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1 | /* |
2 | * linux/arch/arm/mach-at91/board-at572d940hf_ek.c |
3 | * |
4 | * Copyright (C) 2008 Atmel Antonio R. Costa <costa.antonior@gmail.com> |
5 | * Copyright (C) 2005 SAN People |
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> |
28 | #include <linux/spi/ds1305.h> |
29 | #include <linux/irq.h> |
30 | #include <linux/mtd/physmap.h> |
31 | |
32 | #include <mach/hardware.h> |
33 | #include <asm/setup.h> |
34 | #include <asm/mach-types.h> |
35 | #include <asm/irq.h> |
36 | |
37 | #include <asm/mach/arch.h> |
38 | #include <asm/mach/map.h> |
39 | #include <asm/mach/irq.h> |
40 | |
41 | #include <mach/board.h> |
42 | #include <mach/gpio.h> |
43 | #include <mach/at91sam9_smc.h> |
44 | |
45 | #include "sam9_smc.h" |
46 | #include "generic.h" |
47 | |
48 | |
49 | static void __init eb_map_io(void) |
50 | { |
51 | /* Initialize processor: 12.500 MHz crystal */ |
52 | at572d940hf_initialize(12000000); |
53 | |
54 | /* DBGU on ttyS0. (Rx & Tx only) */ |
55 | at91_register_uart(0, 0, 0); |
56 | |
57 | /* USART0 on ttyS1. (Rx & Tx only) */ |
58 | at91_register_uart(AT572D940HF_ID_US0, 1, 0); |
59 | |
60 | /* USART1 on ttyS2. (Rx & Tx only) */ |
61 | at91_register_uart(AT572D940HF_ID_US1, 2, 0); |
62 | |
63 | /* USART2 on ttyS3. (Tx & Rx only */ |
64 | at91_register_uart(AT572D940HF_ID_US2, 3, 0); |
65 | |
66 | /* set serial console to ttyS0 (ie, DBGU) */ |
67 | at91_set_serial_console(0); |
68 | } |
69 | |
70 | static void __init eb_init_irq(void) |
71 | { |
72 | at572d940hf_init_interrupts(NULL); |
73 | } |
74 | |
75 | |
76 | /* |
77 | * USB Host Port |
78 | */ |
79 | static struct at91_usbh_data __initdata eb_usbh_data = { |
80 | .ports = 2, |
81 | }; |
82 | |
83 | |
84 | /* |
85 | * USB Device Port |
86 | */ |
87 | static struct at91_udc_data __initdata eb_udc_data = { |
88 | .vbus_pin = 0, /* no VBUS detection,UDC always on */ |
89 | .pullup_pin = 0, /* pull-up driven by UDC */ |
90 | }; |
91 | |
92 | |
93 | /* |
94 | * MCI (SD/MMC) |
95 | */ |
96 | static struct at91_mmc_data __initdata eb_mmc_data = { |
97 | .wire4 = 1, |
98 | /* .det_pin = ... not connected */ |
99 | /* .wp_pin = ... not connected */ |
100 | /* .vcc_pin = ... not connected */ |
101 | }; |
102 | |
103 | |
104 | /* |
105 | * MACB Ethernet device |
106 | */ |
107 | static struct at91_eth_data __initdata eb_eth_data = { |
108 | .phy_irq_pin = AT91_PIN_PB25, |
109 | .is_rmii = 1, |
110 | }; |
111 | |
112 | /* |
113 | * NOR flash |
114 | */ |
115 | |
116 | static struct mtd_partition eb_nor_partitions[] = { |
117 | { |
118 | .name = "Raw Environment", |
119 | .offset = 0, |
120 | .size = SZ_4M, |
121 | .mask_flags = 0, |
122 | }, |
123 | { |
124 | .name = "OS FS", |
125 | .offset = MTDPART_OFS_APPEND, |
126 | .size = 3 * SZ_1M, |
127 | .mask_flags = 0, |
