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sedji gaouaou61352662008-07-10 10:15:35 +01001/*
2 * Copyright (C) 2005 SAN People
3 * Copyright (C) 2008 Atmel
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20#include <linux/types.h>
Russell King2f8163b2011-07-26 10:53:52 +010021#include <linux/gpio.h>
sedji gaouaou61352662008-07-10 10:15:35 +010022#include <linux/init.h>
23#include <linux/mm.h>
24#include <linux/module.h>
25#include <linux/platform_device.h>
26#include <linux/spi/spi.h>
27#include <linux/spi/at73c213.h>
Nicolas Ferre59c5fe62009-06-29 12:11:50 +010028#include <linux/gpio_keys.h>
29#include <linux/input.h>
sedji gaouaou61352662008-07-10 10:15:35 +010030#include <linux/clk.h>
Dmitry Eremin-Solenikov5e886f62010-06-03 13:56:32 +010031#include <linux/regulator/machine.h>
32#include <linux/regulator/fixed.h>
33#include <linux/regulator/consumer.h>
sedji gaouaou61352662008-07-10 10:15:35 +010034
Russell Kinga09e64f2008-08-05 16:14:15 +010035#include <mach/hardware.h>
sedji gaouaou61352662008-07-10 10:15:35 +010036#include <asm/setup.h>
37#include <asm/mach-types.h>
38#include <asm/irq.h>
39
40#include <asm/mach/arch.h>
41#include <asm/mach/map.h>
42#include <asm/mach/irq.h>
43
Russell Kinga09e64f2008-08-05 16:14:15 +010044#include <mach/board.h>
Andrew Victor8cdae512008-10-06 20:05:35 +010045#include <mach/at91sam9_smc.h>
Jean-Christophe PLAGNIOL-VILLARD76b2ab72011-04-14 00:34:03 +080046#include <mach/system_rev.h>
sedji gaouaou61352662008-07-10 10:15:35 +010047
Andrew Victor8cdae512008-10-06 20:05:35 +010048#include "sam9_smc.h"
sedji gaouaou61352662008-07-10 10:15:35 +010049#include "generic.h"
50
Jean-Christophe PLAGNIOL-VILLARDa6e016f2010-09-21 18:01:37 +020051/*
52 * board revision encoding
53 * bit 0:
54 * 0 => 1 sd/mmc slot
55 * 1 => 2 sd/mmc slots connectors (board from revision C)
56 */
57#define HAVE_2MMC (1 << 0)
58static int inline ek_have_2mmc(void)
59{
60 return machine_is_at91sam9g20ek_2mmc() || (system_rev & HAVE_2MMC);
61}
62
sedji gaouaou61352662008-07-10 10:15:35 +010063
Jean-Christophe PLAGNIOL-VILLARD1b021a32011-04-28 20:19:32 +080064static void __init ek_init_early(void)
sedji gaouaou61352662008-07-10 10:15:35 +010065{
66 /* Initialize processor: 18.432 MHz crystal */
Jean-Christophe PLAGNIOL-VILLARD21d08b92011-04-23 15:28:34 +080067 at91_initialize(18432000);
sedji gaouaou61352662008-07-10 10:15:35 +010068
Samuel R. C. Vale4f379402009-07-10 12:07:15 -030069 /* DBGU on ttyS0. (Rx & Tx only) */
sedji gaouaou61352662008-07-10 10:15:35 +010070 at91_register_uart(0, 0, 0);
71
72 /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
73 at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
74 | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
75 | ATMEL_UART_RI);
76
77 /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
78 at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
79
80 /* set serial console to ttyS0 (ie, DBGU) */
81 at91_set_serial_console(0);
82}
83
sedji gaouaou61352662008-07-10 10:15:35 +010084/*
85 * USB Host port
86 */
87static struct at91_usbh_data __initdata ek_usbh_data = {
88 .ports = 2,
89};
90
91/*
92 * USB Device port
93 */
94static struct at91_udc_data __initdata ek_udc_data = {
95 .vbus_pin = AT91_PIN_PC5,
96 .pullup_pin = 0, /* pull-up driven by UDC */
97};
98
99
100/*
101 * SPI devices.
