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
 54static void __init neocore926_init_early(void)
 55{
 56	/* Initialize processor: 20 MHz crystal */
 57	at91_initialize(20000000);
 58}
 59
 60/*
 61 * USB Host port
 62 */
 63static struct at91_usbh_data __initdata neocore926_usbh_data = {
 64	.ports		= 2,
 65	.vbus_pin	= { AT91_PIN_PA24, AT91_PIN_PA21 },
 66	.overcurrent_pin= {-EINVAL, -EINVAL},
 67};
 68
 69/*
 70 * USB Device port
 71 */
 72static struct at91_udc_data __initdata neocore926_udc_data = {
 73	.vbus_pin	= AT91_PIN_PA25,
 74	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
 75};
 76
 77
 78/*
 79 * ADS7846 Touchscreen
 80 */
 81#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 82static int ads7843_pendown_state(void)
 83{
 84	return !at91_get_gpio_value(AT91_PIN_PA15);	/* Touchscreen PENIRQ */
 85}
 86
 87static struct ads7846_platform_data ads_info = {
 88	.model			= 7843,
 89	.x_min			= 150,
 90	.x_max			= 3830,
 91	.y_min			= 190,
 92	.y_max			= 3830,
 93	.vref_delay_usecs	= 100,
 94	.x_plate_ohms		= 450,
 95	.y_plate_ohms		= 250,
 96	.pressure_max		= 15000,
 97	.debounce_max		= 1,
 98	.debounce_rep		= 0,
 99	.debounce_tol		= (~0),
100	.get_pendown_state	= ads7843_pendown_state,
101};
102
103static void __init neocore926_add_device_ts(void)
104{
105	at91_set_B_periph(AT91_PIN_PA15, 1);	/* External IRQ1, with pullup */
106	at91_set_gpio_input(AT91_PIN_PC13, 1);	/* Touchscreen BUSY signal */
107}
108#else
109static void __init neocore926_add_device_ts(void) {}
110#endif
111
112/*
113 * SPI devices.
114 */
115static struct spi_board_info neocore926_spi_devices[] = {
116#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
117	{	/* DataFlash card */
118		.modalias	= "mtd_dataflash",
119		.chip_select	= 0,
120		.max_speed_hz	= 15 * 1000 * 1000,
121		.bus_num	= 0,
122	},
123#endif
124#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
125	{
126		.modalias	= "ads7846",
127		.chip_select	= 1,
128		.max_speed_hz	= 125000 * 16,
129		.bus_num	= 0,
130		.platform_data	= &ads_info,
131		.irq		= AT91SAM9263_ID_IRQ1,
132	},
133#endif
134};
135
136
137/*
138 * MCI (SD/MMC)
139 */
140static struct at91_mmc_data __initdata neocore926_mmc_data = {
141	.wire4		= 1,
142	.det_pin	= AT91_PIN_PE18,
143	.wp_pin		= AT91_PIN_PE19,
144	.vcc_pin	= -EINVAL,
145};
146
147
148/*
149 * MACB Ethernet device
150 */
151static struct macb_platform_data __initdata neocore926_macb_data = {
152	.phy_irq_pin	= AT91_PIN_PE31,
153	.is_rmii	= 1,
154};
155
156
157/*
158 * NAND flash
159 */
160static struct mtd_partition __initdata neocore926_nand_partition[] = {
161	{
162		.name	= "Linux Kernel",	/* "Partition 1", */
163		.offset	= 0,
164		.size	= SZ_8M,
165	},
166	{
167		.name	= "Filesystem",		/* "Partition 2", */
168		.offset	= MTDPART_OFS_NXTBLK,
169		.size	= SZ_32M,
170	},
171	{
172		.name	= "Free",		/* "Partition 3", */
173		.offset	= MTDPART_OFS_NXTBLK,
174		.size	= MTDPART_SIZ_FULL,
175	},
176};
177
178static struct atmel_nand_data __initdata neocore926_nand_data = {
179	.ale			= 21,
180	.cle			= 22,
181	.rdy_pin		= AT91_PIN_PB19,
182	.rdy_pin_active_low	= 1,
183	.enable_pin		= AT91_PIN_PD15,
184	.ecc_mode		= NAND_ECC_SOFT,
185	.parts			= neocore926_nand_partition,
186	.num_parts		= ARRAY_SIZE(neocore926_nand_partition),
187	.det_pin		= -EINVAL,
188};
189
190static struct sam9_smc_config __initdata neocore926_nand_smc_config = {
191	.ncs_read_setup		= 0,
192	.nrd_setup		= 1,
193	.ncs_write_setup	= 0,
194	.nwe_setup		= 1,
195
196	.ncs_read_pulse		= 4,
197	.nrd_pulse		= 4,
198	.ncs_write_pulse	= 4,
199	.nwe_pulse		= 4,
200
201	.read_cycle		= 6,
202	.write_cycle		= 6,
203
204	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
205	.tdf_cycles		= 2,
206};
207
208static void __init neocore926_add_device_nand(void)
209{
210	/* configure chip-select 3 (NAND) */
211	sam9_smc_configure(0, 3, &neocore926_nand_smc_config);
212
213	at91_add_device_nand(&neocore926_nand_data);
214}
215
216
217/*
218 * LCD Controller
219 */
220#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
221static struct fb_videomode at91_tft_vga_modes[] = {
222	{
223		.name		= "TX09D50VM1CCA @ 60",
224		.refresh	= 60,
225		.xres		= 240,		.yres		= 320,
