From: Jayachandran C <jayachandranc@xxxxxxxxxxxxxxxxx>
Add supprt for on-chip USB controller for Netlogic XLS MIPS64
SoC processor family.
Changes are:
- update ehci-hcd.c and ohci-hcd.c to add XLS hcds
- add ehci-xls.c: EHCI support for Netlogic XLS.
- add ohci-xls.c: OHCI support for Netlogic XLS.
Signed-off-by: Jayachandran C <jayachandranc@xxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
drivers/usb/host/ehci-hcd.c | 5 ++
drivers/usb/host/ehci-xls.c | 161 +++++++++++++++++++++++++++++++++++++++++++
drivers/usb/host/ohci-hcd.c | 5 ++
drivers/usb/host/ohci-xls.c | 151 ++++++++++++++++++++++++++++++++++++++++
4 files changed, 322 insertions(+), 0 deletions(-)
create mode 100644 drivers/usb/host/ehci-xls.c
create mode 100644 drivers/usb/host/ohci-xls.c
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 750f60f..2af3e2a 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1296,6 +1296,11 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER ehci_pxa168_driver
#endif
+#ifdef CONFIG_NLM_XLR
+#include "ehci-xls.c"
+#define PLATFORM_DRIVER ehci_xls_driver
+#endif
+
#if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
!defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER) && \
!defined(XILINX_OF_PLATFORM_DRIVER)
diff --git a/drivers/usb/host/ehci-xls.c b/drivers/usb/host/ehci-xls.c
new file mode 100644
index 0000000..fe74bd6
--- /dev/null
+++ b/drivers/usb/host/ehci-xls.c
@@ -0,0 +1,161 @@
+/*
+ * EHCI HCD for Netlogic XLS processors.
+ *
+ * (C) Copyright 2011 Netlogic Microsystems Inc.
+ *
+ * Based on various ehci-*.c drivers
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#include <linux/platform_device.h>
+
+static int ehci_xls_setup(struct usb_hcd *hcd)
+{
+ int retval;
+ struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+
+ ehci->caps = hcd->regs;
+ ehci->regs = hcd->regs +
+ HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase));
+ dbg_hcs_params(ehci, "reset");
+ dbg_hcc_params(ehci, "reset");
+
+ /* cache this readonly data; minimize chip reads */
+ ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
+
+ retval = ehci_halt(ehci);
+ if (retval)
+ return retval;
+
+ /* data structure init */
+ retval = ehci_init(hcd);
+ if (retval)
+ return retval;
+
+ ehci_reset(ehci);
+
+ return retval;
+}
+
+int ehci_xls_probe_internal(const struct hc_driver *driver,
+ struct platform_device *pdev)
+{
+ struct usb_hcd *hcd;
+ struct resource *res;
+ int retval, irq;
+
+ /* Get our IRQ from an earlier registered Platform Resource */
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "Found HC with no IRQ. Check %s setup!\n",
+ dev_name(&pdev->dev));
+ return -ENODEV;
+ }
+
+ /* Get our Memory Handle */
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "Error: MMIO Handle %s setup!\n",
+ dev_name(&pdev->dev));
+ return -ENODEV;
+ }
+ hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
+ if (!hcd) {
+ retval = -ENOMEM;
+ goto err1;
+ }
+
+ hcd->rsrc_start = res->start;
+ hcd->rsrc_len = res->end - res->start + 1;
+
+ if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
+ driver->description)) {
+ dev_dbg(&pdev->dev, "controller already in use\n");
+ retval = -EBUSY;
+ goto err2;
+ }
+ hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
+
+ if (hcd->regs == NULL) {
+ dev_dbg(&pdev->dev, "error mapping memory\n");
+ retval = -EFAULT;
+ goto err3;
+ }
+
+ retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
+ if (retval != 0)
+ goto err4;
+ return retval;
+
+err4:
+ iounmap(hcd->regs);
+err3:
+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+err2:
+ usb_put_hcd(hcd);
+err1:
+ dev_err(&pdev->dev, "init %s fail, %d\n", dev_name(&pdev->dev),
+ retval);
+ return retval;
+}
+
+static struct hc_driver ehci_xls_hc_driver = {
+ .description = hcd_name,
+ .product_desc = "XLS EHCI Host Controller",
+ .hcd_priv_size = sizeof(struct ehci_hcd),
+ .irq = ehci_irq,
+ .flags = HCD_USB2 | HCD_MEMORY,
+ .reset = ehci_xls_setup,
+ .start = ehci_run,
+ .stop = ehci_stop,
+ .shutdown = ehci_shutdown,
+
+ .urb_enqueue = ehci_urb_enqueue,
+ .urb_dequeue = ehci_urb_dequeue,
+ .endpoint_disable = ehci_endpoint_disable,
+ .endpoint_reset = ehci_endpoint_reset,
+
+ .get_frame_number = ehci_get_frame,
+
+ .hub_status_data = ehci_hub_status_data,
+ .hub_control = ehci_hub_control,
+ .bus_suspend = ehci_bus_suspend,
+ .bus_resume = ehci_bus_resume,
+ .relinquish_port = ehci_relinquish_port,
+ .port_handed_over = ehci_port_handed_over,
+
+ .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
+};
+
+static int ehci_xls_probe(struct platform_device *pdev)
+{
+ if (usb_disabled())
+ return -ENODEV;
+
+ return ehci_xls_probe_internal(&ehci_xls_hc_driver, pdev);
+}
+
+static int ehci_xls_remove(struct platform_device *pdev)
+{
+ struct usb_hcd *hcd = platform_get_drvdata(pdev);
+
+ usb_remove_hcd(hcd);
+ iounmap(hcd->regs);
+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+ usb_put_hcd(hcd);
+ return 0;
+}
+
+MODULE_ALIAS("ehci-xls");
+
+static struct platform_driver ehci_xls_driver = {
+ .probe = ehci_xls_probe,
+ .remove = ehci_xls_remove,
+ .shutdown = usb_hcd_platform_shutdown,
+ .driver = {
+ .name = "ehci-xls",
+ },
+};
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index f9cf3f0..34efd47 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1114,6 +1114,11 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER ohci_hcd_ath79_driver
#endif
+#ifdef CONFIG_NLM_XLR
+#include "ohci-xls.c"
+#define PLATFORM_DRIVER ohci_xls_driver
+#endif
+
#if !defined(PCI_DRIVER) && \
!defined(PLATFORM_DRIVER) && \
!defined(OMAP1_PLATFORM_DRIVER) && \
diff --git a/drivers/usb/host/ohci-xls.c b/drivers/usb/host/ohci-xls.c
new file mode 100644
index 0000000..a3a9c6f
--- /dev/null
+++ b/drivers/usb/host/ohci-xls.c
@@ -0,0 +1,151 @@
+/*
+ * OHCI HCD for Netlogic XLS processors.
