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/at91sam9_smc.h>
44 #include <mach/at91sam9260_matrix.h>
45 #include <mach/at91_matrix.h>
46
47 #include "at91_aic.h"
48 #include "board.h"
49 #include "sam9_smc.h"
50 #include "generic.h"
51
cpu9krea_init_early(void)52 static void __init cpu9krea_init_early(void)
53 {
54 /* Initialize processor: 18.432 MHz crystal */
55 at91_initialize(18432000);
56 }
57
58 /*
59 * USB Host port
60 */
61 static struct at91_usbh_data __initdata cpu9krea_usbh_data = {
62 .ports = 2,
63 .vbus_pin = {-EINVAL, -EINVAL},
64 .overcurrent_pin= {-EINVAL, -EINVAL},
65 };
66
67 /*
68 * USB Device port
69 */
70 static struct at91_udc_data __initdata cpu9krea_udc_data = {
71 .vbus_pin = AT91_PIN_PC8,
72 .pullup_pin = -EINVAL, /* pull-up driven by UDC */
73 };
74
75 /*
76 * MACB Ethernet device
77 */
78 static struct macb_platform_data __initdata cpu9krea_macb_data = {
79 .phy_irq_pin = -EINVAL,
80 .is_rmii = 1,
81 };
82
83 /*
84 * NAND flash
85 */
86 static struct atmel_nand_data __initdata cpu9krea_nand_data = {
87 .ale = 21,
88 .cle = 22,
89 .rdy_pin = AT91_PIN_PC13,
90 .enable_pin = AT91_PIN_PC14,
91 .bus_width_16 = 0,
92 .det_pin = -EINVAL,
93 .ecc_mode = NAND_ECC_SOFT,
94 };
95
96 #ifdef CONFIG_MACH_CPU9260
97 static struct sam9_smc_config __initdata cpu9krea_nand_smc_config = {
98 .ncs_read_setup = 0,
99 .nrd_setup = 1,
100 .ncs_write_setup = 0,
101 .nwe_setup = 1,
102
103 .ncs_read_pulse = 3,
104 .nrd_pulse = 3,
105 .ncs_write_pulse = 3,
106 .nwe_pulse = 3,
107
108 .read_cycle = 5,
109 .write_cycle = 5,
110
111 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
112 | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
113 .tdf_cycles = 2,
114 };
115 #else
116 static struct sam9_smc_config __initdata cpu9krea_nand_smc_config = {
117 .ncs_read_setup = 0,
118 .nrd_setup = 2,
119 .ncs_write_setup = 0,
120 .nwe_setup = 2,
121
122 .ncs_read_pulse = 4,
123 .nrd_pulse = 4,
124 .ncs_write_pulse = 4,
125 .nwe_pulse = 4,
126
127 .read_cycle = 7,
128 .write_cycle = 7,
129
130 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
131 | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
132 .tdf_cycles = 3,
133 };
134 #endif
135
cpu9krea_add_device_nand(void)136 static void __init cpu9krea_add_device_nand(void)
137 {
138 sam9_smc_configure(0, 3, &cpu9krea_nand_smc_config);
139 at91_add_device_nand(&cpu9krea_nand_data);
140 }
141
142 /*
143 * NOR flash
144 */
145 static struct physmap_flash_data cpuat9260_nor_data = {
146 .width = 2,
147 };
148
149 #define NOR_BASE AT91_CHIPSELECT_0
150 #define NOR_SIZE SZ_64M
151
152 static struct resource nor_flash_resources[] = {
153 {
154 .start = NOR_BASE,
155 .end = NOR_BASE + NOR_SIZE - 1,
156 .flags = IORESOURCE_MEM,
157 }
158 };
159
160 static struct platform_device cpu9krea_nor_flash = {
161 .name = "physmap-flash",
162 .id = 0,
163 .dev = {
164 .platform_data = &cpuat9260_nor_data,
165 },
166 .resource = nor_flash_resources,
167 .num_resources = ARRAY_SIZE(nor_flash_resources),
168 };
169
170 #ifdef CONFIG_MACH_CPU9260
171 static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = {
172 .ncs_read_setup = 0,
173 .nrd_setup = 1,
174 .ncs_write_setup = 0,
175 .nwe_setup = 1,
176
177 .ncs_read_pulse = 10,
178 .nrd_pulse = 10,
179 .ncs_write_pulse = 6,
180 .nwe_pulse = 6,
181
182 .read_cycle = 12,
183 .write_cycle = 8,
184
185 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
186 | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
187 | AT91_SMC_DBW_16,
188 .tdf_cycles = 2,
189 };
190 #else
191 static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = {
192 .ncs_read_setup = 0,
193 .nrd_setup = 1,
194 .ncs_write_setup = 0,
195 .nwe_setup = 1,
196
197 .ncs_read_pulse = 13,
198 .nrd_pulse = 13,
199 .ncs_write_pulse = 8,
200 .nwe_pulse = 8,
201
202 .read_cycle = 15,
203 .write_cycle = 10,
204
205 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
206 | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
207 | AT91_SMC_DBW_16,
208 .tdf_cycles = 2,
209 };
210 #endif
211
cpu9krea_add_device_nor(void)212 static __init void cpu9krea_add_device_nor(void)
213 {
214 unsigned long csa;
215
216 csa = at91_matrix_read(AT91_MATRIX_EBICSA);
217 at91_matrix_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_VDDIOMSEL_3_3V);
218
219 /* configure chip-select 0 (NOR) */
