* Copyright (C) 2004 SAN People (Pty) Ltd.
* Copyright (C) 2005 Thibaut VARENE <varenet@parisc-linux.org>
*
- * AT91 Bus Glue
+ * AT91RM9200 Bus Glue
*
* Based on fragments of 2.4 driver by Rick Bronson.
* Based on ohci-omap.c
#include <asm/hardware.h>
#include <asm/arch/board.h>
-#ifndef CONFIG_ARCH_AT91
-#error "CONFIG_ARCH_AT91 must be defined."
+#ifndef CONFIG_ARCH_AT91RM9200
+#error "CONFIG_ARCH_AT91RM9200 must be defined."
#endif
/* interface and function clocks */
static struct clk *iclk, *fclk;
-static int clocked;
extern int usb_disabled(void);
struct usb_hcd *hcd = platform_get_drvdata(pdev);
struct ohci_regs __iomem *regs = hcd->regs;
- dev_dbg(&pdev->dev, "start\n");
+ dev_dbg(&pdev->dev, "starting AT91RM9200 OHCI USB Controller\n");
/*
* Start the USB clocks.
*/
clk_enable(iclk);
clk_enable(fclk);
- clocked = 1;
/*
* The USB host controller must remain in reset.
struct usb_hcd *hcd = platform_get_drvdata(pdev);
struct ohci_regs __iomem *regs = hcd->regs;
- dev_dbg(&pdev->dev, "stop\n");
+ dev_dbg(&pdev->dev, "stopping AT91RM9200 OHCI USB Controller\n");
/*
* Put the USB host controller into reset.
*/
clk_disable(fclk);
clk_disable(iclk);
- clocked = 0;
}
/**
- * usb_hcd_at91_probe - initialize AT91-based HCDs
+ * usb_hcd_at91_probe - initialize AT91RM9200-based HCDs
* Context: !in_interrupt()
*
* Allocates basic resources for this USB host controller, and
* then invokes the start() method for the HCD associated with it
* through the hotplug entry's driver_data.
*/
-static int usb_hcd_at91_probe(const struct hc_driver *driver,
- struct platform_device *pdev)
+int usb_hcd_at91_probe (const struct hc_driver *driver, struct platform_device *pdev)
{
int retval;
struct usb_hcd *hcd = NULL;
return -ENODEV;
}
- if ((pdev->resource[0].flags != IORESOURCE_MEM)
- || (pdev->resource[1].flags != IORESOURCE_IRQ)) {
+ if ((pdev->resource[0].flags != IORESOURCE_MEM) || (pdev->resource[1].flags != IORESOURCE_IRQ)) {
pr_debug("hcd probe: invalid resource type\n");
return -ENODEV;
}
- hcd = usb_create_hcd(driver, &pdev->dev, "at91");
+ hcd = usb_create_hcd(driver, &pdev->dev, "at91rm9200");
if (!hcd)
return -ENOMEM;
hcd->rsrc_start = pdev->resource[0].start;
at91_start_hc(pdev);
ohci_hcd_init(hcd_to_ohci(hcd));
- retval = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_DISABLED);
+ retval = usb_add_hcd(hcd, pdev->resource[1].start, SA_INTERRUPT);
if (retval == 0)
return retval;
/* may be called with controller, bus, and devices active */
/**
- * usb_hcd_at91_remove - shutdown processing for AT91-based HCDs
+ * usb_hcd_at91_remove - shutdown processing for AT91RM9200-based HCDs
* @dev: USB Host Controller being removed
* Context: !in_interrupt()
*
* Reverses the effect of usb_hcd_at91_probe(), first invoking
* the HCD's stop() method. It is always called from a thread
- * context, "rmmod" or something similar.
+ * context, normally "rmmod", "apmd", or something similar.
