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Linux/arch/arm/mach-at91/board-snapper9260.c

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  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/at91sam9_smc.h>
 36 
 37 #include "at91_aic.h"
 38 #include "board.h"
 39 #include "sam9_smc.h"
 40 #include "generic.h"
 41 
 42 #define SNAPPER9260_IO_EXP_GPIO(x)      (NR_BUILTIN_GPIO + (x))
 43 
 44 static void __init snapper9260_init_early(void)
 45 {
 46         at91_initialize(18432000);
 47 }
 48 
 49 static struct at91_usbh_data __initdata snapper9260_usbh_data = {
 50         .ports          = 2,
 51         .vbus_pin       = {-EINVAL, -EINVAL},
 52         .overcurrent_pin= {-EINVAL, -EINVAL},
 53 };
 54 
 55 static struct at91_udc_data __initdata snapper9260_udc_data = {
 56         .vbus_pin               = SNAPPER9260_IO_EXP_GPIO(5),
 57         .vbus_active_low        = 1,
 58         .vbus_polled            = 1,
 59         .pullup_pin             = -EINVAL,
 60 };
 61 
 62 static struct macb_platform_data snapper9260_macb_data = {
 63         .phy_irq_pin    = -EINVAL,
 64         .is_rmii        = 1,
 65 };
 66 
 67 static struct mtd_partition __initdata snapper9260_nand_partitions[] = {
 68         {
 69                 .name   = "Preboot",
 70                 .offset = 0,
 71                 .size   = SZ_128K,
 72         },
 73         {
 74                 .name   = "Bootloader",
 75                 .offset = MTDPART_OFS_APPEND,
 76                 .size   = SZ_256K,
 77         },
 78         {
 79                 .name   = "Environment",
 80                 .offset = MTDPART_OFS_APPEND,
 81                 .size   = SZ_128K,
 82         },
 83         {
 84                 .name   = "Kernel",
 85                 .offset = MTDPART_OFS_APPEND,
 86                 .size   = SZ_4M,
 87         },
 88         {
 89                 .name   = "Filesystem",
 90                 .offset = MTDPART_OFS_APPEND,
 91                 .size   = MTDPART_SIZ_FULL,
 92         },
 93 };
 94 
 95 static struct atmel_nand_data __initdata snapper9260_nand_data = {
 96         .ale            = 21,
 97         .cle            = 22,
 98         .rdy_pin        = AT91_PIN_PC13,
 99         .parts          = snapper9260_nand_partitions,
100         .num_parts      = ARRAY_SIZE(snapper9260_nand_partitions),
101         .bus_width_16   = 0,
102         .enable_pin     = -EINVAL,
103         .det_pin        = -EINVAL,
104         .ecc_mode       = NAND_ECC_SOFT,
105 };
106 
107 static struct sam9_smc_config __initdata snapper9260_nand_smc_config = {
108         .ncs_read_setup         = 0,
109         .nrd_setup              = 0,
110         .ncs_write_setup        = 0,
111         .nwe_setup              = 0,
112 
113         .ncs_read_pulse         = 5,
114         .nrd_pulse              = 2,
115         .ncs_write_pulse        = 5,
116         .nwe_pulse              = 2,
117 
118         .read_cycle             = 7,
119         .write_cycle            = 7,
120 
121         .mode                   = (AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
122                                    AT91_SMC_EXNWMODE_DISABLE),
123         .tdf_cycles             = 1,
124 };
125 
126 static struct pca953x_platform_data snapper9260_io_expander_data = {
127         .gpio_base              = SNAPPER9260_IO_EXP_GPIO(0),
128 };
129 
130 static struct i2c_board_info __initdata snapper9260_i2c_devices[] = {
131         {
132                 /* IO expander */
133                 I2C_BOARD_INFO("max7312", 0x28),
134                 .platform_data = &snapper9260_io_expander_data,
135         },
136         {
137                 /* Audio codec */
138                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
139         },
140 };
141 
142 static struct i2c_board_info __initdata snapper9260_i2c_isl1208 = {
143                 /* RTC */
144                 I2C_BOARD_INFO("isl1208", 0x6f),
145 };
146 
147 static void __init snapper9260_add_device_nand(void)
148 {
149         at91_set_A_periph(AT91_PIN_PC14, 0);
150         sam9_smc_configure(0, 3, &snapper9260_nand_smc_config);
151         at91_add_device_nand(&snapper9260_nand_data);
152 }
153 
154 static void __init snapper9260_board_init(void)
155 {
156         at91_add_device_i2c(snapper9260_i2c_devices,
157                             ARRAY_SIZE(snapper9260_i2c_devices));
158 
159         snapper9260_i2c_isl1208.irq = gpio_to_irq(AT91_PIN_PA31);
160         i2c_register_board_info(0, &snapper9260_i2c_isl1208, 1);
161 
162         /* Debug on ttyS0 */
163         at91_register_uart(0, 0, 0);
164 
165         at91_register_uart(AT91SAM9260_ID_US0, 1,
166                            ATMEL_UART_CTS | ATMEL_UART_RTS);
167         at91_register_uart(AT91SAM9260_ID_US1, 2,
168                            ATMEL_UART_CTS | ATMEL_UART_RTS);
169         at91_register_uart(AT91SAM9260_ID_US2, 3, 0);
170         at91_add_device_serial();
171         at91_add_device_usbh(&snapper9260_usbh_data);
172         at91_add_device_udc(&snapper9260_udc_data);
173         at91_add_device_eth(&snapper9260_macb_data);
174         at91_add_device_ssc(AT91SAM9260_ID_SSC, (ATMEL_SSC_TF | ATMEL_SSC_TK |
175                                                  ATMEL_SSC_TD | ATMEL_SSC_RD));
176         snapper9260_add_device_nand();
177 }
178 
179 MACHINE_START(SNAPPER_9260, "Bluewater Systems Snapper 9260/9G20 module")
180         .init_time      = at91sam926x_pit_init,
181         .map_io         = at91_map_io,
182         .handle_irq     = at91_aic_handle_irq,
183         .init_early     = snapper9260_init_early,
184         .init_irq       = at91_init_irq_default,
185         .init_machine   = snapper9260_board_init,
186 MACHINE_END
187 
188 
189 

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