422 lines
10 KiB
C
422 lines
10 KiB
C
/*
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* board-omap3pandora.c (Pandora Handheld Console)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/platform_device.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/regulator/machine.h>
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#include <linux/i2c/twl4030.h>
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#include <linux/leds.h>
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#include <linux/input.h>
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#include <linux/input/matrix_keypad.h>
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#include <linux/gpio_keys.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/board.h>
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#include <plat/common.h>
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#include <mach/gpio.h>
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#include <mach/hardware.h>
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#include <plat/mcspi.h>
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#include <plat/usb.h>
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#include <plat/mux.h>
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#include "sdram-micron-mt46h32m32lf-6.h"
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#include "mmc-twl4030.h"
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#define OMAP3_PANDORA_TS_GPIO 94
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/* hardware debounce: (value + 1) * 31us */
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#define GPIO_DEBOUNCE_TIME 127
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static struct gpio_led pandora_gpio_leds[] = {
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{
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.name = "pandora::sd1",
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.default_trigger = "mmc0",
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.gpio = 128,
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}, {
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.name = "pandora::sd2",
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.default_trigger = "mmc1",
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.gpio = 129,
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}, {
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.name = "pandora::bluetooth",
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.gpio = 158,
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}, {
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.name = "pandora::wifi",
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.gpio = 159,
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},
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};
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static struct gpio_led_platform_data pandora_gpio_led_data = {
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.leds = pandora_gpio_leds,
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.num_leds = ARRAY_SIZE(pandora_gpio_leds),
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};
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static struct platform_device pandora_leds_gpio = {
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.name = "leds-gpio",
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.id = -1,
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.dev = {
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.platform_data = &pandora_gpio_led_data,
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},
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};
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#define GPIO_BUTTON(gpio_num, ev_type, ev_code, act_low, descr) \
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{ \
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.gpio = gpio_num, \
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.type = ev_type, \
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.code = ev_code, \
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.active_low = act_low, \
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.desc = "btn " descr, \
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}
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#define GPIO_BUTTON_LOW(gpio_num, event_code, description) \
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GPIO_BUTTON(gpio_num, EV_KEY, event_code, 1, description)
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static struct gpio_keys_button pandora_gpio_keys[] = {
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GPIO_BUTTON_LOW(110, KEY_UP, "up"),
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GPIO_BUTTON_LOW(103, KEY_DOWN, "down"),
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GPIO_BUTTON_LOW(96, KEY_LEFT, "left"),
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GPIO_BUTTON_LOW(98, KEY_RIGHT, "right"),
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GPIO_BUTTON_LOW(111, BTN_A, "a"),
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GPIO_BUTTON_LOW(106, BTN_B, "b"),
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GPIO_BUTTON_LOW(109, BTN_X, "x"),
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GPIO_BUTTON_LOW(101, BTN_Y, "y"),
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GPIO_BUTTON_LOW(102, BTN_TL, "l"),
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GPIO_BUTTON_LOW(97, BTN_TL2, "l2"),
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GPIO_BUTTON_LOW(105, BTN_TR, "r"),
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GPIO_BUTTON_LOW(107, BTN_TR2, "r2"),
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GPIO_BUTTON_LOW(104, KEY_LEFTCTRL, "ctrl"),
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GPIO_BUTTON_LOW(99, KEY_MENU, "menu"),
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GPIO_BUTTON_LOW(176, KEY_COFFEE, "hold"),
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GPIO_BUTTON(100, EV_KEY, KEY_LEFTALT, 0, "alt"),
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GPIO_BUTTON(108, EV_SW, SW_LID, 1, "lid"),
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};
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static struct gpio_keys_platform_data pandora_gpio_key_info = {
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.buttons = pandora_gpio_keys,
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.nbuttons = ARRAY_SIZE(pandora_gpio_keys),
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};
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static struct platform_device pandora_keys_gpio = {
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.name = "gpio-keys",
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.id = -1,
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.dev = {
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.platform_data = &pandora_gpio_key_info,
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},
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};
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static void __init pandora_keys_gpio_init(void)
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{
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/* set debounce time for GPIO banks 4 and 6 */
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omap_set_gpio_debounce_time(32 * 3, GPIO_DEBOUNCE_TIME);
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omap_set_gpio_debounce_time(32 * 5, GPIO_DEBOUNCE_TIME);
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}
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static int board_keymap[] = {
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/* row, col, code */
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KEY(0, 0, KEY_9),
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KEY(0, 1, KEY_8),
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KEY(0, 2, KEY_I),
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KEY(0, 3, KEY_J),
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KEY(0, 4, KEY_N),
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KEY(0, 5, KEY_M),
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KEY(1, 0, KEY_0),
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KEY(1, 1, KEY_7),
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KEY(1, 2, KEY_U),
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KEY(1, 3, KEY_H),
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KEY(1, 4, KEY_B),
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KEY(1, 5, KEY_SPACE),
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KEY(2, 0, KEY_BACKSPACE),
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KEY(2, 1, KEY_6),
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KEY(2, 2, KEY_Y),
