V4L/DVB: mfd: Add support for the timberdale FPGA

The timberdale FPGA is found on the Intel in-Vehicle Infotainment reference board
russelville.

The driver is a PCI driver which chunks up the I/O memory and distributes interrupts
to a number of platform devices for each IP inside the FPGA.
Signed-off-by: Richard Röjfors <richard.rojfors@pelagicore.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/mfd/Kconfig

@@ -348,6 +348,16 @@ config AB4500_CORE
 	  read/write functions for the devices to get access to this chip.
 	  This chip embeds various other multimedia funtionalities as well.
 
+config MFD_TIMBERDALE
+	tristate "Support for the Timberdale FPGA"
+	select MFD_CORE
+	depends on PCI
+	---help---
+	This is the core driver for the timberdale FPGA. This device is a
+	multifunction device which exposes numerous platform devices.
+
+	The timberdale FPGA can be found on the Intel Atom development board
+	for in-vehicle infontainment, called Russellville.
 endmenu
 
 menu "Multimedia Capabilities Port drivers"

drivers/mfd/Makefile

@@ -54,5 +54,6 @@ obj-$(CONFIG_PCF50633_GPIO)	+= pcf50633-gpio.o
 obj-$(CONFIG_AB3100_CORE)	+= ab3100-core.o
 obj-$(CONFIG_AB3100_OTP)	+= ab3100-otp.o
 obj-$(CONFIG_AB4500_CORE)	+= ab4500-core.o
+obj-$(CONFIG_MFD_TIMBERDALE)    += timberdale.o
 obj-$(CONFIG_MFD_88PM8607)	+= 88pm8607.o
 obj-$(CONFIG_PMIC_ADP5520)	+= adp5520.o

drivers/mfd/timberdale.c

+/*
+ * timberdale.c timberdale FPGA MFD driver
+ * Copyright (c) 2009 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* Supports:
+ * Timberdale FPGA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/msi.h>
+#include <linux/mfd/core.h>
+
+#include <linux/timb_gpio.h>
+
+#include <linux/i2c.h>
+#include <linux/i2c-ocores.h>
+#include <linux/i2c/tsc2007.h>
+
+#include <linux/spi/spi.h>
+#include <linux/spi/xilinx_spi.h>
+#include <linux/spi/max7301.h>
+#include <linux/spi/mc33880.h>
+
+#include "timberdale.h"
+
+#define DRIVER_NAME "timberdale"
+
+struct timberdale_device {
+	resource_size_t		ctl_mapbase;
+	unsigned char __iomem   *ctl_membase;
+	struct {
+		u32 major;
+		u32 minor;
+		u32 config;
+	} fw;
+};
+
+/*--------------------------------------------------------------------------*/
+
+static struct tsc2007_platform_data timberdale_tsc2007_platform_data = {
+	.model = 2003,
+	.x_plate_ohms = 100
+};
+
+static struct i2c_board_info timberdale_i2c_board_info[] = {
+	{
+		I2C_BOARD_INFO("tsc2007", 0x48),
+		.platform_data = &timberdale_tsc2007_platform_data,
+		.irq = IRQ_TIMBERDALE_TSC_INT
+	},
+};
+
+static __devinitdata struct ocores_i2c_platform_data
+timberdale_ocores_platform_data = {
+	.regstep = 4,
+	.clock_khz = 62500,
+	.devices = timberdale_i2c_board_info,
+	.num_devices = ARRAY_SIZE(timberdale_i2c_board_info)
+};
+
+const static __devinitconst struct resource timberdale_ocores_resources[] = {
+	{
+		.start	= OCORESOFFSET,
+		.end	= OCORESEND,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start 	= IRQ_TIMBERDALE_I2C,
