aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-at91/board-pcontrol-g20.c
blob: 5f25fa54eb93e9887bea2bced02521941c53a63c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
/*
 *  Copyright (C) 2010 Christian Glindkamp <christian.glindkamp@taskit.de>
 *                     taskit GmbH
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
/*
 * copied and adjusted from board-stamp9g20.c
 * by Peter Gsellmann <pgsellmann@portner-elektronik.at>
 */

#include <linux/mm.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/w1-gpio.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>

#include <mach/at91sam9_smc.h>
#include <mach/hardware.h>

#include "at91_aic.h"
#include "board.h"
#include "sam9_smc.h"
#include "generic.h"
#include "stamp9g20.h"


static void __init pcontrol_g20_init_early(void)
{
	stamp9g20_init_early();
}

static struct sam9_smc_config __initdata pcontrol_smc_config[2] = { {
	.ncs_read_setup		= 16,
	.nrd_setup		= 18,
	.ncs_write_setup	= 16,
	.nwe_setup		= 18,

	.ncs_read_pulse		= 63,
	.nrd_pulse		= 55,
	.ncs_write_pulse	= 63,
	.nwe_pulse		= 55,

	.read_cycle		= 127,
	.write_cycle		= 127,

	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE
			| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT
			| AT91_SMC_DBW_8 | AT91_SMC_PS_4
			| AT91_SMC_TDFMODE,
	.tdf_cycles		= 3,
}, {
	.ncs_read_setup		= 0,
	.nrd_setup		= 0,
	.ncs_write_setup	= 0,
	.nwe_setup		= 1,

	.ncs_read_pulse		= 8,
	.nrd_pulse		= 8,
	.ncs_write_pulse	= 5,
	.nwe_pulse		= 4,

	.read_cycle		= 8,
	.write_cycle		= 7,

	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE
			| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT
			| AT91_SMC_DBW_16 | AT91_SMC_PS_8
			| AT91_SMC_TDFMODE,
	.tdf_cycles		= 1,
} };

static void __init add_device_pcontrol(void)
{
	/* configure chip-select 4 (IO compatible to 8051  X4 ) */
	sam9_smc_configure(0, 4, &pcontrol_smc_config[0]);
	/* configure chip-select 7 (FerroRAM 256KiBx16bit MR2A16A  D4 ) */
	sam9_smc_configure(0, 7, &pcontrol_smc_config[1]);
}


/*
 * USB Host port
 */
static struct at91_usbh_data __initdata usbh_data = {
	.ports		= 2,
	.vbus_pin	= {-EINVAL, -EINVAL},
	.overcurrent_pin= {-EINVAL, -EINVAL},
};


/*
 * USB Device port
 */
static struct at91_udc_data __initdata pcontrol_g20_udc_data = {
	.vbus_pin	= AT91_PIN_PA22,	/* Detect +5V bus voltage */
	.pullup_pin	= AT91_PIN_PA4,		/* K-state, active low */
};


/*
 * MACB Ethernet device
 */
static struct macb_platform_data __initdata macb_data = {
	.phy_irq_pin	= AT91_PIN_PA28,
	.is_rmii	= 1,
};


/*
 * I2C devices: eeprom and phy/switch
 */
static struct i2c_board_info __initdata pcontrol_g20_i2c_devices[] = {
{		/* D7  address width=2, 8KiB */
	I2C_BOARD_INFO("24c64", 0x50)
}, {		/* D8  address width=1, 1 byte has 32 bits! */
	I2C_BOARD_INFO("lan9303", 0x0a)
}, };


/*
 * LEDs
 */
static struct gpio_led pcontrol_g20_leds[] = {
	{
		.name			= "LED1",	/* red  H5 */
		.gpio			= AT91_PIN_PB18,
		.active_low		= 1,
		.default_trigger	= "none",	/* supervisor */
	}, {
		.name			= "LED2",	/* yellow  H7 */
		.gpio			= AT91_PIN_PB19,
		.active_low		= 1,
		.default_trigger	= "mmc0",	/* SD-card activity */
	}, {
		.name			= "LED3",	/* green  H2 */
		.gpio			= AT91_PIN_PB20,
		.active_low		= 1,
		.default_trigger	= "heartbeat",	/* blinky */
	}, {
		.name			= "LED4",	/* red  H3 */
		.gpio			= AT91_PIN_PC6,
		.active_low		= 1,
		.default_trigger	= "none",	/* connection lost */
	}, {
		.name			= "LED5",	/* yellow  H6 */
		.gpio			= AT91_PIN_PC7,
		.active_low		= 1,
		.default_trigger	= "none",	/* unsent data */
	}, {
		.name			= "LED6",	/* green  H1 */
		.gpio			= AT91_PIN_PC9,
		.active_low		= 1,
		.default_trigger	= "none",	/* snafu */
	}
};


/*
 * SPI devices
 */
static struct spi_board_info pcontrol_g20_spi_devices[] = {
	{
		.modalias	= "spidev",	/* HMI port  X4 */
		.chip_select	= 1,
		.max_speed_hz	= 50 * 1000 * 1000,
		.bus_num	= 0,
	}, {
		.modalias	= "spidev",	/* piggyback  A2 */
		.chip_select	= 0,
		.max_speed_hz	= 50 * 1000 * 1000,
		.bus_num	= 1,
	},
};


static void __init pcontrol_g20_board_init(void)
{
	/* USART0 on ttyS1. (Rx, Tx, CTS, RTS) piggyback  A2 */
	at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS
						| ATMEL_UART_RTS);

	/* USART1 on ttyS2. (Rx, Tx, CTS, RTS) isolated RS485  X5 */
	at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS
						| ATMEL_UART_RTS);

	/* USART2 on ttyS3. (Rx, Tx)  9bit-Bus  Multidrop-mode  X4 */
	at91_register_uart(AT91SAM9260_ID_US4, 3, 0);
	stamp9g20_board_init();
	at91_add_device_usbh(&usbh_data);
	at91_add_device_eth(&macb_data);
	at91_add_device_i2c(pcontrol_g20_i2c_devices,
		ARRAY_SIZE(pcontrol_g20_i2c_devices));
	add_device_pcontrol();
	at91_add_device_spi(pcontrol_g20_spi_devices,
		ARRAY_SIZE(pcontrol_g20_spi_devices));
	at91_add_device_udc(&pcontrol_g20_udc_data);
	at91_gpio_leds(pcontrol_g20_leds,
		ARRAY_SIZE(pcontrol_g20_leds));
	/* piggyback  A2 */
	at91_set_gpio_output(AT91_PIN_PB31, 1);
}


MACHINE_START(PCONTROL_G20, "PControl G20")
	/* Maintainer: pgsellmann@portner-elektronik.at */
	.init_time	= at91sam926x_pit_init,
	.map_io		= at91_map_io,
	.handle_irq	= at91_aic_handle_irq,
	.init_early	= pcontrol_g20_init_early,
	.init_irq	= at91_init_irq_default,
	.init_machine	= pcontrol_g20_board_init,
MACHINE_END