1 /*
2 * linux/arch/arm/mach-at91/board-csb337.c
3 *
4 * Copyright (C) 2005 SAN People
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21 #include <linux/types.h>
22 #include <linux/gpio.h>
23 #include <linux/init.h>
24 #include <linux/mm.h>
25 #include <linux/module.h>
26 #include <linux/platform_device.h>
27 #include <linux/spi/spi.h>
28 #include <linux/mtd/physmap.h>
29 #include <linux/input.h>
30 #include <linux/gpio_keys.h>
31
32 #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
40 #include <mach/hardware.h>
41 #include <mach/board.h>
42
43 #include "generic.h"
44
45
csb337_init_early(void)46 static void __init csb337_init_early(void)
47 {
48 /* Initialize processor: 3.6864 MHz crystal */
49 at91_initialize(3686400);
50
51 /* Setup the LEDs */
52 at91_init_leds(AT91_PIN_PB0, AT91_PIN_PB1);
53
54 /* DBGU on ttyS0 */
55 at91_register_uart(0, 0, 0);
56
57 /* make console=ttyS0 the default */
58 at91_set_serial_console(0);
59 }
60
61 static struct macb_platform_data __initdata csb337_eth_data = {
62 .phy_irq_pin = AT91_PIN_PC2,
63 .is_rmii = 0,
64 };
65
66 static struct at91_usbh_data __initdata csb337_usbh_data = {
67 .ports = 2,
68 .vbus_pin = {-EINVAL, -EINVAL},
69 .overcurrent_pin= {-EINVAL, -EINVAL},
70 };
71
72 static struct at91_udc_data __initdata csb337_udc_data = {
73 .pullup_pin = AT91_PIN_PA24,
74 .vbus_pin = -EINVAL,
75 };
76
77 static struct i2c_board_info __initdata csb337_i2c_devices[] = {
78 {
79 I2C_BOARD_INFO("ds1307", 0x68),
80 },
81 };
82
83 static struct at91_cf_data __initdata csb337_cf_data = {
84 /*
85 * connector P4 on the CSB 337 mates to
86 * connector P8 on the CSB 300CF
87 */
88
89 /* CSB337 specific */
90 .det_pin = AT91_PIN_PC3,
91
92 /* CSB300CF specific */
93 .irq_pin = AT91_PIN_PA19,
94 .vcc_pin = AT91_PIN_PD0,
95 .rst_pin = AT91_PIN_PD2,
96 };
97
98 static struct at91_mmc_data __initdata csb337_mmc_data = {
99 .det_pin = AT91_PIN_PD5,
100 .slot_b = 0,
101 .wire4 = 1,
102 .wp_pin = AT91_PIN_PD6,
103 .vcc_pin = -EINVAL,
104 };
105
106 static struct spi_board_info csb337_spi_devices[] = {
107 { /* CAN controller */
108 .modalias = "sak82c900",
109 .chip_select = 0,
110 .max_speed_hz = 6 * 1000 * 1000,
111 },
112 };
113
114 #define CSB_FLASH_BASE AT91_CHIPSELECT_0
115 #define CSB_FLASH_SIZE SZ_8M
116
117 static struct mtd_partition csb_flash_partitions[] = {
118 {
119 .name = "uMON flash",
120 .offset = 0,
121 .size = MTDPART_SIZ_FULL,
122 .mask_flags = MTD_WRITEABLE, /* read only */
123 }
124 };
125
126 static struct physmap_flash_data csb_flash_data = {
127 .width = 2,
128 .parts = csb_flash_partitions,
129 .nr_parts = ARRAY_SIZE(csb_flash_partitions),
130 };
131
132 static struct resource csb_flash_resources[] = {
133 {
134 .start = CSB_FLASH_BASE,
135 .end = CSB_FLASH_BASE + CSB_FLASH_SIZE - 1,
136 .flags = IORESOURCE_MEM,
137 }
138 };
139
140 static struct platform_device csb_flash = {
141 .name = "physmap-flash",
142 .id = 0,
143 .dev = {
144 .platform_data = &csb_flash_data,
145 },
146 .resource = csb_flash_resources,
147 .num_resources = ARRAY_SIZE(csb_flash_resources),
