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1004165f GR |
1 | /* |
2 | * Copyright (c) 2003-2012 Broadcom Corporation | |
3 | * All Rights Reserved | |
4 | * | |
5 | * This software is available to you under a choice of one of two | |
6 | * licenses. You may choose to be licensed under the terms of the GNU | |
7 | * General Public License (GPL) Version 2, available from the file | |
8 | * COPYING in the main directory of this source tree, or the Broadcom | |
9 | * license below: | |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or without | |
12 | * modification, are permitted provided that the following conditions | |
13 | * are met: | |
14 | * | |
15 | * 1. Redistributions of source code must retain the above copyright | |
16 | * notice, this list of conditions and the following disclaimer. | |
17 | * 2. Redistributions in binary form must reproduce the above copyright | |
18 | * notice, this list of conditions and the following disclaimer in | |
19 | * the documentation and/or other materials provided with the | |
20 | * distribution. | |
21 | * | |
22 | * THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR | |
23 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
24 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
25 | * ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE | |
26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
27 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
28 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | |
29 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
30 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE | |
31 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN | |
32 | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
33 | */ | |
34 | ||
35 | #include <linux/dma-mapping.h> | |
36 | #include <linux/kernel.h> | |
37 | #include <linux/delay.h> | |
38 | #include <linux/init.h> | |
39 | #include <linux/pci.h> | |
40 | #include <linux/platform_device.h> | |
41 | ||
42 | #include <asm/netlogic/haldefs.h> | |
43 | #include <asm/netlogic/xlp-hal/iomap.h> | |
44 | #include <asm/netlogic/xlp-hal/xlp.h> | |
45 | #include <asm/netlogic/xlp-hal/usb.h> | |
46 | ||
47 | static void nlm_usb_intr_en(int node, int port) | |
48 | { | |
49 | uint32_t val; | |
50 | uint64_t port_addr; | |
51 | ||
52 | port_addr = nlm_get_usb_regbase(node, port); | |
53 | val = nlm_read_usb_reg(port_addr, USB_INT_EN); | |
54 | val = USB_CTRL_INTERRUPT_EN | USB_OHCI_INTERRUPT_EN | | |
70342287 | 55 | USB_OHCI_INTERRUPT1_EN | USB_CTRL_INTERRUPT_EN | |
1004165f GR |
56 | USB_OHCI_INTERRUPT_EN | USB_OHCI_INTERRUPT2_EN; |
57 | nlm_write_usb_reg(port_addr, USB_INT_EN, val); | |
58 | } | |
59 | ||
60 | static void nlm_usb_hw_reset(int node, int port) | |
61 | { | |
62 | uint64_t port_addr; | |
63 | uint32_t val; | |
64 | ||
65 | /* reset USB phy */ | |
66 | port_addr = nlm_get_usb_regbase(node, port); | |
67 | val = nlm_read_usb_reg(port_addr, USB_PHY_0); | |
68 | val &= ~(USB_PHY_RESET | USB_PHY_PORT_RESET_0 | USB_PHY_PORT_RESET_1); | |
69 | nlm_write_usb_reg(port_addr, USB_PHY_0, val); | |
70 | ||
71 | mdelay(100); | |
72 | val = nlm_read_usb_reg(port_addr, USB_CTL_0); | |
73 | val &= ~(USB_CONTROLLER_RESET); | |
74 | val |= 0x4; | |
75 | nlm_write_usb_reg(port_addr, USB_CTL_0, val); | |
76 | } | |
77 | ||
78 | static int __init nlm_platform_usb_init(void) | |
79 | { | |
80 | pr_info("Initializing USB Interface\n"); | |
81 | nlm_usb_hw_reset(0, 0); | |
82 | nlm_usb_hw_reset(0, 3); | |
83 | ||
84 | /* Enable PHY interrupts */ | |
85 | nlm_usb_intr_en(0, 0); | |
86 | nlm_usb_intr_en(0, 3); | |
87 | ||
88 | return 0; | |
89 | } | |
90 | ||
91 | arch_initcall(nlm_platform_usb_init); | |
92 | ||
93 | static u64 xlp_usb_dmamask = ~(u32)0; | |
94 | ||
95 | /* Fixup the IRQ for USB devices which is exist on XLP SOC PCIE bus */ | |
96 | static void nlm_usb_fixup_final(struct pci_dev *dev) | |
97 | { | |
98 | dev->dev.dma_mask = &xlp_usb_dmamask; | |
99 | dev->dev.coherent_dma_mask = DMA_BIT_MASK(64); | |
100 | switch (dev->devfn) { | |
101 | case 0x10: | |
102 | dev->irq = PIC_EHCI_0_IRQ; | |
103 | break; | |
104 | case 0x11: | |
105 | dev->irq = PIC_OHCI_0_IRQ; | |
106 | break; | |
107 | case 0x12: | |
108 | dev->irq = PIC_OHCI_1_IRQ; | |
109 | break; | |
110 | case 0x13: | |
111 | dev->irq = PIC_EHCI_1_IRQ; | |
112 | break; | |
113 | case 0x14: | |
114 | dev->irq = PIC_OHCI_2_IRQ; | |
115 | break; | |
116 | case 0x15: | |
117 | dev->irq = PIC_OHCI_3_IRQ; | |
118 | break; | |
119 | } | |
120 | } | |
121 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_NETLOGIC, PCI_DEVICE_ID_NLM_EHCI, | |
122 | nlm_usb_fixup_final); | |
123 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_NETLOGIC, PCI_DEVICE_ID_NLM_OHCI, | |
124 | nlm_usb_fixup_final); |