arch/arm/mach-ux500/board-mop500.c

   1 /*
   2  * Copyright (C) 2008-2009 ST-Ericsson
   3  *
   4  * Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
   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 version 2, as
   8  * published by the Free Software Foundation.
   9  *
  10  */
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/interrupt.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/io.h>
  16 #include <linux/i2c.h>
  17 #include <linux/gpio.h>
  18 #include <linux/amba/bus.h>
  19 #include <linux/amba/pl022.h>
  20 #include <linux/spi/spi.h>
  21 #include <linux/mfd/ab8500.h>
  22 #include <linux/mfd/tc3589x.h>
  23 #include <linux/leds-lp5521.h>
  24 #include <linux/input.h>
  25 #include <linux/gpio_keys.h>
  26
  27 #include <asm/mach-types.h>
  28 #include <asm/mach/arch.h>
  29
  30 #include <plat/pincfg.h>
  31 #include <plat/i2c.h>
  32
  33 #include <mach/hardware.h>
  34 #include <mach/setup.h>
  35 #include <mach/devices.h>
  36 #include <mach/irqs.h>
  37
  38 #include "devices-db8500.h"
  39 #include "pins-db8500.h"
  40 #include "board-mop500.h"
  41 #include "board-mop500-regulators.h"
  42
  43 static pin_cfg_t mop500_pins[] = {
  44         /* SSP0 */
  45         GPIO143_SSP0_CLK,
  46         GPIO144_SSP0_FRM,
  47         GPIO145_SSP0_RXD,
  48         GPIO146_SSP0_TXD,
  49
  50         /* I2C */
  51         GPIO147_I2C0_SCL,
  52         GPIO148_I2C0_SDA,
  53         GPIO16_I2C1_SCL,
  54         GPIO17_I2C1_SDA,
  55         GPIO10_I2C2_SDA,
  56         GPIO11_I2C2_SCL,
  57         GPIO229_I2C3_SDA,
  58         GPIO230_I2C3_SCL,
  59
  60         /* SKE keypad */
  61         GPIO153_KP_I7,
  62         GPIO154_KP_I6,
  63         GPIO155_KP_I5,
  64         GPIO156_KP_I4,
  65         GPIO157_KP_O7,
  66         GPIO158_KP_O6,
  67         GPIO159_KP_O5,
  68         GPIO160_KP_O4,
  69         GPIO161_KP_I3,
  70         GPIO162_KP_I2,
  71         GPIO163_KP_I1,
  72         GPIO164_KP_I0,
  73         GPIO165_KP_O3,
  74         GPIO166_KP_O2,
  75         GPIO167_KP_O1,
  76         GPIO168_KP_O0,
  77
  78         /* GPIO_EXP_INT */
  79         GPIO217_GPIO,
  80
  81         /* STMPE1601 IRQ */
  82         GPIO218_GPIO    | PIN_INPUT_PULLUP,
  83
  84         /* touch screen */
  85         GPIO84_GPIO     | PIN_INPUT_PULLUP,
  86 };
  87
  88 static struct ab8500_platform_data ab8500_platdata = {
  89         .irq_base       = MOP500_AB8500_IRQ_BASE,
  90         .regulator      = ab8500_regulators,
  91         .num_regulator  = ARRAY_SIZE(ab8500_regulators),
  92 };
  93
  94 static struct resource ab8500_resources[] = {
  95         [0] = {
  96                 .start  = IRQ_DB8500_AB8500,
  97                 .end    = IRQ_DB8500_AB8500,
  98                 .flags  = IORESOURCE_IRQ
  99         }
 100 };
 101
 102 struct platform_device ab8500_device = {
 103         .name = "ab8500-i2c",
 104         .id = 0,
 105         .dev = {
 106                 .platform_data = &ab8500_platdata,
 107         },
 108         .num_resources = 1,
 109         .resource = ab8500_resources,
 110 };
 111
 112 static struct pl022_ssp_controller ssp0_platform_data = {
 113         .bus_id = 0,
 114         /* pl022 not yet supports dma */
 115         .enable_dma = 0,
 116         /* on this platform, gpio 31,142,144,214 &
 117          * 224 are connected as chip selects
 118          */
 119         .num_chipselect = 5,
 120 };
 121
 122 /*
 123  * TC35892
 124  */
 125
 126 static void mop500_tc35892_init(struct tc3589x *tc3589x, unsigned int base)
 127 {
 128         mop500_sdi_tc35892_init();
 129 }
 130
 131 static struct tc3589x_gpio_platform_data mop500_tc35892_gpio_data = {
 132         .gpio_base      = MOP500_EGPIO(0),
 133         .setup          = mop500_tc35892_init,
 134 };
