[deliverable/linux.git] / arch / arm / mach-clps711x / p720t.c

/*
 *  linux/arch/arm/mach-clps711x/p720t.c
 *
 *  Copyright (C) 2000-2001 Deep Blue Solutions Ltd
 *
 * 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.
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/leds.h>
#include <linux/platform_device.h>

#include <mach/hardware.h>
#include <asm/pgtable.h>
#include <asm/page.h>
#include <asm/setup.h>
#include <asm/sizes.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <mach/syspld.h>

#include <video/platform_lcd.h>

#include "common.h"

#define GPIO_USERLED	CLPS711X_GPIO(3, 0)

static void p720t_lcd_power_set(struct plat_lcd_data *pd, unsigned int power)
{
	if (power) {
		PLD_LCDEN = PLD_LCDEN_EN;
		PLD_PWR |= PLD_S4_ON | PLD_S2_ON | PLD_S1_ON;
	} else {
		PLD_PWR &= ~(PLD_S4_ON | PLD_S2_ON | PLD_S1_ON);
		PLD_LCDEN = 0;
	}
}

static struct plat_lcd_data p720t_lcd_power_pdata = {
	.set_power	= p720t_lcd_power_set,
};

/*
 * Map the P720T system PLD. It occupies two address spaces:
 * 0x10000000 and 0x10400000. We map both regions as one.
 */
static struct map_desc p720t_io_desc[] __initdata = {
	{
		.virtual	= SYSPLD_VIRT_BASE,
		.pfn		= __phys_to_pfn(SYSPLD_PHYS_BASE),
		.length		= SZ_8M,
		.type		= MT_DEVICE,
	},
};

static void __init
fixup_p720t(struct tag *tag, char **cmdline, struct meminfo *mi)
{
	/*
	 * Our bootloader doesn't setup any tags (yet).
	 */
	if (tag->hdr.tag != ATAG_CORE) {
		tag->hdr.tag = ATAG_CORE;
		tag->hdr.size = tag_size(tag_core);
		tag->u.core.flags = 0;
		tag->u.core.pagesize = PAGE_SIZE;
		tag->u.core.rootdev = 0x0100;

		tag = tag_next(tag);
		tag->hdr.tag = ATAG_MEM;
		tag->hdr.size = tag_size(tag_mem32);
		tag->u.mem.size = 4096;
		tag->u.mem.start = PHYS_OFFSET;

		tag = tag_next(tag);
		tag->hdr.tag = ATAG_NONE;
		tag->hdr.size = 0;
	}
}

static void __init p720t_map_io(void)
{
	clps711x_map_io();
	iotable_init(p720t_io_desc, ARRAY_SIZE(p720t_io_desc));
}

static void __init p720t_init_early(void)
{
	/*
	 * Power down as much as possible in case we don't
	 * have the drivers loaded.
	 */
	PLD_LCDEN = 0;
	PLD_PWR  &= ~(PLD_S4_ON|PLD_S3_ON|PLD_S2_ON|PLD_S1_ON);

	PLD_KBD   = 0;
	PLD_IO    = 0;
	PLD_IRDA  = 0;
	PLD_CODEC = 0;
	PLD_TCH   = 0;
	PLD_SPI   = 0;
	if (!IS_ENABLED(CONFIG_DEBUG_LL)) {
		PLD_COM2 = 0;
		PLD_COM1 = 0;
	}
}

static struct gpio_led p720t_gpio_leds[] = {
	{
		.name			= "User LED",
		.default_trigger	= "heartbeat",
		.gpio			= GPIO_USERLED,
	},
};

static struct gpio_led_platform_data p720t_gpio_led_pdata __initdata = {
	.leds		= p720t_gpio_leds,
	.num_leds	= ARRAY_SIZE(p720t_gpio_leds),
};

static void __init p720t_init(void)
{
	platform_device_register_data(&platform_bus, "platform-lcd", 0,
				      &p720t_lcd_power_pdata,
				      sizeof(p720t_lcd_power_pdata));
	platform_device_register_simple("video-clps711x", 0, NULL, 0);
}

static void __init p720t_init_late(void)
{
	platform_device_register_data(&platform_bus, "leds-gpio", 0,
				      &p720t_gpio_led_pdata,
				      sizeof(p720t_gpio_led_pdata));
}

