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3179a019 TL |
1 | /* |
2 | * linux/arch/arm/mach-omap1/board-palmte.c | |
3 | * | |
4 | * Modified from board-generic.c | |
5 | * | |
6 | * Support for the Palm Tungsten E PDA. | |
7 | * | |
8 | * Original version : Laurent Gonzalez | |
9 | * | |
6cbdc8c5 | 10 | * Maintainers : http://palmtelinux.sf.net |
3179a019 TL |
11 | * palmtelinux-developpers@lists.sf.net |
12 | * | |
d7730cc0 AZ |
13 | * Copyright (c) 2006 Andrzej Zaborowski <balrog@zabor.org> |
14 | * | |
3179a019 TL |
15 | * This program is free software; you can redistribute it and/or modify |
16 | * it under the terms of the GNU General Public License version 2 as | |
17 | * published by the Free Software Foundation. | |
18 | */ | |
19 | ||
20 | #include <linux/kernel.h> | |
21 | #include <linux/init.h> | |
c3695015 | 22 | #include <linux/input.h> |
3179a019 | 23 | #include <linux/platform_device.h> |
c3695015 AZ |
24 | #include <linux/mtd/mtd.h> |
25 | #include <linux/mtd/partitions.h> | |
561b036a | 26 | #include <linux/mtd/physmap.h> |
c3695015 | 27 | #include <linux/spi/spi.h> |
c3695015 | 28 | #include <linux/interrupt.h> |
d7730cc0 | 29 | #include <linux/apm-emulation.h> |
3179a019 | 30 | |
a09e64fb | 31 | #include <mach/hardware.h> |
3179a019 TL |
32 | #include <asm/mach-types.h> |
33 | #include <asm/mach/arch.h> | |
34 | #include <asm/mach/map.h> | |
35 | ||
a09e64fb | 36 | #include <mach/gpio.h> |
561b036a | 37 | #include <plat/flash.h> |
ce491cf8 TL |
38 | #include <plat/mux.h> |
39 | #include <plat/usb.h> | |
40 | #include <plat/tc.h> | |
41 | #include <plat/dma.h> | |
42 | #include <plat/board.h> | |
43 | #include <plat/irda.h> | |
44 | #include <plat/keypad.h> | |
45 | #include <plat/common.h> | |
3179a019 | 46 | |
b2830810 TL |
47 | #define PALMTE_USBDETECT_GPIO 0 |
48 | #define PALMTE_USB_OR_DC_GPIO 1 | |
49 | #define PALMTE_TSC_GPIO 4 | |
50 | #define PALMTE_PINTDAV_GPIO 6 | |
51 | #define PALMTE_MMC_WP_GPIO 8 | |
52 | #define PALMTE_MMC_POWER_GPIO 9 | |
53 | #define PALMTE_HDQ_GPIO 11 | |
54 | #define PALMTE_HEADPHONES_GPIO 14 | |
55 | #define PALMTE_SPEAKER_GPIO 15 | |
56 | #define PALMTE_DC_GPIO OMAP_MPUIO(2) | |
57 | #define PALMTE_MMC_SWITCH_GPIO OMAP_MPUIO(4) | |
58 | #define PALMTE_MMC1_GPIO OMAP_MPUIO(6) | |
59 | #define PALMTE_MMC2_GPIO OMAP_MPUIO(7) | |
60 | #define PALMTE_MMC3_GPIO OMAP_MPUIO(11) | |
61 | ||
c3695015 | 62 | static void __init omap_palmte_init_irq(void) |
3179a019 | 63 | { |
87bd63f6 | 64 | omap1_init_common_hw(); |
3179a019 | 65 | omap_init_irq(); |
c3695015 | 66 | omap_gpio_init(); |
3179a019 TL |
67 | } |
68 | ||
d7730cc0 AZ |
69 | static const int palmte_keymap[] = { |
70 | KEY(0, 0, KEY_F1), /* Calendar */ | |
71 | KEY(0, 1, KEY_F2), /* Contacts */ | |
