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Tony Lindgren3179a012005-11-10 14:26:48 +00001/*
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 *
Simon Arlott6cbdc8c2007-05-11 20:40:30 +010010 * Maintainers : http://palmtelinux.sf.net
Tony Lindgren3179a012005-11-10 14:26:48 +000011 * palmtelinux-developpers@lists.sf.net
12 *
Andrzej Zaborowskid7730cc2006-12-07 17:13:51 -080013 * Copyright (c) 2006 Andrzej Zaborowski <balrog@zabor.org>
14 *
Tony Lindgren3179a012005-11-10 14:26:48 +000015 * 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>
Andrzej Zaborowskic3695012006-12-06 17:13:51 -080022#include <linux/input.h>
Tony Lindgren3179a012005-11-10 14:26:48 +000023#include <linux/platform_device.h>
Andrzej Zaborowskic3695012006-12-06 17:13:51 -080024#include <linux/mtd/mtd.h>
25#include <linux/mtd/partitions.h>
26#include <linux/spi/spi.h>
Andrzej Zaborowskic3695012006-12-06 17:13:51 -080027#include <linux/interrupt.h>
Andrzej Zaborowskid7730cc2006-12-07 17:13:51 -080028#include <linux/apm-emulation.h>
Tony Lindgren3179a012005-11-10 14:26:48 +000029
Russell Kinga09e64f2008-08-05 16:14:15 +010030#include <mach/hardware.h>
Tony Lindgren3179a012005-11-10 14:26:48 +000031#include <asm/mach-types.h>
32#include <asm/mach/arch.h>
33#include <asm/mach/map.h>
Andrzej Zaborowskic3695012006-12-06 17:13:51 -080034#include <asm/mach/flash.h>
Tony Lindgren3179a012005-11-10 14:26:48 +000035
Russell Kinga09e64f2008-08-05 16:14:15 +010036#include <mach/gpio.h>
Tony Lindgrence491cf2009-10-20 09:40:47 -070037#include <plat/mux.h>
38#include <plat/usb.h>
39#include <plat/tc.h>
40#include <plat/dma.h>
41#include <plat/board.h>
42#include <plat/irda.h>
43#include <plat/keypad.h>
44#include <plat/common.h>
Tony Lindgren3179a012005-11-10 14:26:48 +000045
Tony Lindgrenb2830812009-03-23 18:07:35 -070046#define PALMTE_USBDETECT_GPIO 0
47#define PALMTE_USB_OR_DC_GPIO 1
48#define PALMTE_TSC_GPIO 4
49#define PALMTE_PINTDAV_GPIO 6
50#define PALMTE_MMC_WP_GPIO 8
51#define PALMTE_MMC_POWER_GPIO 9
52#define PALMTE_HDQ_GPIO 11
53#define PALMTE_HEADPHONES_GPIO 14
54#define PALMTE_SPEAKER_GPIO 15
55#define PALMTE_DC_GPIO OMAP_MPUIO(2)
56#define PALMTE_MMC_SWITCH_GPIO OMAP_MPUIO(4)
57#define PALMTE_MMC1_GPIO OMAP_MPUIO(6)
58#define PALMTE_MMC2_GPIO OMAP_MPUIO(7)
59#define PALMTE_MMC3_GPIO OMAP_MPUIO(11)
60
Andrzej Zaborowskic3695012006-12-06 17:13:51 -080061static void __init omap_palmte_init_irq(void)
Tony Lindgren3179a012005-11-10 14:26:48 +000062{
Tony Lindgren87bd63f2006-02-08 22:06:46 +000063 omap1_init_common_hw();
Tony Lindgren3179a012005-11-10 14:26:48 +000064 omap_init_irq();
Andrzej Zaborowskic3695012006-12-06 17:13:51 -080065 omap_gpio_init();
Tony Lindgren3179a012005-11-10 14:26:48 +000066}
67
Andrzej Zaborowskid7730cc2006-12-07 17:13:51 -080068static const int palmte_keymap[] = {
69 KEY(0, 0, KEY_F1), /* Calendar */
70 KEY(0, 1, KEY_F2), /* Contacts */
71 KEY(0, 2, KEY_F3), /* Tasks List */
72 KEY(0, 3, KEY_F4), /* Note Pad */
Andrzej Zaborowskic3695012006-12-06 17:13:51 -080073 KEY(0, 4, KEY_POWER),
74 KEY(1, 0, KEY_LEFT),
75 KEY(1, 1, KEY_DOWN),
76 KEY(1, 2, KEY_UP),
77 KEY(1, 3, KEY_RIGHT),
Eduardo Valentinec44dfa2008-03-27 11:09:42 -040078 KEY(1, 4, KEY_ENTER),
Andrzej Zaborowskic3695012006-12-06 17:13:51 -080079 0,
80};
81
82static struct omap_kp_platform_data palmte_kp_data = {
83 .rows = 8,
84 .cols = 8,
Andrzej Zaborowskid7730cc2006-12-07 17:13:51 -080085 .keymap = (int *) palmte_keymap,
Andrzej Zaborowskic3695012006-12-06 17:13:51 -080086 .rep = 1,
87 .delay = 12,
88};
89
90static struct resource palmte_kp_resources[] = {
91 [0] = {
92 .start = INT_KEYBOARD,
93 .end = INT_KEYBOARD,
94 .flags = IORESOURCE_IRQ,
95 },
96};
97
98static struct platform_device palmte_kp_device = {
