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path: root/drivers/usb/host/isp1760-if.c
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Diffstat (limited to 'drivers/usb/host/isp1760-if.c')
-rw-r--r--drivers/usb/host/isp1760-if.c477
1 files changed, 0 insertions, 477 deletions
diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c
deleted file mode 100644
index 09254a43bc01..000000000000
--- a/drivers/usb/host/isp1760-if.c
+++ /dev/null
@@ -1,477 +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/platform_device.h>
-#include <linux/usb/isp1760.h>
-#include <linux/usb/hcd.h>
-
-#include "isp1760-hcd.h"
-
-#if defined(CONFIG_OF) && defined(CONFIG_OF_IRQ)
-#include <linux/slab.h>
-#include <linux/of.h>
-#include <linux/of_platform.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <linux/of_gpio.h>
-#endif
-
-#ifdef CONFIG_PCI
-#include <linux/pci.h>
-#endif
-
-#if defined(CONFIG_OF) && defined(CONFIG_OF_IRQ)
-struct isp1760 {
- struct usb_hcd *hcd;
- int rst_gpio;
-};
-
-static int of_isp1760_probe(struct platform_device *dev)
-{
- struct isp1760 *drvdata;
- struct device_node *dp = dev->dev.of_node;
- struct resource *res;
- struct resource memory;
- int virq;
- resource_size_t res_len;
- int ret;
- unsigned int devflags = 0;
- enum of_gpio_flags gpio_flags;
- u32 bus_width = 0;
-
- drvdata = kzalloc(sizeof(*drvdata), GFP_KERNEL);
- if (!drvdata)
- return -ENOMEM;
-
- ret = of_address_to_resource(dp, 0, &memory);
- if (ret) {
- ret = -ENXIO;
- goto free_data;
- }
-
- res_len = resource_size(&memory);
-
- res = request_mem_region(memory.start, res_len, dev_name(&dev->dev));
- if (!res) {
- ret = -EBUSY;
- goto free_data;
- }
-
- virq = irq_of_parse_and_map(dp, 0);
- if (!virq) {
- ret = -ENODEV;
- goto release_reg;
- }
-
- 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_get_property(dp, "port1-otg", NULL) != NULL)
- devflags |= ISP1760_FLAG_OTG_EN;
-
- if (of_get_property(dp, "analog-oc", NULL) != NULL)
- devflags |= ISP1760_FLAG_ANALOG_OC;
-
- if (of_get_property(dp, "dack-polarity", NULL) != NULL)
- devflags |= ISP1760_FLAG_DACK_POL_HIGH;
-
- if (of_get_property(dp, "dreq-polarity", NULL) != NULL)
- devflags |= ISP1760_FLAG_DREQ_POL_HIGH;
-
- drvdata->rst_gpio = of_get_gpio_flags(dp, 0, &gpio_flags);
- if (gpio_is_valid(drvdata->rst_gpio)) {
- ret = gpio_request(drvdata->rst_gpio, dev_name(&dev->dev));
- if (!ret) {
- if (!(gpio_flags & OF_GPIO_ACTIVE_LOW)) {
- devflags |= ISP1760_FLAG_RESET_ACTIVE_HIGH;
- gpio_direction_output(drvdata->rst_gpio, 0);
- } else {
- gpio_direction_output(drvdata->rst_gpio, 1);
- }
- } else {
- drvdata->rst_gpio = ret;
- }
- }
-
- drvdata->hcd = isp1760_register(memory.start, res_len, virq,
- IRQF_SHARED, drvdata->rst_gpio,
- &dev->dev, dev_name(&dev->dev),
- devflags);
- if (IS_ERR(drvdata->hcd)) {
- ret = PTR_ERR(drvdata->hcd);
- goto free_gpio;
- }
-
- platform_set_drvdata(dev, drvdata);
- return ret;
-
-free_gpio:
- if (gpio_is_valid(drvdata->rst_gpio))
- gpio_free(drvdata->rst_gpio);
-release_reg:
- release_mem_region(memory.start, res_len);
-free_data:
- kfree(drvdata);
- return ret;
-}
-
-static int of_isp1760_remove(struct platform_device *dev)
-{
- struct isp1760 *drvdata = platform_get_drvdata(dev);
-
- usb_remove_hcd(drvdata->hcd);
- iounmap(drvdata->hcd->regs);
