diff options
Diffstat (limited to 'tftf/framework/aarch64/entrypoint.S')
-rw-r--r-- | tftf/framework/aarch64/entrypoint.S | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/tftf/framework/aarch64/entrypoint.S b/tftf/framework/aarch64/entrypoint.S index 0a4afe0e0..81fd207b4 100644 --- a/tftf/framework/aarch64/entrypoint.S +++ b/tftf/framework/aarch64/entrypoint.S @@ -20,6 +20,18 @@ func tftf_entrypoint bl arch_init /* -------------------------------------------------------------------- + * Invalidate the RW memory used by TFTF image. + * This is done to safeguard against possible corruption of this + * memory by dirty cache lines in a system cache as a result of use + * by an earlier boot loader stage. + * -------------------------------------------------------------------- + */ + adr x0, __DATA_START__ + adr x1, __DATA_END__ + sub x1, x1, x0 + bl inv_dcache_range + + /* -------------------------------------------------------------------- * This code is expected to be executed only by the primary CPU. * Save the mpid for the first core that executes and if a secondary * CPU has lost its way make it spin forever. |