2 * timberdale.c timberdale FPGA MFD driver
3 * Copyright (c) 2009 Intel Corporation
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 #include <linux/kernel.h>
24 #include <linux/module.h>
25 #include <linux/pci.h>
26 #include <linux/msi.h>
27 #include <linux/mfd/core.h>
29 #include <linux/timb_gpio.h>
31 #include <linux/i2c.h>
32 #include <linux/i2c-ocores.h>
33 #include <linux/i2c/tsc2007.h>
35 #include <linux/spi/spi.h>
36 #include <linux/spi/xilinx_spi.h>
37 #include <linux/spi/max7301.h>
38 #include <linux/spi/mc33880.h>
40 #include <media/timb_radio.h>
42 #include "timberdale.h"
44 #define DRIVER_NAME "timberdale"
46 struct timberdale_device {
47 resource_size_t ctl_mapbase;
48 unsigned char __iomem *ctl_membase;
56 /*--------------------------------------------------------------------------*/
58 static struct tsc2007_platform_data timberdale_tsc2007_platform_data = {
63 static struct i2c_board_info timberdale_i2c_board_info[] = {
65 I2C_BOARD_INFO("tsc2007", 0x48),
66 .platform_data = &timberdale_tsc2007_platform_data,
67 .irq = IRQ_TIMBERDALE_TSC_INT
71 static __devinitdata struct ocores_i2c_platform_data
72 timberdale_ocores_platform_data = {
75 .devices = timberdale_i2c_board_info,
76 .num_devices = ARRAY_SIZE(timberdale_i2c_board_info)
79 const static __devinitconst struct resource timberdale_ocores_resources[] = {
81 .start = OCORESOFFSET,
83 .flags = IORESOURCE_MEM,
86 .start = IRQ_TIMBERDALE_I2C,
87 .end = IRQ_TIMBERDALE_I2C,
88 .flags = IORESOURCE_IRQ,
92 const struct max7301_platform_data timberdale_max7301_platform_data = {
96 const struct mc33880_platform_data timberdale_mc33880_platform_data = {
100 static struct spi_board_info timberdale_spi_16bit_board_info[] = {
102 .modalias = "max7301",
103 .max_speed_hz = 26000,
106 .platform_data = &timberdale_max7301_platform_data
110 static struct spi_board_info timberdale_spi_8bit_board_info[] = {
112 .modalias = "mc33880",
113 .max_speed_hz = 4000,
116 .platform_data = &timberdale_mc33880_platform_data
120 static __devinitdata struct xspi_platform_data timberdale_xspi_platform_data = {
122 .little_endian = true,
123 /* bits per word and devices will be filled in runtime depending
128 const static __devinitconst struct resource timberdale_spi_resources[] = {
132 .flags = IORESOURCE_MEM,
135 .start = IRQ_TIMBERDALE_SPI,
136 .end = IRQ_TIMBERDALE_SPI,
137 .flags = IORESOURCE_IRQ,
141 const static __devinitconst struct resource timberdale_eth_resources[] = {
145 .flags = IORESOURCE_MEM,
148 .start = IRQ_TIMBERDALE_ETHSW_IF,
149 .end = IRQ_TIMBERDALE_ETHSW_IF,
150 .flags = IORESOURCE_IRQ,
154 static __devinitdata struct timbgpio_platform_data
155 timberdale_gpio_platform_data = {
157 .nr_pins = GPIO_NR_PINS,
161 const static __devinitconst struct resource timberdale_gpio_resources[] = {
165 .flags = IORESOURCE_MEM,
168 .start = IRQ_TIMBERDALE_GPIO,
169 .end = IRQ_TIMBERDALE_GPIO,
170 .flags = IORESOURCE_IRQ,
174 const static __devinitconst struct resource timberdale_mlogicore_resources[] = {
176 .start = MLCOREOFFSET,
178 .flags = IORESOURCE_MEM,
181 .start = IRQ_TIMBERDALE_MLCORE,
182 .end = IRQ_TIMBERDALE_MLCORE,
183 .flags = IORESOURCE_IRQ,
186 .start = IRQ_TIMBERDALE_MLCORE_BUF,
187 .end = IRQ_TIMBERDALE_MLCORE_BUF,
188 .flags = IORESOURCE_IRQ,
