fix(intel): fix bit masking issue in intel_secure_reg_update

intel_secure_reg_update function should apply mask to the value before write into register. Signed-off-by: Siew Chin Lim <elly.siew.chin.lim@intel.com> Change-Id: I84bbd06e24b8666528b53030e8359743d438eb5b
3 years ago · c9c070994c
1 changed files with 1 additions and 1 deletions
--- a/plat/intel/soc/common/socfpga_sip_svc.c
+++ b/plat/intel/soc/common/socfpga_sip_svc.c
@ -344,7 +344,7 @@ uint32_t intel_secure_reg_update(uint64_t reg_addr, uint32_t mask,
 {
 	if (!intel_secure_reg_read(reg_addr, retval)) {
 		*retval &= ~mask;
-		*retval |= val;
+		*retval |= val & mask;
 		return intel_secure_reg_write(reg_addr, *retval, retval);
 	}