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 static int palmtt_keymap[] = {
47 KEY(0, 0, KEY_ESC),
48 KEY(0, 1, KEY_SPACE),
49 KEY(0, 2, KEY_LEFTCTRL),
50 KEY(0, 3, KEY_TAB),
51 KEY(0, 4, KEY_ENTER),
52 KEY(1, 0, KEY_LEFT),
53 KEY(1, 1, KEY_DOWN),
54 KEY(1, 2, KEY_UP),
55 KEY(1, 3, KEY_RIGHT),
56 KEY(2, 0, KEY_SLEEP),
57 KEY(2, 4, KEY_Y),
58 0
59 };
60
61 static struct mtd_partition palmtt_partitions[] = {
62 {
63 .name = "write8k",
64 .offset = 0,
65 .size = SZ_8K,
66 .mask_flags = 0,
67 },
68 {
69 .name = "PalmOS-BootLoader(ro)",
70 .offset = SZ_8K,
71 .size = 7 * SZ_8K,
72 .mask_flags = MTD_WRITEABLE,
73 },
74 {
75 .name = "u-boot",
76 .offset = MTDPART_OFS_APPEND,
77 .size = 8 * SZ_8K,
78 .mask_flags = 0,
79 },
80 {
81 .name = "PalmOS-FS(ro)",
82 .offset = MTDPART_OFS_APPEND,
83 .size = 7 * SZ_1M + 4 * SZ_64K - 16 * SZ_8K,
84 .mask_flags = MTD_WRITEABLE,
85 },
86 {
87 .name = "u-boot(rez)",
88 .offset = MTDPART_OFS_APPEND,
89 .size = SZ_128K,
90 .mask_flags = 0
91 },
92 {
93 .name = "empty",
94 .offset = MTDPART_OFS_APPEND,
95 .size = MTDPART_SIZ_FULL,
96 .mask_flags = 0
97 }
98 };
99
100 static struct flash_platform_data palmtt_flash_data = {
101 .map_name = "cfi_probe",
102 .width = 2,
103 .parts = palmtt_partitions,
104 .nr_parts = ARRAY_SIZE(palmtt_partitions),
105 };
106
107 static struct resource palmtt_flash_resource = {
108 .start = OMAP_CS0_PHYS,
109 .end = OMAP_CS0_PHYS + SZ_8M - 1,
110 .flags = IORESOURCE_MEM,
111 };
112
113 static struct platform_device palmtt_flash_device = {
114 .name = "omapflash",
115 .id = 0,
116 .dev = {
117 .platform_data = &palmtt_flash_data,
118 },
119 .num_resources = 1,
120 .resource = &palmtt_flash_resource,
121 };
122
123 static struct resource palmtt_kp_resources[] = {
124 [0] = {
125 .start = INT_KEYBOARD,
126 .end = INT_KEYBOARD,
127 .flags = IORESOURCE_IRQ,
128 },
129 };
130
131 static struct omap_kp_platform_data palmtt_kp_data = {
132 .rows = 6,
133 .cols = 3,
134 .keymap = palmtt_keymap,
135 };
136
137 static struct platform_device palmtt_kp_device = {
138 .name = "omap-keypad",
139 .id = -1,
140 .dev = {
141 .platform_data = &palmtt_kp_data,
142 },
143 .num_resources = ARRAY_SIZE(palmtt_kp_resources),
144 .resource = palmtt_kp_resources,
145 };
146
147 static struct platform_device palmtt_lcd_device = {
148 .name = "lcd_palmtt",
149 .id = -1,
150 };
151 static struct omap_irda_config palmtt_irda_config = {
152 .transceiver_cap = IR_SIRMODE,
153 .rx_channel = OMAP_DMA_UART3_RX,
154 .tx_channel = OMAP_DMA_UART3_TX,
155 .dest_start = UART3_THR,
156 .src_start = UART3_RHR,
157 .tx_trigger = 0,
158 .rx_trigger = 0,
159 };
160
161 static struct resource palmtt_irda_resources[] = {
162 [0] = {
163 .start = INT_UART3,
164 .end = INT_UART3,
165 .flags = IORESOURCE_IRQ,
166 },
167 };
168
169 static struct platform_device palmtt_irda_device = {
170 .name = "omapirda",
171 .id = -1,
172 .dev = {
173 .platform_data = &palmtt_irda_config,
174 },
175 .num_resources = ARRAY_SIZE(palmtt_irda_resources),
176 .resource = palmtt_irda_resources,
177 };
178
179 static struct platform_device palmtt_spi_device = {
180 .name = "spi_palmtt",
181 .id = -1,
182 };
183
184 static struct omap_backlight_config palmtt_backlight_config = {
185 .default_intensity = 0xa0,
186 };
187
188 static struct platform_device palmtt_backlight_device = {
189 .name = "omap-bl",
190 .id = -1,
191 .dev = {
192 .platform_data= &palmtt_backlight_config,
