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Blackfin: acvilon: fix timeout usage for I2C
[net-next-2.6.git] / arch / blackfin / mach-bf561 / boards / acvilon.c
CommitLineData
ab843c79
VY		 1/*
2 * File: arch/blackfin/mach-bf561/acvilon.c
3 * Based on: arch/blackfin/mach-bf561/ezkit.c
4 * Author:
5 *
6 * Created:
7 * Description:
8 *
9 * Modified:
10 * Copyright 2004-2006 Analog Devices Inc.
11 * Copyright 2009 CJSC "NII STT"
12 *
13 * Bugs:
14 *
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
19 *
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
24 *
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, see the file COPYING, or write
27 * to the Free Software Foundation, Inc.,
28 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
29 *
30 *
31 * For more information about Acvilon BF561 SoM please
32 * go to http://www.niistt.ru/
33 *
34 */
35
36#include <linux/device.h>
37#include <linux/platform_device.h>
38#include <linux/mtd/mtd.h>
39#include <linux/mtd/partitions.h>
40#include <linux/mtd/physmap.h>
41#include <linux/mtd/nand.h>
42#include <linux/mtd/plat-ram.h>
43#include <linux/spi/spi.h>
44#include <linux/spi/flash.h>
45#include <linux/irq.h>
46#include <linux/interrupt.h>
efc5863e 47#include <linux/jiffies.h>
ab843c79
VY		 48#include <linux/i2c-pca-platform.h>
49#include <linux/delay.h>
50#include <linux/io.h>
51#include <asm/dma.h>
52#include <asm/bfin5xx_spi.h>
53#include <asm/portmux.h>
54#include <asm/dpmc.h>
55#include <asm/cacheflush.h>
56#include <linux/i2c.h>
57
58/*
59 * Name the Board for the /proc/cpuinfo
60 */
61const char bfin_board_name[] = "Acvilon board";
62
63#if defined(CONFIG_USB_ISP1760_HCD) || defined(CONFIG_USB_ISP1760_HCD_MODULE)
64#include <linux/usb/isp1760.h>
65static struct resource bfin_isp1760_resources[] = {
66 [0] = {
67 .start = 0x20000000,
68 .end = 0x20000000 + 0x000fffff,
69 .flags = IORESOURCE_MEM,
70 },
71 [1] = {
72 .start = IRQ_PF15,
73 .end = IRQ_PF15,
74 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
75 },
76};
77
78static struct isp1760_platform_data isp1760_priv = {
79 .is_isp1761 = 0,
80 .port1_disable = 0,
81 .bus_width_16 = 1,
82 .port1_otg = 0,
83 .analog_oc = 0,
84 .dack_polarity_high = 0,
85 .dreq_polarity_high = 0,
86};
87
88static struct platform_device bfin_isp1760_device = {
89 .name = "isp1760-hcd",
90 .id = 0,
91 .dev = {
92 .platform_data = &isp1760_priv,
93 },
94 .num_resources = ARRAY_SIZE(bfin_isp1760_resources),
95 .resource = bfin_isp1760_resources,
96};
97#endif
98
99static struct resource bfin_i2c_pca_resources[] = {
100 {
101 .name = "pca9564-regs",
102 .start = 0x2C000000,
103 .end = 0x2C000000 + 16,
104 .flags = IORESOURCE_MEM | IORESOURCE_MEM_32BIT,
105 }, {
106
107 .start = IRQ_PF8,
108 .end = IRQ_PF8,
109 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
110 },
111};
112
113struct i2c_pca9564_pf_platform_data pca9564_platform_data = {
114 .gpio = -1,
115 .i2c_clock_speed = 330000,
efc5863e 116 .timeout = HZ,
ab843c79
VY		 117};
118
119/* PCA9564 I2C Bus driver */
120static struct platform_device bfin_i2c_pca_device = {
121 .name = "i2c-pca-platform",
122 .id = 0,
123 .num_resources = ARRAY_SIZE(bfin_i2c_pca_resources),
124 .resource = bfin_i2c_pca_resources,
125 .dev = {
126 .platform_data = &pca9564_platform_data,
127 }
128};
129
130/* I2C devices fitted. */
131static struct i2c_board_info acvilon_i2c_devs[] __initdata = {
132 {
133 I2C_BOARD_INFO("ds1339", 0x68),
134 },
135 {
136 I2C_BOARD_INFO("tcn75", 0x49),
137 },
138};
139