+		.end	= IRQ_TIMBERDALE_I2C,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+const struct max7301_platform_data timberdale_max7301_platform_data = {
+	.base = 200
+};
+
+const struct mc33880_platform_data timberdale_mc33880_platform_data = {
+	.base = 100
+};
+
+static struct spi_board_info timberdale_spi_16bit_board_info[] = {
+	{
+		.modalias = "max7301",
+		.max_speed_hz = 26000,
+		.chip_select = 2,
+		.mode = SPI_MODE_0,
+		.platform_data = &timberdale_max7301_platform_data
+	},
+};
+
+static struct spi_board_info timberdale_spi_8bit_board_info[] = {
+	{
+		.modalias = "mc33880",
+		.max_speed_hz = 4000,
+		.chip_select = 1,
+		.mode = SPI_MODE_1,
+		.platform_data = &timberdale_mc33880_platform_data
+	},
+};
+
+static __devinitdata struct xspi_platform_data timberdale_xspi_platform_data = {
+	.num_chipselect = 3,
+	.little_endian = true,
+	/* bits per word and devices will be filled in runtime depending
+	 * on the HW config
+	 */
+};
+
+const static __devinitconst struct resource timberdale_spi_resources[] = {
+	{
+		.start 	= SPIOFFSET,
+		.end	= SPIEND,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= IRQ_TIMBERDALE_SPI,
+		.end	= IRQ_TIMBERDALE_SPI,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+const static __devinitconst struct resource timberdale_eth_resources[] = {
+	{
+		.start	= ETHOFFSET,
+		.end	= ETHEND,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= IRQ_TIMBERDALE_ETHSW_IF,
+		.end	= IRQ_TIMBERDALE_ETHSW_IF,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static __devinitdata struct timbgpio_platform_data
+	timberdale_gpio_platform_data = {
+	.gpio_base = 0,
+	.nr_pins = GPIO_NR_PINS,
+	.irq_base = 200,
+};
+
+const static __devinitconst struct resource timberdale_gpio_resources[] = {
+	{
+		.start	= GPIOOFFSET,
+		.end	= GPIOEND,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= IRQ_TIMBERDALE_GPIO,
+		.end	= IRQ_TIMBERDALE_GPIO,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+const static __devinitconst struct resource timberdale_mlogicore_resources[] = {
+	{
+		.start	= MLCOREOFFSET,
+		.end	= MLCOREEND,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= IRQ_TIMBERDALE_MLCORE,
+		.end	= IRQ_TIMBERDALE_MLCORE,
+		.flags	= IORESOURCE_IRQ,
+	},
+	{
+		.start	= IRQ_TIMBERDALE_MLCORE_BUF,
+		.end	= IRQ_TIMBERDALE_MLCORE_BUF,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+const static __devinitconst struct resource timberdale_uart_resources[] = {
+	{
+		.start	= UARTOFFSET,
+		.end	= UARTEND,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= IRQ_TIMBERDALE_UART,
+		.end	= IRQ_TIMBERDALE_UART,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+const static __devinitconst struct resource timberdale_uartlite_resources[] = {
+	{
+		.start	= UARTLITEOFFSET,
+		.end	= UARTLITEEND,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= IRQ_TIMBERDALE_UARTLITE,
+		.end	= IRQ_TIMBERDALE_UARTLITE,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+const static __devinitconst struct resource timberdale_dma_resources[] = {
+	{
+		.start	= DMAOFFSET,
+		.end	= DMAEND,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= IRQ_TIMBERDALE_DMA,
