Merge branch 'topic/pcxhr' into for-linus
[linux-2.6] / arch / arm / mach-omap1 / board-palmz71.c
1 /*
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>
18 #include <linux/kernel.h>
19 #include <linux/init.h>
20 #include <linux/platform_device.h>
21 #include <linux/notifier.h>
22 #include <linux/clk.h>
23 #include <linux/irq.h>
24 #include <linux/input.h>
25 #include <linux/interrupt.h>
26 #include <linux/mtd/mtd.h>
27 #include <linux/mtd/partitions.h>
28
29 #include <mach/hardware.h>
30 #include <asm/mach-types.h>
31 #include <asm/mach/arch.h>
32 #include <asm/mach/map.h>
33 #include <asm/mach/flash.h>
34
35 #include <mach/gpio.h>
36 #include <mach/mux.h>
37 #include <mach/usb.h>
38 #include <mach/dma.h>
39 #include <mach/tc.h>
40 #include <mach/board.h>
41 #include <mach/irda.h>
42 #include <mach/keypad.h>
43 #include <mach/common.h>
44 #include <mach/omap-alsa.h>
45
46 #include <linux/spi/spi.h>
47 #include <linux/spi/ads7846.h>
48
49 static void __init
50 omap_palmz71_init_irq(void)
51 {
52         omap1_init_common_hw();
53         omap_init_irq();
54         omap_gpio_init();
55 }
56
57 static int palmz71_keymap[] = {
58         KEY(0, 0, KEY_F1),
59         KEY(0, 1, KEY_F2),
60         KEY(0, 2, KEY_F3),
61         KEY(0, 3, KEY_F4),
62         KEY(0, 4, KEY_POWER),
63         KEY(1, 0, KEY_LEFT),
64         KEY(1, 1, KEY_DOWN),
65         KEY(1, 2, KEY_UP),
66         KEY(1, 3, KEY_RIGHT),
67         KEY(1, 4, KEY_ENTER),
68         KEY(2, 0, KEY_CAMERA),
69         0,
70 };
71
72 static struct omap_kp_platform_data palmz71_kp_data = {
73         .rows   = 8,
74         .cols   = 8,
75         .keymap = palmz71_keymap,
76         .rep    = 1,
77         .delay  = 80,
78 };
79
80 static struct resource palmz71_kp_resources[] = {
81         [0] = {
82                 .start  = INT_KEYBOARD,
83                 .end    = INT_KEYBOARD,
84                 .flags  = IORESOURCE_IRQ,
85         },
86 };
87
88 static struct platform_device palmz71_kp_device = {
89         .name   = "omap-keypad",
90         .id     = -1,
91         .dev    = {
92                 .platform_data = &palmz71_kp_data,
93         },
94         .num_resources  = ARRAY_SIZE(palmz71_kp_resources),
95         .resource       = palmz71_kp_resources,
96 };
97
98 static struct mtd_partition palmz71_rom_partitions[] = {
99         /* PalmOS "Small ROM", contains the bootloader and the debugger */
100         {
101                 .name           = "smallrom",
102                 .offset         = 0,
103                 .size           = 0xa000,
104                 .mask_flags     = MTD_WRITEABLE,
105         },
106         /* PalmOS "Big ROM", a filesystem with all the OS code and data */
107         {
108                 .name   = "bigrom",
109                 .offset = SZ_128K,
110                 /*
111                  * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
112                  * 0x7b0000 bytes in the English-only ("enUS") version.
113                  */
114                 .size           = 0x7b0000,
115                 .mask_flags     = MTD_WRITEABLE,
116         },
117 };
118
119 static struct flash_platform_data palmz71_rom_data = {
120         .map_name       = "map_rom",
121         .name           = "onboardrom",
122         .width          = 2,
123         .parts          = palmz71_rom_partitions,
124         .nr_parts       = ARRAY_SIZE(palmz71_rom_partitions),
125 };
126
127 static struct resource palmz71_rom_resource = {
128         .start  = OMAP_CS0_PHYS,
129         .end    = OMAP_CS0_PHYS + SZ_8M - 1,
130         .flags  = IORESOURCE_MEM,
131 };
132
133 static struct platform_device palmz71_rom_device = {
134         .name   = "omapflash",
135         .id     = -1,
136         .dev = {
137                 .platform_data = &palmz71_rom_data,
138         },
139         .num_resources  = 1,
140         .resource       = &palmz71_rom_resource,
141 };
142
143 static struct platform_device palmz71_lcd_device = {
144         .name   = "lcd_palmz71",
145         .id     = -1,
146 };
147
148 static struct omap_irda_config palmz71_irda_config = {
149         .transceiver_cap        = IR_SIRMODE,
150         .rx_channel             = OMAP_DMA_UART3_RX,
151         .tx_channel             = OMAP_DMA_UART3_TX,
152         .dest_start             = UART3_THR,
153         .src_start              = UART3_RHR,
154         .tx_trigger             = 0,
155         .rx_trigger             = 0,
156 };
157
158 static struct resource palmz71_irda_resources[] = {
159         [0] = {
160                 .start  = INT_UART3,
161                 .end    = INT_UART3,
162                 .flags  = IORESOURCE_IRQ,
163         },
164 };
165
166 static struct platform_device palmz71_irda_device = {
167         .name   = "omapirda",
168         .id     = -1,
169         .dev = {
170                 .platform_data = &palmz71_irda_config,
171         },
172         .num_resources  = ARRAY_SIZE(palmz71_irda_resources),
173         .resource       = palmz71_irda_resources,
174 };
175
176 static struct platform_device palmz71_spi_device = {
177         .name   = "spi_palmz71",
178         .id     = -1,
179 };
180
181 static struct omap_backlight_config palmz71_backlight_config = {
182         .default_intensity      = 0xa0,
183 };
184
185 static struct platform_device palmz71_backlight_device = {
186         .name   = "omap-bl",
187         .id     = -1,
188         .dev    = {
