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
 59/*
 60 * USB Host port
 61 */
 62static struct at91_usbh_data __initdata ek_usbh_data = {
 63	.ports		= 2,
 64	.vbus_pin	= {-EINVAL, -EINVAL},
 65	.overcurrent_pin= {-EINVAL, -EINVAL},
 66};
 67
 68/*
 69 * USB Device port
 70 */
 71static struct at91_udc_data __initdata ek_udc_data = {
 72	.vbus_pin	= AT91_PIN_PC5,
 73	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
 74};
 75
 76
 77/*
 78 * Audio
 79 */
 80static struct at73c213_board_info at73c213_data = {
 81	.ssc_id		= 0,
 82	.shortname	= "AT91SAM9260-EK external DAC",
 83};
 84
 85#if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
 86static void __init at73c213_set_clk(struct at73c213_board_info *info)
 87{
 88	struct clk *pck0;
 89	struct clk *plla;
 90
 91	pck0 = clk_get(NULL, "pck0");
 92	plla = clk_get(NULL, "plla");
 93
 94	/* AT73C213 MCK Clock */
 95	at91_set_B_periph(AT91_PIN_PC1, 0);	/* PCK0 */
 96
 97	clk_set_parent(pck0, plla);
 98	clk_put(plla);
 99
100	info->dac_clk = pck0;
101}
102#else
103static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
104#endif
105
106/*
107 * SPI devices.
108 */
109static struct spi_board_info ek_spi_devices[] = {
110#if !defined(CONFIG_MMC_AT91)
111	{	/* DataFlash chip */
112		.modalias	= "mtd_dataflash",
113		.chip_select	= 1,
114		.max_speed_hz	= 15 * 1000 * 1000,
115		.bus_num	= 0,
116	},
117#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
118	{	/* DataFlash card */
119		.modalias	= "mtd_dataflash",
120		.chip_select	= 0,
121		.max_speed_hz	= 15 * 1000 * 1000,
122		.bus_num	= 0,
123	},
124#endif
125#endif
126#if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
127	{	/* AT73C213 DAC */
128		.modalias	= "at73c213",
129		.chip_select	= 0,
130		.max_speed_hz	= 10 * 1000 * 1000,
131		.bus_num	= 1,
132		.mode		= SPI_MODE_1,
133		.platform_data	= &at73c213_data,
134	},
135#endif
136};
137
138
139/*
140 * MACB Ethernet device
141 */
142static struct macb_platform_data __initdata ek_macb_data = {
143	.phy_irq_pin	= AT91_PIN_PA7,
144	.is_rmii	= 1,
145};
146
147
148/*
149 * NAND flash
150 */
151static struct mtd_partition __initdata ek_nand_partition[] = {
152	{
153		.name	= "Partition 1",
154		.offset	= 0,
155		.size	= SZ_256K,
156	},
157	{
158		.name	= "Partition 2",
159		.offset	= MTDPART_OFS_NXTBLK,
160		.size	= MTDPART_SIZ_FULL,
161	},
162};
163
164static struct atmel_nand_data __initdata ek_nand_data = {
165	.ale		= 21,
166	.cle		= 22,
167	.det_pin	= -EINVAL,
168	.rdy_pin	= AT91_PIN_PC13,
169	.enable_pin	= AT91_PIN_PC14,
170	.ecc_mode	= NAND_ECC_SOFT,
171	.on_flash_bbt	= 1,
172	.parts		= ek_nand_partition,
173	.num_parts	= ARRAY_SIZE(ek_nand_partition),
174};
175
176static struct sam9_smc_config __initdata ek_nand_smc_config = {
177	.ncs_read_setup		= 0,
178	.nrd_setup		= 1,
179	.ncs_write_setup	= 0,
180	.nwe_setup		= 1,
181
182	.ncs_read_pulse		= 3,
183	.nrd_pulse		= 3,
184	.ncs_write_pulse	= 3,
185	.nwe_pulse		= 3,
186
187	.read_cycle		= 5,
188	.write_cycle		= 5,
189
190	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
191	.tdf_cycles		= 2,
192};
193
194static void __init ek_add_device_nand(void)
195{
196	ek_nand_data.bus_width_16 = board_have_nand_16bit();
197	/* setup bus-width (8 or 16) */
198	if (ek_nand_data.bus_width_16)
199		ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
200	else
201		ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
202
203	/* configure chip-select 3 (NAND) */
204	sam9_smc_configure(0, 3, &ek_nand_smc_config);
205
206	at91_add_device_nand(&ek_nand_data);
207}
208
209
