1/*
  2 * linux/arch/arm/mach-at91/board-snapper9260.c
  3 *
  4 *  Copyright (C) 2010 Bluewater System Ltd
  5 *
  6 * Author: Andre Renaud <andre@bluewatersys.com>
  7 * Author: Ryan Mallon
  8 *
  9 * This program is free software; you can redistribute it and/or modify
 10 * it under the terms of the GNU General Public License as published by
 11 * the Free Software Foundation; either version 2 of the License, or
 12 * (at your option) any later version.
 13 *
 14 * This program is distributed in the hope that it will be useful,
 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 17 * GNU General Public License for more details.
 18 *
 19 * You should have received a copy of the GNU General Public License
 20 * along with this program; if not, write to the Free Software
 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 22 *
 23 */
 24
 25#include <linux/init.h>
 26#include <linux/gpio.h>
 27#include <linux/platform_device.h>
 28#include <linux/spi/spi.h>
 29#include <linux/i2c/pca953x.h>
 30
 31#include <asm/mach-types.h>
 32#include <asm/mach/arch.h>
 33
 34#include <mach/hardware.h>
 35#include <mach/board.h>
 36#include <mach/at91sam9_smc.h>
 37
 38#include "sam9_smc.h"
 39#include "generic.h"
 40
 41#define SNAPPER9260_IO_EXP_GPIO(x)	(NR_BUILTIN_GPIO + (x))
 42
 43static void __init snapper9260_init_early(void)
 44{
 45	at91_initialize(18432000);
 46}
 47
 48static struct at91_usbh_data __initdata snapper9260_usbh_data = {
 49	.ports		= 2,
 50	.vbus_pin	= {-EINVAL, -EINVAL},
 51	.overcurrent_pin= {-EINVAL, -EINVAL},
 52};
 53
 54static struct at91_udc_data __initdata snapper9260_udc_data = {
 55	.vbus_pin		= SNAPPER9260_IO_EXP_GPIO(5),
 56	.vbus_active_low	= 1,
 57	.vbus_polled		= 1,
 58	.pullup_pin		= -EINVAL,
 59};
 60
 61static struct macb_platform_data snapper9260_macb_data = {
 62	.phy_irq_pin	= -EINVAL,
 63	.is_rmii	= 1,
 64};
 65
 66static struct mtd_partition __initdata snapper9260_nand_partitions[] = {
 67	{
 68		.name	= "Preboot",
 69		.offset	= 0,
 70		.size	= SZ_128K,
 71	},
 72	{
 73		.name	= "Bootloader",
 74		.offset	= MTDPART_OFS_APPEND,
 75		.size	= SZ_256K,
 76	},
 77	{
 78		.name	= "Environment",
 79		.offset	= MTDPART_OFS_APPEND,
 80		.size	= SZ_128K,
 81	},
 82	{
 83		.name	= "Kernel",
 84		.offset	= MTDPART_OFS_APPEND,
 85		.size	= SZ_4M,
 86	},
 87	{
 88		.name	= "Filesystem",
 89		.offset	= MTDPART_OFS_APPEND,
 90		.size	= MTDPART_SIZ_FULL,
 91	},
 92};
 93
 94static struct atmel_nand_data __initdata snapper9260_nand_data = {
 95	.ale		= 21,
 96	.cle		= 22,
 97	.rdy_pin	= AT91_PIN_PC13,
 98	.parts		= snapper9260_nand_partitions,
 99	.num_parts	= ARRAY_SIZE(snapper9260_nand_partitions),
100	.bus_width_16	= 0,
101	.enable_pin	= -EINVAL,
102	.det_pin	= -EINVAL,
103	.ecc_mode	= NAND_ECC_SOFT,
104};
105
106static struct sam9_smc_config __initdata snapper9260_nand_smc_config = {
107	.ncs_read_setup		= 0,
108	.nrd_setup		= 0,
109	.ncs_write_setup	= 0,
110	.nwe_setup		= 0,
111
112	.ncs_read_pulse		= 5,
113	.nrd_pulse		= 2,
114	.ncs_write_pulse	= 5,
115	.nwe_pulse		= 2,
116
117	.read_cycle		= 7,
118	.write_cycle		= 7,
119
120	.mode			= (AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
121				   AT91_SMC_EXNWMODE_DISABLE),
122	.tdf_cycles		= 1,
123};
124
125static struct pca953x_platform_data snapper9260_io_expander_data = {
126	.gpio_base		= SNAPPER9260_IO_EXP_GPIO(0),
127};
128
129static struct i2c_board_info __initdata snapper9260_i2c_devices[] = {
130	{
131		/* IO expander */
132		I2C_BOARD_INFO("max7312", 0x28),
133		.platform_data = &snapper9260_io_expander_data,
134	},
135	{
136		/* Audio codec */
137		I2C_BOARD_INFO("tlv320aic23", 0x1a),
138	},
139};
140
141static struct i2c_board_info __initdata snapper9260_i2c_isl1208 = {
142		/* RTC */
143		I2C_BOARD_INFO("isl1208", 0x6f),
144};
145
146static void __init snapper9260_add_device_nand(void)
147{
148	at91_set_A_periph(AT91_PIN_PC14, 0);
149	sam9_smc_configure(0, 3, &snapper9260_nand_smc_config);
150	at91_add_device_nand(&snapper9260_nand_data);
151}
152
153static void __init snapper9260_board_init(void)
154{
155	at91_add_device_i2c(snapper9260_i2c_devices,
156			    ARRAY_SIZE(snapper9260_i2c_devices));
157
158	snapper9260_i2c_isl1208.irq = gpio_to_irq(AT91_PIN_PA31);
159	i2c_register_board_info(0, &snapper9260_i2c_isl1208, 1);
160
161	/* Debug on ttyS0 */
162	at91_register_uart(0, 0, 0);
163
164	at91_register_uart(AT91SAM9260_ID_US0, 1,
165			   ATMEL_UART_CTS | ATMEL_UART_RTS);
166	at91_register_uart(AT91SAM9260_ID_US1, 2,
167			   ATMEL_UART_CTS | ATMEL_UART_RTS);
168	at91_register_uart(AT91SAM9260_ID_US2, 3, 0);
169	at91_add_device_serial();
170	at91_add_device_usbh(&snapper9260_usbh_data);
171	at91_add_device_udc(&snapper9260_udc_data);
172	at91_add_device_eth(&snapper9260_macb_data);
173	at91_add_device_ssc(AT91SAM9260_ID_SSC, (ATMEL_SSC_TF | ATMEL_SSC_TK |
174						 ATMEL_SSC_TD | ATMEL_SSC_RD));
175	snapper9260_add_device_nand();
176}
177
178MACHINE_START(SNAPPER_9260, "Bluewater Systems Snapper 9260/9G20 module")
179	.timer		= &at91sam926x_timer,
180	.map_io		= at91_map_io,
181	.init_early	= snapper9260_init_early,
182	.init_irq	= at91_init_irq_default,
183	.init_machine	= snapper9260_board_init,
184MACHINE_END
185
186