RTOS/rtems
1
0
Fork 0
forked from Imagelibrary/rtems
Code Pull Requests Activity

bsp/tms570: Initialize and enable caches on demand

Browse Source 
Update #4982.
This commit is contained in:
Sebastian Huber
2023-12-21 15:16:49 +01:00
parent 663bedd59e
commit 5a2f64cf34
1 changed files with 25 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
bsps/arm/tms570/start/bspstarthooks.c
View File

@@ -40,9 +40,34 @@
*/
#include <bsp/start.h>
#include <libcpu/arm-cp15.h>
BSP_START_TEXT_SECTION void bsp_start_hook_1( void )
{
uint32_t ctrl;
size_t size;
ctrl = arm_cp15_get_control();
if ( ( ctrl & ARM_CP15_CTRL_I ) == 0 ) {
rtems_cache_invalidate_entire_instruction();
ctrl |= ARM_CP15_CTRL_I;
arm_cp15_set_control(ctrl);
}
if ( ( ctrl & ARM_CP15_CTRL_C ) == 0 ) {
rtems_cache_invalidate_entire_data();
ctrl |= ARM_CP15_CTRL_C;
arm_cp15_set_control(ctrl);
}
bsp_start_copy_sections_compact();
bsp_start_clear_bss();
size =(size_t) bsp_section_fast_text_size;
RTEMS_OBFUSCATE_VARIABLE( size );
if ( size != 0 ) {
rtems_cache_flush_multiple_data_lines( bsp_section_fast_text_begin, size );
}
}