210/*
211 * MCI (SD/MMC)
212 */
213static struct at91_mmc_data __initdata ek_mmc_data = {
214	.slot_b		= 1,
215	.wire4		= 1,
216	.det_pin	= -EINVAL,
217	.wp_pin		= -EINVAL,
218	.vcc_pin	= -EINVAL,
219};
220
221
222/*
223 * LEDs
224 */
225static struct gpio_led ek_leds[] = {
226	{	/* "bottom" led, green, userled1 to be defined */
227		.name			= "ds5",
228		.gpio			= AT91_PIN_PA6,
229		.active_low		= 1,
230		.default_trigger	= "none",
231	},
232	{	/* "power" led, yellow */
233		.name			= "ds1",
234		.gpio			= AT91_PIN_PA9,
235		.default_trigger	= "heartbeat",
236	}
237};
238
239/*
240 * I2C devices
241 */
242static struct at24_platform_data at24c512 = {
243	.byte_len	= SZ_512K / 8,
244	.page_size	= 128,
245	.flags		= AT24_FLAG_ADDR16,
246};
247
248static struct i2c_board_info __initdata ek_i2c_devices[] = {
249	{
250		I2C_BOARD_INFO("24c512", 0x50),
251		.platform_data = &at24c512,
252	},
253	/* more devices can be added using expansion connectors */
254};
255
256
257/*
258 * GPIO Buttons
259 */
260#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
261static struct gpio_keys_button ek_buttons[] = {
262	{
263		.gpio		= AT91_PIN_PA30,
264		.code		= BTN_3,
265		.desc		= "Button 3",
266		.active_low	= 1,
267		.wakeup		= 1,
268	},
269	{
270		.gpio		= AT91_PIN_PA31,
271		.code		= BTN_4,
272		.desc		= "Button 4",
273		.active_low	= 1,
274		.wakeup		= 1,
275	}
276};
277
278static struct gpio_keys_platform_data ek_button_data = {
279	.buttons	= ek_buttons,
280	.nbuttons	= ARRAY_SIZE(ek_buttons),
281};
282
283static struct platform_device ek_button_device = {
284	.name		= "gpio-keys",
285	.id		= -1,
286	.num_resources	= 0,
287	.dev		= {
288		.platform_data	= &ek_button_data,
289	}
290};
291
292static void __init ek_add_device_buttons(void)
293{
294	at91_set_gpio_input(AT91_PIN_PA30, 1);	/* btn3 */
295	at91_set_deglitch(AT91_PIN_PA30, 1);
296	at91_set_gpio_input(AT91_PIN_PA31, 1);	/* btn4 */
297	at91_set_deglitch(AT91_PIN_PA31, 1);
298
299	platform_device_register(&ek_button_device);
300}
301#else
302static void __init ek_add_device_buttons(void) {}
303#endif
304
305
306static void __init ek_board_init(void)
307{
308	/* Serial */
309	/* DBGU on ttyS0. (Rx & Tx only) */
310	at91_register_uart(0, 0, 0);
311
312	/* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
313	at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
314			   | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
315			   | ATMEL_UART_RI);
316
317	/* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
318	at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
319	at91_add_device_serial();
320	/* USB Host */
321	at91_add_device_usbh(&ek_usbh_data);
322	/* USB Device */
323	at91_add_device_udc(&ek_udc_data);
324	/* SPI */
325	at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
326	/* NAND */
327	ek_add_device_nand();
328	/* Ethernet */
329	at91_add_device_eth(&ek_macb_data);
330	/* MMC */
331	at91_add_device_mmc(0, &ek_mmc_data);
332	/* I2C */
333	at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
334	/* SSC (to AT73C213) */
335	at73c213_set_clk(&at73c213_data);
336	at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
337	/* LEDs */
338	at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
339	/* Push Buttons */
340	ek_add_device_buttons();
341}
342
343MACHINE_START(AT91SAM9260EK, "Atmel AT91SAM9260-EK")
344	/* Maintainer: Atmel */
345	.timer		= &at91sam926x_timer,
346	.map_io		= at91_map_io,
347	.init_early	= ek_init_early,
348	.init_irq	= at91_init_irq_default,
349	.init_machine	= ek_board_init,
350MACHINE_END