diff --git a/drivers/imx/usdhc/imx_usdhc.h b/drivers/imx/usdhc/imx_usdhc.h
index 3ef2474..bb0ef01 100644
--- a/drivers/imx/usdhc/imx_usdhc.h
+++ b/drivers/imx/usdhc/imx_usdhc.h
@@ -44,6 +44,7 @@
 
 #define PSTATE			0x024U
 #define PSTATE_DAT0		BIT_32(24U)
+#define PSTATE_SDSTB		BIT_32(3U)
 #define PSTATE_DLA		BIT_32(2U)
 #define PSTATE_CDIHB		BIT_32(1U)
 #define PSTATE_CIHB		BIT_32(0U)