+ *
+ * (C) Copyright 2011 Netlogic Microsystems Inc.
+ *
+ * Based on ohci-au1xxx.c, and other Linux OHCI drivers.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/signal.h>
+
+static int ohci_xls_probe_internal(const struct hc_driver *driver,
+ struct platform_device *dev)
+{
+ struct resource *res;
+ struct usb_hcd *hcd;
+ int retval, irq;
+
+ /* Get our IRQ from an earlier registered Platform Resource */
+ irq = platform_get_irq(dev, 0);
+ if (irq < 0) {
+ dev_err(&dev->dev, "Found HC with no IRQ\n");
+ return -ENODEV;
+ }
+
+ /* Get our Memory Handle */
+ res = platform_get_resource(dev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&dev->dev, "MMIO Handle incorrect!\n");
+ return -ENODEV;
+ }
+
+ hcd = usb_create_hcd(driver, &dev->dev, "XLS");
+ if (!hcd) {
+ retval = -ENOMEM;
+ goto err1;
+ }
+ hcd->rsrc_start = res->start;
+ hcd->rsrc_len = res->end - res->start + 1;
+
+ if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
+ driver->description)) {
+ dev_dbg(&dev->dev, "Controller already in use\n");
+ retval = -EBUSY;
+ goto err2;
+ }
+
+ hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
+ if (hcd->regs == NULL) {
+ dev_dbg(&dev->dev, "error mapping memory\n");
+ retval = -EFAULT;
+ goto err3;
+ }
+
+ retval = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
+ if (retval != 0)
+ goto err4;
+ return retval;
+
+err4:
+ iounmap(hcd->regs);
+err3:
+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+err2:
+ usb_put_hcd(hcd);
+err1:
+ dev_err(&dev->dev, "init fail, %d\n", retval);
+ return retval;
+}
+
+static int ohci_xls_reset(struct usb_hcd *hcd)
+{
+ struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+
+ ohci_hcd_init(ohci);
+ return ohci_init(ohci);
+}
+
+static int __devinit ohci_xls_start(struct usb_hcd *hcd)
+{
+ struct ohci_hcd *ohci;
+ int ret;
+
+ ohci = hcd_to_ohci(hcd);
+ ret = ohci_run(ohci);
+ if (ret < 0) {
+ err("can't start %s", hcd->self.bus_name);
+ ohci_stop(hcd);
+ return ret;
+ }
+ return 0;
+}
+
+static struct hc_driver ohci_xls_hc_driver = {
+ .description = hcd_name,
+ .product_desc = "XLS OHCI Host Controller",
+ .hcd_priv_size = sizeof(struct ohci_hcd),
+ .irq = ohci_irq,
+ .flags = HCD_MEMORY | HCD_USB11,
+ .reset = ohci_xls_reset,
+ .start = ohci_xls_start,
+ .stop = ohci_stop,
+ .shutdown = ohci_shutdown,
+ .urb_enqueue = ohci_urb_enqueue,
+ .urb_dequeue = ohci_urb_dequeue,
+ .endpoint_disable = ohci_endpoint_disable,
+ .get_frame_number = ohci_get_frame,
+ .hub_status_data = ohci_hub_status_data,
+ .hub_control = ohci_hub_control,
+#ifdef CONFIG_PM
+ .bus_suspend = ohci_bus_suspend,
+ .bus_resume = ohci_bus_resume,
+#endif
+ .start_port_reset = ohci_start_port_reset,
+};
+
+static int ohci_xls_probe(struct platform_device *dev)
+{
+ int ret;
+
+ pr_debug("In ohci_xls_probe");
+ if (usb_disabled())
+ return -ENODEV;
+ ret = ohci_xls_probe_internal(&ohci_xls_hc_driver, dev);
+ return ret;
+}
+
+static int ohci_xls_remove(struct platform_device *dev)
+{
+ struct usb_hcd *hcd = platform_get_drvdata(dev);
+
+ usb_remove_hcd(hcd);
+ iounmap(hcd->regs);
+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+ usb_put_hcd(hcd);
+ return 0;
+}
+
+static struct platform_driver ohci_xls_driver = {
+ .probe = ohci_xls_probe,
+ .remove = ohci_xls_remove,
+ .shutdown = usb_hcd_platform_shutdown,
+ .driver = {
+ .name = "ohci-xls-0",
+ .owner = THIS_MODULE,
+ },
+};
--
1.7.7
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