148 };
149
150 /*
151 * GPIO Buttons (on CSB300)
152 */
153 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
154 static struct gpio_keys_button csb300_buttons[] = {
155 {
156 .gpio = AT91_PIN_PB29,
157 .code = BTN_0,
158 .desc = "sw0",
159 .active_low = 1,
160 .wakeup = 1,
161 },
162 {
163 .gpio = AT91_PIN_PB28,
164 .code = BTN_1,
165 .desc = "sw1",
166 .active_low = 1,
167 .wakeup = 1,
168 },
169 {
170 .gpio = AT91_PIN_PA21,
171 .code = BTN_2,
172 .desc = "sw2",
173 .active_low = 1,
174 .wakeup = 1,
175 }
176 };
177
178 static struct gpio_keys_platform_data csb300_button_data = {
179 .buttons = csb300_buttons,
180 .nbuttons = ARRAY_SIZE(csb300_buttons),
181 };
182
183 static struct platform_device csb300_button_device = {
184 .name = "gpio-keys",
185 .id = -1,
186 .num_resources = 0,
187 .dev = {
188 .platform_data = &csb300_button_data,
189 }
190 };
191
csb300_add_device_buttons(void)192 static void __init csb300_add_device_buttons(void)
193 {
194 at91_set_gpio_input(AT91_PIN_PB29, 1); /* sw0 */
195 at91_set_deglitch(AT91_PIN_PB29, 1);
196 at91_set_gpio_input(AT91_PIN_PB28, 1); /* sw1 */
197 at91_set_deglitch(AT91_PIN_PB28, 1);
198 at91_set_gpio_input(AT91_PIN_PA21, 1); /* sw2 */
199 at91_set_deglitch(AT91_PIN_PA21, 1);
200
201 platform_device_register(&csb300_button_device);
202 }
203 #else
csb300_add_device_buttons(void)204 static void __init csb300_add_device_buttons(void) {}
205 #endif
206
207 static struct gpio_led csb_leds[] = {
208 { /* "led0", yellow */
209 .name = "led0",
210 .gpio = AT91_PIN_PB2,
211 .active_low = 1,
212 .default_trigger = "heartbeat",
213 },
214 { /* "led1", green */
215 .name = "led1",
216 .gpio = AT91_PIN_PB1,
217 .active_low = 1,
218 .default_trigger = "mmc0",
219 },
220 { /* "led2", yellow */
221 .name = "led2",
222 .gpio = AT91_PIN_PB0,
223 .active_low = 1,
224 .default_trigger = "ide-disk",
225 }
226 };
227
228
csb337_board_init(void)229 static void __init csb337_board_init(void)
230 {
231 /* Serial */
232 at91_add_device_serial();
233 /* Ethernet */
234 at91_add_device_eth(&csb337_eth_data);
235 /* USB Host */
236 at91_add_device_usbh(&csb337_usbh_data);
237 /* USB Device */
238 at91_add_device_udc(&csb337_udc_data);
239 /* I2C */
240 at91_add_device_i2c(csb337_i2c_devices, ARRAY_SIZE(csb337_i2c_devices));
241 /* Compact Flash */
242 at91_set_gpio_input(AT91_PIN_PB22, 1); /* IOIS16 */
243 at91_add_device_cf(&csb337_cf_data);
244 /* SPI */
245 at91_add_device_spi(csb337_spi_devices, ARRAY_SIZE(csb337_spi_devices));
246 /* MMC */
247 at91_add_device_mmc(0, &csb337_mmc_data);
248 /* NOR flash */
249 platform_device_register(&csb_flash);
250 /* LEDs */
251 at91_gpio_leds(csb_leds, ARRAY_SIZE(csb_leds));
252 /* Switches on CSB300 */
253 csb300_add_device_buttons();
254 }
255
256 MACHINE_START(CSB337, "Cogent CSB337")
257 /* Maintainer: Bill Gatliff */
258 .timer = &at91rm9200_timer,
259 .map_io = at91_map_io,
260 .init_early = csb337_init_early,
261 .init_irq = at91_init_irq_default,
262 .init_machine = csb337_board_init,
263 MACHINE_END
264