1 /*
2 * File: arch/blackfin/mach-bf533/blackstamp.c
3 * Based on: arch/blackfin/mach-bf533/stamp.c
4 * Author: Benjamin Matthews <bmat@lle.rochester.edu>
5 * Aidan Williams <aidan@nicta.com.au>
6 *
7 * Created: 2008
8 * Description: Board Info File for the BlackStamp
9 *
10 * Copyright 2005 National ICT Australia (NICTA)
11 * Copyright 2004-2008 Analog Devices Inc.
12 *
13 * Enter bugs at http://blackfin.uclinux.org/
14 *
15 * More info about the BlackStamp at:
16 * http://blackfin.uclinux.org/gf/project/blackstamp/
17 *
18 * Licensed under the GPL-2 or later.
19 */
20
21 #include <linux/device.h>
22 #include <linux/platform_device.h>
23 #include <linux/mtd/mtd.h>
24 #include <linux/mtd/partitions.h>
25 #include <linux/mtd/physmap.h>
26 #include <linux/spi/spi.h>
27 #include <linux/spi/flash.h>
28 #include <linux/irq.h>
29 #include <linux/i2c.h>
30 #include <asm/dma.h>
31 #include <asm/bfin5xx_spi.h>
32 #include <asm/portmux.h>
33 #include <asm/dpmc.h>
34
35 /*
36 * Name the Board for the /proc/cpuinfo
37 */
38 const char bfin_board_name[] = "BlackStamp";
39
40 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
41 static struct platform_device rtc_device = {
42 .name = "rtc-bfin",
43 .id = -1,
44 };
45 #endif
46
47 /*
48 * Driver needs to know address, irq and flag pin.
49 */
50 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
51 static struct resource smc91x_resources[] = {
52 {
53 .name = "smc91x-regs",
54 .start = 0x20300300,
55 .end = 0x20300300 + 16,
56 .flags = IORESOURCE_MEM,
57 }, {
58 .start = IRQ_PF3,
59 .end = IRQ_PF3,
60 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
61 },
62 };
63
64 static struct platform_device smc91x_device = {
65 .name = "smc91x",
66 .id = 0,
67 .num_resources = ARRAY_SIZE(smc91x_resources),
68 .resource = smc91x_resources,
69 };
70 #endif
71
72 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
73 static struct mtd_partition bfin_spi_flash_partitions[] = {
74 {
75 .name = "bootloader(spi)",
76 .size = 0x00040000,
77 .offset = 0,
78 .mask_flags = MTD_CAP_ROM
79 }, {
80 .name = "linux kernel(spi)",
81 .size = 0x180000,
82 .offset = MTDPART_OFS_APPEND,
83 }, {
84 .name = "file system(spi)",
85 .size = MTDPART_SIZ_FULL,
86 .offset = MTDPART_OFS_APPEND,
87 }
88 };
89
90 static struct flash_platform_data bfin_spi_flash_data = {
91 .name = "m25p80",
92 .parts = bfin_spi_flash_partitions,
93 .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
94 .type = "m25p64",
95 };
96
97 /* SPI flash chip (m25p64) */
98 static struct bfin5xx_spi_chip spi_flash_chip_info = {
99 .enable_dma = 0, /* use dma transfer with this chip*/
100 .bits_per_word = 8,
101 };
102 #endif
103
104 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
105 static struct bfin5xx_spi_chip mmc_spi_chip_info = {
106 .enable_dma = 0,
107 .bits_per_word = 8,
108 };
109 #endif
110
111 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
112 static struct bfin5xx_spi_chip spidev_chip_info = {
113 .enable_dma = 0,
114 .bits_per_word = 8,
115 };
116 #endif
117
118 static struct spi_board_info bfin_spi_board_info[] __initdata = {
119 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
120 {
121 /* the modalias must be the same as spi device driver name */
122 .modalias = "m25p80", /* Name of spi_driver for this device */
123 .max_speed_hz = 20000000, /* max spi clock (SCK) speed in HZ */
124 .bus_num = 0, /* Framework bus number */
125 .chip_select = 2, /* Framework chip select. */
126 .platform_data = &bfin_spi_flash_data,