- release_mem_region(drvdata->hcd->rsrc_start, drvdata->hcd->rsrc_len);
- usb_put_hcd(drvdata->hcd);
-
- if (gpio_is_valid(drvdata->rst_gpio))
- gpio_free(drvdata->rst_gpio);
-
- kfree(drvdata);
- return 0;
-}
-
-static const struct of_device_id of_isp1760_match[] = {
- {
- .compatible = "nxp,usb-isp1760",
- },
- {
- .compatible = "nxp,usb-isp1761",
- },
- { },
-};
-MODULE_DEVICE_TABLE(of, of_isp1760_match);
-
-static struct platform_driver isp1760_of_driver = {
- .driver = {
- .name = "nxp-isp1760",
- .of_match_table = of_isp1760_match,
- },
- .probe = of_isp1760_probe,
- .remove = of_isp1760_remove,
-};
-#endif
-
-#ifdef CONFIG_PCI
-static int isp1761_pci_probe(struct pci_dev *dev,
- const struct pci_device_id *id)
-{
- u8 latency, limit;
- __u32 reg_data;
- int retry_count;
- struct usb_hcd *hcd;
- unsigned int devflags = 0;
- int ret_status = 0;
-
- resource_size_t pci_mem_phy0;
- resource_size_t memlength;
-
- u8 __iomem *chip_addr;
- u8 __iomem *iobase;
- resource_size_t nxp_pci_io_base;
- resource_size_t iolength;
-
- if (usb_disabled())
- return -ENODEV;
-
- if (pci_enable_device(dev) < 0)
- return -ENODEV;
-
- if (!dev->irq)
- return -ENODEV;
-
- /* Grab the PLX PCI mem maped port start address we need */
- nxp_pci_io_base = pci_resource_start(dev, 0);
- iolength = pci_resource_len(dev, 0);
-
- if (!request_mem_region(nxp_pci_io_base, iolength, "ISP1761 IO MEM")) {
- printk(KERN_ERR "request region #1\n");
- return -EBUSY;
- }
-
- iobase = ioremap_nocache(nxp_pci_io_base, iolength);
- if (!iobase) {
- printk(KERN_ERR "ioremap #1\n");
- ret_status = -ENOMEM;
- goto cleanup1;
- }
- /* Grab the PLX PCI shared memory of the ISP 1761 we need */
- pci_mem_phy0 = pci_resource_start(dev, 3);
- memlength = pci_resource_len(dev, 3);
- if (memlength < 0xffff) {
- printk(KERN_ERR "memory length for this resource is wrong\n");
- ret_status = -ENOMEM;
- goto cleanup2;
- }
-
- if (!request_mem_region(pci_mem_phy0, memlength, "ISP-PCI")) {
- printk(KERN_ERR "host controller already in use\n");
- ret_status = -EBUSY;
- goto cleanup2;
- }
-
- /* map available memory */
- chip_addr = ioremap_nocache(pci_mem_phy0,memlength);
- if (!chip_addr) {
- printk(KERN_ERR "Error ioremap failed\n");
- ret_status = -ENOMEM;
- goto cleanup3;
- }
-
- /* 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, chip_addr + HC_SCRATCH_REG);
- udelay(100);
- reg_data = readl(chip_addr + HC_SCRATCH_REG) & 0x0000ffff;
- retry_count--;
- }
-
- iounmap(chip_addr);
-
- /* 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);
- ret_status = -ENOMEM;
- goto cleanup3;
- }
-
- pci_set_master(dev);
-
- /* 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);
-
- dev->dev.dma_mask = NULL;
- hcd = isp1760_register(pci_mem_phy0, memlength, dev->irq,
- IRQF_SHARED, -ENOENT, &dev->dev, dev_name(&dev->dev),
- devflags);
- if (IS_ERR(hcd)) {
- ret_status = -ENODEV;
- goto cleanup3;
- }
-
- /* done with PLX IO access */
- iounmap(iobase);
- release_mem_region(nxp_pci_io_base, iolength);
-
- pci_set_drvdata(dev, hcd);
- return 0;
-
-cleanup3:
- release_mem_region(pci_mem_phy0, memlength);
-cleanup2:
- iounmap(iobase);
-cleanup1:
- release_mem_region(nxp_pci_io_base, iolength);
- return ret_status;
-}
-
-static void isp1761_pci_remove(struct pci_dev *dev)
-{
- struct usb_hcd *hcd;
-
