1/*
2 * linux/arch/arm/mach-at91/board-sam9260ek.c
3 *
4 *  Copyright (C) 2005 SAN People
5 *  Copyright (C) 2006 Atmel
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
20 */
21
22#include <linux/types.h>
23#include <linux/gpio.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/spi/spi.h>
29#include <linux/spi/at73c213.h>
30#include <linux/clk.h>
31#include <linux/i2c/at24.h>
32#include <linux/gpio_keys.h>
33#include <linux/input.h>
34
35#include <asm/setup.h>
36#include <asm/mach-types.h>
37#include <asm/irq.h>
38
39#include <asm/mach/arch.h>
40#include <asm/mach/map.h>
41#include <asm/mach/irq.h>
42
43#include <mach/hardware.h>
44#include <mach/board.h>
45#include <mach/at91sam9_smc.h>
46#include <mach/at91_shdwc.h>
47#include <mach/system_rev.h>
48
49#include "sam9_smc.h"
50#include "generic.h"
51
52
53static void __init ek_init_early(void)
54{
55	/* Initialize processor: 18.432 MHz crystal */
56	at91_initialize(18432000);
57
58	/* DBGU on ttyS0. (Rx & Tx only) */
59	at91_register_uart(0, 0, 0);
60
61	/* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
62	at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
63			   | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
64			   | ATMEL_UART_RI);
65
66	/* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
67	at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
68
69	/* set serial console to ttyS0 (ie, DBGU) */
70	at91_set_serial_console(0);
71}
72
73/*
74 * USB Host port
75 */
76static struct at91_usbh_data __initdata ek_usbh_data = {
77	.ports		= 2,
78	.vbus_pin	= {-EINVAL, -EINVAL},
79	.overcurrent_pin= {-EINVAL, -EINVAL},
80};
81
82/*
83 * USB Device port
84 */
85static struct at91_udc_data __initdata ek_udc_data = {
86	.vbus_pin	= AT91_PIN_PC5,
87	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
88};
89
90
91/*
92 * Audio
93 */
94static struct at73c213_board_info at73c213_data = {
95	.ssc_id		= 0,
96	.shortname	= "AT91SAM9260-EK external DAC",
97};
98
99#if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
100static void __init at73c213_set_clk(struct at73c213_board_info *info)
101{
102	struct clk *pck0;
103	struct clk *plla;
104
105	pck0 = clk_get(NULL, "pck0");
106	plla = clk_get(NULL, "plla");
107
108	/* AT73C213 MCK Clock */
109	at91_set_B_periph(AT91_PIN_PC1, 0);	/* PCK0 */
110
111	clk_set_parent(pck0, plla);
112	clk_put(plla);
113
114	info->dac_clk = pck0;
115}
116#else
117static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
118#endif
119
120/*
121 * SPI devices.
122 */
123static struct spi_board_info ek_spi_devices[] = {
124#if !defined(CONFIG_MMC_AT91)
125	{	/* DataFlash chip */
126		.modalias	= "mtd_dataflash",
127		.chip_select	= 1,
128		.max_speed_hz	= 15 * 1000 * 1000,
129		.bus_num	= 0,
130	},
131#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
132	{	/* DataFlash card */
133		.modalias	= "mtd_dataflash",
134		.chip_select	= 0,
135		.max_speed_hz	= 15 * 1000 * 1000,
136		.bus_num	= 0,
137	},
138#endif
139#endif
140#if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
141	{	/* AT73C213 DAC */
142		.modalias	= "at73c213",
143		.chip_select	= 0,
144		.max_speed_hz	= 10 * 1000 * 1000,
145		.bus_num	= 1,
146		.mode		= SPI_MODE_1,
147		.platform_data	= &at73c213_data,
148	},
149#endif
150};
151
152
153/*
154 * MACB Ethernet device
155 */
156static struct macb_platform_data __initdata ek_macb_data = {
157	.phy_irq_pin	= AT91_PIN_PA7,
158	.is_rmii	= 1,
159};
160
161
162/*
163 * NAND flash
164 */
165static struct mtd_partition __initdata ek_nand_partition[] = {
166	{
167		.name	= "Partition 1",
168		.offset	= 0,
169		.size	= SZ_256K,
170	},
171	{
172		.name	= "Partition 2",
173		.offset	= MTDPART_OFS_NXTBLK,
174		.size	= MTDPART_SIZ_FULL,
175	},
176};
177
178static struct atmel_nand_data __initdata ek_nand_data = {
179	.ale		= 21,
180	.cle		= 22,
181	.det_pin	= -EINVAL,
182	.rdy_pin	= AT91_PIN_PC13,
183	.enable_pin	= AT91_PIN_PC14,
184	.ecc_mode	= NAND_ECC_SOFT,
185	.on_flash_bbt	= 1,
186	.parts		= ek_nand_partition,
187	.num_parts	= ARRAY_SIZE(ek_nand_partition),
