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/gpio.h>
16 #include <linux/kernel.h>
17 #include <linux/init.h>
18 #include <linux/platform_device.h>
19 #include <linux/notifier.h>
20 #include <linux/clk.h>
21 #include <linux/input.h>
22 #include <linux/interrupt.h>
23 #include <linux/mtd/mtd.h>
24 #include <linux/mtd/partitions.h>
25 #include <linux/mtd/physmap.h>
26 #include <linux/leds.h>
27
28 #include <mach/hardware.h>
29 #include <asm/mach-types.h>
30 #include <asm/mach/arch.h>
31 #include <asm/mach/map.h>
32
33 #include <plat/led.h>
34 #include <plat/flash.h>
35 #include <plat/mux.h>
36 #include <plat/usb.h>
37 #include <plat/dma.h>
38 #include <plat/tc.h>
39 #include <plat/board.h>
40 #include <plat/irda.h>
41 #include <plat/keypad.h>
42 #include "common.h"
43
44 #include <linux/spi/spi.h>
45 #include <linux/spi/ads7846.h>
46
47 #define PALMTT_USBDETECT_GPIO 0
48 #define PALMTT_CABLE_GPIO 1
49 #define PALMTT_LED_GPIO 3
50 #define PALMTT_PENIRQ_GPIO 6
51 #define PALMTT_MMC_WP_GPIO 8
52 #define PALMTT_HDQ_GPIO 11
53
54 static const unsigned int palmtt_keymap[] = {
55 KEY(0, 0, KEY_ESC),
56 KEY(1, 0, KEY_SPACE),
57 KEY(2, 0, KEY_LEFTCTRL),
58 KEY(3, 0, KEY_TAB),
59 KEY(4, 0, KEY_ENTER),
60 KEY(0, 1, KEY_LEFT),
61 KEY(1, 1, KEY_DOWN),
62 KEY(2, 1, KEY_UP),
63 KEY(3, 1, KEY_RIGHT),
64 KEY(0, 2, KEY_SLEEP),
65 KEY(4, 2, KEY_Y),
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 physmap_flash_data palmtt_flash_data = {
108 .width = 2,
109 .set_vpp = omap1_set_vpp,
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 = "physmap-flash",
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 const struct matrix_keymap_data palmtt_keymap_data = {
139 .keymap = palmtt_keymap,
140 .keymap_size = ARRAY_SIZE(palmtt_keymap),
141 };
142
143 static struct omap_kp_platform_data palmtt_kp_data = {
144 .rows = 6,
145 .cols = 3,
146 .keymap_data = &palmtt_keymap_data,
147 };
148
149 static struct platform_device palmtt_kp_device = {
150 .name = "omap-keypad",
151 .id = -1,
152 .dev = {
153 .platform_data = &palmtt_kp_data,
154 },
155 .num_resources = ARRAY_SIZE(palmtt_kp_resources),
156 .resource = palmtt_kp_resources,
157 };
158
159 static struct platform_device palmtt_lcd_device = {
160 .name = "lcd_palmtt",
161 .id = -1,
162 };
163 static struct omap_irda_config palmtt_irda_config = {
164 .transceiver_cap = IR_SIRMODE,
165 .rx_channel = OMAP_DMA_UART3_RX,
166 .tx_channel = OMAP_DMA_UART3_TX,
167 .dest_start = UART3_THR,
168 .src_start = UART3_RHR,
169 .tx_trigger = 0,
170 .rx_trigger = 0,
171 };
172
173 static struct resource palmtt_irda_resources[] = {
174 [0] = {
175 .start = INT_UART3,
176 .end = INT_UART3,
177 .flags = IORESOURCE_IRQ,
178 },
179 };
180
181 static struct platform_device palmtt_irda_device = {
182 .name = "omapirda",
183 .id = -1,
184 .dev = {
185 .platform_data = &palmtt_irda_config,
186 },
187 .num_resources = ARRAY_SIZE(palmtt_irda_resources),
188 .resource = palmtt_irda_resources,
189 };
190
191 static struct platform_device palmtt_spi_device = {
192 .name = "spi_palmtt",
193 .id = -1,
194 };
195
