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Marek Vasutec70e8a2006-12-06 17:13:57 -08001/*
2 * linux/arch/arm/mach-omap1/board-palmz71.c
3 *
4 * Modified from board-generic.c
5 *
6 * Support for the Palm Zire71 PDA.
7 *
8 * Original version : Laurent Gonzalez
9 *
10 * Modified for zire71 : Marek Vasut
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License version 2 as
14 * published by the Free Software Foundation.
15 */
16
17#include <linux/delay.h>
Russell King2f8163b2011-07-26 10:53:52 +010018#include <linux/gpio.h>
Marek Vasutec70e8a2006-12-06 17:13:57 -080019#include <linux/kernel.h>
20#include <linux/init.h>
21#include <linux/platform_device.h>
22#include <linux/notifier.h>
23#include <linux/clk.h>
24#include <linux/irq.h>
25#include <linux/input.h>
26#include <linux/interrupt.h>
27#include <linux/mtd/mtd.h>
28#include <linux/mtd/partitions.h>
Ladislav Michl561b0362010-02-15 10:03:32 -080029#include <linux/mtd/physmap.h>
Tomi Valkeinenddba6c72011-09-20 15:23:13 +030030#include <linux/omapfb.h>
Tony Lindgren2e3ee9f2012-02-24 10:34:34 -080031#include <linux/spi/spi.h>
32#include <linux/spi/ads7846.h>
Igor Grinbergcc012722012-08-29 02:18:54 +030033#include <linux/platform_data/omap1_bl.h>
Marek Vasutec70e8a2006-12-06 17:13:57 -080034
Marek Vasutec70e8a2006-12-06 17:13:57 -080035#include <asm/mach-types.h>
36#include <asm/mach/arch.h>
37#include <asm/mach/map.h>
Marek Vasutec70e8a2006-12-06 17:13:57 -080038
Tony Lindgren578fad42012-09-20 11:41:37 -070039#include <mach/flash.h>
Tony Lindgren70c494c2012-09-19 10:46:56 -070040#include <mach/mux.h>
Tony Lindgren45c3eb72012-11-30 08:41:50 -080041#include <linux/omap-dma.h>
Tony Lindgren54b693d2012-10-02 13:39:28 -070042#include <mach/tc.h>
Arnd Bergmann22037472012-08-24 15:21:06 +020043#include <linux/platform_data/keypad-omap.h>
Marek Vasutec70e8a2006-12-06 17:13:57 -080044
Tony Lindgren2e3ee9f2012-02-24 10:34:34 -080045#include <mach/hardware.h>
Tony Lindgrenb924b202012-06-04 00:56:15 -070046#include <mach/usb.h>
Tony Lindgren2e3ee9f2012-02-24 10:34:34 -080047
48#include "common.h"
Marek Vasutec70e8a2006-12-06 17:13:57 -080049
Tony Lindgrenb2830812009-03-23 18:07:35 -070050#define PALMZ71_USBDETECT_GPIO 0
51#define PALMZ71_PENIRQ_GPIO 6
52#define PALMZ71_MMC_WP_GPIO 8
53#define PALMZ71_HDQ_GPIO 11
54
55#define PALMZ71_HOTSYNC_GPIO OMAP_MPUIO(1)
56#define PALMZ71_CABLE_GPIO OMAP_MPUIO(2)
57#define PALMZ71_SLIDER_GPIO OMAP_MPUIO(3)
58#define PALMZ71_MMC_IN_GPIO OMAP_MPUIO(4)
59
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +000060static const unsigned int palmz71_keymap[] = {
Marek Vasutec70e8a2006-12-06 17:13:57 -080061 KEY(0, 0, KEY_F1),
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +000062 KEY(1, 0, KEY_F2),
63 KEY(2, 0, KEY_F3),
64 KEY(3, 0, KEY_F4),
65 KEY(4, 0, KEY_POWER),
66 KEY(0, 1, KEY_LEFT),
Marek Vasutec70e8a2006-12-06 17:13:57 -080067 KEY(1, 1, KEY_DOWN),
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +000068 KEY(2, 1, KEY_UP),
