Merge branch 'next-s3c-pm' of git://aeryn.fluff.org.uk/bjdooks/linux into devel
[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 #define PALMZ71_USBDETECT_GPIO  0
50 #define PALMZ71_PENIRQ_GPIO     6
51 #define PALMZ71_MMC_WP_GPIO     8
52 #define PALMZ71_HDQ_GPIO        11
53
54 #define PALMZ71_HOTSYNC_GPIO    OMAP_MPUIO(1)
55 #define PALMZ71_CABLE_GPIO      OMAP_MPUIO(2)
56 #define PALMZ71_SLIDER_GPIO     OMAP_MPUIO(3)
57 #define PALMZ71_MMC_IN_GPIO     OMAP_MPUIO(4)
58
59 static void __init
60 omap_palmz71_init_irq(void)
61 {
62         omap1_init_common_hw();
63         omap_init_irq();
64         omap_gpio_init();
65 }
66
67 static int palmz71_keymap[] = {
68         KEY(0, 0, KEY_F1),
69         KEY(0, 1, KEY_F2),
70         KEY(0, 2, KEY_F3),
71         KEY(0, 3, KEY_F4),
72         KEY(0, 4, KEY_POWER),
73         KEY(1, 0, KEY_LEFT),
74         KEY(1, 1, KEY_DOWN),
75         KEY(1, 2, KEY_UP),
76         KEY(1, 3, KEY_RIGHT),
77         KEY(1, 4, KEY_ENTER),
78         KEY(2, 0, KEY_CAMERA),
79         0,
80 };
81
82 static struct omap_kp_platform_data palmz71_kp_data = {
83         .rows   = 8,
84         .cols   = 8,
85         .keymap = palmz71_keymap,
86         .rep    = 1,
87         .delay  = 80,
88 };
89
90 static struct resource palmz71_kp_resources[] = {
91         [0] = {
92                 .start  = INT_KEYBOARD,
93                 .end    = INT_KEYBOARD,
94                 .flags  = IORESOURCE_IRQ,
95         },
96 };
97
98 static struct platform_device palmz71_kp_device = {
99         .name   = "omap-keypad",
100         .id     = -1,
101         .dev    = {
102                 .platform_data = &palmz71_kp_data,
103         },
104         .num_resources  = ARRAY_SIZE(palmz71_kp_resources),
105         .resource       = palmz71_kp_resources,
106 };
107
108 static struct mtd_partition palmz71_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
129 static struct flash_platform_data palmz71_rom_data = {
130         .map_name       = "map_rom",
131         .name           = "onboardrom",
132         .width          = 2,
133         .parts          = palmz71_rom_partitions,
134         .nr_parts       = ARRAY_SIZE(palmz71_rom_partitions),
135 };
136
137 static struct resource palmz71_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 palmz71_rom_device = {
144         .name   = "omapflash",
145         .id     = -1,
146         .dev = {
147                 .platform_data = &palmz71_rom_data,
148         },
149         .num_resources  = 1,
150         .resource       = &palmz71_rom_resource,
151 };
152
153 static struct platform_device palmz71_lcd_device = {
154         .name   = "lcd_palmz71",
155         .id     = -1,
156 };
157
158 static struct omap_irda_config palmz71_irda_config = {
159         .transceiver_cap        = IR_SIRMODE,
160         .rx_channel             = OMAP_DMA_UART3_RX,
161         .tx_channel             = OMAP_DMA_UART3_TX,
162         .dest_start             = UART3_THR,
163         .src_start              = UART3_RHR,
164         .tx_trigger             = 0,
165         .rx_trigger             = 0,
166 };
167
168 static struct resource palmz71_irda_resources[] = {
169         [0] = {
170                 .start  = INT_UART3,
171                 .end    = INT_UART3,
172                 .flags  = IORESOURCE_IRQ,
173         },
174 };
175
176 static struct platform_device palmz71_irda_device = {
177         .name   = "omapirda",
178         .id     = -1,
179         .dev = {
180                 .platform_data = &palmz71_irda_config,
181         },
182         .num_resources  = ARRAY_SIZE(palmz71_irda_resources),
183         .resource       = palmz71_irda_resources,
184 };
185
186 static struct platform_device palmz71_spi_device = {
187         .name   = "spi_palmz71",
188         .id     = -1,
189 };
190
191 static struct omap_backlight_config palmz71_backlight_config = {
192         .default_intensity      = 0xa0,
193 };
194
195 static struct platform_device palmz71_backlight_device = {
196         .name   = "omap-bl",
197         .id     = -1,
198         .dev    = {
199                 .platform_data = &palmz71_backlight_config,
200         },
201 };
202
203 static struct platform_device *devices[] __initdata = {
204         &palmz71_rom_device,
205         &palmz71_kp_device,
206         &palmz71_lcd_device,
207         &palmz71_irda_device,
208         &palmz71_spi_device,
209         &palmz71_backlight_device,
210 };
211
212 static int
213 palmz71_get_pendown_state(void)
214 {
215         return !gpio_get_value(PALMZ71_PENIRQ_GPIO);
216 }
217
218 static const struct ads7846_platform_data palmz71_ts_info = {
219         .model                  = 7846,
220         .vref_delay_usecs       = 100,  /* internal, no capacitor */
221         .x_plate_ohms           = 419,
