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Linux/arch/arm/mach-omap1/board-palmtt.c

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  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 #include <linux/omapfb.h>
 28 #include <linux/spi/spi.h>
 29 #include <linux/spi/ads7846.h>
 30 #include <linux/platform_data/omap1_bl.h>
 31 #include <linux/platform_data/leds-omap.h>
 32 
 33 #include <asm/mach-types.h>
 34 #include <asm/mach/arch.h>
 35 #include <asm/mach/map.h>
 36 
 37 #include <mach/flash.h>
 38 #include <mach/mux.h>
 39 #include <linux/omap-dma.h>
 40 #include <mach/tc.h>
 41 #include <linux/platform_data/keypad-omap.h>
 42 
 43 #include <mach/hardware.h>
 44 #include <mach/usb.h>
 45 
 46 #include "common.h"
 47 
 48 #define PALMTT_USBDETECT_GPIO   0
 49 #define PALMTT_CABLE_GPIO       1
 50 #define PALMTT_LED_GPIO         3
 51 #define PALMTT_PENIRQ_GPIO      6
 52 #define PALMTT_MMC_WP_GPIO      8
 53 #define PALMTT_HDQ_GPIO         11
 54 
 55 static const unsigned int palmtt_keymap[] = {
 56         KEY(0, 0, KEY_ESC),
 57         KEY(1, 0, KEY_SPACE),
 58         KEY(2, 0, KEY_LEFTCTRL),
 59         KEY(3, 0, KEY_TAB),
 60         KEY(4, 0, KEY_ENTER),
 61         KEY(0, 1, KEY_LEFT),
 62         KEY(1, 1, KEY_DOWN),
 63         KEY(2, 1, KEY_UP),
 64         KEY(3, 1, KEY_RIGHT),
 65         KEY(0, 2, KEY_SLEEP),
 66         KEY(4, 2, KEY_Y),
 67 };
 68 
 69 static struct mtd_partition palmtt_partitions[] = {
 70         {
 71                 .name           = "write8k",
 72                 .offset         = 0,
 73                 .size           = SZ_8K,
 74                 .mask_flags     = 0,
 75         },
 76         {
 77                 .name           = "PalmOS-BootLoader(ro)",
 78                 .offset         = SZ_8K,
 79                 .size           = 7 * SZ_8K,
 80                 .mask_flags     = MTD_WRITEABLE,
 81         },
 82         {
 83                 .name           = "u-boot",
 84                 .offset         = MTDPART_OFS_APPEND,
 85                 .size           = 8 * SZ_8K,
 86                 .mask_flags     = 0,
 87         },
 88         {
 89                 .name           = "PalmOS-FS(ro)",
 90                 .offset         = MTDPART_OFS_APPEND,
 91                 .size           = 7 * SZ_1M + 4 * SZ_64K - 16 * SZ_8K,
 92                 .mask_flags     = MTD_WRITEABLE,
 93         },
 94         {
 95                 .name           = "u-boot(rez)",
 96                 .offset         = MTDPART_OFS_APPEND,
 97                 .size           = SZ_128K,
 98                 .mask_flags     = 0
 99         },
100         {
101                 .name           = "empty",
102                 .offset         = MTDPART_OFS_APPEND,
103                 .size           = MTDPART_SIZ_FULL,
104                 .mask_flags     = 0
105         }
106 };
107 
108 static struct physmap_flash_data palmtt_flash_data = {
109         .width          = 2,
110         .set_vpp        = omap1_set_vpp,
111         .parts          = palmtt_partitions,
112         .nr_parts       = ARRAY_SIZE(palmtt_partitions),
113 };
114 
115 static struct resource palmtt_flash_resource = {
116         .start          = OMAP_CS0_PHYS,
117         .end            = OMAP_CS0_PHYS + SZ_8M - 1,
118         .flags          = IORESOURCE_MEM,
119 };
120 
121 static struct platform_device palmtt_flash_device = {
122         .name           = "physmap-flash",
123         .id             = 0,
124         .dev            = {
125                 .platform_data  = &palmtt_flash_data,
126         },
127         .num_resources  = 1,
128         .resource       = &palmtt_flash_resource,
129 };
130 
131 static struct resource palmtt_kp_resources[] = {
132         [0] = {
133                 .start  = INT_KEYBOARD,
134                 .end    = INT_KEYBOARD,
135                 .flags  = IORESOURCE_IRQ,
136         },
137 };
138 
139 static const struct matrix_keymap_data palmtt_keymap_data = {
140         .keymap         = palmtt_keymap,
141         .keymap_size    = ARRAY_SIZE(palmtt_keymap),
142 };
143 
144 static struct omap_kp_platform_data palmtt_kp_data = {
145         .rows   = 6,
146         .cols   = 3,
147         .keymap_data = &palmtt_keymap_data,
148 };
149 
150 static struct platform_device palmtt_kp_device = {
151         .name           = "omap-keypad",