99 .name = "omap-keypad",
100 .id = -1,
101 .dev = {
102 .platform_data = &palmte_kp_data,
103 },
104 .num_resources = ARRAY_SIZE(palmte_kp_resources),
105 .resource = palmte_kp_resources,
106};
107
108static struct mtd_partition palmte_rom_partitions[] = {
109 /* PalmOS "Small ROM", contains the bootloader and the debugger */
110 {
111 .name = "smallrom",
112 .offset = 0,
113 .size = 0xa000,
114 .mask_flags = MTD_WRITEABLE,
115 },
116 /* PalmOS "Big ROM", a filesystem with all the OS code and data */
117 {
118 .name = "bigrom",
119 .offset = SZ_128K,
120 /*
121 * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
122 * 0x7b0000 bytes in the English-only ("enUS") version.
123 */
124 .size = 0x7b0000,
125 .mask_flags = MTD_WRITEABLE,
126 },
127};
128
129static struct flash_platform_data palmte_rom_data = {
130 .map_name = "map_rom",
131 .width = 2,
132 .parts = palmte_rom_partitions,
133 .nr_parts = ARRAY_SIZE(palmte_rom_partitions),
134};
135
136static struct resource palmte_rom_resource = {
137 .start = OMAP_CS0_PHYS,
138 .end = OMAP_CS0_PHYS + SZ_8M - 1,
139 .flags = IORESOURCE_MEM,
140};
141
142static struct platform_device palmte_rom_device = {
143 .name = "omapflash",
144 .id = -1,
145 .dev = {
146 .platform_data = &palmte_rom_data,
147 },
148 .num_resources = 1,
149 .resource = &palmte_rom_resource,
150};
151
Tony Lindgren9b6553c2006-04-02 17:46:30 +0100152static struct platform_device palmte_lcd_device = {
153 .name = "lcd_palmte",
154 .id = -1,
155};
156
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800157static struct omap_backlight_config palmte_backlight_config = {
158 .default_intensity = 0xa0,
159};
160
161static struct platform_device palmte_backlight_device = {
162 .name = "omap-bl",
163 .id = -1,
164 .dev = {
165 .platform_data = &palmte_backlight_config,
166 },
167};
168
169static struct omap_irda_config palmte_irda_config = {
170 .transceiver_cap = IR_SIRMODE,
171 .rx_channel = OMAP_DMA_UART3_RX,
172 .tx_channel = OMAP_DMA_UART3_TX,
173 .dest_start = UART3_THR,
174 .src_start = UART3_RHR,
175 .tx_trigger = 0,
176 .rx_trigger = 0,
177};
178
179static struct resource palmte_irda_resources[] = {
180 [0] = {
181 .start = INT_UART3,
182 .end = INT_UART3,
183 .flags = IORESOURCE_IRQ,
184 },
185};
186
187static struct platform_device palmte_irda_device = {
188 .name = "omapirda",
189 .id = -1,
190 .dev = {
191 .platform_data = &palmte_irda_config,
192 },
193 .num_resources = ARRAY_SIZE(palmte_irda_resources),
194 .resource = palmte_irda_resources,
195};
196
Andrzej Zaborowskid7730cc2006-12-07 17:13:51 -0800197static struct platform_device *palmte_devices[] __initdata = {
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800198 &palmte_rom_device,
199 &palmte_kp_device,
Tony Lindgren9b6553c2006-04-02 17:46:30 +0100200 &palmte_lcd_device,
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800201 &palmte_backlight_device,
202 &palmte_irda_device,
Tony Lindgren9b6553c2006-04-02 17:46:30 +0100203};
204
Tony Lindgren3179a012005-11-10 14:26:48 +0000205static struct omap_usb_config palmte_usb_config __initdata = {
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800206 .register_dev = 1, /* Mini-B only receptacle */
Tony Lindgren3179a012005-11-10 14:26:48 +0000207 .hmc_mode = 0,
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800208 .pins[0] = 2,
Tony Lindgren3179a012005-11-10 14:26:48 +0000209};
210
Tony Lindgren3179a012005-11-10 14:26:48 +0000211static struct omap_lcd_config palmte_lcd_config __initdata = {
Tony Lindgren3179a012005-11-10 14:26:48 +0000212 .ctrl_name = "internal",
213};
214
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800215#ifdef CONFIG_APM
216/*
217 * Values measured in 10 minute intervals averaged over 10 samples.