193 },
194 };
195
196 static struct omap_led_config palmtt_led_config[] = {
197 {
198 .cdev = {
199 .name = "palmtt:led0",
200 },
201 .gpio = PALMTT_LED_GPIO,
202 },
203 };
204
205 static struct omap_led_platform_data palmtt_led_data = {
206 .nr_leds = ARRAY_SIZE(palmtt_led_config),
207 .leds = palmtt_led_config,
208 };
209
210 static struct platform_device palmtt_led_device = {
211 .name = "omap-led",
212 .id = -1,
213 .dev = {
214 .platform_data = &palmtt_led_data,
215 },
216 };
217
218 static struct platform_device *palmtt_devices[] __initdata = {
219 &palmtt_flash_device,
220 &palmtt_kp_device,
221 &palmtt_lcd_device,
222 &palmtt_irda_device,
223 &palmtt_spi_device,
224 &palmtt_backlight_device,
225 &palmtt_led_device,
226 };
227
palmtt_get_pendown_state(void)228 static int palmtt_get_pendown_state(void)
229 {
230 return !gpio_get_value(6);
231 }
232
233 static const struct ads7846_platform_data palmtt_ts_info = {
234 .model = 7846,
235 .vref_delay_usecs = 100, /* internal, no capacitor */
236 .x_plate_ohms = 419,
237 .y_plate_ohms = 486,
238 .get_pendown_state = palmtt_get_pendown_state,
239 };
240
241 static struct spi_board_info __initdata palmtt_boardinfo[] = {
242 {
243 /* MicroWire (bus 2) CS0 has an ads7846e */
244 .modalias = "ads7846",
245 .platform_data = &palmtt_ts_info,
246 .irq = OMAP_GPIO_IRQ(6),
247 .max_speed_hz = 120000 /* max sample rate at 3V */
248 * 26 /* command + data + overhead */,
249 .bus_num = 2,
250 .chip_select = 0,
251 }
252 };
253
omap_palmtt_init_irq(void)254 static void __init omap_palmtt_init_irq(void)
255 {
256 omap1_init_common_hw();
257 omap_init_irq();
258 }
259
260 static struct omap_usb_config palmtt_usb_config __initdata = {
261 .register_dev = 1,
262 .hmc_mode = 0,
263 .pins[0] = 2,
264 };
265
266 static struct omap_lcd_config palmtt_lcd_config __initdata = {
267 .ctrl_name = "internal",
268 };
269
270 static struct omap_uart_config palmtt_uart_config __initdata = {
271 .enabled_uarts = (1 << 0) | (1 << 1) | (0 << 2),
272 };
273
274 static struct omap_board_config_kernel palmtt_config[] __initdata = {
275 { OMAP_TAG_USB, &palmtt_usb_config },
276 { OMAP_TAG_LCD, &palmtt_lcd_config },
277 { OMAP_TAG_UART, &palmtt_uart_config },
278 };
279
omap_mpu_wdt_mode(int mode)280 static void __init omap_mpu_wdt_mode(int mode) {
281 if (mode)
282 omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
283 else {
284 omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
285 omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
286 }
287 }
288
omap_palmtt_init(void)289 static void __init omap_palmtt_init(void)
290 {
291 omap_mpu_wdt_mode(0);
292
293 omap_board_config = palmtt_config;
294 omap_board_config_size = ARRAY_SIZE(palmtt_config);
295
296 platform_add_devices(palmtt_devices, ARRAY_SIZE(palmtt_devices));
297
298 spi_register_board_info(palmtt_boardinfo,ARRAY_SIZE(palmtt_boardinfo));
299 omap_serial_init();
300 omap_register_i2c_bus(1, 100, NULL, 0);
301 }
302
omap_palmtt_map_io(void)303 static void __init omap_palmtt_map_io(void)
304 {
305 omap1_map_common_io();
306 }
307
308 MACHINE_START(OMAP_PALMTT, "OMAP1510 based Palm Tungsten|T")
309 .phys_io = 0xfff00000,
310 .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
311 .boot_params = 0x10000100,
312 .map_io = omap_palmtt_map_io,
313 .init_irq = omap_palmtt_init_irq,
314 .init_machine = omap_palmtt_init,
315 .timer = &omap_timer,
316 MACHINE_END
317