/*
- *
* Most of this source has been derived from the Linux USB
* project:
* (C) Copyright Linus Torvalds 1999
* Adapted for U-Boot:
* (C) Copyright 2001 Denis Peter, MPL AG Switzerland
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- *
+ * SPDX-License-Identifier: GPL-2.0+
*/
/****************************************************************************
#include <asm/4xx_pci.h>
#endif
+#ifndef CONFIG_USB_HUB_MIN_POWER_ON_DELAY
+#define CONFIG_USB_HUB_MIN_POWER_ON_DELAY 100
+#endif
+
#define USB_BUFSIZ 512
static struct usb_hub_device hub_dev[USB_MAX_HUB];
int ret;
dev = hub->pusb_dev;
- /* Enable power to the ports */
+
+ /*
+ * Enable power to the ports:
+ * Here we Power-cycle the ports: aka,
+ * turning them off and turning on again.
+ */
debug("enabling power on all ports\n");
for (i = 0; i < dev->maxchild; i++) {
- /*
- * Power-cycle the ports here: aka,
- * turning them off and turning on again.
- */
usb_clear_port_feature(dev, i + 1, USB_PORT_FEAT_POWER);
debug("port %d returns %lX\n", i + 1, dev->status);
+ }
- /* Wait at least 2*bPwrOn2PwrGood for PP to change */
- mdelay(pgood_delay);
+ /* Wait at least 2*bPwrOn2PwrGood for PP to change */
+ mdelay(pgood_delay);
+ for (i = 0; i < dev->maxchild; i++) {
ret = usb_get_port_status(dev, i + 1, portsts);
if (ret < 0) {
debug("port %d: get_port_status failed\n", i + 1);
debug("port %d: Port power change failed\n", i + 1);
return;
}
+ }
+ for (i = 0; i < dev->maxchild; i++) {
usb_set_port_feature(dev, i + 1, USB_PORT_FEAT_POWER);
debug("port %d returns %lX\n", i + 1, dev->status);
}
- /* Wait at least 100 msec for power to become stable */
- mdelay(max(pgood_delay, (unsigned)100));
+ /* Wait for power to become stable */
+ mdelay(max(pgood_delay, CONFIG_USB_HUB_MIN_POWER_ON_DELAY));
}
void usb_hub_reset(void)
static inline char *portspeed(int portstatus)
{
- if (portstatus & (1 << USB_PORT_FEAT_HIGHSPEED))
- return "480 Mb/s";
- else if (portstatus & (1 << USB_PORT_FEAT_LOWSPEED))
- return "1.5 Mb/s";
- else
- return "12 Mb/s";
+ char *speed_str;
+
+ switch (portstatus & USB_PORT_STAT_SPEED_MASK) {
+ case USB_PORT_STAT_SUPER_SPEED:
+ speed_str = "5 Gb/s";
+ break;
+ case USB_PORT_STAT_HIGH_SPEED:
+ speed_str = "480 Mb/s";
+ break;
+ case USB_PORT_STAT_LOW_SPEED:
+ speed_str = "1.5 Mb/s";
+ break;
+ default:
+ speed_str = "12 Mb/s";
+ break;
+ }
+
+ return speed_str;
}
int hub_port_reset(struct usb_device *dev, int port,
/* Allocate a new device struct for it */
usb = usb_alloc_new_device(dev->controller);
- if (portstatus & USB_PORT_STAT_HIGH_SPEED)
+ switch (portstatus & USB_PORT_STAT_SPEED_MASK) {
+ case USB_PORT_STAT_SUPER_SPEED:
+ usb->speed = USB_SPEED_SUPER;
+ break;
+ case USB_PORT_STAT_HIGH_SPEED:
usb->speed = USB_SPEED_HIGH;
- else if (portstatus & USB_PORT_STAT_LOW_SPEED)
+ break;
+ case USB_PORT_STAT_LOW_SPEED:
usb->speed = USB_SPEED_LOW;
- else
+ break;
+ default:
usb->speed = USB_SPEED_FULL;
+ break;
+ }
dev->children[port] = usb;
usb->parent = dev;
i + 1, portstatus);
usb_clear_port_feature(dev, i + 1,
USB_PORT_FEAT_C_ENABLE);
-
+ /*
+ * The following hack causes a ghost device problem
+ * to Faraday EHCI
+ */
+#ifndef CONFIG_USB_EHCI_FARADAY
/* EM interference sometimes causes bad shielded USB
* devices to be shutdown by the hub, this hack enables
* them again. Works at least with mouse driver */
"re-enabling...\n", i + 1);
usb_hub_port_connect_change(dev, i);
}
+#endif
}
if (portstatus & USB_PORT_STAT_SUSPEND) {
debug("port %d suspend change\n", i + 1);