Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6
[pandora-kernel.git] / 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_init_early(void)
52 {
53         /* Initialize processor: 12.000 MHz crystal */
54         at91_initialize(12000000);
55
56         /* DBGU 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 /*
64  * USB Host port
65  */
66 static struct at91_usbh_data __initdata ek_usbh_data = {
67         .ports          = 2,
68 };
69
70 /*
71  * USB Device port
72  */
73 static struct at91_udc_data __initdata ek_udc_data = {
74         .vbus_pin       = AT91_PIN_PC5,
75         .pullup_pin     = 0,            /* pull-up driven by UDC */
76 };
77
78 /*
79  * MACB Ethernet device
80  */
81 static struct at91_eth_data __initdata ek_macb_data = {
82         .phy_irq_pin    = AT91_PIN_PA31,
83         .is_rmii        = 1,
84 };
85
86 /*
87  * NAND flash
88  */
89 static struct mtd_partition __initdata ek_nand_partition[] = {
90         {
91                 .name   = "Uboot & Kernel",
92                 .offset = 0,
93                 .size   = SZ_16M,
94         },
95         {
96                 .name   = "Root FS",
97                 .offset = MTDPART_OFS_NXTBLK,
98                 .size   = 120 * SZ_1M,
99         },
100         {
101                 .name   = "FS",
102                 .offset = MTDPART_OFS_NXTBLK,
103                 .size   = 120 * SZ_1M,
104         }
105 };
106
107 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
108 {
109         *num_partitions = ARRAY_SIZE(ek_nand_partition);
110         return ek_nand_partition;
111 }
112
113 static struct atmel_nand_data __initdata ek_nand_data = {
114         .ale            = 21,
115         .cle            = 22,
116 //      .det_pin        = ... not connected
117         .rdy_pin        = AT91_PIN_PC13,
118         .enable_pin     = AT91_PIN_PC14,
119         .partition_info = nand_partitions,
120 };
121
122 static struct sam9_smc_config __initdata ek_nand_smc_config = {
123         .ncs_read_setup         = 0,
124         .nrd_setup              = 1,
125         .ncs_write_setup        = 0,
126         .nwe_setup              = 1,
127
128         .ncs_read_pulse         = 3,
129         .nrd_pulse              = 3,
130         .ncs_write_pulse        = 3,
131         .nwe_pulse              = 3,
132
133         .read_cycle             = 5,
134         .write_cycle            = 5,
135
136         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
137         .tdf_cycles             = 2,
138 };
139
140 static void __init ek_add_device_nand(void)
141 {
142         /* configure chip-select 3 (NAND) */
143         sam9_smc_configure(3, &ek_nand_smc_config);
144
145         at91_add_device_nand(&ek_nand_data);
146 }
147
148 /*
149  * GPIO Buttons
150  */
151
152 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
153 static struct gpio_keys_button ek_buttons[] = {
154         {       /* USER PUSH BUTTON */
155                 .code           = KEY_ENTER,
156                 .gpio           = AT91_PIN_PB10,
157                 .active_low     = 1,
158                 .desc           = "user_pb",
159                 .wakeup         = 1,
160         }
161 };
162
163 static struct gpio_keys_platform_data ek_button_data = {
164         .buttons        = ek_buttons,
165         .nbuttons       = ARRAY_SIZE(ek_buttons),
166 };
167
168 static struct platform_device ek_button_device = {
169         .name           = "gpio-keys",
170         .id             = -1,
171         .num_resources  = 0,
172         .dev            = {
173                 .platform_data  = &ek_button_data,
174         }
175 };
176
177 static void __init ek_add_device_buttons(void)
178 {
179         at91_set_GPIO_periph(AT91_PIN_PB10, 1); /* user push button, pull up enabled */
180         at91_set_deglitch(AT91_PIN_PB10, 1);
181
182         platform_device_register(&ek_button_device);
183 }
184 #else
185 static void __init ek_add_device_buttons(void) {}
186 #endif
187
188 /*
189  * LEDs
190  */
191 static struct gpio_led ek_leds[] = {
192         {       /* user_led (green) */
193                 .name                   = "user_led",
194                 .gpio                   = AT91_PIN_PB21,
195                 .active_low             = 0,
196                 .default_trigger        = "heartbeat",
197         }
198 };
199
200 static void __init ek_board_init(void)
201 {
202         /* Serial */
203         at91_add_device_serial();
204         /* USB Host */
205         at91_add_device_usbh(&ek_usbh_data);
206         /* USB Device */
207         at91_add_device_udc(&ek_udc_data);
208         /* NAND */
209         ek_add_device_nand();
210         /* I2C */
211         at91_add_device_i2c(NULL, 0);
212         /* Ethernet */
213         at91_add_device_eth(&ek_macb_data);
214         /* Push Buttons */
215         ek_add_device_buttons();
216         /* LEDs */
217         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
218         /* shutdown controller, wakeup button (5 msec low) */
219         at91_sys_write(AT91_SHDW_MR, AT91_SHDW_CPTWK0_(10) | AT91_SHDW_WKMODE0_LOW
220                                 | AT91_SHDW_RTTWKEN);
221 }
222
223 MACHINE_START(USB_A9260, "CALAO USB_A9260")
224         /* Maintainer: calao-systems */
225         .timer          = &at91sam926x_timer,
226         .map_io         = at91_map_io,
227         .init_early     = ek_init_early,
228         .init_irq       = at91_init_irq_default,
229         .init_machine   = ek_board_init,
230 MACHINE_END