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2c8086a5 | 1 | /* |
2 | * linux/arch/arm/mach-pxa/zylonite_pxa300.c | |
3 | * | |
4 | * PXA300/PXA310 specific support code for the | |
5 | * PXA3xx Development Platform (aka Zylonite) | |
6 | * | |
7 | * Copyright (C) 2007 Marvell Internation Ltd. | |
e9bba8ee | 8 | * 2007-08-21: eric miao <[email protected]> |
2c8086a5 | 9 | * initial version |
10 | * | |
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. | |
14 | */ | |
15 | ||
16 | #include <linux/module.h> | |
17 | #include <linux/kernel.h> | |
18 | #include <linux/init.h> | |
a1f7fc48 | 19 | #include <linux/i2c.h> |
b459396e | 20 | #include <linux/i2c/pxa-i2c.h> |
5877457a | 21 | #include <linux/platform_data/pca953x.h> |
51c62982 | 22 | #include <linux/gpio.h> |
2c8086a5 | 23 | |
51c62982 | 24 | #include <mach/pxa300.h> |
a09e64fb | 25 | #include <mach/zylonite.h> |
2c8086a5 | 26 | |
3d3934c3 | 27 | #include "generic.h" |
2c8086a5 | 28 | |
29 | /* PXA300/PXA310 common configurations */ | |
30 | static mfp_cfg_t common_mfp_cfg[] __initdata = { | |
31 | /* LCD */ | |
32 | GPIO54_LCD_LDD_0, | |
33 | GPIO55_LCD_LDD_1, | |
34 | GPIO56_LCD_LDD_2, | |
35 | GPIO57_LCD_LDD_3, | |
36 | GPIO58_LCD_LDD_4, | |
37 | GPIO59_LCD_LDD_5, | |
38 | GPIO60_LCD_LDD_6, | |
39 | GPIO61_LCD_LDD_7, | |
40 | GPIO62_LCD_LDD_8, | |
41 | GPIO63_LCD_LDD_9, | |
42 | GPIO64_LCD_LDD_10, | |
43 | GPIO65_LCD_LDD_11, | |
44 | GPIO66_LCD_LDD_12, | |
45 | GPIO67_LCD_LDD_13, | |
46 | GPIO68_LCD_LDD_14, | |
47 | GPIO69_LCD_LDD_15, | |
48 | GPIO70_LCD_LDD_16, | |
49 | GPIO71_LCD_LDD_17, | |
50 | GPIO72_LCD_FCLK, | |
51 | GPIO73_LCD_LCLK, | |
52 | GPIO74_LCD_PCLK, | |
53 | GPIO75_LCD_BIAS, | |
54 | GPIO76_LCD_VSYNC, | |
55 | GPIO127_LCD_CS_N, | |
5cca9147 | 56 | GPIO20_PWM3_OUT, /* backlight */ |
2c8086a5 | 57 | |
58 | /* BTUART */ | |
59 | GPIO111_UART2_RTS, | |
a10476d4 | 60 | GPIO112_UART2_RXD | MFP_LPM_EDGE_FALL, |
2c8086a5 | 61 | GPIO113_UART2_TXD, |
a10476d4 | 62 | GPIO114_UART2_CTS | MFP_LPM_EDGE_BOTH, |
2c8086a5 | 63 | |
64 | /* STUART */ | |
65 | GPIO109_UART3_TXD, | |
a10476d4 | 66 | GPIO110_UART3_RXD | MFP_LPM_EDGE_FALL, |
2c8086a5 | 67 | |
68 | /* AC97 */ | |
69 | GPIO23_AC97_nACRESET, | |
70 | GPIO24_AC97_SYSCLK, | |
71 | GPIO29_AC97_BITCLK, | |
72 | GPIO25_AC97_SDATA_IN_0, | |
73 | GPIO27_AC97_SDATA_OUT, | |
