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 * copied and adjusted from board-stamp9g20.c
21 * by Peter Gsellmann <pgsellmann@portner-elektronik.at>
22 */
23
24 #include <linux/mm.h>
25 #include <linux/platform_device.h>
26 #include <linux/gpio.h>
27 #include <linux/w1-gpio.h>
28
29 #include <asm/mach-types.h>
30 #include <asm/mach/arch.h>
31
32 #include <mach/at91sam9_smc.h>
33 #include <mach/hardware.h>
34
35 #include "at91_aic.h"
36 #include "board.h"
37 #include "sam9_smc.h"
38 #include "generic.h"
39 #include "stamp9g20.h"
40 #include "gpio.h"
41
42
pcontrol_g20_init_early(void)43 static void __init pcontrol_g20_init_early(void)
44 {
45 stamp9g20_init_early();
46 }
47
48 static struct sam9_smc_config __initdata pcontrol_smc_config[2] = { {
49 .ncs_read_setup = 16,
50 .nrd_setup = 18,
51 .ncs_write_setup = 16,
52 .nwe_setup = 18,
53
54 .ncs_read_pulse = 63,
55 .nrd_pulse = 55,
56 .ncs_write_pulse = 63,
57 .nwe_pulse = 55,
58
59 .read_cycle = 127,
60 .write_cycle = 127,
61
62 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
63 | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT
64 | AT91_SMC_DBW_8 | AT91_SMC_PS_4
65 | AT91_SMC_TDFMODE,
66 .tdf_cycles = 3,
67 }, {
68 .ncs_read_setup = 0,
69 .nrd_setup = 0,
70 .ncs_write_setup = 0,
71 .nwe_setup = 1,
72
73 .ncs_read_pulse = 8,
74 .nrd_pulse = 8,
75 .ncs_write_pulse = 5,
76 .nwe_pulse = 4,
77
78 .read_cycle = 8,
79 .write_cycle = 7,
80
81 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
82 | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT
83 | AT91_SMC_DBW_16 | AT91_SMC_PS_8
84 | AT91_SMC_TDFMODE,
85 .tdf_cycles = 1,
86 } };
87
add_device_pcontrol(void)88 static void __init add_device_pcontrol(void)
89 {
90 /* configure chip-select 4 (IO compatible to 8051 X4 ) */
91 sam9_smc_configure(0, 4, &pcontrol_smc_config[0]);
92 /* configure chip-select 7 (FerroRAM 256KiBx16bit MR2A16A D4 ) */
93 sam9_smc_configure(0, 7, &pcontrol_smc_config[1]);
94 }
95
96
97 /*
98 * USB Host port
99 */
100 static struct at91_usbh_data __initdata usbh_data = {
101 .ports = 2,
102 .vbus_pin = {-EINVAL, -EINVAL},
103 .overcurrent_pin= {-EINVAL, -EINVAL},
104 };
105
106
107 /*
108 * USB Device port
109 */
110 static struct at91_udc_data __initdata pcontrol_g20_udc_data = {
111 .vbus_pin = AT91_PIN_PA22, /* Detect +5V bus voltage */
112 .pullup_pin = AT91_PIN_PA4, /* K-state, active low */
113 };
114
115
116 /*
117 * MACB Ethernet device
118 */
119 static struct macb_platform_data __initdata macb_data = {
120 .phy_irq_pin = AT91_PIN_PA28,
121 .is_rmii = 1,
122 };
123
124
125 /*
126 * I2C devices: eeprom and phy/switch
127 */
128 static struct i2c_board_info __initdata pcontrol_g20_i2c_devices[] = {
129 { /* D7 address width=2, 8KiB */
130 I2C_BOARD_INFO("24c64", 0x50)
131 }, { /* D8 address width=1, 1 byte has 32 bits! */
132 I2C_BOARD_INFO("lan9303", 0x0a)
133 }, };
134
135
136 /*
137 * LEDs
138 */
139 static struct gpio_led pcontrol_g20_leds[] = {
140 {
141 .name = "LED1", /* red H5 */
142 .gpio = AT91_PIN_PB18,
143 .active_low = 1,
144 .default_trigger = "none", /* supervisor */
145 }, {
146 .name = "LED2", /* yellow H7 */
147 .gpio = AT91_PIN_PB19,
148 .active_low = 1,
149 .default_trigger = "mmc0", /* SD-card activity */
150 }, {
151 .name = "LED3", /* green H2 */
152 .gpio = AT91_PIN_PB20,
153 .active_low = 1,
154 .default_trigger = "heartbeat", /* blinky */
155 }, {
156 .name = "LED4", /* red H3 */
157 .gpio = AT91_PIN_PC6,
158 .active_low = 1,
159 .default_trigger = "none", /* connection lost */
160 }, {
161 .name = "LED5", /* yellow H6 */
162 .gpio = AT91_PIN_PC7,
163 .active_low = 1,
164 .default_trigger = "none", /* unsent data */
165 }, {
166 .name = "LED6", /* green H1 */
167 .gpio = AT91_PIN_PC9,
168 .active_low = 1,
169 .default_trigger = "none", /* snafu */
170 }
171 };
172
173
174 /*
175 * SPI devices
176 */
177 static struct spi_board_info pcontrol_g20_spi_devices[] = {
178 {
179 .modalias = "spidev", /* HMI port X4 */
180 .chip_select = 1,
181 .max_speed_hz = 50 * 1000 * 1000,
182 .bus_num = 0,
183 }, {
184 .modalias = "spidev", /* piggyback A2 */
185 .chip_select = 0,
186 .max_speed_hz = 50 * 1000 * 1000,
187 .bus_num = 1,
188 },
189 };
190
191
pcontrol_g20_board_init(void)192 static void __init pcontrol_g20_board_init(void)
193 {
194 /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) piggyback A2 */
195 at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS
196 | ATMEL_UART_RTS);
197
198 /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) isolated RS485 X5 */
199 at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS
200 | ATMEL_UART_RTS);
201
202 /* USART2 on ttyS3. (Rx, Tx) 9bit-Bus Multidrop-mode X4 */
203 at91_register_uart(AT91SAM9260_ID_US4, 3, 0);
204 stamp9g20_board_init();
205 at91_add_device_usbh(&usbh_data);
206 at91_add_device_eth(&macb_data);
207 at91_add_device_i2c(pcontrol_g20_i2c_devices,
208 ARRAY_SIZE(pcontrol_g20_i2c_devices));
209 add_device_pcontrol();
210 at91_add_device_spi(pcontrol_g20_spi_devices,
211 ARRAY_SIZE(pcontrol_g20_spi_devices));
212 at91_add_device_udc(&pcontrol_g20_udc_data);
213 at91_gpio_leds(pcontrol_g20_leds,
214 ARRAY_SIZE(pcontrol_g20_leds));
215 /* piggyback A2 */
216 at91_set_gpio_output(AT91_PIN_PB31, 1);
217 }
218
219
220 MACHINE_START(PCONTROL_G20, "PControl G20")
221 /* Maintainer: pgsellmann@portner-elektronik.at */
222 .init_time = at91_init_time,
223 .map_io = at91_map_io,
224 .handle_irq = at91_aic_handle_irq,
225 .init_early = pcontrol_g20_init_early,
226 .init_irq = at91_init_irq_default,
227 .init_machine = pcontrol_g20_board_init,
228 MACHINE_END
229