102 */
103static struct spi_board_info ek_spi_devices[] = {
Jean-Christophe PLAGNIOL-VILLARDa6e016f2010-09-21 18:01:37 +0200104#if !(defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_AT91))
sedji gaouaou61352662008-07-10 10:15:35 +0100105 { /* DataFlash chip */
106 .modalias = "mtd_dataflash",
107 .chip_select = 1,
108 .max_speed_hz = 15 * 1000 * 1000,
109 .bus_num = 0,
110 },
111#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
112 { /* DataFlash card */
113 .modalias = "mtd_dataflash",
114 .chip_select = 0,
115 .max_speed_hz = 15 * 1000 * 1000,
116 .bus_num = 0,
117 },
118#endif
119#endif
120};
121
122
123/*
124 * MACB Ethernet device
125 */
Jamie Iles84e0cdb2011-03-08 20:17:06 +0000126static struct macb_platform_data __initdata ek_macb_data = {
sedji gaouaou61352662008-07-10 10:15:35 +0100127 .phy_irq_pin = AT91_PIN_PA7,
128 .is_rmii = 1,
129};
130
Jean-Christophe PLAGNIOL-VILLARDa6e016f2010-09-21 18:01:37 +0200131static void __init ek_add_device_macb(void)
132{
133 if (ek_have_2mmc())
134 ek_macb_data.phy_irq_pin = AT91_PIN_PB0;
135
136 at91_add_device_eth(&ek_macb_data);
137}
sedji gaouaou61352662008-07-10 10:15:35 +0100138
139/*
140 * NAND flash
141 */
142static struct mtd_partition __initdata ek_nand_partition[] = {
143 {
144 .name = "Bootstrap",
145 .offset = 0,
Andrew Victore5052402008-09-21 21:30:02 +0100146 .size = 4 * SZ_1M,
sedji gaouaou61352662008-07-10 10:15:35 +0100147 },
148 {
149 .name = "Partition 1",
Andrew Victore5052402008-09-21 21:30:02 +0100150 .offset = MTDPART_OFS_NXTBLK,
151 .size = 60 * SZ_1M,
sedji gaouaou61352662008-07-10 10:15:35 +0100152 },
153 {
154 .name = "Partition 2",
Andrew Victore5052402008-09-21 21:30:02 +0100155 .offset = MTDPART_OFS_NXTBLK,
sedji gaouaou61352662008-07-10 10:15:35 +0100156 .size = MTDPART_SIZ_FULL,
157 },
158};
159
sedji gaouaou61352662008-07-10 10:15:35 +0100160/* det_pin is not connected */
Haavard Skinnemoen7c896832008-07-28 16:57:22 +0100161static struct atmel_nand_data __initdata ek_nand_data = {
sedji gaouaou61352662008-07-10 10:15:35 +0100162 .ale = 21,
163 .cle = 22,
164 .rdy_pin = AT91_PIN_PC13,
165 .enable_pin = AT91_PIN_PC14,
Dmitry Eremin-Solenikov1754aab2011-05-29 17:49:22 +0400166 .parts = ek_nand_partition,
167 .num_parts = ARRAY_SIZE(ek_nand_partition),
sedji gaouaou61352662008-07-10 10:15:35 +0100168};
169
Andrew Victor8cdae512008-10-06 20:05:35 +0100170static struct sam9_smc_config __initdata ek_nand_smc_config = {
171 .ncs_read_setup = 0,
172 .nrd_setup = 2,
173 .ncs_write_setup = 0,
174 .nwe_setup = 2,
175
176 .ncs_read_pulse = 4,
177 .nrd_pulse = 4,
178 .ncs_write_pulse = 4,
179 .nwe_pulse = 4,
180
181 .read_cycle = 7,
182 .write_cycle = 7,
183
184 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
185 .tdf_cycles = 3,
186};
187
188static void __init ek_add_device_nand(void)
189{
Nicolas Ferre64393b32011-07-01 12:25:24 +0200190 ek_nand_data.bus_width_16 = board_have_nand_16bit();
Andrew Victor8cdae512008-10-06 20:05:35 +0100191 /* setup bus-width (8 or 16) */
192 if (ek_nand_data.bus_width_16)
193 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
194 else
195 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
196
197 /* configure chip-select 3 (NAND) */
198 sam9_smc_configure(3, &ek_nand_smc_config);
199
200 at91_add_device_nand(&ek_nand_data);
201}
202
sedji gaouaou61352662008-07-10 10:15:35 +0100203
204/*
205 * MCI (SD/MMC)
Jean-Christophe PLAGNIOL-VILLARDa6e016f2010-09-21 18:01:37 +0200206 * wp_pin and vcc_pin are not connected
sedji gaouaou61352662008-07-10 10:15:35 +0100207 */
