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 const struct omap_lcd_config nokia770_lcd_config __initconst = { 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", 0x01), 237 }, 238 { 239 I2C_BOARD_INFO("tahvo", 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 303