Zephyr API Documentation
4.0.0-rc3
A Scalable Open Source RTOS
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memory-attr-arm.h
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/*
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* Copyright (c) 2023 Carlo Caione <ccaione@baylibre.com>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_INCLUDE_DT_BINDINGS_MEM_ATTR_ARM_H_
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#define ZEPHYR_INCLUDE_DT_BINDINGS_MEM_ATTR_ARM_H_
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#include <
zephyr/sys/util_macro.h
>
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#include <
zephyr/dt-bindings/memory-attr/memory-attr.h
>
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/*
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* Architecture specific ARM MPU related attributes.
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*
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* This list is to seamlessly support the MPU regions configuration using DT and
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* the `zephyr,memory-attr` property.
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*
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* This is legacy and it should NOT be extended further. If new MPU region
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* types must be added, these must rely on the generic memory attributes.
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*/
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#define DT_MEM_ARM_MASK DT_MEM_ARCH_ATTR_MASK
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#define DT_MEM_ARM_GET(x) ((x) & DT_MEM_ARM_MASK)
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#define DT_MEM_ARM(x) ((x) << DT_MEM_ARCH_ATTR_SHIFT)
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#define ATTR_MPU_RAM BIT(0)
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#define ATTR_MPU_RAM_NOCACHE BIT(1)
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#define ATTR_MPU_FLASH BIT(2)
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#define ATTR_MPU_PPB BIT(3)
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#define ATTR_MPU_IO BIT(4)
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#define ATTR_MPU_EXTMEM BIT(5)
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#define DT_MEM_ARM_MPU_RAM DT_MEM_ARM(ATTR_MPU_RAM)
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#define DT_MEM_ARM_MPU_RAM_NOCACHE DT_MEM_ARM(ATTR_MPU_RAM_NOCACHE)
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#define DT_MEM_ARM_MPU_FLASH DT_MEM_ARM(ATTR_MPU_FLASH)
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#define DT_MEM_ARM_MPU_PPB DT_MEM_ARM(ATTR_MPU_PPB)
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#define DT_MEM_ARM_MPU_IO DT_MEM_ARM(ATTR_MPU_IO)
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#define DT_MEM_ARM_MPU_EXTMEM DT_MEM_ARM(ATTR_MPU_EXTMEM)
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#define DT_MEM_ARM_MPU_UNKNOWN DT_MEM_ARCH_ATTR_UNKNOWN
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#endif
/* ZEPHYR_INCLUDE_DT_BINDINGS_MEM_ATTR_ARM_H_ */
memory-attr.h
util_macro.h
Macro utilities.
zephyr
dt-bindings
memory-attr
memory-attr-arm.h
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1.12.0