300 lines
7.3 KiB
C
300 lines
7.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* linux/arch/arm/mach-omap1/board-nokia770.c
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*
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* Modified from board-generic.c
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*/
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#include <linux/clkdev.h>
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#include <linux/irq.h>
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#include <linux/gpio.h>
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#include <linux/gpio/machine.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/mutex.h>
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#include <linux/platform_device.h>
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#include <linux/input.h>
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#include <linux/omapfb.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/ads7846.h>
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#include <linux/workqueue.h>
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#include <linux/delay.h>
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#include <linux/platform_data/keypad-omap.h>
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#include <linux/platform_data/lcd-mipid.h>
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#include <linux/platform_data/gpio-omap.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include "mux.h"
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#include "hardware.h"
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#include "usb.h"
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#include "common.h"
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#include "clock.h"
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#include "mmc.h"
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#define ADS7846_PENDOWN_GPIO 15
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static const unsigned int nokia770_keymap[] = {
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KEY(1, 0, GROUP_0 | KEY_UP),
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KEY(2, 0, GROUP_1 | KEY_F5),
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KEY(0, 1, GROUP_0 | KEY_LEFT),
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KEY(1, 1, GROUP_0 | KEY_ENTER),
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KEY(2, 1, GROUP_0 | KEY_RIGHT),
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KEY(0, 2, GROUP_1 | KEY_ESC),
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KEY(1, 2, GROUP_0 | KEY_DOWN),
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KEY(2, 2, GROUP_1 | KEY_F4),
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KEY(0, 3, GROUP_2 | KEY_F7),
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KEY(1, 3, GROUP_2 | KEY_F8),
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KEY(2, 3, GROUP_2 | KEY_F6),
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};
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static struct resource nokia770_kp_resources[] = {
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[0] = {
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.start = INT_KEYBOARD,
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.end = INT_KEYBOARD,
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.flags = IORESOURCE_IRQ,
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},
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};
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static const struct matrix_keymap_data nokia770_keymap_data = {
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.keymap = nokia770_keymap,
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.keymap_size = ARRAY_SIZE(nokia770_keymap),
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};
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static struct omap_kp_platform_data nokia770_kp_data = {
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.rows = 8,
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.cols = 8,
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.keymap_data = &nokia770_keymap_data,
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.delay = 4,
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};
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static struct platform_device nokia770_kp_device = {
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.name = "omap-keypad",
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.id = -1,
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.dev = {
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.platform_data = &nokia770_kp_data,
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},
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.num_resources = ARRAY_SIZE(nokia770_kp_resources),
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.resource = nokia770_kp_resources,
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};
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static struct platform_device *nokia770_devices[] __initdata = {
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&nokia770_kp_device,
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};
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static void mipid_shutdown(struct mipid_platform_data *pdata)
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{
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if (pdata->nreset_gpio != -1) {
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printk(KERN_INFO "shutdown LCD\n");
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gpio_set_value(pdata->nreset_gpio, 0);
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msleep(120);
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}
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}
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static struct mipid_platform_data nokia770_mipid_platform_data = {
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.shutdown = mipid_shutdown,
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};
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static const struct omap_lcd_config nokia770_lcd_config __initconst = {
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.ctrl_name = "hwa742",
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};
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static void __init mipid_dev_init(void)
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{
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nokia770_mipid_platform_data.nreset_gpio = 13;
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nokia770_mipid_platform_data.data_lines = 16;
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omapfb_set_lcd_config(&nokia770_lcd_config);
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}
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static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
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.x_max = 0x0fff,
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.y_max = 0x0fff,
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.x_plate_ohms = 180,
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.pressure_max = 255,
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.debounce_max = 10,
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.debounce_tol = 3,
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.debounce_rep = 1,
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.gpio_pendown = ADS7846_PENDOWN_GPIO,
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};
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static struct spi_board_info nokia770_spi_board_info[] __initdata = {
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[0] = {
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.modalias = "lcd_mipid",
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.bus_num = 2,
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.chip_select = 3,
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.max_speed_hz = 12000000,
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.platform_data = &nokia770_mipid_platform_data,
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},
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[1] = {
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.modalias = "ads7846",
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.bus_num = 2,
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.chip_select = 0,
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.max_speed_hz = 2500000,
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.platform_data = &nokia770_ads7846_platform_data,
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},
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};
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static void __init hwa742_dev_init(void)
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{
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clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
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}
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/* assume no Mini-AB port */
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static struct omap_usb_config nokia770_usb_config __initdata = {
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.otg = 1,
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.register_host = 1,
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.register_dev = 1,
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.hmc_mode = 16,
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.pins[0] = 6,
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.extcon = "tahvo-usb",
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};
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#if IS_ENABLED(CONFIG_MMC_OMAP)
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#define NOKIA770_GPIO_MMC_POWER 41
