1 /*
2 * linux/arch/arm/mach-omap1/board-palmtt.c
3 *
4 * Modified from board-palmtt2.c
5 *
6 * Modified and amended for Palm Tungsten|T
7 * by Marek Vasut <marek.vasut@gmail.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14 #include <linux/delay.h>
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/platform_device.h>
18 #include <linux/notifier.h>
19 #include <linux/clk.h>
20 #include <linux/input.h>
21 #include <linux/interrupt.h>
22 #include <linux/mtd/mtd.h>
23 #include <linux/mtd/partitions.h>
24 #include <linux/leds.h>
25
26 #include <mach/hardware.h>
27 #include <asm/mach-types.h>
28 #include <asm/mach/arch.h>
29 #include <asm/mach/map.h>
30 #include <asm/mach/flash.h>
31
32 #include <mach/led.h>
33 #include <mach/gpio.h>
34 #include <mach/mux.h>
35 #include <mach/usb.h>
36 #include <mach/dma.h>
37 #include <mach/tc.h>
38 #include <mach/board.h>
39 #include <mach/irda.h>
40 #include <mach/keypad.h>
41 #include <mach/common.h>
42
43 #include <linux/spi/spi.h>
44 #include <linux/spi/ads7846.h>
45
46 #define PALMTT_USBDETECT_GPIO 0
47 #define PALMTT_CABLE_GPIO 1
48 #define PALMTT_LED_GPIO 3
49 #define PALMTT_PENIRQ_GPIO 6
50 #define PALMTT_MMC_WP_GPIO 8
51 #define PALMTT_HDQ_GPIO 11
52
53 static int palmtt_keymap[] = {
54 KEY(0, 0, KEY_ESC),
55 KEY(0, 1, KEY_SPACE),
56 KEY(0, 2, KEY_LEFTCTRL),
57 KEY(0, 3, KEY_TAB),
58 KEY(0, 4, KEY_ENTER),
59 KEY(1, 0, KEY_LEFT),
60 KEY(1, 1, KEY_DOWN),
61 KEY(1, 2, KEY_UP),
62 KEY(1, 3, KEY_RIGHT),
63 KEY(2, 0, KEY_SLEEP),
64 KEY(2, 4, KEY_Y),
65 0
66 };
67
68 static struct mtd_partition palmtt_partitions[] = {
69 {
70 .name = "write8k",
71 .offset = 0,
72 .size = SZ_8K,
73 .mask_flags = 0,
74 },
75 {
76 .name = "PalmOS-BootLoader(ro)",
77 .offset = SZ_8K,
78 .size = 7 * SZ_8K,
79 .mask_flags = MTD_WRITEABLE,
80 },
81 {
82 .name = "u-boot",
83 .offset = MTDPART_OFS_APPEND,
84 .size = 8 * SZ_8K,
85 .mask_flags = 0,
86 },
87 {
88 .name = "PalmOS-FS(ro)",
89 .offset = MTDPART_OFS_APPEND,
90 .size = 7 * SZ_1M + 4 * SZ_64K - 16 * SZ_8K,
91 .mask_flags = MTD_WRITEABLE,
92 },
93 {
94 .name = "u-boot(rez)",
95 .offset = MTDPART_OFS_APPEND,
96 .size = SZ_128K,
97 .mask_flags = 0
98 },
99 {
100 .name = "empty",
101 .offset = MTDPART_OFS_APPEND,
102 .size = MTDPART_SIZ_FULL,
103 .mask_flags = 0
104 }
105 };
106
107 static struct flash_platform_data palmtt_flash_data = {
108 .map_name = "cfi_probe",
109 .width = 2,
110 .parts = palmtt_partitions,
111 .nr_parts = ARRAY_SIZE(palmtt_partitions),
112 };
113
114 static struct resource palmtt_flash_resource = {
115 .start = OMAP_CS0_PHYS,
116 .end = OMAP_CS0_PHYS + SZ_8M - 1,
117 .flags = IORESOURCE_MEM,
118 };
119
120 static struct platform_device palmtt_flash_device = {
121 .name = "omapflash",
122 .id = 0,
123 .dev = {
124 .platform_data = &palmtt_flash_data,
125 },
126 .num_resources = 1,
127 .resource = &palmtt_flash_resource,
128 };
129
130 static struct resource palmtt_kp_resources[] = {
131 [0] = {
132 .start = INT_KEYBOARD,
133 .end = INT_KEYBOARD,
134 .flags = IORESOURCE_IRQ,
135 },
136 };
137
138 static struct omap_kp_platform_data palmtt_kp_data = {
139 .rows = 6,
140 .cols = 3,
141 .keymap = palmtt_keymap,
142 };
143
144 static struct platform_device palmtt_kp_device = {
145 .name = "omap-keypad",
146 .id = -1,
147 .dev = {
148 .platform_data = &palmtt_kp_data,
149 },
150 .num_resources = ARRAY_SIZE(palmtt_kp_resources),
151 .resource = palmtt_kp_resources,
152 };
153
154 static struct platform_device palmtt_lcd_device = {
155 .name = "lcd_palmtt",
156 .id = -1,
157 };
158 static struct omap_irda_config palmtt_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 palmtt_irda_resources[] = {
169 [0] = {
170 .start = INT_UART3,
171 .end = INT_UART3,
172 .flags = IORESOURCE_IRQ,
173 },
174 };
175
176 static struct platform_device palmtt_irda_device = {
177 .name = "omapirda",
178 .id = -1,
179 .dev = {