+		.end	= IRQ_TIMBERDALE_DMA,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static __devinitdata struct mfd_cell timberdale_cells_bar0_cfg0[] = {
+	{
+		.name = "timb-uart",
+		.num_resources = ARRAY_SIZE(timberdale_uart_resources),
+		.resources = timberdale_uart_resources,
+	},
+	{
+		.name = "timb-gpio",
+		.num_resources = ARRAY_SIZE(timberdale_gpio_resources),
+		.resources = timberdale_gpio_resources,
+		.platform_data = &timberdale_gpio_platform_data,
+		.data_size = sizeof(timberdale_gpio_platform_data),
+	},
+	{
+		.name = "xilinx_spi",
+		.num_resources = ARRAY_SIZE(timberdale_spi_resources),
+		.resources = timberdale_spi_resources,
+		.platform_data = &timberdale_xspi_platform_data,
+		.data_size = sizeof(timberdale_xspi_platform_data),
+	},
+	{
+		.name = "ks8842",
+		.num_resources = ARRAY_SIZE(timberdale_eth_resources),
+		.resources = timberdale_eth_resources,
+	},
+	{
+		.name = "timb-dma",
+		.num_resources = ARRAY_SIZE(timberdale_dma_resources),
+		.resources = timberdale_dma_resources,
+	},
+};
+
+static __devinitdata struct mfd_cell timberdale_cells_bar0_cfg1[] = {
+	{
+		.name = "timb-uart",
+		.num_resources = ARRAY_SIZE(timberdale_uart_resources),
+		.resources = timberdale_uart_resources,
+	},
+	{
+		.name = "uartlite",
+		.num_resources = ARRAY_SIZE(timberdale_uartlite_resources),
+		.resources = timberdale_uartlite_resources,
+	},
+	{
+		.name = "timb-gpio",
+		.num_resources = ARRAY_SIZE(timberdale_gpio_resources),
+		.resources = timberdale_gpio_resources,
+		.platform_data = &timberdale_gpio_platform_data,
+		.data_size = sizeof(timberdale_gpio_platform_data),
+	},
+	{
+		.name = "timb-mlogicore",
+		.num_resources = ARRAY_SIZE(timberdale_mlogicore_resources),
+		.resources = timberdale_mlogicore_resources,
+	},
+	{
+		.name = "xilinx_spi",
+		.num_resources = ARRAY_SIZE(timberdale_spi_resources),
+		.resources = timberdale_spi_resources,
+		.platform_data = &timberdale_xspi_platform_data,
+		.data_size = sizeof(timberdale_xspi_platform_data),
+	},
+	{
+		.name = "ks8842",
+		.num_resources = ARRAY_SIZE(timberdale_eth_resources),
+		.resources = timberdale_eth_resources,
+	},
+	{
+		.name = "timb-dma",
+		.num_resources = ARRAY_SIZE(timberdale_dma_resources),
+		.resources = timberdale_dma_resources,
+	},
+};
+
+static __devinitdata struct mfd_cell timberdale_cells_bar0_cfg2[] = {
+	{
+		.name = "timb-uart",
+		.num_resources = ARRAY_SIZE(timberdale_uart_resources),
+		.resources = timberdale_uart_resources,
+	},
+	{
+		.name = "timb-gpio",
+		.num_resources = ARRAY_SIZE(timberdale_gpio_resources),
+		.resources = timberdale_gpio_resources,
+		.platform_data = &timberdale_gpio_platform_data,
+		.data_size = sizeof(timberdale_gpio_platform_data),
+	},
+	{
+		.name = "xilinx_spi",
+		.num_resources = ARRAY_SIZE(timberdale_spi_resources),
+		.resources = timberdale_spi_resources,
+		.platform_data = &timberdale_xspi_platform_data,
+		.data_size = sizeof(timberdale_xspi_platform_data),
+	},
+	{
+		.name = "timb-dma",