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#define NOKIA770_GPIO_MMC_SWITCH 23
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static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
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int vdd)
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{
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gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
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return 0;
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}
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static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
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{
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return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
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}
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static struct omap_mmc_platform_data nokia770_mmc2_data = {
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.nr_slots = 1,
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.max_freq = 12000000,
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.slots[0] = {
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.set_power = nokia770_mmc_set_power,
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.get_cover_state = nokia770_mmc_get_cover_state,
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.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
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.name = "mmcblk",
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},
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};
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static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
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static void __init nokia770_mmc_init(void)
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{
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int ret;
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ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
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if (ret < 0)
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return;
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gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
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ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
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if (ret < 0) {
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gpio_free(NOKIA770_GPIO_MMC_POWER);
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return;
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}
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gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
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/* Only the second MMC controller is used */
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nokia770_mmc_data[1] = &nokia770_mmc2_data;
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omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
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}
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#else
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static inline void nokia770_mmc_init(void)
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{
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}
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#endif
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#if IS_ENABLED(CONFIG_I2C_CBUS_GPIO)
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static struct gpiod_lookup_table nokia770_cbus_gpio_table = {
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.dev_id = "i2c-cbus-gpio.2",
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.table = {
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GPIO_LOOKUP_IDX("mpuio", 9, NULL, 0, 0), /* clk */
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GPIO_LOOKUP_IDX("mpuio", 10, NULL, 1, 0), /* dat */
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GPIO_LOOKUP_IDX("mpuio", 11, NULL, 2, 0), /* sel */
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{ },
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},
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};
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static struct platform_device nokia770_cbus_device = {
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.name = "i2c-cbus-gpio",
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.id = 2,
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};
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static struct i2c_board_info nokia770_i2c_board_info_2[] __initdata = {
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{
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I2C_BOARD_INFO("retu", 0x01),
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},
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{
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I2C_BOARD_INFO("tahvo", 0x02),
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},
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};
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static void __init nokia770_cbus_init(void)
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{
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const int retu_irq_gpio = 62;
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const int tahvo_irq_gpio = 40;
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if (gpio_request_one(retu_irq_gpio, GPIOF_IN, "Retu IRQ"))
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return;
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if (gpio_request_one(tahvo_irq_gpio, GPIOF_IN, "Tahvo IRQ")) {
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gpio_free(retu_irq_gpio);
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return;
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}
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irq_set_irq_type(gpio_to_irq(retu_irq_gpio), IRQ_TYPE_EDGE_RISING);
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irq_set_irq_type(gpio_to_irq(tahvo_irq_gpio), IRQ_TYPE_EDGE_RISING);
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nokia770_i2c_board_info_2[0].irq = gpio_to_irq(retu_irq_gpio);
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nokia770_i2c_board_info_2[1].irq = gpio_to_irq(tahvo_irq_gpio);
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i2c_register_board_info(2, nokia770_i2c_board_info_2,
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ARRAY_SIZE(nokia770_i2c_board_info_2));
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gpiod_add_lookup_table(&nokia770_cbus_gpio_table);
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platform_device_register(&nokia770_cbus_device);
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}
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#else /* CONFIG_I2C_CBUS_GPIO */
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static void __init nokia770_cbus_init(void)
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{
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}
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#endif /* CONFIG_I2C_CBUS_GPIO */
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static void __init omap_nokia770_init(void)
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{
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/* On Nokia 770, the SleepX signal is masked with an
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* MPUIO line by default. It has to be unmasked for it
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* to become functional */
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/* SleepX mask direction */
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omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
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/* Unmask SleepX signal */
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omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
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platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
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nokia770_spi_board_info[1].irq = gpio_to_irq(15);
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spi_register_board_info(nokia770_spi_board_info,
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ARRAY_SIZE(nokia770_spi_board_info));
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omap_serial_init();
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omap_register_i2c_bus(1, 100, NULL, 0);
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hwa742_dev_init();
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mipid_dev_init();
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omap1_usb_init(&nokia770_usb_config);
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nokia770_mmc_init();
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nokia770_cbus_init();
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}
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MACHINE_START(NOKIA770, "Nokia 770")
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.atag_offset = 0x100,
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.map_io = omap1_map_io,
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.init_early = omap1_init_early,
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.init_irq = omap1_init_irq,
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.handle_irq = omap1_handle_irq,
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.init_machine = omap_nokia770_init,
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.init_late = omap1_init_late,
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.init_time = omap1_timer_init,
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.restart = omap1_restart,
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MACHINE_END
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