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_init_early(void)
 51{
 52	/* Initialize processor: 12.00 MHz crystal */
 53	at91_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
 62/*
 63 * USB Host port
 64 */
 65static struct at91_usbh_data __initdata ek_usbh_data = {
 66	.ports		= 2,
 67};
 68
 69/*
 70 * USB Device port
 71 */
 72static struct at91_udc_data __initdata ek_udc_data = {
 73	.vbus_pin	= AT91_PIN_PB11,
 74	.pullup_pin	= 0,		/* pull-up driven by UDC */
 75};
 76
 77/*
 78 * SPI devices.
 79 */
 80static struct spi_board_info ek_spi_devices[] = {
 81#if !defined(CONFIG_MMC_AT91)
 82	{	/* DataFlash chip */
 83		.modalias	= "mtd_dataflash",
 84		.chip_select	= 0,
 85		.max_speed_hz	= 15 * 1000 * 1000,
 86		.bus_num	= 0,
 87	}
 88#endif
 89};
 90
 91/*
 92 * MACB Ethernet device
 93 */
 94static struct at91_eth_data __initdata ek_macb_data = {
 95	.phy_irq_pin	= AT91_PIN_PE31,
 96	.is_rmii	= 1,
 97};
 98
 99/*
100 * NAND flash
101 */
102static struct mtd_partition __initdata ek_nand_partition[] = {
103	{
104		.name	= "Linux Kernel",
105		.offset	= 0,
106		.size	= SZ_16M,
107	},
108	{
109		.name	= "Root FS",
110		.offset	= MTDPART_OFS_NXTBLK,
111		.size	= 120 * SZ_1M,
112	},
113	{
114		.name	= "FS",
115		.offset	= MTDPART_OFS_NXTBLK,
116		.size	= 120 * SZ_1M,
117	}
118};
119
120static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
121{
122	*num_partitions = ARRAY_SIZE(ek_nand_partition);
123	return ek_nand_partition;
124}
125
126static struct atmel_nand_data __initdata ek_nand_data = {
127	.ale		= 21,
128	.cle		= 22,
129//	.det_pin	= ... not connected
130	.rdy_pin	= AT91_PIN_PA22,
131	.enable_pin	= AT91_PIN_PD15,
132	.partition_info	= nand_partitions,
133};
134
135static struct sam9_smc_config __initdata ek_nand_smc_config = {
136	.ncs_read_setup		= 0,
137	.nrd_setup		= 1,
138	.ncs_write_setup	= 0,
139	.nwe_setup		= 1,
140
141	.ncs_read_pulse		= 3,
142	.nrd_pulse		= 3,
143	.ncs_write_pulse	= 3,
144	.nwe_pulse		= 3,
145
146	.read_cycle		= 5,
147	.write_cycle		= 5,
148
149	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
150	.tdf_cycles		= 2,
151};
152
153static void __init ek_add_device_nand(void)
154{
155	/* configure chip-select 3 (NAND) */
156	sam9_smc_configure(3, &ek_nand_smc_config);
157
158	at91_add_device_nand(&ek_nand_data);
159}
160
161
162/*
163 * GPIO Buttons
164 */
165#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
166static struct gpio_keys_button ek_buttons[] = {
167	{	/* USER PUSH BUTTON */
168		.code		= KEY_ENTER,
169		.gpio		= AT91_PIN_PB10,
170		.active_low	= 1,
171		.desc		= "user_pb",
172		.wakeup		= 1,
173	}
174};
175
176static struct gpio_keys_platform_data ek_button_data = {
177	.buttons	= ek_buttons,
178	.nbuttons	= ARRAY_SIZE(ek_buttons),
179};
180
181static struct platform_device ek_button_device = {
182	.name		= "gpio-keys",
183	.id		= -1,
184	.num_resources	= 0,
185	.dev		= {
186		.platform_data	= &ek_button_data,
187	}
188};
189
190static void __init ek_add_device_buttons(void)
191{
192	at91_set_GPIO_periph(AT91_PIN_PB10, 1);	/* user push button, pull up enabled */
193	at91_set_deglitch(AT91_PIN_PB10, 1);
194
195	platform_device_register(&ek_button_device);
196}
197#else
198static void __init ek_add_device_buttons(void) {}
199#endif
200
201/*
202 * LEDs
203 */
204static struct gpio_led ek_leds[] = {
205	{	/* user_led (green) */
206		.name			= "user_led",
207		.gpio			= AT91_PIN_PB21,
208		.active_low		= 1,
209		.default_trigger	= "heartbeat",
210	}
211};
212
213
214static void __init ek_board_init(void)
215{
216	/* Serial */
217	at91_add_device_serial();
218	/* USB Host */
219	at91_add_device_usbh(&ek_usbh_data);
220	/* USB Device */
221	at91_add_device_udc(&ek_udc_data);
222	/* SPI */
223	at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
224	/* Ethernet */
225	at91_add_device_eth(&ek_macb_data);
226	/* NAND */
227	ek_add_device_nand();
228	/* I2C */
229	at91_add_device_i2c(NULL, 0);
230	/* Push Buttons */
231	ek_add_device_buttons();
232	/* LEDs */
233	at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
234	/* shutdown controller, wakeup button (5 msec low) */
235	at91_sys_write(AT91_SHDW_MR, AT91_SHDW_CPTWK0_(10) | AT91_SHDW_WKMODE0_LOW
236				| AT91_SHDW_RTTWKEN);
237}
238
239MACHINE_START(USB_A9263, "CALAO USB_A9263")
240	/* Maintainer: calao-systems */
241	.timer		= &at91sam926x_timer,
242	.map_io		= at91_map_io,
243	.init_early	= ek_init_early,
244	.init_irq	= at91_init_irq_default,
245	.init_machine	= ek_board_init,
246MACHINE_END