2 * linux/arch/arm/mach-pxa/zylonite_pxa320.c
4 * PXA320 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>
20 #include <mach/gpio.h>
21 #include <mach/mfp-pxa320.h>
22 #include <mach/zylonite.h>
26 static mfp_cfg_t mfp_cfg[] __initdata = {
52 GPIO14_PWM3_OUT, /* backlight */
55 GPIO41_UART1_RXD | MFP_LPM_EDGE_FALL,
59 GPIO45_UART1_DSR | MFP_LPM_EDGE_FALL,
66 GPIO35_AC97_SDATA_IN_0,
67 GPIO37_AC97_SDATA_OUT,
86 GPIO105_KP_DKIN_0 | MFP_LPM_EDGE_BOTH,
87 GPIO106_KP_DKIN_1 | MFP_LPM_EDGE_BOTH,
88 GPIO113_KP_MKIN_0 | MFP_LPM_EDGE_BOTH,
89 GPIO114_KP_MKIN_1 | MFP_LPM_EDGE_BOTH,
90 GPIO115_KP_MKIN_2 | MFP_LPM_EDGE_BOTH,
91 GPIO116_KP_MKIN_3 | MFP_LPM_EDGE_BOTH,
92 GPIO117_KP_MKIN_4 | MFP_LPM_EDGE_BOTH,
93 GPIO118_KP_MKIN_5 | MFP_LPM_EDGE_BOTH,
94 GPIO119_KP_MKIN_6 | MFP_LPM_EDGE_BOTH,
95 GPIO120_KP_MKIN_7 | MFP_LPM_EDGE_BOTH,
111 GPIO19_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
115 GPIO23_MMC1_CMD,/* CMD0 for slot 0 */
116 GPIO31_GPIO, /* CMD1 default as GPIO for slot 0 */
120 GPIO25_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
127 GPIO1_2_GPIO | MFP_LPM_DRIVE_HIGH,
128 GPIO4_2_GPIO | MFP_LPM_DRIVE_HIGH,
131 #define NUM_LCD_DETECT_PINS 7
133 static int lcd_detect_pins[] __initdata = {
134 MFP_PIN_GPIO72, /* LCD_LDD_17 - ORIENT */
135 MFP_PIN_GPIO71, /* LCD_LDD_16 - LCDID[5] */
136 MFP_PIN_GPIO17_2, /* LCD_BIAS - LCDID[4] */
137 MFP_PIN_GPIO15_2, /* LCD_LCLK - LCDID[3] */
138 MFP_PIN_GPIO14_2, /* LCD_FCLK - LCDID[2] */
139 MFP_PIN_GPIO73, /* LCD_CS_N - LCDID[1] */
140 MFP_PIN_GPIO74, /* LCD_VSYNC - LCDID[0] */
142 * set the MFP_PIN_GPIO 14/15/17 to alternate function other than
143 * GPIO to avoid input level confliction with 14_2, 15_2, 17_2
150 static int lcd_detect_mfpr[] __initdata = {
151 /* AF0, DS 1X, Pull Neither, Edge Clear */
152 0x8440, 0x8440, 0x8440, 0x8440, 0x8440, 0x8440, 0x8440,
153 0xc442, /* Backlight, Pull-Up, AF2 */
158 static void __init zylonite_detect_lcd_panel(void)
160 unsigned long mfpr_save[ARRAY_SIZE(lcd_detect_pins)];
163 /* save the original MFP settings of these pins and configure them
164 * as GPIO Input, DS01X, Pull Neither, Edge Clear
166 for (i = 0; i < ARRAY_SIZE(lcd_detect_pins); i++) {
167 mfpr_save[i] = pxa3xx_mfp_read(lcd_detect_pins[i]);
168 pxa3xx_mfp_write(lcd_detect_pins[i], lcd_detect_mfpr[i]);
171 for (i = 0; i < NUM_LCD_DETECT_PINS; i++) {
173 gpio = mfp_to_gpio(lcd_detect_pins[i]);
174 gpio_direction_input(gpio);
176 if (gpio_get_value(gpio))
180 /* lcd id, flush out bit 1 */
183 /* lcd orientation, portrait or landscape */
184 lcd_orientation = (id >> 6) & 0x1;
186 /* restore the original MFP settings */
187 for (i = 0; i < ARRAY_SIZE(lcd_detect_pins); i++)
188 pxa3xx_mfp_write(lcd_detect_pins[i], mfpr_save[i]);
191 void __init zylonite_pxa320_init(void)
193 if (cpu_is_pxa320()) {
195 pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_cfg));
197 /* detect LCD panel */
198 zylonite_detect_lcd_panel();
200 /* GPIO pin assignment */
201 gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO9);
202 gpio_debug_led1 = mfp_to_gpio(MFP_PIN_GPIO1_2);
203 gpio_debug_led2 = mfp_to_gpio(MFP_PIN_GPIO4_2);
205 /* MMC card detect & write protect for controller 0 */
206 zylonite_mmc_slot[0].gpio_cd = mfp_to_gpio(MFP_PIN_GPIO1);
207 zylonite_mmc_slot[0].gpio_wp = mfp_to_gpio(MFP_PIN_GPIO5);
210 wm9713_irq = mfp_to_gpio(MFP_PIN_GPIO15);