Jean-Christophe PLAGNIOL-VILLARDa6e016f2010-09-21 18:01:37 +0200208#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
209static struct mci_platform_data __initdata ek_mmc_data = {
210 .slot[1] = {
211 .bus_width = 4,
212 .detect_pin = AT91_PIN_PC9,
213 },
sedji gaouaou61352662008-07-10 10:15:35 +0100214
Jean-Christophe PLAGNIOL-VILLARDa6e016f2010-09-21 18:01:37 +0200215};
216#else
217static struct at91_mmc_data __initdata ek_mmc_data = {
218 .slot_b = 1, /* Only one slot so use slot B */
219 .wire4 = 1,
220 .det_pin = AT91_PIN_PC9,
221};
222#endif
223
224static void __init ek_add_device_mmc(void)
225{
226#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
227 if (ek_have_2mmc()) {
228 ek_mmc_data.slot[0].bus_width = 4;
229 ek_mmc_data.slot[0].detect_pin = AT91_PIN_PC2;
230 }
231 at91_add_device_mci(0, &ek_mmc_data);
232#else
233 at91_add_device_mmc(0, &ek_mmc_data);
234#endif
235}
sedji gaouaou61352662008-07-10 10:15:35 +0100236
237/*
238 * LEDs
239 */
240static struct gpio_led ek_leds[] = {
241 { /* "bottom" led, green, userled1 to be defined */
242 .name = "ds5",
243 .gpio = AT91_PIN_PA6,
244 .active_low = 1,
245 .default_trigger = "none",
246 },
247 { /* "power" led, yellow */
248 .name = "ds1",
249 .gpio = AT91_PIN_PA9,
250 .default_trigger = "heartbeat",
251 }
252};
253
Jean-Christophe PLAGNIOL-VILLARDa6e016f2010-09-21 18:01:37 +0200254static void __init ek_add_device_gpio_leds(void)
255{
256 if (ek_have_2mmc()) {
257 ek_leds[0].gpio = AT91_PIN_PB8;
258 ek_leds[1].gpio = AT91_PIN_PB9;
259 }
260
261 at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
262}
Nicolas Ferre59c5fe62009-06-29 12:11:50 +0100263
264/*
265 * GPIO Buttons
266 */
267#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
268static struct gpio_keys_button ek_buttons[] = {
269 {
270 .gpio = AT91_PIN_PA30,
271 .code = BTN_3,
272 .desc = "Button 3",
273 .active_low = 1,
274 .wakeup = 1,
275 },
276 {
277 .gpio = AT91_PIN_PA31,
278 .code = BTN_4,
279 .desc = "Button 4",
280 .active_low = 1,
281 .wakeup = 1,
282 }
283};
284
285static struct gpio_keys_platform_data ek_button_data = {
286 .buttons = ek_buttons,
287 .nbuttons = ARRAY_SIZE(ek_buttons),
288};
289
290static struct platform_device ek_button_device = {
291 .name = "gpio-keys",
292 .id = -1,
293 .num_resources = 0,
294 .dev = {
295 .platform_data = &ek_button_data,
296 }
297};
298
299static void __init ek_add_device_buttons(void)
300{
301 at91_set_gpio_input(AT91_PIN_PA30, 1); /* btn3 */
302 at91_set_deglitch(AT91_PIN_PA30, 1);
303 at91_set_gpio_input(AT91_PIN_PA31, 1); /* btn4 */
304 at91_set_deglitch(AT91_PIN_PA31, 1);
305
306 platform_device_register(&ek_button_device);
307}
308#else
309static void __init ek_add_device_buttons(void) {}
310#endif
311
Dmitry Eremin-Solenikov5e886f62010-06-03 13:56:32 +0100312#if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) || defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE)
313static struct regulator_consumer_supply ek_audio_consumer_supplies[] = {
314 REGULATOR_SUPPLY("AVDD", "0-001b"),
315 REGULATOR_SUPPLY("HPVDD", "0-001b"),
316 REGULATOR_SUPPLY("DBVDD", "0-001b"),
317 REGULATOR_SUPPLY("DCVDD", "0-001b"),
318};
319
320static struct regulator_init_data ek_avdd_reg_init_data = {
321 .constraints = {
322 .name = "3V3",
323 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
324 },
325 .consumer_supplies = ek_audio_consumer_supplies,
326 .num_consumer_supplies = ARRAY_SIZE(ek_audio_consumer_supplies),
327};
328
329static struct fixed_voltage_config ek_vdd_pdata = {
330 .supply_name = "board-3V3",
331 .microvolts = 3300000,
