07bae6c321
There are only limited possible LCD pin configurations for pxa25x platforms, simplify this by macro. Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
423 lines
11 KiB
C
423 lines
11 KiB
C
/*
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* linux/arch/arm/mach-pxa/palmtc.c
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*
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* Support for the Palm Tungsten|C
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*
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* Author: Marek Vasut <marek.vasut@gmail.com>
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*
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* Based on work of:
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* Petr Blaha <p3t3@centrum.cz>
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* Chetan S. Kumar <shivakumar.chetan@gmail.com>
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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/platform_device.h>
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#include <linux/delay.h>
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#include <linux/irq.h>
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#include <linux/input.h>
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#include <linux/pwm_backlight.h>
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#include <linux/gpio.h>
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#include <linux/input/matrix_keypad.h>
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#include <linux/ucb1400.h>
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#include <linux/power_supply.h>
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#include <linux/gpio_keys.h>
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#include <linux/mtd/physmap.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 <mach/audio.h>
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#include <mach/palmtc.h>
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#include <mach/mmc.h>
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#include <mach/pxafb.h>
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#include <mach/mfp-pxa25x.h>
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#include <mach/irda.h>
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#include <mach/udc.h>
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#include <mach/pxa2xx-regs.h>
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#include "generic.h"
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#include "devices.h"
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/******************************************************************************
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* Pin configuration
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******************************************************************************/
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static unsigned long palmtc_pin_config[] __initdata = {
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/* MMC */
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GPIO6_MMC_CLK,
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GPIO8_MMC_CS0,
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GPIO12_GPIO, /* detect */
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GPIO32_GPIO, /* power */
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GPIO54_GPIO, /* r/o switch */
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/* PCMCIA */
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GPIO52_nPCE_1,
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GPIO53_nPCE_2,
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GPIO50_nPIOR,
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GPIO51_nPIOW,
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GPIO49_nPWE,
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GPIO48_nPOE,
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GPIO52_nPCE_1,
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GPIO53_nPCE_2,
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GPIO57_nIOIS16,
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GPIO56_nPWAIT,
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/* AC97 */
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GPIO28_AC97_BITCLK,
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GPIO29_AC97_SDATA_IN_0,
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GPIO30_AC97_SDATA_OUT,
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GPIO31_AC97_SYNC,
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/* IrDA */
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GPIO45_GPIO, /* ir disable */
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GPIO46_FICP_RXD,
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GPIO47_FICP_TXD,
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/* PWM */
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GPIO17_PWM1_OUT,
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/* USB */
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GPIO4_GPIO, /* detect */
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GPIO36_GPIO, /* pullup */
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/* LCD */
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GPIOxx_LCD_TFT_16BPP,
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/* MATRIX KEYPAD */
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GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH, /* in 0 */
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GPIO9_GPIO | WAKEUP_ON_EDGE_BOTH, /* in 1 */
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GPIO10_GPIO | WAKEUP_ON_EDGE_BOTH, /* in 2 */
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GPIO11_GPIO | WAKEUP_ON_EDGE_BOTH, /* in 3 */
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GPIO18_GPIO | MFP_LPM_DRIVE_LOW, /* out 0 */
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GPIO19_GPIO | MFP_LPM_DRIVE_LOW, /* out 1 */
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GPIO20_GPIO | MFP_LPM_DRIVE_LOW, /* out 2 */
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GPIO21_GPIO | MFP_LPM_DRIVE_LOW, /* out 3 */
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GPIO22_GPIO | MFP_LPM_DRIVE_LOW, /* out 4 */
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GPIO23_GPIO | MFP_LPM_DRIVE_LOW, /* out 5 */
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GPIO24_GPIO | MFP_LPM_DRIVE_LOW, /* out 6 */
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GPIO25_GPIO | MFP_LPM_DRIVE_LOW, /* out 7 */
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GPIO26_GPIO | MFP_LPM_DRIVE_LOW, /* out 8 */
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GPIO27_GPIO | MFP_LPM_DRIVE_LOW, /* out 9 */
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GPIO79_GPIO | MFP_LPM_DRIVE_LOW, /* out 10 */
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GPIO80_GPIO | MFP_LPM_DRIVE_LOW, /* out 11 */
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/* PXA GPIO KEYS */
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GPIO7_GPIO | WAKEUP_ON_EDGE_BOTH, /* hotsync button on cradle */
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/* MISC */
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GPIO1_RST, /* reset */
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GPIO2_GPIO, /* earphone detect */
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GPIO16_GPIO, /* backlight switch */
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};
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/******************************************************************************
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* SD/MMC card controller
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******************************************************************************/
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static struct pxamci_platform_data palmtc_mci_platform_data = {
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.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
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.gpio_power = GPIO_NR_PALMTC_SD_POWER,
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.gpio_card_ro = GPIO_NR_PALMTC_SD_READONLY,
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.gpio_card_detect = GPIO_NR_PALMTC_SD_DETECT_N,
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.detect_delay = 20,
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};
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/******************************************************************************
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* GPIO keys
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******************************************************************************/
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static struct gpio_keys_button palmtc_pxa_buttons[] = {
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{KEY_F8, GPIO_NR_PALMTC_HOTSYNC_BUTTON, 1, "HotSync Button", EV_KEY, 1},
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};
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static struct gpio_keys_platform_data palmtc_pxa_keys_data = {
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.buttons = palmtc_pxa_buttons,
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.nbuttons = ARRAY_SIZE(palmtc_pxa_buttons),
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};
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static struct platform_device palmtc_pxa_keys = {
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.name = "gpio-keys",
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.id = -1,