192 const static __devinitconst struct resource timberdale_uart_resources[] = {
196 .flags = IORESOURCE_MEM,
199 .start = IRQ_TIMBERDALE_UART,
200 .end = IRQ_TIMBERDALE_UART,
201 .flags = IORESOURCE_IRQ,
205 const static __devinitconst struct resource timberdale_uartlite_resources[] = {
207 .start = UARTLITEOFFSET,
209 .flags = IORESOURCE_MEM,
212 .start = IRQ_TIMBERDALE_UARTLITE,
213 .end = IRQ_TIMBERDALE_UARTLITE,
214 .flags = IORESOURCE_IRQ,
218 const static __devinitconst struct resource timberdale_radio_resources[] = {
222 .flags = IORESOURCE_MEM,
225 .start = IRQ_TIMBERDALE_RDS,
226 .end = IRQ_TIMBERDALE_RDS,
227 .flags = IORESOURCE_IRQ,
231 static __devinitdata struct i2c_board_info timberdale_tef6868_i2c_board_info = {
232 I2C_BOARD_INFO("tef6862", 0x60)
235 static __devinitdata struct i2c_board_info timberdale_saa7706_i2c_board_info = {
236 I2C_BOARD_INFO("saa7706h", 0x1C)
239 static __devinitdata struct timb_radio_platform_data
240 timberdale_radio_platform_data = {
243 .module_name = "tef6862",
244 .info = &timberdale_tef6868_i2c_board_info
247 .module_name = "saa7706h",
248 .info = &timberdale_saa7706_i2c_board_info
252 const static __devinitconst struct resource timberdale_dma_resources[] = {
256 .flags = IORESOURCE_MEM,
259 .start = IRQ_TIMBERDALE_DMA,
260 .end = IRQ_TIMBERDALE_DMA,
261 .flags = IORESOURCE_IRQ,
265 static __devinitdata struct mfd_cell timberdale_cells_bar0_cfg0[] = {
268 .num_resources = ARRAY_SIZE(timberdale_uart_resources),
269 .resources = timberdale_uart_resources,
273 .num_resources = ARRAY_SIZE(timberdale_gpio_resources),
274 .resources = timberdale_gpio_resources,
275 .platform_data = &timberdale_gpio_platform_data,
276 .data_size = sizeof(timberdale_gpio_platform_data),
279 .name = "timb-radio",
280 .num_resources = ARRAY_SIZE(timberdale_radio_resources),
281 .resources = timberdale_radio_resources,
282 .platform_data = &timberdale_radio_platform_data,
283 .data_size = sizeof(timberdale_radio_platform_data),
286 .name = "xilinx_spi",
287 .num_resources = ARRAY_SIZE(timberdale_spi_resources),
288 .resources = timberdale_spi_resources,
289 .platform_data = &timberdale_xspi_platform_data,
290 .data_size = sizeof(timberdale_xspi_platform_data),
294 .num_resources = ARRAY_SIZE(timberdale_eth_resources),
295 .resources = timberdale_eth_resources,
299 .num_resources = ARRAY_SIZE(timberdale_dma_resources),
300 .resources = timberdale_dma_resources,
304 static __devinitdata struct mfd_cell timberdale_cells_bar0_cfg1[] = {
307 .num_resources = ARRAY_SIZE(timberdale_uart_resources),
308 .resources = timberdale_uart_resources,
312 .num_resources = ARRAY_SIZE(timberdale_uartlite_resources),
313 .resources = timberdale_uartlite_resources,
317 .num_resources = ARRAY_SIZE(timberdale_gpio_resources),
318 .resources = timberdale_gpio_resources,
319 .platform_data = &timberdale_gpio_platform_data,
320 .data_size = sizeof(timberdale_gpio_platform_data),
323 .name = "timb-mlogicore",
324 .num_resources = ARRAY_SIZE(timberdale_mlogicore_resources),
325 .resources = timberdale_mlogicore_resources,
328 .name = "timb-radio",
329 .num_resources = ARRAY_SIZE(timberdale_radio_resources),
330 .resources = timberdale_radio_resources,
331 .platform_data = &timberdale_radio_platform_data,
332 .data_size = sizeof(timberdale_radio_platform_data),
