arch/arm/mach-omap1/board-nokia770.c

   1 /*
   2  * linux/arch/arm/mach-omap1/board-nokia770.c
   3  *
   4  * Modified from board-generic.c
   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 #include <linux/clkdev.h>
  11 #include <linux/irq.h>
  12 #include <linux/gpio.h>
  13 #include <linux/kernel.h>
  14 #include <linux/init.h>
  15 #include <linux/mutex.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/input.h>
  18 #include <linux/omapfb.h>
  19
  20 #include <linux/spi/spi.h>
  21 #include <linux/spi/ads7846.h>
  22 #include <linux/workqueue.h>
  23 #include <linux/delay.h>
  24
  25 #include <linux/platform_data/keypad-omap.h>
  26 #include <linux/platform_data/lcd-mipid.h>
  27 #include <linux/platform_data/gpio-omap.h>
  28 #include <linux/platform_data/i2c-cbus-gpio.h>
  29
  30 #include <asm/mach-types.h>
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/map.h>
  33
  34 #include <mach/mux.h>
  35
  36 #include <mach/hardware.h>
  37 #include <mach/usb.h>
  38
  39 #include "common.h"
  40 #include "clock.h"
  41 #include "mmc.h"
  42
  43 #define ADS7846_PENDOWN_GPIO    15
  44
  45 static const unsigned int nokia770_keymap[] = {
  46         KEY(1, 0, GROUP_0 | KEY_UP),
  47         KEY(2, 0, GROUP_1 | KEY_F5),
  48         KEY(0, 1, GROUP_0 | KEY_LEFT),
  49         KEY(1, 1, GROUP_0 | KEY_ENTER),
  50         KEY(2, 1, GROUP_0 | KEY_RIGHT),
  51         KEY(0, 2, GROUP_1 | KEY_ESC),
  52         KEY(1, 2, GROUP_0 | KEY_DOWN),
  53         KEY(2, 2, GROUP_1 | KEY_F4),
  54         KEY(0, 3, GROUP_2 | KEY_F7),
  55         KEY(1, 3, GROUP_2 | KEY_F8),
  56         KEY(2, 3, GROUP_2 | KEY_F6),
  57 };
  58
  59 static struct resource nokia770_kp_resources[] = {
  60         [0] = {
  61                 .start  = INT_KEYBOARD,
  62                 .end    = INT_KEYBOARD,
  63                 .flags  = IORESOURCE_IRQ,
  64         },
  65 };
  66
  67 static const struct matrix_keymap_data nokia770_keymap_data = {
  68         .keymap         = nokia770_keymap,
  69         .keymap_size    = ARRAY_SIZE(nokia770_keymap),
  70 };
  71
  72 static struct omap_kp_platform_data nokia770_kp_data = {
  73         .rows           = 8,
  74         .cols           = 8,
  75         .keymap_data    = &nokia770_keymap_data,
  76         .delay          = 4,
  77 };
  78
  79 static struct platform_device nokia770_kp_device = {
  80         .name           = "omap-keypad",
  81         .id             = -1,
  82         .dev            = {
  83                 .platform_data = &nokia770_kp_data,
  84         },
  85         .num_resources  = ARRAY_SIZE(nokia770_kp_resources),
  86         .resource       = nokia770_kp_resources,
  87 };
  88
  89 static struct platform_device *nokia770_devices[] __initdata = {
  90         &nokia770_kp_device,
  91 };
  92
  93 static void mipid_shutdown(struct mipid_platform_data *pdata)
  94 {
  95         if (pdata->nreset_gpio != -1) {
  96                 printk(KERN_INFO "shutdown LCD\n");
  97                 gpio_set_value(pdata->nreset_gpio, 0);
  98                 msleep(120);
  99         }
 100 }
 101
 102 static struct mipid_platform_data nokia770_mipid_platform_data = {
 103         .shutdown = mipid_shutdown,
 104 };
 105
 106 static struct omap_lcd_config nokia770_lcd_config __initdata = {
 107         .ctrl_name      = "hwa742",
 108 };
 109
 110 static void __init mipid_dev_init(void)
 111 {
 112         nokia770_mipid_platform_data.nreset_gpio = 13;
 113         nokia770_mipid_platform_data.data_lines = 16;
 114
 115         omapfb_set_lcd_config(&nokia770_lcd_config);
 116 }
 117
 118 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
 119         .x_max          = 0x0fff,
 120         .y_max          = 0x0fff,
 121         .x_plate_ohms   = 180,
 122         .pressure_max   = 255,
 123         .debounce_max   = 10,
 124         .debounce_tol   = 3,
 125         .debounce_rep   = 1,
 126         .gpio_pendown   = ADS7846_PENDOWN_GPIO,
 127 };
 128
 129 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
 130         [0] = {
 131                 .modalias       = "lcd_mipid",
 132                 .bus_num        = 2,
 133                 .chip_select    = 3,
 134                 .max_speed_hz   = 12000000,
 135                 .platform_data  = &nokia770_mipid_platform_data,
 136         },
 137         [1] = {
 138                 .modalias       = "ads7846",
 139                 .bus_num        = 2,
 140                 .chip_select    = 0,
 141                 .max_speed_hz   = 2500000,
 142                 .platform_data  = &nokia770_ads7846_platform_data,
 143         },
 144 };
 145
 146 static void __init hwa742_dev_init(void)
 147 {
 148         clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
 149 }
 150
 151 /* assume no Mini-AB port */
 152
 153 static struct omap_usb_config nokia770_usb_config __initdata = {
 154         .otg            = 1,
 155         .register_host  = 1,
 156         .register_dev   = 1,
 157         .hmc_mode       = 16,
 158         .pins[0]        = 6,
 159         .extcon         = "tahvo-usb",
 160 };
 161
 162 #if IS_ENABLED(CONFIG_MMC_OMAP)
 163
 164 #define NOKIA770_GPIO_MMC_POWER         41
