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 #include <linux/delay.h>
  31
  32 #include <asm/mach-types.h>
  33 #include <asm/mach/arch.h>
  34
  35 #include <plat/i2c.h>
  36 #include <plat/ste_dma40.h>
  37 #include <plat/pincfg.h>
  38
  39 #include <mach/hardware.h>
  40 #include <mach/setup.h>
  41 #include <mach/devices.h>
  42 #include <mach/irqs.h>
  43
  44 #include "pins-db8500.h"
  45 #include "ste-dma40-db8500.h"
  46 #include "devices-db8500.h"
  47 #include "board-mop500.h"
  48 #include "board-mop500-regulators.h"
  49
  50 static struct ab8500_gpio_platform_data ab8500_gpio_pdata = {
  51         .gpio_base              = MOP500_AB8500_GPIO(0),
  52         .irq_base               = MOP500_AB8500_VIR_GPIO_IRQ_BASE,
  53         /* config_reg is the initial configuration of ab8500 pins.
  54          * The pins can be configured as GPIO or alt functions based
  55          * on value present in GpioSel1 to GpioSel6 and AlternatFunction
  56          * register. This is the array of 7 configuration settings.
  57          * One has to compile time decide these settings. Below is the
  58          * explanation of these setting
  59          * GpioSel1 = 0x00 => Pins GPIO1 to GPIO8 are not used as GPIO
  60          * GpioSel2 = 0x1E => Pins GPIO10 to GPIO13 are configured as GPIO
  61          * GpioSel3 = 0x80 => Pin GPIO24 is configured as GPIO
  62          * GpioSel4 = 0x01 => Pin GPIo25 is configured as GPIO
  63          * GpioSel5 = 0x7A => Pins GPIO34, GPIO36 to GPIO39 are conf as GPIO
  64          * GpioSel6 = 0x00 => Pins GPIO41 & GPIo42 are not configured as GPIO
  65          * AlternaFunction = 0x00 => If Pins GPIO10 to 13 are not configured
  66          * as GPIO then this register selectes the alternate fucntions
  67          */
  68         .config_reg             = {0x00, 0x1E, 0x80, 0x01,
  69                                         0x7A, 0x00, 0x00},
  70 };
  71
  72 static struct ab8500_platform_data ab8500_platdata = {
  73         .irq_base       = MOP500_AB8500_IRQ_BASE,
  74         .regulator_reg_init = ab8500_regulator_reg_init,
  75         .num_regulator_reg_init = ARRAY_SIZE(ab8500_regulator_reg_init),
  76         .regulator      = ab8500_regulators,
  77         .num_regulator  = ARRAY_SIZE(ab8500_regulators),
  78         .gpio           = &ab8500_gpio_pdata,
  79 };
  80
  81 static struct resource ab8500_resources[] = {
  82         [0] = {
  83                 .start  = IRQ_DB8500_AB8500,
  84                 .end    = IRQ_DB8500_AB8500,
  85                 .flags  = IORESOURCE_IRQ
  86         }
  87 };
  88
  89 struct platform_device ab8500_device = {
  90         .name = "ab8500-i2c",
  91         .id = 0,
  92         .dev = {
  93                 .platform_data = &ab8500_platdata,
  94         },
  95         .num_resources = 1,
  96         .resource = ab8500_resources,
  97 };
  98
  99 /*
 100  * TPS61052
 101  */
 102
 103 static struct tps6105x_platform_data mop500_tps61052_data = {
 104         .mode = TPS6105X_MODE_VOLTAGE,
 105         .regulator_data = &tps61052_regulator,
 106 };
 107
 108 /*
 109  * TC35892
 110  */
 111
 112 static void mop500_tc35892_init(struct tc3589x *tc3589x, unsigned int base)
 113 {
 114         mop500_sdi_tc35892_init();
 115 }
 116
 117 static struct tc3589x_gpio_platform_data mop500_tc35892_gpio_data = {
 118         .gpio_base      = MOP500_EGPIO(0),
 119         .setup          = mop500_tc35892_init,
 120 };
 121
 122 static struct tc3589x_platform_data mop500_tc35892_data = {
 123         .block          = TC3589x_BLOCK_GPIO,
 124         .gpio           = &mop500_tc35892_gpio_data,
 125         .irq_base       = MOP500_EGPIO_IRQ_BASE,
 126 };
 127