72 | KEY(0, 2, KEY_F3), /* Tasks List */ | |
73 | KEY(0, 3, KEY_F4), /* Note Pad */ | |
c3695015 AZ |
74 | KEY(0, 4, KEY_POWER), |
75 | KEY(1, 0, KEY_LEFT), | |
76 | KEY(1, 1, KEY_DOWN), | |
77 | KEY(1, 2, KEY_UP), | |
78 | KEY(1, 3, KEY_RIGHT), | |
ec44dfa8 | 79 | KEY(1, 4, KEY_ENTER), |
c3695015 AZ |
80 | 0, |
81 | }; | |
82 | ||
83 | static struct omap_kp_platform_data palmte_kp_data = { | |
84 | .rows = 8, | |
85 | .cols = 8, | |
d7730cc0 | 86 | .keymap = (int *) palmte_keymap, |
c3695015 AZ |
87 | .rep = 1, |
88 | .delay = 12, | |
89 | }; | |
90 | ||
91 | static struct resource palmte_kp_resources[] = { | |
92 | [0] = { | |
93 | .start = INT_KEYBOARD, | |
94 | .end = INT_KEYBOARD, | |
95 | .flags = IORESOURCE_IRQ, | |
96 | }, | |
97 | }; | |
98 | ||
99 | static struct platform_device palmte_kp_device = { | |
100 | .name = "omap-keypad", | |
101 | .id = -1, | |
102 | .dev = { | |
103 | .platform_data = &palmte_kp_data, | |
104 | }, | |
105 | .num_resources = ARRAY_SIZE(palmte_kp_resources), | |
106 | .resource = palmte_kp_resources, | |
107 | }; | |
108 | ||
109 | static struct mtd_partition palmte_rom_partitions[] = { | |
110 | /* PalmOS "Small ROM", contains the bootloader and the debugger */ | |
111 | { | |
112 | .name = "smallrom", | |
113 | .offset = 0, | |
114 | .size = 0xa000, | |
115 | .mask_flags = MTD_WRITEABLE, | |
116 | }, | |
117 | /* PalmOS "Big ROM", a filesystem with all the OS code and data */ | |
118 | { | |
119 | .name = "bigrom", | |
120 | .offset = SZ_128K, | |
121 | /* | |
122 | * 0x5f0000 bytes big in the multi-language ("EFIGS") version, | |
123 | * 0x7b0000 bytes in the English-only ("enUS") version. | |
124 | */ | |
125 | .size = 0x7b0000, | |
126 | .mask_flags = MTD_WRITEABLE, | |
127 | }, | |
128 | }; | |
129 | ||
561b036a | 130 | static struct physmap_flash_data palmte_rom_data = { |
c3695015 | 131 | .width = 2, |
561b036a | 132 | .set_vpp = omap1_set_vpp, |
c3695015 AZ |
133 | .parts = palmte_rom_partitions, |
134 | .nr_parts = ARRAY_SIZE(palmte_rom_partitions), | |
135 | }; | |
136 | ||
137 | static struct resource palmte_rom_resource = { | |
138 | .start = OMAP_CS0_PHYS, | |
139 | .end = OMAP_CS0_PHYS + SZ_8M - 1, | |
140 | .flags = IORESOURCE_MEM, | |
141 | }; | |
142 | ||
143 | static struct platform_device palmte_rom_device = { | |
561b036a | 144 | .name = "physmap-flash", |
c3695015 AZ |
145 | .id = -1, |
146 | .dev = { | |
147 | .platform_data = &palmte_rom_data, | |
148 | }, | |
149 | .num_resources = 1, | |
150 | .resource = &palmte_rom_resource, | |
151 | }; | |
152 | ||
9b6553cd TL |
153 | static struct platform_device palmte_lcd_device = { |
154 | .name = "lcd_palmte", | |
155 | .id = -1, | |
156 | }; | |
157 | ||
c3695015 AZ |
158 | static struct omap_backlight_config palmte_backlight_config = { |