- hcd = pci_get_drvdata(dev);
-
- usb_remove_hcd(hcd);
- iounmap(hcd->regs);
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
- usb_put_hcd(hcd);
-
- 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)
-{
- int ret = 0;
- struct usb_hcd *hcd;
- struct resource *mem_res;
- struct resource *irq_res;
- resource_size_t mem_size;
- struct isp1760_platform_data *priv = dev_get_platdata(&pdev->dev);
- unsigned int devflags = 0;
- unsigned long irqflags = IRQF_SHARED;
-
- mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!mem_res) {
- pr_warning("isp1760: Memory resource not available\n");
- ret = -ENODEV;
- goto out;
- }
- mem_size = resource_size(mem_res);
- if (!request_mem_region(mem_res->start, mem_size, "isp1760")) {
- pr_warning("isp1760: Cannot reserve the memory resource\n");
- ret = -EBUSY;
- goto out;
- }
-
- irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!irq_res) {
- pr_warning("isp1760: IRQ resource not available\n");
- ret = -ENODEV;
- goto cleanup;
- }
-
- irqflags |= irq_res->flags & IRQF_TRIGGER_MASK;
-
- if (priv) {
- if (priv->is_isp1761)
- devflags |= ISP1760_FLAG_ISP1761;
- if (priv->bus_width_16)
- devflags |= ISP1760_FLAG_BUS_WIDTH_16;
- if (priv->port1_otg)
- devflags |= ISP1760_FLAG_OTG_EN;
- if (priv->analog_oc)
- devflags |= ISP1760_FLAG_ANALOG_OC;
- if (priv->dack_polarity_high)
- devflags |= ISP1760_FLAG_DACK_POL_HIGH;
- if (priv->dreq_polarity_high)
- devflags |= ISP1760_FLAG_DREQ_POL_HIGH;
- }
-
- hcd = isp1760_register(mem_res->start, mem_size, irq_res->start,
- irqflags, -ENOENT,
- &pdev->dev, dev_name(&pdev->dev), devflags);
-
- platform_set_drvdata(pdev, hcd);
-
- if (IS_ERR(hcd)) {
- pr_warning("isp1760: Failed to register the HCD device\n");
- ret = -ENODEV;
- goto cleanup;
- }
-
- pr_info("ISP1760 USB device initialised\n");
- return ret;
-
-cleanup:
- release_mem_region(mem_res->start, mem_size);
-out:
- return ret;
-}
-
-static int isp1760_plat_remove(struct platform_device *pdev)
-{
- struct resource *mem_res;
- resource_size_t mem_size;
- struct usb_hcd *hcd = platform_get_drvdata(pdev);
-
- usb_remove_hcd(hcd);
-
- mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- mem_size = resource_size(mem_res);
- release_mem_region(mem_res->start, mem_size);
-
- usb_put_hcd(hcd);
-
- return 0;
-}
-
-static struct platform_driver isp1760_plat_driver = {
- .probe = isp1760_plat_probe,
- .remove = isp1760_plat_remove,
- .driver = {
- .name = "isp1760",
- },
-};
-
-static int __init isp1760_init(void)
-{
- int ret, any_ret = -ENODEV;
-
- init_kmem_once();
-
- ret = platform_driver_register(&isp1760_plat_driver);
- if (!ret)
- any_ret = 0;
-#if defined(CONFIG_OF) && defined(CONFIG_OF_IRQ)
- ret = platform_driver_register(&isp1760_of_driver);
- if (!ret)
- any_ret = 0;
-#endif
-#ifdef CONFIG_PCI
- ret = pci_register_driver(&isp1761_pci_driver);
- if (!ret)
- any_ret = 0;
-#endif
-
- if (any_ret)
- deinit_kmem_cache();
- return any_ret;
-}
-module_init(isp1760_init);
-
-static void __exit isp1760_exit(void)
-{
- platform_driver_unregister(&isp1760_plat_driver);
-#if defined(CONFIG_OF) && defined(CONFIG_OF_IRQ)
- platform_driver_unregister(&isp1760_of_driver);
-#endif
-#ifdef CONFIG_PCI
- pci_unregister_driver(&isp1761_pci_driver);
-#endif
- deinit_kmem_cache();
-}
-module_exit(isp1760_exit);