 128 static struct lp5521_led_config lp5521_pri_led[] = {
 129        [0] = {
 130                .chan_nr = 0,
 131                .led_current = 0x2f,
 132                .max_current = 0x5f,
 133        },
 134        [1] = {
 135                .chan_nr = 1,
 136                .led_current = 0x2f,
 137                .max_current = 0x5f,
 138        },
 139        [2] = {
 140                .chan_nr = 2,
 141                .led_current = 0x2f,
 142                .max_current = 0x5f,
 143        },
 144 };
 145
 146 static struct lp5521_platform_data __initdata lp5521_pri_data = {
 147        .label = "lp5521_pri",
 148        .led_config     = &lp5521_pri_led[0],
 149        .num_channels   = 3,
 150        .clock_mode     = LP5521_CLOCK_EXT,
 151 };
 152
 153 static struct lp5521_led_config lp5521_sec_led[] = {
 154        [0] = {
 155                .chan_nr = 0,
 156                .led_current = 0x2f,
 157                .max_current = 0x5f,
 158        },
 159        [1] = {
 160                .chan_nr = 1,
 161                .led_current = 0x2f,
 162                .max_current = 0x5f,
 163        },
 164        [2] = {
 165                .chan_nr = 2,
 166                .led_current = 0x2f,
 167                .max_current = 0x5f,
 168        },
 169 };
 170
 171 static struct lp5521_platform_data __initdata lp5521_sec_data = {
 172        .label = "lp5521_sec",
 173        .led_config     = &lp5521_sec_led[0],
 174        .num_channels   = 3,
 175        .clock_mode     = LP5521_CLOCK_EXT,
 176 };
 177
 178 static struct i2c_board_info __initdata mop500_i2c0_devices[] = {
 179         {
 180                 I2C_BOARD_INFO("tc3589x", 0x42),
 181                 .irq            = NOMADIK_GPIO_TO_IRQ(217),
 182                 .platform_data  = &mop500_tc35892_data,
 183         },
 184         /* I2C0 devices only available prior to HREFv60 */
 185         {
 186                 I2C_BOARD_INFO("tps61052", 0x33),
 187                 .platform_data  = &mop500_tps61052_data,
 188         },
 189 };
 190
 191 #define NUM_PRE_V60_I2C0_DEVICES 1
 192
 193 static struct i2c_board_info __initdata mop500_i2c2_devices[] = {
 194         {
 195                 /* lp5521 LED driver, 1st device */
 196                 I2C_BOARD_INFO("lp5521", 0x33),
 197                 .platform_data = &lp5521_pri_data,
 198         },
 199         {
 200                 /* lp5521 LED driver, 2st device */
 201                 I2C_BOARD_INFO("lp5521", 0x34),
 202                 .platform_data = &lp5521_sec_data,
 203         },
 204         {
 205                 /* Light sensor Rohm BH1780GLI */
 206                 I2C_BOARD_INFO("bh1780", 0x29),
 207         },
 208 };
 209
 210 #define U8500_I2C_CONTROLLER(id, _slsu, _tft, _rft, clk, t_out, _sm)    \
 211 static struct nmk_i2c_controller u8500_i2c##id##_data = { \
 212         /*                              \
 213          * slave data setup time, which is      \
 214          * 250 ns,100ns,10ns which is 14,6,2    \
 215          * respectively for a 48 Mhz    \
 216          * i2c clock                    \
 217          */                             \
 218         .slsu           = _slsu,        \
 219         /* Tx FIFO threshold */         \
 220         .tft            = _tft,         \
 221         /* Rx FIFO threshold */         \
 222         .rft            = _rft,         \
 223         /* std. mode operation */       \
 224         .clk_freq       = clk,          \
 225         /* Slave response timeout(ms) */\
 226         .timeout        = t_out,        \
 227         .sm             = _sm,          \
 228 }
 229
 230 /*
 231  * The board uses 4 i2c controllers, initialize all of
 232  * them with slave data setup time of 250 ns,
