1 /*
2 * linux/arch/arm/mach-at91/board-dk.c
3 *
4 * Copyright (C) 2005 SAN People
5 *
6 * Epson S1D framebuffer glue code is:
7 * Copyright (C) 2005 Thibaut VARENE <varenet@parisc-linux.org>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 */
23
24 #include <linux/types.h>
25 #include <linux/init.h>
26 #include <linux/mm.h>
27 #include <linux/module.h>
28 #include <linux/platform_device.h>
29 #include <linux/spi/spi.h>
30 #include <linux/mtd/physmap.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 #include <mach/gpio.h>
43 #include <mach/at91rm9200_mc.h>
44
45 #include "generic.h"
46
47
dk_map_io(void)48 static void __init dk_map_io(void)
49 {
50 /* Initialize processor: 18.432 MHz crystal */
51 at91rm9200_initialize(18432000, AT91RM9200_BGA);
52
53 /* Setup the LEDs */
54 at91_init_leds(AT91_PIN_PB2, AT91_PIN_PB2);
55
56 /* DBGU on ttyS0. (Rx & Tx only) */
57 at91_register_uart(0, 0, 0);
58
59 /* USART1 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
60 at91_register_uart(AT91RM9200_ID_US1, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
61 | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
62 | ATMEL_UART_RI);
63
64 /* set serial console to ttyS0 (ie, DBGU) */
65 at91_set_serial_console(0);
66 }
67
dk_init_irq(void)68 static void __init dk_init_irq(void)
69 {
70 at91rm9200_init_interrupts(NULL);
71 }
72
73 static struct at91_eth_data __initdata dk_eth_data = {
74 .phy_irq_pin = AT91_PIN_PC4,
75 .is_rmii = 1,
76 };
77
78 static struct at91_usbh_data __initdata dk_usbh_data = {
79 .ports = 2,
80 };
81
82 static struct at91_udc_data __initdata dk_udc_data = {
83 .vbus_pin = AT91_PIN_PD4,
84 .pullup_pin = AT91_PIN_PD5,
85 };
86
87 static struct at91_cf_data __initdata dk_cf_data = {
88 .det_pin = AT91_PIN_PB0,
89 .rst_pin = AT91_PIN_PC5,
90 // .irq_pin = ... not connected
91 // .vcc_pin = ... always powered
92 };
93
94 static struct at91_mmc_data __initdata dk_mmc_data = {
95 .slot_b = 0,
96 .wire4 = 1,
97 };
98
99 static struct spi_board_info dk_spi_devices[] = {
100 { /* DataFlash chip */
101 .modalias = "mtd_dataflash",
102 .chip_select = 0,
103 .max_speed_hz = 15 * 1000 * 1000,
104 },
105 { /* UR6HCPS2-SP40 PS2-to-SPI adapter */
106 .modalias = "ur6hcps2",
107 .chip_select = 1,
108 .max_speed_hz = 250 * 1000,
109 },
110 { /* TLV1504 ADC, 4 channels, 10 bits; one is a temp sensor */
111 .modalias = "tlv1504",
112 .chip_select = 2,
113 .max_speed_hz = 20 * 1000 * 1000,
114 },
115 #ifdef CONFIG_MTD_AT91_DATAFLASH_CARD
116 { /* DataFlash card */
117 .modalias = "mtd_dataflash",
118 .chip_select = 3,
119 .max_speed_hz = 15 * 1000 * 1000,
120 }
121 #endif
122 };
123
124 static struct i2c_board_info __initdata dk_i2c_devices[] = {
125 {
126 I2C_BOARD_INFO("ics1523", 0x26),
127 },
128 {
129 I2C_BOARD_INFO("x9429", 0x28),
130 },
131 {
132 I2C_BOARD_INFO("24c1024", 0x50),
133 }
134 };
135
136 static struct mtd_partition __initdata dk_nand_partition[] = {
137 {
138 .name = "NAND Partition 1",
139 .offset = 0,
140 .size = MTDPART_SIZ_FULL,
141 },
142 };
143
nand_partitions(int size,int * num_partitions)144 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
145 {
146 *num_partitions = ARRAY_SIZE(dk_nand_partition);
147 return dk_nand_partition;
148 }
149
150 static struct atmel_nand_data __initdata dk_nand_data = {
151 .ale = 22,
152 .cle = 21,
153 .det_pin = AT91_PIN_PB1,
154 .rdy_pin = AT91_PIN_PC2,
155 // .enable_pin = ... not there
156 .partition_info = nand_partitions,
157 };
158
159 #define DK_FLASH_BASE AT91_CHIPSELECT_0
160 #define DK_FLASH_SIZE SZ_2M
161
162 static struct physmap_flash_data dk_flash_data = {
163 .width = 2,
164 };
165
166 static struct resource dk_flash_resource = {
167 .start = DK_FLASH_BASE,
168 .end = DK_FLASH_BASE + DK_FLASH_SIZE - 1,
169 .flags = IORESOURCE_MEM,
170 };
171
172 static struct platform_device dk_flash = {
173 .name = "physmap-flash",
174 .id = 0,
175 .dev = {
176 .platform_data = &dk_flash_data,
177 },
178 .resource = &dk_flash_resource,
179 .num_resources = 1,
180 };
181
182 static struct gpio_led dk_leds[] = {
183 {
184 .name = "led0",
185 .gpio = AT91_PIN_PB2,
186 .active_low = 1,
187 .default_trigger = "heartbeat",
188 }
189 };
190
dk_board_init(void)191 static void __init dk_board_init(void)
192 {
193 /* Serial */
194 at91_add_device_serial();
195 /* Ethernet */
196 at91_add_device_eth(&dk_eth_data);
197 /* USB Host */
198 at91_add_device_usbh(&dk_usbh_data);
199 /* USB Device */
200 at91_add_device_udc(&dk_udc_data);
201 at91_set_multi_drive(dk_udc_data.pullup_pin, 1); /* pullup_pin is connected to reset */
202 /* Compact Flash */
203 at91_add_device_cf(&dk_cf_data);
204 /* I2C */
205 at91_add_device_i2c(dk_i2c_devices, ARRAY_SIZE(dk_i2c_devices));
206 /* SPI */
207 at91_add_device_spi(dk_spi_devices, ARRAY_SIZE(dk_spi_devices));
208 #ifdef CONFIG_MTD_AT91_DATAFLASH_CARD
209 /* DataFlash card */
210 at91_set_gpio_output(AT91_PIN_PB7, 0);
211 #else
212 /* MMC */
213 at91_set_gpio_output(AT91_PIN_PB7, 1); /* this MMC card slot can optionally use SPI signaling (CS3). */
214 at91_add_device_mmc(0, &dk_mmc_data);
215 #endif
216 /* NAND */
217 at91_add_device_nand(&dk_nand_data);
218 /* NOR Flash */
219 platform_device_register(&dk_flash);
220 /* LEDs */
221 at91_gpio_leds(dk_leds, ARRAY_SIZE(dk_leds));
222 /* VGA */
223 // dk_add_device_video();
224 }
225
226 MACHINE_START(AT91RM9200DK, "Atmel AT91RM9200-DK")
227 /* Maintainer: SAN People/Atmel */
228 .phys_io = AT91_BASE_SYS,
229 .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
230 .boot_params = AT91_SDRAM_BASE + 0x100,
231 .timer = &at91rm9200_timer,
232 .map_io = dk_map_io,
233 .init_irq = dk_init_irq,
234 .init_machine = dk_board_init,
235 MACHINE_END
236