MACHINE_START(P720T, "ARM-Prospector720T")
	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
	.atag_offset	= 0x100,
	.nr_irqs	= CLPS711X_NR_IRQS,
	.fixup		= fixup_p720t,
	.map_io		= p720t_map_io,
	.init_early	= p720t_init_early,
	.init_irq	= clps711x_init_irq,
	.timer		= &clps711x_timer,
	.init_machine	= p720t_init,
	.init_late	= p720t_init_late,
	.handle_irq	= clps711x_handle_irq,
	.restart	= clps711x_restart,
MACHINE_END
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/arch/arm/mach-clps711x/p720t.c
	3	*
	4	* Copyright (C) 2000-2001 Deep Blue Solutions Ltd
	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	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	19	*/
1da177e4 LT	20	#include <linux/kernel.h>
	21	#include <linux/init.h>
	22	#include <linux/types.h>
	23	#include <linux/string.h>
	24	#include <linux/mm.h>
fced80c7	25	#include <linux/io.h>
8ee8ef29 BW	26	#include <linux/slab.h>
8ee8ef29 BW	27	#include <linux/leds.h>
b3a076dd	28	#include <linux/platform_device.h>
1da177e4	29
a09e64fb	30	#include <mach/hardware.h>
1da177e4 LT	31	#include <asm/pgtable.h>
	32	#include <asm/page.h>
	33	#include <asm/setup.h>
f10083f5	34	#include <asm/sizes.h>
1da177e4 LT	35	#include <asm/mach-types.h>
	36	#include <asm/mach/arch.h>
	37	#include <asm/mach/map.h>
a09e64fb	38	#include <mach/syspld.h>
1da177e4	39
87c37b51 AS	40	#include <video/platform_lcd.h>
87c37b51 AS	41
1da177e4 LT	42	#include "common.h"
1da177e4 LT	43
b3a076dd AS	44	#define GPIO_USERLED CLPS711X_GPIO(3, 0)
b3a076dd AS	45
87c37b51 AS	46	static void p720t_lcd_power_set(struct plat_lcd_data *pd, unsigned int power)
	47	{
	48	if (power) {
	49	PLD_LCDEN = PLD_LCDEN_EN;
	50	PLD_PWR \|= PLD_S4_ON \| PLD_S2_ON \| PLD_S1_ON;
	51	} else {
	52	PLD_PWR &= ~(PLD_S4_ON \| PLD_S2_ON \| PLD_S1_ON);
	53	PLD_LCDEN = 0;
	54	}
	55	}
	56
	57	static struct plat_lcd_data p720t_lcd_power_pdata = {
	58	.set_power = p720t_lcd_power_set,
	59	};
	60
1da177e4	61	/*
6cb1b145 AS	62	* Map the P720T system PLD. It occupies two address spaces:
6cb1b145 AS	63	* 0x10000000 and 0x10400000. We map both regions as one.
1da177e4 LT	64	*/
1da177e4 LT	65	static struct map_desc p720t_io_desc[] __initdata = {
f10083f5 DS	66	{
	67	.virtual = SYSPLD_VIRT_BASE,
	68	.pfn = __phys_to_pfn(SYSPLD_PHYS_BASE),
6cb1b145 AS	69	.length = SZ_8M,
	70	.type = MT_DEVICE,
	71	},
1da177e4 LT	72	};
	73
	74	static void __init
0744a3ee	75	fixup_p720t(struct tag tag, char cmdline, struct meminfo mi)
1da177e4 LT	76	{
	77	/*
	78	* Our bootloader doesn't setup any tags (yet).
	79	*/
	80	if (tag->hdr.tag != ATAG_CORE) {
	81	tag->hdr.tag = ATAG_CORE;
