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Message-ID: <20100203104448.GB3460@sortiz.org>
Date: Wed, 3 Feb 2010 11:45:01 +0100
From: Samuel Ortiz <samuel.ortiz@...el.com>
To: Richard Röjfors
<richard.rojfors@...agicore.com>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH RESEND] mfd: Add support for the timberdale FPGA.
Hi Richard,
On Wed, Feb 03, 2010 at 09:39:47AM +0000, Richard Röjfors wrote:
> 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@...agicore.com>
The patch looks good to me, I have a couple of minor comments though:
- Please replace most of your printk with dev_dbg/err()
- Please fix your checkpatch output:
total: 255 errors, 18 warnings, 822 lines checked
Cheers,
Samuel.
> ---
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 8782978..f92673b 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -348,6 +348,17 @@ 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"
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index e09eb48..53375ac 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -55,4 +55,6 @@ obj-$(CONFIG_AB3100_CORE) += ab3100-core.o
> obj-$(CONFIG_AB3100_OTP) += ab3100-otp.o
> obj-$(CONFIG_AB4500_CORE) += ab4500-core.o
> obj-$(CONFIG_MFD_88PM8607) += 88pm8607.o
> -obj-$(CONFIG_PMIC_ADP5520) += adp5520.o
> \ No newline at end of file
> +obj-$(CONFIG_PMIC_ADP5520) += adp5520.o
> +
> +obj-$(CONFIG_MFD_TIMBERDALE) += timberdale.o
> diff --git a/drivers/mfd/timberdale.c b/drivers/mfd/timberdale.c
> new file mode 100644
> index 0000000..90f745b
> --- /dev/null
> +++ b/drivers/mfd/timberdale.c
> @@ -0,0 +1,667 @@
> +/*
> + * 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) {
> + printk(KERN_ERR DRIVER_NAME ": 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")) {
> + printk(KERN_ERR DRIVER_NAME ": Failed to request ctl mem\n");
> + goto err_request;
> + }
> +
> + priv->ctl_membase = ioremap(priv->ctl_mapbase, CHIPCTLSIZE);
> + if (!priv->ctl_membase) {
> + printk(KERN_ALERT DRIVER_NAME": Map error, ctl\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) {
> + printk(KERN_ERR DRIVER_NAME": 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) {
> + printk(KERN_ERR DRIVER_NAME
> + ": 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) {
> + printk(KERN_WARNING DRIVER_NAME
> + ": 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:
> + printk(KERN_ERR"Uknown IP setup: %d.%d.%d\n",
> + priv->fw.major, priv->fw.minor, ip_setup);
> + err = -ENODEV;
> + goto err_mfd;
> + break;
> + }
> +
> + if (err) {
> + printk(KERN_WARNING DRIVER_NAME
> + ": 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) {
> + printk(KERN_WARNING DRIVER_NAME
> + "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) {
> + printk(KERN_WARNING DRIVER_NAME
> + ": mfd_add_devices failed: %d\n", err);
> + goto err_mfd2;
> + }
> + }
> +
> + kfree(msix_entries);
> +
> + printk(KERN_INFO
> + "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@...ean-labs.com>");
> +MODULE_VERSION(DRV_VERSION);
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/mfd/timberdale.h b/drivers/mfd/timberdale.h
> new file mode 100644
> index 0000000..8d27ffa
> --- /dev/null
> +++ b/drivers/mfd/timberdale.h
> @@ -0,0 +1,130 @@
> +/*
> + * 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
>
--
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http://oss.intel.com/
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