69 KEY(3, 1, KEY_RIGHT),
70 KEY(4, 1, KEY_ENTER),
71 KEY(0, 2, KEY_CAMERA),
72};
73
74static const struct matrix_keymap_data palmz71_keymap_data = {
75 .keymap = palmz71_keymap,
76 .keymap_size = ARRAY_SIZE(palmz71_keymap),
Marek Vasutec70e8a2006-12-06 17:13:57 -080077};
78
79static struct omap_kp_platform_data palmz71_kp_data = {
80 .rows = 8,
81 .cols = 8,
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +000082 .keymap_data = &palmz71_keymap_data,
83 .rep = true,
Marek Vasutec70e8a2006-12-06 17:13:57 -080084 .delay = 80,
85};
86
87static struct resource palmz71_kp_resources[] = {
88 [0] = {
89 .start = INT_KEYBOARD,
90 .end = INT_KEYBOARD,
91 .flags = IORESOURCE_IRQ,
92 },
93};
94
95static struct platform_device palmz71_kp_device = {
96 .name = "omap-keypad",
97 .id = -1,
98 .dev = {
99 .platform_data = &palmz71_kp_data,
100 },
101 .num_resources = ARRAY_SIZE(palmz71_kp_resources),
102 .resource = palmz71_kp_resources,
103};
104
105static struct mtd_partition palmz71_rom_partitions[] = {
106 /* PalmOS "Small ROM", contains the bootloader and the debugger */
107 {
108 .name = "smallrom",
109 .offset = 0,
110 .size = 0xa000,
111 .mask_flags = MTD_WRITEABLE,
112 },
113 /* PalmOS "Big ROM", a filesystem with all the OS code and data */
114 {
115 .name = "bigrom",
116 .offset = SZ_128K,
117 /*
118 * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
119 * 0x7b0000 bytes in the English-only ("enUS") version.
120 */
121 .size = 0x7b0000,
122 .mask_flags = MTD_WRITEABLE,
123 },
124};
125
Ladislav Michl561b0362010-02-15 10:03:32 -0800126static struct physmap_flash_data palmz71_rom_data = {
Marek Vasutec70e8a2006-12-06 17:13:57 -0800127 .width = 2,
Ladislav Michl561b0362010-02-15 10:03:32 -0800128 .set_vpp = omap1_set_vpp,
Marek Vasutec70e8a2006-12-06 17:13:57 -0800129 .parts = palmz71_rom_partitions,
130 .nr_parts = ARRAY_SIZE(palmz71_rom_partitions),
131};
132
133static struct resource palmz71_rom_resource = {
134 .start = OMAP_CS0_PHYS,
135 .end = OMAP_CS0_PHYS + SZ_8M - 1,
136 .flags = IORESOURCE_MEM,
137};
138
139static struct platform_device palmz71_rom_device = {
Ladislav Michl561b0362010-02-15 10:03:32 -0800140 .name = "physmap-flash",
Marek Vasutec70e8a2006-12-06 17:13:57 -0800141 .id = -1,
142 .dev = {
143 .platform_data = &palmz71_rom_data,
144 },
145 .num_resources = 1,
146 .resource = &palmz71_rom_resource,
147};
148
149static struct platform_device palmz71_lcd_device = {
150 .name = "lcd_palmz71",
151 .id = -1,
152};
153
Marek Vasutec70e8a2006-12-06 17:13:57 -0800154static struct platform_device palmz71_spi_device = {
155 .name = "spi_palmz71",
156 .id = -1,
157};
158
Marek Vasutec70e8a2006-12-06 17:13:57 -0800159static struct omap_backlight_config palmz71_backlight_config = {
160 .default_intensity = 0xa0,
161};
162
163static struct platform_device palmz71_backlight_device = {
164 .name = "omap-bl",
165 .id = -1,
166 .dev = {
167 .platform_data = &palmz71_backlight_config,
168 },
169};
170
