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/init.h>
23 #include <linux/mm.h>
24 #include <linux/module.h>
25 #include <linux/platform_device.h>
26 #include <linux/spi/spi.h>
27 #include <linux/mtd/physmap.h>
28 #include <linux/input.h>
29 #include <linux/gpio_keys.h>
30
31 #include <asm/setup.h>
32 #include <asm/mach-types.h>
33 #include <asm/irq.h>
34
35 #include <asm/mach/arch.h>
36 #include <asm/mach/map.h>
37 #include <asm/mach/irq.h>
38
39 #include <mach/hardware.h>
40 #include <mach/board.h>
41 #include <mach/gpio.h>
42
43 #include "generic.h"
44
45
csb337_map_io(void)46 static void __init csb337_map_io(void)
47 {
48 /* Initialize processor: 3.6864 MHz crystal */
49 at91rm9200_initialize(3686400, AT91RM9200_BGA);
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
csb337_init_irq(void)61 static void __init csb337_init_irq(void)
62 {
63 at91rm9200_init_interrupts(NULL);
64 }
65
66 static struct at91_eth_data __initdata csb337_eth_data = {
67 .phy_irq_pin = AT91_PIN_PC2,
68 .is_rmii = 0,
69 };
70
71 static struct at91_usbh_data __initdata csb337_usbh_data = {
72 .ports = 2,
73 };
74
75 static struct at91_udc_data __initdata csb337_udc_data = {
76 // this has no VBUS sensing pin
77 .pullup_pin = AT91_PIN_PA24,
78 };
79
80 static struct i2c_board_info __initdata csb337_i2c_devices[] = {
81 {
82 I2C_BOARD_INFO("ds1307", 0x68),
83 },
84 };
85
86 static struct at91_cf_data __initdata csb337_cf_data = {
87 /*
88 * connector P4 on the CSB 337 mates to
89 * connector P8 on the CSB 300CF
90 */
91
92 /* CSB337 specific */
93 .det_pin = AT91_PIN_PC3,
94
95 /* CSB300CF specific */
96 .irq_pin = AT91_PIN_PA19,
97 .vcc_pin = AT91_PIN_PD0,
98 .rst_pin = AT91_PIN_PD2,
99 };
100
101 static struct at91_mmc_data __initdata csb337_mmc_data = {
102 .det_pin = AT91_PIN_PD5,
103 .slot_b = 0,
104 .wire4 = 1,
105 .wp_pin = AT91_PIN_PD6,
106 };
107
108 static struct spi_board_info csb337_spi_devices[] = {
109 { /* CAN controller */
110 .modalias = "sak82c900",
111 .chip_select = 0,
112 .max_speed_hz = 6 * 1000 * 1000,
113 },
114 };
115
116 #define CSB_FLASH_BASE AT91_CHIPSELECT_0
117 #define CSB_FLASH_SIZE SZ_8M
118
119 static struct mtd_partition csb_flash_partitions[] = {
120 {
121 .name = "uMON flash",
122 .offset = 0,
123 .size = MTDPART_SIZ_FULL,
124 .mask_flags = MTD_WRITEABLE, /* read only */
125 }
126 };
127
128 static struct physmap_flash_data csb_flash_data = {
129 .width = 2,
130 .parts = csb_flash_partitions,
131 .nr_parts = ARRAY_SIZE(csb_flash_partitions),
132 };
133
134 static struct resource csb_flash_resources[] = {
135 {
136 .start = CSB_FLASH_BASE,
137 .end = CSB_FLASH_BASE + CSB_FLASH_SIZE - 1,
138 .flags = IORESOURCE_MEM,
139 }
140 };
141
142 static struct platform_device csb_flash = {
143 .name = "physmap-flash",
144 .id = 0,
145 .dev = {
146 .platform_data = &csb_flash_data,
147 },
148 .resource = csb_flash_resources,
149 .num_resources = ARRAY_SIZE(csb_flash_resources),
150 };
151
152 /*
153 * GPIO Buttons (on CSB300)
154 */
155 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
