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