959d49fbe83fe39dce34f966deecee451e3cdd83
1 /*
2 * Copyright (c) 2014, Mentor Graphics Corporation
3 * All rights reserved.
4 * Copyright (c) 2015 Xilinx, Inc. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 * 3. Neither the name of Mentor Graphics Corporation nor the names of its
15 * contributors may be used to endorse or promote products derived from this
16 * software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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 THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
31 /* This file populates resource table for BM remote
32 * for use by the Linux Master */
34 #include "openamp/open_amp.h"
35 #include "rsc_table.h"
37 /* Place resource table in special ELF section */
38 /* Redefine __section for section name with token */
39 #define __section_t(S) __attribute__((__section__(#S)))
40 #define __resource __section_t(.resource_table)
42 #define RPMSG_IPU_C0_FEATURES 1
44 /* VirtIO rpmsg device id */
45 #define VIRTIO_ID_RPMSG_ 7
47 /* Remote supports Name Service announcement */
48 #define VIRTIO_RPMSG_F_NS 0
50 /* Resource table entries */
51 #define NUM_VRINGS 0x02
52 #define VRING_ALIGN 0x1000
53 #define RING_TX 0x08000000
54 #define RING_RX 0x08004000
55 #define VRING_SIZE 256
57 #define NUM_TABLE_ENTRIES 2
60 struct remote_resource_table __resource resources = {
61 /* Version */
62 1,
64 /* NUmber of table entries */
65 NUM_TABLE_ENTRIES,
66 /* reserved fields */
67 {0, 0,},
69 /* Offsets of rsc entries */
70 {
71 offsetof(struct remote_resource_table, rproc_mem),
72 offsetof(struct remote_resource_table, rpmsg_vdev),
73 },
75 {RSC_RPROC_MEM, 0x200000, 0x200000, 0x100000, 0},
76 /* Virtio device entry */
77 {RSC_VDEV, VIRTIO_ID_RPMSG_, 0, RPMSG_IPU_C0_FEATURES, 0, 0, 0,
78 NUM_VRINGS, {0, 0},
79 },
81 /* Vring rsc entry - part of vdev rsc entry */
82 {
83 RING_TX, VRING_ALIGN, VRING_SIZE, 1, 0},
84 {
85 RING_RX, VRING_ALIGN, VRING_SIZE, 2, 0},
86 };
88 void *get_resource_table (int rsc_id, int *len)
89 {
90 (void) rsc_id;
91 *len = sizeof(resources);
92 return &resources;
93 }