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.dev = {
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.platform_data = &palmtc_pxa_keys_data,
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},
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};
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/******************************************************************************
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* Backlight
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******************************************************************************/
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static int palmtc_backlight_init(struct device *dev)
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{
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int ret;
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ret = gpio_request(GPIO_NR_PALMTC_BL_POWER, "BL POWER");
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if (ret)
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goto err;
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ret = gpio_direction_output(GPIO_NR_PALMTC_BL_POWER, 1);
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if (ret)
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goto err2;
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return 0;
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err2:
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gpio_free(GPIO_NR_PALMTC_BL_POWER);
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err:
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return ret;
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}
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static int palmtc_backlight_notify(struct device *dev, int brightness)
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{
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/* backlight is on when GPIO16 AF0 is high */
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gpio_set_value(GPIO_NR_PALMTC_BL_POWER, brightness);
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return brightness;
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}
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static void palmtc_backlight_exit(struct device *dev)
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{
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gpio_free(GPIO_NR_PALMTC_BL_POWER);
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}
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static struct platform_pwm_backlight_data palmtc_backlight_data = {
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.pwm_id = 1,
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.max_brightness = PALMTC_MAX_INTENSITY,
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.dft_brightness = PALMTC_MAX_INTENSITY,
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.pwm_period_ns = PALMTC_PERIOD_NS,
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.init = palmtc_backlight_init,
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.notify = palmtc_backlight_notify,
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.exit = palmtc_backlight_exit,
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};
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static struct platform_device palmtc_backlight = {
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.name = "pwm-backlight",
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.dev = {
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.parent = &pxa25x_device_pwm1.dev,
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.platform_data = &palmtc_backlight_data,
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},
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};
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/******************************************************************************
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* IrDA
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******************************************************************************/
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static struct pxaficp_platform_data palmtc_ficp_platform_data = {
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.gpio_pwdown = GPIO_NR_PALMTC_IR_DISABLE,
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.transceiver_cap = IR_SIRMODE | IR_OFF,
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};
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/******************************************************************************
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* Keyboard
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******************************************************************************/
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static const uint32_t palmtc_matrix_keys[] = {
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KEY(0, 0, KEY_F1),
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KEY(0, 1, KEY_X),
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KEY(0, 2, KEY_POWER),
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KEY(0, 3, KEY_TAB),
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KEY(0, 4, KEY_A),
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KEY(0, 5, KEY_Q),
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KEY(0, 6, KEY_LEFTSHIFT),
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KEY(0, 7, KEY_Z),
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KEY(0, 8, KEY_S),
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KEY(0, 9, KEY_W),
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KEY(0, 10, KEY_E),
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KEY(0, 11, KEY_UP),
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KEY(1, 0, KEY_F2),
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KEY(1, 1, KEY_DOWN),
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KEY(1, 3, KEY_D),
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KEY(1, 4, KEY_C),
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KEY(1, 5, KEY_F),
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KEY(1, 6, KEY_R),
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KEY(1, 7, KEY_SPACE),
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KEY(1, 8, KEY_V),
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KEY(1, 9, KEY_G),
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KEY(1, 10, KEY_T),
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KEY(1, 11, KEY_LEFT),
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KEY(2, 0, KEY_F3),
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KEY(2, 1, KEY_LEFTCTRL),
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KEY(2, 3, KEY_H),
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KEY(2, 4, KEY_Y),
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KEY(2, 5, KEY_N),
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KEY(2, 6, KEY_J),
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KEY(2, 7, KEY_U),
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KEY(2, 8, KEY_M),
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KEY(2, 9, KEY_K),
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KEY(2, 10, KEY_I),
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KEY(2, 11, KEY_RIGHT),
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KEY(3, 0, KEY_F4),
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KEY(3, 1, KEY_ENTER),
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KEY(3, 3, KEY_DOT),
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KEY(3, 4, KEY_L),
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KEY(3, 5, KEY_O),
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KEY(3, 6, KEY_LEFTALT),
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KEY(3, 7, KEY_ENTER),
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KEY(3, 8, KEY_BACKSPACE),
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KEY(3, 9, KEY_P),
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KEY(3, 10, KEY_B),
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KEY(3, 11, KEY_FN),
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};
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const struct matrix_keymap_data palmtc_keymap_data = {
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.keymap = palmtc_matrix_keys,
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.keymap_size = ARRAY_SIZE(palmtc_matrix_keys),
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};
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const static unsigned int palmtc_keypad_row_gpios[] = {
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0, 9, 10, 11
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};
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const static unsigned int palmtc_keypad_col_gpios[] = {
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18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 79, 80
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};
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static struct matrix_keypad_platform_data palmtc_keypad_platform_data = {
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.keymap_data = &palmtc_keymap_data,
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.row_gpios = palmtc_keypad_row_gpios,
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.num_row_gpios = ARRAY_SIZE(palmtc_keypad_row_gpios),
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.col_gpios = palmtc_keypad_col_gpios,
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.num_col_gpios = ARRAY_SIZE(palmtc_keypad_col_gpios),
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.active_low = 1,