180 .platform_data = &palmtt_irda_config,
181 },
182 .num_resources = ARRAY_SIZE(palmtt_irda_resources),
183 .resource = palmtt_irda_resources,
184 };
185
186 static struct platform_device palmtt_spi_device = {
187 .name = "spi_palmtt",
188 .id = -1,
189 };
190
191 static struct omap_backlight_config palmtt_backlight_config = {
192 .default_intensity = 0xa0,
193 };
194
195 static struct platform_device palmtt_backlight_device = {
196 .name = "omap-bl",
197 .id = -1,
198 .dev = {
199 .platform_data= &palmtt_backlight_config,
200 },
201 };
202
203 static struct omap_led_config palmtt_led_config[] = {
204 {
205 .cdev = {
206 .name = "palmtt:led0",
207 },
208 .gpio = PALMTT_LED_GPIO,
209 },
210 };
211
212 static struct omap_led_platform_data palmtt_led_data = {
213 .nr_leds = ARRAY_SIZE(palmtt_led_config),
214 .leds = palmtt_led_config,
215 };
216
217 static struct platform_device palmtt_led_device = {
218 .name = "omap-led",
219 .id = -1,
220 .dev = {
221 .platform_data = &palmtt_led_data,
222 },
223 };
224
225 static struct platform_device *palmtt_devices[] __initdata = {
226 &palmtt_flash_device,
227 &palmtt_kp_device,
228 &palmtt_lcd_device,
229 &palmtt_irda_device,
230 &palmtt_spi_device,
231 &palmtt_backlight_device,
232 &palmtt_led_device,
233 };
234
235 static int palmtt_get_pendown_state(void)
236 {
237 return !gpio_get_value(6);
238 }
239
240 static const struct ads7846_platform_data palmtt_ts_info = {
241 .model = 7846,
242 .vref_delay_usecs = 100, /* internal, no capacitor */
243 .x_plate_ohms = 419,
244 .y_plate_ohms = 486,
245 .get_pendown_state = palmtt_get_pendown_state,
246 };
247
248 static struct spi_board_info __initdata palmtt_boardinfo[] = {
249 {
250 /* MicroWire (bus 2) CS0 has an ads7846e */
251 .modalias = "ads7846",
252 .platform_data = &palmtt_ts_info,
253 .irq = OMAP_GPIO_IRQ(6),
254 .max_speed_hz = 120000 /* max sample rate at 3V */
255 * 26 /* command + data + overhead */,
256 .bus_num = 2,
257 .chip_select = 0,
258 }
259 };
260
261 static void __init omap_palmtt_init_irq(void)
262 {
263 omap1_init_common_hw();
264 omap_init_irq();
265 }
266
267 static struct omap_usb_config palmtt_usb_config __initdata = {
268 .register_dev = 1,
269 .hmc_mode = 0,
270 .pins[0] = 2,
271 };
272
273 static struct omap_lcd_config palmtt_lcd_config __initdata = {
274 .ctrl_name = "internal",
275 };
276
277 static struct omap_uart_config palmtt_uart_config __initdata = {
278 .enabled_uarts = (1 << 0) | (1 << 1) | (0 << 2),
279 };
280
281 static struct omap_board_config_kernel palmtt_config[] __initdata = {
282 { OMAP_TAG_LCD, &palmtt_lcd_config },
283 { OMAP_TAG_UART, &palmtt_uart_config },
284 };
285
286 static void __init omap_mpu_wdt_mode(int mode) {
287 if (mode)
288 omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
289 else {
290 omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
291 omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
292 }
293 }
294
295 static void __init omap_palmtt_init(void)
296 {
297 omap_mpu_wdt_mode(0);
298
299 omap_board_config = palmtt_config;
300 omap_board_config_size = ARRAY_SIZE(palmtt_config);
301
302 platform_add_devices(palmtt_devices, ARRAY_SIZE(palmtt_devices));
303
304 spi_register_board_info(palmtt_boardinfo,ARRAY_SIZE(palmtt_boardinfo));
305 omap_serial_init();
306 omap_usb_init(&palmtt_usb_config);
307 omap_register_i2c_bus(1, 100, NULL, 0);
308 }
309
310 static void __init omap_palmtt_map_io(void)
311 {
312 omap1_map_common_io();
313 }
314
315 MACHINE_START(OMAP_PALMTT, "OMAP1510 based Palm Tungsten|T")
316 .phys_io = 0xfff00000,
317 .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
318 .boot_params = 0x10000100,
319 .map_io = omap_palmtt_map_io,
320 .init_irq = omap_palmtt_init_irq,
321 .init_machine = omap_palmtt_init,
322 .timer = &omap_timer,
323 MACHINE_END
324
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