Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm
[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 serial ports and console */
64         at91_init_serial(&ek_uart_config);
65 }
66
67 static void __init ek_init_irq(void)
68 {
69         at91sam9261_init_interrupts(NULL);
70 }
71
72
73 /*
74  * DM9000 ethernet device
75  */
76 #if defined(CONFIG_DM9000)
77 static struct resource at91sam9261_dm9000_resource[] = {
78         [0] = {
79                 .start  = AT91_CHIPSELECT_2,
80                 .end    = AT91_CHIPSELECT_2 + 3,
81                 .flags  = IORESOURCE_MEM
82         },
83         [1] = {
84                 .start  = AT91_CHIPSELECT_2 + 0x44,
85                 .end    = AT91_CHIPSELECT_2 + 0xFF,
86                 .flags  = IORESOURCE_MEM
87         },
88         [2] = {
89                 .start  = AT91_PIN_PC11,
90                 .end    = AT91_PIN_PC11,
91                 .flags  = IORESOURCE_IRQ
92         }
93 };
94
95 static struct dm9000_plat_data dm9000_platdata = {
96         .flags          = DM9000_PLATF_16BITONLY,
97 };
98
99 static struct platform_device at91sam9261_dm9000_device = {
100         .name           = "dm9000",
101         .id             = 0,
102         .num_resources  = ARRAY_SIZE(at91sam9261_dm9000_resource),
103         .resource       = at91sam9261_dm9000_resource,
104         .dev            = {
105                 .platform_data  = &dm9000_platdata,
106         }
107 };
108
109 static void __init ek_add_device_dm9000(void)
110 {
111         /*
112          * Configure Chip-Select 2 on SMC for the DM9000.
113          * Note: These timings were calculated for MASTER_CLOCK = 100000000
114          *  according to the DM9000 timings.
115          */
116         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));
117         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));
118         at91_sys_write(AT91_SMC_CYCLE(2), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
119         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));
120
121         /* Configure Reset signal as output */
122         at91_set_gpio_output(AT91_PIN_PC10, 0);
123
124         /* Configure Interrupt pin as input, no pull-up */
125         at91_set_gpio_input(AT91_PIN_PC11, 0);
126
127         platform_device_register(&at91sam9261_dm9000_device);
128 }
129 #else
130 static void __init ek_add_device_dm9000(void) {}
131 #endif /* CONFIG_DM9000 */
132
133
134 /*
135  * USB Host Port
136  */
137 static struct at91_usbh_data __initdata ek_usbh_data = {
138         .ports          = 2,
139 };
140
141
142 /*
143  * USB Device Port
144  */
145 static struct at91_udc_data __initdata ek_udc_data = {
146         .vbus_pin       = AT91_PIN_PB29,
147         .pullup_pin     = 0,            /* pull-up driven by UDC */
148 };
149
150
151 /*
152  * MCI (SD/MMC)
153  */
154 static struct at91_mmc_data __initdata ek_mmc_data = {
155         .wire4          = 1,
156 //      .det_pin        = ... not connected
157 //      .wp_pin         = ... not connected
158 //      .vcc_pin        = ... not connected
159 };
160
161
162 /*
163  * NAND flash
164  */
165 static struct mtd_partition __initdata ek_nand_partition[] = {
166         {
167                 .name   = "Partition 1",
168                 .offset = 0,
169                 .size   = 256 * 1024,
170         },
171         {
172                 .name   = "Partition 2",
173                 .offset = 256 * 1024 ,
174                 .size   = MTDPART_SIZ_FULL,
175         },
176 };
177
178 static struct mtd_partition *nand_partitions(int size, int *num_partitions)
179 {
180         *num_partitions = ARRAY_SIZE(ek_nand_partition);
181         return ek_nand_partition;
182 }
183
184 static struct at91_nand_data __initdata ek_nand_data = {
185         .ale            = 22,
186         .cle            = 21,
187 //      .det_pin        = ... not connected
188         .rdy_pin        = AT91_PIN_PC15,
189         .enable_pin     = AT91_PIN_PC14,
190         .partition_info = nand_partitions,
