Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
[linux-2.6.git] / 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 #include <linux/mtd/physmap.h>
29
30 #include <mach/hardware.h>
31 #include <asm/mach-types.h>
32 #include <asm/mach/arch.h>
33 #include <asm/mach/map.h>
34
35 #include <mach/gpio.h>
36 #include <plat/flash.h>
37 #include <plat/mux.h>
38 #include <plat/usb.h>
39 #include <plat/dma.h>
40 #include <plat/tc.h>
41 #include <plat/board.h>
42 #include <plat/irda.h>
43 #include <plat/keypad.h>
44 #include <plat/common.h>
45 #include <plat/omap-alsa.h>
46
47 #include <linux/spi/spi.h>
48 #include <linux/spi/ads7846.h>
49
50 #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
60 static void __init
61 omap_palmz71_init_irq(void)
62 {
63         omap1_init_common_hw();
64         omap1_init_irq();
65 }
66
67 static const unsigned int palmz71_keymap[] = {
68         KEY(0, 0, KEY_F1),
69         KEY(1, 0, KEY_F2),
70         KEY(2, 0, KEY_F3),
71         KEY(3, 0, KEY_F4),
72         KEY(4, 0, KEY_POWER),
73         KEY(0, 1, KEY_LEFT),
74         KEY(1, 1, KEY_DOWN),
75         KEY(2, 1, KEY_UP),
76         KEY(3, 1, KEY_RIGHT),
77         KEY(4, 1, KEY_ENTER),
78         KEY(0, 2, KEY_CAMERA),
79 };
80
81 static const struct matrix_keymap_data palmz71_keymap_data = {
82         .keymap         = palmz71_keymap,
83         .keymap_size    = ARRAY_SIZE(palmz71_keymap),
84 };
85
86 static struct omap_kp_platform_data palmz71_kp_data = {
87         .rows   = 8,
88         .cols   = 8,
89         .keymap_data    = &palmz71_keymap_data,
90         .rep    = true,
91         .delay  = 80,
92 };
93
94 static struct resource palmz71_kp_resources[] = {
95         [0] = {
96                 .start  = INT_KEYBOARD,
97                 .end    = INT_KEYBOARD,
98                 .flags  = IORESOURCE_IRQ,
99         },
100 };
101
102 static struct platform_device palmz71_kp_device = {
103         .name   = "omap-keypad",
104         .id     = -1,
105         .dev    = {
106                 .platform_data = &palmz71_kp_data,
107         },
108         .num_resources  = ARRAY_SIZE(palmz71_kp_resources),
109         .resource       = palmz71_kp_resources,
110 };
111
112 static struct mtd_partition palmz71_rom_partitions[] = {
113         /* PalmOS "Small ROM", contains the bootloader and the debugger */
114         {
115                 .name           = "smallrom",
116                 .offset         = 0,
117                 .size           = 0xa000,
118                 .mask_flags     = MTD_WRITEABLE,
119         },
120         /* PalmOS "Big ROM", a filesystem with all the OS code and data */
121         {
122                 .name   = "bigrom",
123                 .offset = SZ_128K,
124                 /*
125                  * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
126                  * 0x7b0000 bytes in the English-only ("enUS") version.
127                  */
128                 .size           = 0x7b0000,
129                 .mask_flags     = MTD_WRITEABLE,
130         },
131 };
132
133 static struct physmap_flash_data palmz71_rom_data = {
134         .width          = 2,
135         .set_vpp        = omap1_set_vpp,
136         .parts          = palmz71_rom_partitions,
137         .nr_parts       = ARRAY_SIZE(palmz71_rom_partitions),
138 };
139
140 static struct resource palmz71_rom_resource = {
141         .start  = OMAP_CS0_PHYS,
142         .end    = OMAP_CS0_PHYS + SZ_8M - 1,
143         .flags  = IORESOURCE_MEM,
144 };
145
146 static struct platform_device palmz71_rom_device = {
147         .name   = "physmap-flash",
148         .id     = -1,
149         .dev = {
150                 .platform_data = &palmz71_rom_data,
151         },
152         .num_resources  = 1,
153         .resource       = &palmz71_rom_resource,
154 };
155
156 static struct platform_device palmz71_lcd_device = {
157         .name   = "lcd_palmz71",
158         .id     = -1,
159 };
160
161 static struct omap_irda_config palmz71_irda_config = {
162         .transceiver_cap        = IR_SIRMODE,
163         .rx_channel             = OMAP_DMA_UART3_RX,
164         .tx_channel             = OMAP_DMA_UART3_TX,
165         .dest_start             = UART3_THR,
166         .src_start              = UART3_RHR,
167         .tx_trigger             = 0,
168         .rx_trigger             = 0,
169 };
170
171 static struct resource palmz71_irda_resources[] = {
172         [0] = {
173                 .start  = INT_UART3,
174                 .end    = INT_UART3,
175                 .flags  = IORESOURCE_IRQ,
176         },
177 };
178
179 static struct platform_device palmz71_irda_device = {
180         .name   = "omapirda",
181         .id     = -1,
182         .dev = {
183                 .platform_data = &palmz71_irda_config,
184         },
185         .num_resources  = ARRAY_SIZE(palmz71_irda_resources),
186         .resource       = palmz71_irda_resources,
187 };
188
189 static struct platform_device palmz71_spi_device = {
190         .name   = "spi_palmz71",
191         .id     = -1,
192 };
193
194 static struct omap_backlight_config palmz71_backlight_config = {
195         .default_intensity      = 0xa0,
196 };
197
198 static struct platform_device palmz71_backlight_device = {
199         .name   = "omap-bl",
200         .id     = -1,
201         .dev    = {
202                 .platform_data = &palmz71_backlight_config,
203         },
204 };
205