218 * May differ slightly from device to device but should be accurate
219 * enough to give basic idea of battery life left and trigger
220 * potential alerts.
221 */
222static const int palmte_battery_sample[] = {
223 2194, 2157, 2138, 2120,
224 2104, 2089, 2075, 2061,
225 2048, 2038, 2026, 2016,
226 2008, 1998, 1989, 1980,
227 1970, 1958, 1945, 1928,
228 1910, 1888, 1860, 1827,
229 1791, 1751, 1709, 1656,
230};
231
232#define INTERVAL 10
233#define BATTERY_HIGH_TRESHOLD 66
234#define BATTERY_LOW_TRESHOLD 33
235
236static void palmte_get_power_status(struct apm_power_info *info, int *battery)
237{
238 int charging, batt, hi, lo, mid;
239
David Brownell0b84b5c2008-12-10 17:35:25 -0800240 charging = !gpio_get_value(PALMTE_DC_GPIO);
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800241 batt = battery[0];
242 if (charging)
243 batt -= 60;
244
245 hi = ARRAY_SIZE(palmte_battery_sample);
246 lo = 0;
247
248 info->battery_flag = 0;
249 info->units = APM_UNITS_MINS;
250
251 if (batt > palmte_battery_sample[lo]) {
252 info->battery_life = 100;
253 info->time = INTERVAL * ARRAY_SIZE(palmte_battery_sample);
254 } else if (batt <= palmte_battery_sample[hi - 1]) {
255 info->battery_life = 0;
256 info->time = 0;
257 } else {
258 while (hi > lo + 1) {
Andrzej Zaborowskid7730cc2006-12-07 17:13:51 -0800259 mid = (hi + lo) >> 1;
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800260 if (batt <= palmte_battery_sample[mid])
261 lo = mid;
262 else
263 hi = mid;
264 }
265
266 mid = palmte_battery_sample[lo] - palmte_battery_sample[hi];
267 hi = palmte_battery_sample[lo] - batt;
268 info->battery_life = 100 - (100 * lo + 100 * hi / mid) /
269 ARRAY_SIZE(palmte_battery_sample);
270 info->time = INTERVAL * (ARRAY_SIZE(palmte_battery_sample) -
271 lo) - INTERVAL * hi / mid;
272 }
273
274 if (charging) {
275 info->ac_line_status = APM_AC_ONLINE;
276 info->battery_status = APM_BATTERY_STATUS_CHARGING;
277 info->battery_flag |= APM_BATTERY_FLAG_CHARGING;
278 } else {
279 info->ac_line_status = APM_AC_OFFLINE;
280 if (info->battery_life > BATTERY_HIGH_TRESHOLD)
281 info->battery_status = APM_BATTERY_STATUS_HIGH;
282 else if (info->battery_life > BATTERY_LOW_TRESHOLD)
283 info->battery_status = APM_BATTERY_STATUS_LOW;
284 else
285 info->battery_status = APM_BATTERY_STATUS_CRITICAL;
286 }
287
288 if (info->battery_life > BATTERY_HIGH_TRESHOLD)
289 info->battery_flag |= APM_BATTERY_FLAG_HIGH;
290 else if (info->battery_life > BATTERY_LOW_TRESHOLD)
291 info->battery_flag |= APM_BATTERY_FLAG_LOW;
292 else
293 info->battery_flag |= APM_BATTERY_FLAG_CRITICAL;
294}
295#else
296#define palmte_get_power_status NULL
297#endif
298
Andrzej Zaborowskid7730cc2006-12-07 17:13:51 -0800299static struct omap_board_config_kernel palmte_config[] __initdata = {
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800300 { OMAP_TAG_LCD, &palmte_lcd_config },
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800301};
302
303static struct spi_board_info palmte_spi_info[] __initdata = {
304 {
305 .modalias = "tsc2102",
306 .bus_num = 2, /* uWire (officially) */
307 .chip_select = 0, /* As opposed to 3 */
308 .irq = OMAP_GPIO_IRQ(PALMTE_PINTDAV_GPIO),
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800309 .max_speed_hz = 8000000,
310 },
311};
312
Andrzej Zaborowskid7730cc2006-12-07 17:13:51 -0800313static void palmte_headphones_detect(void *data, int state)
314{
315 if (state) {
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800316 /* Headphones connected, disable speaker */
David Brownell0b84b5c2008-12-10 17:35:25 -0800317 gpio_set_value(PALMTE_SPEAKER_GPIO, 0);
