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0836a0f)
When the SCTLR has C set but M unset (i.e. Caching on, but MMU off) the cache
if effectively off. So only flush the cache if MMU is on, otherwise stale
entries might be committed to memory.
Change-Id: Iaff8b6f25b7a41ba838b91d45684c98f99fc0b27
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-on: http://openocd.zylin.com/2429
Tested-by: jenkins
Reviewed-by: Christopher Head <chead@zaber.com>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-by: Vladimir Svoboda <ze.vlad@gmail.com>
cortex_a->cp15_control_reg_curr);
}
} else {
cortex_a->cp15_control_reg_curr);
}
} else {
- if (cortex_a->cp15_control_reg_curr & 0x4U) {
- /* data cache is active */
- cortex_a->cp15_control_reg_curr &= ~0x4U;
- /* flush data cache armv7 function to be called */
- if (armv7a->armv7a_mmu.armv7a_cache.flush_all_data_cache)
- armv7a->armv7a_mmu.armv7a_cache.flush_all_data_cache(target);
- }
if ((cortex_a->cp15_control_reg_curr & 0x1U)) {
if ((cortex_a->cp15_control_reg_curr & 0x1U)) {
+ if (cortex_a->cp15_control_reg_curr & 0x4U) {
+ /* data cache is active */
+ cortex_a->cp15_control_reg_curr &= ~0x4U;
+ /* flush data cache armv7 function to be called */
+ if (armv7a->armv7a_mmu.armv7a_cache.flush_all_data_cache)
+ armv7a->armv7a_mmu.armv7a_cache.flush_all_data_cache(target);
+ }
cortex_a->cp15_control_reg_curr &= ~0x1U;
retval = armv7a->arm.mcr(target, 15,
0, 0, /* op1, op2 */
cortex_a->cp15_control_reg_curr &= ~0x1U;
retval = armv7a->arm.mcr(target, 15,
0, 0, /* op1, op2 */
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