1/*
2 * linux/arch/arm/mach-at91/board-sam9263ek.c
3 *
4 *  Copyright (C) 2005 SAN People
5 *  Copyright (C) 2007 Atmel Corporation.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
20 */
21
22#include <linux/types.h>
23#include <linux/init.h>
24#include <linux/mm.h>
25#include <linux/module.h>
26#include <linux/platform_device.h>
27#include <linux/spi/spi.h>
28#include <linux/spi/ads7846.h>
29
30#include <asm/hardware.h>
31#include <asm/setup.h>
32#include <asm/mach-types.h>
33#include <asm/irq.h>
34
35#include <asm/mach/arch.h>
36#include <asm/mach/map.h>
37#include <asm/mach/irq.h>
38
39#include <asm/arch/board.h>
40#include <asm/arch/gpio.h>
41#include <asm/arch/at91sam926x_mc.h>
42
43#include "generic.h"
44
45
46/*
47 * Serial port configuration.
48 *    0 .. 2 = USART0 .. USART2
49 *    3      = DBGU
50 */
51static struct at91_uart_config __initdata ek_uart_config = {
52	.console_tty	= 0,				/* ttyS0 */
53	.nr_tty		= 2,
54	.tty_map	= { 3, 0, -1, -1, }		/* ttyS0, ..., ttyS3 */
55};
56
57static void __init ek_map_io(void)
58{
59	/* Initialize processor: 16.367 MHz crystal */
60	at91sam9263_initialize(16367660);
61
62	/* Setup the serial ports and console */
63	at91_init_serial(&ek_uart_config);
64}
65
66static void __init ek_init_irq(void)
67{
68	at91sam9263_init_interrupts(NULL);
69}
70
71
72/*
73 * USB Host port
74 */
75static struct at91_usbh_data __initdata ek_usbh_data = {
76	.ports		= 2,
77	.vbus_pin	= { AT91_PIN_PA24, AT91_PIN_PA21 },
78};
79
80/*
81 * USB Device port
82 */
83static struct at91_udc_data __initdata ek_udc_data = {
84	.vbus_pin	= AT91_PIN_PA25,
85	.pullup_pin	= 0,		/* pull-up driven by UDC */
86};
87
88
89/*
90 * ADS7846 Touchscreen
91 */
92#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
93static int ads7843_pendown_state(void)
94{
95	return !at91_get_gpio_value(AT91_PIN_PA15);	/* Touchscreen PENIRQ */
96}
97
98static struct ads7846_platform_data ads_info = {
99	.model			= 7843,
100	.x_min			= 150,
101	.x_max			= 3830,
102	.y_min			= 190,
103	.y_max			= 3830,
104	.vref_delay_usecs	= 100,
105	.x_plate_ohms		= 450,
106	.y_plate_ohms		= 250,
107	.pressure_max		= 15000,
108	.debounce_max		= 1,
109	.debounce_rep		= 0,
110	.debounce_tol		= (~0),
111	.get_pendown_state	= ads7843_pendown_state,
112};
113
114static void __init ek_add_device_ts(void)
115{
116	at91_set_B_periph(AT91_PIN_PA15, 1);	/* External IRQ1, with pullup */
117	at91_set_gpio_input(AT91_PIN_PA31, 1);	/* Touchscreen BUSY signal */
118}
119#else
120static void __init ek_add_device_ts(void) {}
121#endif
122
123/*
124 * SPI devices.
125 */
126static struct spi_board_info ek_spi_devices[] = {
127#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
128	{	/* DataFlash card */
129		.modalias	= "mtd_dataflash",
130		.chip_select	= 0,
131		.max_speed_hz	= 15 * 1000 * 1000,
132		.bus_num	= 0,
133	},
134#endif
135#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
136	{
137		.modalias	= "ads7846",
138		.chip_select	= 3,
139		.max_speed_hz	= 125000 * 26,	/* (max sample rate @ 3V) * (cmd + data + overhead) */
140		.bus_num	= 0,
141		.platform_data	= &ads_info,
142		.irq		= AT91SAM9263_ID_IRQ1,
143	},
144#endif
145};
146
147
148/*
149 * MCI (SD/MMC)
150 */
151static struct at91_mmc_data __initdata ek_mmc_data = {
152	.wire4		= 1,
153	.det_pin	= AT91_PIN_PE18,
154	.wp_pin		= AT91_PIN_PE19,
155//	.vcc_pin	= ... not connected
156};
157
158
159/*
160 * MACB Ethernet device
161 */
162static struct at91_eth_data __initdata ek_macb_data = {
163	.is_rmii	= 1,
164};
165
166
167/*
168 * NAND flash
169 */
170static struct mtd_partition __initdata ek_nand_partition[] = {
171	{
172		.name	= "Partition 1",
173		.offset	= 0,
174		.size	= 64 * 1024 * 1024,
175	},
176	{
177		.name	= "Partition 2",
178		.offset	= 64 * 1024 * 1024,
179		.size	= MTDPART_SIZ_FULL,
180	},
181};
182
183static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
184{
185	*num_partitions = ARRAY_SIZE(ek_nand_partition);
186	return ek_nand_partition;
187}
188
189static struct at91_nand_data __initdata ek_nand_data = {
190	.ale		= 21,
191	.cle		= 22,
192//	.det_pin	= ... not connected
193	.rdy_pin	= AT91_PIN_PA22,
194	.enable_pin	= AT91_PIN_PD15,
195	.partition_info	= nand_partitions,
196#if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
197	.bus_width_16	= 1,
198#else
199	.bus_width_16	= 0,
200#endif
201};
202
203
204/*
205 * AC97
206 */
207static struct atmel_ac97_data ek_ac97_data = {
208	.reset_pin	= AT91_PIN_PA13,
209};
210
211
212static void __init ek_board_init(void)
213{
214	/* Serial */
215	at91_add_device_serial();
216	/* USB Host */
217	at91_add_device_usbh(&ek_usbh_data);
218	/* USB Device */
219	at91_add_device_udc(&ek_udc_data);
220	/* SPI */
221	at91_set_gpio_output(AT91_PIN_PE20, 1);		/* select spi0 clock */
222	at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
223	/* Touchscreen */
224	ek_add_device_ts();
225	/* MMC */
226	at91_add_device_mmc(1, &ek_mmc_data);
227	/* Ethernet */
228	at91_add_device_eth(&ek_macb_data);
229	/* NAND */
230	at91_add_device_nand(&ek_nand_data);
231	/* I2C */
232	at91_add_device_i2c();
233	/* AC97 */
234	at91_add_device_ac97(&ek_ac97_data);
235}
236
237MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")
238	/* Maintainer: Atmel */
239	.phys_io	= AT91_BASE_SYS,
240	.io_pg_offst	= (AT91_VA_BASE_SYS >> 18) & 0xfffc,
241	.boot_params	= AT91_SDRAM_BASE + 0x100,
242	.timer		= &at91sam926x_timer,
243	.map_io		= ek_map_io,
244	.init_irq	= ek_init_irq,
245	.init_machine	= ek_board_init,
246MACHINE_END
247