335 .name = "xilinx_spi",
336 .num_resources = ARRAY_SIZE(timberdale_spi_resources),
337 .resources = timberdale_spi_resources,
338 .platform_data = &timberdale_xspi_platform_data,
339 .data_size = sizeof(timberdale_xspi_platform_data),
343 .num_resources = ARRAY_SIZE(timberdale_eth_resources),
344 .resources = timberdale_eth_resources,
348 .num_resources = ARRAY_SIZE(timberdale_dma_resources),
349 .resources = timberdale_dma_resources,
353 static __devinitdata struct mfd_cell timberdale_cells_bar0_cfg2[] = {
356 .num_resources = ARRAY_SIZE(timberdale_uart_resources),
357 .resources = timberdale_uart_resources,
361 .num_resources = ARRAY_SIZE(timberdale_gpio_resources),
362 .resources = timberdale_gpio_resources,
363 .platform_data = &timberdale_gpio_platform_data,
364 .data_size = sizeof(timberdale_gpio_platform_data),
367 .name = "timb-radio",
368 .num_resources = ARRAY_SIZE(timberdale_radio_resources),
369 .resources = timberdale_radio_resources,
370 .platform_data = &timberdale_radio_platform_data,
371 .data_size = sizeof(timberdale_radio_platform_data),
374 .name = "xilinx_spi",
375 .num_resources = ARRAY_SIZE(timberdale_spi_resources),
376 .resources = timberdale_spi_resources,
377 .platform_data = &timberdale_xspi_platform_data,
378 .data_size = sizeof(timberdale_xspi_platform_data),
382 .num_resources = ARRAY_SIZE(timberdale_dma_resources),
383 .resources = timberdale_dma_resources,
387 static __devinitdata struct mfd_cell timberdale_cells_bar0_cfg3[] = {
390 .num_resources = ARRAY_SIZE(timberdale_uart_resources),
391 .resources = timberdale_uart_resources,
394 .name = "ocores-i2c",
395 .num_resources = ARRAY_SIZE(timberdale_ocores_resources),
396 .resources = timberdale_ocores_resources,
397 .platform_data = &timberdale_ocores_platform_data,
398 .data_size = sizeof(timberdale_ocores_platform_data),
402 .num_resources = ARRAY_SIZE(timberdale_gpio_resources),
403 .resources = timberdale_gpio_resources,
404 .platform_data = &timberdale_gpio_platform_data,
405 .data_size = sizeof(timberdale_gpio_platform_data),
408 .name = "timb-radio",
409 .num_resources = ARRAY_SIZE(timberdale_radio_resources),
410 .resources = timberdale_radio_resources,
411 .platform_data = &timberdale_radio_platform_data,
412 .data_size = sizeof(timberdale_radio_platform_data),
415 .name = "xilinx_spi",
416 .num_resources = ARRAY_SIZE(timberdale_spi_resources),
417 .resources = timberdale_spi_resources,
418 .platform_data = &timberdale_xspi_platform_data,
419 .data_size = sizeof(timberdale_xspi_platform_data),
423 .num_resources = ARRAY_SIZE(timberdale_eth_resources),
424 .resources = timberdale_eth_resources,
428 .num_resources = ARRAY_SIZE(timberdale_dma_resources),
429 .resources = timberdale_dma_resources,
433 static const __devinitconst struct resource timberdale_sdhc_resources[] = {
434 /* located in bar 1 and bar 2 */
436 .start = SDHC0OFFSET,
438 .flags = IORESOURCE_MEM,
441 .start = IRQ_TIMBERDALE_SDHC,
442 .end = IRQ_TIMBERDALE_SDHC,
443 .flags = IORESOURCE_IRQ,
447 static __devinitdata struct mfd_cell timberdale_cells_bar1[] = {
450 .num_resources = ARRAY_SIZE(timberdale_sdhc_resources),
451 .resources = timberdale_sdhc_resources,
455 static __devinitdata struct mfd_cell timberdale_cells_bar2[] = {