189                 .platform_data = &palmz71_backlight_config,
190         },
191 };
192
193 static struct platform_device *devices[] __initdata = {
194         &palmz71_rom_device,
195         &palmz71_kp_device,
196         &palmz71_lcd_device,
197         &palmz71_irda_device,
198         &palmz71_spi_device,
199         &palmz71_backlight_device,
200 };
201
202 static int
203 palmz71_get_pendown_state(void)
204 {
205         return !gpio_get_value(PALMZ71_PENIRQ_GPIO);
206 }
207
208 static const struct ads7846_platform_data palmz71_ts_info = {
209         .model                  = 7846,
210         .vref_delay_usecs       = 100,  /* internal, no capacitor */
211         .x_plate_ohms           = 419,
212         .y_plate_ohms           = 486,
213         .get_pendown_state      = palmz71_get_pendown_state,
214 };
215
216 static struct spi_board_info __initdata palmz71_boardinfo[] = { {
217         /* MicroWire (bus 2) CS0 has an ads7846e */
218         .modalias       = "ads7846",
219         .platform_data  = &palmz71_ts_info,
220         .irq            = OMAP_GPIO_IRQ(PALMZ71_PENIRQ_GPIO),
221         .max_speed_hz   = 120000        /* max sample rate at 3V */
222                                 * 26    /* command + data + overhead */,
223         .bus_num        = 2,
224         .chip_select    = 0,
225 } };
226
227 static struct omap_usb_config palmz71_usb_config __initdata = {
228         .register_dev   = 1,    /* Mini-B only receptacle */
229         .hmc_mode       = 0,
230         .pins[0]        = 2,
231 };
232
233 static struct omap_lcd_config palmz71_lcd_config __initdata = {
234         .ctrl_name = "internal",
235 };
236
237 static struct omap_uart_config palmz71_uart_config __initdata = {
238         .enabled_uarts = (1 << 0) | (1 << 1) | (0 << 2),
239 };
240
241 static struct omap_board_config_kernel palmz71_config[] __initdata = {
242         {OMAP_TAG_USB,  &palmz71_usb_config},
243         {OMAP_TAG_LCD,  &palmz71_lcd_config},
244         {OMAP_TAG_UART, &palmz71_uart_config},
245 };
246
247 static irqreturn_t
248 palmz71_powercable(int irq, void *dev_id)
249 {
250         if (gpio_get_value(PALMZ71_USBDETECT_GPIO)) {
251                 printk(KERN_INFO "PM: Power cable connected\n");
252                 set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
253                                 IRQ_TYPE_EDGE_FALLING);
254         } else {
255                 printk(KERN_INFO "PM: Power cable disconnected\n");
256                 set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
257                                 IRQ_TYPE_EDGE_RISING);
258         }
259         return IRQ_HANDLED;
260 }
261
262 static void __init
263 omap_mpu_wdt_mode(int mode)
264 {
265         if (mode)
266                 omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
267         else {
268                 omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
269                 omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
270         }
271 }
272
273 static void __init
274 palmz71_gpio_setup(int early)
275 {
276         if (early) {
277                 /* Only set GPIO1 so we have a working serial */
278                 gpio_direction_output(1, 1);
279         } else {
280                 /* Set MMC/SD host WP pin as input */
281                 if (gpio_request(PALMZ71_MMC_WP_GPIO, "MMC WP") < 0) {
282                         printk(KERN_ERR "Could not reserve WP GPIO!\n");
283                         return;
284                 }
285                 gpio_direction_input(PALMZ71_MMC_WP_GPIO);
286
287                 /* Monitor the Power-cable-connected signal */
288                 if (gpio_request(PALMZ71_USBDETECT_GPIO, "USB detect") < 0) {
289                         printk(KERN_ERR
290                                 "Could not reserve cable signal GPIO!\n");
291                         return;
292                 }
293                 gpio_direction_input(PALMZ71_USBDETECT_GPIO);
294                 if (request_irq(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
295                                 palmz71_powercable, IRQF_SAMPLE_RANDOM,
296                                 "palmz71-cable", 0))
297                         printk(KERN_ERR
298                                         "IRQ request for power cable failed!\n");
299                 palmz71_powercable(gpio_to_irq(PALMZ71_USBDETECT_GPIO), 0);
300         }
301 }
302
303 static void __init
304 omap_palmz71_init(void)
305 {
306         palmz71_gpio_setup(1);
307         omap_mpu_wdt_mode(0);
308
309         omap_board_config = palmz71_config;
310         omap_board_config_size = ARRAY_SIZE(palmz71_config);
311
312         platform_add_devices(devices, ARRAY_SIZE(devices));
313
314         spi_register_board_info(palmz71_boardinfo,
315                                 ARRAY_SIZE(palmz71_boardinfo));
316         omap_serial_init();
317         omap_register_i2c_bus(1, 100, NULL, 0);
318         palmz71_gpio_setup(0);
319 }
320
321 static void __init
322 omap_palmz71_map_io(void)
323 {
324         omap1_map_common_io();
325 }
326
327 MACHINE_START(OMAP_PALMZ71, "OMAP310 based Palm Zire71")
328         .phys_io = 0xfff00000,
329         .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
330         .boot_params = 0x10000100,.map_io = omap_palmz71_map_io,
331         .init_irq = omap_palmz71_init_irq,
332         .init_machine = omap_palmz71_init,
333         .timer = &omap_timer,
334 MACHINE_END