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.debounce_ms = 20,
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.col_scan_delay_us = 5,
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};
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static struct platform_device palmtc_keyboard = {
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.name = "matrix-keypad",
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.id = -1,
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.dev = {
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.platform_data = &palmtc_keypad_platform_data,
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},
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};
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/******************************************************************************
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* UDC
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******************************************************************************/
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static struct pxa2xx_udc_mach_info palmtc_udc_info __initdata = {
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.gpio_vbus = GPIO_NR_PALMTC_USB_DETECT_N,
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.gpio_vbus_inverted = 1,
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.gpio_pullup = GPIO_NR_PALMTC_USB_POWER,
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};
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/******************************************************************************
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* Touchscreen / Battery / GPIO-extender
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******************************************************************************/
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static struct platform_device palmtc_ucb1400_core = {
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.name = "ucb1400_core",
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.id = -1,
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};
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/******************************************************************************
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* NOR Flash
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******************************************************************************/
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static struct resource palmtc_flash_resource = {
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.start = PXA_CS0_PHYS,
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.end = PXA_CS0_PHYS + SZ_16M - 1,
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.flags = IORESOURCE_MEM,
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};
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static struct mtd_partition palmtc_flash_parts[] = {
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{
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.name = "U-Boot Bootloader",
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.offset = 0x0,
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.size = 0x40000,
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},
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{
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.name = "Linux Kernel",
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.offset = 0x40000,
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.size = 0x2c0000,
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},
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{
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.name = "Filesystem",
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.offset = 0x300000,
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.size = 0xcc0000,
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},
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{
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.name = "U-Boot Environment",
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.offset = 0xfc0000,
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct physmap_flash_data palmtc_flash_data = {
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.width = 4,
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.parts = palmtc_flash_parts,
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.nr_parts = ARRAY_SIZE(palmtc_flash_parts),
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};
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static struct platform_device palmtc_flash = {
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.name = "physmap-flash",
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.id = -1,
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.resource = &palmtc_flash_resource,
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.num_resources = 1,
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.dev = {
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.platform_data = &palmtc_flash_data,
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},
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};
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/******************************************************************************
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* Framebuffer
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******************************************************************************/
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static struct pxafb_mode_info palmtc_lcd_modes[] = {
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{
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.pixclock = 115384,
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.xres = 320,
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.yres = 320,
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.bpp = 16,
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.left_margin = 27,
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.right_margin = 7,
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.upper_margin = 7,
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.lower_margin = 8,
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.hsync_len = 6,
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.vsync_len = 1,
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},
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};
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static struct pxafb_mach_info palmtc_lcd_screen = {
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.modes = palmtc_lcd_modes,
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.num_modes = ARRAY_SIZE(palmtc_lcd_modes),
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.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
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};
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/******************************************************************************
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* Machine init
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******************************************************************************/
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static struct platform_device *devices[] __initdata = {
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&palmtc_backlight,
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&palmtc_ucb1400_core,
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&palmtc_keyboard,
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&palmtc_pxa_keys,
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&palmtc_flash,
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};
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static void __init palmtc_init(void)
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{
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pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtc_pin_config));
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pxa_set_ffuart_info(NULL);
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pxa_set_btuart_info(NULL);
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pxa_set_stuart_info(NULL);
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pxa_set_hwuart_info(NULL);
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set_pxa_fb_info(&palmtc_lcd_screen);
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pxa_set_mci_info(&palmtc_mci_platform_data);
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pxa_set_udc_info(&palmtc_udc_info);
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pxa_set_ac97_info(NULL);
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pxa_set_ficp_info(&palmtc_ficp_platform_data);
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platform_add_devices(devices, ARRAY_SIZE(devices));
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};
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MACHINE_START(PALMTC, "Palm Tungsten|C")
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.phys_io = 0x40000000,
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.boot_params = 0xa0000100,
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.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
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.map_io = pxa_map_io,
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.init_irq = pxa25x_init_irq,
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.timer = &pxa_timer,
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.init_machine = palmtc_init
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MACHINE_END
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