140#if defined(CONFIG_MTD_PLATRAM) || defined(CONFIG_MTD_PLATRAM_MODULE)
141static struct platdata_mtd_ram mtd_ram_data = {
142 .mapname = "rootfs(RAM)",
143 .bankwidth = 4,
144};
145
146static struct resource mtd_ram_resource = {
147 .start = 0x4000000,
148 .end = 0x5ffffff,
149 .flags = IORESOURCE_MEM,
150};
151
152static struct platform_device mtd_ram_device = {
153 .name = "mtd-ram",
154 .id = 0,
155 .dev = {
156 .platform_data = &mtd_ram_data,
157 },
158 .num_resources = 1,
159 .resource = &mtd_ram_resource,
160};
161#endif
162
163#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
164#include <linux/smsc911x.h>
165static struct resource smsc911x_resources[] = {
166 {
167 .name = "smsc911x-memory",
168 .start = 0x28000000,
169 .end = 0x28000000 + 0xFF,
170 .flags = IORESOURCE_MEM,
171 },
172 {
173 .start = IRQ_PF7,
174 .end = IRQ_PF7,
175 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
176 },
177};
178
179static struct smsc911x_platform_config smsc911x_config = {
252077cf 180 .flags = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
ab843c79
VY		 181 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
182 .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
183 .phy_interface = PHY_INTERFACE_MODE_MII,
184};
185
186static struct platform_device smsc911x_device = {
187 .name = "smsc911x",
188 .id = 0,
189 .num_resources = ARRAY_SIZE(smsc911x_resources),
190 .resource = smsc911x_resources,
191 .dev = {
192 .platform_data = &smsc911x_config,
193 },
194};
195#endif
196
197#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
198#ifdef CONFIG_SERIAL_BFIN_UART0
199static struct resource bfin_uart0_resources[] = {
200 {
201 .start = BFIN_UART_THR,
202 .end = BFIN_UART_GCTL + 2,
203 .flags = IORESOURCE_MEM,
204 },
205 {
206 .start = IRQ_UART_RX,
207 .end = IRQ_UART_RX + 1,
208 .flags = IORESOURCE_IRQ,
209 },
210 {
211 .start = IRQ_UART_ERROR,
212 .end = IRQ_UART_ERROR,
213 .flags = IORESOURCE_IRQ,
214 },
215 {
216 .start = CH_UART_TX,
217 .end = CH_UART_TX,
218 .flags = IORESOURCE_DMA,
219 },
220 {
221 .start = CH_UART_RX,
222 .end = CH_UART_RX,
223 .flags = IORESOURCE_DMA,
224 },
225};
226
227unsigned short bfin_uart0_peripherals[] = {
228 P_UART0_TX, P_UART0_RX, 0
229};
230
231static struct platform_device bfin_uart0_device = {
232 .name = "bfin-uart",
233 .id = 0,
234 .num_resources = ARRAY_SIZE(bfin_uart0_resources),
235 .resource = bfin_uart0_resources,
236 .dev = {
237 /* Passed to driver */
238 .platform_data = &bfin_uart0_peripherals,
239 },
240};
241#endif
242#endif
243
244#if defined(CONFIG_MTD_NAND_PLATFORM) || defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
245
246#ifdef CONFIG_MTD_PARTITIONS
247const char *part_probes[] = { "cmdlinepart", NULL };
248
249static struct mtd_partition bfin_plat_nand_partitions[] = {
250 {
251 .name = "params(nand)",
252 .size = 32 * 1024 * 1024,
253 .offset = 0,
254 }, {
255 .name = "userfs(nand)",
256 .size = MTDPART_SIZ_FULL,
257 .offset = MTDPART_OFS_APPEND,
258 },
259};
260#endif
261
262#define BFIN_NAND_PLAT_CLE 2
263#define BFIN_NAND_PLAT_ALE 3
264
265static void bfin_plat_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
266 unsigned int ctrl)
267{
268 struct nand_chip *this = mtd->priv;
269
270 if (cmd == NAND_CMD_NONE)
271 return;
272
273 if (ctrl & NAND_CLE)
274 writeb(cmd, this->IO_ADDR_W + (1 << BFIN_NAND_PLAT_CLE));
275 else
276 writeb(cmd, this->IO_ADDR_W + (1 << BFIN_NAND_PLAT_ALE));
277}
278
279#define BFIN_NAND_PLAT_READY GPIO_PF10
280static int bfin_plat_nand_dev_ready(struct mtd_info *mtd)
281{