171static struct platform_device *devices[] __initdata = {
172 &palmz71_rom_device,
173 &palmz71_kp_device,
Marek Vasutec70e8a2006-12-06 17:13:57 -0800174 &palmz71_lcd_device,
Marek Vasutec70e8a2006-12-06 17:13:57 -0800175 &palmz71_spi_device,
176 &palmz71_backlight_device,
177};
178
179static int
180palmz71_get_pendown_state(void)
181{
David Brownell0b84b5c2008-12-10 17:35:25 -0800182 return !gpio_get_value(PALMZ71_PENIRQ_GPIO);
Marek Vasutec70e8a2006-12-06 17:13:57 -0800183}
184
185static const struct ads7846_platform_data palmz71_ts_info = {
186 .model = 7846,
187 .vref_delay_usecs = 100, /* internal, no capacitor */
188 .x_plate_ohms = 419,
189 .y_plate_ohms = 486,
190 .get_pendown_state = palmz71_get_pendown_state,
191};
192
193static struct spi_board_info __initdata palmz71_boardinfo[] = { {
194 /* MicroWire (bus 2) CS0 has an ads7846e */
195 .modalias = "ads7846",
196 .platform_data = &palmz71_ts_info,
Marek Vasutec70e8a2006-12-06 17:13:57 -0800197 .max_speed_hz = 120000 /* max sample rate at 3V */
198 * 26 /* command + data + overhead */,
199 .bus_num = 2,
200 .chip_select = 0,
201} };
202
203static struct omap_usb_config palmz71_usb_config __initdata = {
204 .register_dev = 1, /* Mini-B only receptacle */
205 .hmc_mode = 0,
206 .pins[0] = 2,
207};
208
Marek Vasutec70e8a2006-12-06 17:13:57 -0800209static struct omap_lcd_config palmz71_lcd_config __initdata = {
210 .ctrl_name = "internal",
211};
212
Marek Vasutec70e8a2006-12-06 17:13:57 -0800213static irqreturn_t
214palmz71_powercable(int irq, void *dev_id)
215{
David Brownell0b84b5c2008-12-10 17:35:25 -0800216 if (gpio_get_value(PALMZ71_USBDETECT_GPIO)) {
Marek Vasutec70e8a2006-12-06 17:13:57 -0800217 printk(KERN_INFO "PM: Power cable connected\n");
Thomas Gleixner6845664a2011-03-24 13:25:22 +0100218 irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
219 IRQ_TYPE_EDGE_FALLING);
Marek Vasutec70e8a2006-12-06 17:13:57 -0800220 } else {
221 printk(KERN_INFO "PM: Power cable disconnected\n");
Thomas Gleixner6845664a2011-03-24 13:25:22 +0100222 irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
223 IRQ_TYPE_EDGE_RISING);
Marek Vasutec70e8a2006-12-06 17:13:57 -0800224 }
225 return IRQ_HANDLED;
226}
227
228static void __init
229omap_mpu_wdt_mode(int mode)
230{
231 if (mode)
232 omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
233 else {
234 omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
235 omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
236 }
237}
238
239static void __init
240palmz71_gpio_setup(int early)
241{
242 if (early) {
243 /* Only set GPIO1 so we have a working serial */
David Brownelle918edf2008-12-10 17:35:26 -0800244 gpio_direction_output(1, 1);
Marek Vasutec70e8a2006-12-06 17:13:57 -0800245 } else {
246 /* Set MMC/SD host WP pin as input */
Jarkko Nikulaf2d18fe2008-12-10 17:35:30 -0800247 if (gpio_request(PALMZ71_MMC_WP_GPIO, "MMC WP") < 0) {
Marek Vasutec70e8a2006-12-06 17:13:57 -0800248 printk(KERN_ERR "Could not reserve WP GPIO!\n");
249 return;
