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
ek_map_io(void)50 static void __init ek_map_io(void)
51 {
52 /* Initialize processor: 12.00 MHz crystal */
53 at91sam9263_initialize(12000000);
54
55 /* DGBU 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
ek_init_irq(void)62 static void __init ek_init_irq(void)
63 {
64 at91sam9263_init_interrupts(NULL);
65 }
66
67
68 /*
69 * USB Host port
70 */
71 static struct at91_usbh_data __initdata ek_usbh_data = {
72 .ports = 2,
73 };
74
75 /*
76 * USB Device port
77 */
78 static 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 */
86 static 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 */
100 static 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 */
108 static 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
nand_partitions(int size,int * num_partitions)126 static 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
132 static 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
141 static 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
ek_add_device_nand(void)159 static 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)
172 static 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
182 static struct gpio_keys_platform_data ek_button_data = {
183 .buttons = ek_buttons,
184 .nbuttons = ARRAY_SIZE(ek_buttons),
185 };
186
187 static 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
ek_add_device_buttons(void)196 static 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
ek_add_device_buttons(void)204 static void __init ek_add_device_buttons(void) {}
205 #endif
206
207 /*
208 * LEDs
209 */
210 static 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
ek_board_init(void)220 static 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
245 MACHINE_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,
254 MACHINE_END
255