 233  * Tx & Rx FIFO threshold values as 8 and standard
 234  * mode of operation
 235  */
 236 U8500_I2C_CONTROLLER(0, 0xe, 1, 8, 100000, 200, I2C_FREQ_MODE_FAST);
 237 U8500_I2C_CONTROLLER(1, 0xe, 1, 8, 100000, 200, I2C_FREQ_MODE_FAST);
 238 U8500_I2C_CONTROLLER(2, 0xe, 1, 8, 100000, 200, I2C_FREQ_MODE_FAST);
 239 U8500_I2C_CONTROLLER(3, 0xe, 1, 8, 100000, 200, I2C_FREQ_MODE_FAST);
 240
 241 static void __init mop500_i2c_init(void)
 242 {
 243         db8500_add_i2c0(&u8500_i2c0_data);
 244         db8500_add_i2c1(&u8500_i2c1_data);
 245         db8500_add_i2c2(&u8500_i2c2_data);
 246         db8500_add_i2c3(&u8500_i2c3_data);
 247 }
 248
 249 static struct gpio_keys_button mop500_gpio_keys[] = {
 250         {
 251                 .desc                   = "SFH7741 Proximity Sensor",
 252                 .type                   = EV_SW,
 253                 .code                   = SW_FRONT_PROXIMITY,
 254                 .active_low             = 0,
 255                 .can_disable            = 1,
 256         }
 257 };
 258
 259 static struct regulator *prox_regulator;
 260 static int mop500_prox_activate(struct device *dev);
 261 static void mop500_prox_deactivate(struct device *dev);
 262
 263 static struct gpio_keys_platform_data mop500_gpio_keys_data = {
 264         .buttons        = mop500_gpio_keys,
 265         .nbuttons       = ARRAY_SIZE(mop500_gpio_keys),
 266         .enable         = mop500_prox_activate,
 267         .disable        = mop500_prox_deactivate,
 268 };
 269
 270 static struct platform_device mop500_gpio_keys_device = {
 271         .name   = "gpio-keys",
 272         .id     = 0,
 273         .dev    = {
 274                 .platform_data  = &mop500_gpio_keys_data,
 275         },
 276 };
 277
 278 static int mop500_prox_activate(struct device *dev)
 279 {
 280         prox_regulator = regulator_get(&mop500_gpio_keys_device.dev,
 281                                                 "vcc");
 282         if (IS_ERR(prox_regulator)) {
 283                 dev_err(&mop500_gpio_keys_device.dev,
 284                         "no regulator\n");
 285                 return PTR_ERR(prox_regulator);
 286         }
 287         regulator_enable(prox_regulator);
 288         return 0;
 289 }
 290
 291 static void mop500_prox_deactivate(struct device *dev)
 292 {
 293         regulator_disable(prox_regulator);
 294         regulator_put(prox_regulator);
 295 }
 296
 297 /* add any platform devices here - TODO */
 298 static struct platform_device *platform_devs[] __initdata = {
 299         &mop500_gpio_keys_device,
 300 };
 301
 302 #ifdef CONFIG_STE_DMA40
 303 static struct stedma40_chan_cfg ssp0_dma_cfg_rx = {
 304         .mode = STEDMA40_MODE_LOGICAL,
 305         .dir = STEDMA40_PERIPH_TO_MEM,
 306         .src_dev_type =  DB8500_DMA_DEV8_SSP0_RX,
 307         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
 308         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 309         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 310 };
 311
 312 static struct stedma40_chan_cfg ssp0_dma_cfg_tx = {
 313         .mode = STEDMA40_MODE_LOGICAL,
 314         .dir = STEDMA40_MEM_TO_PERIPH,
 315         .src_dev_type = STEDMA40_DEV_SRC_MEMORY,
 316         .dst_dev_type = DB8500_DMA_DEV8_SSP0_TX,
 317         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 318         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 319 };
 320 #endif
 321
 322 static struct pl022_ssp_controller ssp0_platform_data = {
 323         .bus_id = 0,
 324 #ifdef CONFIG_STE_DMA40
 325         .enable_dma = 1,
 326         .dma_filter = stedma40_filter,
 327         .dma_rx_param = &ssp0_dma_cfg_rx,
 328         .dma_tx_param = &ssp0_dma_cfg_tx,
