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 };
 182
 183 /* I2C0 devices only available prior to HREFv60 */
 184 static struct i2c_board_info __initdata mop500_i2c0_old_devices[] = {
 185         {
 186                 I2C_BOARD_INFO("tps61052", 0x33),
 187                 .platform_data  = &mop500_tps61052_data,
 188         },
 189 };
 190
 191 static struct i2c_board_info __initdata mop500_i2c2_devices[] = {
 192         {
 193                 /* lp5521 LED driver, 1st device */
 194                 I2C_BOARD_INFO("lp5521", 0x33),
 195                 .platform_data = &lp5521_pri_data,
 196         },
 197         {
 198                 /* lp5521 LED driver, 2st device */
 199                 I2C_BOARD_INFO("lp5521", 0x34),
 200                 .platform_data = &lp5521_sec_data,
 201         },
 202         {
 203                 /* Light sensor Rohm BH1780GLI */
 204                 I2C_BOARD_INFO("bh1780", 0x29),
 205         },
 206 };
 207
 208 #define U8500_I2C_CONTROLLER(id, _slsu, _tft, _rft, clk, _sm) \
 209 static struct nmk_i2c_controller u8500_i2c##id##_data = { \
 210         /*                              \
 211          * slave data setup time, which is      \
 212          * 250 ns,100ns,10ns which is 14,6,2    \
 213          * respectively for a 48 Mhz    \
 214          * i2c clock                    \
 215          */                             \
 216         .slsu           = _slsu,        \
 217         /* Tx FIFO threshold */         \
 218         .tft            = _tft,         \
 219         /* Rx FIFO threshold */         \
 220         .rft            = _rft,         \
 221         /* std. mode operation */       \
 222         .clk_freq       = clk,          \
 223         .sm             = _sm,          \
 224 }
 225
 226 /*
 227  * The board uses 4 i2c controllers, initialize all of
 228  * them with slave data setup time of 250 ns,
 229  * Tx & Rx FIFO threshold values as 1 and standard
 230  * mode of operation
 231  */
 232 U8500_I2C_CONTROLLER(0, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
 233 U8500_I2C_CONTROLLER(1, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
 234 U8500_I2C_CONTROLLER(2, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
 235 U8500_I2C_CONTROLLER(3, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
 236
 237 static void __init mop500_i2c_init(void)
 238 {
 239         db8500_add_i2c0(&u8500_i2c0_data);
 240         db8500_add_i2c1(&u8500_i2c1_data);
 241         db8500_add_i2c2(&u8500_i2c2_data);
 242         db8500_add_i2c3(&u8500_i2c3_data);
 243 }
 244
 245 static struct gpio_keys_button mop500_gpio_keys[] = {
 246         {
 247                 .desc                   = "SFH7741 Proximity Sensor",
 248                 .type                   = EV_SW,
 249                 .code                   = SW_FRONT_PROXIMITY,
 250                 .active_low             = 0,
 251                 .can_disable            = 1,
 252         }
 253 };
 254
 255 static struct regulator *prox_regulator;
 256 static int mop500_prox_activate(struct device *dev);
 257 static void mop500_prox_deactivate(struct device *dev);
 258
 259 static struct gpio_keys_platform_data mop500_gpio_keys_data = {
 260         .buttons        = mop500_gpio_keys,
 261         .nbuttons       = ARRAY_SIZE(mop500_gpio_keys),
 262         .enable         = mop500_prox_activate,
 263         .disable        = mop500_prox_deactivate,
 264 };
 265
 266 static struct platform_device mop500_gpio_keys_device = {
 267         .name   = "gpio-keys",
 268         .id     = 0,
 269         .dev    = {
 270                 .platform_data  = &mop500_gpio_keys_data,
 271         },
 272 };
 273
 274 static int mop500_prox_activate(struct device *dev)
 275 {
 276         prox_regulator = regulator_get(&mop500_gpio_keys_device.dev,
