[mirror_ubuntu-artful-kernel.git] / arch / arm / mach-omap2 / board-omap3logic.c

/*
 * linux/arch/arm/mach-omap2/board-omap3logic.c
 *
 * Copyright (C) 2010 Li-Pro.Net
 * Stephan Linz <linz@li-pro.net>
 *
 * Copyright (C) 2010 Logic Product Development, Inc.
 * Peter Barada <peter.barada@logicpd.com>
 *
 * Modified from Beagle, EVM, and RX51
 *
 * 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/gpio.h>

#include <linux/regulator/machine.h>

#include <linux/i2c/twl.h>
#include <linux/mmc/host.h>

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

#include "mux.h"
#include "hsmmc.h"
#include "control.h"
#include "common-board-devices.h"

#include <plat/mux.h>
#include <plat/board.h>
#include <plat/common.h>
#include <plat/gpmc-smsc911x.h>
#include <plat/gpmc.h>
#include <plat/sdrc.h>

#define OMAP3LOGIC_SMSC911X_CS			1

#define OMAP3530_LV_SOM_MMC_GPIO_CD		110
#define OMAP3530_LV_SOM_MMC_GPIO_WP		126
#define OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ	152

#define OMAP3_TORPEDO_MMC_GPIO_CD		127
#define OMAP3_TORPEDO_SMSC911X_GPIO_IRQ		129

static struct regulator_consumer_supply omap3logic_vmmc1_supply = {
	.supply			= "vmmc",
};

/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
static struct regulator_init_data omap3logic_vmmc1 = {
	.constraints = {
		.name			= "VMMC1",
		.min_uV			= 1850000,
		.max_uV			= 3150000,
		.valid_modes_mask	= REGULATOR_MODE_NORMAL
					| REGULATOR_MODE_STANDBY,
		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
					| REGULATOR_CHANGE_MODE
					| REGULATOR_CHANGE_STATUS,
	},
	.num_consumer_supplies  = 1,
	.consumer_supplies      = &omap3logic_vmmc1_supply,
};

static struct twl4030_gpio_platform_data omap3logic_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),
};

static struct twl4030_platform_data omap3logic_twldata = {
	.irq_base	= TWL4030_IRQ_BASE,
	.irq_end	= TWL4030_IRQ_END,

	/* platform_data for children goes here */
	.gpio		= &omap3logic_gpio_data,
	.vmmc1		= &omap3logic_vmmc1,
};

static int __init omap3logic_i2c_init(void)
{
	omap3_pmic_init("twl4030", &omap3logic_twldata);
	return 0;
}

static struct omap2_hsmmc_info __initdata board_mmc_info[] = {
	{
		.name		= "external",
		.mmc		= 1,
		.caps		= MMC_CAP_4_BIT_DATA,
		.gpio_cd	= -EINVAL,
		.gpio_wp	= -EINVAL,
	},
	{}      /* Terminator */
};

static void __init board_mmc_init(void)
{
	if (machine_is_omap3530_lv_som()) {
		/* OMAP3530 LV SOM board */
		board_mmc_info[0].gpio_cd = OMAP3530_LV_SOM_MMC_GPIO_CD;
		board_mmc_info[0].gpio_wp = OMAP3530_LV_SOM_MMC_GPIO_WP;
		omap_mux_init_signal("gpio_110", OMAP_PIN_OUTPUT);
		omap_mux_init_signal("gpio_126", OMAP_PIN_OUTPUT);
	} else if (machine_is_omap3_torpedo()) {
		/* OMAP3 Torpedo board */
		board_mmc_info[0].gpio_cd = OMAP3_TORPEDO_MMC_GPIO_CD;
		omap_mux_init_signal("gpio_127", OMAP_PIN_OUTPUT);
	} else {
		/* unsupported board */
		printk(KERN_ERR "%s(): unknown machine type\n", __func__);
		return;
	}

	omap2_hsmmc_init(board_mmc_info);
	/* link regulators to MMC adapters */
	omap3logic_vmmc1_supply.dev = board_mmc_info[0].dev;
}

static struct omap_smsc911x_platform_data __initdata board_smsc911x_data = {
	.cs             = OMAP3LOGIC_SMSC911X_CS,
	.gpio_irq       = -EINVAL,
	.gpio_reset     = -EINVAL,
};

