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

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * linux/arch/arm/mach-omap1/board-nokia770.c
   4  *
   5  * Modified from board-generic.c
   6  */
   7 #include <linux/clkdev.h>
   8 #include <linux/irq.h>
   9 #include <linux/gpio.h>
  10 #include <linux/gpio/machine.h>
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/mutex.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/input.h>
  16 #include <linux/omapfb.h>
  17
  18 #include <linux/spi/spi.h>
  19 #include <linux/spi/ads7846.h>
  20 #include <linux/workqueue.h>
  21 #include <linux/delay.h>
  22
  23 #include <linux/platform_data/keypad-omap.h>
  24 #include <linux/platform_data/lcd-mipid.h>
  25 #include <linux/platform_data/gpio-omap.h>
  26
  27 #include <asm/mach-types.h>
  28 #include <asm/mach/arch.h>
  29 #include <asm/mach/map.h>
  30
  31 #include <mach/mux.h>
  32
  33 #include <mach/hardware.h>
  34 #include <mach/usb.h>
  35
  36 #include "common.h"
  37 #include "clock.h"
  38 #include "mmc.h"
  39
  40 #define ADS7846_PENDOWN_GPIO    15
  41
  42 static const unsigned int nokia770_keymap[] = {
  43         KEY(1, 0, GROUP_0 | KEY_UP),
  44         KEY(2, 0, GROUP_1 | KEY_F5),
  45         KEY(0, 1, GROUP_0 | KEY_LEFT),
  46         KEY(1, 1, GROUP_0 | KEY_ENTER),
  47         KEY(2, 1, GROUP_0 | KEY_RIGHT),
  48         KEY(0, 2, GROUP_1 | KEY_ESC),
  49         KEY(1, 2, GROUP_0 | KEY_DOWN),
  50         KEY(2, 2, GROUP_1 | KEY_F4),
  51         KEY(0, 3, GROUP_2 | KEY_F7),
  52         KEY(1, 3, GROUP_2 | KEY_F8),
  53         KEY(2, 3, GROUP_2 | KEY_F6),
  54 };
  55
  56 static struct resource nokia770_kp_resources[] = {
  57         [0] = {
  58                 .start  = INT_KEYBOARD,
  59                 .end    = INT_KEYBOARD,
  60                 .flags  = IORESOURCE_IRQ,
  61         },
  62 };
  63
  64 static const struct matrix_keymap_data nokia770_keymap_data = {
  65         .keymap         = nokia770_keymap,
  66         .keymap_size    = ARRAY_SIZE(nokia770_keymap),
  67 };
  68
  69 static struct omap_kp_platform_data nokia770_kp_data = {
  70         .rows           = 8,
  71         .cols           = 8,
  72         .keymap_data    = &nokia770_keymap_data,
  73         .delay          = 4,
  74 };
  75
  76 static struct platform_device nokia770_kp_device = {
  77         .name           = "omap-keypad",
  78         .id             = -1,
  79         .dev            = {
  80                 .platform_data = &nokia770_kp_data,
  81         },
  82         .num_resources  = ARRAY_SIZE(nokia770_kp_resources),
  83         .resource       = nokia770_kp_resources,
  84 };
  85
  86 static struct platform_device *nokia770_devices[] __initdata = {
  87         &nokia770_kp_device,
  88 };
  89
  90 static void mipid_shutdown(struct mipid_platform_data *pdata)
  91 {
  92         if (pdata->nreset_gpio != -1) {
  93                 printk(KERN_INFO "shutdown LCD\n");
  94                 gpio_set_value(pdata->nreset_gpio, 0);
  95                 msleep(120);
  96         }
  97 }
  98
  99 static struct mipid_platform_data nokia770_mipid_platform_data = {
 100         .shutdown = mipid_shutdown,
 101 };
 102
 103 static const struct omap_lcd_config nokia770_lcd_config __initconst = {
 104         .ctrl_name      = "hwa742",
 105 };
 106
 107 static void __init mipid_dev_init(void)
 108 {
 109         nokia770_mipid_platform_data.nreset_gpio = 13;
 110         nokia770_mipid_platform_data.data_lines = 16;
 111
 112         omapfb_set_lcd_config(&nokia770_lcd_config);
 113 }
 114
 115 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
 116         .x_max          = 0x0fff,
 117         .y_max          = 0x0fff,
 118         .x_plate_ohms   = 180,
 119         .pressure_max   = 255,
 120         .debounce_max   = 10,
 121         .debounce_tol   = 3,
 122         .debounce_rep   = 1,
 123         .gpio_pendown   = ADS7846_PENDOWN_GPIO,
 124 };
 125
 126 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
 127         [0] = {
 128                 .modalias       = "lcd_mipid",
 129                 .bus_num        = 2,
 130                 .chip_select    = 3,
 131                 .max_speed_hz   = 12000000,
 132                 .platform_data  = &nokia770_mipid_platform_data,
 133         },
 134         [1] = {
 135                 .modalias       = "ads7846",
 136                 .bus_num        = 2,
 137                 .chip_select    = 0,
 138                 .max_speed_hz   = 2500000,
 139                 .platform_data  = &nokia770_ads7846_platform_data,
 140         },
 141 };
 142
 143 static void __init hwa742_dev_init(void)
 144 {
 145         clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
 146 }
 147
 148 /* assume no Mini-AB port */
 149
 150 static struct omap_usb_config nokia770_usb_config __initdata = {
 151         .otg            = 1,
 152         .register_host  = 1,
 153         .register_dev   = 1,
 154         .hmc_mode       = 16,
 155         .pins[0]        = 6,
 156         .extcon         = "tahvo-usb",
 157 };
 158
 159 #if IS_ENABLED(CONFIG_MMC_OMAP)
 160
 161 #define NOKIA770_GPIO_MMC_POWER         41
 162 #define NOKIA770_GPIO_MMC_SWITCH        23
 163
