]> git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blob - arch/arm/mach-at91/board-stamp9g20.c
Merge tag 'at91-for-next-soc' of git://github.com/at91linux/linux-at91 into at91/mci
[mirror_ubuntu-zesty-kernel.git] / arch / arm / mach-at91 / board-stamp9g20.c
1 /*
2 * Copyright (C) 2010 Christian Glindkamp <christian.glindkamp@taskit.de>
3 * taskit GmbH
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/mm.h>
21 #include <linux/platform_device.h>
22 #include <linux/gpio.h>
23 #include <linux/w1-gpio.h>
24
25 #include <asm/mach-types.h>
26 #include <asm/mach/arch.h>
27
28 #include <mach/board.h>
29 #include <mach/at91_aic.h>
30 #include <mach/at91sam9_smc.h>
31
32 #include "sam9_smc.h"
33 #include "generic.h"
34
35
36 void __init stamp9g20_init_early(void)
37 {
38 /* Initialize processor: 18.432 MHz crystal */
39 at91_initialize(18432000);
40 }
41
42 /*
43 * NAND flash
44 */
45 static struct atmel_nand_data __initdata nand_data = {
46 .ale = 21,
47 .cle = 22,
48 .rdy_pin = AT91_PIN_PC13,
49 .enable_pin = AT91_PIN_PC14,
50 .bus_width_16 = 0,
51 .det_pin = -EINVAL,
52 .ecc_mode = NAND_ECC_SOFT,
53 };
54
55 static struct sam9_smc_config __initdata nand_smc_config = {
56 .ncs_read_setup = 0,
57 .nrd_setup = 2,
58 .ncs_write_setup = 0,
59 .nwe_setup = 2,
60
61 .ncs_read_pulse = 4,
62 .nrd_pulse = 4,
63 .ncs_write_pulse = 4,
64 .nwe_pulse = 4,
65
66 .read_cycle = 7,
67 .write_cycle = 7,
68
69 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
70 .tdf_cycles = 3,
71 };
72
73 static void __init add_device_nand(void)
74 {
75 /* configure chip-select 3 (NAND) */
76 sam9_smc_configure(0, 3, &nand_smc_config);
77
78 at91_add_device_nand(&nand_data);
79 }
80
81
82 /*
83 * MCI (SD/MMC)
84 * det_pin, wp_pin and vcc_pin are not connected
85 */
86 static struct mci_platform_data __initdata mmc_data = {
87 .slot[0] = {
88 .bus_width = 4,
89 .detect_pin = -1,
90 .wp_pin = -1,
91 },
92 };
93
94
95 /*
96 * USB Host port
97 */
98 static struct at91_usbh_data __initdata usbh_data = {
99 .ports = 2,
100 .vbus_pin = {-EINVAL, -EINVAL},
101 .overcurrent_pin= {-EINVAL, -EINVAL},
102 };
103
104
105 /*
106 * USB Device port
107 */
108 static struct at91_udc_data __initdata portuxg20_udc_data = {
109 .vbus_pin = AT91_PIN_PC7,
110 .pullup_pin = -EINVAL, /* pull-up driven by UDC */
111 };
112
113 static struct at91_udc_data __initdata stamp9g20evb_udc_data = {
114 .vbus_pin = AT91_PIN_PA22,
115 .pullup_pin = -EINVAL, /* pull-up driven by UDC */
116 };
117
118
119 /*
120 * MACB Ethernet device
121 */
122 static struct macb_platform_data __initdata macb_data = {
123 .phy_irq_pin = AT91_PIN_PA28,
124 .is_rmii = 1,
125 };
126
127
128 /*
129 * LEDs
130 */
131 static struct gpio_led portuxg20_leds[] = {
132 {
133 .name = "LED2",
134 .gpio = AT91_PIN_PC5,
135 .default_trigger = "none",
136 }, {
137 .name = "LED3",
138 .gpio = AT91_PIN_PC4,
139 .default_trigger = "none",
140 }, {
141 .name = "LED4",
142 .gpio = AT91_PIN_PC10,
143 .default_trigger = "heartbeat",
144 }
145 };
146
147 static struct gpio_led stamp9g20evb_leds[] = {
148 {
149 .name = "D8",
150 .gpio = AT91_PIN_PB18,
151 .active_low = 1,
152 .default_trigger = "none",
153 }, {
154 .name = "D9",
155 .gpio = AT91_PIN_PB19,
156 .active_low = 1,
157 .default_trigger = "none",
158 }, {
159 .name = "D10",
160 .gpio = AT91_PIN_PB20,
161 .active_low = 1,
162 .default_trigger = "heartbeat",
163 }
164 };
165
166
167 /*
168 * SPI devices
169 */
170 static struct spi_board_info portuxg20_spi_devices[] = {
