1 /*
2 * linux/arch/arm/mach-at91/board-neocore926.c
3 *
4 * Copyright (C) 2005 SAN People
5 * Copyright (C) 2007 Atmel Corporation
6 * Copyright (C) 2008 ADENEO.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
23 #include <linux/types.h>
24 #include <linux/gpio.h>
25 #include <linux/init.h>
26 #include <linux/mm.h>
27 #include <linux/module.h>
28 #include <linux/platform_device.h>
29 #include <linux/spi/spi.h>
30 #include <linux/spi/ads7846.h>
31 #include <linux/fb.h>
32 #include <linux/gpio_keys.h>
33 #include <linux/input.h>
34
35 #include <video/atmel_lcdc.h>
36
37 #include <asm/setup.h>
38 #include <asm/mach-types.h>
39 #include <asm/irq.h>
40 #include <asm/sizes.h>
41
42 #include <asm/mach/arch.h>
43 #include <asm/mach/map.h>
44 #include <asm/mach/irq.h>
45
46 #include <mach/hardware.h>
47 #include <mach/board.h>
48 #include <mach/at91sam9_smc.h>
49
50 #include "sam9_smc.h"
51 #include "generic.h"
52
53
neocore926_init_early(void)54 static void __init neocore926_init_early(void)
55 {
56 /* Initialize processor: 20 MHz crystal */
57 at91_initialize(20000000);
58
59 /* DBGU on ttyS0. (Rx & Tx only) */
60 at91_register_uart(0, 0, 0);
61
62 /* USART0 on ttyS1. (Rx, Tx, RTS, CTS) */
63 at91_register_uart(AT91SAM9263_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
64
65 /* set serial console to ttyS0 (ie, DBGU) */
66 at91_set_serial_console(0);
67 }
68
69 /*
70 * USB Host port
71 */
72 static struct at91_usbh_data __initdata neocore926_usbh_data = {
73 .ports = 2,
74 .vbus_pin = { AT91_PIN_PA24, AT91_PIN_PA21 },
75 .overcurrent_pin= {-EINVAL, -EINVAL},
76 };
77
78 /*
79 * USB Device port
80 */
81 static struct at91_udc_data __initdata neocore926_udc_data = {
82 .vbus_pin = AT91_PIN_PA25,
83 .pullup_pin = -EINVAL, /* pull-up driven by UDC */
84 };
85
86
87 /*
88 * ADS7846 Touchscreen
89 */
90 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
ads7843_pendown_state(void)91 static int ads7843_pendown_state(void)
92 {
93 return !at91_get_gpio_value(AT91_PIN_PA15); /* Touchscreen PENIRQ */
94 }
95
96 static struct ads7846_platform_data ads_info = {
97 .model = 7843,
98 .x_min = 150,
99 .x_max = 3830,
100 .y_min = 190,
101 .y_max = 3830,
102 .vref_delay_usecs = 100,
103 .x_plate_ohms = 450,
104 .y_plate_ohms = 250,
105 .pressure_max = 15000,
106 .debounce_max = 1,
107 .debounce_rep = 0,
108 .debounce_tol = (~0),
109 .get_pendown_state = ads7843_pendown_state,
110 };
111
neocore926_add_device_ts(void)112 static void __init neocore926_add_device_ts(void)
113 {
114 at91_set_B_periph(AT91_PIN_PA15, 1); /* External IRQ1, with pullup */
115 at91_set_gpio_input(AT91_PIN_PC13, 1); /* Touchscreen BUSY signal */
116 }
117 #else
neocore926_add_device_ts(void)118 static void __init neocore926_add_device_ts(void) {}
119 #endif
120
121 /*
122 * SPI devices.
