aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-ux500/board-u5500.c
blob: 9de9e9c4dbbbcf2322e0fbaf3140537e31b89d4a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
/*
 * Copyright (C) ST-Ericsson SA 2010
 *
 * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
 * License terms: GNU General Public License (GPL) version 2
 */

#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/amba/bus.h>
#include <linux/irq.h>
#include <linux/i2c.h>
#include <linux/mfd/abx500/ab5500.h>

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

#include <plat/pincfg.h>
#include <plat/i2c.h>
#include <plat/gpio-nomadik.h>

#include <mach/hardware.h>
#include <mach/devices.h>
#include <mach/setup.h>

#include "pins-db5500.h"
#include "devices-db5500.h"
#include <linux/led-lm3530.h>

/*
 * GPIO
 */

static pin_cfg_t u5500_pins[] = {
	/* I2C */
	GPIO218_I2C2_SCL        | PIN_INPUT_PULLUP,
	GPIO219_I2C2_SDA        | PIN_INPUT_PULLUP,

	/* DISPLAY_ENABLE */
	GPIO226_GPIO        | PIN_OUTPUT_LOW,

	/* Backlight Enbale */
	GPIO224_GPIO        | PIN_OUTPUT_HIGH,
};
/*
 * I2C
 */

#define U5500_I2C_CONTROLLER(id, _slsu, _tft, _rft, clk, _sm) \
static struct nmk_i2c_controller u5500_i2c##id##_data = { \
	/*				\
	 * slave data setup time, which is	\
	 * 250 ns,100ns,10ns which is 14,6,2	\
	 * respectively for a 48 Mhz	\
	 * i2c clock			\
	 */				\
	.slsu		= _slsu,	\
	/* Tx FIFO threshold */		\
	.tft		= _tft,		\
	/* Rx FIFO threshold */		\
	.rft		= _rft,		\
	/* std. mode operation */	\
	.clk_freq	= clk,		\
	.sm		= _sm,		\
}
/*
 * The board uses TODO <3> i2c controllers, initialize all of
 * them with slave data setup time of 250 ns,
 * Tx & Rx FIFO threshold values as 1 and standard
 * mode of operation
 */

U5500_I2C_CONTROLLER(2,	0xe, 1, 1, 400000, I2C_FREQ_MODE_FAST);

static struct lm3530_platform_data u5500_als_platform_data = {
	.mode = LM3530_BL_MODE_MANUAL,
	.als_input_mode = LM3530_INPUT_ALS1,
	.max_current = LM3530_FS_CURR_26mA,
	.pwm_pol_hi = true,
	.als_avrg_time = LM3530_ALS_AVRG_TIME_512ms,
	.brt_ramp_law = 1,      /* Linear */
	.brt_ramp_fall = LM3530_RAMP_TIME_8s,
	.brt_ramp_rise = LM3530_RAMP_TIME_8s,
	.als1_resistor_sel = LM3530_ALS_IMPD_13_53kOhm,
	.als2_resistor_sel = LM3530_ALS_IMPD_Z,
	.als_vmin = 730,	/* mV */
	.als_vmax = 1020,	/* mV */
	.brt_val = 0x7F,	/* Max brightness */
};

static struct i2c_board_info __initdata u5500_i2c2_devices[] = {
	{
		/* Backlight */
		I2C_BOARD_INFO("lm3530-led", 0x36),
		.platform_data = &u5500_als_platform_data,
	},
};

static void __init u5500_i2c_init(void)
{
	db5500_add_i2c2(&u5500_i2c2_data);
	i2c_register_board_info(2, ARRAY_AND_SIZE(u5500_i2c2_devices));
}

static struct ab5500_platform_data ab5500_plf_data = {
	.irq = {
		.base = 0,
		.count = 0,
	},
	.init_settings = NULL,
	.init_settings_sz = 0,
	.pm_power_off = false,
};

static struct platform_device ab5500_device = {
	.name = "ab5500-core",
	.id = 0,
	.dev = {
		.platform_data = &ab5500_plf_data,
	},
	.num_resources = 0,
};

static struct platform_device *u5500_platform_devices[] __initdata = {
	&ab5500_device,
};

static void __init u5500_uart_init(void)
{
	db5500_add_uart0(NULL);
	db5500_add_uart1(NULL);
	db5500_add_uart2(NULL);
}

static void __init u5500_init_machine(void)
{
	u5500_init_devices();
	nmk_config_pins(u5500_pins, ARRAY_SIZE(u5500_pins));
	u5500_i2c_init();
	u5500_sdi_init();
	u5500_uart_init();

	platform_add_devices(u5500_platform_devices,
		ARRAY_SIZE(u5500_platform_devices));
}

MACHINE_START(U5500, "ST-Ericsson U5500 Platform")
	.atag_offset	= 0x100,
	.map_io		= u5500_map_io,
	.init_irq	= ux500_init_irq,
	.timer		= &ux500_timer,
	.handle_irq	= gic_handle_irq,
	.init_machine	= u5500_init_machine,
MACHINE_END