freebsd-skq/sys/mips/nlm/usb_init.c
pfg e75d1be6b3 sys/mips: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 15:07:26 +00:00

94 lines
2.9 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright 2003-2011 Netlogic Microsystems (Netlogic). All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY Netlogic Microsystems ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*
* NETLOGIC_BSD */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/param.h>
#include <sys/kernel.h>
#include <mips/nlm/hal/haldefs.h>
#include <mips/nlm/hal/iomap.h>
#include <mips/nlm/hal/usb.h>
#include <mips/nlm/xlp.h>
static void
nlm_usb_intr_en(int node, int port)
{
uint32_t val;
uint64_t port_addr;
port_addr = nlm_get_usb_regbase(node, port);
val = nlm_read_usb_reg(port_addr, USB_INT_EN);
val = USB_CTRL_INTERRUPT_EN | USB_OHCI_INTERRUPT_EN |
USB_OHCI_INTERRUPT1_EN | USB_CTRL_INTERRUPT_EN |
USB_OHCI_INTERRUPT_EN | USB_OHCI_INTERRUPT2_EN;
nlm_write_usb_reg(port_addr, USB_INT_EN, val);
}
static void
nlm_usb_hw_reset(int node, int port)
{
uint64_t port_addr;
uint32_t val;
/* reset USB phy */
port_addr = nlm_get_usb_regbase(node, port);
val = nlm_read_usb_reg(port_addr, USB_PHY_0);
val &= ~(USB_PHY_RESET | USB_PHY_PORT_RESET_0 | USB_PHY_PORT_RESET_1);
nlm_write_usb_reg(port_addr, USB_PHY_0, val);
DELAY(100);
val = nlm_read_usb_reg(port_addr, USB_CTL_0);
val &= ~(USB_CONTROLLER_RESET);
val |= 0x4;
nlm_write_usb_reg(port_addr, USB_CTL_0, val);
}
static void
nlm_usb_init(void)
{
/* XXX: should be checking if these are in Device mode here */
printf("Initialize USB Interface\n");
nlm_usb_hw_reset(0, 0);
nlm_usb_hw_reset(0, 3);
/* Enable PHY interrupts */
nlm_usb_intr_en(0, 0);
nlm_usb_intr_en(0, 3);
}
SYSINIT(nlm_usb_init, SI_SUB_CPU, SI_ORDER_MIDDLE,
nlm_usb_init, NULL);