159 | .default_intensity = 0xa0, | |
160 | }; | |
161 | ||
162 | static struct platform_device palmte_backlight_device = { | |
163 | .name = "omap-bl", | |
164 | .id = -1, | |
165 | .dev = { | |
166 | .platform_data = &palmte_backlight_config, | |
167 | }, | |
168 | }; | |
169 | ||
170 | static struct omap_irda_config palmte_irda_config = { | |
171 | .transceiver_cap = IR_SIRMODE, | |
172 | .rx_channel = OMAP_DMA_UART3_RX, | |
173 | .tx_channel = OMAP_DMA_UART3_TX, | |
174 | .dest_start = UART3_THR, | |
175 | .src_start = UART3_RHR, | |
176 | .tx_trigger = 0, | |
177 | .rx_trigger = 0, | |
178 | }; | |
179 | ||
180 | static struct resource palmte_irda_resources[] = { | |
181 | [0] = { | |
182 | .start = INT_UART3, | |
183 | .end = INT_UART3, | |
184 | .flags = IORESOURCE_IRQ, | |
185 | }, | |
186 | }; | |
187 | ||
188 | static struct platform_device palmte_irda_device = { | |
189 | .name = "omapirda", | |
190 | .id = -1, | |
191 | .dev = { | |
192 | .platform_data = &palmte_irda_config, | |
193 | }, | |
194 | .num_resources = ARRAY_SIZE(palmte_irda_resources), | |
195 | .resource = palmte_irda_resources, | |
196 | }; | |
197 | ||
d7730cc0 | 198 | static struct platform_device *palmte_devices[] __initdata = { |
c3695015 AZ |
199 | &palmte_rom_device, |
200 | &palmte_kp_device, | |
9b6553cd | 201 | &palmte_lcd_device, |
c3695015 AZ |
202 | &palmte_backlight_device, |
203 | &palmte_irda_device, | |
9b6553cd TL |
204 | }; |
205 | ||
3179a019 | 206 | static struct omap_usb_config palmte_usb_config __initdata = { |
c3695015 | 207 | .register_dev = 1, /* Mini-B only receptacle */ |
3179a019 | 208 | .hmc_mode = 0, |
c3695015 | 209 | .pins[0] = 2, |
3179a019 TL |
210 | }; |
211 | ||
3179a019 | 212 | static struct omap_lcd_config palmte_lcd_config __initdata = { |
3179a019 TL |
213 | .ctrl_name = "internal", |
214 | }; | |
215 | ||
c3695015 AZ |
216 | #ifdef CONFIG_APM |
217 | /* | |
218 | * Values measured in 10 minute intervals averaged over 10 samples. | |
219 | * May differ slightly from device to device but should be accurate | |
220 | * enough to give basic idea of battery life left and trigger | |
221 | * potential alerts. | |
222 | */ | |
223 | static const int palmte_battery_sample[] = { | |
224 | 2194, 2157, 2138, 2120, | |
225 | 2104, 2089, 2075, 2061, | |
226 | 2048, 2038, 2026, 2016, | |
227 | 2008, 1998, 1989, 1980, | |
228 | 1970, 1958, 1945, 1928, | |
229 | 1910, 1888, 1860, 1827, | |
230 | 1791, 1751, 1709, 1656, | |
231 | }; | |
232 | ||
233 | #define INTERVAL 10 | |
234 | #define BATTERY_HIGH_TRESHOLD 66 | |
235 | #define BATTERY_LOW_TRESHOLD 33 | |
236 | ||
237 | static void palmte_get_power_status(struct apm_power_info *info, int *battery) | |
238 | { | |
239 | int charging, batt, hi, lo, mid; | |