 277                                                 "vcc");
 278         if (IS_ERR(prox_regulator)) {
 279                 dev_err(&mop500_gpio_keys_device.dev,
 280                         "no regulator\n");
 281                 return PTR_ERR(prox_regulator);
 282         }
 283         regulator_enable(prox_regulator);
 284         return 0;
 285 }
 286
 287 static void mop500_prox_deactivate(struct device *dev)
 288 {
 289         regulator_disable(prox_regulator);
 290         regulator_put(prox_regulator);
 291 }
 292
 293 /* add any platform devices here - TODO */
 294 static struct platform_device *platform_devs[] __initdata = {
 295         &mop500_gpio_keys_device,
 296 };
 297
 298 #ifdef CONFIG_STE_DMA40
 299 static struct stedma40_chan_cfg ssp0_dma_cfg_rx = {
 300         .mode = STEDMA40_MODE_LOGICAL,
 301         .dir = STEDMA40_PERIPH_TO_MEM,
 302         .src_dev_type =  DB8500_DMA_DEV8_SSP0_RX,
 303         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
 304         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 305         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 306 };
 307
 308 static struct stedma40_chan_cfg ssp0_dma_cfg_tx = {
 309         .mode = STEDMA40_MODE_LOGICAL,
 310         .dir = STEDMA40_MEM_TO_PERIPH,
 311         .src_dev_type = STEDMA40_DEV_SRC_MEMORY,
 312         .dst_dev_type = DB8500_DMA_DEV8_SSP0_TX,
 313         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 314         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 315 };
 316 #endif
 317
 318 static struct pl022_ssp_controller ssp0_platform_data = {
 319         .bus_id = 0,
 320 #ifdef CONFIG_STE_DMA40
 321         .enable_dma = 1,
 322         .dma_filter = stedma40_filter,
 323         .dma_rx_param = &ssp0_dma_cfg_rx,
 324         .dma_tx_param = &ssp0_dma_cfg_tx,
 325 #else
 326         .enable_dma = 0,
 327 #endif
 328         /* on this platform, gpio 31,142,144,214 &
 329          * 224 are connected as chip selects
 330          */
 331         .num_chipselect = 5,
 332 };
 333
 334 static void __init mop500_spi_init(void)
 335 {
 336         db8500_add_ssp0(&ssp0_platform_data);
 337 }
 338
 339 #ifdef CONFIG_STE_DMA40
 340 static struct stedma40_chan_cfg uart0_dma_cfg_rx = {
 341         .mode = STEDMA40_MODE_LOGICAL,
 342         .dir = STEDMA40_PERIPH_TO_MEM,
 343         .src_dev_type =  DB8500_DMA_DEV13_UART0_RX,
 344         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
 345         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 346         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 347 };
 348
 349 static struct stedma40_chan_cfg uart0_dma_cfg_tx = {
 350         .mode = STEDMA40_MODE_LOGICAL,
 351         .dir = STEDMA40_MEM_TO_PERIPH,
 352         .src_dev_type = STEDMA40_DEV_SRC_MEMORY,
 353         .dst_dev_type = DB8500_DMA_DEV13_UART0_TX,
 354         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 355         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 356 };
 357
 358 static struct stedma40_chan_cfg uart1_dma_cfg_rx = {
 359         .mode = STEDMA40_MODE_LOGICAL,
 360         .dir = STEDMA40_PERIPH_TO_MEM,
 361         .src_dev_type =  DB8500_DMA_DEV12_UART1_RX,
 362         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
 363         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 364         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 365 };
 366
 367 static struct stedma40_chan_cfg uart1_dma_cfg_tx = {
 368         .mode = STEDMA40_MODE_LOGICAL,
 369         .dir = STEDMA40_MEM_TO_PERIPH,
 370         .src_dev_type = STEDMA40_DEV_SRC_MEMORY,
 371         .dst_dev_type = DB8500_DMA_DEV12_UART1_TX,
 372         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 373         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 374 };
