diff options
| author | York Sun <yorksun@freescale.com> | 2015-01-06 13:18:42 -0800 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2015-02-24 13:08:46 -0800 |
| commit | dcd468b8f43c5077c42c75b15cf3204e6b6be46c (patch) | |
| tree | 2be7011207c86f70368e7372302366b2bb6e2770 /arch/arm/lib | |
| parent | 60385d94e56513b50b87724fb9a3878ee5086da9 (diff) | |
armv8/fsl-lsch3: Convert flushing L3 to assembly to avoid using stack
Flushing L3 cache in CCN-504 requries d-cache to be disabled. Using
assembly function to guarantee stack is not used before flushing is
completed. Timeout is needed for simualtor on which CCN-504 is not
implemented. Return value can be checked for timeout situation.
Change bootm.c to disable dcache instead of simply flushing, required
by flushing L3.
Signed-off-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'arch/arm/lib')
| -rw-r--r-- | arch/arm/lib/bootm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c index 0c1298a31e..2d6b676154 100644 --- a/arch/arm/lib/bootm.c +++ b/arch/arm/lib/bootm.c @@ -191,7 +191,7 @@ __weak void setup_board_tags(struct tag **in_params) {} static void do_nonsec_virt_switch(void) { smp_kick_all_cpus(); - flush_dcache_all(); /* flush cache before swtiching to EL2 */ + dcache_disable(); /* flush cache before swtiching to EL2 */ armv8_switch_to_el2(); #ifdef CONFIG_ARMV8_SWITCH_TO_EL1 armv8_switch_to_el1(); |