zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/drivers/usb/host/isp1760-if.c b/ap/os/linux/linux-3.4.x/drivers/usb/host/isp1760-if.c
new file mode 100644
index 0000000..4592dc1
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/usb/host/isp1760-if.c
@@ -0,0 +1,473 @@
+/*
+ * 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;
+ struct of_irq oirq;
+ 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;
+ }
+
+ if (of_irq_map_one(dp, 0, &oirq)) {
+ ret = -ENODEV;
+ goto release_reg;
+ }
+
+ virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
+ oirq.size);
+
+ 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;
+ }
+
+ dev_set_drvdata(&dev->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 = dev_get_drvdata(&dev->dev);
+
+ dev_set_drvdata(&dev->dev, NULL);
+
+ 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",
+ .owner = THIS_MODULE,
+ .of_match_table = of_isp1760_match,
+ },
+ .probe = of_isp1760_probe,
+ .remove = of_isp1760_remove,
+};
+#endif
+
+#ifdef CONFIG_PCI
+static int __devinit 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 __devinit 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 = pdev->dev.platform_data;
+ 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");
+ return -ENODEV;
+ }
+ 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);
+ 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 __devexit isp1760_plat_remove(struct platform_device *pdev)
+{
+ struct resource *mem_res;
+ resource_size_t mem_size;
+
+ mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ mem_size = resource_size(mem_res);
+ release_mem_region(mem_res->start, mem_size);
+
+ return 0;
+}
+
+static struct platform_driver isp1760_plat_driver = {
+ .probe = isp1760_plat_probe,
+ .remove = __devexit_p(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);