@@ -162,6 +162,14 @@ config USB_EHCI_HCD_OMAP
Enables support for the on-chip EHCI controller on
OMAP3 and later chips.
+config USB_EHCI_HCD_SPEAR
+ tristate "Support for ST SPEAr on-chip EHCI USB controller"
+ depends on USB_EHCI_HCD && PLAT_SPEAR
+ default y
+ ---help---
+ Enables support for the on-chip EHCI controller on
+ ST SPEAr chips.
+
config USB_EHCI_MSM
bool "Support for MSM on-chip EHCI USB controller"
depends on USB_EHCI_HCD && ARCH_MSM
@@ -27,6 +27,7 @@ obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o
obj-$(CONFIG_USB_EHCI_PCI) += ehci-pci.o
obj-$(CONFIG_USB_EHCI_HCD_PLATFORM) += ehci-platform.o
obj-$(CONFIG_USB_EHCI_MXC) += ehci-mxc.o
+obj-$(CONFIG_USB_EHCI_HCD_SPEAR) += ehci-spear.o
obj-$(CONFIG_USB_OXU210HP_HCD) += oxu210hp-hcd.o
obj-$(CONFIG_USB_ISP116X_HCD) += isp116x-hcd.o
@@ -1297,11 +1297,6 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER vt8500_ehci_driver
#endif
-#ifdef CONFIG_PLAT_SPEAR
-#include "ehci-spear.c"
-#define PLATFORM_DRIVER spear_ehci_hcd_driver
-#endif
-
#ifdef CONFIG_USB_EHCI_MSM
#include "ehci-msm.c"
#define PLATFORM_DRIVER ehci_msm_driver
@@ -1346,6 +1341,7 @@ MODULE_LICENSE ("GPL");
!IS_ENABLED(CONFIG_USB_EHCI_HCD_PLATFORM) && \
!IS_ENABLED(CONFIG_USB_CHIPIDEA_HOST) && \
!IS_ENABLED(CONFIG_USB_EHCI_MXC) && \
+ !IS_ENABLED(CONFIG_PLAT_SPEAR) && \
!defined(PLATFORM_DRIVER) && \
!defined(PS3_SYSTEM_BUS_DRIVER) && \
!defined(OF_PLATFORM_DRIVER) && \
@@ -1,5 +1,5 @@
/*
-* Driver for EHCI HCD on SPEAR SOC
+* Driver for EHCI HCD on SPEAr SOC
*
* Copyright (C) 2010 ST Micro Electronics,
* Deepak Sikri <deepak.sikri@st.com>
@@ -12,17 +12,28 @@
*/
#include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
#include <linux/jiffies.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+
+#include "ehci.h"
+
+#define DRIVER_DESC "EHCI SPEAr driver"
+
+static const char hcd_name[] = "SPEAr-ehci";
struct spear_ehci {
- struct ehci_hcd ehci;
struct clk *clk;
};
-#define to_spear_ehci(hcd) (struct spear_ehci *)hcd_to_ehci(hcd)
+#define to_spear_ehci(hcd) (struct spear_ehci *)(hcd_to_ehci(hcd)->priv)
static void spear_start_ehci(struct spear_ehci *ehci)
{
@@ -34,49 +45,7 @@ static void spear_stop_ehci(struct spear_ehci *ehci)
clk_disable_unprepare(ehci->clk);
}
-static int ehci_spear_setup(struct usb_hcd *hcd)
-{
- struct ehci_hcd *ehci = hcd_to_ehci(hcd);
-
- /* registers start at offset 0x0 */
- ehci->caps = hcd->regs;
-
- return ehci_setup(hcd);
-}
-
-static const struct hc_driver ehci_spear_hc_driver = {
- .description = hcd_name,
- .product_desc = "SPEAr EHCI",
- .hcd_priv_size = sizeof(struct spear_ehci),
-
- /* generic hardware linkage */
- .irq = ehci_irq,
- .flags = HCD_MEMORY | HCD_USB2,
-
- /* basic lifecycle operations */
- .reset = ehci_spear_setup,
- .start = ehci_run,
- .stop = ehci_stop,
- .shutdown = ehci_shutdown,
-
- /* managing i/o requests and associated device resources */
- .urb_enqueue = ehci_urb_enqueue,
- .urb_dequeue = ehci_urb_dequeue,
- .endpoint_disable = ehci_endpoint_disable,
- .endpoint_reset = ehci_endpoint_reset,
-
- /* scheduling support */
- .get_frame_number = ehci_get_frame,
-
- /* root hub support */
- .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 struct hc_driver __read_mostly ehci_spear_hc_driver;
#ifdef CONFIG_PM
static int ehci_spear_drv_suspend(struct device *dev)
@@ -161,7 +130,7 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
goto err_put_hcd;
}
- ehci = (struct spear_ehci *)hcd_to_ehci(hcd);
+ ehci = to_spear_ehci(hcd);
ehci->clk = usbh_clk;
spear_start_ehci(ehci);
@@ -216,4 +185,29 @@ static struct platform_driver spear_ehci_hcd_driver = {
}
};
+static const struct ehci_driver_overrides spear_overrides __initdata = {
+ .extra_priv_size = sizeof(struct spear_ehci),
+};
+
+static int __init ehci_spear_init(void)
+{
+ if (usb_disabled())
+ return -ENODEV;
+
+ pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+
+ ehci_init_driver(&ehci_spear_hc_driver, &spear_overrides);
+ return platform_driver_register(&spear_ehci_hcd_driver);
+}
+module_init(ehci_spear_init);
+
+static void __exit ehci_spear_cleanup(void)
+{
+ platform_driver_unregister(&spear_ehci_hcd_driver);
+}
+module_exit(ehci_spear_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_ALIAS("platform:spear-ehci");
+MODULE_AUTHOR("Deepak Sikri");
+MODULE_LICENSE("GPL");