_FULL,
77	},
78	};
79
80	static struct omap_nand_platform_data overo_nand_data = {
81	.parts = overo_nand_partitions,
82	.nr_parts = ARRAY_SIZE(overo_nand_partitions),
83	.dma_channel = -1, /* disable DMA in OMAP NAND driver */
84	};
85
86	static struct resource overo_nand_resource = {
87	.flags = IORESOURCE_MEM,
88	};
89
90	static struct platform_device overo_nand_device = {
91	.name = "omap2-nand",
92	.id = -1,
93	.dev = {
94	.platform_data = &overo_nand_data,
95	},
96	.num_resources = 1,
97	.resource = &overo_nand_resource,
98	};
99
100
101	static void __init overo_flash_init(void)
102	{
103	u8 cs = 0;
104	u8 nandcs = GPMC_CS_NUM + 1;
105
106	u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
107
108	/* find out the chip-select on which NAND exists */
109	while (cs < GPMC_CS_NUM) {
110	u32 ret = 0;
111	ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
112
113	if ((ret & 0xC00) == 0x800) {
114	printk(KERN_INFO "Found NAND on CS%d\n", cs);
115	if (nandcs > GPMC_CS_NUM)
116	nandcs = cs;
117	}
118	cs++;
119	}
120
121	if (nandcs > GPMC_CS_NUM) {
122	printk(KERN_INFO "NAND: Unable to find configuration "
123	"in GPMC\n ");
124	return;
125	}
126
127	if (nandcs < GPMC_CS_NUM) {
128	overo_nand_data.cs = nandcs;
129	overo_nand_data.gpmc_cs_baseaddr = (void *)
130	(gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
131	overo_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
132
133	printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
134	if (platform_device_register(&overo_nand_device) < 0)
135	printk(KERN_ERR "Unable to register NAND device\n");
136	}
137	}
138	static struct omap_uart_config overo_uart_config __initdata = {
139	.enabled_uarts = ((1 << 0) \| (1 << 1) \| (1 << 2)),
140	};
141
142	static int __init overo_i2c_init(void)
143	{
144	/* i2c2 pins are used for gpio */
145	omap_register_i2c_bus(3, 400, NULL, 0);
146	return 0;
147	}
148
149	static void __init overo_init_irq(void)
150	{
151	omap2_init_common_hw();
152	omap_init_irq();
153	omap_gpio_init();
154	}
155
156	static struct platform_device overo_lcd_device = {
157	.name = "overo_lcd",
158	.id = -1,
159	};
160
161	static struct omap_lcd_config overo_lcd_config __initdata = {
162	.ctrl_name = "internal",
163	};
164
165	static struct omap_board_config_kernel overo_config[] __initdata = {
166	{ OMAP_TAG_UART, &overo_uart_config },
167	{ OMAP_TAG_LCD, &overo_lcd_config },
168	};
169
170	static struct platform_device *overo_devices[] __initdata = {
171	&overo_lcd_device,
172	};
173
174	static void __init overo_init(void)
175	{
176	overo_i2c_init();
177	platform_add_devices(overo_devices, ARRAY_SIZE(overo_devices));
178	omap_board_config = overo_config;
179	omap_board_config_size = ARRAY_SIZE(overo_config);
180	omap_serial_init();
181	overo_flash_init();
182
183	if ((gpio_request(OVERO_GPIO_W2W_NRESET,
184	"OVERO_GPIO_W2W_NRESET") == 0) &&
185	(gpio_direction_output(OVERO_GPIO_W2W_NRESET, 1) == 0)) {
186	gpio_export(OVERO_GPIO_W2W_NRESET, 0);
187	gpio_set_value(OVERO_GPIO_W2W_NRESET, 0);
188	udelay(10);
189	gpio_set_value(OVERO_GPIO_W2W_NRESET, 1);
190	} else {
191	printk(KERN_ERR "could not obtain gpio for "
192	"OVERO_GPIO_W2W_NRESET\n");
193	}
194
195	if ((gpio_request(OVERO_GPIO_BT_XGATE, "OVERO_GPIO_BT_XGATE") == 0) &&
196	(gpio_direction_output(OVERO_GPIO_BT_XGATE, 0) == 0))
197	gpio_export(OVERO_GPIO_BT_XGATE, 0);
198	else
199	printk(KERN_ERR "could not obtain gpio for OVERO_GPIO_BT_XGATE\n");
200
201	if ((gpio_request(OVERO_GPIO_BT_NRESET, "OVERO_GPIO_BT_NRESET") == 0) &&
202	(gpio_direction_output(OVERO_GPIO_BT_NRESET, 1) == 0)) {
203	gpio_export(OVERO_GPIO_BT_NRESET, 0);
204	gpio_set_value(OVERO_GPIO_BT_NRESET, 0);
205	mdelay(6);
206	gpio_set_value(OVERO_GPIO_BT_NRESET, 1);
207	} else {
208	printk(KERN_ERR "could not obtain gpio for "
209	"OVERO_GPIO_BT_NRESET\n");
210	}
211
212	if ((gpio_request(OVERO_GPIO_USBH_CPEN, "OVERO_GPIO_USBH_CPEN") == 0) &&
213	(gpio_direction_output(OVERO_GPIO_USBH_CPEN, 1) == 0))
214	gpio_export(OVERO_GPIO_USBH_CPEN, 0);
215	else
216	printk(KERN_ERR "could not obtain gpio for "
217	"OVERO_GPIO_USBH_CPEN\n");
218
219	if ((gpio_request(OVERO_GPIO_USBH_NRESET,
220	"OVERO_GPIO_USBH_NRESET") == 0) &&
221	(gpio_direction_output(OVERO_GPIO_USBH_NRESET, 1) == 0))
222	gpio_export(OVERO_GPIO_USBH_NRESET, 0);
223	else
224	printk(KERN_ERR "could not obtain gpio for "
225	"OVERO_GPIO_USBH_NRESET\n");
226	}
227
228	static void __init overo_map_io(void)
229	{
230	omap2_set_globals_343x();
231	omap2_map_common_io();
232	}
233
234	MACHINE_START(OVERO, "Gumstix Overo")
235	.phys_io = 0x48000000,
236	.io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
237	.boot_params = 0x80000100,
238	.map_io = overo_map_io,
239	.init_irq = overo_init_irq,
240	.init_machine = overo_init,
241	.timer = &omap_timer,
242	MACHINE_END