220 sam9_smc_configure(0, 0, &cpu9krea_nor_smc_config);
221
222 platform_device_register(&cpu9krea_nor_flash);
223 }
224
225 /*
226 * LEDs
227 */
228 static struct gpio_led cpu9krea_leds[] = {
229 { /* LED1 */
230 .name = "LED1",
231 .gpio = AT91_PIN_PC11,
232 .active_low = 1,
233 .default_trigger = "timer",
234 },
235 { /* LED2 */
236 .name = "LED2",
237 .gpio = AT91_PIN_PC12,
238 .active_low = 1,
239 .default_trigger = "heartbeat",
240 },
241 { /* LED3 */
242 .name = "LED3",
243 .gpio = AT91_PIN_PC7,
244 .active_low = 1,
245 .default_trigger = "none",
246 },
247 { /* LED4 */
248 .name = "LED4",
249 .gpio = AT91_PIN_PC9,
250 .active_low = 1,
251 .default_trigger = "none",
252 }
253 };
254
255 static struct i2c_board_info __initdata cpu9krea_i2c_devices[] = {
256 {
257 I2C_BOARD_INFO("ds1339", 0x68),
258 },
259 };
260
261 /*
262 * GPIO Buttons
263 */
264 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
265 static struct gpio_keys_button cpu9krea_buttons[] = {
266 {
267 .gpio = AT91_PIN_PC3,
268 .code = BTN_0,
269 .desc = "BP1",
270 .active_low = 1,
271 .wakeup = 1,
272 },
273 {
274 .gpio = AT91_PIN_PB20,
275 .code = BTN_1,
276 .desc = "BP2",
277 .active_low = 1,
278 .wakeup = 1,
279 }
280 };
281
282 static struct gpio_keys_platform_data cpu9krea_button_data = {
283 .buttons = cpu9krea_buttons,
284 .nbuttons = ARRAY_SIZE(cpu9krea_buttons),
285 };
286
287 static struct platform_device cpu9krea_button_device = {
288 .name = "gpio-keys",
289 .id = -1,
290 .num_resources = 0,
291 .dev = {
292 .platform_data = &cpu9krea_button_data,
293 }
294 };
295
cpu9krea_add_device_buttons(void)296 static void __init cpu9krea_add_device_buttons(void)
297 {
298 at91_set_gpio_input(AT91_PIN_PC3, 1); /* BP1 */
299 at91_set_deglitch(AT91_PIN_PC3, 1);
300 at91_set_gpio_input(AT91_PIN_PB20, 1); /* BP2 */
301 at91_set_deglitch(AT91_PIN_PB20, 1);
302
303 platform_device_register(&cpu9krea_button_device);
304 }
305 #else
cpu9krea_add_device_buttons(void)306 static void __init cpu9krea_add_device_buttons(void)
307 {
308 }
309 #endif
310
311 /*
312 * MCI (SD/MMC)
313 */
314 static struct mci_platform_data __initdata cpu9krea_mci0_data = {
315 .slot[0] = {
316 .bus_width = 4,
317 .detect_pin = AT91_PIN_PA29,
318 .wp_pin = -EINVAL,
319 },
320 };
321
cpu9krea_board_init(void)322 static void __init cpu9krea_board_init(void)
323 {
324 /* NOR */
325 cpu9krea_add_device_nor();
326 /* Serial */
327 /* DGBU on ttyS0. (Rx & Tx only) */
328 at91_register_uart(0, 0, 0);
329
330 /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
331 at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS |
332 ATMEL_UART_RTS | ATMEL_UART_DTR | ATMEL_UART_DSR |
333 ATMEL_UART_DCD | ATMEL_UART_RI);
334
335 /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
336 at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS |
337 ATMEL_UART_RTS);
338
339 /* USART2 on ttyS3. (Rx, Tx, RTS, CTS) */
340 at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS |
341 ATMEL_UART_RTS);
342
343 /* USART3 on ttyS4. (Rx, Tx) */
344 at91_register_uart(AT91SAM9260_ID_US3, 4, 0);
345
346 /* USART4 on ttyS5. (Rx, Tx) */
347 at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
348
349 /* USART5 on ttyS6. (Rx, Tx) */
350 at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
351 at91_add_device_serial();
352 /* USB Host */
353 at91_add_device_usbh(&cpu9krea_usbh_data);
354 /* USB Device */
355 at91_add_device_udc(&cpu9krea_udc_data);
356 /* NAND */
357 cpu9krea_add_device_nand();
358 /* Ethernet */
359 at91_add_device_eth(&cpu9krea_macb_data);
360 /* MMC */
361 at91_add_device_mci(0, &cpu9krea_mci0_data);
362 /* I2C */
363 at91_add_device_i2c(cpu9krea_i2c_devices,
364 ARRAY_SIZE(cpu9krea_i2c_devices));
365 /* LEDs */
366 at91_gpio_leds(cpu9krea_leds, ARRAY_SIZE(cpu9krea_leds));
367 /* Push Buttons */
368 cpu9krea_add_device_buttons();
369 }
370
371 #ifdef CONFIG_MACH_CPU9260
372 MACHINE_START(CPUAT9260, "Eukrea CPU9260")
373 #else
374 MACHINE_START(CPUAT9G20, "Eukrea CPU9G20")
375 #endif
376 /* Maintainer: Eric Benard - EUKREA Electromatique */
377 .init_time = at91sam926x_pit_init,
378 .map_io = at91_map_io,
379 .handle_irq = at91_aic_handle_irq,
380 .init_early = cpu9krea_init_early,
381 .init_irq = at91_init_irq_default,
382 .init_machine = cpu9krea_board_init,
383 MACHINE_END
384