1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright 2003-2011 Netlogic Microsystems (Netlogic). All rights
5 * reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are
9 * met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
16 * distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY Netlogic Microsystems ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
28 * THE POSSIBILITY OF SUCH DAMAGE.
29 *
30 * NETLOGIC_BSD */
31
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
34 #include <sys/types.h>
35 #include <sys/systm.h>
36 #include <sys/param.h>
37 #include <sys/kernel.h>
38
39 #include <mips/nlm/hal/haldefs.h>
40 #include <mips/nlm/hal/iomap.h>
41 #include <mips/nlm/hal/usb.h>
42
43 #include <mips/nlm/xlp.h>
44
45 static void
nlm_usb_intr_en(int node,int port)46 nlm_usb_intr_en(int node, int port)
47 {
48 uint32_t val;
49 uint64_t port_addr;
50
51 port_addr = nlm_get_usb_regbase(node, port);
52 val = nlm_read_usb_reg(port_addr, USB_INT_EN);
53 val = USB_CTRL_INTERRUPT_EN | USB_OHCI_INTERRUPT_EN |
54 USB_OHCI_INTERRUPT1_EN | USB_OHCI_INTERRUPT2_EN;
55 nlm_write_usb_reg(port_addr, USB_INT_EN, val);
56 }
57
58 static void
nlm_usb_hw_reset(int node,int port)59 nlm_usb_hw_reset(int node, int port)
60 {
61 uint64_t port_addr;
62 uint32_t val;
63
64 /* reset USB phy */
65 port_addr = nlm_get_usb_regbase(node, port);
66 val = nlm_read_usb_reg(port_addr, USB_PHY_0);
67 val &= ~(USB_PHY_RESET | USB_PHY_PORT_RESET_0 | USB_PHY_PORT_RESET_1);
68 nlm_write_usb_reg(port_addr, USB_PHY_0, val);
69
70 DELAY(100);
71 val = nlm_read_usb_reg(port_addr, USB_CTL_0);
72 val &= ~(USB_CONTROLLER_RESET);
73 val |= 0x4;
74 nlm_write_usb_reg(port_addr, USB_CTL_0, val);
75 }
76
77 static void
nlm_usb_init(void)78 nlm_usb_init(void)
79 {
80 /* XXX: should be checking if these are in Device mode here */
81 printf("Initialize USB Interface\n");
82 nlm_usb_hw_reset(0, 0);
83 nlm_usb_hw_reset(0, 3);
84
85 /* Enable PHY interrupts */
86 nlm_usb_intr_en(0, 0);
87 nlm_usb_intr_en(0, 3);
88 }
89
90 SYSINIT(nlm_usb_init, SI_SUB_CPU, SI_ORDER_MIDDLE,
91 nlm_usb_init, NULL);
92