 135
 136 static struct tc3589x_platform_data mop500_tc35892_data = {
 137         .block          = TC3589x_BLOCK_GPIO,
 138         .gpio           = &mop500_tc35892_gpio_data,
 139         .irq_base       = MOP500_EGPIO_IRQ_BASE,
 140 };
 141
 142 static struct lp5521_led_config lp5521_pri_led[] = {
 143        [0] = {
 144                .chan_nr = 0,
 145                .led_current = 0x2f,
 146                .max_current = 0x5f,
 147        },
 148        [1] = {
 149                .chan_nr = 1,
 150                .led_current = 0x2f,
 151                .max_current = 0x5f,
 152        },
 153        [2] = {
 154                .chan_nr = 2,
 155                .led_current = 0x2f,
 156                .max_current = 0x5f,
 157        },
 158 };
 159
 160 static struct lp5521_platform_data __initdata lp5521_pri_data = {
 161        .label = "lp5521_pri",
 162        .led_config     = &lp5521_pri_led[0],
 163        .num_channels   = 3,
 164        .clock_mode     = LP5521_CLOCK_EXT,
 165 };
 166
 167 static struct lp5521_led_config lp5521_sec_led[] = {
 168        [0] = {
 169                .chan_nr = 0,
 170                .led_current = 0x2f,
 171                .max_current = 0x5f,
 172        },
 173        [1] = {
 174                .chan_nr = 1,
 175                .led_current = 0x2f,
 176                .max_current = 0x5f,
 177        },
 178        [2] = {
 179                .chan_nr = 2,
 180                .led_current = 0x2f,
 181                .max_current = 0x5f,
 182        },
 183 };
 184
 185 static struct lp5521_platform_data __initdata lp5521_sec_data = {
 186        .label = "lp5521_sec",
 187        .led_config     = &lp5521_sec_led[0],
 188        .num_channels   = 3,
 189        .clock_mode     = LP5521_CLOCK_EXT,
 190 };
 191
 192 static struct i2c_board_info mop500_i2c0_devices[] = {
 193         {
 194                 I2C_BOARD_INFO("tc3589x", 0x42),
 195                 .irq            = NOMADIK_GPIO_TO_IRQ(217),
 196                 .platform_data  = &mop500_tc35892_data,
 197         },
 198 };
 199
 200 static struct i2c_board_info __initdata mop500_i2c2_devices[] = {
 201         {
 202                 /* lp5521 LED driver, 1st device */
 203                 I2C_BOARD_INFO("lp5521", 0x33),
 204                 .platform_data = &lp5521_pri_data,
 205         },
 206         {
 207                 /* lp5521 LED driver, 2st device */
 208                 I2C_BOARD_INFO("lp5521", 0x34),
 209                 .platform_data = &lp5521_sec_data,
 210         },
 211 };
 212
 213 #define U8500_I2C_CONTROLLER(id, _slsu, _tft, _rft, clk, _sm) \
 214 static struct nmk_i2c_controller u8500_i2c##id##_data = { \
 215         /*                              \
 216          * slave data setup time, which is      \
 217          * 250 ns,100ns,10ns which is 14,6,2    \
 218          * respectively for a 48 Mhz    \
 219          * i2c clock                    \
 220          */                             \
 221         .slsu           = _slsu,        \
 222         /* Tx FIFO threshold */         \
 223         .tft            = _tft,         \
 224         /* Rx FIFO threshold */         \
 225         .rft            = _rft,         \
 226         /* std. mode operation */       \
 227         .clk_freq       = clk,          \
 228         .sm             = _sm,          \
 229 }
 230
 231 /*
 232  * The board uses 4 i2c controllers, initialize all of
 233  * them with slave data setup time of 250 ns,
 234  * Tx & Rx FIFO threshold values as 1 and standard
 235  * mode of operation
 236  */
 237 U8500_I2C_CONTROLLER(0, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
 238 U8500_I2C_CONTROLLER(1, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
 239 U8500_I2C_CONTROLLER(2, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