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800318 printk(KERN_INFO "PM: speaker off\n");
Andrzej Zaborowskid7730cc2006-12-07 17:13:51 -0800319 } else {
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800320 /* Headphones unplugged, re-enable speaker */
David Brownell0b84b5c2008-12-10 17:35:25 -0800321 gpio_set_value(PALMTE_SPEAKER_GPIO, 1);
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800322 printk(KERN_INFO "PM: speaker on\n");
323 }
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800324}
325
Andrzej Zaborowskid7730cc2006-12-07 17:13:51 -0800326static void __init palmte_misc_gpio_setup(void)
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800327{
Andrzej Zaborowskid7730cc2006-12-07 17:13:51 -0800328 /* Set TSC2102 PINTDAV pin as input (used by TSC2102 driver) */
Jarkko Nikulaf2d18fe2008-12-10 17:35:30 -0800329 if (gpio_request(PALMTE_PINTDAV_GPIO, "TSC2102 PINTDAV") < 0) {
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800330 printk(KERN_ERR "Could not reserve PINTDAV GPIO!\n");
331 return;
332 }
David Brownell40e39252008-12-10 17:35:26 -0800333 gpio_direction_input(PALMTE_PINTDAV_GPIO);
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800334
Andrzej Zaborowskid7730cc2006-12-07 17:13:51 -0800335 /* Set USB-or-DC-IN pin as input (unused) */
Jarkko Nikulaf2d18fe2008-12-10 17:35:30 -0800336 if (gpio_request(PALMTE_USB_OR_DC_GPIO, "USB/DC-IN") < 0) {
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800337 printk(KERN_ERR "Could not reserve cable signal GPIO!\n");
338 return;
339 }
David Brownell40e39252008-12-10 17:35:26 -0800340 gpio_direction_input(PALMTE_USB_OR_DC_GPIO);
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800341}
342
343static void __init omap_palmte_init(void)
Tony Lindgren3179a012005-11-10 14:26:48 +0000344{
Janusz Krzysztofikc33da3a2009-10-22 14:47:42 -0700345 /* mux pins for uarts */
346 omap_cfg_reg(UART1_TX);
347 omap_cfg_reg(UART1_RTS);
348 omap_cfg_reg(UART2_TX);
349 omap_cfg_reg(UART2_RTS);
350 omap_cfg_reg(UART3_TX);
351 omap_cfg_reg(UART3_RX);
352
Tony Lindgren3179a012005-11-10 14:26:48 +0000353 omap_board_config = palmte_config;
354 omap_board_config_size = ARRAY_SIZE(palmte_config);
Tony Lindgren9b6553c2006-04-02 17:46:30 +0100355
Andrzej Zaborowskid7730cc2006-12-07 17:13:51 -0800356 platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800357
358 spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
Andrzej Zaborowskid7730cc2006-12-07 17:13:51 -0800359 palmte_misc_gpio_setup();
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800360 omap_serial_init();
Felipe Balbib0b5aa32009-03-23 18:07:49 -0700361 omap_usb_init(&palmte_usb_config);
Jarkko Nikula1ed16a82007-11-07 06:54:32 +0200362 omap_register_i2c_bus(1, 100, NULL, 0);
Tony Lindgren3179a012005-11-10 14:26:48 +0000363}
364
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800365static void __init omap_palmte_map_io(void)
Tony Lindgren3179a012005-11-10 14:26:48 +0000366{
Tony Lindgren87bd63f2006-02-08 22:06:46 +0000367 omap1_map_common_io();
Tony Lindgren3179a012005-11-10 14:26:48 +0000368}
369
370MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
Tony Lindgren3179a012005-11-10 14:26:48 +0000371 .phys_io = 0xfff00000,
372 .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
373 .boot_params = 0x10000100,
Andrzej Zaborowskic3695012006-12-06 17:13:51 -0800374 .map_io = omap_palmte_map_io,
375 .init_irq = omap_palmte_init_irq,
376 .init_machine = omap_palmte_init,
Tony Lindgren3179a012005-11-10 14:26:48 +0000377 .timer = &omap_timer,
378MACHINE_END