diff --git a/configs/j721s2_evm_r5_defconfig b/configs/j721s2_evm_r5_defconfig
index 996efd4..4147b4e 100644
--- a/configs/j721s2_evm_r5_defconfig
+++ b/configs/j721s2_evm_r5_defconfig
@@ -138,6 +138,8 @@
 CONFIG_SPI=y
 CONFIG_DM_SPI=y
 CONFIG_CADENCE_QSPI=y
+CONFIG_HAS_CQSPI_REF_CLK=y
+CONFIG_CQSPI_REF_CLK=133333333
 CONFIG_SYSRESET=y
 CONFIG_SPL_SYSRESET=y
 CONFIG_SYSRESET_TI_SCI=y