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022cbd73 | 1 | /* |
d0760b3b | 2 | * linux/arch/arm/mach-at91/board-sam9261ek.c |
022cbd73 AV |
3 | * |
4 | * Copyright (C) 2005 SAN People | |
5 | * Copyright (C) 2006 Atmel | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
21 | ||
22 | #include <linux/types.h> | |
23 | #include <linux/init.h> | |
24 | #include <linux/mm.h> | |
25 | #include <linux/module.h> | |
26 | #include <linux/platform_device.h> | |
27 | #include <linux/spi/spi.h> | |
23522728 | 28 | #include <linux/spi/ads7846.h> |
022cbd73 AV |
29 | #include <linux/dm9000.h> |
30 | ||
31 | #include <asm/hardware.h> | |
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 <asm/arch/board.h> | |
41 | #include <asm/arch/gpio.h> | |
42 | #include <asm/arch/at91sam926x_mc.h> | |
43 | ||
44 | #include "generic.h" | |
45 | ||
46 | ||
47 | /* | |
48 | * Serial port configuration. | |
49 | * 0 .. 2 = USART0 .. USART2 | |
50 | * 3 = DBGU | |
51 | */ | |
52 | static struct at91_uart_config __initdata ek_uart_config = { | |
53 | .console_tty = 0, /* ttyS0 */ | |
54 | .nr_tty = 1, | |
55 | .tty_map = { 3, -1, -1, -1 } /* ttyS0, ..., ttyS3 */ | |
56 | }; | |
57 | ||
58 | static void __init ek_map_io(void) | |
59 | { | |
60 | /* Initialize processor: 18.432 MHz crystal */ | |
61 | at91sam9261_initialize(18432000); | |
62 | ||
302c0ef7 AV |
63 | /* Setup the LEDs */ |
64 | at91_init_leds(AT91_PIN_PA13, AT91_PIN_PA14); | |
65 | ||
022cbd73 AV |
66 | /* Setup the serial ports and console */ |
67 | at91_init_serial(&ek_uart_config); | |
68 | } | |
69 | ||
70 | static void __init ek_init_irq(void) | |
71 | { | |
72 | at91sam9261_init_interrupts(NULL); | |
73 | } | |
74 | ||
75 | ||
76 | /* | |
77 | * DM9000 ethernet device | |
78 | */ | |
79 | #if defined(CONFIG_DM9000) | |
80 | static struct resource at91sam9261_dm9000_resource[] = { | |
81 | [0] = { | |
82 | .start = AT91_CHIPSELECT_2, | |
83 | .end = AT91_CHIPSELECT_2 + 3, | |
84 | .flags = IORESOURCE_MEM | |
85 | }, | |
86 | [1] = { | |
87 | .start = AT91_CHIPSELECT_2 + 0x44, | |
88 | .end = AT91_CHIPSELECT_2 + 0xFF, | |
89 | .flags = IORESOURCE_MEM | |
90 | }, | |
91 | [2] = { | |
92 | .start = AT91_PIN_PC11, | |
93 | .end = AT91_PIN_PC11, | |
94 | .flags = IORESOURCE_IRQ | |
95 | } | |
96 | }; | |
97 | ||
98 | static struct dm9000_plat_data dm9000_platdata = { | |
99 | .flags = DM9000_PLATF_16BITONLY, | |
100 | }; | |
101 | ||
102 | static struct platform_device at91sam9261_dm9000_device = { | |
103 | .name = "dm9000", | |
104 | .id = 0, | |
105 | .num_resources = ARRAY_SIZE(at91sam9261_dm9000_resource), | |
106 | .resource = at91sam9261_dm9000_resource, | |
107 | .dev = { | |
108 | .platform_data = &dm9000_platdata, | |
109 | } | |
110 | }; | |
111 | ||
112 | static void __init ek_add_device_dm9000(void) | |
113 | { | |
114 | /* | |
115 | * Configure Chip-Select 2 on SMC for the DM9000. | |
116 | * Note: These timings were calculated for MASTER_CLOCK = 100000000 | |
117 | * according to the DM9000 timings. | |
118 | */ | |
119 | at91_sys_write(AT91_SMC_SETUP(2), AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(0) | AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(0)); | |
