Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
[linux-2.6] / arch / arm / mach-at91 / board-usb-a9260.c
1 /*
2  * linux/arch/arm/mach-at91/board-usb-a9260.c
3  *
4  *  Copyright (C) 2005 SAN People
5  *  Copyright (C) 2006 Atmel
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 #include <linux/clk.h>
32
33 #include <asm/setup.h>
34 #include <asm/mach-types.h>
35 #include <asm/irq.h>
36
37 #include <asm/mach/arch.h>
38 #include <asm/mach/map.h>
39 #include <asm/mach/irq.h>
40
41 #include <mach/hardware.h>
42 #include <mach/board.h>
43 #include <mach/gpio.h>
44 #include <mach/at91sam9_smc.h>
45 #include <mach/at91_shdwc.h>
46
47 #include "sam9_smc.h"
48 #include "generic.h"
49
50
51 static void __init ek_map_io(void)
52 {
53         /* Initialize processor: 12.000 MHz crystal */
54         at91sam9260_initialize(12000000);
55
56         /* DGBU on ttyS0. (Rx & Tx only) */
57         at91_register_uart(0, 0, 0);
58
59         /* set serial console to ttyS0 (ie, DBGU) */
60         at91_set_serial_console(0);
61 }
62
63 static void __init ek_init_irq(void)
64 {
65         at91sam9260_init_interrupts(NULL);
66 }
67
68
69 /*
70  * USB Host port
71  */
72 static struct at91_usbh_data __initdata ek_usbh_data = {
73         .ports          = 2,
74 };
75
76 /*
77  * USB Device port
78  */
79 static struct at91_udc_data __initdata ek_udc_data = {
80         .vbus_pin       = AT91_PIN_PC5,
81         .pullup_pin     = 0,            /* pull-up driven by UDC */
82 };
83
84 /*
85  * MACB Ethernet device
86  */
87 static struct at91_eth_data __initdata ek_macb_data = {
88         .phy_irq_pin    = AT91_PIN_PA31,
89         .is_rmii        = 1,
90 };
91
92 /*
93  * NAND flash
94  */
95 static struct mtd_partition __initdata ek_nand_partition[] = {
96         {
97                 .name   = "Uboot & Kernel",
98                 .offset = 0,
99                 .size   = SZ_16M,
100         },
101         {
102                 .name   = "Root FS",
103                 .offset = MTDPART_OFS_NXTBLK,
104                 .size   = 120 * SZ_1M,
105         },
106         {
107                 .name   = "FS",
108                 .offset = MTDPART_OFS_NXTBLK,
109                 .size   = 120 * SZ_1M,
110         }
111 };
112
113 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
114 {
115         *num_partitions = ARRAY_SIZE(ek_nand_partition);
116         return ek_nand_partition;
117 }
118
119 static struct atmel_nand_data __initdata ek_nand_data = {
120         .ale            = 21,
121         .cle            = 22,
122 //      .det_pin        = ... not connected
123         .rdy_pin        = AT91_PIN_PC13,
124         .enable_pin     = AT91_PIN_PC14,
125         .partition_info = nand_partitions,
126 };
127
128 static struct sam9_smc_config __initdata ek_nand_smc_config = {
129         .ncs_read_setup         = 0,
130         .nrd_setup              = 1,
131         .ncs_write_setup        = 0,
132         .nwe_setup              = 1,
133
134         .ncs_read_pulse         = 3,
135         .nrd_pulse              = 3,
136         .ncs_write_pulse        = 3,
137         .nwe_pulse              = 3,
138
139         .read_cycle             = 5,
140         .write_cycle            = 5,
141
142         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
143         .tdf_cycles             = 2,
144 };
145
146 static void __init ek_add_device_nand(void)
147 {
148         /* configure chip-select 3 (NAND) */
149         sam9_smc_configure(3, &ek_nand_smc_config);
150
151         at91_add_device_nand(&ek_nand_data);
152 }
153
154 /*
155  * GPIO Buttons
156  */
157
158 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
159 static struct gpio_keys_button ek_buttons[] = {
160         {       /* USER PUSH BUTTON */
161                 .code           = KEY_ENTER,
162                 .gpio           = AT91_PIN_PB10,
163                 .active_low     = 1,
164                 .desc           = "user_pb",
165                 .wakeup         = 1,
166         }
167 };
168
169 static struct gpio_keys_platform_data ek_button_data = {
170         .buttons        = ek_buttons,
171         .nbuttons       = ARRAY_SIZE(ek_buttons),
172 };
173
174 static struct platform_device ek_button_device = {
175         .name           = "gpio-keys",
176         .id             = -1,
177         .num_resources  = 0,
178         .dev            = {
179                 .platform_data  = &ek_button_data,
180         }
181 };
182
183 static void __init ek_add_device_buttons(void)
184 {
185         at91_set_GPIO_periph(AT91_PIN_PB10, 1); /* user push button, pull up enabled */
186         at91_set_deglitch(AT91_PIN_PB10, 1);
187
188         platform_device_register(&ek_button_device);
189 }
190 #else
191 static void __init ek_add_device_buttons(void) {}
192 #endif
193
194 /*
195  * LEDs
196  */
197 static struct gpio_led ek_leds[] = {
198         {       /* user_led (green) */
199                 .name                   = "user_led",
200                 .gpio                   = AT91_PIN_PB21,
201                 .active_low             = 0,
202                 .default_trigger        = "heartbeat",
203         }
204 };
205
206 static void __init ek_board_init(void)
207 {
208         /* Serial */
209         at91_add_device_serial();
210         /* USB Host */
211         at91_add_device_usbh(&ek_usbh_data);
212         /* USB Device */
213         at91_add_device_udc(&ek_udc_data);
214         /* NAND */
215         ek_add_device_nand();
216         /* I2C */
217         at91_add_device_i2c(NULL, 0);
218         /* Ethernet */
219         at91_add_device_eth(&ek_macb_data);
220         /* Push Buttons */
221         ek_add_device_buttons();
222         /* LEDs */
223         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
224         /* shutdown controller, wakeup button (5 msec low) */
225         at91_sys_write(AT91_SHDW_MR, AT91_SHDW_CPTWK0_(10) | AT91_SHDW_WKMODE0_LOW
226                                 | AT91_SHDW_RTTWKEN);
227 }
228
229 MACHINE_START(USB_A9260, "CALAO USB_A9260")
230         /* Maintainer: calao-systems */
231         .phys_io        = AT91_BASE_SYS,
232         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
233         .boot_params    = AT91_SDRAM_BASE + 0x100,
234         .timer          = &at91sam926x_timer,
235         .map_io         = ek_map_io,
236         .init_irq       = ek_init_irq,
237         .init_machine   = ek_board_init,
238 MACHINE_END