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https://github.com/riscv-software-src/opensbi.git
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f09f16430a
This patch refines the Andes PMA related code. The main change is refactor andes_pma_[read|write]_cfg() and andes_pma_[read|write]_addr() into new functions andes_pma_[read|write]_num(). Also, fix some coding style problems. Signed-off-by: Ben Zong-You Xie <ben717@andestech.com> Reviewed-by: Anup Patel <anup@brainfault.org>
51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2023 Renesas Electronics Corp.
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*/
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#ifndef _ANDES_PMA_H_
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#define _ANDES_PMA_H_
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#include <sbi/sbi_types.h>
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#define ANDES_MAX_PMA_REGIONS 16
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#define ANDES_PMA_GRANULARITY (1 << 12)
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/* Naturally aligned power of 2 region */
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#define ANDES_PMACFG_ETYP_NAPOT 3
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/* Memory, Non-cacheable, Bufferable */
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#define ANDES_PMACFG_MTYP_MEM_NON_CACHE_BUF (3 << 2)
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/**
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* struct andes_pma_region - Describes PMA regions
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*
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* @pa: Address to be configured in the PMA
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* @size: Size of the region
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* @flags: Flags to be set for the PMA region
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* @dt_populate: Boolean flag indicating if the DT entry should be
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* populated for the given PMA region
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* @shared_dma: Boolean flag if set "shared-dma-pool" property will
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* be set in the DT node
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* @no_map: Boolean flag if set "no-map" property will be set in the
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* DT node
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* @dma_default: Boolean flag if set "linux,dma-default" property will
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* be set in the DT node. Note Linux expects single node
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* with this property set.
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*/
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struct andes_pma_region {
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unsigned long pa;
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unsigned long size;
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u8 flags:7;
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bool dt_populate;
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bool shared_dma;
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bool no_map;
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bool dma_default;
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};
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int andes_pma_setup_regions(const struct andes_pma_region *pma_regions,
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unsigned int pma_regions_count);
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#endif /* _ANDES_PMA_H_ */
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