74 | GPIO28_AC97_SYNC, | |
15fbc938 | 75 | GPIO17_GPIO, /* SDATA_IN_1 but unused - configure to GPIO */ |
2c8086a5 | 76 | |
58d27fcf MB |
77 | /* SSP3 */ |
78 | GPIO91_SSP3_SCLK, | |
79 | GPIO92_SSP3_FRM, | |
80 | GPIO93_SSP3_TXD, | |
81 | GPIO94_SSP3_RXD, | |
82 | ||
768dec4c MB |
83 | /* WM9713 IRQ */ |
84 | GPIO26_GPIO, | |
85 | ||
2c8086a5 | 86 | /* Keypad */ |
a10476d4 RK |
87 | GPIO107_KP_DKIN_0 | MFP_LPM_EDGE_BOTH, |
88 | GPIO108_KP_DKIN_1 | MFP_LPM_EDGE_BOTH, | |
89 | GPIO115_KP_MKIN_0 | MFP_LPM_EDGE_BOTH, | |
90 | GPIO116_KP_MKIN_1 | MFP_LPM_EDGE_BOTH, | |
91 | GPIO117_KP_MKIN_2 | MFP_LPM_EDGE_BOTH, | |
92 | GPIO118_KP_MKIN_3 | MFP_LPM_EDGE_BOTH, | |
93 | GPIO119_KP_MKIN_4 | MFP_LPM_EDGE_BOTH, | |
94 | GPIO120_KP_MKIN_5 | MFP_LPM_EDGE_BOTH, | |
95 | GPIO2_2_KP_MKIN_6 | MFP_LPM_EDGE_BOTH, | |
96 | GPIO3_2_KP_MKIN_7 | MFP_LPM_EDGE_BOTH, | |
2c8086a5 | 97 | GPIO121_KP_MKOUT_0, |
98 | GPIO122_KP_MKOUT_1, | |
99 | GPIO123_KP_MKOUT_2, | |
100 | GPIO124_KP_MKOUT_3, | |
101 | GPIO125_KP_MKOUT_4, | |
102 | GPIO4_2_KP_MKOUT_5, | |
103 | GPIO5_2_KP_MKOUT_6, | |
104 | GPIO6_2_KP_MKOUT_7, | |
fafc9d3f BW |
105 | |
106 | /* MMC1 */ | |
107 | GPIO3_MMC1_DAT0, | |
a10476d4 | 108 | GPIO4_MMC1_DAT1 | MFP_LPM_EDGE_BOTH, |
fafc9d3f BW |
109 | GPIO5_MMC1_DAT2, |
110 | GPIO6_MMC1_DAT3, | |
111 | GPIO7_MMC1_CLK, | |
112 | GPIO8_MMC1_CMD, /* CMD0 for slot 0 */ | |
113 | GPIO15_GPIO, /* CMD1 default as GPIO for slot 0 */ | |
8d33b055 BW |
114 | |
115 | /* MMC2 */ | |
116 | GPIO9_MMC2_DAT0, | |
a10476d4 | 117 | GPIO10_MMC2_DAT1 | MFP_LPM_EDGE_BOTH, |
8d33b055 BW |
118 | GPIO11_MMC2_DAT2, |
119 | GPIO12_MMC2_DAT3, | |
120 | GPIO13_MMC2_CLK, | |
121 | GPIO14_MMC2_CMD, | |
a1f7fc48 | 122 | |
7ff43535 EM |
123 | /* USB Host */ |
124 | GPIO0_2_USBH_PEN, | |
125 | GPIO1_2_USBH_PWR, | |
126 | ||
a1f7fc48 EM |
127 | /* Standard I2C */ |
128 | GPIO21_I2C_SCL, | |
129 | GPIO22_I2C_SDA, | |
b49e385f EM |
130 | |
131 | /* GPIO */ | |
f91e4906 HZ |
132 | GPIO18_GPIO | MFP_PULL_HIGH, /* GPIO Expander #0 INT_N */ |
133 | GPIO19_GPIO | MFP_PULL_HIGH, /* GPIO Expander #1 INT_N */ | |
2c8086a5 | 134 | }; |
135 | ||
136 | static mfp_cfg_t pxa300_mfp_cfg[] __initdata = { | |
137 | /* FFUART */ | |
a10476d4 | 138 | GPIO30_UART1_RXD | MFP_LPM_EDGE_FALL, |
2c8086a5 | 139 | GPIO31_UART1_TXD, |
140 | GPIO32_UART1_CTS, | |
