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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/board.h> |
33 | #include <mach/at91sam9_smc.h> |
34 | #include <mach/stamp9g20.h> |
35 | |
36 | #include "sam9_smc.h" |
37 | #include "generic.h" |
38 | |
39 | |
40 | static void __init pcontrol_g20_map_io(void) |
41 | { |
42 | stamp9g20_map_io(); |
43 | |
44 | /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) piggyback A2 */ |
45 | at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS |
46 | | ATMEL_UART_RTS); |
47 | |
48 | /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) isolated RS485 X5 */ |
49 | at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS |
50 | | ATMEL_UART_RTS); |
51 | |
52 | /* USART2 on ttyS3. (Rx, Tx) 9bit-Bus Multidrop-mode X4 */ |
53 | at91_register_uart(AT91SAM9260_ID_US4, 3, 0); |
54 | } |
55 | |
56 | |
57 | static void __init init_irq(void) |
58 | { |
59 | at91sam9260_init_interrupts(NULL); |
60 | } |
61 | |
62 | |
63 | static struct sam9_smc_config __initdata pcontrol_smc_config[2] = { { |
64 | .ncs_read_setup = 16, |
65 | .nrd_setup = 18, |
66 | .ncs_write_setup = 16, |
67 | .nwe_setup = 18, |
68 | |
69 | .ncs_read_pulse = 63, |
70 | .nrd_pulse = 55, |
71 | .ncs_write_pulse = 63, |
72 | .nwe_pulse = 55, |
73 | |
74 | .read_cycle = 127, |
75 | .write_cycle = 127, |
76 | |
77 | .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
78 | | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT |
79 | | AT91_SMC_DBW_8 | AT91_SMC_PS_4 |
80 | | AT91_SMC_TDFMODE, |
81 | .tdf_cycles = 3, |
82 | }, { |
83 | .ncs_read_setup = 0, |
84 | .nrd_setup = 0, |
85 | .ncs_write_setup = 0, |
86 | .nwe_setup = 1, |
87 | |
88 | .ncs_read_pulse = 8, |
89 | .nrd_pulse = 8, |
90 | .ncs_write_pulse = 5, |
91 | .nwe_pulse = 4, |
92 | |
93 | .read_cycle = 8, |
94 | .write_cycle = 7, |
95 | |
96 | .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
97 | | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT |
98 | | AT91_SMC_DBW_16 | AT91_SMC_PS_8 |
99 | | AT91_SMC_TDFMODE, |
100 | .tdf_cycles = 1, |
101 | } }; |
102 | |
103 | static void __init add_device_pcontrol(void) |
104 | { |
105 | /* configure chip-select 4 (IO compatible to 8051 X4 ) */ |
106 | sam9_smc_configure(4, &pcontrol_smc_config[0]); |
107 | /* configure chip-select 7 (FerroRAM 256KiBx16bit MR2A16A D4 ) */ |
108 | sam9_smc_configure(7, &pcontrol_smc_config[1]); |
109 | } |
110 | |
111 | |
112 | /* |
113 | * USB Host port |
114 | */ |
115 | static struct at91_usbh_data __initdata usbh_data = { |
116 | .ports = 2, |
117 | }; |
118 | |
119 | |
120 | /* |
121 | * USB Device port |
122 | */ |
123 | static struct at91_udc_data __initdata pcontrol_g20_udc_data = { |
124 | .vbus_pin = AT91_PIN_PA22, /* Detect +5V bus voltage */ |
125 | .pullup_pin = AT91_PIN_PA4, /* K-state, active low */ |
126 | }; |
127 | |
128 | |
129 | /* |
130 | * MACB Ethernet device |
131 | */ |
132 | static struct at91_eth_data __initdata macb_data = { |
133 | .phy_irq_pin = AT91_PIN_PA28, |
