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 = omap1_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 300