1 /*
2 * Copyright (C) 2005 SAN People
3 * Copyright (C) 2007 Atmel Corporation
4 *
5 * This file is subject to the terms and conditions of the GNU General Public
6 * License. See the file COPYING in the main directory of this archive for
7 * more details.
8 */
9
10 #include <linux/types.h>
11 #include <linux/gpio.h>
12 #include <linux/init.h>
13 #include <linux/mm.h>
14 #include <linux/module.h>
15 #include <linux/platform_device.h>
16 #include <linux/spi/spi.h>
17 #include <linux/fb.h>
18 #include <linux/clk.h>
19 #include <linux/input.h>
20 #include <linux/gpio_keys.h>
21
22 #include <video/atmel_lcdc.h>
23
24 #include <asm/setup.h>
25 #include <asm/mach-types.h>
26 #include <asm/irq.h>
27
28 #include <asm/mach/arch.h>
29 #include <asm/mach/map.h>
30 #include <asm/mach/irq.h>
31
32 #include <mach/hardware.h>
33 #include <mach/board.h>
34 #include <mach/at91sam9_smc.h>
35 #include <mach/at91_shdwc.h>
36
37 #include "sam9_smc.h"
38 #include "generic.h"
39
40
ek_init_early(void)41 static void __init ek_init_early(void)
42 {
43 /* Initialize processor: 12.000 MHz crystal */
44 at91_initialize(12000000);
45
46 /* DBGU on ttyS0. (Rx & Tx only) */
47 at91_register_uart(0, 0, 0);
48
49 /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
50 at91_register_uart(AT91SAM9RL_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
51
52 /* set serial console to ttyS0 (ie, DBGU) */
53 at91_set_serial_console(0);
54 }
55
56 /*
57 * USB HS Device port
58 */
59 static struct usba_platform_data __initdata ek_usba_udc_data = {
60 .vbus_pin = AT91_PIN_PA8,
61 };
62
63
64 /*
65 * MCI (SD/MMC)
66 */
67 static struct at91_mmc_data __initdata ek_mmc_data = {
68 .wire4 = 1,
69 .det_pin = AT91_PIN_PA15,
70 .wp_pin = -EINVAL,
71 .vcc_pin = -EINVAL,
72 };
73
74
75 /*
76 * NAND flash
77 */
78 static struct mtd_partition __initdata ek_nand_partition[] = {
79 {
80 .name = "Partition 1",
81 .offset = 0,
82 .size = SZ_256K,
83 },
84 {
85 .name = "Partition 2",
86 .offset = MTDPART_OFS_NXTBLK,
87 .size = MTDPART_SIZ_FULL,
88 },
89 };
90
91 static struct atmel_nand_data __initdata ek_nand_data = {
92 .ale = 21,
93 .cle = 22,
94 .det_pin = -EINVAL,
95 .rdy_pin = AT91_PIN_PD17,
96 .enable_pin = AT91_PIN_PB6,
97 .parts = ek_nand_partition,
98 .num_parts = ARRAY_SIZE(ek_nand_partition),
99 };
100
101 static struct sam9_smc_config __initdata ek_nand_smc_config = {
102 .ncs_read_setup = 0,
103 .nrd_setup = 1,
104 .ncs_write_setup = 0,
105 .nwe_setup = 1,
106
107 .ncs_read_pulse = 3,
108 .nrd_pulse = 3,
109 .ncs_write_pulse = 3,
110 .nwe_pulse = 3,
111
112 .read_cycle = 5,
113 .write_cycle = 5,
114
115 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
116 .tdf_cycles = 2,
117 };
118
ek_add_device_nand(void)119 static void __init ek_add_device_nand(void)
120 {
121 /* configure chip-select 3 (NAND) */
122 sam9_smc_configure(0, 3, &ek_nand_smc_config);
123
124 at91_add_device_nand(&ek_nand_data);
125 }
126
127
128 /*
129 * SPI devices
130 */
131 static struct spi_board_info ek_spi_devices[] = {
132 { /* DataFlash chip */
133 .modalias = "mtd_dataflash",
134 .chip_select = 0,
135 .max_speed_hz = 15 * 1000 * 1000,
136 .bus_num = 0,
137 },
138 };
139
140
141 /*
142 * LCD Controller
143 */
144 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
145 static struct fb_videomode at91_tft_vga_modes[] = {
146 {
147 .name = "TX09D50VM1CCA @ 60",
148 .refresh = 60,
149 .xres = 240, .yres = 320,
150 .pixclock = KHZ2PICOS(4965),
151
152 .left_margin = 1, .right_margin = 33,
153 .upper_margin = 1, .lower_margin = 0,
154 .hsync_len = 5, .vsync_len = 1,
155
156 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
157 .vmode = FB_VMODE_NONINTERLACED,
158 },
159 };
160
161 static struct fb_monspecs at91fb_default_monspecs = {
162 .manufacturer = "HIT",
163 .monitor = "TX09D50VM1CCA",
164
165 .modedb = at91_tft_vga_modes,
166 .modedb_len = ARRAY_SIZE(at91_tft_vga_modes),
167 .hfmin = 15000,
168 .hfmax = 64000,
169 .vfmin = 50,
170 .vfmax = 150,