/* TODO/FIXME (comment by Peter Barada, LogicPD):
 * Fix the PBIAS voltage for Torpedo MMC1 pins that
 * are used for other needs (IRQs, etc).            */
static void omap3torpedo_fix_pbias_voltage(void)
{
	u16 control_pbias_offset = OMAP343X_CONTROL_PBIAS_LITE;
	u32 reg;

	if (machine_is_omap3_torpedo())
	{
		/* Set the bias for the pin */
		reg = omap_ctrl_readl(control_pbias_offset);

		reg &= ~OMAP343X_PBIASLITEPWRDNZ1;
		omap_ctrl_writel(reg, control_pbias_offset);

		/* 100ms delay required for PBIAS configuration */
		msleep(100);

		reg |= OMAP343X_PBIASLITEVMODE1;
		reg |= OMAP343X_PBIASLITEPWRDNZ1;
		omap_ctrl_writel(reg | 0x300, control_pbias_offset);
	}
}

static inline void __init board_smsc911x_init(void)
{
	if (machine_is_omap3530_lv_som()) {
		/* OMAP3530 LV SOM board */
		board_smsc911x_data.gpio_irq =
					OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ;
		omap_mux_init_signal("gpio_152", OMAP_PIN_INPUT);
	} else if (machine_is_omap3_torpedo()) {
		/* OMAP3 Torpedo board */
		board_smsc911x_data.gpio_irq = OMAP3_TORPEDO_SMSC911X_GPIO_IRQ;
		omap_mux_init_signal("gpio_129", OMAP_PIN_INPUT);
	} else {
		/* unsupported board */
		printk(KERN_ERR "%s(): unknown machine type\n", __func__);
		return;
	}

	gpmc_smsc911x_init(&board_smsc911x_data);
}

static void __init omap3logic_init_early(void)
{
	omap2_init_common_infrastructure();
	omap2_init_common_devices(NULL, NULL);
}

#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
	{ .reg_offset = OMAP_MUX_TERMINATOR },
};
#endif

static void __init omap3logic_init(void)
{
	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
	omap3torpedo_fix_pbias_voltage();
	omap3logic_i2c_init();
	omap_serial_init();
	board_mmc_init();
	board_smsc911x_init();

	/* Ensure SDRC pins are mux'd for self-refresh */
	omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
	omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
}

MACHINE_START(OMAP3_TORPEDO, "Logic OMAP3 Torpedo board")
	.boot_params	= 0x80000100,
	.map_io		= omap3_map_io,
	.init_early	= omap3logic_init_early,
	.init_irq	= omap3_init_irq,
	.init_machine	= omap3logic_init,
	.timer		= &omap3_timer,
MACHINE_END