 164 static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
 165                                 int vdd)
 166 {
 167         gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
 168         return 0;
 169 }
 170
 171 static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
 172 {
 173         return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
 174 }
 175
 176 static struct omap_mmc_platform_data nokia770_mmc2_data = {
 177         .nr_slots                       = 1,
 178         .max_freq                       = 12000000,
 179         .slots[0]       = {
 180                 .set_power              = nokia770_mmc_set_power,
 181                 .get_cover_state        = nokia770_mmc_get_cover_state,
 182                 .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
 183                 .name                   = "mmcblk",
 184         },
 185 };
 186
 187 static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
 188
 189 static void __init nokia770_mmc_init(void)
 190 {
 191         int ret;
 192
 193         ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
 194         if (ret < 0)
 195                 return;
 196         gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
 197
 198         ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
 199         if (ret < 0) {
 200                 gpio_free(NOKIA770_GPIO_MMC_POWER);
 201                 return;
 202         }
 203         gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
 204
 205         /* Only the second MMC controller is used */
 206         nokia770_mmc_data[1] = &nokia770_mmc2_data;
 207         omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
 208 }
 209
 210 #else
 211 static inline void nokia770_mmc_init(void)
 212 {
 213 }
 214 #endif
 215
 216 #if IS_ENABLED(CONFIG_I2C_CBUS_GPIO)
 217 static struct gpiod_lookup_table nokia770_cbus_gpio_table = {
 218         .dev_id = "i2c-cbus-gpio.2",
 219         .table = {
 220                 GPIO_LOOKUP_IDX("mpuio", 9, NULL, 0, 0), /* clk */
 221                 GPIO_LOOKUP_IDX("mpuio", 10, NULL, 1, 0), /* dat */
 222                 GPIO_LOOKUP_IDX("mpuio", 11, NULL, 2, 0), /* sel */
 223                 { },
 224         },
 225 };
 226
 227 static struct platform_device nokia770_cbus_device = {
 228         .name   = "i2c-cbus-gpio",
 229         .id     = 2,
 230 };
 231
 232 static struct i2c_board_info nokia770_i2c_board_info_2[] __initdata = {
 233         {
 234                 I2C_BOARD_INFO("retu", 0x01),
 235         },
 236         {
 237                 I2C_BOARD_INFO("tahvo", 0x02),
 238         },
 239 };
 240
 241 static void __init nokia770_cbus_init(void)
 242 {
 243         const int retu_irq_gpio = 62;
 244         const int tahvo_irq_gpio = 40;
 245
 246         if (gpio_request_one(retu_irq_gpio, GPIOF_IN, "Retu IRQ"))
 247                 return;
 248         if (gpio_request_one(tahvo_irq_gpio, GPIOF_IN, "Tahvo IRQ")) {
 249                 gpio_free(retu_irq_gpio);
 250                 return;
 251         }
 252         irq_set_irq_type(gpio_to_irq(retu_irq_gpio), IRQ_TYPE_EDGE_RISING);
 253         irq_set_irq_type(gpio_to_irq(tahvo_irq_gpio), IRQ_TYPE_EDGE_RISING);
 254         nokia770_i2c_board_info_2[0].irq = gpio_to_irq(retu_irq_gpio);
 255         nokia770_i2c_board_info_2[1].irq = gpio_to_irq(tahvo_irq_gpio);
 256         i2c_register_board_info(2, nokia770_i2c_board_info_2,
 257                                 ARRAY_SIZE(nokia770_i2c_board_info_2));
 258         gpiod_add_lookup_table(&nokia770_cbus_gpio_table);
 259         platform_device_register(&nokia770_cbus_device);
 260 }
 261 #else /* CONFIG_I2C_CBUS_GPIO */
 262 static void __init nokia770_cbus_init(void)
 263 {
 264 }
 265 #endif /* CONFIG_I2C_CBUS_GPIO */
 266
 267 static void __init omap_nokia770_init(void)
 268 {
 269         /* On Nokia 770, the SleepX signal is masked with an
 270          * MPUIO line by default.  It has to be unmasked for it
 271          * to become functional */
 272
 273         /* SleepX mask direction */
 274         omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
 275         /* Unmask SleepX signal */
 276         omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
 277
 278         platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
 279         nokia770_spi_board_info[1].irq = gpio_to_irq(15);
 280         spi_register_board_info(nokia770_spi_board_info,
 281                                 ARRAY_SIZE(nokia770_spi_board_info));
 282         omap_serial_init();
 283         omap_register_i2c_bus(1, 100, NULL, 0);
 284         hwa742_dev_init();
 285         mipid_dev_init();
 286         omap1_usb_init(&nokia770_usb_config);
 287         nokia770_mmc_init();
 288         nokia770_cbus_init();
 289 }
 290
 291 MACHINE_START(NOKIA770, "Nokia 770")
 292         .atag_offset    = 0x100,
 293         .map_io         = omap16xx_map_io,
 294         .init_early     = omap1_init_early,
 295         .init_irq       = omap1_init_irq,
 296         .handle_irq     = omap1_handle_irq,
 297         .init_machine   = omap_nokia770_init,
 298         .init_late      = omap1_init_late,
 299         .init_time      = omap1_timer_init,
 300         .restart        = omap1_restart,
 301 MACHINE_END