250 }
David Brownell40e39252008-12-10 17:35:26 -0800251 gpio_direction_input(PALMZ71_MMC_WP_GPIO);
Marek Vasutec70e8a2006-12-06 17:13:57 -0800252
253 /* Monitor the Power-cable-connected signal */
Jarkko Nikulaf2d18fe2008-12-10 17:35:30 -0800254 if (gpio_request(PALMZ71_USBDETECT_GPIO, "USB detect") < 0) {
Marek Vasutec70e8a2006-12-06 17:13:57 -0800255 printk(KERN_ERR
256 "Could not reserve cable signal GPIO!\n");
257 return;
258 }
David Brownell40e39252008-12-10 17:35:26 -0800259 gpio_direction_input(PALMZ71_USBDETECT_GPIO);
David Brownell15f74b02008-12-10 17:35:26 -0800260 if (request_irq(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
Theodore Ts'o9863fa62012-07-17 14:04:00 -0400261 palmz71_powercable, 0, "palmz71-cable", NULL))
Marek Vasutec70e8a2006-12-06 17:13:57 -0800262 printk(KERN_ERR
263 "IRQ request for power cable failed!\n");
Paul Walmsleya7022d62012-04-13 06:34:28 -0600264 palmz71_powercable(gpio_to_irq(PALMZ71_USBDETECT_GPIO), NULL);
Marek Vasutec70e8a2006-12-06 17:13:57 -0800265 }
266}
267
268static void __init
269omap_palmz71_init(void)
270{
Janusz Krzysztofikc33da3a2009-10-22 14:47:42 -0700271 /* mux pins for uarts */
272 omap_cfg_reg(UART1_TX);
273 omap_cfg_reg(UART1_RTS);
274 omap_cfg_reg(UART2_TX);
275 omap_cfg_reg(UART2_RTS);
276 omap_cfg_reg(UART3_TX);
277 omap_cfg_reg(UART3_RX);
278
Marek Vasutec70e8a2006-12-06 17:13:57 -0800279 palmz71_gpio_setup(1);
280 omap_mpu_wdt_mode(0);
281
Marek Vasutec70e8a2006-12-06 17:13:57 -0800282 platform_add_devices(devices, ARRAY_SIZE(devices));
283
Tarun Kanti DebBarma46a0a542012-03-29 08:41:01 -0700284 palmz71_boardinfo[0].irq = gpio_to_irq(PALMZ71_PENIRQ_GPIO);
Marek Vasutec70e8a2006-12-06 17:13:57 -0800285 spi_register_board_info(palmz71_boardinfo,
286 ARRAY_SIZE(palmz71_boardinfo));
Tony Lindgrendd0cdd82010-07-05 16:31:30 +0300287 omap1_usb_init(&palmz71_usb_config);
Marek Vasutec70e8a2006-12-06 17:13:57 -0800288 omap_serial_init();
Jarkko Nikula1ed16a82007-11-07 06:54:32 +0200289 omap_register_i2c_bus(1, 100, NULL, 0);
Marek Vasutec70e8a2006-12-06 17:13:57 -0800290 palmz71_gpio_setup(0);
Tomi Valkeinenddba6c72011-09-20 15:23:13 +0300291
292 omapfb_set_lcd_config(&palmz71_lcd_config);
Marek Vasutec70e8a2006-12-06 17:13:57 -0800293}
294
Marek Vasutec70e8a2006-12-06 17:13:57 -0800295MACHINE_START(OMAP_PALMZ71, "OMAP310 based Palm Zire71")
Nicolas Pitre246e3892011-07-05 22:38:15 -0400296 .atag_offset = 0x100,
Tony Lindgren7b88e622011-10-05 15:14:02 -0700297 .map_io = omap15xx_map_io,
298 .init_early = omap1_init_early,
Tony Lindgren7b88e622011-10-05 15:14:02 -0700299 .init_irq = omap1_init_irq,
Russell King71ee7da2010-05-23 10:18:16 +0100300 .init_machine = omap_palmz71_init,
Shawn Guo82c3bd02012-04-26 13:49:29 +0800301 .init_late = omap1_init_late,
Stephen Warren6bb27d72012-11-08 12:40:59 -0700302 .init_time = omap1_timer_init,
Russell Kingbaa95882011-11-05 17:06:28 +0000303 .restart = omap1_restart,
Marek Vasutec70e8a2006-12-06 17:13:57 -0800304MACHINE_END