[ARM] 4646/1: AT91: configurable HZ, default to 128
[deliverable/linux.git] / arch / arm / mach-at91 / board-sam9263ek.c
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1/*
2 * linux/arch/arm/mach-at91/board-sam9263ek.c
3 *
4 * Copyright (C) 2005 SAN People
5 * Copyright (C) 2007 Atmel Corporation.
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>
7c73628f 28#include <linux/spi/ads7846.h>
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29#include <linux/fb.h>
30
31#include <video/atmel_lcdc.h>
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32
33#include <asm/hardware.h>
34#include <asm/setup.h>
35#include <asm/mach-types.h>
36#include <asm/irq.h>
37
38#include <asm/mach/arch.h>
39#include <asm/mach/map.h>
40#include <asm/mach/irq.h>
41
42#include <asm/arch/board.h>
43#include <asm/arch/gpio.h>
44#include <asm/arch/at91sam926x_mc.h>
45
46#include "generic.h"
47
48
49/*
50 * Serial port configuration.
51 * 0 .. 2 = USART0 .. USART2
52 * 3 = DBGU
53 */
54static struct at91_uart_config __initdata ek_uart_config = {
55 .console_tty = 0, /* ttyS0 */
56 .nr_tty = 2,
57 .tty_map = { 3, 0, -1, -1, } /* ttyS0, ..., ttyS3 */
58};
59
60static void __init ek_map_io(void)
61{
62 /* Initialize processor: 16.367 MHz crystal */
63 at91sam9263_initialize(16367660);
64
65 /* Setup the serial ports and console */
66 at91_init_serial(&ek_uart_config);
67}
68
69static void __init ek_init_irq(void)
70{
71 at91sam9263_init_interrupts(NULL);
72}
73
74
75/*
76 * USB Host port
77 */
78static struct at91_usbh_data __initdata ek_usbh_data = {
79 .ports = 2,
80 .vbus_pin = { AT91_PIN_PA24, AT91_PIN_PA21 },
81};
82
83/*
84 * USB Device port
85 */
86static struct at91_udc_data __initdata ek_udc_data = {
87 .vbus_pin = AT91_PIN_PA25,
88 .pullup_pin = 0, /* pull-up driven by UDC */
89};
90
91
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92/*
93 * ADS7846 Touchscreen
94 */
95#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
96static int ads7843_pendown_state(void)
97{
98 return !at91_get_gpio_value(AT91_PIN_PA15); /* Touchscreen PENIRQ */
99}
100
101static struct ads7846_platform_data ads_info = {
102 .model = 7843,
103 .x_min = 150,
104 .x_max = 3830,
105 .y_min = 190,
106 .y_max = 3830,
107 .vref_delay_usecs = 100,
108 .x_plate_ohms = 450,
109 .y_plate_ohms = 250,
110 .pressure_max = 15000,
111 .debounce_max = 1,
112 .debounce_rep = 0,
113 .debounce_tol = (~0),
114 .get_pendown_state = ads7843_pendown_state,
115};
116
117static void __init ek_add_device_ts(void)
118{
119 at91_set_B_periph(AT91_PIN_PA15, 1); /* External IRQ1, with pullup */
120 at91_set_gpio_input(AT91_PIN_PA31, 1); /* Touchscreen BUSY signal */
121}
122#else
123static void __init ek_add_device_ts(void) {}
124#endif
125
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126/*
127 * SPI devices.
