Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
[linux-2.6.git] / arch / arm / mach-at91 / board-cap9adk.c
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