458 .num_resources = ARRAY_SIZE(timberdale_sdhc_resources),
459 .resources = timberdale_sdhc_resources,
463 static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr,
466 struct pci_dev *pdev = to_pci_dev(dev);
467 struct timberdale_device *priv = pci_get_drvdata(pdev);
469 return sprintf(buf, "%d.%d.%d\n", priv->fw.major, priv->fw.minor,
473 static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
475 /*--------------------------------------------------------------------------*/
477 static int __devinit timb_probe(struct pci_dev *dev,
478 const struct pci_device_id *id)
480 struct timberdale_device *priv;
482 resource_size_t mapbase;
483 struct msix_entry *msix_entries = NULL;
486 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
490 pci_set_drvdata(dev, priv);
492 err = pci_enable_device(dev);
496 mapbase = pci_resource_start(dev, 0);
498 dev_err(&dev->dev, "No resource\n");
502 /* create a resource for the PCI master register */
503 priv->ctl_mapbase = mapbase + CHIPCTLOFFSET;
504 if (!request_mem_region(priv->ctl_mapbase, CHIPCTLSIZE, "timb-ctl")) {
505 dev_err(&dev->dev, "Failed to request ctl mem\n");
509 priv->ctl_membase = ioremap(priv->ctl_mapbase, CHIPCTLSIZE);
510 if (!priv->ctl_membase) {
511 dev_err(&dev->dev, "ioremap failed for ctl mem\n");
515 /* read the HW config */
516 priv->fw.major = ioread32(priv->ctl_membase + TIMB_REV_MAJOR);
517 priv->fw.minor = ioread32(priv->ctl_membase + TIMB_REV_MINOR);
518 priv->fw.config = ioread32(priv->ctl_membase + TIMB_HW_CONFIG);
520 if (priv->fw.major > TIMB_SUPPORTED_MAJOR) {
521 dev_err(&dev->dev, "The driver supports an older "
522 "version of the FPGA, please update the driver to "
523 "support %d.%d\n", priv->fw.major, priv->fw.minor);
526 if (priv->fw.major < TIMB_SUPPORTED_MAJOR ||
527 priv->fw.minor < TIMB_REQUIRED_MINOR) {
528 dev_err(&dev->dev, "The FPGA image is too old (%d.%d), "
529 "please upgrade the FPGA to at least: %d.%d\n",
530 priv->fw.major, priv->fw.minor,
531 TIMB_SUPPORTED_MAJOR, TIMB_REQUIRED_MINOR);
535 msix_entries = kzalloc(TIMBERDALE_NR_IRQS * sizeof(*msix_entries),
540 for (i = 0; i < TIMBERDALE_NR_IRQS; i++)
541 msix_entries[i].entry = i;
543 err = pci_enable_msix(dev, msix_entries, TIMBERDALE_NR_IRQS);
546 "MSI-X init failed: %d, expected entries: %d\n",
547 err, TIMBERDALE_NR_IRQS);
551 err = device_create_file(&dev->dev, &dev_attr_fw_ver);
553 goto err_create_file;
555 /* Reset all FPGA PLB peripherals */
556 iowrite32(0x1, priv->ctl_membase + TIMB_SW_RST);
558 /* update IRQ offsets in I2C board info */
559 for (i = 0; i < ARRAY_SIZE(timberdale_i2c_board_info); i++)
560 timberdale_i2c_board_info[i].irq =
561 msix_entries[timberdale_i2c_board_info[i].irq].vector;
563 /* Update the SPI configuration depending on the HW (8 or 16 bit) */
564 if (priv->fw.config & TIMB_HW_CONFIG_SPI_8BIT) {
565 timberdale_xspi_platform_data.bits_per_word = 8;
566 timberdale_xspi_platform_data.devices =
567 timberdale_spi_8bit_board_info;
568 timberdale_xspi_platform_data.num_devices =
569 ARRAY_SIZE(timberdale_spi_8bit_board_info);
571 timberdale_xspi_platform_data.bits_per_word = 16;
572 timberdale_xspi_platform_data.devices =
573 timberdale_spi_16bit_board_info;
574 timberdale_xspi_platform_data.num_devices =
575 ARRAY_SIZE(timberdale_spi_16bit_board_info);
