USB: Add config option to call ehci_hcd_init() again after EHCI reset

This patch adds the config option CONFIG_EHCI_HCD_INIT_AFTER_RESET
to call ehci_hcd_init() again after ehci_reset() is executed. This
is needed for the upcoming VCT EHCI support which needs to re-init
the hcd part again after the EHCI CMD_RESET is executed.

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Remy Bohmer <linux@bohmer.net>

drivers/usb/usb_ehci_core.c

@@ -691,6 +691,11 @@ int usb_lowlevel_init(void)
 	if (ehci_reset() != 0)
 		return -1;
 
+#if defined(CONFIG_EHCI_HCD_INIT_AFTER_RESET)
+	if (ehci_hcd_init() != 0)
+		return -1;
+#endif
+
 	/* Set head of reclaim list */
 	memset(&qh_list, 0, sizeof(qh_list));
 	qh_list.qh_link = cpu_to_hc32((uint32_t)&qh_list | QH_LINK_TYPE_QH);