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author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2015-01-21 01:56:02 +0300 |
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committer | Felipe Balbi <balbi@ti.com> | 2015-01-27 18:39:38 +0300 |
commit | 7ef077a8ad3557f030d0407c4f56c5a0cf1e418a (patch) | |
tree | d9096193b4cb402d2b4c381ba5376449d52db18f /drivers/usb/host/isp1760-if.c | |
parent | 0316ca6319b98e485325be98a47d08fed07ead43 (diff) | |
download | linux-7ef077a8ad3557f030d0407c4f56c5a0cf1e418a.tar.xz |
usb: isp1760: Move driver from drivers/usb/host/ to drivers/usb/isp1760/
Now that this is DRD, it doesn't make sense to keep it under
drivers/usb/host.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/host/isp1760-if.c')
-rw-r--r-- | drivers/usb/host/isp1760-if.c | 312 |
1 files changed, 0 insertions, 312 deletions
diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c deleted file mode 100644 index c2a94c966350..000000000000 --- a/drivers/usb/host/isp1760-if.c +++ /dev/null @@ -1,312 +0,0 @@ -/* - * Glue code for the ISP1760 driver and bus - * Currently there is support for - * - OpenFirmware - * - PCI - * - PDEV (generic platform device centralized driver model) - * - * (c) 2007 Sebastian Siewior <bigeasy@linutronix.de> - * - */ - -#include <linux/usb.h> -#include <linux/io.h> -#include <linux/module.h> -#include <linux/of.h> -#include <linux/platform_device.h> -#include <linux/slab.h> -#include <linux/usb/isp1760.h> -#include <linux/usb/hcd.h> - -#include "isp1760-core.h" -#include "isp1760-regs.h" - -#ifdef CONFIG_PCI -#include <linux/pci.h> -#endif - -#ifdef CONFIG_PCI -static int isp1761_pci_init(struct pci_dev *dev) -{ - resource_size_t mem_start; - resource_size_t mem_length; - u8 __iomem *iobase; - u8 latency, limit; - int retry_count; - u32 reg_data; - - /* Grab the PLX PCI shared memory of the ISP 1761 we need */ - mem_start = pci_resource_start(dev, 3); - mem_length = pci_resource_len(dev, 3); - if (mem_length < 0xffff) { - printk(KERN_ERR "memory length for this resource is wrong\n"); - return -ENOMEM; - } - - if (!request_mem_region(mem_start, mem_length, "ISP-PCI")) { - printk(KERN_ERR "host controller already in use\n"); - return -EBUSY; - } - - /* map available memory */ - iobase = ioremap_nocache(mem_start, mem_length); - if (!iobase) { - printk(KERN_ERR "Error ioremap failed\n"); - release_mem_region(mem_start, mem_length); - return -ENOMEM; - } - - /* bad pci latencies can contribute to overruns */ - pci_read_config_byte(dev, PCI_LATENCY_TIMER, &latency); - if (latency) { - pci_read_config_byte(dev, PCI_MAX_LAT, &limit); - if (limit && limit < latency) - pci_write_config_byte(dev, PCI_LATENCY_TIMER, limit); - } - - /* Try to check whether we can access Scratch Register of - * Host Controller or not. The initial PCI access is retried until - * local init for the PCI bridge is completed - */ - retry_count = 20; - reg_data = 0; - while ((reg_data != 0xFACE) && retry_count) { - /*by default host is in 16bit mode, so - * io operations at this stage must be 16 bit - * */ - writel(0xface, iobase + HC_SCRATCH_REG); - udelay(100); - reg_data = readl(iobase + HC_SCRATCH_REG) & 0x0000ffff; - retry_count--; - } - - iounmap(iobase); - release_mem_region(mem_start, mem_length); - - /* Host Controller presence is detected by writing to scratch register - * and reading back and checking the contents are same or not - */ - if (reg_data != 0xFACE) { - dev_err(&dev->dev, "scratch register mismatch %x\n", reg_data); - return -ENOMEM; - } - - /* Grab the PLX PCI mem maped port start address we need */ - mem_start = pci_resource_start(dev, 0); - mem_length = pci_resource_len(dev, 0); - - if (!request_mem_region(mem_start, mem_length, "ISP1761 IO MEM")) { - printk(KERN_ERR "request region #1\n"); - return -EBUSY; - } - - iobase = ioremap_nocache(mem_start, mem_length); - if (!iobase) { - printk(KERN_ERR "ioremap #1\n"); - release_mem_region(mem_start, mem_length); - return -ENOMEM; - } - - /* configure PLX PCI chip to pass interrupts */ -#define PLX_INT_CSR_REG 0x68 - reg_data = readl(iobase + PLX_INT_CSR_REG); - reg_data |= 0x900; - writel(reg_data, iobase + PLX_INT_CSR_REG); - - /* done with PLX IO access */ - iounmap(iobase); - release_mem_region(mem_start, mem_length); - - return 0; -} - -static int isp1761_pci_probe(struct