156 static struct gpio_keys_button csb300_buttons[] = {
157 {
158 .gpio = AT91_PIN_PB29,
159 .code = BTN_0,
160 .desc = "sw0",
161 .active_low = 1,
162 .wakeup = 1,
163 },
164 {
165 .gpio = AT91_PIN_PB28,
166 .code = BTN_1,
167 .desc = "sw1",
168 .active_low = 1,
169 .wakeup = 1,
170 },
171 {
172 .gpio = AT91_PIN_PA21,
173 .code = BTN_2,
174 .desc = "sw2",
175 .active_low = 1,
176 .wakeup = 1,
177 }
178 };
179
180 static struct gpio_keys_platform_data csb300_button_data = {
181 .buttons = csb300_buttons,
182 .nbuttons = ARRAY_SIZE(csb300_buttons),
183 };
184
185 static struct platform_device csb300_button_device = {
186 .name = "gpio-keys",
187 .id = -1,
188 .num_resources = 0,
189 .dev = {
190 .platform_data = &csb300_button_data,
191 }
192 };
193
csb300_add_device_buttons(void)194 static void __init csb300_add_device_buttons(void)
195 {
196 at91_set_gpio_input(AT91_PIN_PB29, 1); /* sw0 */
197 at91_set_deglitch(AT91_PIN_PB29, 1);
198 at91_set_gpio_input(AT91_PIN_PB28, 1); /* sw1 */
199 at91_set_deglitch(AT91_PIN_PB28, 1);
200 at91_set_gpio_input(AT91_PIN_PA21, 1); /* sw2 */
201 at91_set_deglitch(AT91_PIN_PA21, 1);
202
203 platform_device_register(&csb300_button_device);
204 }
205 #else
csb300_add_device_buttons(void)206 static void __init csb300_add_device_buttons(void) {}
207 #endif
208
209 static struct gpio_led csb_leds[] = {
210 { /* "led0", yellow */
211 .name = "led0",
212 .gpio = AT91_PIN_PB2,
213 .active_low = 1,
214 .default_trigger = "heartbeat",
215 },
216 { /* "led1", green */
217 .name = "led1",
218 .gpio = AT91_PIN_PB1,
219 .active_low = 1,
220 .default_trigger = "mmc0",
221 },
222 { /* "led2", yellow */
223 .name = "led2",
224 .gpio = AT91_PIN_PB0,
225 .active_low = 1,
226 .default_trigger = "ide-disk",
227 }
228 };
229
230
csb337_board_init(void)231 static void __init csb337_board_init(void)
232 {
233 /* Serial */
234 at91_add_device_serial();
235 /* Ethernet */
236 at91_add_device_eth(&csb337_eth_data);
237 /* USB Host */
238 at91_add_device_usbh(&csb337_usbh_data);
239 /* USB Device */
240 at91_add_device_udc(&csb337_udc_data);
241 /* I2C */
242 at91_add_device_i2c(csb337_i2c_devices, ARRAY_SIZE(csb337_i2c_devices));
243 /* Compact Flash */
244 at91_set_gpio_input(AT91_PIN_PB22, 1); /* IOIS16 */
245 at91_add_device_cf(&csb337_cf_data);
246 /* SPI */
247 at91_add_device_spi(csb337_spi_devices, ARRAY_SIZE(csb337_spi_devices));
248 /* MMC */
249 at91_add_device_mmc(0, &csb337_mmc_data);
250 /* NOR flash */
251 platform_device_register(&csb_flash);
252 /* LEDs */
253 at91_gpio_leds(csb_leds, ARRAY_SIZE(csb_leds));
254 /* Switches on CSB300 */
255 csb300_add_device_buttons();
256 }
257
258 MACHINE_START(CSB337, "Cogent CSB337")
259 /* Maintainer: Bill Gatliff */
260 .phys_io = AT91_BASE_SYS,
261 .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
262 .boot_params = AT91_SDRAM_BASE + 0x100,
263 .timer = &at91rm9200_timer,
264 .map_io = csb337_map_io,
265 .init_irq = csb337_init_irq,
266 .init_machine = csb337_board_init,
267 MACHINE_END
268