2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2019 Michal Meloun <mmel@FreeBSD.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #include "pci_dw_if.h"
37 /* DesignWare CIe configuration registers */
38 #define DW_PORT_LINK_CTRL 0x710
39 #define PORT_LINK_CAPABLE(n) (((n) & 0x3F) << 16)
40 #define PORT_LINK_CAPABLE_1 0x01
41 #define PORT_LINK_CAPABLE_2 0x03
42 #define PORT_LINK_CAPABLE_4 0x07
43 #define PORT_LINK_CAPABLE_8 0x0F
44 #define PORT_LINK_CAPABLE_16 0x1F
45 #define PORT_LINK_CAPABLE_32 0x3F
47 #define DW_GEN2_CTRL 0x80C
48 #define DIRECT_SPEED_CHANGE (1 << 17)
49 #define GEN2_CTRL_NUM_OF_LANES(n) (((n) & 0x3F) << 8)
50 #define GEN2_CTRL_NUM_OF_LANES_1 0x01
51 #define GEN2_CTRL_NUM_OF_LANES_2 0x03
52 #define GEN2_CTRL_NUM_OF_LANES_4 0x07
53 #define GEN2_CTRL_NUM_OF_LANES_8 0x0F
54 #define GEN2_CTRL_NUM_OF_LANES_16 0x1F
55 #define GEN2_CTRL_NUM_OF_LANES_32 0x3F
57 #define DW_MSI_ADDR_LO 0x820
58 #define DW_MSI_ADDR_HI 0x824
59 #define DW_MSI_INTR0_ENABLE 0x828
60 #define DW_MSI_INTR0_MASK 0x82C
61 #define DW_MSI_INTR0_STATUS 0x830
63 #define DW_MISC_CONTROL_1 0x8BC
64 #define DBI_RO_WR_EN (1 << 0)
66 #define DW_IATU_VIEWPORT 0x900
67 #define IATU_REGION_INBOUND (1U << 31)
68 #define IATU_REGION_INDEX(x) ((x) & 0x7)
69 #define DW_IATU_CTRL1 0x904
70 #define IATU_CTRL1_TYPE(x) ((x) & 0x1F)
71 #define IATU_CTRL1_TYPE_MEM 0x0
72 #define IATU_CTRL1_TYPE_IO 0x2
73 #define IATU_CTRL1_TYPE_CFG0 0x4
74 #define IATU_CTRL1_TYPE_CFG1 0x5
75 #define DW_IATU_CTRL2 0x908
76 #define IATU_CTRL2_REGION_EN (1U << 31)
77 #define DW_IATU_LWR_BASE_ADDR 0x90C
78 #define DW_IATU_UPPER_BASE_ADDR 0x910
79 #define DW_IATU_LIMIT_ADDR 0x914
80 #define DW_IATU_LWR_TARGET_ADDR 0x918
81 #define DW_IATU_UPPER_TARGET_ADDR 0x91C
84 struct ofw_pci_softc ofw_pci; /* Must be first */
86 /* Filled by attachement stub */
87 struct resource *dbi_res;
89 /* pci_dw variables */
93 struct resource *cfg_res;
95 struct ofw_pci_range mem_range;
96 struct ofw_pci_range pref_mem_range;
97 struct ofw_pci_range io_range;
104 bus_addr_t cfg_pa; /* PA of config memoty */
105 bus_size_t cfg_size; /* size of config region */
113 DECLARE_CLASS(pci_dw_driver);
116 pci_dw_dbi_wr4(device_t dev, u_int reg, uint32_t val)
118 PCI_DW_DBI_WRITE(dev, reg, val, 4);
122 pci_dw_dbi_wr2(device_t dev, u_int reg, uint16_t val)
124 PCI_DW_DBI_WRITE(dev, reg, val, 2);
128 pci_dw_dbi_wr1(device_t dev, u_int reg, uint8_t val)
130 PCI_DW_DBI_WRITE(dev, reg, val, 1);
133 static inline uint32_t
134 pci_dw_dbi_rd4(device_t dev, u_int reg)
136 return (PCI_DW_DBI_READ(dev, reg, 4));
139 static inline uint16_t
140 pci_dw_dbi_rd2(device_t dev, u_int reg)
142 return ((uint16_t)PCI_DW_DBI_READ(dev, reg, 2));
145 static inline uint8_t
146 pci_dw_dbi_rd1(device_t dev, u_int reg)
148 return ((uint8_t)PCI_DW_DBI_READ(dev, reg, 1));
151 int pci_dw_init(device_t);
153 #endif /* __PCI_HOST_GENERIC_H_ */