MACHINE_START(OMAP3530_LV_SOM, "OMAP Logic 3530 LV SOM board")
	.boot_params	= 0x80000100,
	.map_io		= omap3_map_io,
	.init_early	= omap3logic_init_early,
	.init_irq	= omap3_init_irq,
	.init_machine	= omap3logic_init,
	.timer		= &omap3_timer,
MACHINE_END
Commit	Line	Data
d40f3f15 TN	1	/*
	2	* linux/arch/arm/mach-omap2/board-omap3logic.c
	3	*
	4	* Copyright (C) 2010 Li-Pro.Net
	5	* Stephan Linz <linz@li-pro.net>
	6	*
	7	* Copyright (C) 2010 Logic Product Development, Inc.
	8	* Peter Barada <peter.barada@logicpd.com>
	9	*
	10	* Modified from Beagle, EVM, and RX51
	11	*
	12	* This program is free software; you can redistribute it and/or modify
	13	* it under the terms of the GNU General Public License version 2 as
	14	* published by the Free Software Foundation.
	15	*/
	16
	17	#include <linux/kernel.h>
	18	#include <linux/init.h>
	19	#include <linux/platform_device.h>
	20	#include <linux/delay.h>
	21	#include <linux/err.h>
	22	#include <linux/clk.h>
	23	#include <linux/io.h>
	24	#include <linux/gpio.h>
	25
	26	#include <linux/regulator/machine.h>
	27
	28	#include <linux/i2c/twl.h>
8430281b	29	#include <linux/mmc/host.h>
d40f3f15 TN	30
	31	#include <mach/hardware.h>
	32	#include <asm/mach-types.h>
	33	#include <asm/mach/arch.h>
	34	#include <asm/mach/map.h>
	35
	36	#include "mux.h"
8430281b	37	#include "hsmmc.h"
4814ced5	38	#include "control.h"
fbd8071c	39	#include "common-board-devices.h"
d40f3f15 TN	40
	41	#include <plat/mux.h>
	42	#include <plat/board.h>
	43	#include <plat/common.h>
26428b5c	44	#include <plat/gpmc-smsc911x.h>
d40f3f15	45	#include <plat/gpmc.h>
d40f3f15	46	#include <plat/sdrc.h>
d40f3f15 TN	47
	48	#define OMAP3LOGIC_SMSC911X_CS 1
	49
	50	#define OMAP3530_LV_SOM_MMC_GPIO_CD 110
	51	#define OMAP3530_LV_SOM_MMC_GPIO_WP 126
	52	#define OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ 152
	53
	54	#define OMAP3_TORPEDO_MMC_GPIO_CD 127
	55	#define OMAP3_TORPEDO_SMSC911X_GPIO_IRQ 129
	56
	57	static struct regulator_consumer_supply omap3logic_vmmc1_supply = {
	58	.supply = "vmmc",
	59	};
	60
	61	/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
	62	static struct regulator_init_data omap3logic_vmmc1 = {
	63	.constraints = {
	64	.name = "VMMC1",
	65	.min_uV = 1850000,
	66	.max_uV = 3150000,
	67	.valid_modes_mask = REGULATOR_MODE_NORMAL
	68	\| REGULATOR_MODE_STANDBY,
	69	.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
	70	\| REGULATOR_CHANGE_MODE
	71	\| REGULATOR_CHANGE_STATUS,
	72	},
	73	.num_consumer_supplies = 1,
	74	.consumer_supplies = &omap3logic_vmmc1_supply,
	75	};
	76
	77	static struct twl4030_gpio_platform_data omap3logic_gpio_data = {
	78	.gpio_base = OMAP_MAX_GPIO_LINES,
	79	.irq_base = TWL4030_GPIO_IRQ_BASE,
	80	.irq_end = TWL4030_GPIO_IRQ_END,
	81	.use_leds = true,
	82	.pullups = BIT(1),
	83	.pulldowns = BIT(2) \| BIT(6) \| BIT(7) \| BIT(8)
	84	\| BIT(13) \| BIT(15) \| BIT(16) \| BIT(17),
	85	};
	86
	87	static struct twl4030_platform_data omap3logic_twldata = {
	88	.irq_base = TWL4030_IRQ_BASE,
	89	.irq_end = TWL4030_IRQ_END,
	90
	91	/* platform_data for children goes here */
	92	.gpio = &omap3logic_gpio_data,
8430281b	93	.vmmc1 = &omap3logic_vmmc1,
d40f3f15 TN	94	};
d40f3f15 TN	95
d40f3f15 TN	96	static int __init omap3logic_i2c_init(void)
d40f3f15 TN	97	{
fbd8071c	98	omap3_pmic_init("twl4030", &omap3logic_twldata);
d40f3f15 TN	99	return 0;
	100	}
	101
8430281b TN	102	static struct omap2_hsmmc_info __initdata board_mmc_info[] = {
	103	{
	104	.name = "external",
	105	.mmc = 1,
	106	.caps = MMC_CAP_4_BIT_DATA,
	107	.gpio_cd = -EINVAL,
	108	.gpio_wp = -EINVAL,
	109	},
	110	{} /* Terminator */
	111	};
	112
	113	static void __init board_mmc_init(void)
	114	{
	115	if (machine_is_omap3530_lv_som()) {
	116	/* OMAP3530 LV SOM board */
	117	board_mmc_info[0].gpio_cd = OMAP3530_LV_SOM_MMC_GPIO_CD;
	118	board_mmc_info[0].gpio_wp = OMAP3530_LV_SOM_MMC_GPIO_WP;
