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/amba/serial.h>
  21 #include <linux/spi/spi.h>
  22 #include <linux/mfd/ab8500.h>
  23 #include <linux/regulator/ab8500.h>
  24 #include <linux/mfd/tc3589x.h>
  25 #include <linux/mfd/tps6105x.h>
  26 #include <linux/mfd/ab8500/gpio.h>
  27 #include <linux/leds-lp5521.h>
  28 #include <linux/input.h>
  29 #include <linux/gpio_keys.h>
  30
  31 #include <asm/mach-types.h>
  32 #include <asm/mach/arch.h>
  33
  34 #include <plat/i2c.h>
  35 #include <plat/ste_dma40.h>
  36
  37 #include <mach/hardware.h>
  38 #include <mach/setup.h>
  39 #include <mach/devices.h>
  40 #include <mach/irqs.h>
  41
  42 #include "ste-dma40-db8500.h"
  43 #include "devices-db8500.h"
  44 #include "board-mop500.h"
  45 #include "board-mop500-regulators.h"
  46
  47 static struct ab8500_gpio_platform_data ab8500_gpio_pdata = {
  48         .gpio_base              = MOP500_AB8500_GPIO(0),
  49         .irq_base               = MOP500_AB8500_VIR_GPIO_IRQ_BASE,
  50         /* config_reg is the initial configuration of ab8500 pins.
  51          * The pins can be configured as GPIO or alt functions based
  52          * on value present in GpioSel1 to GpioSel6 and AlternatFunction
  53          * register. This is the array of 7 configuration settings.
  54          * One has to compile time decide these settings. Below is the
  55          * explanation of these setting
  56          * GpioSel1 = 0x00 => Pins GPIO1 to GPIO8 are not used as GPIO
  57          * GpioSel2 = 0x1E => Pins GPIO10 to GPIO13 are configured as GPIO
  58          * GpioSel3 = 0x80 => Pin GPIO24 is configured as GPIO
  59          * GpioSel4 = 0x01 => Pin GPIo25 is configured as GPIO
  60          * GpioSel5 = 0x7A => Pins GPIO34, GPIO36 to GPIO39 are conf as GPIO
  61          * GpioSel6 = 0x00 => Pins GPIO41 & GPIo42 are not configured as GPIO
  62          * AlternaFunction = 0x00 => If Pins GPIO10 to 13 are not configured
  63          * as GPIO then this register selectes the alternate fucntions
  64          */
  65         .config_reg             = {0x00, 0x1E, 0x80, 0x01,
  66                                         0x7A, 0x00, 0x00},
  67 };
  68
  69 static struct ab8500_platform_data ab8500_platdata = {
  70         .irq_base       = MOP500_AB8500_IRQ_BASE,
  71         .regulator_reg_init = ab8500_regulator_reg_init,
  72         .num_regulator_reg_init = ARRAY_SIZE(ab8500_regulator_reg_init),
  73         .regulator      = ab8500_regulators,
  74         .num_regulator  = ARRAY_SIZE(ab8500_regulators),
  75         .gpio           = &ab8500_gpio_pdata,
  76 };
  77
  78 static struct resource ab8500_resources[] = {
  79         [0] = {
  80                 .start  = IRQ_DB8500_AB8500,
  81                 .end    = IRQ_DB8500_AB8500,
  82                 .flags  = IORESOURCE_IRQ
  83         }
  84 };
  85
  86 struct platform_device ab8500_device = {
  87         .name = "ab8500-i2c",
  88         .id = 0,
  89         .dev = {
  90                 .platform_data = &ab8500_platdata,
  91         },
  92         .num_resources = 1,
  93         .resource = ab8500_resources,
  94 };
  95
  96 /*
  97  * TPS61052
  98  */
  99
 100 static struct tps6105x_platform_data mop500_tps61052_data = {
 101         .mode = TPS6105X_MODE_VOLTAGE,
 102         .regulator_data = &tps61052_regulator,
 103 };
 104
 105 /*
 106  * TC35892
 107  */
 108
 109 static void mop500_tc35892_init(struct tc3589x *tc3589x, unsigned int base)
 110 {
 111         mop500_sdi_tc35892_init();
 112 }
 113
 114 static struct tc3589x_gpio_platform_data mop500_tc35892_gpio_data = {
 115         .gpio_base      = MOP500_EGPIO(0),
 116         .setup          = mop500_tc35892_init,
 117 };
 118
 119 static struct tc3589x_platform_data mop500_tc35892_data = {
 120         .block          = TC3589x_BLOCK_GPIO,
 121         .gpio           = &mop500_tc35892_gpio_data,
 122         .irq_base       = MOP500_EGPIO_IRQ_BASE,
 123 };
 124
 125 static struct lp5521_led_config lp5521_pri_led[] = {
 126        [0] = {
 127                .chan_nr = 0,
 128                .led_current = 0x2f,
 129                .max_current = 0x5f,
 130        },
 131        [1] = {
 132                .chan_nr = 1,
 133                .led_current = 0x2f,