128 | }, |
129 | { |
130 | .name = "APP FS", |
131 | .offset = MTDPART_OFS_APPEND, |
132 | .size = MTDPART_SIZ_FULL, |
133 | .mask_flags = 0, |
134 | }, |
135 | }; |
136 | |
137 | static void nor_flash_set_vpp(struct map_info* mi, int i) { |
138 | }; |
139 | |
140 | static struct physmap_flash_data nor_flash_data = { |
141 | .width = 4, |
142 | .parts = eb_nor_partitions, |
143 | .nr_parts = ARRAY_SIZE(eb_nor_partitions), |
144 | .set_vpp = nor_flash_set_vpp, |
145 | }; |
146 | |
147 | static struct resource nor_flash_resources[] = { |
148 | { |
149 | .start = AT91_CHIPSELECT_0, |
150 | .end = AT91_CHIPSELECT_0 + SZ_16M - 1, |
151 | .flags = IORESOURCE_MEM, |
152 | }, |
153 | }; |
154 | |
155 | static struct platform_device nor_flash = { |
156 | .name = "physmap-flash", |
157 | .id = 0, |
158 | .dev = { |
159 | .platform_data = &nor_flash_data, |
160 | }, |
161 | .resource = nor_flash_resources, |
162 | .num_resources = ARRAY_SIZE(nor_flash_resources), |
163 | }; |
164 | |
165 | static struct sam9_smc_config __initdata eb_nor_smc_config = { |
166 | .ncs_read_setup = 1, |
167 | .nrd_setup = 1, |
168 | .ncs_write_setup = 1, |
169 | .nwe_setup = 1, |
170 | |
171 | .ncs_read_pulse = 7, |
172 | .nrd_pulse = 7, |
173 | .ncs_write_pulse = 7, |
174 | .nwe_pulse = 7, |
175 | |
176 | .read_cycle = 9, |
177 | .write_cycle = 9, |
178 | |
179 | .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_32, |
180 | .tdf_cycles = 1, |
181 | }; |
182 | |
183 | static void __init eb_add_device_nor(void) |
184 | { |
185 | /* configure chip-select 0 (NOR) */ |
186 | sam9_smc_configure(0, &eb_nor_smc_config); |
187 | platform_device_register(&nor_flash); |
188 | } |
189 | |
190 | /* |
191 | * NAND flash |
192 | */ |
193 | static struct mtd_partition __initdata eb_nand_partition[] = { |
194 | { |
195 | .name = "Partition 1", |
196 | .offset = 0, |
197 | .size = SZ_16M, |
198 | }, |
199 | { |
200 | .name = "Partition 2", |
201 | .offset = MTDPART_OFS_NXTBLK, |
202 | .size = MTDPART_SIZ_FULL, |
203 | } |
204 | }; |
205 | |
206 | static struct mtd_partition * __init nand_partitions(int size, int *num_partitions) |
207 | { |
208 | *num_partitions = ARRAY_SIZE(eb_nand_partition); |
209 | return eb_nand_partition; |
210 | } |
211 | |
212 | static struct atmel_nand_data __initdata eb_nand_data = { |
213 | .ale = 22, |
214 | .cle = 21, |
215 | /* .det_pin = ... not connected */ |
216 | /* .rdy_pin = AT91_PIN_PC16, */ |
217 | .enable_pin = AT91_PIN_PA15, |
218 | .partition_info = nand_partitions, |
219 | #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16) |
220 | .bus_width_16 = 1, |
221 | #else |
222 | .bus_width_16 = 0, |
223 | #endif |
224 | }; |
225 | |
226 | static struct sam9_smc_config __initdata eb_nand_smc_config = { |
227 | .ncs_read_setup = 0, |
228 | .nrd_setup = 0, |
229 | .ncs_write_setup = 1, |
