32 lines
687 B
C
32 lines
687 B
C
/*
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* Copyright (c) 2021-2022 Amlogic, Inc. All rights reserved.
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*
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* SPDX-License-Identifier: MIT
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*/
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#ifndef RISCV_PMA_H
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#define RISCV_PMA_H
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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/*
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* Attr setting, N320 HW default setting is cacheable
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* Priority: NON Cache > Cache > Device
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*/
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#define PMA_ENABLE (1 << 0)
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#define PMA_DEVICE (1 << 1)
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#define PMA_NON_CACHE (1 << 2)
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/*
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* start_address, alignment is 4K
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* mask, mask = ~(size - 1)
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* atrr, default is cacheable, NON_CACHE: PMA_ENABLE | PMA_NON_CACHE
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*/
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void set_region_mem_attr(int idx, uint32_t start_addr, uint32_t mask, uint8_t attr);
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void disable_region_attr(int idx);
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#endif
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