171 {
172 .modalias = "spidev",
173 .chip_select = 0,
174 .max_speed_hz = 1 * 1000 * 1000,
175 .bus_num = 0,
176 }, {
177 .modalias = "spidev",
178 .chip_select = 0,
179 .max_speed_hz = 1 * 1000 * 1000,
180 .bus_num = 1,
181 },
182 };
183
184
185 /*
186 * Dallas 1-Wire
187 */
188 static struct w1_gpio_platform_data w1_gpio_pdata = {
189 .pin = AT91_PIN_PA29,
190 .is_open_drain = 1,
191 };
192
193 static struct platform_device w1_device = {
194 .name = "w1-gpio",
195 .id = -1,
196 .dev.platform_data = &w1_gpio_pdata,
197 };
198
199 void add_w1(void)
200 {
201 at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
202 at91_set_multi_drive(w1_gpio_pdata.pin, 1);
203 platform_device_register(&w1_device);
204 }
205
206
207 void __init stamp9g20_board_init(void)
208 {
209 /* Serial */
210 /* DGBU on ttyS0. (Rx & Tx only) */
211 at91_register_uart(0, 0, 0);
212 at91_add_device_serial();
213 /* NAND */
214 add_device_nand();
215 /* MMC */
216 at91_add_device_mci(0, &mmc_data);
217 /* W1 */
218 add_w1();
219 }
220
221 static void __init portuxg20_board_init(void)
222 {
223 /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
224 at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
225 | ATMEL_UART_DTR | ATMEL_UART_DSR
226 | ATMEL_UART_DCD | ATMEL_UART_RI);
227
228 /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) */
229 at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
230
231 /* USART2 on ttyS3. (Rx, Tx, CTS, RTS) */
232 at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS | ATMEL_UART_RTS);
233
234 /* USART4 on ttyS5. (Rx, Tx only) */
235 at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
236
237 /* USART5 on ttyS6. (Rx, Tx only) */
238 at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
239 stamp9g20_board_init();
240 /* USB Host */
241 at91_add_device_usbh(&usbh_data);
242 /* USB Device */
243 at91_add_device_udc(&portuxg20_udc_data);
244 /* Ethernet */
245 at91_add_device_eth(&macb_data);
246 /* I2C */
247 at91_add_device_i2c(NULL, 0);
248 /* SPI */
249 at91_add_device_spi(portuxg20_spi_devices, ARRAY_SIZE(portuxg20_spi_devices));
250 /* LEDs */
251 at91_gpio_leds(portuxg20_leds, ARRAY_SIZE(portuxg20_leds));
252 }
253
254 static void __init stamp9g20evb_board_init(void)
255 {
256 /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
257 at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
258 | ATMEL_UART_DTR | ATMEL_UART_DSR
259 | ATMEL_UART_DCD | ATMEL_UART_RI);
260 stamp9g20_board_init();
261 /* USB Host */
262 at91_add_device_usbh(&usbh_data);
263 /* USB Device */
264 at91_add_device_udc(&stamp9g20evb_udc_data);
265 /* Ethernet */
266 at91_add_device_eth(&macb_data);
267 /* I2C */
268 at91_add_device_i2c(NULL, 0);
269 /* LEDs */
270 at91_gpio_leds(stamp9g20evb_leds, ARRAY_SIZE(stamp9g20evb_leds));
271 }
272
273 MACHINE_START(PORTUXG20, "taskit PortuxG20")
274 /* Maintainer: taskit GmbH */
275 .timer = &at91sam926x_timer,
276 .map_io = at91_map_io,
277 .handle_irq = at91_aic_handle_irq,
278 .init_early = stamp9g20_init_early,
279 .init_irq = at91_init_irq_default,
280 .init_machine = portuxg20_board_init,
281 MACHINE_END
282
283 MACHINE_START(STAMP9G20, "taskit Stamp9G20")
284 /* Maintainer: taskit GmbH */
285 .timer = &at91sam926x_timer,
286 .map_io = at91_map_io,
287 .handle_irq = at91_aic_handle_irq,
288 .init_early = stamp9g20_init_early,
289 .init_irq = at91_init_irq_default,
290 .init_machine = stamp9g20evb_board_init,
291 MACHINE_END