pci_dev *dev, - const struct pci_device_id *id) -{ - unsigned int devflags = 0; - int ret; - - if (usb_disabled()) - return -ENODEV; - - if (!dev->irq) - return -ENODEV; - - if (pci_enable_device(dev) < 0) - return -ENODEV; - - ret = isp1761_pci_init(dev); - if (ret < 0) - goto error; - - pci_set_master(dev); - - dev->dev.dma_mask = NULL; - ret = isp1760_register(&dev->resource[3], dev->irq, 0, &dev->dev, - devflags); - if (ret < 0) - goto error; - - return 0; - -error: - pci_disable_device(dev); - return ret; -} - -static void isp1761_pci_remove(struct pci_dev *dev) -{ - isp1760_unregister(&dev->dev); - - pci_disable_device(dev); -} - -static void isp1761_pci_shutdown(struct pci_dev *dev) -{ - printk(KERN_ERR "ips1761_pci_shutdown\n"); -} - -static const struct pci_device_id isp1760_plx [] = { - { - .class = PCI_CLASS_BRIDGE_OTHER << 8, - .class_mask = ~0, - .vendor = PCI_VENDOR_ID_PLX, - .device = 0x5406, - .subvendor = PCI_VENDOR_ID_PLX, - .subdevice = 0x9054, - }, - { } -}; -MODULE_DEVICE_TABLE(pci, isp1760_plx); - -static struct pci_driver isp1761_pci_driver = { - .name = "isp1760", - .id_table = isp1760_plx, - .probe = isp1761_pci_probe, - .remove = isp1761_pci_remove, - .shutdown = isp1761_pci_shutdown, -}; -#endif - -static int isp1760_plat_probe(struct platform_device *pdev) -{ - unsigned long irqflags; - unsigned int devflags = 0; - struct resource *mem_res; - struct resource *irq_res; - int ret; - - mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - - irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (!irq_res) { - pr_warning("isp1760: IRQ resource not available\n"); - return -ENODEV; - } - irqflags = irq_res->flags & IRQF_TRIGGER_MASK; - - if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) { - struct device_node *dp = pdev->dev.of_node; - u32 bus_width = 0; - - if (of_device_is_compatible(dp, "nxp,usb-isp1761")) - devflags |= ISP1760_FLAG_ISP1761; - - /* Some systems wire up only 16 of the 32 data lines */ - of_property_read_u32(dp, "bus-width", &bus_width); - if (bus_width == 16) - devflags |= ISP1760_FLAG_BUS_WIDTH_16; - - if (of_property_read_bool(dp, "port1-otg")) - devflags |= ISP1760_FLAG_OTG_EN; - - if (of_property_read_bool(dp, "analog-oc")) - devflags |= ISP1760_FLAG_ANALOG_OC; - - if (of_property_read_bool(dp, "dack-polarity")) - devflags |= ISP1760_FLAG_DACK_POL_HIGH; - - if (of_property_read_bool(dp, "dreq-polarity")) - devflags |= ISP1760_FLAG_DREQ_POL_HIGH; - } else if (dev_get_platdata(&pdev->dev)) { - struct isp1760_platform_data *pdata = - dev_get_platdata(&pdev->dev); - - if (pdata->is_isp1761) - devflags |= ISP1760_FLAG_ISP1761; - if (pdata->bus_width_16) - devflags |= ISP1760_FLAG_BUS_WIDTH_16; - if (pdata->port1_otg) - devflags |= ISP1760_FLAG_OTG_EN; - if (pdata->analog_oc) - devflags |= ISP1760_FLAG_ANALOG_OC; - if (pdata->dack_polarity_high) - devflags |= ISP1760_FLAG_DACK_POL_HIGH; - if (pdata->dreq_polarity_high) - devflags |= ISP1760_FLAG_DREQ_POL_HIGH; - } - - ret = isp1760_register(mem_res, irq_res->start, irqflags, &pdev->dev, - devflags); - if (ret < 0) - return ret; - - pr_info("ISP1760 USB device initialised\n"); - return 0; -} - -static int isp1760_plat_remove(struct platform_device *pdev) -{ - isp1760_unregister(&pdev->dev); - - return 0; -} - -#ifdef CONFIG_OF -static const struct of_device_id isp1760_of_match[] = { - { .compatible = "nxp,usb-isp1760", }, - { .compatible = "nxp,usb-isp1761", }, - { }, -}; -MODULE_DEVICE_TABLE(of, isp1760_of_match); -#endif - -static struct platform_driver isp1760_plat_driver = { - .probe = isp1760_plat_probe, - .remove = isp1760_plat_remove, - .driver = { - .name = "isp1760", - .of_match_table = of_match_ptr(isp1760_of_match), - }, -}; - -static int __init isp1760_init(void) -{ - int ret, any_ret = -ENODEV; - - isp1760_init_kmem_once(); - - ret = platform_driver_register(&isp1760_plat_driver); - if (!ret) - any_ret = 0; -#ifdef CONFIG_PCI - ret = pci_register_driver(&isp1761_pci_driver); - if (!ret) - any_ret = 0; -#endif - - if (any_ret) - isp1760_deinit_kmem_cache(); - return any_ret; -} -module_init(isp1760_init); - -static void __exit isp1760_exit(void) -{ - platform_driver_unregister(&isp1760_plat_driver); -#ifdef CONFIG_PCI - pci_unregister_driver(&isp1761_pci_driver); -#endif - isp1760_deinit_kmem_cache(); -} -module_exit(isp1760_exit); |