171 };
172
173 #define AT91SAM9RL_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
174 | ATMEL_LCDC_DISTYPE_TFT \
175 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
176
at91_lcdc_power_control(int on)177 static void at91_lcdc_power_control(int on)
178 {
179 if (on)
180 at91_set_gpio_value(AT91_PIN_PC1, 0); /* power up */
181 else
182 at91_set_gpio_value(AT91_PIN_PC1, 1); /* power down */
183 }
184
185 /* Driver datas */
186 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
187 .lcdcon_is_backlight = true,
188 .default_bpp = 16,
189 .default_dmacon = ATMEL_LCDC_DMAEN,
190 .default_lcdcon2 = AT91SAM9RL_DEFAULT_LCDCON2,
191 .default_monspecs = &at91fb_default_monspecs,
192 .atmel_lcdfb_power_control = at91_lcdc_power_control,
193 .guard_time = 1,
194 .lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB,
195 };
196
197 #else
198 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
199 #endif
200
201
202 /*
203 * AC97
204 * reset_pin is not connected: NRST
205 */
206 static struct ac97c_platform_data ek_ac97_data = {
207 .reset_pin = -EINVAL,
208 };
209
210
211 /*
212 * LEDs
213 */
214 static struct gpio_led ek_leds[] = {
215 { /* "bottom" led, green, userled1 to be defined */
216 .name = "ds1",
217 .gpio = AT91_PIN_PD15,
218 .active_low = 1,
219 .default_trigger = "none",
220 },
221 { /* "bottom" led, green, userled2 to be defined */
222 .name = "ds2",
223 .gpio = AT91_PIN_PD16,
224 .active_low = 1,
225 .default_trigger = "none",
226 },
227 { /* "power" led, yellow */
228 .name = "ds3",
229 .gpio = AT91_PIN_PD14,
230 .default_trigger = "heartbeat",
231 }
232 };
233
234
235 /*
236 * Touchscreen
237 */
238 static struct at91_tsadcc_data ek_tsadcc_data = {
239 .adc_clock = 1000000,
240 .pendet_debounce = 0x0f,
241 .ts_sample_hold_time = 0x03,
242 };
243
244
245 /*
246 * GPIO Buttons
247 */
248 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
249 static struct gpio_keys_button ek_buttons[] = {
250 {
251 .gpio = AT91_PIN_PB0,
252 .code = BTN_2,
253 .desc = "Right Click",
254 .active_low = 1,
255 .wakeup = 1,
256 },
257 {
258 .gpio = AT91_PIN_PB1,
259 .code = BTN_1,
260 .desc = "Left Click",
261 .active_low = 1,
262 .wakeup = 1,
263 }
264 };
265
266 static struct gpio_keys_platform_data ek_button_data = {
267 .buttons = ek_buttons,
268 .nbuttons = ARRAY_SIZE(ek_buttons),
269 };
270
271 static struct platform_device ek_button_device = {
272 .name = "gpio-keys",
273 .id = -1,
274 .num_resources = 0,
275 .dev = {
276 .platform_data = &ek_button_data,
277 }
278 };
279
ek_add_device_buttons(void)280 static void __init ek_add_device_buttons(void)
281 {
282 at91_set_gpio_input(AT91_PIN_PB1, 1); /* btn1 */
283 at91_set_deglitch(AT91_PIN_PB1, 1);
284 at91_set_gpio_input(AT91_PIN_PB0, 1); /* btn2 */
285 at91_set_deglitch(AT91_PIN_PB0, 1);
286
287 platform_device_register(&ek_button_device);
288 }
289 #else
ek_add_device_buttons(void)290 static void __init ek_add_device_buttons(void) {}
291 #endif
292
293
ek_board_init(void)294 static void __init ek_board_init(void)
295 {
296 /* Serial */
297 at91_add_device_serial();
298 /* USB HS */
299 at91_add_device_usba(&ek_usba_udc_data);
300 /* I2C */
301 at91_add_device_i2c(NULL, 0);
302 /* NAND */
303 ek_add_device_nand();
304 /* SPI */
305 at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
306 /* MMC */
307 at91_add_device_mmc(0, &ek_mmc_data);
308 /* LCD Controller */
309 at91_add_device_lcdc(&ek_lcdc_data);
310 /* AC97 */
311 at91_add_device_ac97(&ek_ac97_data);
312 /* Touch Screen Controller */
313 at91_add_device_tsadcc(&ek_tsadcc_data);
314 /* LEDs */
315 at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
316 /* Push Buttons */
317 ek_add_device_buttons();
318 }
319
320 MACHINE_START(AT91SAM9RLEK, "Atmel AT91SAM9RL-EK")
321 /* Maintainer: Atmel */
322 .timer = &at91sam926x_timer,
323 .map_io = at91_map_io,
324 .init_early = ek_init_early,
325 .init_irq = at91_init_irq_default,
326 .init_machine = ek_board_init,
327 MACHINE_END
328