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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>
21#include <linux/init.h>
22#include <linux/mm.h>
23#include <linux/module.h>
24#include <linux/platform_device.h>
25#include <linux/spi/spi.h>
26#include <linux/spi/at73c213.h>
Nicolas Ferre59c5fe62009-06-29 12:11:50 +010027#include <linux/gpio_keys.h>
28#include <linux/input.h>
sedji gaouaou61352662008-07-10 10:15:35 +010029#include <linux/clk.h>
30
Russell Kinga09e64f2008-08-05 16:14:15 +010031#include <mach/hardware.h>
sedji gaouaou61352662008-07-10 10:15:35 +010032#include <asm/setup.h>
33#include <asm/mach-types.h>
34#include <asm/irq.h>
35
36#include <asm/mach/arch.h>
37#include <asm/mach/map.h>
38#include <asm/mach/irq.h>
39
Russell Kinga09e64f2008-08-05 16:14:15 +010040#include <mach/board.h>
41#include <mach/gpio.h>
Andrew Victor8cdae512008-10-06 20:05:35 +010042#include <mach/at91sam9_smc.h>
sedji gaouaou61352662008-07-10 10:15:35 +010043
Andrew Victor8cdae512008-10-06 20:05:35 +010044#include "sam9_smc.h"
sedji gaouaou61352662008-07-10 10:15:35 +010045#include "generic.h"
46
47
48static void __init ek_map_io(void)
49{
50 /* Initialize processor: 18.432 MHz crystal */
51 at91sam9260_initialize(18432000);
52
53 /* DGBU on ttyS0. (Rx & Tx only) */
54 at91_register_uart(0, 0, 0);
55
56 /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
57 at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
58 | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
59 | ATMEL_UART_RI);
60
61 /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
62 at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
63
64 /* set serial console to ttyS0 (ie, DBGU) */
65 at91_set_serial_console(0);
66}
67
68static void __init ek_init_irq(void)
69{
70 at91sam9260_init_interrupts(NULL);
71}
72
73
74/*
75 * USB Host port
76 */
77static struct at91_usbh_data __initdata ek_usbh_data = {
78 .ports = 2,
79};
80
81/*
82 * USB Device port
83 */
84static struct at91_udc_data __initdata ek_udc_data = {
85 .vbus_pin = AT91_PIN_PC5,
86 .pullup_pin = 0, /* pull-up driven by UDC */
87};
88
89
90/*
91 * SPI devices.
92 */
93static struct spi_board_info ek_spi_devices[] = {
94#if !defined(CONFIG_MMC_AT91)
95 { /* DataFlash chip */
96 .modalias = "mtd_dataflash",
97 .chip_select = 1,
98 .max_speed_hz = 15 * 1000 * 1000,
99 .bus_num = 0,
100 },
101#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
102 { /* DataFlash card */
103 .modalias = "mtd_dataflash",
104 .chip_select = 0,
105 .max_speed_hz = 15 * 1000 * 1000,
106 .bus_num = 0,
107 },
108#endif
109#endif
110};
111
112
113/*
114 * MACB Ethernet device
115 */
116static struct at91_eth_data __initdata ek_macb_data = {
117 .phy_irq_pin = AT91_PIN_PA7,
118 .is_rmii = 1,
119};
120
121
122/*
123 * NAND flash
124 */
125static struct mtd_partition __initdata ek_nand_partition[] = {
126 {
127 .name = "Bootstrap",
128 .offset = 0,
Andrew Victore5052402008-09-21 21:30:02 +0100129 .size = 4 * SZ_1M,
sedji gaouaou61352662008-07-10 10:15:35 +0100130 },
131 {
132 .name = "Partition 1",
Andrew Victore5052402008-09-21 21:30:02 +0100133 .offset = MTDPART_OFS_NXTBLK,
134 .size = 60 * SZ_1M,
sedji gaouaou61352662008-07-10 10:15:35 +0100135 },
136 {
137 .name = "Partition 2",
Andrew Victore5052402008-09-21 21:30:02 +0100138 .offset = MTDPART_OFS_NXTBLK,
sedji gaouaou61352662008-07-10 10:15:35 +0100139 .size = MTDPART_SIZ_FULL,
140 },
141};
142
143static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
144{
145 *num_partitions = ARRAY_SIZE(ek_nand_partition);
146 return ek_nand_partition;
147}
148
149/* det_pin is not connected */
Haavard Skinnemoen7c896832008-07-28 16:57:22 +0100150static struct atmel_nand_data __initdata ek_nand_data = {
sedji gaouaou61352662008-07-10 10:15:35 +0100151 .ale = 21,
152 .cle = 22,
153 .rdy_pin = AT91_PIN_PC13,
154 .enable_pin = AT91_PIN_PC14,
155 .partition_info = nand_partitions,
Pieter du Preezf6ed6f72008-08-01 10:06:40 +0100156#if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
sedji gaouaou61352662008-07-10 10:15:35 +0100157 .bus_width_16 = 1,
158#else
159 .bus_width_16 = 0,
160#endif
161};
162
Andrew Victor8cdae512008-10-06 20:05:35 +0100163static struct sam9_smc_config __initdata ek_nand_smc_config = {
164 .ncs_read_setup = 0,