120 | at91_sys_write(AT91_SMC_PULSE(2), AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(8) | AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(8)); | |
121 | at91_sys_write(AT91_SMC_CYCLE(2), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16)); | |
122 | at91_sys_write(AT91_SMC_MODE(2), AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16 | AT91_SMC_TDF_(1)); | |
123 | ||
124 | /* Configure Reset signal as output */ | |
125 | at91_set_gpio_output(AT91_PIN_PC10, 0); | |
126 | ||
127 | /* Configure Interrupt pin as input, no pull-up */ | |
128 | at91_set_gpio_input(AT91_PIN_PC11, 0); | |
129 | ||
130 | platform_device_register(&at91sam9261_dm9000_device); | |
131 | } | |
132 | #else | |
133 | static void __init ek_add_device_dm9000(void) {} | |
134 | #endif /* CONFIG_DM9000 */ | |
135 | ||
136 | ||
137 | /* | |
138 | * USB Host Port | |
139 | */ | |
140 | static struct at91_usbh_data __initdata ek_usbh_data = { | |
141 | .ports = 2, | |
142 | }; | |
143 | ||
144 | ||
145 | /* | |
146 | * USB Device Port | |
147 | */ | |
148 | static struct at91_udc_data __initdata ek_udc_data = { | |
149 | .vbus_pin = AT91_PIN_PB29, | |
150 | .pullup_pin = 0, /* pull-up driven by UDC */ | |
151 | }; | |
152 | ||
153 | ||
154 | /* | |
155 | * MCI (SD/MMC) | |
156 | */ | |
157 | static struct at91_mmc_data __initdata ek_mmc_data = { | |
158 | .wire4 = 1, | |
159 | // .det_pin = ... not connected | |
160 | // .wp_pin = ... not connected | |
161 | // .vcc_pin = ... not connected | |
162 | }; | |
163 | ||
164 | ||
165 | /* | |
166 | * NAND flash | |
167 | */ | |
168 | static struct mtd_partition __initdata ek_nand_partition[] = { | |
169 | { | |
170 | .name = "Partition 1", | |
171 | .offset = 0, | |
172 | .size = 256 * 1024, | |
173 | }, | |
174 | { | |
175 | .name = "Partition 2", | |
176 | .offset = 256 * 1024 , | |
177 | .size = MTDPART_SIZ_FULL, | |
178 | }, | |
179 | }; | |
180 | ||
cdea4606 | 181 | static struct mtd_partition * __init nand_partitions(int size, int *num_partitions) |
022cbd73 AV |
182 | { |
183 | *num_partitions = ARRAY_SIZE(ek_nand_partition); | |
184 | return ek_nand_partition; | |
185 | } | |
186 | ||
187 | static struct at91_nand_data __initdata ek_nand_data = { | |
188 | .ale = 22, | |
189 | .cle = 21, | |
190 | // .det_pin = ... not connected | |
191 | .rdy_pin = AT91_PIN_PC15, | |
192 | .enable_pin = AT91_PIN_PC14, | |
193 | .partition_info = nand_partitions, | |
194 | #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16) | |
195 | .bus_width_16 = 1, | |
196 | #else | |
197 | .bus_width_16 = 0, | |
198 | #endif | |
199 | }; | |
200 | ||
23522728 AV |
201 | /* |
202 | * ADS7846 Touchscreen | |
203 | */ | |
204 | #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) | |
205 | ||
206 | static int ads7843_pendown_state(void) | |
207 | { | |
208 | return !at91_get_gpio_value(AT91_PIN_PC2); /* Touchscreen PENIRQ */ | |
209 | } | |
210 | ||
211 | static struct ads7846_platform_data ads_info = { | |
212 | .model = 7843, | |
213 | .x_min = 150, | |
214 | .x_max = 3830, | |
215 | .y_min = 190, | |
216 | .y_max = 3830, | |
217 | .vref_delay_usecs = 100, | |
218 | .x_plate_ohms = 450, | |