123 */
124 static struct spi_board_info neocore926_spi_devices[] = {
125 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
126 { /* DataFlash card */
127 .modalias = "mtd_dataflash",
128 .chip_select = 0,
129 .max_speed_hz = 15 * 1000 * 1000,
130 .bus_num = 0,
131 },
132 #endif
133 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
134 {
135 .modalias = "ads7846",
136 .chip_select = 1,
137 .max_speed_hz = 125000 * 16,
138 .bus_num = 0,
139 .platform_data = &ads_info,
140 .irq = AT91SAM9263_ID_IRQ1,
141 },
142 #endif
143 };
144
145
146 /*
147 * MCI (SD/MMC)
148 */
149 static struct at91_mmc_data __initdata neocore926_mmc_data = {
150 .wire4 = 1,
151 .det_pin = AT91_PIN_PE18,
152 .wp_pin = AT91_PIN_PE19,
153 .vcc_pin = -EINVAL,
154 };
155
156
157 /*
158 * MACB Ethernet device
159 */
160 static struct macb_platform_data __initdata neocore926_macb_data = {
161 .phy_irq_pin = AT91_PIN_PE31,
162 .is_rmii = 1,
163 };
164
165
166 /*
167 * NAND flash
168 */
169 static struct mtd_partition __initdata neocore926_nand_partition[] = {
170 {
171 .name = "Linux Kernel", /* "Partition 1", */
172 .offset = 0,
173 .size = SZ_8M,
174 },
175 {
176 .name = "Filesystem", /* "Partition 2", */
177 .offset = MTDPART_OFS_NXTBLK,
178 .size = SZ_32M,
179 },
180 {
181 .name = "Free", /* "Partition 3", */
182 .offset = MTDPART_OFS_NXTBLK,
183 .size = MTDPART_SIZ_FULL,
184 },
185 };
186
187 static struct atmel_nand_data __initdata neocore926_nand_data = {
188 .ale = 21,
189 .cle = 22,
190 .rdy_pin = AT91_PIN_PB19,
191 .rdy_pin_active_low = 1,
192 .enable_pin = AT91_PIN_PD15,
193 .parts = neocore926_nand_partition,
194 .num_parts = ARRAY_SIZE(neocore926_nand_partition),
195 .det_pin = -EINVAL,
196 };
197
198 static struct sam9_smc_config __initdata neocore926_nand_smc_config = {
199 .ncs_read_setup = 0,
200 .nrd_setup = 1,
201 .ncs_write_setup = 0,
202 .nwe_setup = 1,
203
204 .ncs_read_pulse = 4,
205 .nrd_pulse = 4,
206 .ncs_write_pulse = 4,
207 .nwe_pulse = 4,
208
209 .read_cycle = 6,
210 .write_cycle = 6,
211
212 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
213 .tdf_cycles = 2,
214 };
215
neocore926_add_device_nand(void)216 static void __init neocore926_add_device_nand(void)
217 {
218 /* configure chip-select 3 (NAND) */
219 sam9_smc_configure(0, 3, &neocore926_nand_smc_config);
220
221 at91_add_device_nand(&neocore926_nand_data);
222 }
223
224
225 /*
226 * LCD Controller
227 */
228 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
229 static struct fb_videomode at91_tft_vga_modes[] = {
230 {
231 .name = "TX09D50VM1CCA @ 60",
232 .refresh = 60,
233 .xres = 240, .yres = 320,
234 .pixclock = KHZ2PICOS(5000),
235
236 .left_margin = 1, .right_margin = 33,
237 .upper_margin = 1, .lower_margin = 0,
238 .hsync_len = 5, .vsync_len = 1,
239
240 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
241 .vmode = FB_VMODE_NONINTERLACED,
242 },
243 };
244
245 static struct fb_monspecs at91fb_default_monspecs = {
246 .manufacturer = "HIT",
247 .monitor = "TX09D70VM1CCA",
248
249 .modedb = at91_tft_vga_modes,
250 .modedb_len = ARRAY_SIZE(at91_tft_vga_modes),
251 .hfmin = 15000,
252 .hfmax = 64000,
253 .vfmin = 50,
254 .vfmax = 150,
255 };
256
257 #define AT91SAM9263_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
258 | ATMEL_LCDC_DISTYPE_TFT \
259 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
260
