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/*
* Copyright (c) 2013 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
* 82178 Puchheim
* Germany
* <info@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#include <bsp.h>
#include <bsp/start.h>
#include <bsp/arm-cp15-start.h>
#include <bsp/linker-symbols.h>
BSP_START_TEXT_SECTION void bsp_start_hook_0(void)
{
/* Do nothing */
}
BSP_START_DATA_SECTION static const arm_cp15_start_section_config
zynq_mmu_config_table[] = {
{
.begin = (uint32_t) bsp_section_fast_text_begin,
.end = (uint32_t) bsp_section_fast_text_end,
.flags = BSP_ARM_MMU_CODE
}, {
.begin = (uint32_t) bsp_section_fast_data_begin,
.end = (uint32_t) bsp_section_fast_data_end,
.flags = BSP_ARM_MMU_READ_WRITE_DATA
}, {
.begin = (uint32_t) bsp_section_start_begin,
.end = (uint32_t) bsp_section_start_end,
.flags = BSP_ARM_MMU_CODE
}, {
.begin = (uint32_t) bsp_section_vector_begin,
.end = (uint32_t) bsp_section_vector_end,
.flags = BSP_ARM_MMU_READ_WRITE_CACHED
}, {
.begin = (uint32_t) bsp_section_text_begin,
.end = (uint32_t) bsp_section_text_end,
.flags = BSP_ARM_MMU_CODE
}, {
.begin = (uint32_t) bsp_section_rodata_begin,
.end = (uint32_t) bsp_section_rodata_end,
.flags = BSP_ARM_MMU_READ_ONLY_DATA
}, {
.begin = (uint32_t) bsp_section_data_begin,
.end = (uint32_t) bsp_section_data_end,
.flags = BSP_ARM_MMU_READ_WRITE_DATA
}, {
.begin = (uint32_t) bsp_section_bss_begin,
.end = (uint32_t) bsp_section_bss_end,
.flags = BSP_ARM_MMU_READ_WRITE_DATA
}, {
.begin = (uint32_t) bsp_section_work_begin,
.end = (uint32_t) bsp_section_work_end,
.flags = BSP_ARM_MMU_READ_WRITE_DATA
}, {
.begin = (uint32_t) bsp_section_stack_begin,
.end = (uint32_t) bsp_section_stack_end,
.flags = BSP_ARM_MMU_READ_WRITE_DATA
}, {
.begin = 0xe0000000U,
.end = 0xe0200000U,
.flags = BSP_ARM_MMU_READ_WRITE
}, {
.begin = 0xf8000000U,
.end = 0xf9000000U,
.flags = BSP_ARM_MMU_READ_WRITE
}
};
BSP_START_TEXT_SECTION static void setup_mmu_and_cache(void)
{
uint32_t ctrl = arm_cp15_start_setup_mmu_and_cache(
0,
ARM_CP15_CTRL_AFE | ARM_CP15_CTRL_Z
);
arm_cp15_start_setup_translation_table_and_enable_mmu(
ctrl,
(uint32_t *) bsp_translation_table_base,
BSP_ARM_MMU_CLIENT_DOMAIN,
&zynq_mmu_config_table[0],
RTEMS_ARRAY_SIZE(zynq_mmu_config_table)
);
}
BSP_START_TEXT_SECTION void bsp_start_hook_1(void)
{
bsp_start_copy_sections();
setup_mmu_and_cache();
bsp_start_clear_bss();
}
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