 375
 376 static struct stedma40_chan_cfg uart2_dma_cfg_rx = {
 377         .mode = STEDMA40_MODE_LOGICAL,
 378         .dir = STEDMA40_PERIPH_TO_MEM,
 379         .src_dev_type =  DB8500_DMA_DEV11_UART2_RX,
 380         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
 381         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 382         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 383 };
 384
 385 static struct stedma40_chan_cfg uart2_dma_cfg_tx = {
 386         .mode = STEDMA40_MODE_LOGICAL,
 387         .dir = STEDMA40_MEM_TO_PERIPH,
 388         .src_dev_type = STEDMA40_DEV_SRC_MEMORY,
 389         .dst_dev_type = DB8500_DMA_DEV11_UART2_TX,
 390         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 391         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 392 };
 393 #endif
 394
 395 static struct amba_pl011_data uart0_plat = {
 396 #ifdef CONFIG_STE_DMA40
 397         .dma_filter = stedma40_filter,
 398         .dma_rx_param = &uart0_dma_cfg_rx,
 399         .dma_tx_param = &uart0_dma_cfg_tx,
 400 #endif
 401 };
 402
 403 static struct amba_pl011_data uart1_plat = {
 404 #ifdef CONFIG_STE_DMA40
 405         .dma_filter = stedma40_filter,
 406         .dma_rx_param = &uart1_dma_cfg_rx,
 407         .dma_tx_param = &uart1_dma_cfg_tx,
 408 #endif
 409 };
 410
 411 static struct amba_pl011_data uart2_plat = {
 412 #ifdef CONFIG_STE_DMA40
 413         .dma_filter = stedma40_filter,
 414         .dma_rx_param = &uart2_dma_cfg_rx,
 415         .dma_tx_param = &uart2_dma_cfg_tx,
 416 #endif
 417 };
 418
 419 static void __init mop500_uart_init(void)
 420 {
 421         db8500_add_uart0(&uart0_plat);
 422         db8500_add_uart1(&uart1_plat);
 423         db8500_add_uart2(&uart2_plat);
 424 }
 425
 426 static void __init mop500_init_machine(void)
 427 {
 428         /*
 429          * The HREFv60 board removed a GPIO expander and routed
 430          * all these GPIO pins to the internal GPIO controller
 431          * instead.
 432          */
 433         if (machine_is_hrefv60())
 434                 mop500_gpio_keys[0].gpio = HREFV60_PROX_SENSE_GPIO;
 435         else
 436                 mop500_gpio_keys[0].gpio = GPIO_PROX_SENSOR;
 437
 438         u8500_init_devices();
 439
 440         mop500_pins_init();
 441
 442         platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
 443
 444         mop500_i2c_init();
 445         mop500_sdi_init();
 446         mop500_spi_init();
 447         mop500_uart_init();
 448
 449         platform_device_register(&ab8500_device);
 450
 451         i2c_register_board_info(0, mop500_i2c0_devices,
 452                                 ARRAY_SIZE(mop500_i2c0_devices));
 453         if (!machine_is_hrefv60())
 454                 i2c_register_board_info(0, mop500_i2c0_old_devices,
 455                                         ARRAY_SIZE(mop500_i2c0_old_devices));
 456         i2c_register_board_info(2, mop500_i2c2_devices,
 457                                 ARRAY_SIZE(mop500_i2c2_devices));
 458 }
 459
 460 MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
 461         /* Maintainer: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> */
 462         .boot_params    = 0x100,
 463         .map_io         = u8500_map_io,
 464         .init_irq       = ux500_init_irq,
 465         /* we re-use nomadik timer here */
 466         .timer          = &ux500_timer,
 467         .init_machine   = mop500_init_machine,
 468 MACHINE_END
 469
 470 MACHINE_START(HREFV60, "ST-Ericsson U8500 Platform HREFv60+")
 471         .boot_params    = 0x100,
 472         .map_io         = u8500_map_io,
 473         .init_irq       = ux500_init_irq,
 474         .timer          = &ux500_timer,
 475         .init_machine   = mop500_init_machine,
 476 MACHINE_END