196 static struct omap_backlight_config palmtt_backlight_config = {
197 .default_intensity = 0xa0,
198 };
199
200 static struct platform_device palmtt_backlight_device = {
201 .name = "omap-bl",
202 .id = -1,
203 .dev = {
204 .platform_data= &palmtt_backlight_config,
205 },
206 };
207
208 static struct omap_led_config palmtt_led_config[] = {
209 {
210 .cdev = {
211 .name = "palmtt:led0",
212 },
213 .gpio = PALMTT_LED_GPIO,
214 },
215 };
216
217 static struct omap_led_platform_data palmtt_led_data = {
218 .nr_leds = ARRAY_SIZE(palmtt_led_config),
219 .leds = palmtt_led_config,
220 };
221
222 static struct platform_device palmtt_led_device = {
223 .name = "omap-led",
224 .id = -1,
225 .dev = {
226 .platform_data = &palmtt_led_data,
227 },
228 };
229
230 static struct platform_device *palmtt_devices[] __initdata = {
231 &palmtt_flash_device,
232 &palmtt_kp_device,
233 &palmtt_lcd_device,
234 &palmtt_irda_device,
235 &palmtt_spi_device,
236 &palmtt_backlight_device,
237 &palmtt_led_device,
238 };
239
palmtt_get_pendown_state(void)240 static int palmtt_get_pendown_state(void)
241 {
242 return !gpio_get_value(6);
243 }
244
245 static const struct ads7846_platform_data palmtt_ts_info = {
246 .model = 7846,
247 .vref_delay_usecs = 100, /* internal, no capacitor */
248 .x_plate_ohms = 419,
249 .y_plate_ohms = 486,
250 .get_pendown_state = palmtt_get_pendown_state,
251 };
252
253 static struct spi_board_info __initdata palmtt_boardinfo[] = {
254 {
255 /* MicroWire (bus 2) CS0 has an ads7846e */
256 .modalias = "ads7846",
257 .platform_data = &palmtt_ts_info,
258 .irq = OMAP_GPIO_IRQ(6),
259 .max_speed_hz = 120000 /* max sample rate at 3V */
260 * 26 /* command + data + overhead */,
261 .bus_num = 2,
262 .chip_select = 0,
263 }
264 };
265
266 static struct omap_usb_config palmtt_usb_config __initdata = {
267 .register_dev = 1,
268 .hmc_mode = 0,
269 .pins[0] = 2,
270 };
271
272 static struct omap_lcd_config palmtt_lcd_config __initdata = {
273 .ctrl_name = "internal",
274 };
275
276 static struct omap_board_config_kernel palmtt_config[] __initdata = {
277 { OMAP_TAG_LCD, &palmtt_lcd_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 /* mux pins for uarts */
292 omap_cfg_reg(UART1_TX);
293 omap_cfg_reg(UART1_RTS);
294 omap_cfg_reg(UART2_TX);
295 omap_cfg_reg(UART2_RTS);
296 omap_cfg_reg(UART3_TX);
297 omap_cfg_reg(UART3_RX);
298
299 omap_mpu_wdt_mode(0);
300
301 omap_board_config = palmtt_config;
302 omap_board_config_size = ARRAY_SIZE(palmtt_config);
303
304 platform_add_devices(palmtt_devices, ARRAY_SIZE(palmtt_devices));
305
306 spi_register_board_info(palmtt_boardinfo,ARRAY_SIZE(palmtt_boardinfo));
307 omap_serial_init();
308 omap1_usb_init(&palmtt_usb_config);
309 omap_register_i2c_bus(1, 100, NULL, 0);
310 }
311
312 MACHINE_START(OMAP_PALMTT, "OMAP1510 based Palm Tungsten|T")
313 .atag_offset = 0x100,
314 .map_io = omap15xx_map_io,
315 .init_early = omap1_init_early,
316 .reserve = omap_reserve,
317 .init_irq = omap1_init_irq,
318 .init_machine = omap_palmtt_init,
319 .timer = &omap1_timer,
320 .restart = omap1_restart,
321 MACHINE_END
322