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KEY(2, 3, KEY_G),
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KEY(2, 4, KEY_V),
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KEY(2, 5, KEY_FN),
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KEY(3, 0, KEY_O),
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KEY(3, 1, KEY_5),
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KEY(3, 2, KEY_T),
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KEY(3, 3, KEY_F),
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KEY(3, 4, KEY_C),
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KEY(4, 0, KEY_P),
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KEY(4, 1, KEY_4),
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KEY(4, 2, KEY_R),
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KEY(4, 3, KEY_D),
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KEY(4, 4, KEY_X),
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KEY(5, 0, KEY_K),
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KEY(5, 1, KEY_3),
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KEY(5, 2, KEY_E),
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KEY(5, 3, KEY_S),
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KEY(5, 4, KEY_Z),
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KEY(6, 0, KEY_L),
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KEY(6, 1, KEY_2),
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KEY(6, 2, KEY_W),
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KEY(6, 3, KEY_A),
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KEY(6, 4, KEY_DOT),
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KEY(7, 0, KEY_ENTER),
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KEY(7, 1, KEY_1),
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KEY(7, 2, KEY_Q),
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KEY(7, 3, KEY_LEFTSHIFT),
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KEY(7, 4, KEY_COMMA),
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};
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static struct matrix_keymap_data board_map_data = {
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.keymap = board_keymap,
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.keymap_size = ARRAY_SIZE(board_keymap),
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};
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static struct twl4030_keypad_data pandora_kp_data = {
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.keymap_data = &board_map_data,
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.rows = 8,
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.cols = 6,
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.rep = 1,
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};
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static struct twl4030_hsmmc_info omap3pandora_mmc[] = {
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{
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.mmc = 1,
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.wires = 4,
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.gpio_cd = -EINVAL,
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.gpio_wp = 126,
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.ext_clock = 0,
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},
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{
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.mmc = 2,
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.wires = 4,
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.gpio_cd = -EINVAL,
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.gpio_wp = 127,
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.ext_clock = 1,
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.transceiver = true,
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},
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{
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.mmc = 3,
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.wires = 4,
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.gpio_cd = -EINVAL,
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.gpio_wp = -EINVAL,
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},
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{} /* Terminator */
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};
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static struct regulator_consumer_supply pandora_vmmc1_supply = {
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.supply = "vmmc",
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};
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static struct regulator_consumer_supply pandora_vmmc2_supply = {
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.supply = "vmmc",
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};
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static int omap3pandora_twl_gpio_setup(struct device *dev,
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unsigned gpio, unsigned ngpio)
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{
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/* gpio + {0,1} is "mmc{0,1}_cd" (input/IRQ) */
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omap3pandora_mmc[0].gpio_cd = gpio + 0;
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omap3pandora_mmc[1].gpio_cd = gpio + 1;
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twl4030_mmc_init(omap3pandora_mmc);
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/* link regulators to MMC adapters */
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pandora_vmmc1_supply.dev = omap3pandora_mmc[0].dev;
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pandora_vmmc2_supply.dev = omap3pandora_mmc[1].dev;
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return 0;
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}
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static struct twl4030_gpio_platform_data omap3pandora_gpio_data = {
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.gpio_base = OMAP_MAX_GPIO_LINES,
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.irq_base = TWL4030_GPIO_IRQ_BASE,
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.irq_end = TWL4030_GPIO_IRQ_END,
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.setup = omap3pandora_twl_gpio_setup,
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};
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/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
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static struct regulator_init_data pandora_vmmc1 = {
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.constraints = {
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.min_uV = 1850000,
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.max_uV = 3150000,
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.valid_modes_mask = REGULATOR_MODE_NORMAL
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| REGULATOR_MODE_STANDBY,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_MODE
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| REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = 1,
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.consumer_supplies = &pandora_vmmc1_supply,
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};
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/* VMMC2 for MMC2 pins CMD, CLK, DAT0..DAT3 (max 100 mA) */
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static struct regulator_init_data pandora_vmmc2 = {
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.constraints = {
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.min_uV = 1850000,
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.max_uV = 3150000,
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.valid_modes_mask = REGULATOR_MODE_NORMAL
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| REGULATOR_MODE_STANDBY,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_MODE
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| REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = 1,
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.consumer_supplies = &pandora_vmmc2_supply,
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};
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static struct twl4030_usb_data omap3pandora_usb_data = {
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.usb_mode = T2_USB_MODE_ULPI,
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};
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static struct twl4030_platform_data omap3pandora_twldata = {
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.irq_base = TWL4030_IRQ_BASE,