 240 U8500_I2C_CONTROLLER(3, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
 241
 242 static void __init mop500_i2c_init(void)
 243 {
 244         db8500_add_i2c0(&u8500_i2c0_data);
 245         db8500_add_i2c1(&u8500_i2c1_data);
 246         db8500_add_i2c2(&u8500_i2c2_data);
 247         db8500_add_i2c3(&u8500_i2c3_data);
 248 }
 249
 250 static struct gpio_keys_button mop500_gpio_keys[] = {
 251         {
 252                 .desc                   = "SFH7741 Proximity Sensor",
 253                 .type                   = EV_SW,
 254                 .code                   = SW_FRONT_PROXIMITY,
 255                 .gpio                   = GPIO_PROX_SENSOR,
 256                 .active_low             = 0,
 257                 .can_disable            = 1,
 258         }
 259 };
 260
 261 static struct regulator *prox_regulator;
 262 static int mop500_prox_activate(struct device *dev);
 263 static void mop500_prox_deactivate(struct device *dev);
 264
 265 static struct gpio_keys_platform_data mop500_gpio_keys_data = {
 266         .buttons        = mop500_gpio_keys,
 267         .nbuttons       = ARRAY_SIZE(mop500_gpio_keys),
 268         .enable         = mop500_prox_activate,
 269         .disable        = mop500_prox_deactivate,
 270 };
 271
 272 static struct platform_device mop500_gpio_keys_device = {
 273         .name   = "gpio-keys",
 274         .id     = 0,
 275         .dev    = {
 276                 .platform_data  = &mop500_gpio_keys_data,
 277         },
 278 };
 279
 280 static int mop500_prox_activate(struct device *dev)
 281 {
 282         prox_regulator = regulator_get(&mop500_gpio_keys_device.dev,
 283                                                 "vcc");
 284         if (IS_ERR(prox_regulator)) {
 285                 dev_err(&mop500_gpio_keys_device.dev,
 286                         "no regulator\n");
 287                 return PTR_ERR(prox_regulator);
 288         }
 289         regulator_enable(prox_regulator);
 290         return 0;
 291 }
 292
 293 static void mop500_prox_deactivate(struct device *dev)
 294 {
 295         regulator_disable(prox_regulator);
 296         regulator_put(prox_regulator);
 297 }
 298
 299 /* add any platform devices here - TODO */
 300 static struct platform_device *platform_devs[] __initdata = {
 301         &mop500_gpio_keys_device,
 302 };
 303
 304 static void __init mop500_spi_init(void)
 305 {
 306         db8500_add_ssp0(&ssp0_platform_data);
 307 }
 308
 309 static void __init mop500_uart_init(void)
 310 {
 311         db8500_add_uart0();
 312         db8500_add_uart1();
 313         db8500_add_uart2();
 314 }
 315
 316 static void __init u8500_init_machine(void)
 317 {
 318         u8500_init_devices();
 319
 320         nmk_config_pins(mop500_pins, ARRAY_SIZE(mop500_pins));
 321
 322         platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
 323
 324         mop500_i2c_init();
 325         mop500_sdi_init();
 326         mop500_spi_init();
 327         mop500_uart_init();
 328
 329         platform_device_register(&ab8500_device);
 330
 331         i2c_register_board_info(0, mop500_i2c0_devices,
 332                                 ARRAY_SIZE(mop500_i2c0_devices));
 333         i2c_register_board_info(2, mop500_i2c2_devices,
 334                                 ARRAY_SIZE(mop500_i2c2_devices));
 335 }
 336
 337 MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
 338         /* Maintainer: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> */
 339         .boot_params    = 0x100,
 340         .map_io         = u8500_map_io,
 341         .init_irq       = ux500_init_irq,
 342         /* we re-use nomadik timer here */
 343         .timer          = &ux500_timer,
 344         .init_machine   = u8500_init_machine,
 345 MACHINE_END