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41a353d1 EB |
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/init.h> | |
25 | #include <linux/mm.h> | |
26 | #include <linux/module.h> | |
27 | #include <linux/platform_device.h> | |
28 | #include <linux/clk.h> | |
29 | #include <linux/gpio_keys.h> | |
30 | #include <linux/input.h> | |
31 | #include <linux/mtd/physmap.h> | |
32 | ||
33 | #include <asm/setup.h> | |
34 | #include <asm/mach-types.h> | |
35 | #include <asm/irq.h> | |
36 | ||
37 | #include <asm/mach/arch.h> | |
38 | #include <asm/mach/map.h> | |
39 | #include <asm/mach/irq.h> | |
40 | ||
41 | #include <mach/hardware.h> | |
42 | #include <mach/board.h> | |
43 | #include <mach/gpio.h> | |
44 | #include <mach/at91sam9_smc.h> | |
45 | #include <mach/at91sam9260_matrix.h> | |
46 | ||
47 | #include "sam9_smc.h" | |
48 | #include "generic.h" | |
49 | ||
50 | static void __init cpu9krea_map_io(void) | |
51 | { | |
52 | /* Initialize processor: 18.432 MHz crystal */ | |
53 | at91sam9260_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 | static void __init cpu9krea_init_irq(void) | |
85 | { | |
86 | at91sam9260_init_interrupts(NULL); | |
87 | } | |
88 | ||
89 | /* | |
90 | * USB Host port | |
91 | */ | |
92 | static struct at91_usbh_data __initdata cpu9krea_usbh_data = { | |
93 | .ports = 2, | |
94 | }; | |
95 | ||
96 | /* | |
97 | * USB Device port | |
98 | */ | |
99 | static struct at91_udc_data __initdata cpu9krea_udc_data = { | |
100 | .vbus_pin = AT91_PIN_PC8, | |
101 | .pullup_pin = 0, /* pull-up driven by UDC */ | |
102 | }; | |
103 | ||
104 | /* | |
105 | * MACB Ethernet device | |
106 | */ | |
107 | static struct at91_eth_data __initdata cpu9krea_macb_data = { | |
108 | .is_rmii = 1, | |
109 | }; | |
110 | ||
111 | /* | |
112 | * NAND flash | |
113 | */ | |
114 | static struct atmel_nand_data __initdata cpu9krea_nand_data = { | |
115 | .ale = 21, | |
116 | .cle = 22, | |
117 | .rdy_pin = AT91_PIN_PC13, | |
118 | .enable_pin = AT91_PIN_PC14, | |
119 | .bus_width_16 = 0, | |
120 | }; | |
121 | ||
122 | #ifdef CONFIG_MACH_CPU9260 | |
123 | static struct sam9_smc_config __initdata cpu9krea_nand_smc_config = { | |
124 | .ncs_read_setup = 0, | |
125 | .nrd_setup = 1, | |
126 | .ncs_write_setup = 0, | |
127 | .nwe_setup = 1, | |
128 | ||
129 | .ncs_read_pulse = 3, | |
130 | .nrd_pulse = 3, | |
131 | .ncs_write_pulse = 3, | |
132 | .nwe_pulse = 3, | |
133 | ||
134 | .read_cycle = 5, | |
135 | .write_cycle = 5, | |
136 | ||
137 | .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | |
138 | | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8, | |
139 | .tdf_cycles = 2, | |
140 | }; | |
141 | #else | |
142 | static struct sam9_smc_config __initdata cpu9krea_nand_smc_config = { | |
143 | .ncs_read_setup = 0, | |
144 | .nrd_setup = 2, | |
145 | .ncs_write_setup = 0, | |
146 | .nwe_setup = 2, | |
147 | ||
148 | .ncs_read_pulse = 4, | |
149 | .nrd_pulse = 4, | |
150 | .ncs_write_pulse = 4, | |
151 | .nwe_pulse = 4, | |
152 | ||
153 | .read_cycle = 7, | |
154 | .write_cycle = 7, | |
155 | ||
156 | .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | |
157 | | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8, | |
158 | .tdf_cycles = 3, | |
159 | }; | |
160 | #endif | |
161 | ||
162 | static void __init cpu9krea_add_device_nand(void) | |