240 | ||
0b84b5ca | 241 | charging = !gpio_get_value(PALMTE_DC_GPIO); |
c3695015 AZ |
242 | batt = battery[0]; |
243 | if (charging) | |
244 | batt -= 60; | |
245 | ||
246 | hi = ARRAY_SIZE(palmte_battery_sample); | |
247 | lo = 0; | |
248 | ||
249 | info->battery_flag = 0; | |
250 | info->units = APM_UNITS_MINS; | |
251 | ||
252 | if (batt > palmte_battery_sample[lo]) { | |
253 | info->battery_life = 100; | |
254 | info->time = INTERVAL * ARRAY_SIZE(palmte_battery_sample); | |
255 | } else if (batt <= palmte_battery_sample[hi - 1]) { | |
256 | info->battery_life = 0; | |
257 | info->time = 0; | |
258 | } else { | |
259 | while (hi > lo + 1) { | |
d7730cc0 | 260 | mid = (hi + lo) >> 1; |
c3695015 AZ |
261 | if (batt <= palmte_battery_sample[mid]) |
262 | lo = mid; | |
263 | else | |
264 | hi = mid; | |
265 | } | |
266 | ||
267 | mid = palmte_battery_sample[lo] - palmte_battery_sample[hi]; | |
268 | hi = palmte_battery_sample[lo] - batt; | |
269 | info->battery_life = 100 - (100 * lo + 100 * hi / mid) / | |
270 | ARRAY_SIZE(palmte_battery_sample); | |
271 | info->time = INTERVAL * (ARRAY_SIZE(palmte_battery_sample) - | |
272 | lo) - INTERVAL * hi / mid; | |
273 | } | |
274 | ||
275 | if (charging) { | |
276 | info->ac_line_status = APM_AC_ONLINE; | |
277 | info->battery_status = APM_BATTERY_STATUS_CHARGING; | |
278 | info->battery_flag |= APM_BATTERY_FLAG_CHARGING; | |
279 | } else { | |
280 | info->ac_line_status = APM_AC_OFFLINE; | |
281 | if (info->battery_life > BATTERY_HIGH_TRESHOLD) | |
282 | info->battery_status = APM_BATTERY_STATUS_HIGH; | |
283 | else if (info->battery_life > BATTERY_LOW_TRESHOLD) | |
284 | info->battery_status = APM_BATTERY_STATUS_LOW; | |
285 | else | |
286 | info->battery_status = APM_BATTERY_STATUS_CRITICAL; | |
287 | } | |
288 | ||
289 | if (info->battery_life > BATTERY_HIGH_TRESHOLD) | |
290 | info->battery_flag |= APM_BATTERY_FLAG_HIGH; | |
291 | else if (info->battery_life > BATTERY_LOW_TRESHOLD) | |
292 | info->battery_flag |= APM_BATTERY_FLAG_LOW; | |
293 | else | |
294 | info->battery_flag |= APM_BATTERY_FLAG_CRITICAL; | |
295 | } | |
296 | #else | |
297 | #define palmte_get_power_status NULL | |
298 | #endif | |
299 | ||
d7730cc0 | 300 | static struct omap_board_config_kernel palmte_config[] __initdata = { |
c3695015 | 301 | { OMAP_TAG_LCD, &palmte_lcd_config }, |
3179a019 TL |
302 | }; |
303 | ||
c3695015 AZ |
304 | static struct spi_board_info palmte_spi_info[] __initdata = { |
305 | { | |
306 | .modalias = "tsc2102", | |
307 | .bus_num = 2, /* uWire (officially) */ | |
308 | .chip_select = 0, /* As opposed to 3 */ | |
309 | .irq = OMAP_GPIO_IRQ(PALMTE_PINTDAV_GPIO), | |
c3695015 AZ |
310 | .max_speed_hz = 8000000, |
311 | }, | |
312 | }; | |
313 | ||
d7730cc0 AZ |
