* [PATCH RESEND] mfd: Add support for the timberdale FPGA.
@ 2010-02-03 9:39 Richard Röjfors
2010-02-03 10:45 ` Samuel Ortiz
0 siblings, 1 reply; 5+ messages in thread
From: Richard Röjfors @ 2010-02-03 9:39 UTC (permalink / raw)
To: Linux Kernel Mailing List; +Cc: Ortiz, Samuel
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>
---
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@mocean-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
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH RESEND] mfd: Add support for the timberdale FPGA.
2010-02-03 9:39 [PATCH RESEND] mfd: Add support for the timberdale FPGA Richard Röjfors
@ 2010-02-03 10:45 ` Samuel Ortiz
2010-02-03 10:53 ` Richard Röjfors
0 siblings, 1 reply; 5+ messages in thread
From: Samuel Ortiz @ 2010-02-03 10:45 UTC (permalink / raw)
To: Richard Röjfors; +Cc: Linux Kernel Mailing List
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@pelagicore.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@mocean-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
>
--
Intel Open Source Technology Centre
http://oss.intel.com/
---------------------------------------------------------------------
Intel Corporation SAS (French simplified joint stock company)
Registered headquarters: "Les Montalets"- 2, rue de Paris,
92196 Meudon Cedex, France
Registration Number: 302 456 199 R.C.S. NANTERRE
Capital: 4,572,000 Euros
This e-mail and any attachments may contain confidential material for
the sole use of the intended recipient(s). Any review or distribution
by others is strictly prohibited. If you are not the intended
recipient, please contact the sender and delete all copies.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH RESEND] mfd: Add support for the timberdale FPGA.
2010-02-03 10:45 ` Samuel Ortiz
@ 2010-02-03 10:53 ` Richard Röjfors
2010-02-03 12:32 ` Samuel Ortiz
0 siblings, 1 reply; 5+ messages in thread
From: Richard Röjfors @ 2010-02-03 10:53 UTC (permalink / raw)
To: Samuel Ortiz; +Cc: Linux Kernel Mailing List
On 02/03/2010 11:45 AM, Samuel Ortiz wrote:
> 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@pelagicore.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()
Agreed.
> - Please fix your checkpatch output:
> total: 255 errors, 18 warnings, 822 lines checked
Sweet, the mail client changed all tabs to spaces when resending the patch.
--Richard
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH RESEND] mfd: Add support for the timberdale FPGA.
2010-02-03 10:53 ` Richard Röjfors
@ 2010-02-03 12:32 ` Samuel Ortiz
2010-02-03 12:38 ` Richard Röjfors
0 siblings, 1 reply; 5+ messages in thread
From: Samuel Ortiz @ 2010-02-03 12:32 UTC (permalink / raw)
To: Richard Röjfors; +Cc: Linux Kernel Mailing List
On Wed, Feb 03, 2010 at 10:53:34AM +0000, Richard Röjfors wrote:
> On 02/03/2010 11:45 AM, Samuel Ortiz wrote:
> > 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@pelagicore.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()
>
> Agreed.
>
> > - Please fix your checkpatch output:
> > total: 255 errors, 18 warnings, 822 lines checked
>
> Sweet, the mail client changed all tabs to spaces when resending the patch.
Actually, your first patch to the linux-media ml also had tabs changed into
spaces.
Cheers,
Samuel.
> --Richard
>
--
Intel Open Source Technology Centre
http://oss.intel.com/
---------------------------------------------------------------------
Intel Corporation SAS (French simplified joint stock company)
Registered headquarters: "Les Montalets"- 2, rue de Paris,
92196 Meudon Cedex, France
Registration Number: 302 456 199 R.C.S. NANTERRE
Capital: 4,572,000 Euros
This e-mail and any attachments may contain confidential material for
the sole use of the intended recipient(s). Any review or distribution
by others is strictly prohibited. If you are not the intended
recipient, please contact the sender and delete all copies.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH RESEND] mfd: Add support for the timberdale FPGA.
2010-02-03 12:32 ` Samuel Ortiz
@ 2010-02-03 12:38 ` Richard Röjfors
0 siblings, 0 replies; 5+ messages in thread
From: Richard Röjfors @ 2010-02-03 12:38 UTC (permalink / raw)
To: Samuel Ortiz; +Cc: Linux Kernel Mailing List
On 02/03/2010 01:32 PM, Samuel Ortiz wrote:
> On Wed, Feb 03, 2010 at 10:53:34AM +0000, Richard Röjfors wrote:
>> On 02/03/2010 11:45 AM, Samuel Ortiz wrote:
>>> 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@pelagicore.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()
>>
>> Agreed.
>>
>>> - Please fix your checkpatch output:
>>> total: 255 errors, 18 warnings, 822 lines checked
>>
>> Sweet, the mail client changed all tabs to spaces when resending the patch.
> Actually, your first patch to the linux-media ml also had tabs changed into
> spaces.
I'm getting confused. I checked my sent mail and the one I got from the
media mailinglist and none of these had spaces in it.
Is there a problem with your mail client?
I'll send the updated patch off list first to verify.
--Richard
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2010-02-03 12:38 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
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2010-02-03 9:39 [PATCH RESEND] mfd: Add support for the timberdale FPGA Richard Röjfors
2010-02-03 10:45 ` Samuel Ortiz
2010-02-03 10:53 ` Richard Röjfors
2010-02-03 12:32 ` Samuel Ortiz
2010-02-03 12:38 ` Richard Röjfors
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