127 .controller_data = &spi_flash_chip_info,
128 .mode = SPI_MODE_3,
129 },
130 #endif
131
132 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
133 {
134 .modalias = "mmc_spi",
135 .max_speed_hz = 20000000, /* max spi clock (SCK) speed in HZ */
136 .bus_num = 0,
137 .chip_select = 5,
138 .controller_data = &mmc_spi_chip_info,
139 .mode = SPI_MODE_3,
140 },
141 #endif
142
143 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
144 {
145 .modalias = "spidev",
146 .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */
147 .bus_num = 0,
148 .chip_select = 7,
149 .controller_data = &spidev_chip_info,
150 },
151 #endif
152 };
153
154 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
155 /* SPI (0) */
156 static struct resource bfin_spi0_resource[] = {
157 [0] = {
158 .start = SPI0_REGBASE,
159 .end = SPI0_REGBASE + 0xFF,
160 .flags = IORESOURCE_MEM,
161 },
162 [1] = {
163 .start = CH_SPI,
164 .end = CH_SPI,
165 .flags = IORESOURCE_IRQ,
166 }
167 };
168
169 /* SPI controller data */
170 static struct bfin5xx_spi_master bfin_spi0_info = {
171 .num_chipselect = 8,
172 .enable_dma = 1, /* master has the ability to do dma transfer */
173 .pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
174 };
175
176 static struct platform_device bfin_spi0_device = {
177 .name = "bfin-spi",
178 .id = 0, /* Bus number */
179 .num_resources = ARRAY_SIZE(bfin_spi0_resource),
180 .resource = bfin_spi0_resource,
181 .dev = {
182 .platform_data = &bfin_spi0_info, /* Passed to driver */
183 },
184 };
185 #endif /* spi master and devices */
186
187 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
188 static struct resource bfin_uart_resources[] = {
189 {
190 .start = 0xFFC00400,
191 .end = 0xFFC004FF,
192 .flags = IORESOURCE_MEM,
193 },
194 };
195
196 static struct platform_device bfin_uart_device = {
197 .name = "bfin-uart",
198 .id = 1,
199 .num_resources = ARRAY_SIZE(bfin_uart_resources),
200 .resource = bfin_uart_resources,
201 };
202 #endif
203
204 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
205 #ifdef CONFIG_BFIN_SIR0
206 static struct resource bfin_sir0_resources[] = {
207 {
208 .start = 0xFFC00400,
209 .end = 0xFFC004FF,
210 .flags = IORESOURCE_MEM,
211 },
212 {
213 .start = IRQ_UART0_RX,
214 .end = IRQ_UART0_RX+1,
215 .flags = IORESOURCE_IRQ,
216 },
217 {
218 .start = CH_UART0_RX,
219 .end = CH_UART0_RX+1,
220 .flags = IORESOURCE_DMA,
221 },
222 };
223
224 static struct platform_device bfin_sir0_device = {
225 .name = "bfin_sir",
226 .id = 0,
227 .num_resources = ARRAY_SIZE(bfin_sir0_resources),
228 .resource = bfin_sir0_resources,
229 };
230 #endif
231 #endif
232
233 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
234 static struct platform_device bfin_sport0_uart_device = {
235 .name = "bfin-sport-uart",
236 .id = 0,
237 };
238
239 static struct platform_device bfin_sport1_uart_device = {
240 .name = "bfin-sport-uart",
241 .id = 1,
242 };
243 #endif
244
245 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
246 #include <linux/input.h>
247 #include <linux/gpio_keys.h>
248
249 static struct gpio_keys_button bfin_gpio_keys_table[] = {
250 {BTN_0, GPIO_PF4, 0, "gpio-keys: BTN0"},
251 {BTN_1, GPIO_PF5, 0, "gpio-keys: BTN1"},
252 {BTN_2, GPIO_PF6, 0, "gpio-keys: BTN2"},
253 }; /* Mapped to the first three PF Test Points */
254
255 static struct gpio_keys_platform_data bfin_gpio_keys_data = {
256 .buttons = bfin_gpio_keys_table,
257 .nbuttons = ARRAY_SIZE(bfin_gpio_keys_table),
258 };
259
260 static struct platform_device bfin_device_gpiokeys = {
