forked from Imagelibrary/rtems
85 lines
2.6 KiB
C
85 lines
2.6 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/**
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* @file
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*
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* @ingroup RTEMSBSPsARMZynq
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*
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* @brief This source file contains the implementation of
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* zynq_setup_mmu_and_cache().
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*/
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/*
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* Copyright (C) 2013 embedded brains GmbH & Co. KG
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#define ARM_CP15_TEXT_SECTION BSP_START_TEXT_SECTION
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#include <bsp.h>
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#include <bsp/start.h>
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#include <bsp/arm-cp15-start.h>
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#include <bsp/arm-a9mpcore-start.h>
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BSP_START_DATA_SECTION static const arm_cp15_start_section_config
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zynq_mmu_config_table[] = {
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ARMV7_CP15_START_DEFAULT_SECTIONS,
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#if defined(RTEMS_SMP)
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{
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.begin = 0xffff0000U,
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.end = 0xffffffffU,
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.flags = ARMV7_MMU_DEVICE
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},
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#endif
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{
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.begin = 0xe0000000U,
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.end = 0xe0200000U,
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.flags = ARMV7_MMU_DEVICE
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}, {
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.begin = 0xf8000000U,
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.end = 0xf9000000U,
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.flags = ARMV7_MMU_DEVICE
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}
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};
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/*
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* Make weak and let the user override.
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*/
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BSP_START_TEXT_SECTION void zynq_setup_mmu_and_cache(void) __attribute__ ((weak));
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BSP_START_TEXT_SECTION void zynq_setup_mmu_and_cache(void)
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{
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uint32_t ctrl = arm_cp15_start_setup_mmu_and_cache(
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ARM_CP15_CTRL_A,
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ARM_CP15_CTRL_AFE | ARM_CP15_CTRL_Z
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);
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arm_cp15_start_setup_translation_table_and_enable_mmu_and_cache(
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ctrl,
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(uint32_t *) bsp_translation_table_base,
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ARM_MMU_DEFAULT_CLIENT_DOMAIN,
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&zynq_mmu_config_table[0],
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RTEMS_ARRAY_SIZE(zynq_mmu_config_table)
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);
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}
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