+		.num_resources = ARRAY_SIZE(timberdale_dma_resources),
+		.resources = timberdale_dma_resources,
+	},
+};
+
+static __devinitdata struct mfd_cell timberdale_cells_bar0_cfg3[] = {
+	{
+		.name = "timb-uart",
+		.num_resources = ARRAY_SIZE(timberdale_uart_resources),
+		.resources = timberdale_uart_resources,
+	},
+	{
+		.name = "ocores-i2c",
+		.num_resources = ARRAY_SIZE(timberdale_ocores_resources),
+		.resources = timberdale_ocores_resources,
+		.platform_data = &timberdale_ocores_platform_data,
+		.data_size = sizeof(timberdale_ocores_platform_data),
+	},
+	{
+		.name = "timb-gpio",
+		.num_resources = ARRAY_SIZE(timberdale_gpio_resources),
+		.resources = timberdale_gpio_resources,
+		.platform_data = &timberdale_gpio_platform_data,
+		.data_size = sizeof(timberdale_gpio_platform_data),
+	},
+	{
+		.name = "xilinx_spi",
+		.num_resources = ARRAY_SIZE(timberdale_spi_resources),
+		.resources = timberdale_spi_resources,
+		.platform_data = &timberdale_xspi_platform_data,
+		.data_size = sizeof(timberdale_xspi_platform_data),
+	},
+	{
+		.name = "ks8842",
+		.num_resources = ARRAY_SIZE(timberdale_eth_resources),
+		.resources = timberdale_eth_resources,
+	},
+	{
+		.name = "timb-dma",
+		.num_resources = ARRAY_SIZE(timberdale_dma_resources),
+		.resources = timberdale_dma_resources,
+	},
+};
+
+static const __devinitconst struct resource timberdale_sdhc_resources[] = {
+	/* located in bar 1 and bar 2 */
+	{
+		.start	= SDHC0OFFSET,
+		.end	= SDHC0END,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= IRQ_TIMBERDALE_SDHC,
+		.end	= IRQ_TIMBERDALE_SDHC,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static __devinitdata struct mfd_cell timberdale_cells_bar1[] = {
+	{
+		.name = "sdhci",
+		.num_resources = ARRAY_SIZE(timberdale_sdhc_resources),
+		.resources = timberdale_sdhc_resources,
+	},
+};
+
+static __devinitdata struct mfd_cell timberdale_cells_bar2[] = {
+	{
+		.name = "sdhci",
+		.num_resources = ARRAY_SIZE(timberdale_sdhc_resources),
+		.resources = timberdale_sdhc_resources,
+	},
+};
+
+static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr,
+	char *buf)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct timberdale_device *priv = pci_get_drvdata(pdev);
+
+	return sprintf(buf, "%d.%d.%d\n", priv->fw.major, priv->fw.minor,
+		priv->fw.config);
+}
+
+static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
+
+/*--------------------------------------------------------------------------*/
+
+static int __devinit timb_probe(struct pci_dev *dev,
+	const struct pci_device_id *id)
+{
+	struct timberdale_device *priv;
+	int err, i;
+	resource_size_t mapbase;
+	struct msix_entry *msix_entries = NULL;
+	u8 ip_setup;
+
+	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	pci_set_drvdata(dev, priv);
+
+	err = pci_enable_device(dev);
+	if (err)
+		goto err_enable;
+
+	mapbase = pci_resource_start(dev, 0);
+	if (!mapbase) {
+		dev_err(&dev->dev, "No resource\n");
+		goto err_start;
+	}
+
+	/* create a resource for the PCI master register */
+	priv->ctl_mapbase = mapbase + CHIPCTLOFFSET;
