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>
21 #include <asm/arch/mfp-pxa300.h>
22 #include <asm/arch/zylonite.h>
26 /* PXA300/PXA310 common configurations */
27 static mfp_cfg_t common_mfp_cfg
[] __initdata
= {
53 GPIO20_PWM3_OUT
, /* backlight */
57 GPIO112_UART2_RXD
| MFP_LPM_EDGE_FALL
,
59 GPIO114_UART2_CTS
| MFP_LPM_EDGE_BOTH
,
63 GPIO110_UART3_RXD
| MFP_LPM_EDGE_FALL
,
69 GPIO25_AC97_SDATA_IN_0
,
70 GPIO27_AC97_SDATA_OUT
,
77 GPIO107_KP_DKIN_0
| MFP_LPM_EDGE_BOTH
,
78 GPIO108_KP_DKIN_1
| MFP_LPM_EDGE_BOTH
,
79 GPIO115_KP_MKIN_0
| MFP_LPM_EDGE_BOTH
,
80 GPIO116_KP_MKIN_1
| MFP_LPM_EDGE_BOTH
,
81 GPIO117_KP_MKIN_2
| MFP_LPM_EDGE_BOTH
,
82 GPIO118_KP_MKIN_3
| MFP_LPM_EDGE_BOTH
,
83 GPIO119_KP_MKIN_4
| MFP_LPM_EDGE_BOTH
,
84 GPIO120_KP_MKIN_5
| MFP_LPM_EDGE_BOTH
,
85 GPIO2_2_KP_MKIN_6
| MFP_LPM_EDGE_BOTH
,
86 GPIO3_2_KP_MKIN_7
| MFP_LPM_EDGE_BOTH
,
98 GPIO4_MMC1_DAT1
| MFP_LPM_EDGE_BOTH
,
102 GPIO8_MMC1_CMD
, /* CMD0 for slot 0 */
103 GPIO15_GPIO
, /* CMD1 default as GPIO for slot 0 */
107 GPIO10_MMC2_DAT1
| MFP_LPM_EDGE_BOTH
,
114 static mfp_cfg_t pxa300_mfp_cfg
[] __initdata
= {
116 GPIO30_UART1_RXD
| MFP_LPM_EDGE_FALL
,
121 GPIO34_UART1_DSR
| MFP_LPM_EDGE_FALL
,
130 static mfp_cfg_t pxa310_mfp_cfg
[] __initdata
= {
132 GPIO99_UART1_RXD
| MFP_LPM_EDGE_FALL
,
143 GPIO8_2_MMC3_DAT1
| MFP_LPM_EDGE_BOTH
,
150 #define NUM_LCD_DETECT_PINS 7
152 static int lcd_detect_pins
[] __initdata
= {
153 MFP_PIN_GPIO71
, /* LCD_LDD_17 - ORIENT */
154 MFP_PIN_GPIO70
, /* LCD_LDD_16 - LCDID[5] */
155 MFP_PIN_GPIO75
, /* LCD_BIAS - LCDID[4] */
156 MFP_PIN_GPIO73
, /* LCD_LCLK - LCDID[3] */
157 MFP_PIN_GPIO72
, /* LCD_FCLK - LCDID[2] */
158 MFP_PIN_GPIO127
,/* LCD_CS_N - LCDID[1] */
159 MFP_PIN_GPIO76
, /* LCD_VSYNC - LCDID[0] */
162 static void __init
zylonite_detect_lcd_panel(void)
164 unsigned long mfpr_save
[NUM_LCD_DETECT_PINS
];
167 /* save the original MFP settings of these pins and configure
168 * them as GPIO Input, DS01X, Pull Neither, Edge Clear
170 for (i
= 0; i
< NUM_LCD_DETECT_PINS
; i
++) {
171 mfpr_save
[i
] = pxa3xx_mfp_read(lcd_detect_pins
[i
]);
172 pxa3xx_mfp_write(lcd_detect_pins
[i
], 0x8440);
175 for (i
= 0; i
< NUM_LCD_DETECT_PINS
; i
++) {
177 gpio
= mfp_to_gpio(lcd_detect_pins
[i
]);
178 gpio_direction_input(gpio
);
180 if (gpio_get_value(gpio
))
184 /* lcd id, flush out bit 1 */
187 /* lcd orientation, portrait or landscape */
188 lcd_orientation
= (id
>> 6) & 0x1;
190 /* restore the original MFP settings */
191 for (i
= 0; i
< NUM_LCD_DETECT_PINS
; i
++)
192 pxa3xx_mfp_write(lcd_detect_pins
[i
], mfpr_save
[i
]);
195 void __init
zylonite_pxa300_init(void)
197 if (cpu_is_pxa300() || cpu_is_pxa310()) {
199 pxa3xx_mfp_config(ARRAY_AND_SIZE(common_mfp_cfg
));
201 /* detect LCD panel */
202 zylonite_detect_lcd_panel();
204 /* MMC card detect & write protect for controller 0 */
205 zylonite_mmc_slot
[0].gpio_cd
= EXT_GPIO(0);
206 zylonite_mmc_slot
[0].gpio_wp
= EXT_GPIO(2);
209 wm9713_irq
= mfp_to_gpio(MFP_PIN_GPIO26
);
212 if (cpu_is_pxa300()) {
213 pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa300_mfp_cfg
));
214 gpio_eth_irq
= mfp_to_gpio(MFP_PIN_GPIO99
);
217 if (cpu_is_pxa310()) {
218 pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa310_mfp_cfg
));
219 gpio_eth_irq
= mfp_to_gpio(MFP_PIN_GPIO102
);
221 /* MMC card detect & write protect for controller 2 */
222 zylonite_mmc_slot
[2].gpio_cd
= EXT_GPIO(30);
223 zylonite_mmc_slot
[2].gpio_wp
= EXT_GPIO(31);
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