/arch/arm/mach-at91/board-usb-a9263.c

  1/*
  2 * linux/arch/arm/mach-at91/board-usb-a9263.c
  3 *
  4 *  Copyright (C) 2005 SAN People
  5 *  Copyright (C) 2007 Atmel Corporation.
  6 *  Copyright (C) 2007 Calao-systems
  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/init.h>
 25#include <linux/mm.h>
 26#include <linux/module.h>
 27#include <linux/platform_device.h>
 28#include <linux/spi/spi.h>
 29#include <linux/gpio_keys.h>
 30#include <linux/input.h>
 31
 32#include <asm/setup.h>
 33#include <asm/mach-types.h>
 34#include <asm/irq.h>
 35
 36#include <asm/mach/arch.h>
 37#include <asm/mach/map.h>
 38#include <asm/mach/irq.h>
 39
 40#include <mach/hardware.h>
 41#include <mach/board.h>
 42#include <mach/gpio.h>
 43#include <mach/at91sam9_smc.h>
 44#include <mach/at91_shdwc.h>
 45
 46#include "sam9_smc.h"
 47#include "generic.h"
 48
 49
 50static void __init ek_map_io(void)
 51{
 52	/* Initialize processor: 12.00 MHz crystal */
 53	at91sam9263_initialize(12000000);
 54
 55	/* DBGU on ttyS0. (Rx & Tx only) */
 56	at91_register_uart(0, 0, 0);
 57
 58	/* set serial console to ttyS0 (ie, DBGU) */
 59	at91_set_serial_console(0);
 60}
 61
 62static void __init ek_init_irq(void)
 63{
 64	at91sam9263_init_interrupts(NULL);
 65}
 66
 67
 68/*
 69 * USB Host port
 70 */
 71static struct at91_usbh_data __initdata ek_usbh_data = {
 72	.ports		= 2,
 73};
 74
 75/*
 76 * USB Device port
 77 */
 78static struct at91_udc_data __initdata ek_udc_data = {
 79	.vbus_pin	= AT91_PIN_PB11,
 80	.pullup_pin	= 0,		/* pull-up driven by UDC */
 81};
 82
 83/*
 84 * SPI devices.
 85 */
 86static struct spi_board_info ek_spi_devices[] = {
 87#if !defined(CONFIG_MMC_AT91)
 88	{	/* DataFlash chip */
 89		.modalias	= "mtd_dataflash",
 90		.chip_select	= 0,
 91		.max_speed_hz	= 15 * 1000 * 1000,
 92		.bus_num	= 0,
 93	}
 94#endif
 95};
 96
 97/*
 98 * MACB Ethernet device
 99 */
100static struct at91_eth_data __initdata ek_macb_data = {
101	.phy_irq_pin	= AT91_PIN_PE31,
102	.is_rmii	= 1,
103};
104
105/*
106 * NAND flash
107 */
108static struct mtd_partition __initdata ek_nand_partition[] = {
109	{
110		.name	= "Linux Kernel",
111		.offset	= 0,
112		.size	= SZ_16M,
113	},
114	{
115		.name	= "Root FS",
116		.offset	= MTDPART_OFS_NXTBLK,
117		.size	= 120 * SZ_1M,
118	},
119	{
120		.name	= "FS",
121		.offset	= MTDPART_OFS_NXTBLK,
122		.size	= 120 * SZ_1M,
123	}
124};
125
126static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
127{
128	*num_partitions = ARRAY_SIZE(ek_nand_partition);
129	return ek_nand_partition;
130}
131
132static struct atmel_nand_data __initdata ek_nand_data = {
133	.ale		= 21,
134	.cle		= 22,
135//	.det_pin	= ... not connected
136	.rdy_pin	= AT91_PIN_PA22,
137	.enable_pin	= AT91_PIN_PD15,
138	.partition_info	= nand_partitions,
139};
140
141static struct sam9_smc_config __initdata ek_nand_smc_config = {
142	.ncs_read_setup		= 0,
143	.nrd_setup		= 1,
144	.ncs_write_setup	= 0,
145	.nwe_setup		= 1,
146
147	.ncs_read_pulse		= 3,
148	.nrd_pulse		= 3,
149	.ncs_write_pulse	= 3,
150	.nwe_pulse		= 3,
151
152	.read_cycle		= 5,
153	.write_cycle		= 5,
154
155	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
156	.tdf_cycles		= 2,
157};
158
159static void __init ek_add_device_nand(void)
160{
161	/* configure chip-select 3 (NAND) */
162	sam9_smc_configure(3, &ek_nand_smc_config);
163
164	at91_add_device_nand(&ek_nand_data);
165}
166
167
168/*
169 * GPIO Buttons
170 */
171#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
172static struct gpio_keys_button ek_buttons[] = {
173	{	/* USER PUSH BUTTON */
174		.code		= KEY_ENTER,
175		.gpio		= AT91_PIN_PB10,
176		.active_low	= 1,
177		.desc		= "user_pb",
178		.wakeup		= 1,
179	}
180};
181
182static struct gpio_keys_platform_data ek_button_data = {
183	.buttons	= ek_buttons,
184	.nbuttons	= ARRAY_SIZE(ek_buttons),
185};
186
187static struct platform_device ek_button_device = {
188	.name		= "gpio-keys",
189	.id		= -1,
190	.num_resources	= 0,
191	.dev		= {
192		.platform_data	= &ek_button_data,
193	}
194};
195
196static void __init ek_add_device_buttons(void)
197{
198	at91_set_GPIO_periph(AT91_PIN_PB10, 1);	/* user push button, pull up enabled */
199	at91_set_deglitch(AT91_PIN_PB10, 1);
200
201	platform_device_register(&ek_button_device);
202}
203#else
204static void __init ek_add_device_buttons(void) {}
205#endif
206
207/*
208 * LEDs
209 */
210static struct gpio_led ek_leds[] = {
211	{	/* user_led (green) */
212		.name			= "user_led",
213		.gpio			= AT91_PIN_PB21,
214		.active_low		= 1,
215		.default_trigger	= "heartbeat",
216	}
217};
218
219
220static void __init ek_board_init(void)
221{
222	/* Serial */
223	at91_add_device_serial();
224	/* USB Host */
225	at91_add_device_usbh(&ek_usbh_data);
226	/* USB Device */
227	at91_add_device_udc(&ek_udc_data);
228	/* SPI */
229	at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
230	/* Ethernet */
231	at91_add_device_eth(&ek_macb_data);
232	/* NAND */
233	ek_add_device_nand();
234	/* I2C */
235	at91_add_device_i2c(NULL, 0);
236	/* Push Buttons */
237	ek_add_device_buttons();
238	/* LEDs */
239	at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
240	/* shutdown controller, wakeup button (5 msec low) */
241	at91_sys_write(AT91_SHDW_MR, AT91_SHDW_CPTWK0_(10) | AT91_SHDW_WKMODE0_LOW
242				| AT91_SHDW_RTTWKEN);
243}
244
245MACHINE_START(USB_A9263, "CALAO USB_A9263")
246	/* Maintainer: calao-systems */
247	.phys_io	= AT91_BASE_SYS,
248	.io_pg_offst	= (AT91_VA_BASE_SYS >> 18) & 0xfffc,
249	.boot_params	= AT91_SDRAM_BASE + 0x100,
250	.timer		= &at91sam926x_timer,
251	.map_io		= ek_map_io,
252	.init_irq	= ek_init_irq,
253	.init_machine	= ek_board_init,
254MACHINE_END