 134                .max_current = 0x5f,
 135        },
 136        [2] = {
 137                .chan_nr = 2,
 138                .led_current = 0x2f,
 139                .max_current = 0x5f,
 140        },
 141 };
 142
 143 static struct lp5521_platform_data __initdata lp5521_pri_data = {
 144        .label = "lp5521_pri",
 145        .led_config     = &lp5521_pri_led[0],
 146        .num_channels   = 3,
 147        .clock_mode     = LP5521_CLOCK_EXT,
 148 };
 149
 150 static struct lp5521_led_config lp5521_sec_led[] = {
 151        [0] = {
 152                .chan_nr = 0,
 153                .led_current = 0x2f,
 154                .max_current = 0x5f,
 155        },
 156        [1] = {
 157                .chan_nr = 1,
 158                .led_current = 0x2f,
 159                .max_current = 0x5f,
 160        },
 161        [2] = {
 162                .chan_nr = 2,
 163                .led_current = 0x2f,
 164                .max_current = 0x5f,
 165        },
 166 };
 167
 168 static struct lp5521_platform_data __initdata lp5521_sec_data = {
 169        .label = "lp5521_sec",
 170        .led_config     = &lp5521_sec_led[0],
 171        .num_channels   = 3,
 172        .clock_mode     = LP5521_CLOCK_EXT,
 173 };
 174
 175 static struct i2c_board_info __initdata mop500_i2c0_devices[] = {
 176         {
 177                 I2C_BOARD_INFO("tc3589x", 0x42),
 178                 .irq            = NOMADIK_GPIO_TO_IRQ(217),
 179                 .platform_data  = &mop500_tc35892_data,
 180         },
 181         /* I2C0 devices only available prior to HREFv60 */
 182         {
 183                 I2C_BOARD_INFO("tps61052", 0x33),
 184                 .platform_data  = &mop500_tps61052_data,
 185         },
 186 };
 187
 188 #define NUM_PRE_V60_I2C0_DEVICES 1
 189
 190 static struct i2c_board_info __initdata mop500_i2c2_devices[] = {
 191         {
 192                 /* lp5521 LED driver, 1st device */
 193                 I2C_BOARD_INFO("lp5521", 0x33),
 194                 .platform_data = &lp5521_pri_data,
 195         },
 196         {
 197                 /* lp5521 LED driver, 2st device */
 198                 I2C_BOARD_INFO("lp5521", 0x34),
 199                 .platform_data = &lp5521_sec_data,
 200         },
 201         {
 202                 /* Light sensor Rohm BH1780GLI */
 203                 I2C_BOARD_INFO("bh1780", 0x29),
 204         },
 205 };
 206
 207 #define U8500_I2C_CONTROLLER(id, _slsu, _tft, _rft, clk, _sm) \
 208 static struct nmk_i2c_controller u8500_i2c##id##_data = { \
 209         /*                              \
 210          * slave data setup time, which is      \
 211          * 250 ns,100ns,10ns which is 14,6,2    \
 212          * respectively for a 48 Mhz    \
 213          * i2c clock                    \
 214          */                             \
 215         .slsu           = _slsu,        \
 216         /* Tx FIFO threshold */         \
 217         .tft            = _tft,         \
 218         /* Rx FIFO threshold */         \
 219         .rft            = _rft,         \
 220         /* std. mode operation */       \
 221         .clk_freq       = clk,          \
 222         .sm             = _sm,          \
 223 }
 224
 225 /*
 226  * The board uses 4 i2c controllers, initialize all of
 227  * them with slave data setup time of 250 ns,
 228  * Tx & Rx FIFO threshold values as 1 and standard
 229  * mode of operation
 230  */
 231 U8500_I2C_CONTROLLER(0, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
 232 U8500_I2C_CONTROLLER(1, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
 233 U8500_I2C_CONTROLLER(2, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
 234 U8500_I2C_CONTROLLER(3, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
 235
 236 static void __init mop500_i2c_init(void)
 237 {
 238         db8500_add_i2c0(&u8500_i2c0_data);
 239         db8500_add_i2c1(&u8500_i2c1_data);
 240         db8500_add_i2c2(&u8500_i2c2_data);
 241         db8500_add_i2c3(&u8500_i2c3_data);
 242 }
 243
 244 static struct gpio_keys_button mop500_gpio_keys[] = {
 245         {
 246                 .desc                   = "SFH7741 Proximity Sensor",
 247                 .type                   = EV_SW,
 248                 .code                   = SW_FRONT_PROXIMITY,