 165 #define NOKIA770_GPIO_MMC_SWITCH        23
 166
 167 static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
 168                                 int vdd)
 169 {
 170         gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
 171         return 0;
 172 }
 173
 174 static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
 175 {
 176         return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
 177 }
 178
 179 static struct omap_mmc_platform_data nokia770_mmc2_data = {
 180         .nr_slots                       = 1,
 181         .max_freq                       = 12000000,
 182         .slots[0]       = {
 183                 .set_power              = nokia770_mmc_set_power,
 184                 .get_cover_state        = nokia770_mmc_get_cover_state,
 185                 .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
 186                 .name                   = "mmcblk",
 187         },
 188 };
 189
 190 static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
 191
 192 static void __init nokia770_mmc_init(void)
 193 {
 194         int ret;
 195
 196         ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
 197         if (ret < 0)
 198                 return;
 199         gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
 200
 201         ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
 202         if (ret < 0) {
 203                 gpio_free(NOKIA770_GPIO_MMC_POWER);
 204                 return;
 205         }
 206         gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
 207
 208         /* Only the second MMC controller is used */
 209         nokia770_mmc_data[1] = &nokia770_mmc2_data;
 210         omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
 211 }
 212
 213 #else
 214 static inline void nokia770_mmc_init(void)
 215 {
 216 }
 217 #endif
 218
 219 #if IS_ENABLED(CONFIG_I2C_CBUS_GPIO)
 220 static struct i2c_cbus_platform_data nokia770_cbus_data = {
 221         .clk_gpio = OMAP_MPUIO(9),
 222         .dat_gpio = OMAP_MPUIO(10),
 223         .sel_gpio = OMAP_MPUIO(11),
 224 };
 225
 226 static struct platform_device nokia770_cbus_device = {
 227         .name   = "i2c-cbus-gpio",
 228         .id     = 2,
 229         .dev    = {
 230                 .platform_data = &nokia770_cbus_data,
 231         },
 232 };
 233
 234 static struct i2c_board_info nokia770_i2c_board_info_2[] __initdata = {
 235         {
 236                 I2C_BOARD_INFO("retu-mfd", 0x01),
 237         },
 238         {
 239                 I2C_BOARD_INFO("tahvo-mfd", 0x02),
 240         },
 241 };
 242
 243 static void __init nokia770_cbus_init(void)
 244 {
 245         const int retu_irq_gpio = 62;
 246         const int tahvo_irq_gpio = 40;
 247
 248         if (gpio_request_one(retu_irq_gpio, GPIOF_IN, "Retu IRQ"))
 249                 return;
 250         if (gpio_request_one(tahvo_irq_gpio, GPIOF_IN, "Tahvo IRQ")) {
 251                 gpio_free(retu_irq_gpio);
 252                 return;
 253         }
 254         irq_set_irq_type(gpio_to_irq(retu_irq_gpio), IRQ_TYPE_EDGE_RISING);
 255         irq_set_irq_type(gpio_to_irq(tahvo_irq_gpio), IRQ_TYPE_EDGE_RISING);
 256         nokia770_i2c_board_info_2[0].irq = gpio_to_irq(retu_irq_gpio);
 257         nokia770_i2c_board_info_2[1].irq = gpio_to_irq(tahvo_irq_gpio);
 258         i2c_register_board_info(2, nokia770_i2c_board_info_2,
 259                                 ARRAY_SIZE(nokia770_i2c_board_info_2));
 260         platform_device_register(&nokia770_cbus_device);
 261 }
 262 #else /* CONFIG_I2C_CBUS_GPIO */
 263 static void __init nokia770_cbus_init(void)
 264 {
 265 }
 266 #endif /* CONFIG_I2C_CBUS_GPIO */
 267
 268 static void __init omap_nokia770_init(void)
 269 {
 270         /* On Nokia 770, the SleepX signal is masked with an
 271          * MPUIO line by default.  It has to be unmasked for it
 272          * to become functional */
 273
 274         /* SleepX mask direction */
 275         omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
 276         /* Unmask SleepX signal */
 277         omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
 278
 279         platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
 280         nokia770_spi_board_info[1].irq = gpio_to_irq(15);
 281         spi_register_board_info(nokia770_spi_board_info,
 282                                 ARRAY_SIZE(nokia770_spi_board_info));
 283         omap_serial_init();
 284         omap_register_i2c_bus(1, 100, NULL, 0);
 285         hwa742_dev_init();
 286         mipid_dev_init();
 287         omap1_usb_init(&nokia770_usb_config);
 288         nokia770_mmc_init();
 289         nokia770_cbus_init();
 290 }
 291
 292 MACHINE_START(NOKIA770, "Nokia 770")
 293         .atag_offset    = 0x100,
 294         .map_io         = omap16xx_map_io,
 295         .init_early     = omap1_init_early,
 296         .init_irq       = omap1_init_irq,
 297         .handle_irq     = omap1_handle_irq,
 298         .init_machine   = omap_nokia770_init,
 299         .init_late      = omap1_init_late,
 300         .init_time      = omap1_timer_init,
 301         .restart        = omap1_restart,
 302 MACHINE_END