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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2015-01-21 00:56:02 +0200
committerFelipe Balbi <balbi@ti.com>2015-01-27 09:39:38 -0600
commit7ef077a8ad3557f030d0407c4f56c5a0cf1e418a (patch)
treed9096193b4cb402d2b4c381ba5376449d52db18f /drivers/usb/host/isp1760-if.c
parent0316ca6319b98e485325be98a47d08fed07ead43 (diff)
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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.c312
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);