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/platform_data/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 #include "gpio.h"
42
43 #define SNAPPER9260_IO_EXP_GPIO(x) (NR_BUILTIN_GPIO + (x))
44
snapper9260_init_early(void)45 static void __init snapper9260_init_early(void)
46 {
47 at91_initialize(18432000);
48 }
49
50 static struct at91_usbh_data __initdata snapper9260_usbh_data = {
51 .ports = 2,
52 .vbus_pin = {-EINVAL, -EINVAL},
53 .overcurrent_pin= {-EINVAL, -EINVAL},
54 };
55
56 static struct at91_udc_data __initdata snapper9260_udc_data = {
57 .vbus_pin = SNAPPER9260_IO_EXP_GPIO(5),
58 .vbus_active_low = 1,
59 .vbus_polled = 1,
60 .pullup_pin = -EINVAL,
61 };
62
63 static struct macb_platform_data snapper9260_macb_data = {
64 .phy_irq_pin = -EINVAL,
65 .is_rmii = 1,
66 };
67
68 static struct mtd_partition __initdata snapper9260_nand_partitions[] = {
69 {
70 .name = "Preboot",
71 .offset = 0,
72 .size = SZ_128K,
73 },
74 {
75 .name = "Bootloader",
76 .offset = MTDPART_OFS_APPEND,
77 .size = SZ_256K,
78 },
79 {
80 .name = "Environment",
81 .offset = MTDPART_OFS_APPEND,
82 .size = SZ_128K,
83 },
84 {
85 .name = "Kernel",
86 .offset = MTDPART_OFS_APPEND,
87 .size = SZ_4M,
88 },
89 {
90 .name = "Filesystem",
91 .offset = MTDPART_OFS_APPEND,
92 .size = MTDPART_SIZ_FULL,
93 },
94 };
95
96 static struct atmel_nand_data __initdata snapper9260_nand_data = {
97 .ale = 21,
98 .cle = 22,
99 .rdy_pin = AT91_PIN_PC13,
100 .parts = snapper9260_nand_partitions,
101 .num_parts = ARRAY_SIZE(snapper9260_nand_partitions),
102 .bus_width_16 = 0,
103 .enable_pin = -EINVAL,
104 .det_pin = -EINVAL,
105 .ecc_mode = NAND_ECC_SOFT,
106 };
107
108 static struct sam9_smc_config __initdata snapper9260_nand_smc_config = {
109 .ncs_read_setup = 0,
110 .nrd_setup = 0,
111 .ncs_write_setup = 0,
112 .nwe_setup = 0,
113
114 .ncs_read_pulse = 5,
115 .nrd_pulse = 2,
116 .ncs_write_pulse = 5,
117 .nwe_pulse = 2,
118
119 .read_cycle = 7,
120 .write_cycle = 7,
121
122 .mode = (AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
123 AT91_SMC_EXNWMODE_DISABLE),
124 .tdf_cycles = 1,
125 };
126
127 static struct pca953x_platform_data snapper9260_io_expander_data = {
128 .gpio_base = SNAPPER9260_IO_EXP_GPIO(0),
129 };
130
131 static struct i2c_board_info __initdata snapper9260_i2c_devices[] = {
132 {
133 /* IO expander */
134 I2C_BOARD_INFO("max7312", 0x28),
135 .platform_data = &snapper9260_io_expander_data,
136 },
137 {
138 /* Audio codec */
139 I2C_BOARD_INFO("tlv320aic23", 0x1a),
140 },
141 };
142
143 static struct i2c_board_info __initdata snapper9260_i2c_isl1208 = {
144 /* RTC */
145 I2C_BOARD_INFO("isl1208", 0x6f),
146 };
147
snapper9260_add_device_nand(void)148 static void __init snapper9260_add_device_nand(void)
149 {
150 at91_set_A_periph(AT91_PIN_PC14, 0);
151 sam9_smc_configure(0, 3, &snapper9260_nand_smc_config);
152 at91_add_device_nand(&snapper9260_nand_data);
153 }
154
snapper9260_board_init(void)155 static void __init snapper9260_board_init(void)
156 {
157 at91_register_devices();
158
159 at91_add_device_i2c(snapper9260_i2c_devices,
160 ARRAY_SIZE(snapper9260_i2c_devices));
161
162 snapper9260_i2c_isl1208.irq = gpio_to_irq(AT91_PIN_PA31);
163 i2c_register_board_info(0, &snapper9260_i2c_isl1208, 1);
164
165 /* Debug on ttyS0 */
166 at91_register_uart(0, 0, 0);
167
168 at91_register_uart(AT91SAM9260_ID_US0, 1,
169 ATMEL_UART_CTS | ATMEL_UART_RTS);
170 at91_register_uart(AT91SAM9260_ID_US1, 2,
171 ATMEL_UART_CTS | ATMEL_UART_RTS);
172 at91_register_uart(AT91SAM9260_ID_US2, 3, 0);
173 at91_add_device_serial();
174 at91_add_device_usbh(&snapper9260_usbh_data);
175 at91_add_device_udc(&snapper9260_udc_data);
176 at91_add_device_eth(&snapper9260_macb_data);
177 at91_add_device_ssc(AT91SAM9260_ID_SSC, (ATMEL_SSC_TF | ATMEL_SSC_TK |
178 ATMEL_SSC_TD | ATMEL_SSC_RD));
179 snapper9260_add_device_nand();
180 }
181
182 MACHINE_START(SNAPPER_9260, "Bluewater Systems Snapper 9260/9G20 module")
183 .init_time = at91_init_time,
184 .map_io = at91_map_io,
185 .handle_irq = at91_aic_handle_irq,
186 .init_early = snapper9260_init_early,
187 .init_irq = at91_init_irq_default,
188 .init_machine = snapper9260_board_init,
189 MACHINE_END
190
191
192