	119	omap_mux_init_signal("gpio_110", OMAP_PIN_OUTPUT);
	120	omap_mux_init_signal("gpio_126", OMAP_PIN_OUTPUT);
	121	} else if (machine_is_omap3_torpedo()) {
	122	/* OMAP3 Torpedo board */
	123	board_mmc_info[0].gpio_cd = OMAP3_TORPEDO_MMC_GPIO_CD;
	124	omap_mux_init_signal("gpio_127", OMAP_PIN_OUTPUT);
	125	} else {
	126	/* unsupported board */
	127	printk(KERN_ERR "%s(): unknown machine type\n", __func__);
	128	return;
	129	}
	130
	131	omap2_hsmmc_init(board_mmc_info);
	132	/* link regulators to MMC adapters */
	133	omap3logic_vmmc1_supply.dev = board_mmc_info[0].dev;
	134	}
	135
26428b5c TN	136	static struct omap_smsc911x_platform_data __initdata board_smsc911x_data = {
	137	.cs = OMAP3LOGIC_SMSC911X_CS,
	138	.gpio_irq = -EINVAL,
	139	.gpio_reset = -EINVAL,
26428b5c TN	140	};
	141
	142	/* TODO/FIXME (comment by Peter Barada, LogicPD):
	143	* Fix the PBIAS voltage for Torpedo MMC1 pins that
	144	* are used for other needs (IRQs, etc). */
	145	static void omap3torpedo_fix_pbias_voltage(void)
	146	{
	147	u16 control_pbias_offset = OMAP343X_CONTROL_PBIAS_LITE;
	148	u32 reg;
	149
	150	if (machine_is_omap3_torpedo())
	151	{
	152	/* Set the bias for the pin */
	153	reg = omap_ctrl_readl(control_pbias_offset);
	154
	155	reg &= ~OMAP343X_PBIASLITEPWRDNZ1;
	156	omap_ctrl_writel(reg, control_pbias_offset);
	157
	158	/* 100ms delay required for PBIAS configuration */
	159	msleep(100);
	160
	161	reg \|= OMAP343X_PBIASLITEVMODE1;
	162	reg \|= OMAP343X_PBIASLITEPWRDNZ1;
	163	omap_ctrl_writel(reg \| 0x300, control_pbias_offset);
	164	}
	165	}
	166
	167	static inline void __init board_smsc911x_init(void)
	168	{
	169	if (machine_is_omap3530_lv_som()) {
	170	/* OMAP3530 LV SOM board */
	171	board_smsc911x_data.gpio_irq =
	172	OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ;
	173	omap_mux_init_signal("gpio_152", OMAP_PIN_INPUT);
	174	} else if (machine_is_omap3_torpedo()) {
	175	/* OMAP3 Torpedo board */
	176	board_smsc911x_data.gpio_irq = OMAP3_TORPEDO_SMSC911X_GPIO_IRQ;
	177	omap_mux_init_signal("gpio_129", OMAP_PIN_INPUT);
	178	} else {
	179	/* unsupported board */
	180	printk(KERN_ERR "%s(): unknown machine type\n", __func__);
	181	return;
	182	}
	183
	184	gpmc_smsc911x_init(&board_smsc911x_data);
	185	}
	186
3dc3bad6	187	static void __init omap3logic_init_early(void)
d40f3f15	188	{
4805734b PW	189	omap2_init_common_infrastructure();
4805734b PW	190	omap2_init_common_devices(NULL, NULL);
d40f3f15 TN	191	}
d40f3f15 TN	192
26428b5c TN	193	#ifdef CONFIG_OMAP_MUX
	194	static struct omap_board_mux board_mux[] __initdata = {
	195	{ .reg_offset = OMAP_MUX_TERMINATOR },
	196	};
26428b5c TN	197	#endif
26428b5c TN	198
d40f3f15 TN	199	static void __init omap3logic_init(void)
d40f3f15 TN	200	{
26428b5c TN	201	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
26428b5c TN	202	omap3torpedo_fix_pbias_voltage();
d40f3f15 TN	203	omap3logic_i2c_init();
d40f3f15 TN	204	omap_serial_init();
8430281b	205	board_mmc_init();
26428b5c TN	206	board_smsc911x_init();
26428b5c TN	207
d40f3f15 TN	208	/* Ensure SDRC pins are mux'd for self-refresh */
	209	omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
	210	omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
	211	}
	212
	213	MACHINE_START(OMAP3_TORPEDO, "Logic OMAP3 Torpedo board")
d40f3f15 TN	214	.boot_params = 0x80000100,
d40f3f15 TN	215	.map_io = omap3_map_io,
3dc3bad6	216	.init_early = omap3logic_init_early,
741e3a89	217	.init_irq = omap3_init_irq,
d40f3f15	218	.init_machine = omap3logic_init,
e74984e4	219	.timer = &omap3_timer,
d40f3f15 TN	220	MACHINE_END
	221
	222	MACHINE_START(OMAP3530_LV_SOM, "OMAP Logic 3530 LV SOM board")
d40f3f15 TN	223	.boot_params = 0x80000100,
d40f3f15 TN	224	.map_io = omap3_map_io,
3dc3bad6	225	.init_early = omap3logic_init_early,
741e3a89	226	.init_irq = omap3_init_irq,
d40f3f15	227	.init_machine = omap3logic_init,
e74984e4	228	.timer = &omap3_timer,
d40f3f15	229	MACHINE_END