128 */
129static struct spi_board_info ek_spi_devices[] = {
130#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
131 { /* DataFlash card */
132 .modalias = "mtd_dataflash",
133 .chip_select = 0,
134 .max_speed_hz = 15 * 1000 * 1000,
135 .bus_num = 0,
136 },
137#endif
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138#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
139 {
140 .modalias = "ads7846",
141 .chip_select = 3,
142 .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */
143 .bus_num = 0,
144 .platform_data = &ads_info,
145 .irq = AT91SAM9263_ID_IRQ1,
146 },
147#endif
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148};
149
150
151/*
152 * MCI (SD/MMC)
153 */
154static struct at91_mmc_data __initdata ek_mmc_data = {
155 .wire4 = 1,
156 .det_pin = AT91_PIN_PE18,
157 .wp_pin = AT91_PIN_PE19,
158// .vcc_pin = ... not connected
159};
160
161
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162/*
163 * MACB Ethernet device
164 */
165static struct at91_eth_data __initdata ek_macb_data = {
166 .is_rmii = 1,
167};
168
169
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170/*
171 * NAND flash
172 */
173static struct mtd_partition __initdata ek_nand_partition[] = {
174 {
175 .name = "Partition 1",
176 .offset = 0,
177 .size = 64 * 1024 * 1024,
178 },
179 {
180 .name = "Partition 2",
181 .offset = 64 * 1024 * 1024,
182 .size = MTDPART_SIZ_FULL,
183 },
184};
185
cdea4606 186static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
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187{
188 *num_partitions = ARRAY_SIZE(ek_nand_partition);
189 return ek_nand_partition;
190}
191
192static struct at91_nand_data __initdata ek_nand_data = {
193 .ale = 21,
194 .cle = 22,
195// .det_pin = ... not connected
196 .rdy_pin = AT91_PIN_PA22,
197 .enable_pin = AT91_PIN_PD15,
198 .partition_info = nand_partitions,
199#if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
200 .bus_width_16 = 1,
201#else
202 .bus_width_16 = 0,
203#endif
204};
205
206
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207/*
208 * LCD Controller
209 */
210#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
211static struct fb_videomode at91_tft_vga_modes[] = {
212 {
213 .name = "TX09D50VM1CCA @ 60",
214 .refresh = 60,
215 .xres = 240, .yres = 320,
216 .pixclock = KHZ2PICOS(4965),
217
218 .left_margin = 1, .right_margin = 33,
219 .upper_margin = 1, .lower_margin = 0,
220 .hsync_len = 5, .vsync_len = 1,
221
222 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
223 .vmode = FB_VMODE_NONINTERLACED,
224 },
225};
226
227static struct fb_monspecs at91fb_default_monspecs = {
228 .manufacturer = "HIT",
229 .monitor = "TX09D70VM1CCA",
230
231 .modedb = at91_tft_vga_modes,
232 .modedb_len = ARRAY_SIZE(at91_tft_vga_modes),
233 .hfmin = 15000,
234 .hfmax = 64000,
235 .vfmin = 50,
236 .vfmax = 150,
237};
238
239#define AT91SAM9263_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
240 | ATMEL_LCDC_DISTYPE_TFT \
241 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
242
243static void at91_lcdc_power_control(int on)
244{
245 if (on)
246 at91_set_gpio_value(AT91_PIN_PD12, 0); /* power up */
247 else
248 at91_set_gpio_value(AT91_PIN_PD12, 1); /* power down */
249}
250
251/* Driver datas */
252static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
253 .default_bpp = 16,
254 .default_dmacon = ATMEL_LCDC_DMAEN,
255 .default_lcdcon2 = AT91SAM9263_DEFAULT_LCDCON2,
256 .default_monspecs = &at91fb_default_monspecs,
257 .atmel_lcdfb_power_control = at91_lcdc_power_control,
258 .guard_time = 1,
259};
260
261#else
262static struct atmel_lcdfb_info __initdata ek_lcdc_data;
263#endif
264
265
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266/*
267 * AC97
268 */
269static struct atmel_ac97_data ek_ac97_data = {
270 .reset_pin = AT91_PIN_PA13,
271};
272
273
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274static 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 /* SPI */
7c73628f 283 at91_set_gpio_output(AT91_PIN_PE20, 1); /* select spi0 clock */
e6d92e63 284 at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
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285 /* Touchscreen */
286 ek_add_device_ts();
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287 /* MMC */
288 at91_add_device_mmc(1, &ek_mmc_data);
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289 /* Ethernet */
290 at91_add_device_eth(&ek_macb_data);
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291 /* NAND */
292 at91_add_device_nand(&ek_nand_data);
93afa752 293 /* I2C */
f230d3f5 294 at91_add_device_i2c(NULL, 0);
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295 /* LCD Controller */
296 at91_add_device_lcdc(&ek_lcdc_data);
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297 /* AC97 */
298 at91_add_device_ac97(&ek_ac97_data);
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299}
300
301MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-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,
310MACHINE_END
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