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.irq_end = TWL4030_IRQ_END,
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.gpio = &omap3pandora_gpio_data,
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.usb = &omap3pandora_usb_data,
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.vmmc1 = &pandora_vmmc1,
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.vmmc2 = &pandora_vmmc2,
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.keypad = &pandora_kp_data,
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};
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static struct i2c_board_info __initdata omap3pandora_i2c_boardinfo[] = {
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{
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I2C_BOARD_INFO("tps65950", 0x48),
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.flags = I2C_CLIENT_WAKE,
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.irq = INT_34XX_SYS_NIRQ,
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.platform_data = &omap3pandora_twldata,
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},
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};
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static int __init omap3pandora_i2c_init(void)
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{
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omap_register_i2c_bus(1, 2600, omap3pandora_i2c_boardinfo,
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ARRAY_SIZE(omap3pandora_i2c_boardinfo));
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/* i2c2 pins are not connected */
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omap_register_i2c_bus(3, 400, NULL, 0);
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return 0;
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}
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static void __init omap3pandora_ads7846_init(void)
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{
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int gpio = OMAP3_PANDORA_TS_GPIO;
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int ret;
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ret = gpio_request(gpio, "ads7846_pen_down");
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if (ret < 0) {
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printk(KERN_ERR "Failed to request GPIO %d for "
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"ads7846 pen down IRQ\n", gpio);
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return;
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}
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gpio_direction_input(gpio);
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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(OMAP3_PANDORA_TS_GPIO);
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}
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static struct ads7846_platform_data ads7846_config = {
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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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.keep_vref_on = 1,
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};
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static struct omap2_mcspi_device_config ads7846_mcspi_config = {
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.turbo_mode = 0,
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.single_channel = 1, /* 0: slave, 1: master */
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};
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static struct spi_board_info omap3pandora_spi_board_info[] __initdata = {
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{
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.modalias = "ads7846",
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.bus_num = 1,
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.chip_select = 0,
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.max_speed_hz = 1500000,
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.controller_data = &ads7846_mcspi_config,
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.irq = OMAP_GPIO_IRQ(OMAP3_PANDORA_TS_GPIO),
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.platform_data = &ads7846_config,
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}
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};
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static struct platform_device omap3pandora_lcd_device = {
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.name = "pandora_lcd",
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.id = -1,
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};
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static struct omap_lcd_config omap3pandora_lcd_config __initdata = {
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.ctrl_name = "internal",
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};
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static struct omap_board_config_kernel omap3pandora_config[] __initdata = {
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{ OMAP_TAG_LCD, &omap3pandora_lcd_config },
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};
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static void __init omap3pandora_init_irq(void)
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{
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omap_board_config = omap3pandora_config;
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omap_board_config_size = ARRAY_SIZE(omap3pandora_config);
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omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
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mt46h32m32lf6_sdrc_params);
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omap_init_irq();
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omap_gpio_init();
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}
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static struct platform_device *omap3pandora_devices[] __initdata = {
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&omap3pandora_lcd_device,
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&pandora_leds_gpio,
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&pandora_keys_gpio,
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};
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static void __init omap3pandora_init(void)
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{
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omap3pandora_i2c_init();
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platform_add_devices(omap3pandora_devices,
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ARRAY_SIZE(omap3pandora_devices));
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omap_serial_init();
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spi_register_board_info(omap3pandora_spi_board_info,
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ARRAY_SIZE(omap3pandora_spi_board_info));
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omap3pandora_ads7846_init();
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pandora_keys_gpio_init();
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usb_musb_init();
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/* Ensure SDRC pins are mux'd for self-refresh */
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omap_cfg_reg(H16_34XX_SDRC_CKE0);
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omap_cfg_reg(H17_34XX_SDRC_CKE1);
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}
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static void __init omap3pandora_map_io(void)
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{
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omap2_set_globals_343x();
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omap2_map_common_io();
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}
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MACHINE_START(OMAP3_PANDORA, "Pandora Handheld Console")
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.phys_io = 0x48000000,
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.io_pg_offst = ((0xfa000000) >> 18) & 0xfffc,
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.boot_params = 0x80000100,
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.map_io = omap3pandora_map_io,
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.init_irq = omap3pandora_init_irq,
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.init_machine = omap3pandora_init,
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.timer = &omap_timer,
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MACHINE_END
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