73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
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/*
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* Copyright (c) 2014, Mentor Graphics Corporation
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* All rights reserved.
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* Copyright (c) 2015 Xilinx, Inc. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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/* This file populates resource table for BM remote
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* for use by the Linux Master */
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#include <openamp/open_amp.h>
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#include "rsc_table.h"
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#include "platform_info.h"
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/* Place resource table in special ELF section */
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/* Redefine __section for section name with token */
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#define __section_t(S) __attribute__((__section__(#S)))
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#define __resource __section_t(.resource_table)
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#define RPMSG_IPU_C0_FEATURES 1
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/* VirtIO rpmsg device id */
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#define VIRTIO_ID_RPMSG_ 7
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/* Remote supports Name Service announcement */
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#define VIRTIO_RPMSG_F_NS 0
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/* Resource table entries */
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#define NUM_VRINGS 0x02
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#define VRING_ALIGN 0x1000
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#define RING_TX 0x08000000
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#define RING_RX 0x08004000
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#define VRING_SIZE 256
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#define NUM_TABLE_ENTRIES 2
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struct remote_resource_table __resource resources = {
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/* Version */
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1,
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/* NUmber of table entries */
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NUM_TABLE_ENTRIES,
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/* reserved fields */
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{0, 0,},
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/* Offsets of rsc entries */
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{
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offsetof(struct remote_resource_table, rproc_mem),
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offsetof(struct remote_resource_table, rpmsg_vdev),
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},
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{RSC_RPROC_MEM, SHARED_MEM_PA, SHARED_MEM_PA, SHARED_MEM_SIZE, 0},
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/* Virtio device entry */
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{
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RSC_VDEV, VIRTIO_ID_RPMSG_, 0, RPMSG_IPU_C0_FEATURES, 0, 0, 0,
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NUM_VRINGS, {0, 0},
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},
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/* Vring rsc entry - part of vdev rsc entry */
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{RING_TX, VRING_ALIGN, VRING_SIZE, 1, 0},
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{RING_RX, VRING_ALIGN, VRING_SIZE, 2, 0},
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};
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void *get_resource_table (int rsc_id, int *len)
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{
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(void) rsc_id;
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*len = sizeof(resources);
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return &resources;
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}
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