summaryrefslogtreecommitdiffstats
path: root/drivers/usb/host/ohci-nxp.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb/host/ohci-nxp.c')
-rw-r--r--drivers/usb/host/ohci-nxp.c128
1 files changed, 51 insertions, 77 deletions
diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c
index 7d7d507d54e..e99db8a6d55 100644
--- a/drivers/usb/host/ohci-nxp.c
+++ b/drivers/usb/host/ohci-nxp.c
@@ -19,10 +19,19 @@
* or implied.
*/
#include <linux/clk.h>
-#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
#include <linux/i2c.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
#include <linux/of.h>
+#include <linux/platform_device.h>
#include <linux/usb/isp1301.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+
+#include "ohci.h"
+
#include <mach/hardware.h>
#include <asm/mach-types.h>
@@ -57,6 +66,11 @@
#define start_int_umask(irq)
#endif
+#define DRIVER_DESC "OHCI NXP driver"
+
+static const char hcd_name[] = "ohci-nxp";
+static struct hc_driver __read_mostly ohci_nxp_hc_driver;
+
static struct i2c_client *isp1301_i2c_client;
extern int usb_disabled(void);
@@ -132,14 +146,14 @@ static inline void isp1301_vbus_off(void)
OTG1_VBUS_DRV);
}
-static void nxp_start_hc(void)
+static void ohci_nxp_start_hc(void)
{
unsigned long tmp = __raw_readl(USB_OTG_STAT_CONTROL) | HOST_EN;
__raw_writel(tmp, USB_OTG_STAT_CONTROL);
isp1301_vbus_on();
}
-static void nxp_stop_hc(void)
+static void ohci_nxp_stop_hc(void)
{
unsigned long tmp;
isp1301_vbus_off();
@@ -147,68 +161,9 @@ static void nxp_stop_hc(void)
__raw_writel(tmp, USB_OTG_STAT_CONTROL);
}
-static int ohci_nxp_start(struct usb_hcd *hcd)
-{
- struct ohci_hcd *ohci = hcd_to_ohci(hcd);
- int ret;
-
- if ((ret = ohci_init(ohci)) < 0)
- return ret;
-
- if ((ret = ohci_run(ohci)) < 0) {
- dev_err(hcd->self.controller, "can't start\n");
- ohci_stop(hcd);
- return ret;
- }
- return 0;
-}
-
-static const struct hc_driver ohci_nxp_hc_driver = {
- .description = hcd_name,
- .product_desc = "nxp OHCI",
-
- /*
- * generic hardware linkage
- */
- .irq = ohci_irq,
- .flags = HCD_USB11 | HCD_MEMORY,
-
- .hcd_priv_size = sizeof(struct ohci_hcd),
- /*
- * basic lifecycle operations
- */
- .start = ohci_nxp_start,
- .stop = ohci_stop,
- .shutdown = ohci_shutdown,
-
- /*
- * managing i/o requests and associated device resources
- */
- .urb_enqueue = ohci_urb_enqueue,
- .urb_dequeue = ohci_urb_dequeue,
- .endpoint_disable = ohci_endpoint_disable,
-
- /*
- * scheduling support
- */
- .get_frame_number = ohci_get_frame,
-
- /*
- * root hub support
- */
- .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 usb_hcd_nxp_probe(struct platform_device *pdev)
+static int ohci_hcd_nxp_probe(struct platform_device *pdev)
{
struct usb_hcd *hcd = 0;
- struct ohci_hcd *ohci;
const struct hc_driver *driver = &ohci_nxp_hc_driver;
struct resource *res;
int ret = 0, irq;
@@ -226,8 +181,9 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
return -EPROBE_DEFER;
}
- pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
- pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+ ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+ if (ret)
+ goto fail_disable;
dev_dbg(&pdev->dev, "%s: " DRIVER_DESC " (nxp)\n", hcd_name);
if (usb_disabled()) {
@@ -313,17 +269,15 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
goto fail_resource;
}
- nxp_start_hc();
+ ohci_nxp_start_hc();
platform_set_drvdata(pdev, hcd);
- ohci = hcd_to_ohci(hcd);
- ohci_hcd_init(ohci);
dev_info(&pdev->dev, "at 0x%p, irq %d\n", hcd->regs, hcd->irq);
ret = usb_add_hcd(hcd, irq, 0);
if (ret == 0)
return ret;
- nxp_stop_hc();
+ ohci_nxp_stop_hc();
fail_resource:
usb_put_hcd(hcd);
fail_hcd:
@@ -345,12 +299,12 @@ fail_disable:
return ret;
}
-static int usb_hcd_nxp_remove(struct platform_device *pdev)
+static int ohci_hcd_nxp_remove(struct platform_device *pdev)
{
struct usb_hcd *hcd = platform_get_drvdata(pdev);
usb_remove_hcd(hcd);
- nxp_stop_hc();
+ ohci_nxp_stop_hc();
usb_put_hcd(hcd);
clk_disable(usb_pll_clk);
clk_put(usb_pll_clk);
@@ -366,20 +320,40 @@ static int usb_hcd_nxp_remove(struct platform_device *pdev)
MODULE_ALIAS("platform:usb-ohci");
#ifdef CONFIG_OF
-static const struct of_device_id usb_hcd_nxp_match[] = {
+static const struct of_device_id ohci_hcd_nxp_match[] = {
{ .compatible = "nxp,ohci-nxp" },
{},
};
-MODULE_DEVICE_TABLE(of, usb_hcd_nxp_match);
+MODULE_DEVICE_TABLE(of, ohci_hcd_nxp_match);
#endif
-static struct platform_driver usb_hcd_nxp_driver = {
+static struct platform_driver ohci_hcd_nxp_driver = {
.driver = {
.name = "usb-ohci",
.owner = THIS_MODULE,
- .of_match_table = of_match_ptr(usb_hcd_nxp_match),
+ .of_match_table = of_match_ptr(ohci_hcd_nxp_match),
},
- .probe = usb_hcd_nxp_probe,
- .remove = usb_hcd_nxp_remove,
+ .probe = ohci_hcd_nxp_probe,
+ .remove = ohci_hcd_nxp_remove,
};
+static int __init ohci_nxp_init(void)
+{
+ if (usb_disabled())
+ return -ENODEV;
+
+ pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+
+ ohci_init_driver(&ohci_nxp_hc_driver, NULL);
+ return platform_driver_register(&ohci_hcd_nxp_driver);
+}
+module_init(ohci_nxp_init);
+
+static void __exit ohci_nxp_cleanup(void)
+{
+ platform_driver_unregister(&ohci_hcd_nxp_driver);
+}
+module_exit(ohci_nxp_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL v2");