261 .name = "gpio-keys",
262 .dev = {
263 .platform_data = &bfin_gpio_keys_data,
264 },
265 };
266 #endif
267
268 static struct resource bfin_gpios_resources = {
269 .start = 0,
270 .end = MAX_BLACKFIN_GPIOS - 1,
271 .flags = IORESOURCE_IRQ,
272 };
273
274 static struct platform_device bfin_gpios_device = {
275 .name = "simple-gpio",
276 .id = -1,
277 .num_resources = 1,
278 .resource = &bfin_gpios_resources,
279 };
280
281 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
282 #include <linux/i2c-gpio.h>
283
284 static struct i2c_gpio_platform_data i2c_gpio_data = {
285 .sda_pin = 8,
286 .scl_pin = 9,
287 .sda_is_open_drain = 0,
288 .scl_is_open_drain = 0,
289 .udelay = 40,
290 }; /* This hasn't actually been used these pins
291 * are (currently) free pins on the expansion connector */
292
293 static struct platform_device i2c_gpio_device = {
294 .name = "i2c-gpio",
295 .id = 0,
296 .dev = {
297 .platform_data = &i2c_gpio_data,
298 },
299 };
300 #endif
301
302 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
303 };
304
305 static const unsigned int cclk_vlev_datasheet[] =
306 {
307 VRPAIR(VLEV_085, 250000000),
308 VRPAIR(VLEV_090, 376000000),
309 VRPAIR(VLEV_095, 426000000),
310 VRPAIR(VLEV_100, 426000000),
311 VRPAIR(VLEV_105, 476000000),
312 VRPAIR(VLEV_110, 476000000),
313 VRPAIR(VLEV_115, 476000000),
314 VRPAIR(VLEV_120, 600000000),
315 VRPAIR(VLEV_125, 600000000),
316 VRPAIR(VLEV_130, 600000000),
317 };
318
319 static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
320 .tuple_tab = cclk_vlev_datasheet,
321 .tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
322 .vr_settling_time = 25 /* us */,
323 };
324
325 static struct platform_device bfin_dpmc = {
326 .name = "bfin dpmc",
327 .dev = {
328 .platform_data = &bfin_dmpc_vreg_data,
329 },
330 };
331
332 static struct platform_device *stamp_devices[] __initdata = {
333
334 &bfin_dpmc,
335
336 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
337 &rtc_device,
338 #endif
339
340 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
341 &smc91x_device,
342 #endif
343
344
345 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
346 &bfin_spi0_device,
347 #endif
348
349 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
350 &bfin_uart_device,
351 #endif
352
353 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
354 #ifdef CONFIG_BFIN_SIR0
355 &bfin_sir0_device,
356 #endif
357 #endif
358
359 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
360 &bfin_sport0_uart_device,
361 &bfin_sport1_uart_device,
362 #endif
363
364 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
365 &bfin_device_gpiokeys,
366 #endif
367
368 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
369 &i2c_gpio_device,
370 #endif
371
372 &bfin_gpios_device,
373 };
374
blackstamp_init(void)375 static int __init blackstamp_init(void)
376 {
377 int ret;
378
379 printk(KERN_INFO "%s(): registering device resources\n", __func__);
380
381 i2c_register_board_info(0, bfin_i2c_board_info,
382 ARRAY_SIZE(bfin_i2c_board_info));
383
384 ret = platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
385 if (ret < 0)
386 return ret;
387
388 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
389 /* setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC */
390 bfin_write_FIO_DIR(bfin_read_FIO_DIR() | PF0);
391 bfin_write_FIO_FLAG_S(PF0);
392 SSYNC();
393 #endif
394
395 spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
396 return 0;
397 }
398
399 arch_initcall(blackstamp_init);
400