1 /*
2 * linux/arch/arm/mach-at91/board-cpu9krea.c
3 *
4 * Copyright (C) 2005 SAN People
5 * Copyright (C) 2006 Atmel
6 * Copyright (C) 2009 Eric Benard - eric@eukrea.com
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/gpio.h>
25 #include <linux/init.h>
26 #include <linux/mm.h>
27 #include <linux/module.h>
28 #include <linux/platform_device.h>
29 #include <linux/clk.h>
30 #include <linux/gpio_keys.h>
31 #include <linux/input.h>
32 #include <linux/mtd/physmap.h>
33
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 <mach/hardware.h>
43 #include <mach/board.h>
44 #include <mach/at91sam9_smc.h>
45 #include <mach/at91sam9260_matrix.h>
46
47 #include "sam9_smc.h"
48 #include "generic.h"
49
cpu9krea_init_early(void)50 static void __init cpu9krea_init_early(void)
51 {
52 /* Initialize processor: 18.432 MHz crystal */
53 at91_initialize(18432000);
54
55 /* DGBU on ttyS0. (Rx & Tx only) */
56 at91_register_uart(0, 0, 0);
57
58 /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
59 at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS |
60 ATMEL_UART_RTS | ATMEL_UART_DTR | ATMEL_UART_DSR |
61 ATMEL_UART_DCD | ATMEL_UART_RI);
62
63 /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
64 at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS |
65 ATMEL_UART_RTS);
66
67 /* USART2 on ttyS3. (Rx, Tx, RTS, CTS) */
68 at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS |
69 ATMEL_UART_RTS);
70
71 /* USART3 on ttyS4. (Rx, Tx) */
72 at91_register_uart(AT91SAM9260_ID_US3, 4, 0);
73
74 /* USART4 on ttyS5. (Rx, Tx) */
75 at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
76
77 /* USART5 on ttyS6. (Rx, Tx) */
78 at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
79
80 /* set serial console to ttyS0 (ie, DBGU) */
81 at91_set_serial_console(0);
82 }
83
84 /*
85 * USB Host port
86 */
87 static struct at91_usbh_data __initdata cpu9krea_usbh_data = {
88 .ports = 2,
89 .vbus_pin = {-EINVAL, -EINVAL},
90 .overcurrent_pin= {-EINVAL, -EINVAL},
91 };
92
93 /*
94 * USB Device port
95 */
96 static struct at91_udc_data __initdata cpu9krea_udc_data = {
97 .vbus_pin = AT91_PIN_PC8,
98 .pullup_pin = -EINVAL, /* pull-up driven by UDC */
99 };
100
101 /*
102 * MACB Ethernet device
103 */
104 static struct macb_platform_data __initdata cpu9krea_macb_data = {
105 .phy_irq_pin = -EINVAL,
106 .is_rmii = 1,
107 };
108
109 /*
110 * NAND flash
111 */
112 static struct atmel_nand_data __initdata cpu9krea_nand_data = {
113 .ale = 21,
114 .cle = 22,
115 .rdy_pin = AT91_PIN_PC13,
116 .enable_pin = AT91_PIN_PC14,
117 .bus_width_16 = 0,
118 .det_pin = -EINVAL,
119 };
120
121 #ifdef CONFIG_MACH_CPU9260
122 static struct sam9_smc_config __initdata cpu9krea_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
137 | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
138 .tdf_cycles = 2,
139 };
140 #else
141 static struct sam9_smc_config __initdata cpu9krea_nand_smc_config = {
142 .ncs_read_setup = 0,
143 .nrd_setup = 2,
144 .ncs_write_setup = 0,
145 .nwe_setup = 2,
146
147 .ncs_read_pulse = 4,
148 .nrd_pulse = 4,
149 .ncs_write_pulse = 4,
150 .nwe_pulse = 4,
151
152 .read_cycle = 7,
153 .write_cycle = 7,
154
155 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
156 | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
157 .tdf_cycles = 3,
158 };
159 #endif
160
cpu9krea_add_device_nand(void)161 static void __init cpu9krea_add_device_nand(void)
162 {
163 sam9_smc_configure(0, 3, &cpu9krea_nand_smc_config);
164 at91_add_device_nand(&cpu9krea_nand_data);
165 }
166
167 /*
168 * NOR flash
169 */
170 static struct physmap_flash_data cpuat9260_nor_data = {
171 .width = 2,
172 };
173
174 #define NOR_BASE AT91_CHIPSELECT_0
175 #define NOR_SIZE SZ_64M
176
177 static struct resource nor_flash_resources[] = {
178 {
179 .start = NOR_BASE,
180 .end = NOR_BASE + NOR_SIZE - 1,
181 .flags = IORESOURCE_MEM,
182 }
183 };
184
185 static struct platform_device cpu9krea_nor_flash = {
186 .name = "physmap-flash",
187 .id = 0,
188 .dev = {
189 .platform_data = &cpuat9260_nor_data,
190 },
191 .resource = nor_flash_resources,
192 .num_resources = ARRAY_SIZE(nor_flash_resources),
193 };
194
195 #ifdef CONFIG_MACH_CPU9260
196 static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = {
197 .ncs_read_setup = 0,
198 .nrd_setup = 1,
199 .ncs_write_setup = 0,
200 .nwe_setup = 1,
201
202 .ncs_read_pulse = 10,
203 .nrd_pulse = 10,
204 .ncs_write_pulse = 6,
205 .nwe_pulse = 6,
206