134 | .is_rmii = 1, |
135 | }; |
136 | |
137 | |
138 | /* |
139 | * I2C devices: eeprom and phy/switch |
140 | */ |
141 | static struct i2c_board_info __initdata pcontrol_g20_i2c_devices[] = { |
142 | { /* D7 address width=2, 8KiB */ |
143 | I2C_BOARD_INFO("24c64", 0x50) |
144 | }, { /* D8 address width=1, 1 byte has 32 bits! */ |
145 | I2C_BOARD_INFO("lan9303", 0x0a) |
146 | }, }; |
147 | |
148 | |
149 | /* |
150 | * LEDs |
151 | */ |
152 | static struct gpio_led pcontrol_g20_leds[] = { |
153 | { |
154 | .name = "LED1", /* red H5 */ |
155 | .gpio = AT91_PIN_PB18, |
156 | .active_low = 1, |
157 | .default_trigger = "none", /* supervisor */ |
158 | }, { |
159 | .name = "LED2", /* yellow H7 */ |
160 | .gpio = AT91_PIN_PB19, |
161 | .active_low = 1, |
162 | .default_trigger = "mmc0", /* SD-card activity */ |
163 | }, { |
164 | .name = "LED3", /* green H2 */ |
165 | .gpio = AT91_PIN_PB20, |
166 | .active_low = 1, |
167 | .default_trigger = "heartbeat", /* blinky */ |
168 | }, { |
169 | .name = "LED4", /* red H3 */ |
170 | .gpio = AT91_PIN_PC6, |
171 | .active_low = 1, |
172 | .default_trigger = "none", /* connection lost */ |
173 | }, { |
174 | .name = "LED5", /* yellow H6 */ |
175 | .gpio = AT91_PIN_PC7, |
176 | .active_low = 1, |
177 | .default_trigger = "none", /* unsent data */ |
178 | }, { |
179 | .name = "LED6", /* green H1 */ |
180 | .gpio = AT91_PIN_PC9, |
181 | .active_low = 1, |
182 | .default_trigger = "none", /* snafu */ |
183 | } |
184 | }; |
185 | |
186 | |
187 | /* |
188 | * SPI devices |
189 | */ |
190 | static struct spi_board_info pcontrol_g20_spi_devices[] = { |
191 | { |
192 | .modalias = "spidev", /* HMI port X4 */ |
193 | .chip_select = 1, |
194 | .max_speed_hz = 50 * 1000 * 1000, |
195 | .bus_num = 0, |
196 | }, { |
197 | .modalias = "spidev", /* piggyback A2 */ |
198 | .chip_select = 0, |
199 | .max_speed_hz = 50 * 1000 * 1000, |
200 | .bus_num = 1, |
201 | }, |
202 | }; |
203 | |
204 | |
205 | static void __init pcontrol_g20_board_init(void) |
206 | { |
207 | stamp9g20_board_init(); |
208 | at91_add_device_usbh(&usbh_data); |
209 | at91_add_device_eth(&macb_data); |
210 | at91_add_device_i2c(pcontrol_g20_i2c_devices, |
211 | ARRAY_SIZE(pcontrol_g20_i2c_devices)); |
212 | add_device_pcontrol(); |
213 | at91_add_device_spi(pcontrol_g20_spi_devices, |
214 | ARRAY_SIZE(pcontrol_g20_spi_devices)); |
215 | at91_add_device_udc(&pcontrol_g20_udc_data); |
216 | at91_gpio_leds(pcontrol_g20_leds, |
217 | ARRAY_SIZE(pcontrol_g20_leds)); |
218 | /* piggyback A2 */ |
219 | at91_set_gpio_output(AT91_PIN_PB31, 1); |
220 | } |
221 | |
222 | |
223 | MACHINE_START(PCONTROL_G20, "PControl G20") |
224 | /* Maintainer: pgsellmann@portner-elektronik.at */ |
225 | .boot_params = AT91_SDRAM_BASE + 0x100, |
226 | .timer = &at91sam926x_timer, |
227 | .map_io = pcontrol_g20_map_io, |
228 | .init_irq = init_irq, |
229 | .init_machine = pcontrol_g20_board_init, |
230 | MACHINE_END |
231 |
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