2 * linux/arch/arm/mach-pxa/zylonite_pxa300.c
4 * PXA300/PXA310 specific support code for the
5 * PXA3xx Development Platform (aka Zylonite)
7 * Copyright (C) 2007 Marvell Internation Ltd.
8 * 2007-08-21: eric miao <eric.miao@marvell.com>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
16 #include <linux/module.h>
17 #include <linux/kernel.h>
18 #include <linux/init.h>
19 #include <linux/i2c.h>
20 #include <linux/i2c/pca953x.h>
23 #include <mach/mfp-pxa300.h>
25 #include <mach/zylonite.h>
29 /* PXA300/PXA310 common configurations */
30 static mfp_cfg_t common_mfp_cfg[] __initdata = {
56 GPIO20_PWM3_OUT, /* backlight */
60 GPIO112_UART2_RXD | MFP_LPM_EDGE_FALL,
62 GPIO114_UART2_CTS | MFP_LPM_EDGE_BOTH,
66 GPIO110_UART3_RXD | MFP_LPM_EDGE_FALL,
72 GPIO25_AC97_SDATA_IN_0,
73 GPIO27_AC97_SDATA_OUT,
86 GPIO107_KP_DKIN_0 | MFP_LPM_EDGE_BOTH,
87 GPIO108_KP_DKIN_1 | MFP_LPM_EDGE_BOTH,
88 GPIO115_KP_MKIN_0 | MFP_LPM_EDGE_BOTH,
89 GPIO116_KP_MKIN_1 | MFP_LPM_EDGE_BOTH,
90 GPIO117_KP_MKIN_2 | MFP_LPM_EDGE_BOTH,
91 GPIO118_KP_MKIN_3 | MFP_LPM_EDGE_BOTH,
92 GPIO119_KP_MKIN_4 | MFP_LPM_EDGE_BOTH,
93 GPIO120_KP_MKIN_5 | MFP_LPM_EDGE_BOTH,
94 GPIO2_2_KP_MKIN_6 | MFP_LPM_EDGE_BOTH,
95 GPIO3_2_KP_MKIN_7 | MFP_LPM_EDGE_BOTH,
107 GPIO4_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
111 GPIO8_MMC1_CMD, /* CMD0 for slot 0 */
112 GPIO15_GPIO, /* CMD1 default as GPIO for slot 0 */
116 GPIO10_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
127 static mfp_cfg_t pxa300_mfp_cfg[] __initdata = {
129 GPIO30_UART1_RXD | MFP_LPM_EDGE_FALL,
134 GPIO34_UART1_DSR | MFP_LPM_EDGE_FALL,
143 static mfp_cfg_t pxa310_mfp_cfg[] __initdata = {
145 GPIO99_UART1_RXD | MFP_LPM_EDGE_FALL,
156 GPIO8_2_MMC3_DAT1 | MFP_LPM_EDGE_BOTH,
163 #define NUM_LCD_DETECT_PINS 7
165 static int lcd_detect_pins[] __initdata = {
166 MFP_PIN_GPIO71, /* LCD_LDD_17 - ORIENT */
167 MFP_PIN_GPIO70, /* LCD_LDD_16 - LCDID[5] */
168 MFP_PIN_GPIO75, /* LCD_BIAS - LCDID[4] */
169 MFP_PIN_GPIO73, /* LCD_LCLK - LCDID[3] */
170 MFP_PIN_GPIO72, /* LCD_FCLK - LCDID[2] */
171 MFP_PIN_GPIO127,/* LCD_CS_N - LCDID[1] */
172 MFP_PIN_GPIO76, /* LCD_VSYNC - LCDID[0] */
175 static void __init zylonite_detect_lcd_panel(void)
177 unsigned long mfpr_save[NUM_LCD_DETECT_PINS];
180 /* save the original MFP settings of these pins and configure
181 * them as GPIO Input, DS01X, Pull Neither, Edge Clear
183 for (i = 0; i < NUM_LCD_DETECT_PINS; i++) {
184 mfpr_save[i] = pxa3xx_mfp_read(lcd_detect_pins[i]);
185 pxa3xx_mfp_write(lcd_detect_pins[i], 0x8440);
188 for (i = 0; i < NUM_LCD_DETECT_PINS; i++) {
190 gpio = mfp_to_gpio(lcd_detect_pins[i]);
191 gpio_direction_input(gpio);
193 if (gpio_get_value(gpio))
197 /* lcd id, flush out bit 1 */
200 /* lcd orientation, portrait or landscape */
201 lcd_orientation = (id >> 6) & 0x1;
203 /* restore the original MFP settings */
204 for (i = 0; i < NUM_LCD_DETECT_PINS; i++)
205 pxa3xx_mfp_write(lcd_detect_pins[i], mfpr_save[i]);
208 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
209 static struct pca953x_platform_data gpio_exp[] = {
218 static struct i2c_board_info zylonite_i2c_board_info[] = {
222 .platform_data = &gpio_exp[0],
227 .platform_data = &gpio_exp[1],
232 static void __init zylonite_init_i2c(void)
234 pxa_set_i2c_info(NULL);
235 i2c_register_board_info(0, ARRAY_AND_SIZE(zylonite_i2c_board_info));
238 static inline void zylonite_init_i2c(void) {}
241 void __init zylonite_pxa300_init(void)
243 if (cpu_is_pxa300() || cpu_is_pxa310()) {
245 pxa3xx_mfp_config(ARRAY_AND_SIZE(common_mfp_cfg));
247 /* detect LCD panel */
248 zylonite_detect_lcd_panel();
250 /* MMC card detect & write protect for controller 0 */
251 zylonite_mmc_slot[0].gpio_cd = EXT_GPIO(0);
252 zylonite_mmc_slot[0].gpio_wp = EXT_GPIO(2);
255 wm9713_irq = mfp_to_gpio(MFP_PIN_GPIO26);
260 if (cpu_is_pxa300()) {
261 pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa300_mfp_cfg));
262 gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO99);
265 if (cpu_is_pxa310()) {
266 pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa310_mfp_cfg));
267 gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO102);
269 /* MMC card detect & write protect for controller 2 */
270 zylonite_mmc_slot[2].gpio_cd = EXT_GPIO(30);
271 zylonite_mmc_slot[2].gpio_wp = EXT_GPIO(31);
274 /* GPIOs for Debug LEDs */
275 gpio_debug_led1 = EXT_GPIO(25);
276 gpio_debug_led2 = EXT_GPIO(26);