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	/* 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 */
72static 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 */
81static 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)
91static int ads7843_pendown_state(void)
92{
93	return !at91_get_gpio_value(AT91_PIN_PA15);	/* Touchscreen PENIRQ */
94}
95
96static 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
112static 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
118static void __init neocore926_add_device_ts(void) {}
119#endif
120
121/*
122 * SPI devices.
123 */
124static 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 */
149static 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 */
160static 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 */
169static 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
187static 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	.ecc_mode		= NAND_ECC_SOFT,
194	.parts			= neocore926_nand_partition,
195	.num_parts		= ARRAY_SIZE(neocore926_nand_partition),
196	.det_pin		= -EINVAL,
197};
198
199static struct sam9_smc_config __initdata neocore926_nand_smc_config = {
200	.ncs_read_setup		= 0,
201	.nrd_setup		= 1,
202	.ncs_write_setup	= 0,
203	.nwe_setup		= 1,
204
205	.ncs_read_pulse		= 4,
206	.nrd_pulse		= 4,
207	.ncs_write_pulse	= 4,
208	.nwe_pulse		= 4,
209
210	.read_cycle		= 6,
211	.write_cycle		= 6,
212
213	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
214	.tdf_cycles		= 2,
215};
216
217static void __init neocore926_add_device_nand(void)
218{
219	/* configure chip-select 3 (NAND) */
220	sam9_smc_configure(0, 3, &neocore926_nand_smc_config);
221
222	at91_add_device_nand(&neocore926_nand_data);
223}
224
225
226/*
227 * LCD Controller
228 */
229#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
230static struct fb_videomode at91_tft_vga_modes[] = {
231	{
232		.name		= "TX09D50VM1CCA @ 60",
233		.refresh	= 60,
234		.xres		= 240,		.yres		= 320,
235		.pixclock	= KHZ2PICOS(5000),
236
237		.left_margin	= 1,		.right_margin	= 33,
238		.upper_margin	= 1,		.lower_margin	= 0,
239		.hsync_len	= 5,		.vsync_len	= 1,
240
241		.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
242		.vmode		= FB_VMODE_NONINTERLACED,
243	},
244};
245
246static struct fb_monspecs at91fb_default_monspecs = {
247	.manufacturer	= "HIT",
248	.monitor	= "TX09D70VM1CCA",
249
250	.modedb		= at91_tft_vga_modes,
251	.modedb_len	= ARRAY_SIZE(at91_tft_vga_modes),
252	.hfmin		= 15000,
253	.hfmax		= 64000,
254	.vfmin		= 50,
255	.vfmax		= 150,
256};
257
258#define AT91SAM9263_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
259					| ATMEL_LCDC_DISTYPE_TFT \
260					| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
261
262static void at91_lcdc_power_control(int on)
263{
264	at91_set_gpio_value(AT91_PIN_PA30, on);
265}
266
267/* Driver datas */
268static struct atmel_lcdfb_info __initdata neocore926_lcdc_data = {
269	.lcdcon_is_backlight		= true,
270	.default_bpp			= 16,
271	.default_dmacon			= ATMEL_LCDC_DMAEN,
272	.default_lcdcon2		= AT91SAM9263_DEFAULT_LCDCON2,
273	.default_monspecs		= &at91fb_default_monspecs,
274	.atmel_lcdfb_power_control	= at91_lcdc_power_control,
275	.guard_time			= 1,
276	.lcd_wiring_mode		= ATMEL_LCDC_WIRING_RGB555,
277};
278
279#else
280static struct atmel_lcdfb_info __initdata neocore926_lcdc_data;
281#endif
282
283
284/*
285 * GPIO Buttons
286 */
287#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
288static struct gpio_keys_button neocore926_buttons[] = {
289	{	/* BP1, "leftclic" */
290		.code		= BTN_LEFT,
291		.gpio		= AT91_PIN_PC5,
292		.active_low	= 1,
293		.desc		= "left_click",
294		.wakeup		= 1,
295	},
296	{	/* BP2, "rightclic" */
297		.code		= BTN_RIGHT,
298		.gpio		= AT91_PIN_PC4,
299		.active_low	= 1,
300		.desc		= "right_click",
301		.wakeup		= 1,
302	},
303};
304
305static struct gpio_keys_platform_data neocore926_button_data = {
306	.buttons	= neocore926_buttons,
307	.nbuttons	= ARRAY_SIZE(neocore926_buttons),
308};
309
310static struct platform_device neocore926_button_device = {
311	.name		= "gpio-keys",
312	.id		= -1,
313	.num_resources	= 0,
314	.dev		= {
315		.platform_data	= &neocore926_button_data,
316	}
317};
318
319static void __init neocore926_add_device_buttons(void)
320{
321	at91_set_GPIO_periph(AT91_PIN_PC5, 0);	/* left button */
322	at91_set_deglitch(AT91_PIN_PC5, 1);
323	at91_set_GPIO_periph(AT91_PIN_PC4, 0);	/* right button */
324	at91_set_deglitch(AT91_PIN_PC4, 1);
325
326	platform_device_register(&neocore926_button_device);
327}
328#else
329static void __init neocore926_add_device_buttons(void) {}
330#endif
331
332
333/*
334 * AC97
335 */
336static struct ac97c_platform_data neocore926_ac97_data = {
337	.reset_pin	= AT91_PIN_PA13,
338};
339
340
341static void __init neocore926_board_init(void)
342{
343	/* Serial */
344	at91_add_device_serial();
345
346	/* USB Host */
347	at91_add_device_usbh(&neocore926_usbh_data);
348
349	/* USB Device */
350	at91_add_device_udc(&neocore926_udc_data);
351
352	/* SPI */
353	at91_set_gpio_output(AT91_PIN_PE20, 1);		/* select spi0 clock */
354	at91_add_device_spi(neocore926_spi_devices, ARRAY_SIZE(neocore926_spi_devices));
355
356	/* Touchscreen */
357	neocore926_add_device_ts();
358
359	/* MMC */
360	at91_add_device_mmc(1, &neocore926_mmc_data);
361
362	/* Ethernet */
363	at91_add_device_eth(&neocore926_macb_data);
364
365	/* NAND */
366	neocore926_add_device_nand();
367
368	/* I2C */
369	at91_add_device_i2c(NULL, 0);
370
371	/* LCD Controller */
372	at91_add_device_lcdc(&neocore926_lcdc_data);
373
374	/* Push Buttons */
375	neocore926_add_device_buttons();
376
377	/* AC97 */
378	at91_add_device_ac97(&neocore926_ac97_data);
379}
380
381MACHINE_START(NEOCORE926, "ADENEO NEOCORE 926")
382	/* Maintainer: ADENEO */
383	.timer		= &at91sam926x_timer,
384	.map_io		= at91_map_io,
385	.init_early	= neocore926_init_early,
386	.init_irq	= at91_init_irq_default,
387	.init_machine	= neocore926_board_init,
388MACHINE_END
389