191 #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
192         .bus_width_16   = 1,
193 #else
194         .bus_width_16   = 0,
195 #endif
196 };
197
198 /*
199  * ADS7846 Touchscreen
200  */
201 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
202
203 static int ads7843_pendown_state(void)
204 {
205         return !at91_get_gpio_value(AT91_PIN_PC2);      /* Touchscreen PENIRQ */
206 }
207
208 static struct ads7846_platform_data ads_info = {
209         .model                  = 7843,
210         .x_min                  = 150,
211         .x_max                  = 3830,
212         .y_min                  = 190,
213         .y_max                  = 3830,
214         .vref_delay_usecs       = 100,
215         .x_plate_ohms           = 450,
216         .y_plate_ohms           = 250,
217         .pressure_max           = 15000,
218         .debounce_max           = 1,
219         .debounce_rep           = 0,
220         .debounce_tol           = (~0),
221         .get_pendown_state      = ads7843_pendown_state,
222 };
223
224 static void __init ek_add_device_ts(void)
225 {
226         at91_set_B_periph(AT91_PIN_PC2, 1);     /* External IRQ0, with pullup */
227         at91_set_gpio_input(AT91_PIN_PA11, 1);  /* Touchscreen BUSY signal */
228 }
229 #else
230 static void __init ek_add_device_ts(void) {}
231 #endif
232
233 /*
234  * SPI devices
235  */
236 static struct spi_board_info ek_spi_devices[] = {
237         {       /* DataFlash chip */
238                 .modalias       = "mtd_dataflash",
239                 .chip_select    = 0,
240                 .max_speed_hz   = 15 * 1000 * 1000,
241                 .bus_num        = 0,
242         },
243 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
244         {
245                 .modalias       = "ads7846",
246                 .chip_select    = 2,
247                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
248                 .bus_num        = 0,
249                 .platform_data  = &ads_info,
250                 .irq            = AT91SAM9261_ID_IRQ0,
251         },
252 #endif
253 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
254         {       /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
255                 .modalias       = "mtd_dataflash",
256                 .chip_select    = 3,
257                 .max_speed_hz   = 15 * 1000 * 1000,
258                 .bus_num        = 0,
259         },
260 #elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
261         {       /* AT73C213 DAC */
262                 .modalias       = "at73c213",
263                 .chip_select    = 3,
264                 .max_speed_hz   = 10 * 1000 * 1000,
265                 .bus_num        = 0,
266         },
267 #endif
268 };
269
270
271 static void __init ek_board_init(void)
272 {
273         /* Serial */
274         at91_add_device_serial();
275         /* USB Host */
276         at91_add_device_usbh(&ek_usbh_data);
277         /* USB Device */
278         at91_add_device_udc(&ek_udc_data);
279         /* I2C */
280         at91_add_device_i2c();
281         /* NAND */
282         at91_add_device_nand(&ek_nand_data);
283         /* DM9000 ethernet */
284         ek_add_device_dm9000();
285
286         /* spi0 and mmc/sd share the same PIO pins */
287 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
288         /* SPI */
289         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
290         /* Touchscreen */
291         ek_add_device_ts();
292 #else
293         /* MMC */
294         at91_add_device_mmc(0, &ek_mmc_data);
295 #endif
296 }
297
298 MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
299         /* Maintainer: Atmel */
300         .phys_io        = AT91_BASE_SYS,
301         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
302         .boot_params    = AT91_SDRAM_BASE + 0x100,
303         .timer          = &at91sam926x_timer,
304         .map_io         = ek_map_io,
305         .init_irq       = ek_init_irq,
306         .init_machine   = ek_board_init,
307 MACHINE_END