+	if (!request_mem_region(priv->ctl_mapbase, CHIPCTLSIZE, "timb-ctl")) {
+		dev_err(&dev->dev, "Failed to request ctl mem\n");
+		goto err_request;
+	}
+
+	priv->ctl_membase = ioremap(priv->ctl_mapbase, CHIPCTLSIZE);
+	if (!priv->ctl_membase) {
+		dev_err(&dev->dev, "ioremap failed for ctl mem\n");
+		goto err_ioremap;
+	}
+
+	/* read the HW config */
+	priv->fw.major = ioread32(priv->ctl_membase + TIMB_REV_MAJOR);
+	priv->fw.minor = ioread32(priv->ctl_membase + TIMB_REV_MINOR);
+	priv->fw.config = ioread32(priv->ctl_membase + TIMB_HW_CONFIG);
+
+	if (priv->fw.major > TIMB_SUPPORTED_MAJOR) {
+		dev_err(&dev->dev, "The driver supports an older "
+			"version of the FPGA, please update the driver to "
+			"support %d.%d\n", priv->fw.major, priv->fw.minor);
+		goto err_ioremap;
+	}
+	if (priv->fw.major < TIMB_SUPPORTED_MAJOR ||
+		priv->fw.minor < TIMB_REQUIRED_MINOR) {
+		dev_err(&dev->dev, "The FPGA image is too old (%d.%d), "
+			"please upgrade the FPGA to at least: %d.%d\n",
+			priv->fw.major, priv->fw.minor,
+			TIMB_SUPPORTED_MAJOR, TIMB_REQUIRED_MINOR);
+		goto err_ioremap;
+	}
+
+	msix_entries = kzalloc(TIMBERDALE_NR_IRQS * sizeof(*msix_entries),
+		GFP_KERNEL);
+	if (!msix_entries)
+		goto err_ioremap;
+
+	for (i = 0; i < TIMBERDALE_NR_IRQS; i++)
+		msix_entries[i].entry = i;
+
+	err = pci_enable_msix(dev, msix_entries, TIMBERDALE_NR_IRQS);
+	if (err) {
+		dev_err(&dev->dev,
+			"MSI-X init failed: %d, expected entries: %d\n",
+			err, TIMBERDALE_NR_IRQS);
+		goto err_msix;
+	}
+
+	err = device_create_file(&dev->dev, &dev_attr_fw_ver);
+	if (err)
+		goto err_create_file;
+
+	/* Reset all FPGA PLB peripherals */
+	iowrite32(0x1, priv->ctl_membase + TIMB_SW_RST);
+
+	/* update IRQ offsets in I2C board info */
+	for (i = 0; i < ARRAY_SIZE(timberdale_i2c_board_info); i++)
+		timberdale_i2c_board_info[i].irq =
+			msix_entries[timberdale_i2c_board_info[i].irq].vector;
+
+	/* Update the SPI configuration depending on the HW (8 or 16 bit) */
+	if (priv->fw.config & TIMB_HW_CONFIG_SPI_8BIT) {
+		timberdale_xspi_platform_data.bits_per_word = 8;
+		timberdale_xspi_platform_data.devices =
+			timberdale_spi_8bit_board_info;
+		timberdale_xspi_platform_data.num_devices =
+			ARRAY_SIZE(timberdale_spi_8bit_board_info);
+	} else {
+		timberdale_xspi_platform_data.bits_per_word = 16;
+		timberdale_xspi_platform_data.devices =
+			timberdale_spi_16bit_board_info;
+		timberdale_xspi_platform_data.num_devices =
+			ARRAY_SIZE(timberdale_spi_16bit_board_info);
+	}
+
+	ip_setup = priv->fw.config & TIMB_HW_VER_MASK;
+	switch (ip_setup) {
+	case TIMB_HW_VER0:
+		err = mfd_add_devices(&dev->dev, -1,
+			timberdale_cells_bar0_cfg0,
+			ARRAY_SIZE(timberdale_cells_bar0_cfg0),
+			&dev->resource[0], msix_entries[0].vector);
+		break;
+	case TIMB_HW_VER1:
+		err = mfd_add_devices(&dev->dev, -1,
+			timberdale_cells_bar0_cfg1,
+			ARRAY_SIZE(timberdale_cells_bar0_cfg1),
+			&dev->resource[0], msix_entries[0].vector);
+		break;
+	case TIMB_HW_VER2:
+		err = mfd_add_devices(&dev->dev, -1,