 329 #else
 330         .enable_dma = 0,
 331 #endif
 332         /* on this platform, gpio 31,142,144,214 &
 333          * 224 are connected as chip selects
 334          */
 335         .num_chipselect = 5,
 336 };
 337
 338 static void __init mop500_spi_init(void)
 339 {
 340         db8500_add_ssp0(&ssp0_platform_data);
 341 }
 342
 343 #ifdef CONFIG_STE_DMA40
 344 static struct stedma40_chan_cfg uart0_dma_cfg_rx = {
 345         .mode = STEDMA40_MODE_LOGICAL,
 346         .dir = STEDMA40_PERIPH_TO_MEM,
 347         .src_dev_type =  DB8500_DMA_DEV13_UART0_RX,
 348         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
 349         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 350         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 351 };
 352
 353 static struct stedma40_chan_cfg uart0_dma_cfg_tx = {
 354         .mode = STEDMA40_MODE_LOGICAL,
 355         .dir = STEDMA40_MEM_TO_PERIPH,
 356         .src_dev_type = STEDMA40_DEV_SRC_MEMORY,
 357         .dst_dev_type = DB8500_DMA_DEV13_UART0_TX,
 358         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 359         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 360 };
 361
 362 static struct stedma40_chan_cfg uart1_dma_cfg_rx = {
 363         .mode = STEDMA40_MODE_LOGICAL,
 364         .dir = STEDMA40_PERIPH_TO_MEM,
 365         .src_dev_type =  DB8500_DMA_DEV12_UART1_RX,
 366         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
 367         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 368         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 369 };
 370
 371 static struct stedma40_chan_cfg uart1_dma_cfg_tx = {
 372         .mode = STEDMA40_MODE_LOGICAL,
 373         .dir = STEDMA40_MEM_TO_PERIPH,
 374         .src_dev_type = STEDMA40_DEV_SRC_MEMORY,
 375         .dst_dev_type = DB8500_DMA_DEV12_UART1_TX,
 376         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 377         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 378 };
 379
 380 static struct stedma40_chan_cfg uart2_dma_cfg_rx = {
 381         .mode = STEDMA40_MODE_LOGICAL,
 382         .dir = STEDMA40_PERIPH_TO_MEM,
 383         .src_dev_type =  DB8500_DMA_DEV11_UART2_RX,
 384         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
 385         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 386         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 387 };
 388
 389 static struct stedma40_chan_cfg uart2_dma_cfg_tx = {
 390         .mode = STEDMA40_MODE_LOGICAL,
 391         .dir = STEDMA40_MEM_TO_PERIPH,
 392         .src_dev_type = STEDMA40_DEV_SRC_MEMORY,
 393         .dst_dev_type = DB8500_DMA_DEV11_UART2_TX,
 394         .src_info.data_width = STEDMA40_BYTE_WIDTH,
 395         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 396 };
 397 #endif
 398
 399
 400 static pin_cfg_t mop500_pins_uart0[] = {
 401         GPIO0_U0_CTSn   | PIN_INPUT_PULLUP,
 402         GPIO1_U0_RTSn   | PIN_OUTPUT_HIGH,
 403         GPIO2_U0_RXD    | PIN_INPUT_PULLUP,
 404         GPIO3_U0_TXD    | PIN_OUTPUT_HIGH,
 405 };
 406
 407 #define PRCC_K_SOFTRST_SET      0x18
 408 #define PRCC_K_SOFTRST_CLEAR    0x1C
 409 static void ux500_uart0_reset(void)
 410 {
 411         void __iomem *prcc_rst_set, *prcc_rst_clr;
 412
 413         prcc_rst_set = (void __iomem *)IO_ADDRESS(U8500_CLKRST1_BASE +
 414                         PRCC_K_SOFTRST_SET);
 415         prcc_rst_clr = (void __iomem *)IO_ADDRESS(U8500_CLKRST1_BASE +
 416                         PRCC_K_SOFTRST_CLEAR);
 417
 418         /* Activate soft reset PRCC_K_SOFTRST_CLEAR */
 419         writel((readl(prcc_rst_clr) | 0x1), prcc_rst_clr);
 420         udelay(1);
 421
 422         /* Release soft reset PRCC_K_SOFTRST_SET */