578 ip_setup = priv->fw.config & TIMB_HW_VER_MASK;
581 err = mfd_add_devices(&dev->dev, -1,
582 timberdale_cells_bar0_cfg0,
583 ARRAY_SIZE(timberdale_cells_bar0_cfg0),
584 &dev->resource[0], msix_entries[0].vector);
587 err = mfd_add_devices(&dev->dev, -1,
588 timberdale_cells_bar0_cfg1,
589 ARRAY_SIZE(timberdale_cells_bar0_cfg1),
590 &dev->resource[0], msix_entries[0].vector);
593 err = mfd_add_devices(&dev->dev, -1,
594 timberdale_cells_bar0_cfg2,
595 ARRAY_SIZE(timberdale_cells_bar0_cfg2),
596 &dev->resource[0], msix_entries[0].vector);
599 err = mfd_add_devices(&dev->dev, -1,
600 timberdale_cells_bar0_cfg3,
601 ARRAY_SIZE(timberdale_cells_bar0_cfg3),
602 &dev->resource[0], msix_entries[0].vector);
605 dev_err(&dev->dev, "Uknown IP setup: %d.%d.%d\n",
606 priv->fw.major, priv->fw.minor, ip_setup);
613 dev_err(&dev->dev, "mfd_add_devices failed: %d\n", err);
617 err = mfd_add_devices(&dev->dev, 0,
618 timberdale_cells_bar1, ARRAY_SIZE(timberdale_cells_bar1),
619 &dev->resource[1], msix_entries[0].vector);
621 dev_err(&dev->dev, "mfd_add_devices failed: %d\n", err);
625 /* only version 0 and 3 have the iNand routed to SDHCI */
626 if (((priv->fw.config & TIMB_HW_VER_MASK) == TIMB_HW_VER0) ||
627 ((priv->fw.config & TIMB_HW_VER_MASK) == TIMB_HW_VER3)) {
628 err = mfd_add_devices(&dev->dev, 1, timberdale_cells_bar2,
629 ARRAY_SIZE(timberdale_cells_bar2),
630 &dev->resource[2], msix_entries[0].vector);
632 dev_err(&dev->dev, "mfd_add_devices failed: %d\n", err);
640 "Found Timberdale Card. Rev: %d.%d, HW config: 0x%02x\n",
641 priv->fw.major, priv->fw.minor, priv->fw.config);
646 mfd_remove_devices(&dev->dev);
648 device_remove_file(&dev->dev, &dev_attr_fw_ver);
650 pci_disable_msix(dev);
652 iounmap(priv->ctl_membase);
654 release_mem_region(priv->ctl_mapbase, CHIPCTLSIZE);
656 pci_set_drvdata(dev, NULL);
658 pci_disable_device(dev);
662 pci_set_drvdata(dev, NULL);
666 static void __devexit timb_remove(struct pci_dev *dev)
668 struct timberdale_device *priv = pci_get_drvdata(dev);
670 mfd_remove_devices(&dev->dev);
672 device_remove_file(&dev->dev, &dev_attr_fw_ver);
674 iounmap(priv->ctl_membase);
675 release_mem_region(priv->ctl_mapbase, CHIPCTLSIZE);
677 pci_disable_msix(dev);
678 pci_disable_device(dev);
679 pci_set_drvdata(dev, NULL);
683 static struct pci_device_id timberdale_pci_tbl[] = {
684 { PCI_DEVICE(PCI_VENDOR_ID_TIMB, PCI_DEVICE_ID_TIMB) },
687 MODULE_DEVICE_TABLE(pci, timberdale_pci_tbl);
689 static struct pci_driver timberdale_pci_driver = {
691 .id_table = timberdale_pci_tbl,
693 .remove = __devexit_p(timb_remove),
696 static int __init timberdale_init(void)
700 err = pci_register_driver(&timberdale_pci_driver);
703 "Failed to register PCI driver for %s device.\n",
704 timberdale_pci_driver.name);
708 printk(KERN_INFO "Driver for %s has been successfully registered.\n",
709 timberdale_pci_driver.name);
714 static void __exit timberdale_exit(void)
716 pci_unregister_driver(&timberdale_pci_driver);
718 printk(KERN_INFO "Driver for %s has been successfully unregistered.\n",
719 timberdale_pci_driver.name);
722 module_init(timberdale_init);
723 module_exit(timberdale_exit);
725 MODULE_AUTHOR("Mocean Laboratories <info@mocean-labs.com>");
726 MODULE_VERSION(DRV_VERSION);
727 MODULE_LICENSE("GPL v2");