332 .gpio = -EINVAL,
333 .enabled_at_boot = 0,
334 .init_data = &ek_avdd_reg_init_data,
335};
336static struct platform_device ek_voltage_regulator = {
337 .name = "reg-fixed-voltage",
338 .id = -1,
339 .num_resources = 0,
340 .dev = {
341 .platform_data = &ek_vdd_pdata,
342 },
343};
344static void __init ek_add_regulators(void)
345{
346 platform_device_register(&ek_voltage_regulator);
347}
348#else
349static void __init ek_add_regulators(void) {}
350#endif
351
Nicolas Ferre59c5fe62009-06-29 12:11:50 +0100352
Dmitry Baryshkov6953e472009-05-25 08:02:35 +0100353static struct i2c_board_info __initdata ek_i2c_devices[] = {
Rob Alley438ff392010-03-11 02:15:04 +0100354 {
355 I2C_BOARD_INFO("24c512", 0x50)
356 },
357 {
358 I2C_BOARD_INFO("wm8731", 0x1b)
359 },
Dmitry Baryshkov6953e472009-05-25 08:02:35 +0100360};
361
362
sedji gaouaou61352662008-07-10 10:15:35 +0100363static void __init ek_board_init(void)
364{
365 /* Serial */
366 at91_add_device_serial();
367 /* USB Host */
368 at91_add_device_usbh(&ek_usbh_data);
369 /* USB Device */
370 at91_add_device_udc(&ek_udc_data);
371 /* SPI */
372 at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
373 /* NAND */
Andrew Victor8cdae512008-10-06 20:05:35 +0100374 ek_add_device_nand();
sedji gaouaou61352662008-07-10 10:15:35 +0100375 /* Ethernet */
Jean-Christophe PLAGNIOL-VILLARDa6e016f2010-09-21 18:01:37 +0200376 ek_add_device_macb();
Dmitry Eremin-Solenikov5e886f62010-06-03 13:56:32 +0100377 /* Regulators */
378 ek_add_regulators();
sedji gaouaou61352662008-07-10 10:15:35 +0100379 /* MMC */
Jean-Christophe PLAGNIOL-VILLARDa6e016f2010-09-21 18:01:37 +0200380 ek_add_device_mmc();
sedji gaouaou61352662008-07-10 10:15:35 +0100381 /* I2C */
Dmitry Baryshkov6953e472009-05-25 08:02:35 +0100382 at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
sedji gaouaou61352662008-07-10 10:15:35 +0100383 /* LEDs */
Jean-Christophe PLAGNIOL-VILLARDa6e016f2010-09-21 18:01:37 +0200384 ek_add_device_gpio_leds();
Nicolas Ferre59c5fe62009-06-29 12:11:50 +0100385 /* Push Buttons */
386 ek_add_device_buttons();
Mark Brown423145a52009-02-16 20:39:19 +0100387 /* PCK0 provides MCLK to the WM8731 */
388 at91_set_B_periph(AT91_PIN_PC1, 0);
389 /* SSC (for WM8731) */
390 at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
sedji gaouaou61352662008-07-10 10:15:35 +0100391}
392
393MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK")
394 /* Maintainer: Atmel */
sedji gaouaou61352662008-07-10 10:15:35 +0100395 .timer = &at91sam926x_timer,
Jean-Christophe PLAGNIOL-VILLARD21d08b92011-04-23 15:28:34 +0800396 .map_io = at91_map_io,
Jean-Christophe PLAGNIOL-VILLARD1b021a32011-04-28 20:19:32 +0800397 .init_early = ek_init_early,
Jean-Christophe PLAGNIOL-VILLARD92100c12011-04-23 15:28:34 +0800398 .init_irq = at91_init_irq_default,
sedji gaouaou61352662008-07-10 10:15:35 +0100399 .init_machine = ek_board_init,
400MACHINE_END
Jean-Christophe PLAGNIOL-VILLARDa6e016f2010-09-21 18:01:37 +0200401
402MACHINE_START(AT91SAM9G20EK_2MMC, "Atmel AT91SAM9G20-EK 2 MMC Slot Mod")
403 /* Maintainer: Atmel */
Jean-Christophe PLAGNIOL-VILLARDa6e016f2010-09-21 18:01:37 +0200404 .timer = &at91sam926x_timer,
Jean-Christophe PLAGNIOL-VILLARD21d08b92011-04-23 15:28:34 +0800405 .map_io = at91_map_io,
Jean-Christophe PLAGNIOL-VILLARD1b021a32011-04-28 20:19:32 +0800406 .init_early = ek_init_early,
Jean-Christophe PLAGNIOL-VILLARD92100c12011-04-23 15:28:34 +0800407 .init_irq = at91_init_irq_default,
Jean-Christophe PLAGNIOL-VILLARDa6e016f2010-09-21 18:01:37 +0200408 .init_machine = ek_board_init,
409MACHINE_END