282 return gpio_get_value(BFIN_NAND_PLAT_READY);
283}
284
285static struct platform_nand_data bfin_plat_nand_data = {
286 .chip = {
287 .chip_delay = 30,
288#ifdef CONFIG_MTD_PARTITIONS
289 .part_probe_types = part_probes,
290 .partitions = bfin_plat_nand_partitions,
291 .nr_partitions = ARRAY_SIZE(bfin_plat_nand_partitions),
292#endif
293 },
294 .ctrl = {
295 .cmd_ctrl = bfin_plat_nand_cmd_ctrl,
296 .dev_ready = bfin_plat_nand_dev_ready,
297 },
298};
299
300#define MAX(x, y) (x > y ? x : y)
301static struct resource bfin_plat_nand_resources = {
302 .start = 0x24000000,
303 .end = 0x24000000 + (1 << MAX(BFIN_NAND_PLAT_CLE, BFIN_NAND_PLAT_ALE)),
304 .flags = IORESOURCE_IO,
305};
306
307static struct platform_device bfin_async_nand_device = {
308 .name = "gen_nand",
309 .id = -1,
310 .num_resources = 1,
311 .resource = &bfin_plat_nand_resources,
312 .dev = {
313 .platform_data = &bfin_plat_nand_data,
314 },
315};
316
317static void bfin_plat_nand_init(void)
318{
319 gpio_request(BFIN_NAND_PLAT_READY, "bfin_nand_plat");
320}
321#else
322static void bfin_plat_nand_init(void)
323{
324}
325#endif
326
327#if defined(CONFIG_MTD_DATAFLASH) || defined(CONFIG_MTD_DATAFLASH_MODULE)
328static struct mtd_partition bfin_spi_dataflash_partitions[] = {
329 {
330 .name = "bootloader",
331 .size = 0x4200,
332 .offset = 0,
333 .mask_flags = MTD_CAP_ROM},
334 {
335 .name = "u-boot",
336 .size = 0x42000,
337 .offset = MTDPART_OFS_APPEND,
338 },
339 {
340 .name = "u-boot(params)",
341 .size = 0x4200,
342 .offset = MTDPART_OFS_APPEND,
343 },
344 {
345 .name = "kernel",
346 .size = 0x294000,
347 .offset = MTDPART_OFS_APPEND,
348 },
349 {
350 .name = "params",
351 .size = 0x42000,
352 .offset = MTDPART_OFS_APPEND,
353 },
354 {
355 .name = "rootfs",
356 .size = MTDPART_SIZ_FULL,
357 .offset = MTDPART_OFS_APPEND,
358 }
359};
360
361static struct flash_platform_data bfin_spi_dataflash_data = {
362 .name = "SPI Dataflash",
363 .parts = bfin_spi_dataflash_partitions,
364 .nr_parts = ARRAY_SIZE(bfin_spi_dataflash_partitions),
365};
366
367/* DataFlash chip */
368static struct bfin5xx_spi_chip data_flash_chip_info = {
369 .enable_dma = 0, /* use dma transfer with this chip */
370 .bits_per_word = 8,
371};
372#endif
373
374#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
375static struct bfin5xx_spi_chip spidev_chip_info = {
376 .enable_dma = 0,
377 .bits_per_word = 8,
378};
379#endif
380
381#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
382/* SPI (0) */
383static struct resource bfin_spi0_resource[] = {
384 [0] = {
385 .start = SPI0_REGBASE,
386 .end = SPI0_REGBASE + 0xFF,
387 .flags = IORESOURCE_MEM,
388 },
389 [1] = {
390 .start = CH_SPI,
391 .end = CH_SPI,
392 .flags = IORESOURCE_DMA,
393 },
394 [2] = {
395 .start = IRQ_SPI,
396 .end = IRQ_SPI,
397 .flags = IORESOURCE_IRQ,
398 },
399};
400
401/* SPI controller data */
402static struct bfin5xx_spi_master bfin_spi0_info = {
403 .num_chipselect = 8,
404 .enable_dma = 1, /* master has the ability to do dma transfer */
405 .pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
406};
407
408static struct platform_device bfin_spi0_device = {
409 .name = "bfin-spi",
410 .id = 0, /* Bus number */
411 .num_resources = ARRAY_SIZE(bfin_spi0_resource),
412 .resource = bfin_spi0_resource,
413 .dev = {
414 .platform_data = &bfin_spi0_info, /* Passed to driver */
415 },
416};
417#endif
418
419static struct spi_board_info bfin_spi_board_info[] __initdata = {
420#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
421 {
422 .modalias = "spidev",