152         .id             = -1,
153         .dev            = {
154                 .platform_data = &palmtt_kp_data,
155         },
156         .num_resources  = ARRAY_SIZE(palmtt_kp_resources),
157         .resource       = palmtt_kp_resources,
158 };
159 
160 static struct platform_device palmtt_lcd_device = {
161         .name           = "lcd_palmtt",
162         .id             = -1,
163 };
164 
165 static struct platform_device palmtt_spi_device = {
166         .name           = "spi_palmtt",
167         .id             = -1,
168 };
169 
170 static struct omap_backlight_config palmtt_backlight_config = {
171         .default_intensity      = 0xa0,
172 };
173 
174 static struct platform_device palmtt_backlight_device = {
175         .name           = "omap-bl",
176         .id             = -1,
177         .dev            = {
178                 .platform_data= &palmtt_backlight_config,
179         },
180 };
181 
182 static struct omap_led_config palmtt_led_config[] = {
183         {
184                 .cdev   = {
185                         .name   = "palmtt:led0",
186                 },
187                 .gpio   = PALMTT_LED_GPIO,
188         },
189 };
190 
191 static struct omap_led_platform_data palmtt_led_data = {
192         .nr_leds        = ARRAY_SIZE(palmtt_led_config),
193         .leds           = palmtt_led_config,
194 };
195 
196 static struct platform_device palmtt_led_device = {
197         .name   = "omap-led",
198         .id     = -1,
199         .dev    = {
200                 .platform_data  = &palmtt_led_data,
201         },
202 };
203 
204 static struct platform_device *palmtt_devices[] __initdata = {
205         &palmtt_flash_device,
206         &palmtt_kp_device,
207         &palmtt_lcd_device,
208         &palmtt_spi_device,
209         &palmtt_backlight_device,
210         &palmtt_led_device,
211 };
212 
213 static int palmtt_get_pendown_state(void)
214 {
215         return !gpio_get_value(6);
216 }
217 
218 static const struct ads7846_platform_data palmtt_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      = palmtt_get_pendown_state,
224 };
225 
226 static struct spi_board_info __initdata palmtt_boardinfo[] = {
227         {
228                 /* MicroWire (bus 2) CS0 has an ads7846e */
229                 .modalias       = "ads7846",
230                 .platform_data  = &palmtt_ts_info,
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 
238 static struct omap_usb_config palmtt_usb_config __initdata = {
239         .register_dev   = 1,
240         .hmc_mode       = 0,
241         .pins[0]        = 2,
242 };
243 
244 static struct omap_lcd_config palmtt_lcd_config __initdata = {
245         .ctrl_name      = "internal",
246 };
247 
248 static void __init omap_mpu_wdt_mode(int mode) {
249         if (mode)
250                 omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
251         else {
252                 omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
253                 omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
254         }
255 }
256 
257 static void __init omap_palmtt_init(void)
258 {
259         /* mux pins for uarts */
260         omap_cfg_reg(UART1_TX);
261         omap_cfg_reg(UART1_RTS);
262         omap_cfg_reg(UART2_TX);
263         omap_cfg_reg(UART2_RTS);
264         omap_cfg_reg(UART3_TX);
265         omap_cfg_reg(UART3_RX);
266 
267         omap_mpu_wdt_mode(0);
268 
269         platform_add_devices(palmtt_devices, ARRAY_SIZE(palmtt_devices));
270 
271         palmtt_boardinfo[0].irq = gpio_to_irq(6);
272         spi_register_board_info(palmtt_boardinfo,ARRAY_SIZE(palmtt_boardinfo));
273         omap_serial_init();
274         omap1_usb_init(&palmtt_usb_config);
275         omap_register_i2c_bus(1, 100, NULL, 0);
276 
277         omapfb_set_lcd_config(&palmtt_lcd_config);
278 }
279 
280 MACHINE_START(OMAP_PALMTT, "OMAP1510 based Palm Tungsten|T")
281         .atag_offset    = 0x100,
282         .map_io         = omap15xx_map_io,
283         .init_early     = omap1_init_early,
284         .init_irq       = omap1_init_irq,
285         .init_machine   = omap_palmtt_init,
286         .init_late      = omap1_init_late,
287         .init_time      = omap1_timer_init,
288         .restart        = omap1_restart,
289 MACHINE_END
290 

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