+			timberdale_cells_bar0_cfg2,
+			ARRAY_SIZE(timberdale_cells_bar0_cfg2),
+			&dev->resource[0], msix_entries[0].vector);
+		break;
+	case TIMB_HW_VER3:
+		err = mfd_add_devices(&dev->dev, -1,
+			timberdale_cells_bar0_cfg3,
+			ARRAY_SIZE(timberdale_cells_bar0_cfg3),
+			&dev->resource[0], msix_entries[0].vector);
+		break;
+	default:
+		dev_err(&dev->dev, "Uknown IP setup: %d.%d.%d\n",
+			priv->fw.major, priv->fw.minor, ip_setup);
+		err = -ENODEV;
+		goto err_mfd;
+		break;
+	}
+
+	if (err) {
+		dev_err(&dev->dev, "mfd_add_devices failed: %d\n", err);
+		goto err_mfd;
+	}
+
+	err = mfd_add_devices(&dev->dev, 0,
+		timberdale_cells_bar1, ARRAY_SIZE(timberdale_cells_bar1),
+		&dev->resource[1], msix_entries[0].vector);
+	if (err) {
+		dev_err(&dev->dev, "mfd_add_devices failed: %d\n", err);
+		goto err_mfd2;
+	}
+
+	/* only version 0 and 3 have the iNand routed to SDHCI */
+	if (((priv->fw.config & TIMB_HW_VER_MASK) == TIMB_HW_VER0) ||
+		((priv->fw.config & TIMB_HW_VER_MASK) == TIMB_HW_VER3)) {
+		err = mfd_add_devices(&dev->dev, 1, timberdale_cells_bar2,
+			ARRAY_SIZE(timberdale_cells_bar2),
+			&dev->resource[2], msix_entries[0].vector);
+		if (err) {
+			dev_err(&dev->dev, "mfd_add_devices failed: %d\n", err);
+			goto err_mfd2;
+		}
+	}
+
+	kfree(msix_entries);
+
+	dev_info(&dev->dev,
+		"Found Timberdale Card. Rev: %d.%d, HW config: 0x%02x\n",
+		priv->fw.major, priv->fw.minor, priv->fw.config);
+
+	return 0;
+
+err_mfd2:
+	mfd_remove_devices(&dev->dev);
+err_mfd:
+	device_remove_file(&dev->dev, &dev_attr_fw_ver);
+err_create_file:
+	pci_disable_msix(dev);
+err_msix:
+	iounmap(priv->ctl_membase);
+err_ioremap:
+	release_mem_region(priv->ctl_mapbase, CHIPCTLSIZE);
+err_request:
+	pci_set_drvdata(dev, NULL);
+err_start:
+	pci_disable_device(dev);
+err_enable:
+	kfree(msix_entries);
+	kfree(priv);
+	pci_set_drvdata(dev, NULL);
+	return -ENODEV;
+}
+
+static void __devexit timb_remove(struct pci_dev *dev)
+{
+	struct timberdale_device *priv = pci_get_drvdata(dev);
+
+	mfd_remove_devices(&dev->dev);
+
+	device_remove_file(&dev->dev, &dev_attr_fw_ver);
+
+	iounmap(priv->ctl_membase);
+	release_mem_region(priv->ctl_mapbase, CHIPCTLSIZE);
+
+	pci_disable_msix(dev);
+	pci_disable_device(dev);
+	pci_set_drvdata(dev, NULL);
+	kfree(priv);
+}
+
+static struct pci_device_id timberdale_pci_tbl[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_TIMB, PCI_DEVICE_ID_TIMB) },
+	{ 0 }
+};
+MODULE_DEVICE_TABLE(pci, timberdale_pci_tbl);
+
+static struct pci_driver timberdale_pci_driver = {
+	.name = DRIVER_NAME,
+	.id_table = timberdale_pci_tbl,
+	.probe = timb_probe,
+	.remove = __devexit_p(timb_remove),
+};
+
+static int __init timberdale_init(void)
+{
+	int err;
+
+	err = pci_register_driver(&timberdale_pci_driver);
+	if (err < 0) {
+		printk(KERN_ERR
+			"Failed to register PCI driver for %s device.\n",
+			timberdale_pci_driver.name);
+		return -ENODEV;
+	}
+
+	printk(KERN_INFO "Driver for %s has been successfully registered.\n",
+		timberdale_pci_driver.name);
+
+	return 0;
+}
+