 249                 .active_low             = 0,
 250                 .can_disable            = 1,
 251         }
 252 };
 253
 254 static struct regulator *prox_regulator;
 255 static int mop500_prox_activate(struct device *dev);
 256 static void mop500_prox_deactivate(struct device *dev);
 257
 258 static struct gpio_keys_platform_data mop500_gpio_keys_data = {
 259         .buttons        = mop500_gpio_keys,
 260         .nbuttons       = ARRAY_SIZE(mop500_gpio_keys),
 261         .enable         = mop500_prox_activate,
 262         .disable        = mop500_prox_deactivate,
 263 };
 264
 265 static struct platform_device mop500_gpio_keys_device = {
 266         .name   = "gpio-keys",
 267         .id     = 0,
 268         .dev    = {
 269                 .platform_data  = &mop500_gpio_keys_data,
 270         },
 271 };
 272
 273 static int mop500_prox_activate(struct device *dev)
 274 {
 275         prox_regulator = regulator_get(&mop500_gpio_keys_device.dev,
 276                                                 "vcc");
 277         if (IS_ERR(prox_regulator)) {
 278                 dev_err(&mop500_gpio_keys_device.dev,
 279                         "no regulator\n");
 280                 return PTR_ERR(prox_regulator);
 281         }
 282         regulator_enable(prox_regulator);
 283         return 0;
 284 }
 285
 286 static void mop500_prox_deactivate(struct device *dev)
 287 {
 288         regulator_disable(prox_regulator);
 289         regulator_put(prox_regulator);
 290 }
 291
 292 /* add any platform devices here - TODO */
 293 static struct platform_device *platform_devs[] __initdata = {
 294         &mop500_gpio_keys_device,
 295 };
 296
 297 #ifdef CONFIG_STE_DMA40
 298 static struct stedma40_chan_cfg ssp0_dma_cfg_rx = {
 299         .mode = STEDMA40_MODE_LOGICAL,
 300         .dir = STEDMA40_PERIPH_TO_MEM,
 301         .src_dev_type =  DB8500_DMA_DEV8_SSP0_RX,
 302         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
 303         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 304         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 305 };
 306
 307 static struct stedma40_chan_cfg ssp0_dma_cfg_tx = {
 308         .mode = STEDMA40_MODE_LOGICAL,
 309         .dir = STEDMA40_MEM_TO_PERIPH,
 310         .src_dev_type = STEDMA40_DEV_SRC_MEMORY,
 311         .dst_dev_type = DB8500_DMA_DEV8_SSP0_TX,
 312         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 313         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 314 };
 315 #endif
 316
 317 static struct pl022_ssp_controller ssp0_platform_data = {
 318         .bus_id = 0,
 319 #ifdef CONFIG_STE_DMA40
 320         .enable_dma = 1,
 321         .dma_filter = stedma40_filter,
 322         .dma_rx_param = &ssp0_dma_cfg_rx,
 323         .dma_tx_param = &ssp0_dma_cfg_tx,
 324 #else
 325         .enable_dma = 0,
 326 #endif
 327         /* on this platform, gpio 31,142,144,214 &
 328          * 224 are connected as chip selects
 329          */
 330         .num_chipselect = 5,
 331 };
 332
 333 static void __init mop500_spi_init(void)
 334 {
 335         db8500_add_ssp0(&ssp0_platform_data);
 336 }
 337
 338 #ifdef CONFIG_STE_DMA40
 339 static struct stedma40_chan_cfg uart0_dma_cfg_rx = {
 340         .mode = STEDMA40_MODE_LOGICAL,
 341         .dir = STEDMA40_PERIPH_TO_MEM,
 342         .src_dev_type =  DB8500_DMA_DEV13_UART0_RX,
 343         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
 344         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 345         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 346 };
 347
 348 static struct stedma40_chan_cfg uart0_dma_cfg_tx = {
 349         .mode = STEDMA40_MODE_LOGICAL,
 350         .dir = STEDMA40_MEM_TO_PERIPH,
 351         .src_dev_type = STEDMA40_DEV_SRC_MEMORY,
 352         .dst_dev_type = DB8500_DMA_DEV13_UART0_TX,
 353         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 354         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 355 };
 356
 357 static struct stedma40_chan_cfg uart1_dma_cfg_rx = {
 358         .mode = STEDMA40_MODE_LOGICAL,
 359         .dir = STEDMA40_PERIPH_TO_MEM,
 360         .src_dev_type =  DB8500_DMA_DEV12_UART1_RX,
 361         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