165 .nrd_setup = 2,
166 .ncs_write_setup = 0,
167 .nwe_setup = 2,
168
169 .ncs_read_pulse = 4,
170 .nrd_pulse = 4,
171 .ncs_write_pulse = 4,
172 .nwe_pulse = 4,
173
174 .read_cycle = 7,
175 .write_cycle = 7,
176
177 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
178 .tdf_cycles = 3,
179};
180
181static void __init ek_add_device_nand(void)
182{
183 /* setup bus-width (8 or 16) */
184 if (ek_nand_data.bus_width_16)
185 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
186 else
187 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
188
189 /* configure chip-select 3 (NAND) */
190 sam9_smc_configure(3, &ek_nand_smc_config);
191
192 at91_add_device_nand(&ek_nand_data);
193}
194
sedji gaouaou61352662008-07-10 10:15:35 +0100195
196/*
197 * MCI (SD/MMC)
198 * det_pin, wp_pin and vcc_pin are not connected
199 */
200static struct at91_mmc_data __initdata ek_mmc_data = {
201 .slot_b = 1,
202 .wire4 = 1,
203};
204
205
206/*
207 * LEDs
208 */
209static struct gpio_led ek_leds[] = {
210 { /* "bottom" led, green, userled1 to be defined */
211 .name = "ds5",
212 .gpio = AT91_PIN_PA6,
213 .active_low = 1,
214 .default_trigger = "none",
215 },
216 { /* "power" led, yellow */
217 .name = "ds1",
218 .gpio = AT91_PIN_PA9,
219 .default_trigger = "heartbeat",
220 }
221};
222
Nicolas Ferre59c5fe62009-06-29 12:11:50 +0100223
224/*
225 * GPIO Buttons
226 */
227#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
228static struct gpio_keys_button ek_buttons[] = {
229 {
230 .gpio = AT91_PIN_PA30,
231 .code = BTN_3,
232 .desc = "Button 3",
233 .active_low = 1,
234 .wakeup = 1,
235 },
236 {
237 .gpio = AT91_PIN_PA31,
238 .code = BTN_4,
239 .desc = "Button 4",
240 .active_low = 1,
241 .wakeup = 1,
242 }
243};
244
245static struct gpio_keys_platform_data ek_button_data = {
246 .buttons = ek_buttons,
247 .nbuttons = ARRAY_SIZE(ek_buttons),
248};
249
250static struct platform_device ek_button_device = {
251 .name = "gpio-keys",
252 .id = -1,
253 .num_resources = 0,
254 .dev = {
255 .platform_data = &ek_button_data,
256 }
257};
258
259static void __init ek_add_device_buttons(void)
260{
261 at91_set_gpio_input(AT91_PIN_PA30, 1); /* btn3 */
262 at91_set_deglitch(AT91_PIN_PA30, 1);
263 at91_set_gpio_input(AT91_PIN_PA31, 1); /* btn4 */
264 at91_set_deglitch(AT91_PIN_PA31, 1);
265
266 platform_device_register(&ek_button_device);
267}
268#else
269static void __init ek_add_device_buttons(void) {}
270#endif
271
272
Dmitry Baryshkov6953e472009-05-25 08:02:35 +0100273static struct i2c_board_info __initdata ek_i2c_devices[] = {
274 {
275 I2C_BOARD_INFO("24c512", 0x50),
Mark Brownd7dbf6e2009-07-08 21:12:20 +0100276 I2C_BOARD_INFO("wm8731", 0x1b),
Dmitry Baryshkov6953e472009-05-25 08:02:35 +0100277 },
278};
279
280
sedji gaouaou61352662008-07-10 10:15:35 +0100281static void __init ek_board_init(void)
282{
283 /* Serial */
284 at91_add_device_serial();
285 /* USB Host */
286 at91_add_device_usbh(&ek_usbh_data);
287 /* USB Device */
288 at91_add_device_udc(&ek_udc_data);
289 /* SPI */
290 at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
291 /* NAND */
Andrew Victor8cdae512008-10-06 20:05:35 +0100292 ek_add_device_nand();
sedji gaouaou61352662008-07-10 10:15:35 +0100293 /* Ethernet */
294 at91_add_device_eth(&ek_macb_data);
295 /* MMC */
296 at91_add_device_mmc(0, &ek_mmc_data);
297 /* I2C */
Dmitry Baryshkov6953e472009-05-25 08:02:35 +0100298 at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
sedji gaouaou61352662008-07-10 10:15:35 +0100299 /* LEDs */
300 at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
Nicolas Ferre59c5fe62009-06-29 12:11:50 +0100301 /* Push Buttons */
302 ek_add_device_buttons();
Mark Brown423145a52009-02-16 20:39:19 +0100303 /* PCK0 provides MCLK to the WM8731 */
304 at91_set_B_periph(AT91_PIN_PC1, 0);
305 /* SSC (for WM8731) */
306 at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
sedji gaouaou61352662008-07-10 10:15:35 +0100307}
308
309MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK")
310 /* Maintainer: Atmel */
311 .phys_io = AT91_BASE_SYS,
312 .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
313 .boot_params = AT91_SDRAM_BASE + 0x100,
314 .timer = &at91sam926x_timer,
315 .map_io = ek_map_io,
316 .init_irq = ek_init_irq,
317 .init_machine = ek_board_init,
318MACHINE_END