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1 | /* |
2 | * linux/arch/arm/mach-at91/board-cap9adk.c |
3 | * |
4 | * Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com> |
5 | * Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com> |
6 | * Copyright (C) 2005 SAN People |
7 | * Copyright (C) 2007 Atmel Corporation. |
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 as published by |
11 | * the Free Software Foundation; either version 2 of the License, or |
12 | * (at your option) any later version. |
13 | * |
14 | * This program is distributed in the hope that it will be useful, |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 | * GNU General Public License for more details. |
18 | * |
19 | * You should have received a copy of the GNU General Public License |
20 | * along with this program; if not, write to the Free Software |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
22 | */ |
23 | |
24 | #include <linux/types.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/mtd/physmap.h> |
33 | |
34 | #include <video/atmel_lcdc.h> |
35 | |
36 | #include <mach/hardware.h> |
37 | #include <asm/setup.h> |
38 | #include <asm/mach-types.h> |
39 | |
40 | #include <asm/mach/arch.h> |
41 | #include <asm/mach/map.h> |
42 | |
43 | #include <mach/board.h> |
44 | #include <mach/gpio.h> |
45 | #include <mach/at91cap9_matrix.h> |
46 | #include <mach/at91sam9_smc.h> |
47 | |
48 | #include "sam9_smc.h" |
49 | #include "generic.h" |
50 | |
51 | |
52 | static void __init cap9adk_map_io(void) |
53 | { |
54 | /* Initialize processor: 12 MHz crystal */ |
55 | at91cap9_initialize(12000000); |
56 | |
57 | /* Setup the LEDs: USER1 and USER2 LED for cpu/timer... */ |
58 | at91_init_leds(AT91_PIN_PA10, AT91_PIN_PA11); |
59 | /* ... POWER LED always on */ |
60 | at91_set_gpio_output(AT91_PIN_PC29, 1); |
61 | |
62 | /* Setup the serial ports and console */ |
63 | at91_register_uart(0, 0, 0); /* DBGU = ttyS0 */ |
64 | at91_set_serial_console(0); |
65 | } |
66 | |
67 | static void __init cap9adk_init_irq(void) |
68 | { |
69 | at91cap9_init_interrupts(NULL); |
70 | } |
71 | |
72 | |
73 | /* |
74 | * USB Host port |
75 | */ |
76 | static struct at91_usbh_data __initdata cap9adk_usbh_data = { |
77 | .ports = 2, |
78 | }; |
79 | |
80 | /* |
81 | * USB HS Device port |
82 | */ |
83 | static struct usba_platform_data __initdata cap9adk_usba_udc_data = { |
84 | .vbus_pin = AT91_PIN_PB31, |
85 | }; |
86 | |
87 | /* |
88 | * ADS7846 Touchscreen |
89 | */ |
90 | #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) |
91 | static int ads7843_pendown_state(void) |
92 | { |
93 | return !at91_get_gpio_value(AT91_PIN_PC4); /* 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 | |
112 | static void __init cap9adk_add_device_ts(void) |
113 | { |
114 | at91_set_gpio_input(AT91_PIN_PC4, 1); /* Touchscreen PENIRQ */ |
115 | at91_set_gpio_input(AT91_PIN_PC5, 1); /* Touchscreen BUSY */ |
116 | } |
117 | #else |
118 | static void __init cap9adk_add_device_ts(void) {} |
119 | #endif |
120 | |
121 | |
122 | /* |
123 | * SPI devices. |
124 | */ |
125 | static struct spi_board_info cap9adk_spi_devices[] = { |
126 | #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD) |
127 | { /* DataFlash card */ |
128 | .modalias = "mtd_dataflash", |
129 | .chip_select = 0, |
130 | .max_speed_hz = 15 * 1000 * 1000, |
131 | .bus_num = 0, |
132 | }, |
133 | #endif |
134 | #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) |
135 | { |
136 | .modalias = "ads7846", |
137 | .chip_select = 3, /* can be 2 or 3, depending on J2 jumper */ |
138 | .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */ |
139 | .bus_num = 0, |
140 | .platform_data = &ads_info, |
141 | .irq = AT91_PIN_PC4, |
142 | }, |
143 | #endif |
144 | }; |
145 | |
146 | |
147 | /* |
148 | * MCI (SD/MMC) |
149 | */ |
