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 #define __section_t(S) __attribute__((__section__(#S)))
39 #define __resource __section_t(.resource_table)
41 #define RPMSG_IPU_C0_FEATURES 1
43 /* VirtIO rpmsg device id */
44 #define VIRTIO_ID_RPMSG_ 7
46 /* Remote supports Name Service announcement */
47 #define VIRTIO_RPMSG_F_NS 0
49 #define NUM_VRINGS 0x02
50 #define VRING_ALIGN 0x1000
51 #define RING_TX 0x3ED40000
52 #define RING_RX 0x3ED44000
53 #define VRING_SIZE 256
55 #define NUM_TABLE_ENTRIES 3
57 struct remote_resource_table __resource resources = {
58 /* Version */
59 1,
61 /* NUmber of table entries */
62 NUM_TABLE_ENTRIES,
63 /* reserved fields */
64 {0, 0,},
66 /* Offsets of rsc entries */
67 {
68 offsetof(struct remote_resource_table, rproc_mem),
69 offsetof(struct remote_resource_table, fw_chksum),
70 offsetof(struct remote_resource_table, rpmsg_vdev),
71 },
73 {RSC_RPROC_MEM, 0x3ed40000, 0x3ed40000, 0x100000, 0},
75 /* firmware checksum */
76 {RSC_FW_CHKSUM, "sha256", {0}},
78 /* Virtio device entry */
79 {
80 RSC_VDEV, VIRTIO_ID_RPMSG_, 0, RPMSG_IPU_C0_FEATURES, 0, 0, 0,
81 NUM_VRINGS, {0, 0},
82 },
84 /* Vring rsc entry - part of vdev rsc entry */
85 {RING_TX, VRING_ALIGN, VRING_SIZE, 1, 0},
86 {RING_RX, VRING_ALIGN, VRING_SIZE, 2, 0},
87 };
89 void *get_resource_table (int rsc_id, int *len)
90 {
91 (void) rsc_id;
92 *len = sizeof(resources);
93 return &resources;
94 }