207 .read_cycle = 12,
208 .write_cycle = 8,
209
210 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
211 | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
212 | AT91_SMC_DBW_16,
213 .tdf_cycles = 2,
214 };
215 #else
216 static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = {
217 .ncs_read_setup = 0,
218 .nrd_setup = 1,
219 .ncs_write_setup = 0,
220 .nwe_setup = 1,
221
222 .ncs_read_pulse = 13,
223 .nrd_pulse = 13,
224 .ncs_write_pulse = 8,
225 .nwe_pulse = 8,
226
227 .read_cycle = 15,
228 .write_cycle = 10,
229
230 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
231 | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
232 | AT91_SMC_DBW_16,
233 .tdf_cycles = 2,
234 };
235 #endif
236
cpu9krea_add_device_nor(void)237 static __init void cpu9krea_add_device_nor(void)
238 {
239 unsigned long csa;
240
241 csa = at91_sys_read(AT91_MATRIX_EBICSA);
242 at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_VDDIOMSEL_3_3V);
243
244 /* configure chip-select 0 (NOR) */
245 sam9_smc_configure(0, 0, &cpu9krea_nor_smc_config);
246
247 platform_device_register(&cpu9krea_nor_flash);
248 }
249
250 /*
251 * LEDs
252 */
253 static struct gpio_led cpu9krea_leds[] = {
254 { /* LED1 */
255 .name = "LED1",
256 .gpio = AT91_PIN_PC11,
257 .active_low = 1,
258 .default_trigger = "timer",
259 },
260 { /* LED2 */
261 .name = "LED2",
262 .gpio = AT91_PIN_PC12,
263 .active_low = 1,
264 .default_trigger = "heartbeat",
265 },
266 { /* LED3 */
267 .name = "LED3",
268 .gpio = AT91_PIN_PC7,
269 .active_low = 1,
270 .default_trigger = "none",
271 },
272 { /* LED4 */
273 .name = "LED4",
274 .gpio = AT91_PIN_PC9,
275 .active_low = 1,
276 .default_trigger = "none",
277 }
278 };
279
280 static struct i2c_board_info __initdata cpu9krea_i2c_devices[] = {
281 {
282 I2C_BOARD_INFO("rtc-ds1307", 0x68),
283 .type = "ds1339",
284 },
285 };
286
287 /*
288 * GPIO Buttons
289 */
290 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
291 static struct gpio_keys_button cpu9krea_buttons[] = {
292 {
293 .gpio = AT91_PIN_PC3,
294 .code = BTN_0,
295 .desc = "BP1",
296 .active_low = 1,
297 .wakeup = 1,
298 },
299 {
300 .gpio = AT91_PIN_PB20,
301 .code = BTN_1,
302 .desc = "BP2",
303 .active_low = 1,
304 .wakeup = 1,
305 }
306 };
307
308 static struct gpio_keys_platform_data cpu9krea_button_data = {
309 .buttons = cpu9krea_buttons,
310 .nbuttons = ARRAY_SIZE(cpu9krea_buttons),
311 };
312
313 static struct platform_device cpu9krea_button_device = {
314 .name = "gpio-keys",
315 .id = -1,
316 .num_resources = 0,
317 .dev = {
318 .platform_data = &cpu9krea_button_data,
319 }
320 };
321
cpu9krea_add_device_buttons(void)322 static void __init cpu9krea_add_device_buttons(void)
323 {
324 at91_set_gpio_input(AT91_PIN_PC3, 1); /* BP1 */
325 at91_set_deglitch(AT91_PIN_PC3, 1);
326 at91_set_gpio_input(AT91_PIN_PB20, 1); /* BP2 */
327 at91_set_deglitch(AT91_PIN_PB20, 1);
328
329 platform_device_register(&cpu9krea_button_device);
330 }
331 #else
cpu9krea_add_device_buttons(void)332 static void __init cpu9krea_add_device_buttons(void)
333 {
334 }
335 #endif
336
337 /*
338 * MCI (SD/MMC)
339 */
340 static struct at91_mmc_data __initdata cpu9krea_mmc_data = {
341 .slot_b = 0,
342 .wire4 = 1,
343 .det_pin = AT91_PIN_PA29,
344 .wp_pin = -EINVAL,
345 .vcc_pin = -EINVAL,
346 };
347
cpu9krea_board_init(void)348 static void __init cpu9krea_board_init(void)
349 {
350 /* NOR */
351 cpu9krea_add_device_nor();
352 /* Serial */
353 at91_add_device_serial();
354 /* USB Host */
355 at91_add_device_usbh(&cpu9krea_usbh_data);
356 /* USB Device */
357 at91_add_device_udc(&cpu9krea_udc_data);
358 /* NAND */
359 cpu9krea_add_device_nand();
360 /* Ethernet */
361 at91_add_device_eth(&cpu9krea_macb_data);
362 /* MMC */
363 at91_add_device_mmc(0, &cpu9krea_mmc_data);
364 /* I2C */
365 at91_add_device_i2c(cpu9krea_i2c_devices,
366 ARRAY_SIZE(cpu9krea_i2c_devices));
367 /* LEDs */
368 at91_gpio_leds(cpu9krea_leds, ARRAY_SIZE(cpu9krea_leds));
369 /* Push Buttons */
370 cpu9krea_add_device_buttons();
371 }
372
373 #ifdef CONFIG_MACH_CPU9260
374 MACHINE_START(CPUAT9260, "Eukrea CPU9260")
375 #else
376 MACHINE_START(CPUAT9G20, "Eukrea CPU9G20")
377 #endif
378 /* Maintainer: Eric Benard - EUKREA Electromatique */
379 .timer = &at91sam926x_timer,
380 .map_io = at91_map_io,
381 .init_early = cpu9krea_init_early,
382 .init_irq = at91_init_irq_default,
383 .init_machine = cpu9krea_board_init,
384 MACHINE_END
385