1 /*
2 * Board Info File for the BlackStamp
3 *
4 * Copyright 2004-2008 Analog Devices Inc.
5 * 2008 Benjamin Matthews <bmat@lle.rochester.edu>
6 * 2005 National ICT Australia (NICTA)
7 * Aidan Williams <aidan@nicta.com.au>
8 *
9 * More info about the BlackStamp at:
10 * http://blackfin.uclinux.org/gf/project/blackstamp/
11 *
12 * Licensed under the GPL-2 or later.
13 */
14
15 #include <linux/device.h>
16 #include <linux/platform_device.h>
17 #include <linux/mtd/mtd.h>
18 #include <linux/mtd/partitions.h>
19 #include <linux/mtd/physmap.h>
20 #include <linux/spi/spi.h>
21 #include <linux/spi/flash.h>
22 #include <linux/irq.h>
23 #include <linux/gpio.h>
24 #include <linux/i2c.h>
25 #include <asm/dma.h>
26 #include <asm/bfin5xx_spi.h>
27 #include <asm/portmux.h>
28 #include <asm/dpmc.h>
29
30 /*
31 * Name the Board for the /proc/cpuinfo
32 */
33 const char bfin_board_name[] = "BlackStamp";
34
35 #if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
36 static struct platform_device rtc_device = {
37 .name = "rtc-bfin",
38 .id = -1,
39 };
40 #endif
41
42 /*
43 * Driver needs to know address, irq and flag pin.
44 */
45 #if IS_ENABLED(CONFIG_SMC91X)
46 #include <linux/smc91x.h>
47
48 static struct smc91x_platdata smc91x_info = {
49 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
50 .leda = RPC_LED_100_10,
51 .ledb = RPC_LED_TX_RX,
52 };
53
54 static struct resource smc91x_resources[] = {
55 {
56 .name = "smc91x-regs",
57 .start = 0x20300300,
58 .end = 0x20300300 + 16,
59 .flags = IORESOURCE_MEM,
60 }, {
61 .start = IRQ_PF3,
62 .end = IRQ_PF3,
63 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
64 },
65 };
66
67 static struct platform_device smc91x_device = {
68 .name = "smc91x",
69 .id = 0,
70 .num_resources = ARRAY_SIZE(smc91x_resources),
71 .resource = smc91x_resources,
72 .dev = {
73 .platform_data = &smc91x_info,
74 },
75 };
76 #endif
77
78 #if IS_ENABLED(CONFIG_MTD_M25P80)
79 static struct mtd_partition bfin_spi_flash_partitions[] = {
80 {
81 .name = "bootloader(spi)",
82 .size = 0x00040000,
83 .offset = 0,
84 .mask_flags = MTD_CAP_ROM
85 }, {
86 .name = "linux kernel(spi)",
87 .size = 0x180000,
88 .offset = MTDPART_OFS_APPEND,
89 }, {
90 .name = "file system(spi)",
91 .size = MTDPART_SIZ_FULL,
92 .offset = MTDPART_OFS_APPEND,
93 }
94 };
95
96 static struct flash_platform_data bfin_spi_flash_data = {
97 .name = "m25p80",
98 .parts = bfin_spi_flash_partitions,
99 .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
100 .type = "m25p64",
101 };
102
103 /* SPI flash chip (m25p64) */
104 static struct bfin5xx_spi_chip spi_flash_chip_info = {
105 .enable_dma = 0, /* use dma transfer with this chip*/
106 };
107 #endif
108
109 #if IS_ENABLED(CONFIG_MMC_SPI)
110 static struct bfin5xx_spi_chip mmc_spi_chip_info = {
111 .enable_dma = 0,
112 };
113 #endif
114
115 static struct spi_board_info bfin_spi_board_info[] __initdata = {
116 #if IS_ENABLED(CONFIG_MTD_M25P80)
117 {
118 /* the modalias must be the same as spi device driver name */
119 .modalias = "m25p80", /* Name of spi_driver for this device */
120 .max_speed_hz = 20000000, /* max spi clock (SCK) speed in HZ */
121 .bus_num = 0, /* Framework bus number */
122 .chip_select = 2, /* Framework chip select. */
123 .platform_data = &bfin_spi_flash_data,
124 .controller_data = &spi_flash_chip_info,