226		.pixclock	= KHZ2PICOS(5000),
227
228		.left_margin	= 1,		.right_margin	= 33,
229		.upper_margin	= 1,		.lower_margin	= 0,
230		.hsync_len	= 5,		.vsync_len	= 1,
231
232		.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
233		.vmode		= FB_VMODE_NONINTERLACED,
234	},
235};
236
237static struct fb_monspecs at91fb_default_monspecs = {
238	.manufacturer	= "HIT",
239	.monitor	= "TX09D70VM1CCA",
240
241	.modedb		= at91_tft_vga_modes,
242	.modedb_len	= ARRAY_SIZE(at91_tft_vga_modes),
243	.hfmin		= 15000,
244	.hfmax		= 64000,
245	.vfmin		= 50,
246	.vfmax		= 150,
247};
248
249#define AT91SAM9263_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
250					| ATMEL_LCDC_DISTYPE_TFT \
251					| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
252
253static void at91_lcdc_power_control(int on)
254{
255	at91_set_gpio_value(AT91_PIN_PA30, on);
256}
257
258/* Driver datas */
259static struct atmel_lcdfb_info __initdata neocore926_lcdc_data = {
260	.lcdcon_is_backlight		= true,
261	.default_bpp			= 16,
262	.default_dmacon			= ATMEL_LCDC_DMAEN,
263	.default_lcdcon2		= AT91SAM9263_DEFAULT_LCDCON2,
264	.default_monspecs		= &at91fb_default_monspecs,
265	.atmel_lcdfb_power_control	= at91_lcdc_power_control,
266	.guard_time			= 1,
267	.lcd_wiring_mode		= ATMEL_LCDC_WIRING_RGB555,
268};
269
270#else
271static struct atmel_lcdfb_info __initdata neocore926_lcdc_data;
272#endif
273
274
275/*
276 * GPIO Buttons
277 */
278#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
279static struct gpio_keys_button neocore926_buttons[] = {
280	{	/* BP1, "leftclic" */
281		.code		= BTN_LEFT,
282		.gpio		= AT91_PIN_PC5,
283		.active_low	= 1,
284		.desc		= "left_click",
285		.wakeup		= 1,
286	},
287	{	/* BP2, "rightclic" */
288		.code		= BTN_RIGHT,
289		.gpio		= AT91_PIN_PC4,
290		.active_low	= 1,
291		.desc		= "right_click",
292		.wakeup		= 1,
293	},
294};
295
296static struct gpio_keys_platform_data neocore926_button_data = {
297	.buttons	= neocore926_buttons,
298	.nbuttons	= ARRAY_SIZE(neocore926_buttons),
299};
300
301static struct platform_device neocore926_button_device = {
302	.name		= "gpio-keys",
303	.id		= -1,
304	.num_resources	= 0,
305	.dev		= {
306		.platform_data	= &neocore926_button_data,
307	}
308};
309
310static void __init neocore926_add_device_buttons(void)
311{
312	at91_set_GPIO_periph(AT91_PIN_PC5, 0);	/* left button */
313	at91_set_deglitch(AT91_PIN_PC5, 1);
314	at91_set_GPIO_periph(AT91_PIN_PC4, 0);	/* right button */
315	at91_set_deglitch(AT91_PIN_PC4, 1);
316
317	platform_device_register(&neocore926_button_device);
318}
319#else
320static void __init neocore926_add_device_buttons(void) {}
321#endif
322
323
324/*
325 * AC97
326 */
327static struct ac97c_platform_data neocore926_ac97_data = {
328	.reset_pin	= AT91_PIN_PA13,
329};
330
331
332static void __init neocore926_board_init(void)
333{
334	/* Serial */
335	/* DBGU on ttyS0. (Rx & Tx only) */
336	at91_register_uart(0, 0, 0);
337
338	/* USART0 on ttyS1. (Rx, Tx, RTS, CTS) */
339	at91_register_uart(AT91SAM9263_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
340	at91_add_device_serial();
341
342	/* USB Host */
343	at91_add_device_usbh(&neocore926_usbh_data);
344
345	/* USB Device */
346	at91_add_device_udc(&neocore926_udc_data);
347
348	/* SPI */
349	at91_set_gpio_output(AT91_PIN_PE20, 1);		/* select spi0 clock */
350	at91_add_device_spi(neocore926_spi_devices, ARRAY_SIZE(neocore926_spi_devices));
351
352	/* Touchscreen */
353	neocore926_add_device_ts();
354
355	/* MMC */
356	at91_add_device_mmc(1, &neocore926_mmc_data);
357
358	/* Ethernet */
359	at91_add_device_eth(&neocore926_macb_data);
360
361	/* NAND */
362	neocore926_add_device_nand();
363
364	/* I2C */
365	at91_add_device_i2c(NULL, 0);
366
367	/* LCD Controller */
368	at91_add_device_lcdc(&neocore926_lcdc_data);
369
370	/* Push Buttons */
371	neocore926_add_device_buttons();
372
373	/* AC97 */
374	at91_add_device_ac97(&neocore926_ac97_data);
375}
376
377MACHINE_START(NEOCORE926, "ADENEO NEOCORE 926")
378	/* Maintainer: ADENEO */
379	.timer		= &at91sam926x_timer,
380	.map_io		= at91_map_io,
381	.init_early	= neocore926_init_early,
382	.init_irq	= at91_init_irq_default,
383	.init_machine	= neocore926_board_init,
384MACHINE_END