141 | GPIO37_UART1_RTS, | |
142 | GPIO33_UART1_DCD, | |
a10476d4 | 143 | GPIO34_UART1_DSR | MFP_LPM_EDGE_FALL, |
2c8086a5 | 144 | GPIO35_UART1_RI, |
145 | GPIO36_UART1_DTR, | |
146 | ||
147 | /* Ethernet */ | |
148 | GPIO2_nCS3, | |
149 | GPIO99_GPIO, | |
150 | }; | |
151 | ||
152 | static mfp_cfg_t pxa310_mfp_cfg[] __initdata = { | |
153 | /* FFUART */ | |
a10476d4 | 154 | GPIO99_UART1_RXD | MFP_LPM_EDGE_FALL, |
2c8086a5 | 155 | GPIO100_UART1_TXD, |
156 | GPIO101_UART1_CTS, | |
157 | GPIO106_UART1_RTS, | |
158 | ||
159 | /* Ethernet */ | |
160 | GPIO2_nCS3, | |
161 | GPIO102_GPIO, | |
5a1f21b1 BW |
162 | |
163 | /* MMC3 */ | |
164 | GPIO7_2_MMC3_DAT0, | |
a10476d4 | 165 | GPIO8_2_MMC3_DAT1 | MFP_LPM_EDGE_BOTH, |
5a1f21b1 BW |
166 | GPIO9_2_MMC3_DAT2, |
167 | GPIO10_2_MMC3_DAT3, | |
168 | GPIO103_MMC3_CLK, | |
169 | GPIO105_MMC3_CMD, | |
2c8086a5 | 170 | }; |
171 | ||
172 | #define NUM_LCD_DETECT_PINS 7 | |
173 | ||
174 | static int lcd_detect_pins[] __initdata = { | |
175 | MFP_PIN_GPIO71, /* LCD_LDD_17 - ORIENT */ | |
176 | MFP_PIN_GPIO70, /* LCD_LDD_16 - LCDID[5] */ | |
177 | MFP_PIN_GPIO75, /* LCD_BIAS - LCDID[4] */ | |
178 | MFP_PIN_GPIO73, /* LCD_LCLK - LCDID[3] */ | |
179 | MFP_PIN_GPIO72, /* LCD_FCLK - LCDID[2] */ | |
180 | MFP_PIN_GPIO127,/* LCD_CS_N - LCDID[1] */ | |
181 | MFP_PIN_GPIO76, /* LCD_VSYNC - LCDID[0] */ | |
182 | }; | |
183 | ||
184 | static void __init zylonite_detect_lcd_panel(void) | |
185 | { | |
186 | unsigned long mfpr_save[NUM_LCD_DETECT_PINS]; | |
187 | int i, gpio, id = 0; | |
188 | ||
189 | /* save the original MFP settings of these pins and configure | |
190 | * them as GPIO Input, DS01X, Pull Neither, Edge Clear | |
191 | */ | |
192 | for (i = 0; i < NUM_LCD_DETECT_PINS; i++) { | |
193 | mfpr_save[i] = pxa3xx_mfp_read(lcd_detect_pins[i]); | |
194 | pxa3xx_mfp_write(lcd_detect_pins[i], 0x8440); | |
195 | } | |
196 | ||
197 | for (i = 0; i < NUM_LCD_DETECT_PINS; i++) { | |
198 | id = id << 1; | |
199 | gpio = mfp_to_gpio(lcd_detect_pins[i]); | |
eb906911 | 200 | gpio_request(gpio, "LCD_ID_PINS"); |
2c8086a5 | 201 | gpio_direction_input(gpio); |
202 | ||
203 | if (gpio_get_value(gpio)) | |
204 | id = id | 0x1; | |
eb906911 | 205 | gpio_free(gpio); |
2c8086a5 | 206 | } |
207 | ||
208 | /* lcd id, flush out bit 1 */ | |
209 | lcd_id = id & 0x3d; | |
210 | ||