188};
189
190static struct sam9_smc_config __initdata ek_nand_smc_config = {
191	.ncs_read_setup		= 0,
192	.nrd_setup		= 1,
193	.ncs_write_setup	= 0,
194	.nwe_setup		= 1,
195
196	.ncs_read_pulse		= 3,
197	.nrd_pulse		= 3,
198	.ncs_write_pulse	= 3,
199	.nwe_pulse		= 3,
200
201	.read_cycle		= 5,
202	.write_cycle		= 5,
203
204	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
205	.tdf_cycles		= 2,
206};
207
208static void __init ek_add_device_nand(void)
209{
210	ek_nand_data.bus_width_16 = board_have_nand_16bit();
211	/* setup bus-width (8 or 16) */
212	if (ek_nand_data.bus_width_16)
213		ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
214	else
215		ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
216
217	/* configure chip-select 3 (NAND) */
218	sam9_smc_configure(0, 3, &ek_nand_smc_config);
219
220	at91_add_device_nand(&ek_nand_data);
221}
222
223
224/*
225 * MCI (SD/MMC)
226 */
227static struct at91_mmc_data __initdata ek_mmc_data = {
228	.slot_b		= 1,
229	.wire4		= 1,
230	.det_pin	= -EINVAL,
231	.wp_pin		= -EINVAL,
232	.vcc_pin	= -EINVAL,
233};
234
235
236/*
237 * LEDs
238 */
239static struct gpio_led ek_leds[] = {
240	{	/* "bottom" led, green, userled1 to be defined */
241		.name			= "ds5",
242		.gpio			= AT91_PIN_PA6,
243		.active_low		= 1,
244		.default_trigger	= "none",
245	},
246	{	/* "power" led, yellow */
247		.name			= "ds1",
248		.gpio			= AT91_PIN_PA9,
249		.default_trigger	= "heartbeat",
250	}
251};
252
253/*
254 * I2C devices
255 */
256static struct at24_platform_data at24c512 = {
257	.byte_len	= SZ_512K / 8,
258	.page_size	= 128,
259	.flags		= AT24_FLAG_ADDR16,
260};
261
262static struct i2c_board_info __initdata ek_i2c_devices[] = {
263	{
264		I2C_BOARD_INFO("24c512", 0x50),
265		.platform_data = &at24c512,
266	},
267	/* more devices can be added using expansion connectors */
268};
269
270
271/*
272 * GPIO Buttons
273 */
274#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
275static struct gpio_keys_button ek_buttons[] = {
276	{
277		.gpio		= AT91_PIN_PA30,
278		.code		= BTN_3,
279		.desc		= "Button 3",
280		.active_low	= 1,
281		.wakeup		= 1,
282	},
283	{
284		.gpio		= AT91_PIN_PA31,
285		.code		= BTN_4,
286		.desc		= "Button 4",
287		.active_low	= 1,
288		.wakeup		= 1,
289	}
290};
291
292static struct gpio_keys_platform_data ek_button_data = {
293	.buttons	= ek_buttons,
294	.nbuttons	= ARRAY_SIZE(ek_buttons),
295};
296
297static struct platform_device ek_button_device = {
298	.name		= "gpio-keys",
299	.id		= -1,
300	.num_resources	= 0,
301	.dev		= {
302		.platform_data	= &ek_button_data,
303	}
304};
305
306static void __init ek_add_device_buttons(void)
307{
308	at91_set_gpio_input(AT91_PIN_PA30, 1);	/* btn3 */
309	at91_set_deglitch(AT91_PIN_PA30, 1);
310	at91_set_gpio_input(AT91_PIN_PA31, 1);	/* btn4 */
311	at91_set_deglitch(AT91_PIN_PA31, 1);
312
313	platform_device_register(&ek_button_device);
314}
315#else
316static void __init ek_add_device_buttons(void) {}
317#endif
318
319
320static void __init ek_board_init(void)
321{
322	/* Serial */
323	at91_add_device_serial();
324	/* USB Host */
325	at91_add_device_usbh(&ek_usbh_data);
326	/* USB Device */
327	at91_add_device_udc(&ek_udc_data);
328	/* SPI */
329	at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
330	/* NAND */
331	ek_add_device_nand();
332	/* Ethernet */
333	at91_add_device_eth(&ek_macb_data);
334	/* MMC */
335	at91_add_device_mmc(0, &ek_mmc_data);
336	/* I2C */
337	at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
338	/* SSC (to AT73C213) */
339	at73c213_set_clk(&at73c213_data);
340	at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
341	/* LEDs */
342	at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
343	/* Push Buttons */
344	ek_add_device_buttons();
345}
346
347MACHINE_START(AT91SAM9260EK, "Atmel AT91SAM9260-EK")
348	/* Maintainer: Atmel */
349	.timer		= &at91sam926x_timer,
350	.map_io		= at91_map_io,
351	.init_early	= ek_init_early,
352	.init_irq	= at91_init_irq_default,
353	.init_machine	= ek_board_init,
354MACHINE_END
355