423 .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */
424 .bus_num = 0,
425 .chip_select = 3,
426 .controller_data = &spidev_chip_info,
427 },
428#endif
429#if defined(CONFIG_MTD_DATAFLASH) || defined(CONFIG_MTD_DATAFLASH_MODULE)
430 { /* DataFlash chip */
431 .modalias = "mtd_dataflash",
432 .max_speed_hz = 33250000, /* max spi clock (SCK) speed in HZ */
433 .bus_num = 0, /* Framework bus number */
434 .chip_select = 2, /* Framework chip select */
435 .platform_data = &bfin_spi_dataflash_data,
436 .controller_data = &data_flash_chip_info,
437 .mode = SPI_MODE_3,
438 },
439#endif
440};
441
442static struct resource bfin_gpios_resources = {
443 .start = 31,
444/* .end = MAX_BLACKFIN_GPIOS - 1, */
445 .end = 32,
446 .flags = IORESOURCE_IRQ,
447};
448
449static struct platform_device bfin_gpios_device = {
450 .name = "simple-gpio",
451 .id = -1,
452 .num_resources = 1,
453 .resource = &bfin_gpios_resources,
454};
455
456static const unsigned int cclk_vlev_datasheet[] = {
457 VRPAIR(VLEV_085, 250000000),
458 VRPAIR(VLEV_090, 300000000),
459 VRPAIR(VLEV_095, 313000000),
460 VRPAIR(VLEV_100, 350000000),
461 VRPAIR(VLEV_105, 400000000),
462 VRPAIR(VLEV_110, 444000000),
463 VRPAIR(VLEV_115, 450000000),
464 VRPAIR(VLEV_120, 475000000),
465 VRPAIR(VLEV_125, 500000000),
466 VRPAIR(VLEV_130, 600000000),
467};
468
469static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
470 .tuple_tab = cclk_vlev_datasheet,
471 .tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
472 .vr_settling_time = 25 /* us */ ,
473};
474
475static struct platform_device bfin_dpmc = {
476 .name = "bfin dpmc",
477 .dev = {
478 .platform_data = &bfin_dmpc_vreg_data,
479 },
480};
481
482static struct platform_device *acvilon_devices[] __initdata = {
483 &bfin_dpmc,
484
485#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
486 &bfin_spi0_device,
487#endif
488
489#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
490#ifdef CONFIG_SERIAL_BFIN_UART0
491 &bfin_uart0_device,
492#endif
493#endif
494
495 &bfin_gpios_device,
496
497#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
498 &smsc911x_device,
499#endif
500
501 &bfin_i2c_pca_device,
502
503#if defined(CONFIG_MTD_NAND_PLATFORM) || defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
504 &bfin_async_nand_device,
505#endif
506
507#if defined(CONFIG_MTD_PLATRAM) || defined(CONFIG_MTD_PLATRAM_MODULE)
508 &mtd_ram_device,
509#endif
510
511};
512
513static int __init acvilon_init(void)
514{
515 int ret;
516
517 printk(KERN_INFO "%s(): registering device resources\n", __func__);
518
519 bfin_plat_nand_init();
520 ret =
521 platform_add_devices(acvilon_devices, ARRAY_SIZE(acvilon_devices));
522 if (ret < 0)
523 return ret;
524
525 i2c_register_board_info(0, acvilon_i2c_devs,
526 ARRAY_SIZE(acvilon_i2c_devs));
527
528 bfin_write_FIO0_FLAG_C(1 << 14);
529 msleep(5);
530 bfin_write_FIO0_FLAG_S(1 << 14);
531
532 spi_register_board_info(bfin_spi_board_info,
533 ARRAY_SIZE(bfin_spi_board_info));
534 return 0;
535}
536
537arch_initcall(acvilon_init);
538
539static struct platform_device *acvilon_early_devices[] __initdata = {
540#if defined(CONFIG_SERIAL_BFIN_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
541#ifdef CONFIG_SERIAL_BFIN_UART0
542 &bfin_uart0_device,
543#endif
544#endif
545};
546
547void __init native_machine_early_platform_add_devices(void)
548{
549 printk(KERN_INFO "register early platform devices\n");
550 early_platform_add_devices(acvilon_early_devices,
551 ARRAY_SIZE(acvilon_early_devices));
552}
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