211 | /* lcd orientation, portrait or landscape */ | |
212 | lcd_orientation = (id >> 6) & 0x1; | |
213 | ||
214 | /* restore the original MFP settings */ | |
215 | for (i = 0; i < NUM_LCD_DETECT_PINS; i++) | |
216 | pxa3xx_mfp_write(lcd_detect_pins[i], mfpr_save[i]); | |
217 | } | |
218 | ||
a1f7fc48 EM |
219 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
220 | static struct pca953x_platform_data gpio_exp[] = { | |
221 | [0] = { | |
222 | .gpio_base = 128, | |
223 | }, | |
224 | [1] = { | |
225 | .gpio_base = 144, | |
226 | }, | |
227 | }; | |
228 | ||
a461a8d2 | 229 | static struct i2c_board_info zylonite_i2c_board_info[] = { |
a1f7fc48 EM |
230 | { |
231 | .type = "pca9539", | |
232 | .addr = 0x74, | |
233 | .platform_data = &gpio_exp[0], | |
6384fdad | 234 | .irq = PXA_GPIO_TO_IRQ(18), |
a1f7fc48 EM |
235 | }, { |
236 | .type = "pca9539", | |
237 | .addr = 0x75, | |
238 | .platform_data = &gpio_exp[1], | |
6384fdad | 239 | .irq = PXA_GPIO_TO_IRQ(19), |
a1f7fc48 EM |
240 | }, |
241 | }; | |
242 | ||
243 | static void __init zylonite_init_i2c(void) | |
244 | { | |
245 | pxa_set_i2c_info(NULL); | |
246 | i2c_register_board_info(0, ARRAY_AND_SIZE(zylonite_i2c_board_info)); | |
247 | } | |
248 | #else | |
249 | static inline void zylonite_init_i2c(void) {} | |
250 | #endif | |
251 | ||
2c8086a5 | 252 | void __init zylonite_pxa300_init(void) |
253 | { | |
254 | if (cpu_is_pxa300() || cpu_is_pxa310()) { | |
255 | /* initialize MFP */ | |
256 | pxa3xx_mfp_config(ARRAY_AND_SIZE(common_mfp_cfg)); | |
257 | ||
258 | /* detect LCD panel */ | |
259 | zylonite_detect_lcd_panel(); | |
260 | ||
768dec4c MB |
261 | /* WM9713 IRQ */ |
262 | wm9713_irq = mfp_to_gpio(MFP_PIN_GPIO26); | |
a1f7fc48 EM |
263 | |
264 | zylonite_init_i2c(); | |
2c8086a5 | 265 | } |
266 | ||
267 | if (cpu_is_pxa300()) { | |
268 | pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa300_mfp_cfg)); | |
269 | gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO99); | |
270 | } | |
271 | ||
272 | if (cpu_is_pxa310()) { | |
273 | pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa310_mfp_cfg)); | |
274 | gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO102); | |
275 | } | |
5c9f50e9 EM |
276 | |
277 | /* GPIOs for Debug LEDs */ | |
278 | gpio_debug_led1 = EXT_GPIO(25); | |
279 | gpio_debug_led2 = EXT_GPIO(26); | |
2c8086a5 | 280 | } |