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 ELF_START 0x00000000
52 #define ELF_END 0x08000000
53 #define NUM_VRINGS 0x02
54 #define VRING_ALIGN 0x1000
55 #define RING_TX 0x08000000
56 #define RING_RX 0x08004000
57 #define VRING_SIZE 256
59 #define NUM_TABLE_ENTRIES 2
60 #define CARVEOUT_SRC_OFFSETS offsetof(struct remote_resource_table, elf_cout),
61 #define CARVEOUT_SRC { RSC_CARVEOUT, ELF_START, ELF_START, ELF_END, 0, 0, "ELF_COUT", },
64 struct remote_resource_table __resource resources = {
65 /* Version */
66 1,
68 /* NUmber of table entries */
69 NUM_TABLE_ENTRIES,
70 /* reserved fields */
71 {0, 0,},
73 /* Offsets of rsc entries */
74 {
75 CARVEOUT_SRC_OFFSETS
76 offsetof(struct remote_resource_table, rpmsg_vdev),
77 },
79 /* End of ELF file */
80 CARVEOUT_SRC
81 /* Virtio device entry */
82 {RSC_VDEV, VIRTIO_ID_RPMSG_, 0, RPMSG_IPU_C0_FEATURES, 0, 0, 0,
83 NUM_VRINGS, {0, 0},
84 },
86 /* Vring rsc entry - part of vdev rsc entry */
87 {
88 RING_TX, VRING_ALIGN, VRING_SIZE, 1, 0},
89 {
90 RING_RX, VRING_ALIGN, VRING_SIZE, 2, 0},
91 };
93 void *get_resource_table (int rsc_id, int *len)
94 {
95 (void) rsc_id;
96 *len = sizeof(resources);
97 return &resources;
98 }