/*
- * Copyright (c) 2009 NVIDIA Corporation
+ * Copyright (c) 2009-2012 NVIDIA Corporation
*
* See file CREDITS for list of people who contributed to this
* project.
#include <usb.h>
#include "ehci.h"
-#include "ehci-core.h"
#include <asm/errno.h>
#include <asm/arch/usb.h>
+/*
+ * A known hardware issue where Connect Status Change bit of PORTSC register
+ * of USB1 controller will be set after Port Reset.
+ * We have to clear it in order for later device enumeration to proceed.
+ * This ehci_powerup_fixup overrides the weak function ehci_powerup_fixup
+ * in "ehci-hcd.c".
+ */
+void ehci_powerup_fixup(uint32_t *status_reg, uint32_t *reg)
+{
+ mdelay(50);
+ if (((u32) status_reg & TEGRA_USB_ADDR_MASK) != TEGRA_USB1_BASE)
+ return;
+ /* For EHCI_PS_CSC to be cleared in ehci_hcd.c */
+ if (ehci_readl(status_reg) & EHCI_PS_CSC)
+ *reg |= EHCI_PS_CSC;
+}
/*
* Create the appropriate control structures to manage
* a new EHCI host controller.
*/
-int ehci_hcd_init(void)
+int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor)
{
u32 our_hccr, our_hcor;
* Select the first port, as we don't have a way of selecting others
* yet
*/
- if (tegrausb_start_port(0, &our_hccr, &our_hcor))
+ if (tegrausb_start_port(index, &our_hccr, &our_hcor))
return -1;
- hccr = (struct ehci_hccr *)our_hccr;
- hcor = (struct ehci_hcor *)our_hcor;
+ *hccr = (struct ehci_hccr *)our_hccr;
+ *hcor = (struct ehci_hcor *)our_hcor;
return 0;
}
* Destroy the appropriate control structures corresponding
* the the EHCI host controller.
*/
-int ehci_hcd_stop(void)
+int ehci_hcd_stop(int index)
{
- tegrausb_stop_port();
- return 0;
+ return tegrausb_stop_port(index);
}