+static void __exit timberdale_exit(void)
+{
+	pci_unregister_driver(&timberdale_pci_driver);
+
+	printk(KERN_INFO "Driver for %s has been successfully unregistered.\n",
+		timberdale_pci_driver.name);
+}
+
+module_init(timberdale_init);
+module_exit(timberdale_exit);
+
+MODULE_AUTHOR("Mocean Laboratories <info@mocean-labs.com>");
+MODULE_VERSION(DRV_VERSION);
+MODULE_LICENSE("GPL v2");

drivers/mfd/timberdale.h

+/*
+ * timberdale.h timberdale FPGA MFD driver defines
+ * Copyright (c) 2009 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* Supports:
+ * Timberdale FPGA
+ */
+
+#ifndef MFD_TIMBERDALE_H
+#define MFD_TIMBERDALE_H
+
+#define DRV_VERSION		"0.1"
+
+/* This driver only support versions >= 3.8 and < 4.0  */
+#define TIMB_SUPPORTED_MAJOR	3
+
+/* This driver only support minor >= 8 */
+#define TIMB_REQUIRED_MINOR	8
+
+/* Registers of the control area */
+#define TIMB_REV_MAJOR	0x00
+#define TIMB_REV_MINOR	0x04
+#define TIMB_HW_CONFIG	0x08
+#define TIMB_SW_RST	0x40
+
+/* bits in the TIMB_HW_CONFIG register */
+#define TIMB_HW_CONFIG_SPI_8BIT	0x80
+
+#define TIMB_HW_VER_MASK	0x0f
+#define TIMB_HW_VER0		0x00
+#define TIMB_HW_VER1		0x01
+#define TIMB_HW_VER2		0x02
+#define TIMB_HW_VER3		0x03
+
+#define OCORESOFFSET	0x0
+#define OCORESEND	0x1f
+
+#define SPIOFFSET	0x80
+#define SPIEND		0xff
+
+#define UARTLITEOFFSET	0x100
+#define UARTLITEEND	0x10f
+
+#define RDSOFFSET	0x180
+#define RDSEND		0x183
+
+#define ETHOFFSET	0x300
+#define ETHEND		0x3ff
+
+#define GPIOOFFSET	0x400
+#define GPIOEND		0x7ff
+
+#define CHIPCTLOFFSET	0x800
+#define CHIPCTLEND	0x8ff
+#define CHIPCTLSIZE	(CHIPCTLEND - CHIPCTLOFFSET)
+
+#define INTCOFFSET	0xc00
+#define INTCEND		0xfff
+#define INTCSIZE	(INTCEND - INTCOFFSET)
+
+#define MOSTOFFSET	0x1000
+#define MOSTEND		0x13ff
+
+#define UARTOFFSET	0x1400
+#define UARTEND		0x17ff
+
+#define XIICOFFSET	0x1800
+#define XIICEND		0x19ff
+
+#define I2SOFFSET	0x1C00
+#define I2SEND		0x1fff
+
+#define LOGIWOFFSET	0x30000
+#define LOGIWEND	0x37fff
+
+#define MLCOREOFFSET	0x40000
+#define MLCOREEND	0x43fff
+
+#define DMAOFFSET	0x01000000
+#define DMAEND		0x013fffff
+
+/* SDHC0 is placed in PCI bar 1 */
+#define SDHC0OFFSET	0x00
+#define SDHC0END	0xff
+
+/* SDHC1 is placed in PCI bar 2 */
+#define SDHC1OFFSET	0x00
+#define SDHC1END	0xff
+
+#define PCI_VENDOR_ID_TIMB	0x10ee
+#define PCI_DEVICE_ID_TIMB	0xa123
+
+#define IRQ_TIMBERDALE_INIC		0
+#define IRQ_TIMBERDALE_MLB		1
+#define IRQ_TIMBERDALE_GPIO		2
+#define IRQ_TIMBERDALE_I2C		3
+#define IRQ_TIMBERDALE_UART		4
+#define IRQ_TIMBERDALE_DMA		5
+#define IRQ_TIMBERDALE_I2S		6
+#define IRQ_TIMBERDALE_TSC_INT		7
+#define IRQ_TIMBERDALE_SDHC		8
+#define IRQ_TIMBERDALE_ADV7180		9
+#define IRQ_TIMBERDALE_ETHSW_IF		10
+#define IRQ_TIMBERDALE_SPI		11
+#define IRQ_TIMBERDALE_UARTLITE		12
+#define IRQ_TIMBERDALE_MLCORE		13
+#define IRQ_TIMBERDALE_MLCORE_BUF	14
+#define IRQ_TIMBERDALE_RDS		15
+#define TIMBERDALE_NR_IRQS		16
+
+#define GPIO_PIN_ASCB		8
+#define GPIO_PIN_INIC_RST	14
+#define GPIO_PIN_BT_RST		15
+#define GPIO_NR_PINS		16
+
+#endif