	82	tag->hdr.size = tag_size(tag_core);
	83	tag->u.core.flags = 0;
	84	tag->u.core.pagesize = PAGE_SIZE;
	85	tag->u.core.rootdev = 0x0100;
	86
	87	tag = tag_next(tag);
	88	tag->hdr.tag = ATAG_MEM;
	89	tag->hdr.size = tag_size(tag_mem32);
	90	tag->u.mem.size = 4096;
	91	tag->u.mem.start = PHYS_OFFSET;
	92
	93	tag = tag_next(tag);
	94	tag->hdr.tag = ATAG_NONE;
	95	tag->hdr.size = 0;
	96	}
	97	}
	98
	99	static void __init p720t_map_io(void)
	100	{
	101	clps711x_map_io();
	102	iotable_init(p720t_io_desc, ARRAY_SIZE(p720t_io_desc));
	103	}
	104
02d7d6d2	105	static void __init p720t_init_early(void)
1da177e4 LT	106	{
	107	/*
	108	* Power down as much as possible in case we don't
	109	* have the drivers loaded.
	110	*/
	111	PLD_LCDEN = 0;
	112	PLD_PWR &= ~(PLD_S4_ON\|PLD_S3_ON\|PLD_S2_ON\|PLD_S1_ON);
	113
	114	PLD_KBD = 0;
	115	PLD_IO = 0;
	116	PLD_IRDA = 0;
	117	PLD_CODEC = 0;
	118	PLD_TCH = 0;
	119	PLD_SPI = 0;
02d7d6d2 AS	120	if (!IS_ENABLED(CONFIG_DEBUG_LL)) {
	121	PLD_COM2 = 0;
	122	PLD_COM1 = 0;
	123	}
1da177e4 LT	124	}
1da177e4 LT	125
b3a076dd AS	126	static struct gpio_led p720t_gpio_leds[] = {
	127	{
	128	.name = "User LED",
	129	.default_trigger = "heartbeat",
	130	.gpio = GPIO_USERLED,
	131	},
	132	};
8ee8ef29	133
b3a076dd AS	134	static struct gpio_led_platform_data p720t_gpio_led_pdata __initdata = {
	135	.leds = p720t_gpio_leds,
	136	.num_leds = ARRAY_SIZE(p720t_gpio_leds),
	137	};
8ee8ef29	138
dd850f12 AS	139	static void __init p720t_init(void)
dd850f12 AS	140	{
87c37b51 AS	141	platform_device_register_data(&platform_bus, "platform-lcd", 0,
	142	&p720t_lcd_power_pdata,
	143	sizeof(p720t_lcd_power_pdata));
dd850f12 AS	144	platform_device_register_simple("video-clps711x", 0, NULL, 0);
	145	}
	146
b3a076dd	147	static void __init p720t_init_late(void)
8ee8ef29	148	{
b3a076dd AS	149	platform_device_register_data(&platform_bus, "leds-gpio", 0,
	150	&p720t_gpio_led_pdata,
	151	sizeof(p720t_gpio_led_pdata));
8ee8ef29 BW	152	}
8ee8ef29 BW	153
02d7d6d2 AS	154	MACHINE_START(P720T, "ARM-Prospector720T")
	155	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
	156	.atag_offset = 0x100,
0d8be81c	157	.nr_irqs = CLPS711X_NR_IRQS,
02d7d6d2	158	.fixup = fixup_p720t,
02d7d6d2	159	.map_io = p720t_map_io,
b3a076dd	160	.init_early = p720t_init_early,
02d7d6d2 AS	161	.init_irq = clps711x_init_irq,
02d7d6d2 AS	162	.timer = &clps711x_timer,
dd850f12	163	.init_machine = p720t_init,
b3a076dd	164	.init_late = p720t_init_late,
99f04c8f	165	.handle_irq = clps711x_handle_irq,
02d7d6d2 AS	166	.restart = clps711x_restart,
02d7d6d2 AS	167	MACHINE_END