163 | { | |
164 | sam9_smc_configure(3, &cpu9krea_nand_smc_config); | |
165 | at91_add_device_nand(&cpu9krea_nand_data); | |
166 | } | |
167 | ||
168 | /* | |
169 | * NOR flash | |
170 | */ | |
171 | static struct physmap_flash_data cpuat9260_nor_data = { | |
172 | .width = 2, | |
173 | }; | |
174 | ||
175 | #define NOR_BASE AT91_CHIPSELECT_0 | |
176 | #define NOR_SIZE SZ_64M | |
177 | ||
178 | static struct resource nor_flash_resources[] = { | |
179 | { | |
180 | .start = NOR_BASE, | |
181 | .end = NOR_BASE + NOR_SIZE - 1, | |
182 | .flags = IORESOURCE_MEM, | |
183 | } | |
184 | }; | |
185 | ||
186 | static struct platform_device cpu9krea_nor_flash = { | |
187 | .name = "physmap-flash", | |
188 | .id = 0, | |
189 | .dev = { | |
190 | .platform_data = &cpuat9260_nor_data, | |
191 | }, | |
192 | .resource = nor_flash_resources, | |
193 | .num_resources = ARRAY_SIZE(nor_flash_resources), | |
194 | }; | |
195 | ||
196 | #ifdef CONFIG_MACH_CPU9260 | |
197 | static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = { | |
198 | .ncs_read_setup = 0, | |
199 | .nrd_setup = 1, | |
200 | .ncs_write_setup = 0, | |
201 | .nwe_setup = 1, | |
202 | ||
203 | .ncs_read_pulse = 10, | |
204 | .nrd_pulse = 10, | |
205 | .ncs_write_pulse = 6, | |
206 | .nwe_pulse = 6, | |
207 | ||
208 | .read_cycle = 12, | |
209 | .write_cycle = 8, | |
210 | ||
211 | .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | |
212 | | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | |
213 | | AT91_SMC_DBW_16, | |
214 | .tdf_cycles = 2, | |
215 | }; | |
216 | #else | |
217 | static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = { | |
218 | .ncs_read_setup = 0, | |
219 | .nrd_setup = 1, | |
220 | .ncs_write_setup = 0, | |
221 | .nwe_setup = 1, | |
222 | ||
223 | .ncs_read_pulse = 13, | |
224 | .nrd_pulse = 13, | |
225 | .ncs_write_pulse = 8, | |
226 | .nwe_pulse = 8, | |
227 | ||
228 | .read_cycle = 15, | |
229 | .write_cycle = 10, | |
230 | ||
231 | .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | |
232 | | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | |
233 | | AT91_SMC_DBW_16, | |
234 | .tdf_cycles = 2, | |
235 | }; | |
236 | #endif | |
237 | ||
238 | static __init void cpu9krea_add_device_nor(void) | |
239 | { | |
240 | unsigned long csa; | |
241 | ||
242 | csa = at91_sys_read(AT91_MATRIX_EBICSA); | |
243 | at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_VDDIOMSEL_3_3V); | |
244 | ||
245 | /* configure chip-select 0 (NOR) */ | |
246 | sam9_smc_configure(0, &cpu9krea_nor_smc_config); | |
247 | ||
248 | platform_device_register(&cpu9krea_nor_flash); | |
249 | } | |
250 | ||
251 | /* | |
252 | * LEDs | |
253 | */ | |
254 | static struct gpio_led cpu9krea_leds[] = { | |
255 | { /* LED1 */ | |
256 | .name = "LED1", | |
257 | .gpio = AT91_PIN_PC11, | |
258 | .active_low = 1, | |
259 | .default_trigger = "timer", | |
260 | }, | |
261 | { /* LED2 */ | |
262 | .name = "LED2", | |
263 | .gpio = AT91_PIN_PC12, | |
264 | .active_low = 1, | |
265 | .default_trigger = "heartbeat", | |
266 | }, | |
267 | { /* LED3 */ | |
268 | .name = "LED3", | |
269 | .gpio = AT91_PIN_PC7, | |
270 | .active_low = 1, | |
271 | .default_trigger = "none", | |
272 | }, | |
273 | { /* LED4 */ | |
274 | .name = "LED4", | |
275 | .gpio = AT91_PIN_PC9, | |
