Merge branch 'mac80211' of git://git.kernel.org/pub/scm/linux/kernel/git/linville...
[linux-2.6] / arch / arm / mach-at91 / board-sam9261ek.c
1 /*
2  * linux/arch/arm/mach-at91/board-sam9261ek.c
3  *
4  *  Copyright (C) 2005 SAN People
5  *  Copyright (C) 2006 Atmel
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
20  */
21
22 #include <linux/types.h>
23 #include <linux/init.h>
24 #include <linux/mm.h>
25 #include <linux/module.h>
26 #include <linux/platform_device.h>
27 #include <linux/spi/spi.h>
28 #include <linux/spi/ads7846.h>
29 #include <linux/dm9000.h>
30
31 #include <asm/hardware.h>
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 <asm/arch/board.h>
41 #include <asm/arch/gpio.h>
42 #include <asm/arch/at91sam926x_mc.h>
43
44 #include "generic.h"
45
46
47 /*
48  * Serial port configuration.
49  *    0 .. 2 = USART0 .. USART2
50  *    3      = DBGU
51  */
52 static struct at91_uart_config __initdata ek_uart_config = {
53         .console_tty    = 0,                            /* ttyS0 */
54         .nr_tty         = 1,
55         .tty_map        = { 3, -1, -1, -1 }             /* ttyS0, ..., ttyS3 */
56 };
57
58 static void __init ek_map_io(void)
59 {
60         /* Initialize processor: 18.432 MHz crystal */
61         at91sam9261_initialize(18432000);
62
63         /* Setup the LEDs */
64         at91_init_leds(AT91_PIN_PA13, AT91_PIN_PA14);
65
66         /* Setup the serial ports and console */
67         at91_init_serial(&ek_uart_config);
68 }
69
70 static void __init ek_init_irq(void)
71 {
72         at91sam9261_init_interrupts(NULL);
73 }
74
75
76 /*
77  * DM9000 ethernet device
78  */
79 #if defined(CONFIG_DM9000)
80 static struct resource at91sam9261_dm9000_resource[] = {
81         [0] = {
82                 .start  = AT91_CHIPSELECT_2,
83                 .end    = AT91_CHIPSELECT_2 + 3,
84                 .flags  = IORESOURCE_MEM
85         },
86         [1] = {
87                 .start  = AT91_CHIPSELECT_2 + 0x44,
88                 .end    = AT91_CHIPSELECT_2 + 0xFF,
89                 .flags  = IORESOURCE_MEM
90         },
91         [2] = {
92                 .start  = AT91_PIN_PC11,
93                 .end    = AT91_PIN_PC11,
94                 .flags  = IORESOURCE_IRQ
95         }
96 };
97
98 static struct dm9000_plat_data dm9000_platdata = {
99         .flags          = DM9000_PLATF_16BITONLY,
100 };
101
102 static struct platform_device at91sam9261_dm9000_device = {
103         .name           = "dm9000",
104         .id             = 0,
105         .num_resources  = ARRAY_SIZE(at91sam9261_dm9000_resource),
106         .resource       = at91sam9261_dm9000_resource,
107         .dev            = {
108                 .platform_data  = &dm9000_platdata,
109         }
110 };
111
112 static void __init ek_add_device_dm9000(void)
113 {
114         /*
115          * Configure Chip-Select 2 on SMC for the DM9000.
116          * Note: These timings were calculated for MASTER_CLOCK = 100000000
117          *  according to the DM9000 timings.