222         .y_plate_ohms           = 486,
223         .get_pendown_state      = palmz71_get_pendown_state,
224 };
225
226 static struct spi_board_info __initdata palmz71_boardinfo[] = { {
227         /* MicroWire (bus 2) CS0 has an ads7846e */
228         .modalias       = "ads7846",
229         .platform_data  = &palmz71_ts_info,
230         .irq            = OMAP_GPIO_IRQ(PALMZ71_PENIRQ_GPIO),
231         .max_speed_hz   = 120000        /* max sample rate at 3V */
232                                 * 26    /* command + data + overhead */,
233         .bus_num        = 2,
234         .chip_select    = 0,
235 } };
236
237 static struct omap_usb_config palmz71_usb_config __initdata = {
238         .register_dev   = 1,    /* Mini-B only receptacle */
239         .hmc_mode       = 0,
240         .pins[0]        = 2,
241 };
242
243 static struct omap_lcd_config palmz71_lcd_config __initdata = {
244         .ctrl_name = "internal",
245 };
246
247 static struct omap_uart_config palmz71_uart_config __initdata = {
248         .enabled_uarts = (1 << 0) | (1 << 1) | (0 << 2),
249 };
250
251 static struct omap_board_config_kernel palmz71_config[] __initdata = {
252         {OMAP_TAG_LCD,  &palmz71_lcd_config},
253         {OMAP_TAG_UART, &palmz71_uart_config},
254 };
255
256 static irqreturn_t
257 palmz71_powercable(int irq, void *dev_id)
258 {
259         if (gpio_get_value(PALMZ71_USBDETECT_GPIO)) {
260                 printk(KERN_INFO "PM: Power cable connected\n");
261                 set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
262                                 IRQ_TYPE_EDGE_FALLING);
263         } else {
264                 printk(KERN_INFO "PM: Power cable disconnected\n");
265                 set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
266                                 IRQ_TYPE_EDGE_RISING);
267         }
268         return IRQ_HANDLED;
269 }
270
271 static void __init
272 omap_mpu_wdt_mode(int mode)
273 {
274         if (mode)
275                 omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
276         else {
277                 omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
278                 omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
279         }
280 }
281
282 static void __init
283 palmz71_gpio_setup(int early)
284 {
285         if (early) {
286                 /* Only set GPIO1 so we have a working serial */
287                 gpio_direction_output(1, 1);
288         } else {
289                 /* Set MMC/SD host WP pin as input */
290                 if (gpio_request(PALMZ71_MMC_WP_GPIO, "MMC WP") < 0) {
291                         printk(KERN_ERR "Could not reserve WP GPIO!\n");
292                         return;
293                 }
294                 gpio_direction_input(PALMZ71_MMC_WP_GPIO);
295
296                 /* Monitor the Power-cable-connected signal */
297                 if (gpio_request(PALMZ71_USBDETECT_GPIO, "USB detect") < 0) {
298                         printk(KERN_ERR
299                                 "Could not reserve cable signal GPIO!\n");
300                         return;
301                 }
302                 gpio_direction_input(PALMZ71_USBDETECT_GPIO);
303                 if (request_irq(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
304                                 palmz71_powercable, IRQF_SAMPLE_RANDOM,
305                                 "palmz71-cable", 0))
306                         printk(KERN_ERR
307                                         "IRQ request for power cable failed!\n");
308                 palmz71_powercable(gpio_to_irq(PALMZ71_USBDETECT_GPIO), 0);
309         }
310 }
311
312 static void __init
313 omap_palmz71_init(void)
314 {
315         palmz71_gpio_setup(1);
316         omap_mpu_wdt_mode(0);
317
318         omap_board_config = palmz71_config;
319         omap_board_config_size = ARRAY_SIZE(palmz71_config);
320
321         platform_add_devices(devices, ARRAY_SIZE(devices));
322
323         spi_register_board_info(palmz71_boardinfo,
324                                 ARRAY_SIZE(palmz71_boardinfo));
325         omap_usb_init(&palmz71_usb_config);
326         omap_serial_init();
327         omap_register_i2c_bus(1, 100, NULL, 0);
328         palmz71_gpio_setup(0);
329 }
330
331 static void __init
332 omap_palmz71_map_io(void)
333 {
334         omap1_map_common_io();
335 }
336
337 MACHINE_START(OMAP_PALMZ71, "OMAP310 based Palm Zire71")
338         .phys_io = 0xfff00000,
339         .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
340         .boot_params = 0x10000100,.map_io = omap_palmz71_map_io,
341         .init_irq = omap_palmz71_init_irq,
342         .init_machine = omap_palmz71_init,
343         .timer = &omap_timer,
344 MACHINE_END