219 | .y_plate_ohms = 250, | |
220 | .pressure_max = 15000, | |
221 | .debounce_max = 1, | |
222 | .debounce_rep = 0, | |
223 | .debounce_tol = (~0), | |
224 | .get_pendown_state = ads7843_pendown_state, | |
225 | }; | |
226 | ||
227 | static void __init ek_add_device_ts(void) | |
228 | { | |
229 | at91_set_B_periph(AT91_PIN_PC2, 1); /* External IRQ0, with pullup */ | |
230 | at91_set_gpio_input(AT91_PIN_PA11, 1); /* Touchscreen BUSY signal */ | |
231 | } | |
232 | #else | |
233 | static void __init ek_add_device_ts(void) {} | |
234 | #endif | |
235 | ||
022cbd73 AV |
236 | /* |
237 | * SPI devices | |
238 | */ | |
239 | static struct spi_board_info ek_spi_devices[] = { | |
240 | { /* DataFlash chip */ | |
241 | .modalias = "mtd_dataflash", | |
242 | .chip_select = 0, | |
243 | .max_speed_hz = 15 * 1000 * 1000, | |
244 | .bus_num = 0, | |
245 | }, | |
23522728 AV |
246 | #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) |
247 | { | |
248 | .modalias = "ads7846", | |
249 | .chip_select = 2, | |
250 | .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */ | |
251 | .bus_num = 0, | |
252 | .platform_data = &ads_info, | |
253 | .irq = AT91SAM9261_ID_IRQ0, | |
254 | }, | |
255 | #endif | |
022cbd73 AV |
256 | #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD) |
257 | { /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */ | |
258 | .modalias = "mtd_dataflash", | |
259 | .chip_select = 3, | |
260 | .max_speed_hz = 15 * 1000 * 1000, | |
261 | .bus_num = 0, | |
262 | }, | |
23522728 | 263 | #elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE) |
022cbd73 | 264 | { /* AT73C213 DAC */ |
23522728 | 265 | .modalias = "at73c213", |
022cbd73 AV |
266 | .chip_select = 3, |
267 | .max_speed_hz = 10 * 1000 * 1000, | |
268 | .bus_num = 0, | |
269 | }, | |
270 | #endif | |
271 | }; | |
272 | ||
273 | ||
274 | static void __init ek_board_init(void) | |
275 | { | |
276 | /* Serial */ | |
277 | at91_add_device_serial(); | |
278 | /* USB Host */ | |
279 | at91_add_device_usbh(&ek_usbh_data); | |
280 | /* USB Device */ | |
281 | at91_add_device_udc(&ek_udc_data); | |
282 | /* I2C */ | |
283 | at91_add_device_i2c(); | |
284 | /* NAND */ | |
285 | at91_add_device_nand(&ek_nand_data); | |
286 | /* DM9000 ethernet */ | |
287 | ek_add_device_dm9000(); | |
288 | ||
289 | /* spi0 and mmc/sd share the same PIO pins */ | |
290 | #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE) | |
291 | /* SPI */ | |
292 | at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices)); | |
23522728 AV |
293 | /* Touchscreen */ |
294 | ek_add_device_ts(); | |
022cbd73 AV |
295 | #else |
296 | /* MMC */ | |
d0760b3b | 297 | at91_add_device_mmc(0, &ek_mmc_data); |
022cbd73 AV |
298 | #endif |
299 | } | |
300 | ||
301 | MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK") | |
302 | /* Maintainer: Atmel */ | |
303 | .phys_io = AT91_BASE_SYS, | |
304 | .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc, | |
305 | .boot_params = AT91_SDRAM_BASE + 0x100, | |
306 | .timer = &at91sam926x_timer, | |
307 | .map_io = ek_map_io, | |
308 | .init_irq = ek_init_irq, | |
309 | .init_machine = ek_board_init, | |
310 | MACHINE_END |