118          */
119         at91_sys_write(AT91_SMC_SETUP(2), AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(0) | AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(0));
120         at91_sys_write(AT91_SMC_PULSE(2), AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(8) | AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(8));
121         at91_sys_write(AT91_SMC_CYCLE(2), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
122         at91_sys_write(AT91_SMC_MODE(2), AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16 | AT91_SMC_TDF_(1));
123
124         /* Configure Reset signal as output */
125         at91_set_gpio_output(AT91_PIN_PC10, 0);
126
127         /* Configure Interrupt pin as input, no pull-up */
128         at91_set_gpio_input(AT91_PIN_PC11, 0);
129
130         platform_device_register(&at91sam9261_dm9000_device);
131 }
132 #else
133 static void __init ek_add_device_dm9000(void) {}
134 #endif /* CONFIG_DM9000 */
135
136
137 /*
138  * USB Host Port
139  */
140 static struct at91_usbh_data __initdata ek_usbh_data = {
141         .ports          = 2,
142 };
143
144
145 /*
146  * USB Device Port
147  */
148 static struct at91_udc_data __initdata ek_udc_data = {
149         .vbus_pin       = AT91_PIN_PB29,
150         .pullup_pin     = 0,            /* pull-up driven by UDC */
151 };
152
153
154 /*
155  * MCI (SD/MMC)
156  */
157 static struct at91_mmc_data __initdata ek_mmc_data = {
158         .wire4          = 1,
159 //      .det_pin        = ... not connected
160 //      .wp_pin         = ... not connected
161 //      .vcc_pin        = ... not connected
162 };
163
164
165 /*
166  * NAND flash
167  */
168 static struct mtd_partition __initdata ek_nand_partition[] = {
169         {
170                 .name   = "Partition 1",
171                 .offset = 0,
172                 .size   = 256 * 1024,
173         },
174         {
175                 .name   = "Partition 2",
176                 .offset = 256 * 1024 ,
177                 .size   = MTDPART_SIZ_FULL,
178         },
179 };
180
181 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
182 {
183         *num_partitions = ARRAY_SIZE(ek_nand_partition);
184         return ek_nand_partition;
185 }
186
187 static struct at91_nand_data __initdata ek_nand_data = {
188         .ale            = 22,
189         .cle            = 21,
190 //      .det_pin        = ... not connected
191         .rdy_pin        = AT91_PIN_PC15,
192         .enable_pin     = AT91_PIN_PC14,
193         .partition_info = nand_partitions,
194 #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
195         .bus_width_16   = 1,
196 #else
197         .bus_width_16   = 0,
198 #endif
199 };
200
201 /*
202  * ADS7846 Touchscreen
203  */
204 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
205
206 static int ads7843_pendown_state(void)
207 {
208         return !at91_get_gpio_value(AT91_PIN_PC2);      /* Touchscreen PENIRQ */
209 }
210
211 static struct ads7846_platform_data ads_info = {
212         .model                  = 7843,
213         .x_min                  = 150,
214         .x_max                  = 3830,
215         .y_min                  = 190,
216         .y_max                  = 3830,
217         .vref_delay_usecs       = 100,
218         .x_plate_ohms           = 450,
219         .y_plate_ohms           = 250,
220         .pressure_max           = 15000,
221         .debounce_max           = 1,
222         .debounce_rep           = 0,
223         .debounce_tol           = (~0),
224         .get_pendown_state      = ads7843_pendown_state,
225 };
226
227 static void __init ek_add_device_ts(void)
228 {
229         at91_set_B_periph(AT91_PIN_PC2, 1);     /* External IRQ0, with pullup */
230         at91_set_gpio_input(AT91_PIN_PA11, 1);  /* Touchscreen BUSY signal */
231 }
232 #else
233 static void __init ek_add_device_ts(void) {}
234 #endif
235
236 /*
237  * SPI devices
238  */
239 static struct spi_board_info ek_spi_devices[] = {
240         {       /* DataFlash chip */
241                 .modalias       = "mtd_dataflash",
242                 .chip_select    = 0,
243                 .max_speed_hz   = 15 * 1000 * 1000,
244                 .bus_num        = 0,
245         },
246 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
247         {
248                 .modalias       = "ads7846",
249                 .chip_select    = 2,
250                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
251                 .bus_num        = 0,
252                 .platform_data  = &ads_info,
253                 .irq            = AT91SAM9261_ID_IRQ0,
254         },
255 #endif
256 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
257         {       /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
258                 .modalias       = "mtd_dataflash",
259                 .chip_select    = 3,
260                 .max_speed_hz   = 15 * 1000 * 1000,
261                 .bus_num        = 0,
262         },
263 #elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
264         {       /* AT73C213 DAC */
265                 .modalias       = "at73c213",
266                 .chip_select    = 3,
267                 .max_speed_hz   = 10 * 1000 * 1000,
268                 .bus_num        = 0,
269         },
270 #endif
271 };
272
273
274 static void __init ek_board_init(void)
275 {
276         /* Serial */
277         at91_add_device_serial();
278         /* USB Host */
279         at91_add_device_usbh(&ek_usbh_data);
280         /* USB Device */
281         at91_add_device_udc(&ek_udc_data);
282         /* I2C */
283         at91_add_device_i2c();
284         /* NAND */
285         at91_add_device_nand(&ek_nand_data);
286         /* DM9000 ethernet */
287         ek_add_device_dm9000();
288
289         /* spi0 and mmc/sd share the same PIO pins */
290 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
291         /* SPI */
292         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
293         /* Touchscreen */
294         ek_add_device_ts();
295 #else
296         /* MMC */
297         at91_add_device_mmc(0, &ek_mmc_data);
298 #endif
299 }
300
301 MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
302         /* Maintainer: Atmel */
303         .phys_io        = AT91_BASE_SYS,
304         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
305         .boot_params    = AT91_SDRAM_BASE + 0x100,
306         .timer          = &at91sam926x_timer,
307         .map_io         = ek_map_io,
308         .init_irq       = ek_init_irq,
309         .init_machine   = ek_board_init,
310 MACHINE_END