314 | static void palmte_headphones_detect(void *data, int state) |
315 | { | |
316 | if (state) { | |
c3695015 | 317 | /* Headphones connected, disable speaker */ |
0b84b5ca | 318 | gpio_set_value(PALMTE_SPEAKER_GPIO, 0); |
c3695015 | 319 | printk(KERN_INFO "PM: speaker off\n"); |
d7730cc0 | 320 | } else { |
c3695015 | 321 | /* Headphones unplugged, re-enable speaker */ |
0b84b5ca | 322 | gpio_set_value(PALMTE_SPEAKER_GPIO, 1); |
c3695015 AZ |
323 | printk(KERN_INFO "PM: speaker on\n"); |
324 | } | |
c3695015 AZ |
325 | } |
326 | ||
d7730cc0 | 327 | static void __init palmte_misc_gpio_setup(void) |
c3695015 | 328 | { |
d7730cc0 | 329 | /* Set TSC2102 PINTDAV pin as input (used by TSC2102 driver) */ |
f2d18fea | 330 | if (gpio_request(PALMTE_PINTDAV_GPIO, "TSC2102 PINTDAV") < 0) { |
c3695015 AZ |
331 | printk(KERN_ERR "Could not reserve PINTDAV GPIO!\n"); |
332 | return; | |
333 | } | |
40e3925b | 334 | gpio_direction_input(PALMTE_PINTDAV_GPIO); |
c3695015 | 335 | |
d7730cc0 | 336 | /* Set USB-or-DC-IN pin as input (unused) */ |
f2d18fea | 337 | if (gpio_request(PALMTE_USB_OR_DC_GPIO, "USB/DC-IN") < 0) { |
c3695015 AZ |
338 | printk(KERN_ERR "Could not reserve cable signal GPIO!\n"); |
339 | return; | |
340 | } | |
40e3925b | 341 | gpio_direction_input(PALMTE_USB_OR_DC_GPIO); |
c3695015 AZ |
342 | } |
343 | ||
344 | static void __init omap_palmte_init(void) | |
3179a019 | 345 | { |
c33da3a8 JK |
346 | /* mux pins for uarts */ |
347 | omap_cfg_reg(UART1_TX); | |
348 | omap_cfg_reg(UART1_RTS); | |
349 | omap_cfg_reg(UART2_TX); | |
350 | omap_cfg_reg(UART2_RTS); | |
351 | omap_cfg_reg(UART3_TX); | |
352 | omap_cfg_reg(UART3_RX); | |
353 | ||
3179a019 TL |
354 | omap_board_config = palmte_config; |
355 | omap_board_config_size = ARRAY_SIZE(palmte_config); | |
9b6553cd | 356 | |
d7730cc0 | 357 | platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices)); |
c3695015 AZ |
358 | |
359 | spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info)); | |
d7730cc0 | 360 | palmte_misc_gpio_setup(); |
c3695015 | 361 | omap_serial_init(); |
dd0cdd88 | 362 | omap1_usb_init(&palmte_usb_config); |
1ed16a86 | 363 | omap_register_i2c_bus(1, 100, NULL, 0); |
3179a019 TL |
364 | } |
365 | ||
c3695015 | 366 | static void __init omap_palmte_map_io(void) |
3179a019 | 367 | { |
87bd63f6 | 368 | omap1_map_common_io(); |
3179a019 TL |
369 | } |
370 | ||
371 | MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E") | |
3179a019 TL |
372 | .phys_io = 0xfff00000, |
373 | .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc, | |
374 | .boot_params = 0x10000100, | |
c3695015 AZ |
375 | .map_io = omap_palmte_map_io, |
376 | .init_irq = omap_palmte_init_irq, | |
377 | .init_machine = omap_palmte_init, | |
3179a019 TL |
378 | .timer = &omap_timer, |
379 | MACHINE_END |