 423         writel((readl(prcc_rst_set) | 0x1), prcc_rst_set);
 424         udelay(1);
 425 }
 426
 427 static void ux500_uart0_init(void)
 428 {
 429         int ret;
 430
 431         ret = nmk_config_pins(mop500_pins_uart0,
 432                         ARRAY_SIZE(mop500_pins_uart0));
 433         if (ret < 0)
 434                 pr_err("pl011: uart pins_enable failed\n");
 435 }
 436
 437 static void ux500_uart0_exit(void)
 438 {
 439         int ret;
 440
 441         ret = nmk_config_pins_sleep(mop500_pins_uart0,
 442                         ARRAY_SIZE(mop500_pins_uart0));
 443         if (ret < 0)
 444                 pr_err("pl011: uart pins_disable failed\n");
 445 }
 446
 447 static struct amba_pl011_data uart0_plat = {
 448 #ifdef CONFIG_STE_DMA40
 449         .dma_filter = stedma40_filter,
 450         .dma_rx_param = &uart0_dma_cfg_rx,
 451         .dma_tx_param = &uart0_dma_cfg_tx,
 452 #endif
 453         .init = ux500_uart0_init,
 454         .exit = ux500_uart0_exit,
 455         .reset = ux500_uart0_reset,
 456 };
 457
 458 static struct amba_pl011_data uart1_plat = {
 459 #ifdef CONFIG_STE_DMA40
 460         .dma_filter = stedma40_filter,
 461         .dma_rx_param = &uart1_dma_cfg_rx,
 462         .dma_tx_param = &uart1_dma_cfg_tx,
 463 #endif
 464 };
 465
 466 static struct amba_pl011_data uart2_plat = {
 467 #ifdef CONFIG_STE_DMA40
 468         .dma_filter = stedma40_filter,
 469         .dma_rx_param = &uart2_dma_cfg_rx,
 470         .dma_tx_param = &uart2_dma_cfg_tx,
 471 #endif
 472 };
 473
 474 static void __init mop500_uart_init(void)
 475 {
 476         db8500_add_uart0(&uart0_plat);
 477         db8500_add_uart1(&uart1_plat);
 478         db8500_add_uart2(&uart2_plat);
 479 }
 480
 481 static void __init mop500_init_machine(void)
 482 {
 483         int i2c0_devs;
 484
 485         /*
 486          * The HREFv60 board removed a GPIO expander and routed
 487          * all these GPIO pins to the internal GPIO controller
 488          * instead.
 489          */
 490         if (machine_is_hrefv60())
 491                 mop500_gpio_keys[0].gpio = HREFV60_PROX_SENSE_GPIO;
 492         else
 493                 mop500_gpio_keys[0].gpio = GPIO_PROX_SENSOR;
 494
 495         u8500_init_devices();
 496
 497         mop500_pins_init();
 498
 499         platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
 500
 501         mop500_i2c_init();
 502         mop500_sdi_init();
 503         mop500_spi_init();
 504         mop500_uart_init();
 505
 506         platform_device_register(&ab8500_device);
 507
 508         i2c0_devs = ARRAY_SIZE(mop500_i2c0_devices);
 509         if (machine_is_hrefv60())
 510                 i2c0_devs -= NUM_PRE_V60_I2C0_DEVICES;
 511
 512         i2c_register_board_info(0, mop500_i2c0_devices, i2c0_devs);
 513         i2c_register_board_info(2, mop500_i2c2_devices,
 514                                 ARRAY_SIZE(mop500_i2c2_devices));
 515 }
 516
 517 MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
 518         /* Maintainer: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> */
 519         .boot_params    = 0x100,
 520         .map_io         = u8500_map_io,
 521         .init_irq       = ux500_init_irq,
 522         /* we re-use nomadik timer here */
 523         .timer          = &ux500_timer,
 524         .init_machine   = mop500_init_machine,
 525 MACHINE_END
 526
 527 MACHINE_START(HREFV60, "ST-Ericsson U8500 Platform HREFv60+")
 528         .boot_params    = 0x100,
 529         .map_io         = u8500_map_io,
 530         .init_irq       = ux500_init_irq,
 531         .timer          = &ux500_timer,
 532         .init_machine   = mop500_init_machine,
 533 MACHINE_END