125 .mode = SPI_MODE_3,
126 },
127 #endif
128
129 #if IS_ENABLED(CONFIG_MMC_SPI)
130 {
131 .modalias = "mmc_spi",
132 .max_speed_hz = 20000000, /* max spi clock (SCK) speed in HZ */
133 .bus_num = 0,
134 .chip_select = 5,
135 .controller_data = &mmc_spi_chip_info,
136 .mode = SPI_MODE_3,
137 },
138 #endif
139
140 #if IS_ENABLED(CONFIG_SPI_SPIDEV)
141 {
142 .modalias = "spidev",
143 .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */
144 .bus_num = 0,
145 .chip_select = 7,
146 },
147 #endif
148 };
149
150 #if IS_ENABLED(CONFIG_SPI_BFIN5XX)
151 /* SPI (0) */
152 static struct resource bfin_spi0_resource[] = {
153 [0] = {
154 .start = SPI0_REGBASE,
155 .end = SPI0_REGBASE + 0xFF,
156 .flags = IORESOURCE_MEM,
157 },
158 [1] = {
159 .start = CH_SPI,
160 .end = CH_SPI,
161 .flags = IORESOURCE_DMA,
162 },
163 [2] = {
164 .start = IRQ_SPI,
165 .end = IRQ_SPI,
166 .flags = IORESOURCE_IRQ,
167 }
168 };
169
170 /* SPI controller data */
171 static struct bfin5xx_spi_master bfin_spi0_info = {
172 .num_chipselect = 8,
173 .enable_dma = 1, /* master has the ability to do dma transfer */
174 .pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
175 };
176
177 static struct platform_device bfin_spi0_device = {
178 .name = "bfin-spi",
179 .id = 0, /* Bus number */
180 .num_resources = ARRAY_SIZE(bfin_spi0_resource),
181 .resource = bfin_spi0_resource,
182 .dev = {
183 .platform_data = &bfin_spi0_info, /* Passed to driver */
184 },
185 };
186 #endif /* spi master and devices */
187
188 #if IS_ENABLED(CONFIG_SERIAL_BFIN)
189 #ifdef CONFIG_SERIAL_BFIN_UART0
190 static struct resource bfin_uart0_resources[] = {
191 {
192 .start = BFIN_UART_THR,
193 .end = BFIN_UART_GCTL+2,
194 .flags = IORESOURCE_MEM,
195 },
196 {
197 .start = IRQ_UART0_TX,
198 .end = IRQ_UART0_TX,
199 .flags = IORESOURCE_IRQ,
200 },
201 {
202 .start = IRQ_UART0_RX,
203 .end = IRQ_UART0_RX,
204 .flags = IORESOURCE_IRQ,
205 },
206 {
207 .start = IRQ_UART0_ERROR,
208 .end = IRQ_UART0_ERROR,
209 .flags = IORESOURCE_IRQ,
210 },
211 {
212 .start = CH_UART0_TX,
213 .end = CH_UART0_TX,
214 .flags = IORESOURCE_DMA,
215 },
216 {
217 .start = CH_UART0_RX,
218 .end = CH_UART0_RX,
219 .flags = IORESOURCE_DMA,
220 },
221 };
222
223 static unsigned short bfin_uart0_peripherals[] = {
224 P_UART0_TX, P_UART0_RX, 0
225 };
226
227 static struct platform_device bfin_uart0_device = {
228 .name = "bfin-uart",
229 .id = 0,
230 .num_resources = ARRAY_SIZE(bfin_uart0_resources),
231 .resource = bfin_uart0_resources,
232 .dev = {
233 .platform_data = &bfin_uart0_peripherals, /* Passed to driver */
234 },
235 };
236 #endif
237 #endif
238
239 #if IS_ENABLED(CONFIG_BFIN_SIR)
240 #ifdef CONFIG_BFIN_SIR0
241 static struct resource bfin_sir0_resources[] = {
242 {
243 .start = 0xFFC00400,
244 .end = 0xFFC004FF,
245 .flags = IORESOURCE_MEM,
246 },
247 {
248 .start = IRQ_UART0_RX,
249 .end = IRQ_UART0_RX+1,
250 .flags = IORESOURCE_IRQ,
251 },
252 {
253 .start = CH_UART0_RX,
254 .end = CH_UART0_RX+1,
255 .flags = IORESOURCE_DMA,
256 },
257 };
258
259 static struct platform_device bfin_sir0_device = {
260 .name = "bfin_sir",
261 .id = 0,
262 .num_resources = ARRAY_SIZE(bfin_sir0_resources),
263 .resource = bfin_sir0_resources,
264 };
265 #endif
266 #endif
267
268 #if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
