/* * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #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 xiic_i2c_platform_data timberdale_xiic_platform_data = { .devices = timberdale_i2c_board_info, .num_devices = ARRAY_SIZE(timberdale_i2c_board_info) }; 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) }; static const __devinitconst struct resource timberdale_xiic_resources[] = { { .start = XIICOFFSET, .end = XIICEND, .flags = IORESOURCE_MEM, }, { .start = IRQ_TIMBERDALE_I2C, .end = IRQ_TIMBERDALE_I2C, .flags = IORESOURCE_IRQ, }, }; static const __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 */ }; static const __devinitconst struct resource timberdale_spi_resources[] = { { .start = SPIOFFSET, .end = SPIEND, .flags = IORESOURCE_MEM, }, { .start = IRQ_TIMBERDALE_SPI, .end = IRQ_TIMBERDALE_SPI, .flags = IORESOURCE_IRQ, }, }; static __devinitdata struct ks8842_platform_data timberdale_ks8842_platform_data = { .rx_dma_channel = DMA_ETH_RX, .tx_dma_channel = DMA_ETH_TX }; static const __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, }; static const __devinitconst struct resource timberdale_gpio_resources[] = { { .start = GPIOOFFSET, .end = GPIOEND, .flags = IORESOURCE_MEM, }, { .start = IRQ_TIMBERDALE_GPIO, .end = IRQ_TIMBERDALE_GPIO, .flags = IORESOURCE_IRQ, }, }; static const __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, }, }; static const __devinitconst struct resource timberdale_uart_resources[] = { { .start = UARTOFFSET, .end = UARTEND, .flags = IORESOURCE_MEM, }, { .start = IRQ_TIMBERDALE_UART, .end = IRQ_TIMBERDALE_UART, .flags = IORESOURCE_IRQ, }, }; static const __devinitconst struct resource timberdale_uartlite_resources[] = { { .start = UARTLITEOFFSET, .end = UARTLITEEND, .flags = IORESOURCE_MEM, }, { .start = IRQ_TIMBERDALE_UARTLITE, .end = IRQ_TIMBERDALE_UARTLITE, .flags = IORESOURCE_IRQ, }, }; static __devinitdata struct i2c_board_info timberdale_adv7180_i2c_board_info = { /* Requires jumper JP9 to be off */ I2C_BOARD_INFO("adv7180", 0x42 >> 1), .irq = IRQ_TIMBERDALE_ADV7180 }; static __devinitdata struct timb_video_platform_data timberdale_video_platform_data = { .dma_channel = DMA_VIDEO_RX, .i2c_adapter = 0, .encoder = { .info = &timberdale_adv7180_i2c_board_info } }; static const __devinitconst struct resource timberdale_radio_resources[] = { { .start = RDSOFFSET, .end = RDSEND, .flags = IORESOURCE_MEM, }, { .start = IRQ_TIMBERDALE_RDS, .end = IRQ_TIMBERDALE_RDS, .flags = IORESOURCE_IRQ, }, }; static __devinitdata struct i2c_board_info timberdale_tef6868_i2c_board_info = { I2C_BOARD_INFO("tef6862", 0x60) }; static __devinitdata struct i2c_board_info timberdale_saa7706_i2c_board_info = { I2C_BOARD_INFO("saa7706h", 0x1C) }; static __devinitdata struct timb_radio_platform_data timberdale_radio_platform_data = { .i2c_adapter = 0, .tuner = { .info = &timberdale_tef6868_i2c_board_info }, .dsp = { .info = &timberdale_saa7706_i2c_board_info } }; static const __devinitconst struct resource timberdale_video_resources[] = { { .start = LOGIWOFFSET, .end = LOGIWEND, .flags = IORESOURCE_MEM, }, /* note that the "frame buffer" is located in DMA area starting at 0x1200000 */ }; static __devinitdata struct timb_dma_platform_data timb_dma_platform_data = { .nr_channels = 10, .channels = { { /* UART RX */ .rx = true, .descriptors = 2, .descriptor_elements = 1 }, { /* UART TX */ .rx = false, .descriptors = 2, .descriptor_elements = 1 }, { /* MLB RX */ .rx = true, .descriptors = 2, .descriptor_elements = 1 }, { /* MLB TX */ .rx = false, .descriptors = 2, .descriptor_elements = 1 }, { /* Video RX */ .rx = true, .bytes_per_line = 1440, .descriptors = 2, .descriptor_elements = 16 }, { /* Video framedrop */ }, { /* SDHCI RX */ .rx = true, }, { /* SDHCI TX */ }, { /* ETH RX */ .rx = true, .descriptors = 2, .descriptor_elements = 1 }, { /* ETH TX */ .rx = false, .descriptors = 2, .descriptor_elements = 1 }, } }; static const __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-dma", .num_resources = ARRAY_SIZE(timberdale_dma_resources), .resources = timberdale_dma_resources, .platform_data = &timb_dma_platform_data, }, { .name = "timb-uart", .num_resources = ARRAY_SIZE(timberdale_uart_resources), .resources = timberdale_uart_resources, }, { .name = "xiic-i2c", .num_resources = ARRAY_SIZE(timberdale_xiic_resources), .resources = timberdale_xiic_resources, .platform_data = &timberdale_xiic_platform_data, }, { .name = "timb-gpio", .num_resources = ARRAY_SIZE(timberdale_gpio_resources), .resources = timberdale_gpio_resources, .platform_data = &timberdale_gpio_platform_data, }, { .name = "timb-video", .num_resources = ARRAY_SIZE(timberdale_video_resources), .resources = timberdale_video_resources, .platform_data = &timberdale_video_platform_data, }, { .name = "timb-radio", .num_resources = ARRAY_SIZE(timberdale_radio_resources), .resources = timberdale_radio_resources, .platform_data = &timberdale_radio_platform_data, }, { .name = "xilinx_spi", .num_resources = ARRAY_SIZE(timberdale_spi_resources), .resources = timberdale_spi_resources, .platform_data = &timberdale_xspi_platform_data, }, { .name = "ks8842", .num_resources = ARRAY_SIZE(timberdale_eth_resources), .resources = timberdale_eth_resources, .platform_data = &timberdale_ks8842_platform_data, }, }; static __devinitdata struct mfd_cell timberdale_cells_bar0_cfg1[] = { { .name = "timb-dma", .num_resources = ARRAY_SIZE(timberdale_dma_resources), .resources = timberdale_dma_resources, .platform_data = &timb_dma_platform_data, }, { .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 = "xiic-i2c", .num_resources = ARRAY_SIZE(timberdale_xiic_resources), .resources = timberdale_xiic_resources, .platform_data = &timberdale_xiic_platform_data, }, { .name = "timb-gpio", .num_resources = ARRAY_SIZE(timberdale_gpio_resources), .resources = timberdale_gpio_resources, .platform_data = &timberdale_gpio_platform_data, }, { .name = "timb-mlogicore", .num_resources = ARRAY_SIZE(timberdale_mlogicore_resources), .resources = timberdale_mlogicore_resources, }, { .name = "timb-video", .num_resources = ARRAY_SIZE(timberdale_video_resources), .resources = timberdale_video_resources, .platform_data = &timberdale_video_platform_data, }, { .name = "timb-radio", .num_resources = ARRAY_SIZE(timberdale_radio_resources), .resources = timberdale_radio_resources, .platform_data = &timberdale_radio_platform_data, }, { .name = "xilinx_spi", .num_resources = ARRAY_SIZE(timberdale_spi_resources), .resources = timberdale_spi_resources, .platform_data = &timberdale_xspi_platform_data, }, { .name = "ks8842", .num_resources = ARRAY_SIZE(timberdale_eth_resources), .resources = timberdale_eth_resources, .platform_data = &timberdale_ks8842_platform_data, }, }; static __devinitdata struct mfd_cell timberdale_cells_bar0_cfg2[] = { { .name = "timb-dma", .num_resources = ARRAY_SIZE(timberdale_dma_resources), .resources = timberdale_dma_resources, .platform_data = &timb_dma_platform_data, }, { .name = "timb-uart", .num_resources = ARRAY_SIZE(timberdale_uart_resources), .resources = timberdale_uart_resources, }, { .name = "xiic-i2c", .num_resources = ARRAY_SIZE(timberdale_xiic_resources), .resources = timberdale_xiic_resources, .platform_data = &timberdale_xiic_platform_data, }, { .name = "timb-gpio", .num_resources = ARRAY_SIZE(timberdale_gpio_resources), .resources = timberdale_gpio_resources, .platform_data = &timberdale_gpio_platform_data, }, { .name = "timb-video", .num_resources = ARRAY_SIZE(timberdale_video_resources), .resources = timberdale_video_resources, .platform_data = &timberdale_video_platform_data, }, { .name = "timb-radio", .num_resources = ARRAY_SIZE(timberdale_radio_resources), .resources = timberdale_radio_resources, .platform_data = &timberdale_radio_platform_data, }, { .name = "xilinx_spi", .num_resources = ARRAY_SIZE(timberdale_spi_resources), .resources = timberdale_spi_resources, .platform_data = &timberdale_xspi_platform_data, }, }; static __devinitdata struct mfd_cell timberdale_cells_bar0_cfg3[] = { { .name = "timb-dma", .num_resources = ARRAY_SIZE(timberdale_dma_resources), .resources = timberdale_dma_resources, .platform_data = &timb_dma_platform_data, }, { .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, }, { .name = "timb-gpio", .num_resources = ARRAY_SIZE(timberdale_gpio_resources), .resources = timberdale_gpio_resources, .platform_data = &timberdale_gpio_platform_data, }, { .name = "timb-video", .num_resources = ARRAY_SIZE(timberdale_video_resources), .resources = timberdale_video_resources, .platform_data = &timberdale_video_platform_data, }, { .name = "timb-radio", .num_resources = ARRAY_SIZE(timberdale_radio_resources), .resources = timberdale_radio_resources, .platform_data = &timberdale_radio_platform_data, }, { .name = "xilinx_spi", .num_resources = ARRAY_SIZE(timberdale_spi_resources), .resources = timberdale_spi_resources, .platform_data = &timberdale_xspi_platform_data, }, { .name = "ks8842", .num_resources = ARRAY_SIZE(timberdale_eth_resources), .resources = timberdale_eth_resources, .platform_data = &timberdale_ks8842_platform_data, }, }; 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 "); MODULE_VERSION(DRV_VERSION); MODULE_LICENSE("GPL v2");