ddba6c7f7e
LCD config for old omapfb driver is passed with OMAP_TAG_LCD from board files or from the bootloader. In an effort to remove OMAP_TAG_LCD, this patch adds omapfb_set_lcd_config() function that the board files can call to set the LCD config. This has the drawback that configuration can no longer come from the bootloader. Of the boards supported by the kernel, this should only affect N770 which depends on the data from the bootloader. This patch adds an LCD config for N770 to its board files, but that is most probably broken. Fixing this would need information about the HW setup in N770 boards. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Tony Lindgren <tony@atomide.com>
258 lines
6.2 KiB
C
258 lines
6.2 KiB
C
/*
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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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/gpio.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/clk.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 <mach/hardware.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 <plat/mux.h>
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#include <plat/usb.h>
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#include <plat/board.h>
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#include <plat/keypad.h>
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#include "common.h"
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#include <plat/lcd_mipid.h>
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#include <plat/mmc.h>
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#include <plat/clock.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 struct omap_lcd_config nokia770_lcd_config __initdata = {
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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 void __init ads7846_dev_init(void)
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{
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if (gpio_request(ADS7846_PENDOWN_GPIO, "ADS7846 pendown") < 0)
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printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
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}
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static int ads7846_get_pendown_state(void)
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{
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return !gpio_get_value(ADS7846_PENDOWN_GPIO);
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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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.get_pendown_state = ads7846_get_pendown_state,
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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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.irq = OMAP_GPIO_IRQ(15),
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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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};
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#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
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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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.dma_mask = 0xffffffff,
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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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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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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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ads7846_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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}
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MACHINE_START(NOKIA770, "Nokia 770")
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.atag_offset = 0x100,
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.map_io = omap16xx_map_io,
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.init_early = omap1_init_early,
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.reserve = omap_reserve,
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.init_irq = omap1_init_irq,
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.init_machine = omap_nokia770_init,
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.timer = &omap1_timer,
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.restart = omap1_restart,
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MACHINE_END
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