arm/mach-omap1/board-nokia770.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * linux/arch/arm/mach-omap1/board-nokia770.c
0004  *
0005  * Modified from board-generic.c
0006  */
0007 #include <linux/clkdev.h>
0008 #include <linux/irq.h>
0009 #include <linux/gpio.h>
0010 #include <linux/gpio/machine.h>
0011 #include <linux/kernel.h>
0012 #include <linux/init.h>
0013 #include <linux/mutex.h>
0014 #include <linux/platform_device.h>
0015 #include <linux/input.h>
0016 #include <linux/omapfb.h>
0017
0018 #include <linux/spi/spi.h>
0019 #include <linux/spi/ads7846.h>
0020 #include <linux/workqueue.h>
0021 #include <linux/delay.h>
0022
0023 #include <linux/platform_data/keypad-omap.h>
0024 #include <linux/platform_data/lcd-mipid.h>
0025 #include <linux/platform_data/gpio-omap.h>
0026
0027 #include <asm/mach-types.h>
0028 #include <asm/mach/arch.h>
0029 #include <asm/mach/map.h>
0030
0031 #include "mux.h"
0032 #include "hardware.h"
0033 #include "usb.h"
0034 #include "common.h"
0035 #include "clock.h"
0036 #include "mmc.h"
0037
0038 #define ADS7846_PENDOWN_GPIO    15
0039
0040 static const unsigned int nokia770_keymap[] = {
0041     KEY(1, 0, GROUP_0 | KEY_UP),
0042     KEY(2, 0, GROUP_1 | KEY_F5),
0043     KEY(0, 1, GROUP_0 | KEY_LEFT),
0044     KEY(1, 1, GROUP_0 | KEY_ENTER),
0045     KEY(2, 1, GROUP_0 | KEY_RIGHT),
0046     KEY(0, 2, GROUP_1 | KEY_ESC),
0047     KEY(1, 2, GROUP_0 | KEY_DOWN),
0048     KEY(2, 2, GROUP_1 | KEY_F4),
0049     KEY(0, 3, GROUP_2 | KEY_F7),
0050     KEY(1, 3, GROUP_2 | KEY_F8),
0051     KEY(2, 3, GROUP_2 | KEY_F6),
0052 };
0053
0054 static struct resource nokia770_kp_resources[] = {
0055     [0] = {
0056         .start  = INT_KEYBOARD,
0057         .end    = INT_KEYBOARD,
0058         .flags  = IORESOURCE_IRQ,
0059     },
0060 };
0061
0062 static const struct matrix_keymap_data nokia770_keymap_data = {
0063     .keymap     = nokia770_keymap,
0064     .keymap_size    = ARRAY_SIZE(nokia770_keymap),
0065 };
0066
0067 static struct omap_kp_platform_data nokia770_kp_data = {
0068     .rows       = 8,
0069     .cols       = 8,
0070     .keymap_data    = &nokia770_keymap_data,
0071     .delay      = 4,
0072 };
0073
0074 static struct platform_device nokia770_kp_device = {
0075     .name       = "omap-keypad",
0076     .id     = -1,
0077     .dev        = {
0078         .platform_data = &nokia770_kp_data,
0079     },
0080     .num_resources  = ARRAY_SIZE(nokia770_kp_resources),
0081     .resource   = nokia770_kp_resources,
0082 };
0083
0084 static struct platform_device *nokia770_devices[] __initdata = {
0085     &nokia770_kp_device,
0086 };
0087
0088 static void mipid_shutdown(struct mipid_platform_data *pdata)
0089 {
0090     if (pdata->nreset_gpio != -1) {
0091         printk(KERN_INFO "shutdown LCD\n");
0092         gpio_set_value(pdata->nreset_gpio, 0);
0093         msleep(120);
0094     }
0095 }
0096
0097 static struct mipid_platform_data nokia770_mipid_platform_data = {
0098     .shutdown = mipid_shutdown,
0099 };
0100
0101 static const struct omap_lcd_config nokia770_lcd_config __initconst = {
0102     .ctrl_name  = "hwa742",
0103 };
0104
0105 static void __init mipid_dev_init(void)
0106 {
0107     nokia770_mipid_platform_data.nreset_gpio = 13;
0108     nokia770_mipid_platform_data.data_lines = 16;
0109
0110     omapfb_set_lcd_config(&nokia770_lcd_config);
0111 }
0112
0113 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
0114     .x_max      = 0x0fff,
0115     .y_max      = 0x0fff,
0116     .x_plate_ohms   = 180,
0117     .pressure_max   = 255,
0118     .debounce_max   = 10,
0119     .debounce_tol   = 3,
0120     .debounce_rep   = 1,
0121     .gpio_pendown   = ADS7846_PENDOWN_GPIO,
0122 };
0123
0124 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
0125     [0] = {
0126         .modalias       = "lcd_mipid",
0127         .bus_num        = 2,
0128         .chip_select    = 3,
0129         .max_speed_hz   = 12000000,
0130         .platform_data  = &nokia770_mipid_platform_data,
0131     },
0132     [1] = {
0133         .modalias       = "ads7846",
0134         .bus_num        = 2,
0135         .chip_select    = 0,
0136         .max_speed_hz   = 2500000,
0137         .platform_data  = &nokia770_ads7846_platform_data,
0138     },
0139 };
0140
0141 static void __init hwa742_dev_init(void)
0142 {
0143     clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
0144 }
0145
0146 /* assume no Mini-AB port */
0147
0148 static struct omap_usb_config nokia770_usb_config __initdata = {
0149     .otg        = 1,
0150     .register_host  = 1,
0151     .register_dev   = 1,
0152     .hmc_mode   = 16,
0153     .pins[0]    = 6,
0154     .extcon     = "tahvo-usb",
0155 };
0156
0157 #if IS_ENABLED(CONFIG_MMC_OMAP)
0158
0159 #define NOKIA770_GPIO_MMC_POWER     41
0160 #define NOKIA770_GPIO_MMC_SWITCH    23
0161