269 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
270 static struct resource bfin_sport0_uart_resources[] = {
271 {
272 .start = SPORT0_TCR1,
273 .end = SPORT0_MRCS3+4,
274 .flags = IORESOURCE_MEM,
275 },
276 {
277 .start = IRQ_SPORT0_RX,
278 .end = IRQ_SPORT0_RX+1,
279 .flags = IORESOURCE_IRQ,
280 },
281 {
282 .start = IRQ_SPORT0_ERROR,
283 .end = IRQ_SPORT0_ERROR,
284 .flags = IORESOURCE_IRQ,
285 },
286 };
287
288 static unsigned short bfin_sport0_peripherals[] = {
289 P_SPORT0_TFS, P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS,
290 P_SPORT0_DRPRI, P_SPORT0_RSCLK, 0
291 };
292
293 static struct platform_device bfin_sport0_uart_device = {
294 .name = "bfin-sport-uart",
295 .id = 0,
296 .num_resources = ARRAY_SIZE(bfin_sport0_uart_resources),
297 .resource = bfin_sport0_uart_resources,
298 .dev = {
299 .platform_data = &bfin_sport0_peripherals, /* Passed to driver */
300 },
301 };
302 #endif
303 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
304 static struct resource bfin_sport1_uart_resources[] = {
305 {
306 .start = SPORT1_TCR1,
307 .end = SPORT1_MRCS3+4,
308 .flags = IORESOURCE_MEM,
309 },
310 {
311 .start = IRQ_SPORT1_RX,
312 .end = IRQ_SPORT1_RX+1,
313 .flags = IORESOURCE_IRQ,
314 },
315 {
316 .start = IRQ_SPORT1_ERROR,
317 .end = IRQ_SPORT1_ERROR,
318 .flags = IORESOURCE_IRQ,
319 },
320 };
321
322 static unsigned short bfin_sport1_peripherals[] = {
323 P_SPORT1_TFS, P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_RFS,
324 P_SPORT1_DRPRI, P_SPORT1_RSCLK, 0
325 };
326
327 static struct platform_device bfin_sport1_uart_device = {
328 .name = "bfin-sport-uart",
329 .id = 1,
330 .num_resources = ARRAY_SIZE(bfin_sport1_uart_resources),
331 .resource = bfin_sport1_uart_resources,
332 .dev = {
333 .platform_data = &bfin_sport1_peripherals, /* Passed to driver */
334 },
335 };
336 #endif
337 #endif
338
339 #if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
340 #include <linux/input.h>
341 #include <linux/gpio_keys.h>
342
343 static struct gpio_keys_button bfin_gpio_keys_table[] = {
344 {BTN_0, GPIO_PF4, 0, "gpio-keys: BTN0"},
345 {BTN_1, GPIO_PF5, 0, "gpio-keys: BTN1"},
346 {BTN_2, GPIO_PF6, 0, "gpio-keys: BTN2"},
347 }; /* Mapped to the first three PF Test Points */
348
349 static struct gpio_keys_platform_data bfin_gpio_keys_data = {
350 .buttons = bfin_gpio_keys_table,
351 .nbuttons = ARRAY_SIZE(bfin_gpio_keys_table),
352 };
353
354 static struct platform_device bfin_device_gpiokeys = {
355 .name = "gpio-keys",
356 .dev = {
357 .platform_data = &bfin_gpio_keys_data,
358 },
359 };
360 #endif
361
362 #if IS_ENABLED(CONFIG_I2C_GPIO)
363 #include <linux/i2c-gpio.h>
364
365 static struct i2c_gpio_platform_data i2c_gpio_data = {
366 .sda_pin = GPIO_PF8,
367 .scl_pin = GPIO_PF9,
368 .sda_is_open_drain = 0,
369 .scl_is_open_drain = 0,
370 .udelay = 40,
371 }; /* This hasn't actually been used these pins
372 * are (currently) free pins on the expansion connector */
373
374 static struct platform_device i2c_gpio_device = {
375 .name = "i2c-gpio",
376 .id = 0,
377 .dev = {
378 .platform_data = &i2c_gpio_data,
379 },
380 };
381 #endif
382
383 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
384 };
385
386 static const unsigned int cclk_vlev_datasheet[] =
387 {
388 VRPAIR(VLEV_085, 250000000),
389 VRPAIR(VLEV_090, 376000000),