at91_lcdc_power_control(int on)261 static void at91_lcdc_power_control(int on)
262 {
263 at91_set_gpio_value(AT91_PIN_PA30, on);
264 }
265
266 /* Driver datas */
267 static struct atmel_lcdfb_info __initdata neocore926_lcdc_data = {
268 .lcdcon_is_backlight = true,
269 .default_bpp = 16,
270 .default_dmacon = ATMEL_LCDC_DMAEN,
271 .default_lcdcon2 = AT91SAM9263_DEFAULT_LCDCON2,
272 .default_monspecs = &at91fb_default_monspecs,
273 .atmel_lcdfb_power_control = at91_lcdc_power_control,
274 .guard_time = 1,
275 .lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB555,
276 };
277
278 #else
279 static struct atmel_lcdfb_info __initdata neocore926_lcdc_data;
280 #endif
281
282
283 /*
284 * GPIO Buttons
285 */
286 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
287 static struct gpio_keys_button neocore926_buttons[] = {
288 { /* BP1, "leftclic" */
289 .code = BTN_LEFT,
290 .gpio = AT91_PIN_PC5,
291 .active_low = 1,
292 .desc = "left_click",
293 .wakeup = 1,
294 },
295 { /* BP2, "rightclic" */
296 .code = BTN_RIGHT,
297 .gpio = AT91_PIN_PC4,
298 .active_low = 1,
299 .desc = "right_click",
300 .wakeup = 1,
301 },
302 };
303
304 static struct gpio_keys_platform_data neocore926_button_data = {
305 .buttons = neocore926_buttons,
306 .nbuttons = ARRAY_SIZE(neocore926_buttons),
307 };
308
309 static struct platform_device neocore926_button_device = {
310 .name = "gpio-keys",
311 .id = -1,
312 .num_resources = 0,
313 .dev = {
314 .platform_data = &neocore926_button_data,
315 }
316 };
317
neocore926_add_device_buttons(void)318 static void __init neocore926_add_device_buttons(void)
319 {
320 at91_set_GPIO_periph(AT91_PIN_PC5, 0); /* left button */
321 at91_set_deglitch(AT91_PIN_PC5, 1);
322 at91_set_GPIO_periph(AT91_PIN_PC4, 0); /* right button */
323 at91_set_deglitch(AT91_PIN_PC4, 1);
324
325 platform_device_register(&neocore926_button_device);
326 }
327 #else
neocore926_add_device_buttons(void)328 static void __init neocore926_add_device_buttons(void) {}
329 #endif
330
331
332 /*
333 * AC97
334 */
335 static struct ac97c_platform_data neocore926_ac97_data = {
336 .reset_pin = AT91_PIN_PA13,
337 };
338
339
neocore926_board_init(void)340 static void __init neocore926_board_init(void)
341 {
342 /* Serial */
343 at91_add_device_serial();
344
345 /* USB Host */
346 at91_add_device_usbh(&neocore926_usbh_data);
347
348 /* USB Device */
349 at91_add_device_udc(&neocore926_udc_data);
350
351 /* SPI */
352 at91_set_gpio_output(AT91_PIN_PE20, 1); /* select spi0 clock */
353 at91_add_device_spi(neocore926_spi_devices, ARRAY_SIZE(neocore926_spi_devices));
354
355 /* Touchscreen */
356 neocore926_add_device_ts();
357
358 /* MMC */
359 at91_add_device_mmc(1, &neocore926_mmc_data);
360
361 /* Ethernet */
362 at91_add_device_eth(&neocore926_macb_data);
363
364 /* NAND */
365 neocore926_add_device_nand();
366
367 /* I2C */
368 at91_add_device_i2c(NULL, 0);
369
370 /* LCD Controller */
371 at91_add_device_lcdc(&neocore926_lcdc_data);
372
373 /* Push Buttons */
374 neocore926_add_device_buttons();
375
376 /* AC97 */
377 at91_add_device_ac97(&neocore926_ac97_data);
378 }
379
380 MACHINE_START(NEOCORE926, "ADENEO NEOCORE 926")
381 /* Maintainer: ADENEO */
382 .timer = &at91sam926x_timer,
383 .map_io = at91_map_io,
384 .init_early = neocore926_init_early,
385 .init_irq = at91_init_irq_default,
386 .init_machine = neocore926_board_init,
387 MACHINE_END
388