 362         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 363         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 364 };
 365
 366 static struct stedma40_chan_cfg uart1_dma_cfg_tx = {
 367         .mode = STEDMA40_MODE_LOGICAL,
 368         .dir = STEDMA40_MEM_TO_PERIPH,
 369         .src_dev_type = STEDMA40_DEV_SRC_MEMORY,
 370         .dst_dev_type = DB8500_DMA_DEV12_UART1_TX,
 371         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 372         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 373 };
 374
 375 static struct stedma40_chan_cfg uart2_dma_cfg_rx = {
 376         .mode = STEDMA40_MODE_LOGICAL,
 377         .dir = STEDMA40_PERIPH_TO_MEM,
 378         .src_dev_type =  DB8500_DMA_DEV11_UART2_RX,
 379         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
 380         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 381         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 382 };
 383
 384 static struct stedma40_chan_cfg uart2_dma_cfg_tx = {
 385         .mode = STEDMA40_MODE_LOGICAL,
 386         .dir = STEDMA40_MEM_TO_PERIPH,
 387         .src_dev_type = STEDMA40_DEV_SRC_MEMORY,
 388         .dst_dev_type = DB8500_DMA_DEV11_UART2_TX,
 389         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 390         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 391 };
 392 #endif
 393
 394 static struct amba_pl011_data uart0_plat = {
 395 #ifdef CONFIG_STE_DMA40
 396         .dma_filter = stedma40_filter,
 397         .dma_rx_param = &uart0_dma_cfg_rx,
 398         .dma_tx_param = &uart0_dma_cfg_tx,
 399 #endif
 400 };
 401
 402 static struct amba_pl011_data uart1_plat = {
 403 #ifdef CONFIG_STE_DMA40
 404         .dma_filter = stedma40_filter,
 405         .dma_rx_param = &uart1_dma_cfg_rx,
 406         .dma_tx_param = &uart1_dma_cfg_tx,
 407 #endif
 408 };
 409
 410 static struct amba_pl011_data uart2_plat = {
 411 #ifdef CONFIG_STE_DMA40
 412         .dma_filter = stedma40_filter,
 413         .dma_rx_param = &uart2_dma_cfg_rx,
 414         .dma_tx_param = &uart2_dma_cfg_tx,
 415 #endif
 416 };
 417
 418 static void __init mop500_uart_init(void)
 419 {
 420         db8500_add_uart0(&uart0_plat);
 421         db8500_add_uart1(&uart1_plat);
 422         db8500_add_uart2(&uart2_plat);
 423 }
 424
 425 static void __init mop500_init_machine(void)
 426 {
 427         int i2c0_devs;
 428
 429         /*
 430          * The HREFv60 board removed a GPIO expander and routed
 431          * all these GPIO pins to the internal GPIO controller
 432          * instead.
 433          */
 434         if (machine_is_hrefv60())
 435                 mop500_gpio_keys[0].gpio = HREFV60_PROX_SENSE_GPIO;
 436         else
 437                 mop500_gpio_keys[0].gpio = GPIO_PROX_SENSOR;
 438
 439         u8500_init_devices();
 440
 441         mop500_pins_init();
 442
 443         platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
 444
 445         mop500_i2c_init();
 446         mop500_sdi_init();
 447         mop500_spi_init();
 448         mop500_uart_init();
 449
 450         platform_device_register(&ab8500_device);
 451
 452         i2c0_devs = ARRAY_SIZE(mop500_i2c0_devices);
 453         if (machine_is_hrefv60())
 454                 i2c0_devs -= NUM_PRE_V60_I2C0_DEVICES;
 455
 456         i2c_register_board_info(0, mop500_i2c0_devices, i2c0_devs);
 457         i2c_register_board_info(2, mop500_i2c2_devices,
 458                                 ARRAY_SIZE(mop500_i2c2_devices));
 459 }
 460
 461 MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
 462         /* Maintainer: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> */
 463         .boot_params    = 0x100,
 464         .map_io         = u8500_map_io,
 465         .init_irq       = ux500_init_irq,
 466         /* we re-use nomadik timer here */
 467         .timer          = &ux500_timer,
 468         .init_machine   = mop500_init_machine,
 469 MACHINE_END
 470
 471 MACHINE_START(HREFV60, "ST-Ericsson U8500 Platform HREFv60+")
 472         .boot_params    = 0x100,
 473         .map_io         = u8500_map_io,
 474         .init_irq       = ux500_init_irq,
 475         .timer          = &ux500_timer,
 476         .init_machine   = mop500_init_machine,
 477 MACHINE_END