206 static struct platform_device *devices[] __initdata = {
207         &palmz71_rom_device,
208         &palmz71_kp_device,
209         &palmz71_lcd_device,
210         &palmz71_irda_device,
211         &palmz71_spi_device,
212         &palmz71_backlight_device,
213 };
214
215 static int
216 palmz71_get_pendown_state(void)
217 {
218         return !gpio_get_value(PALMZ71_PENIRQ_GPIO);
219 }
220
221 static const struct ads7846_platform_data palmz71_ts_info = {
222         .model                  = 7846,
223         .vref_delay_usecs       = 100,  /* internal, no capacitor */
224         .x_plate_ohms           = 419,
225         .y_plate_ohms           = 486,
226         .get_pendown_state      = palmz71_get_pendown_state,
227 };
228
229 static struct spi_board_info __initdata palmz71_boardinfo[] = { {
230         /* MicroWire (bus 2) CS0 has an ads7846e */
231         .modalias       = "ads7846",
232         .platform_data  = &palmz71_ts_info,
233         .irq            = OMAP_GPIO_IRQ(PALMZ71_PENIRQ_GPIO),
234         .max_speed_hz   = 120000        /* max sample rate at 3V */
235                                 * 26    /* command + data + overhead */,
236         .bus_num        = 2,
237         .chip_select    = 0,
238 } };
239
240 static struct omap_usb_config palmz71_usb_config __initdata = {
241         .register_dev   = 1,    /* Mini-B only receptacle */
242         .hmc_mode       = 0,
243         .pins[0]        = 2,
244 };
245
246 static struct omap_lcd_config palmz71_lcd_config __initdata = {
247         .ctrl_name = "internal",
248 };
249
250 static struct omap_board_config_kernel palmz71_config[] __initdata = {
251         {OMAP_TAG_LCD,  &palmz71_lcd_config},
252 };
253
254 static irqreturn_t
255 palmz71_powercable(int irq, void *dev_id)
256 {
257         if (gpio_get_value(PALMZ71_USBDETECT_GPIO)) {
258                 printk(KERN_INFO "PM: Power cable connected\n");
259                 irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
260                                  IRQ_TYPE_EDGE_FALLING);
261         } else {
262                 printk(KERN_INFO "PM: Power cable disconnected\n");
263                 irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
264                                  IRQ_TYPE_EDGE_RISING);
265         }
266         return IRQ_HANDLED;
267 }
268
269 static void __init
270 omap_mpu_wdt_mode(int mode)
271 {
272         if (mode)
273                 omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
274         else {
275                 omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
276                 omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
277         }
278 }
279
280 static void __init
281 palmz71_gpio_setup(int early)
282 {
283         if (early) {
284                 /* Only set GPIO1 so we have a working serial */
285                 gpio_direction_output(1, 1);
286         } else {
287                 /* Set MMC/SD host WP pin as input */
288                 if (gpio_request(PALMZ71_MMC_WP_GPIO, "MMC WP") < 0) {
289                         printk(KERN_ERR "Could not reserve WP GPIO!\n");
290                         return;
291                 }
292                 gpio_direction_input(PALMZ71_MMC_WP_GPIO);
293
294                 /* Monitor the Power-cable-connected signal */
295                 if (gpio_request(PALMZ71_USBDETECT_GPIO, "USB detect") < 0) {
296                         printk(KERN_ERR
297                                 "Could not reserve cable signal GPIO!\n");
298                         return;
299                 }
300                 gpio_direction_input(PALMZ71_USBDETECT_GPIO);
301                 if (request_irq(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
302                                 palmz71_powercable, IRQF_SAMPLE_RANDOM,
303                                 "palmz71-cable", 0))
304                         printk(KERN_ERR
305                                         "IRQ request for power cable failed!\n");
306                 palmz71_powercable(gpio_to_irq(PALMZ71_USBDETECT_GPIO), 0);
307         }
308 }
309
310 static void __init
311 omap_palmz71_init(void)
312 {
313         /* mux pins for uarts */
314         omap_cfg_reg(UART1_TX);
315         omap_cfg_reg(UART1_RTS);
316         omap_cfg_reg(UART2_TX);
317         omap_cfg_reg(UART2_RTS);
318         omap_cfg_reg(UART3_TX);
319         omap_cfg_reg(UART3_RX);
320
321         palmz71_gpio_setup(1);
322         omap_mpu_wdt_mode(0);
323
324         omap_board_config = palmz71_config;
325         omap_board_config_size = ARRAY_SIZE(palmz71_config);
326
327         platform_add_devices(devices, ARRAY_SIZE(devices));
328
329         spi_register_board_info(palmz71_boardinfo,
330                                 ARRAY_SIZE(palmz71_boardinfo));
331         omap1_usb_init(&palmz71_usb_config);
332         omap_serial_init();
333         omap_register_i2c_bus(1, 100, NULL, 0);
334         palmz71_gpio_setup(0);
335 }
336
337 static void __init
338 omap_palmz71_map_io(void)
339 {
340         omap1_map_common_io();
341 }
342
343 MACHINE_START(OMAP_PALMZ71, "OMAP310 based Palm Zire71")
344         .boot_params    = 0x10000100,
345         .map_io         = omap_palmz71_map_io,
346         .reserve        = omap_reserve,
347         .init_irq       = omap_palmz71_init_irq,
348         .init_machine   = omap_palmz71_init,
349         .timer          = &omap1_timer,
350 MACHINE_END