150 | static struct at91_mmc_data __initdata cap9adk_mmc_data = { |
151 | .wire4 = 1, |
152 | // .det_pin = ... not connected |
153 | // .wp_pin = ... not connected |
154 | // .vcc_pin = ... not connected |
155 | }; |
156 | |
157 | |
158 | /* |
159 | * MACB Ethernet device |
160 | */ |
161 | static struct at91_eth_data __initdata cap9adk_macb_data = { |
162 | .is_rmii = 1, |
163 | }; |
164 | |
165 | |
166 | /* |
167 | * NAND flash |
168 | */ |
169 | static struct mtd_partition __initdata cap9adk_nand_partitions[] = { |
170 | { |
171 | .name = "NAND partition", |
172 | .offset = 0, |
173 | .size = MTDPART_SIZ_FULL, |
174 | }, |
175 | }; |
176 | |
177 | static struct mtd_partition * __init nand_partitions(int size, int *num_partitions) |
178 | { |
179 | *num_partitions = ARRAY_SIZE(cap9adk_nand_partitions); |
180 | return cap9adk_nand_partitions; |
181 | } |
182 | |
183 | static struct atmel_nand_data __initdata cap9adk_nand_data = { |
184 | .ale = 21, |
185 | .cle = 22, |
186 | // .det_pin = ... not connected |
187 | // .rdy_pin = ... not connected |
188 | .enable_pin = AT91_PIN_PD15, |
189 | .partition_info = nand_partitions, |
190 | #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16) |
191 | .bus_width_16 = 1, |
192 | #else |
193 | .bus_width_16 = 0, |
194 | #endif |
195 | }; |
196 | |
197 | static struct sam9_smc_config __initdata cap9adk_nand_smc_config = { |
198 | .ncs_read_setup = 1, |
199 | .nrd_setup = 2, |
200 | .ncs_write_setup = 1, |
201 | .nwe_setup = 2, |
202 | |
203 | .ncs_read_pulse = 6, |
204 | .nrd_pulse = 4, |
205 | .ncs_write_pulse = 6, |
206 | .nwe_pulse = 4, |
207 | |
208 | .read_cycle = 8, |
209 | .write_cycle = 8, |
210 | |
211 | .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE, |
212 | .tdf_cycles = 1, |
213 | }; |
214 | |
215 | static void __init cap9adk_add_device_nand(void) |
216 | { |
217 | unsigned long csa; |
218 | |
219 | csa = at91_sys_read(AT91_MATRIX_EBICSA); |
220 | at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V); |
221 | |
222 | /* setup bus-width (8 or 16) */ |
223 | if (cap9adk_nand_data.bus_width_16) |
224 | cap9adk_nand_smc_config.mode |= AT91_SMC_DBW_16; |
225 | else |
226 | cap9adk_nand_smc_config.mode |= AT91_SMC_DBW_8; |
227 | |
228 | /* configure chip-select 3 (NAND) */ |
229 | sam9_smc_configure(3, &cap9adk_nand_smc_config); |
230 | |
231 | at91_add_device_nand(&cap9adk_nand_data); |
232 | } |
233 | |
234 | |
235 | /* |
236 | * NOR flash |
237 | */ |
238 | static struct mtd_partition cap9adk_nor_partitions[] = { |
239 | { |
240 | .name = "NOR partition", |
241 | .offset = 0, |
242 | .size = MTDPART_SIZ_FULL, |
243 | }, |
244 | }; |
245 | |
246 | static struct physmap_flash_data cap9adk_nor_data = { |
247 | .width = 2, |
248 | .parts = cap9adk_nor_partitions, |
249 | .nr_parts = ARRAY_SIZE(cap9adk_nor_partitions), |
250 | }; |
251 | |
252 | #define NOR_BASE AT91_CHIPSELECT_0 |
253 | #define NOR_SIZE SZ_8M |
254 | |
255 | static struct resource nor_flash_resources[] = { |
256 | { |
257 | .start = NOR_BASE, |
258 | .end = NOR_BASE + NOR_SIZE - 1, |
259 | .flags = IORESOURCE_MEM, |
260 | } |
261 | }; |
262 | |
263 | static struct platform_device cap9adk_nor_flash = { |
264 | .name = "physmap-flash", |
265 | .id = 0, |
266 | .dev = { |
267 | .platform_data = &cap9adk_nor_data, |
268 | }, |
269 | .resource = nor_flash_resources, |
270 | .num_resources = ARRAY_SIZE(nor_flash_resources), |
271 | }; |
272 | |
273 | static struct sam9_smc_config __initdata cap9adk_nor_smc_config = { |
274 | .ncs_read_setup = 2, |
275 | .nrd_setup = 4, |
276 | .ncs_write_setup = 2, |
277 | .nwe_setup = 4, |
278 | |
279 | .ncs_read_pulse = 10, |
280 | .nrd_pulse = 8, |
281 | .ncs_write_pulse = 10, |
282 | .nwe_pulse = 8, |
283 | |
284 | .read_cycle = 16, |
285 | .write_cycle = 16, |
286 | |
287 | .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16, |
