Merge branch 'samsung/exynos5' into next/soc2
[linux-2.6.git] / arch / arm / mach-ux500 / board-u5500.c
1 /*
2  * Copyright (C) ST-Ericsson SA 2010
3  *
4  * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
5  * License terms: GNU General Public License (GPL) version 2
6  */
7
8 #include <linux/init.h>
9 #include <linux/platform_device.h>
10 #include <linux/amba/bus.h>
11 #include <linux/irq.h>
12 #include <linux/i2c.h>
13 #include <linux/mfd/abx500/ab5500.h>
14
15 #include <asm/hardware/gic.h>
16 #include <asm/mach/arch.h>
17 #include <asm/mach-types.h>
18
19 #include <plat/pincfg.h>
20 #include <plat/i2c.h>
21 #include <plat/gpio-nomadik.h>
22
23 #include <mach/hardware.h>
24 #include <mach/devices.h>
25 #include <mach/setup.h>
26
27 #include "pins-db5500.h"
28 #include "devices-db5500.h"
29 #include <linux/led-lm3530.h>
30
31 /*
32  * GPIO
33  */
34
35 static pin_cfg_t u5500_pins[] = {
36         /* I2C */
37         GPIO218_I2C2_SCL        | PIN_INPUT_PULLUP,
38         GPIO219_I2C2_SDA        | PIN_INPUT_PULLUP,
39
40         /* DISPLAY_ENABLE */
41         GPIO226_GPIO        | PIN_OUTPUT_LOW,
42
43         /* Backlight Enbale */
44         GPIO224_GPIO        | PIN_OUTPUT_HIGH,
45 };
46 /*
47  * I2C
48  */
49
50 #define U5500_I2C_CONTROLLER(id, _slsu, _tft, _rft, clk, _sm) \
51 static struct nmk_i2c_controller u5500_i2c##id##_data = { \
52         /*                              \
53          * slave data setup time, which is      \
54          * 250 ns,100ns,10ns which is 14,6,2    \
55          * respectively for a 48 Mhz    \
56          * i2c clock                    \
57          */                             \
58         .slsu           = _slsu,        \
59         /* Tx FIFO threshold */         \
60         .tft            = _tft,         \
61         /* Rx FIFO threshold */         \
62         .rft            = _rft,         \
63         /* std. mode operation */       \
64         .clk_freq       = clk,          \
65         .sm             = _sm,          \
66 }
67 /*
68  * The board uses TODO <3> i2c controllers, initialize all of
69  * them with slave data setup time of 250 ns,
70  * Tx & Rx FIFO threshold values as 1 and standard
71  * mode of operation
72  */
73
74 U5500_I2C_CONTROLLER(2, 0xe, 1, 1, 400000, I2C_FREQ_MODE_FAST);
75
76 static struct lm3530_platform_data u5500_als_platform_data = {
77         .mode = LM3530_BL_MODE_MANUAL,
78         .als_input_mode = LM3530_INPUT_ALS1,
79         .max_current = LM3530_FS_CURR_26mA,
80         .pwm_pol_hi = true,
81         .als_avrg_time = LM3530_ALS_AVRG_TIME_512ms,
82         .brt_ramp_law = 1,      /* Linear */
83         .brt_ramp_fall = LM3530_RAMP_TIME_8s,
84         .brt_ramp_rise = LM3530_RAMP_TIME_8s,
85         .als1_resistor_sel = LM3530_ALS_IMPD_13_53kOhm,
86         .als2_resistor_sel = LM3530_ALS_IMPD_Z,
87         .als_vmin = 730,        /* mV */
88         .als_vmax = 1020,       /* mV */
89         .brt_val = 0x7F,        /* Max brightness */
90 };
91
92 static struct i2c_board_info __initdata u5500_i2c2_devices[] = {
93         {
94                 /* Backlight */
95                 I2C_BOARD_INFO("lm3530-led", 0x36),
96                 .platform_data = &u5500_als_platform_data,
97         },
98 };
99
100 static void __init u5500_i2c_init(struct device *parent)
101 {
102         db5500_add_i2c2(parent, &u5500_i2c2_data);
103         i2c_register_board_info(2, ARRAY_AND_SIZE(u5500_i2c2_devices));
104 }
105
106 static struct ab5500_platform_data ab5500_plf_data = {
107         .irq = {
108                 .base = 0,
109                 .count = 0,
110         },
111         .init_settings = NULL,
112         .init_settings_sz = 0,
113         .pm_power_off = false,
114 };
115
116 static struct platform_device ab5500_device = {
117         .name = "ab5500-core",
118         .id = 0,
119         .dev = {
120                 .platform_data = &ab5500_plf_data,
121         },
122         .num_resources = 0,
123 };
124
125 static struct platform_device *u5500_platform_devices[] __initdata = {
126         &ab5500_device,
127 };
128
129 static void __init u5500_uart_init(struct device *parent)
130 {
131         db5500_add_uart0(parent, NULL);
132         db5500_add_uart1(parent, NULL);
133         db5500_add_uart2(parent, NULL);
134 }
135
136 static void __init u5500_init_machine(void)
137 {
138         struct device *parent = NULL;
139         int i;
140
141         parent = u5500_init_devices();
142         nmk_config_pins(u5500_pins, ARRAY_SIZE(u5500_pins));
143
144         u5500_i2c_init(parent);
145         u5500_sdi_init(parent);
146         u5500_uart_init(parent);
147
148         for (i = 0; i < ARRAY_SIZE(u5500_platform_devices); i++)
149                 u5500_platform_devices[i]->dev.parent = parent;
150
151         platform_add_devices(u5500_platform_devices,
152                 ARRAY_SIZE(u5500_platform_devices));
153 }
154
155 MACHINE_START(U5500, "ST-Ericsson U5500 Platform")
156         .atag_offset    = 0x100,
157         .map_io         = u5500_map_io,
158         .init_irq       = ux500_init_irq,
159         .timer          = &ux500_timer,
160         .handle_irq     = gic_handle_irq,
161         .init_machine   = u5500_init_machine,
162 MACHINE_END