390 VRPAIR(VLEV_095, 426000000),
391 VRPAIR(VLEV_100, 426000000),
392 VRPAIR(VLEV_105, 476000000),
393 VRPAIR(VLEV_110, 476000000),
394 VRPAIR(VLEV_115, 476000000),
395 VRPAIR(VLEV_120, 600000000),
396 VRPAIR(VLEV_125, 600000000),
397 VRPAIR(VLEV_130, 600000000),
398 };
399
400 static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
401 .tuple_tab = cclk_vlev_datasheet,
402 .tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
403 .vr_settling_time = 25 /* us */,
404 };
405
406 static struct platform_device bfin_dpmc = {
407 .name = "bfin dpmc",
408 .dev = {
409 .platform_data = &bfin_dmpc_vreg_data,
410 },
411 };
412
413 static struct platform_device *stamp_devices[] __initdata = {
414
415 &bfin_dpmc,
416
417 #if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
418 &rtc_device,
419 #endif
420
421 #if IS_ENABLED(CONFIG_SMC91X)
422 &smc91x_device,
423 #endif
424
425
426 #if IS_ENABLED(CONFIG_SPI_BFIN5XX)
427 &bfin_spi0_device,
428 #endif
429
430 #if IS_ENABLED(CONFIG_SERIAL_BFIN)
431 #ifdef CONFIG_SERIAL_BFIN_UART0
432 &bfin_uart0_device,
433 #endif
434 #endif
435
436 #if IS_ENABLED(CONFIG_BFIN_SIR)
437 #ifdef CONFIG_BFIN_SIR0
438 &bfin_sir0_device,
439 #endif
440 #endif
441
442 #if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
443 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
444 &bfin_sport0_uart_device,
445 #endif
446 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
447 &bfin_sport1_uart_device,
448 #endif
449 #endif
450
451 #if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
452 &bfin_device_gpiokeys,
453 #endif
454
455 #if IS_ENABLED(CONFIG_I2C_GPIO)
456 &i2c_gpio_device,
457 #endif
458 };
459
blackstamp_init(void)460 static int __init blackstamp_init(void)
461 {
462 int ret;
463
464 printk(KERN_INFO "%s(): registering device resources\n", __func__);
465
466 i2c_register_board_info(0, bfin_i2c_board_info,
467 ARRAY_SIZE(bfin_i2c_board_info));
468
469 ret = platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
470 if (ret < 0)
471 return ret;
472
473 #if IS_ENABLED(CONFIG_SMC91X)
474 /*
475 * setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC.
476 * the bfin-async-map driver takes care of flipping between
477 * flash and ethernet when necessary.
478 */
479 ret = gpio_request(GPIO_PF0, "enet_cpld");
480 if (!ret) {
481 gpio_direction_output(GPIO_PF0, 1);
482 gpio_free(GPIO_PF0);
483 }
484 #endif
485
486 spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
487 return 0;
488 }
489
490 arch_initcall(blackstamp_init);
491
492 static struct platform_device *stamp_early_devices[] __initdata = {
493 #if defined(CONFIG_SERIAL_BFIN_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
494 #ifdef CONFIG_SERIAL_BFIN_UART0
495 &bfin_uart0_device,
496 #endif
497 #endif
498
499 #if defined(CONFIG_SERIAL_BFIN_SPORT_CONSOLE)
500 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
501 &bfin_sport0_uart_device,
502 #endif
503 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
504 &bfin_sport1_uart_device,
505 #endif
506 #endif
507 };
508
native_machine_early_platform_add_devices(void)509 void __init native_machine_early_platform_add_devices(void)
510 {
511 printk(KERN_INFO "register early platform devices\n");
512 early_platform_add_devices(stamp_early_devices,
513 ARRAY_SIZE(stamp_early_devices));
514 }
515