230 | .nwe_setup = 1, |
231 | |
232 | .ncs_read_pulse = 3, |
233 | .nrd_pulse = 3, |
234 | .ncs_write_pulse = 3, |
235 | .nwe_pulse = 3, |
236 | |
237 | .read_cycle = 5, |
238 | .write_cycle = 5, |
239 | |
240 | .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE, |
241 | .tdf_cycles = 12, |
242 | }; |
243 | |
244 | static void __init eb_add_device_nand(void) |
245 | { |
246 | /* setup bus-width (8 or 16) */ |
247 | if (eb_nand_data.bus_width_16) |
248 | eb_nand_smc_config.mode |= AT91_SMC_DBW_16; |
249 | else |
250 | eb_nand_smc_config.mode |= AT91_SMC_DBW_8; |
251 | |
252 | /* configure chip-select 3 (NAND) */ |
253 | sam9_smc_configure(3, &eb_nand_smc_config); |
254 | |
255 | at91_add_device_nand(&eb_nand_data); |
256 | } |
257 | |
258 | |
259 | /* |
260 | * SPI devices |
261 | */ |
262 | static struct resource rtc_resources[] = { |
263 | [0] = { |
264 | .start = AT572D940HF_ID_IRQ1, |
265 | .end = AT572D940HF_ID_IRQ1, |
266 | .flags = IORESOURCE_IRQ, |
267 | }, |
268 | }; |
269 | |
270 | static struct ds1305_platform_data ds1306_data = { |
271 | .is_ds1306 = true, |
272 | .en_1hz = false, |
273 | }; |
274 | |
275 | static struct spi_board_info eb_spi_devices[] = { |
276 | { /* RTC Dallas DS1306 */ |
277 | .modalias = "rtc-ds1305", |
278 | .chip_select = 3, |
279 | .mode = SPI_CS_HIGH | SPI_CPOL | SPI_CPHA, |
280 | .max_speed_hz = 500000, |
281 | .bus_num = 0, |
282 | .irq = AT572D940HF_ID_IRQ1, |
283 | .platform_data = (void *) &ds1306_data, |
284 | }, |
285 | #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD) |
286 | { /* Dataflash card */ |
287 | .modalias = "mtd_dataflash", |
288 | .chip_select = 0, |
289 | .max_speed_hz = 15 * 1000 * 1000, |
290 | .bus_num = 0, |
291 | }, |
292 | #endif |
293 | }; |
294 | |
295 | static void __init eb_board_init(void) |
296 | { |
297 | /* Serial */ |
298 | at91_add_device_serial(); |
299 | /* USB Host */ |
300 | at91_add_device_usbh(&eb_usbh_data); |
301 | /* USB Device */ |
302 | at91_add_device_udc(&eb_udc_data); |
303 | /* I2C */ |
304 | at91_add_device_i2c(NULL, 0); |
305 | /* NOR */ |
306 | eb_add_device_nor(); |
307 | /* NAND */ |
308 | eb_add_device_nand(); |
309 | /* SPI */ |
310 | at91_add_device_spi(eb_spi_devices, ARRAY_SIZE(eb_spi_devices)); |
311 | /* MMC */ |
312 | at91_add_device_mmc(0, &eb_mmc_data); |
313 | /* Ethernet */ |
314 | at91_add_device_eth(&eb_eth_data); |
315 | /* mAgic */ |
316 | at91_add_device_mAgic(); |
317 | } |
318 | |
319 | MACHINE_START(AT572D940HFEB, "Atmel AT91D940HF-EB") |
320 | /* Maintainer: Atmel <costa.antonior@gmail.com> */ |
321 | .boot_params = AT91_SDRAM_BASE + 0x100, |
322 | .timer = &at91sam926x_timer, |
323 | .map_io = eb_map_io, |
324 | .init_irq = eb_init_irq, |
325 | .init_machine = eb_board_init, |
326 | MACHINE_END |
327 |
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