288 | .tdf_cycles = 1, |
289 | }; |
290 | |
291 | static __init void cap9adk_add_device_nor(void) |
292 | { |
293 | unsigned long csa; |
294 | |
295 | csa = at91_sys_read(AT91_MATRIX_EBICSA); |
296 | at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V); |
297 | |
298 | /* configure chip-select 0 (NOR) */ |
299 | sam9_smc_configure(0, &cap9adk_nor_smc_config); |
300 | |
301 | platform_device_register(&cap9adk_nor_flash); |
302 | } |
303 | |
304 | |
305 | /* |
306 | * LCD Controller |
307 | */ |
308 | #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE) |
309 | static struct fb_videomode at91_tft_vga_modes[] = { |
310 | { |
311 | .name = "TX09D50VM1CCA @ 60", |
312 | .refresh = 60, |
313 | .xres = 240, .yres = 320, |
314 | .pixclock = KHZ2PICOS(4965), |
315 | |
316 | .left_margin = 1, .right_margin = 33, |
317 | .upper_margin = 1, .lower_margin = 0, |
318 | .hsync_len = 5, .vsync_len = 1, |
319 | |
320 | .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
321 | .vmode = FB_VMODE_NONINTERLACED, |
322 | }, |
323 | }; |
324 | |
325 | static struct fb_monspecs at91fb_default_monspecs = { |
326 | .manufacturer = "HIT", |
327 | .monitor = "TX09D70VM1CCA", |
328 | |
329 | .modedb = at91_tft_vga_modes, |
330 | .modedb_len = ARRAY_SIZE(at91_tft_vga_modes), |
331 | .hfmin = 15000, |
332 | .hfmax = 64000, |
333 | .vfmin = 50, |
334 | .vfmax = 150, |
335 | }; |
336 | |
337 | #define AT91CAP9_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \ |
338 | | ATMEL_LCDC_DISTYPE_TFT \ |
339 | | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE) |
340 | |
341 | static void at91_lcdc_power_control(int on) |
342 | { |
343 | if (on) |
344 | at91_set_gpio_value(AT91_PIN_PC0, 0); /* power up */ |
345 | else |
346 | at91_set_gpio_value(AT91_PIN_PC0, 1); /* power down */ |
347 | } |
348 | |
349 | /* Driver datas */ |
350 | static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data = { |
351 | .default_bpp = 16, |
352 | .default_dmacon = ATMEL_LCDC_DMAEN, |
353 | .default_lcdcon2 = AT91CAP9_DEFAULT_LCDCON2, |
354 | .default_monspecs = &at91fb_default_monspecs, |
355 | .atmel_lcdfb_power_control = at91_lcdc_power_control, |
356 | .guard_time = 1, |
357 | }; |
358 | |
359 | #else |
360 | static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data; |
361 | #endif |
362 | |
363 | |
364 | /* |
365 | * AC97 |
366 | */ |
367 | static struct ac97c_platform_data cap9adk_ac97_data = { |
368 | // .reset_pin = ... not connected |
369 | }; |
370 | |
371 | |
372 | static void __init cap9adk_board_init(void) |
373 | { |
374 | /* Serial */ |
375 | at91_add_device_serial(); |
376 | /* USB Host */ |
377 | at91_add_device_usbh(&cap9adk_usbh_data); |
378 | /* USB HS */ |
379 | at91_add_device_usba(&cap9adk_usba_udc_data); |
380 | /* SPI */ |
381 | at91_add_device_spi(cap9adk_spi_devices, ARRAY_SIZE(cap9adk_spi_devices)); |
382 | /* Touchscreen */ |
383 | cap9adk_add_device_ts(); |
384 | /* MMC */ |
385 | at91_add_device_mmc(1, &cap9adk_mmc_data); |
386 | /* Ethernet */ |
387 | at91_add_device_eth(&cap9adk_macb_data); |
388 | /* NAND */ |
389 | cap9adk_add_device_nand(); |
390 | /* NOR Flash */ |
391 | cap9adk_add_device_nor(); |
392 | /* I2C */ |
393 | at91_add_device_i2c(NULL, 0); |
394 | /* LCD Controller */ |
395 | at91_add_device_lcdc(&cap9adk_lcdc_data); |
396 | /* AC97 */ |
397 | at91_add_device_ac97(&cap9adk_ac97_data); |
398 | } |
399 | |
400 | MACHINE_START(AT91CAP9ADK, "Atmel AT91CAP9A-DK") |
401 | /* Maintainer: Stelian Pop <stelian.pop@leadtechdesign.com> */ |
402 | .boot_params = AT91_SDRAM_BASE + 0x100, |
403 | .timer = &at91sam926x_timer, |
404 | .map_io = cap9adk_map_io, |
405 | .init_irq = cap9adk_init_irq, |
406 | .init_machine = cap9adk_board_init, |
407 | MACHINE_END |
408 |
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