0162 static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
0163                 int vdd)
0164 {
0165     gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
0166     return 0;
0167 }
0168
0169 static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
0170 {
0171     return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
0172 }
0173
0174 static struct omap_mmc_platform_data nokia770_mmc2_data = {
0175     .nr_slots                       = 1,
0176     .max_freq                       = 12000000,
0177     .slots[0]       = {
0178         .set_power      = nokia770_mmc_set_power,
0179         .get_cover_state    = nokia770_mmc_get_cover_state,
0180         .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
0181         .name                   = "mmcblk",
0182     },
0183 };
0184
0185 static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
0186
0187 static void __init nokia770_mmc_init(void)
0188 {
0189     int ret;
0190
0191     ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
0192     if (ret < 0)
0193         return;
0194     gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
0195
0196     ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
0197     if (ret < 0) {
0198         gpio_free(NOKIA770_GPIO_MMC_POWER);
0199         return;
0200     }
0201     gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
0202
0203     /* Only the second MMC controller is used */
0204     nokia770_mmc_data[1] = &nokia770_mmc2_data;
0205     omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
0206 }
0207
0208 #else
0209 static inline void nokia770_mmc_init(void)
0210 {
0211 }
0212 #endif
0213
0214 #if IS_ENABLED(CONFIG_I2C_CBUS_GPIO)
0215 static struct gpiod_lookup_table nokia770_cbus_gpio_table = {
0216     .dev_id = "i2c-cbus-gpio.2",
0217     .table = {
0218         GPIO_LOOKUP_IDX("mpuio", 9, NULL, 0, 0), /* clk */
0219         GPIO_LOOKUP_IDX("mpuio", 10, NULL, 1, 0), /* dat */
0220         GPIO_LOOKUP_IDX("mpuio", 11, NULL, 2, 0), /* sel */
0221         { },
0222     },
0223 };
0224
0225 static struct platform_device nokia770_cbus_device = {
0226     .name   = "i2c-cbus-gpio",
0227     .id     = 2,
0228 };
0229
0230 static struct i2c_board_info nokia770_i2c_board_info_2[] __initdata = {
0231     {
0232         I2C_BOARD_INFO("retu", 0x01),
0233     },
0234     {
0235         I2C_BOARD_INFO("tahvo", 0x02),
0236     },
0237 };
0238
0239 static void __init nokia770_cbus_init(void)
0240 {
0241     const int retu_irq_gpio = 62;
0242     const int tahvo_irq_gpio = 40;
0243
0244     if (gpio_request_one(retu_irq_gpio, GPIOF_IN, "Retu IRQ"))
0245         return;
0246     if (gpio_request_one(tahvo_irq_gpio, GPIOF_IN, "Tahvo IRQ")) {
0247         gpio_free(retu_irq_gpio);
0248         return;
0249     }
0250     irq_set_irq_type(gpio_to_irq(retu_irq_gpio), IRQ_TYPE_EDGE_RISING);
0251     irq_set_irq_type(gpio_to_irq(tahvo_irq_gpio), IRQ_TYPE_EDGE_RISING);
0252     nokia770_i2c_board_info_2[0].irq = gpio_to_irq(retu_irq_gpio);
0253     nokia770_i2c_board_info_2[1].irq = gpio_to_irq(tahvo_irq_gpio);
0254     i2c_register_board_info(2, nokia770_i2c_board_info_2,
0255                 ARRAY_SIZE(nokia770_i2c_board_info_2));
0256     gpiod_add_lookup_table(&nokia770_cbus_gpio_table);
0257     platform_device_register(&nokia770_cbus_device);
0258 }
0259 #else /* CONFIG_I2C_CBUS_GPIO */
0260 static void __init nokia770_cbus_init(void)
0261 {
0262 }
0263 #endif /* CONFIG_I2C_CBUS_GPIO */
0264
0265 static void __init omap_nokia770_init(void)
0266 {
0267     /* On Nokia 770, the SleepX signal is masked with an
0268      * MPUIO line by default.  It has to be unmasked for it
0269      * to become functional */
0270
0271     /* SleepX mask direction */
0272     omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
0273     /* Unmask SleepX signal */
0274     omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
0275
0276     platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
0277     nokia770_spi_board_info[1].irq = gpio_to_irq(15);
0278     spi_register_board_info(nokia770_spi_board_info,
0279                 ARRAY_SIZE(nokia770_spi_board_info));
0280     omap_serial_init();
0281     omap_register_i2c_bus(1, 100, NULL, 0);
0282     hwa742_dev_init();
0283     mipid_dev_init();
0284     omap1_usb_init(&nokia770_usb_config);
0285     nokia770_mmc_init();
0286     nokia770_cbus_init();
0287 }
0288
0289 MACHINE_START(NOKIA770, "Nokia 770")
0290     .atag_offset    = 0x100,
0291     .map_io     = omap16xx_map_io,
0292     .init_early     = omap1_init_early,
0293     .init_irq   = omap1_init_irq,
0294     .handle_irq = omap1_handle_irq,
0295     .init_machine   = omap_nokia770_init,
0296     .init_late  = omap1_init_late,
0297     .init_time  = omap1_timer_init,
0298     .restart    = omap1_restart,
0299 MACHINE_END