*
*/
-static int usb_hcd_at91_remove(struct usb_hcd *hcd,
- struct platform_device *pdev)
+static int usb_hcd_at91_remove (struct usb_hcd *hcd, struct platform_device *pdev)
{
usb_remove_hcd(hcd);
at91_stop_hc(pdev);
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
- disable_irq_wake(hcd->irq);
clk_put(fclk);
clk_put(iclk);
static int __devinit
ohci_at91_start (struct usb_hcd *hcd)
{
- struct at91_usbh_data *board = hcd->self.controller->platform_data;
+// struct at91_ohci_data *board = hcd->self.controller->platform_data;
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
- struct usb_device *root = hcd->self.root_hub;
int ret;
if ((ret = ohci_init(ohci)) < 0)
return ret;
- root->maxchild = board->ports;
-
if ((ret = ohci_run(ohci)) < 0) {
err("can't start %s", hcd->self.bus_name);
ohci_stop(hcd);
return ret;
}
+// hcd->self.root_hub->maxchild = board->ports;
return 0;
}
static const struct hc_driver ohci_at91_hc_driver = {
.description = hcd_name,
- .product_desc = "AT91 OHCI",
+ .product_desc = "AT91RM9200 OHCI",
.hcd_priv_size = sizeof(struct ohci_hcd),
/*
/*-------------------------------------------------------------------------*/
-static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
+static int ohci_hcd_at91_drv_probe(struct platform_device *dev)
{
- device_init_wakeup(&pdev->dev, 1);
- return usb_hcd_at91_probe(&ohci_at91_hc_driver, pdev);
+ return usb_hcd_at91_probe(&ohci_at91_hc_driver, dev);
}
-static int ohci_hcd_at91_drv_remove(struct platform_device *pdev)
+static int ohci_hcd_at91_drv_remove(struct platform_device *dev)
{
- device_init_wakeup(&pdev->dev, 0);
- return usb_hcd_at91_remove(platform_get_drvdata(pdev), pdev);
+ return usb_hcd_at91_remove(platform_get_drvdata(dev), dev);
}
#ifdef CONFIG_PM
+/* REVISIT suspend/resume look "too" simple here */
+
static int
-ohci_hcd_at91_drv_suspend(struct platform_device *pdev, pm_message_t mesg)
+ohci_hcd_at91_drv_suspend(struct platform_device *dev, pm_message_t mesg)
{
- struct usb_hcd *hcd = platform_get_drvdata(pdev);
- struct ohci_hcd *ohci = hcd_to_ohci(hcd);
-
- if (device_may_wakeup(&pdev->dev))
- enable_irq_wake(hcd->irq);
- else
- disable_irq_wake(hcd->irq);
-
- /*
- * The integrated transceivers seem unable to notice disconnect,
- * reconnect, or wakeup without the 48 MHz clock active. so for
- * correctness, always discard connection state (using reset).
- *
- * REVISIT: some boards will be able to turn VBUS off...
- */
- if (at91_suspend_entering_slow_clock()) {
- ohci_usb_reset (ohci);
- clk_disable(fclk);
- clk_disable(iclk);
- clocked = 0;
- }
+ clk_disable(fclk);
+ clk_disable(iclk);
return 0;
}
-static int ohci_hcd_at91_drv_resume(struct platform_device *pdev)
+static int ohci_hcd_at91_drv_resume(struct platform_device *dev)
{
- if (!clocked) {
- clk_enable(iclk);
- clk_enable(fclk);
- }
+ clk_enable(iclk);
+ clk_enable(fclk);
return 0;
}
#define ohci_hcd_at91_drv_resume NULL
#endif
-MODULE_ALIAS("at91_ohci");
+MODULE_ALIAS("at91rm9200-ohci");
static struct platform_driver ohci_hcd_at91_driver = {
.probe = ohci_hcd_at91_drv_probe,
.suspend = ohci_hcd_at91_drv_suspend,
.resume = ohci_hcd_at91_drv_resume,
.driver = {
- .name = "at91_ohci",
+ .name = "at91rm9200-ohci",
.owner = THIS_MODULE,
},
};
git://git.onelab.eu / linux-2.6.git / blobdiff