276 | .active_low = 1, | |
277 | .default_trigger = "none", | |
278 | } | |
279 | }; | |
280 | ||
281 | static struct i2c_board_info __initdata cpu9krea_i2c_devices[] = { | |
282 | { | |
283 | I2C_BOARD_INFO("rtc-ds1307", 0x68), | |
284 | .type = "ds1339", | |
285 | }, | |
286 | }; | |
287 | ||
288 | /* | |
289 | * GPIO Buttons | |
290 | */ | |
291 | #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) | |
292 | static struct gpio_keys_button cpu9krea_buttons[] = { | |
293 | { | |
294 | .gpio = AT91_PIN_PC3, | |
295 | .code = BTN_0, | |
296 | .desc = "BP1", | |
297 | .active_low = 1, | |
298 | .wakeup = 1, | |
299 | }, | |
300 | { | |
301 | .gpio = AT91_PIN_PB20, | |
302 | .code = BTN_1, | |
303 | .desc = "BP2", | |
304 | .active_low = 1, | |
305 | .wakeup = 1, | |
306 | } | |
307 | }; | |
308 | ||
309 | static struct gpio_keys_platform_data cpu9krea_button_data = { | |
310 | .buttons = cpu9krea_buttons, | |
311 | .nbuttons = ARRAY_SIZE(cpu9krea_buttons), | |
312 | }; | |
313 | ||
314 | static struct platform_device cpu9krea_button_device = { | |
315 | .name = "gpio-keys", | |
316 | .id = -1, | |
317 | .num_resources = 0, | |
318 | .dev = { | |
319 | .platform_data = &cpu9krea_button_data, | |
320 | } | |
321 | }; | |
322 | ||
323 | static void __init cpu9krea_add_device_buttons(void) | |
324 | { | |
325 | at91_set_gpio_input(AT91_PIN_PC3, 1); /* BP1 */ | |
326 | at91_set_deglitch(AT91_PIN_PC3, 1); | |
327 | at91_set_gpio_input(AT91_PIN_PB20, 1); /* BP2 */ | |
328 | at91_set_deglitch(AT91_PIN_PB20, 1); | |
329 | ||
330 | platform_device_register(&cpu9krea_button_device); | |
331 | } | |
332 | #else | |
333 | static void __init cpu9krea_add_device_buttons(void) | |
334 | { | |
335 | } | |
336 | #endif | |
337 | ||
338 | /* | |
339 | * MCI (SD/MMC) | |
340 | */ | |
341 | static struct at91_mmc_data __initdata cpu9krea_mmc_data = { | |
342 | .slot_b = 0, | |
343 | .wire4 = 1, | |
344 | .det_pin = AT91_PIN_PA29, | |
345 | }; | |
346 | ||
347 | static void __init cpu9krea_board_init(void) | |
348 | { | |
349 | /* NOR */ | |
350 | cpu9krea_add_device_nor(); | |
351 | /* Serial */ | |
352 | at91_add_device_serial(); | |
353 | /* USB Host */ | |
354 | at91_add_device_usbh(&cpu9krea_usbh_data); | |
355 | /* USB Device */ | |
356 | at91_add_device_udc(&cpu9krea_udc_data); | |
357 | /* NAND */ | |
358 | cpu9krea_add_device_nand(); | |
359 | /* Ethernet */ | |
360 | at91_add_device_eth(&cpu9krea_macb_data); | |
361 | /* MMC */ | |
362 | at91_add_device_mmc(0, &cpu9krea_mmc_data); | |
363 | /* I2C */ | |
364 | at91_add_device_i2c(cpu9krea_i2c_devices, | |
365 | ARRAY_SIZE(cpu9krea_i2c_devices)); | |
366 | /* LEDs */ | |
367 | at91_gpio_leds(cpu9krea_leds, ARRAY_SIZE(cpu9krea_leds)); | |
368 | /* Push Buttons */ | |
369 | cpu9krea_add_device_buttons(); | |
370 | } | |
371 | ||
372 | #ifdef CONFIG_MACH_CPU9260 | |
373 | MACHINE_START(CPUAT9260, "Eukrea CPU9260") | |
374 | #else | |
375 | MACHINE_START(CPUAT9G20, "Eukrea CPU9G20") | |
376 | #endif | |
377 | /* Maintainer: Eric Benard - EUKREA Electromatique */ | |
41a353d1 EB |
378 | .boot_params = AT91_SDRAM_BASE + 0x100, |
379 | .timer = &at91sam926x_timer, | |
380 | .map_io = cpu9krea_map_io, | |
381 | .init_irq = cpu9krea_init_irq, | |
382 | .init_machine = cpu9krea_board_init, | |
383 | MACHINE_END |