From: Pavel Pisa <p...@cmp.felk.cvut.cz>
This fix strange behavior where some stale content has been
stored in level 2 cache before RTEMS has been start from U-boot
which has reappeared after MMU enable and shadow vector
table at start of SDRAM.
---
c/src/lib/libbsp/arm/raspberrypi/startup/bspstarthooks.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/c/src/lib/libbsp/arm/raspberrypi/startup/bspstarthooks.c
b/c/src/lib/libbsp/arm/raspberrypi/startup/bspstarthooks.c
index 0a90e7a..5b14e10 100644
--- a/c/src/lib/libbsp/arm/raspberrypi/startup/bspstarthooks.c
+++ b/c/src/lib/libbsp/arm/raspberrypi/startup/bspstarthooks.c
@@ -48,18 +48,18 @@ void BSP_START_TEXT_SECTION bsp_start_hook_0(void)
* If the data cache is on then ensure that it is clean
* before switching off to be extra carefull.
*/
- arm_cp15_drain_write_buffer();
- arm_cp15_data_cache_clean_and_invalidate();
+ rtems_cache_flush_entire_data();
+ rtems_cache_invalidate_entire_data();
}
arm_cp15_flush_prefetch_buffer();
sctlr_val &= ~(ARM_CP15_CTRL_I | ARM_CP15_CTRL_C | ARM_CP15_CTRL_M |
ARM_CP15_CTRL_A);
arm_cp15_set_control(sctlr_val);
-
- arm_cp15_tlb_invalidate();
- arm_cp15_flush_prefetch_buffer();
- arm_cp15_data_cache_invalidate();
- arm_cp15_instruction_cache_invalidate();
}
+ rtems_cache_invalidate_entire_data();
+ rtems_cache_invalidate_entire_instruction();
+ arm_cp15_branch_predictor_invalidate_all();
+ arm_cp15_tlb_invalidate();
+ arm_cp15_flush_prefetch_buffer();
/* Clear Translation Table Base Control Register */
arm_cp15_set_translation_table_base_control_register(0);
--
1.9.1
_______________________________________________
devel mailing list
devel@rtems.org
http://lists.rtems.org/mailman/listinfo/devel
