diff --git a/arch/arm/include/asm/arch-rockchip/cru_rk322x.h b/arch/arm/include/asm/arch-rockchip/cru_rk322x.h
index a7999ca5af..c93609d5ce 100644
--- a/arch/arm/include/asm/arch-rockchip/cru_rk322x.h
+++ b/arch/arm/include/asm/arch-rockchip/cru_rk322x.h
@@ -11,11 +11,11 @@
 #define MHz		1000000
 #define OSC_HZ		(24 * MHz)
 
-#define APLL_HZ		(600 * MHz)
+#define APLL_HZ		(816 * MHz)
 #define GPLL_HZ		(594 * MHz)
 
-#define CORE_PERI_HZ	150000000
-#define CORE_ACLK_HZ	300000000
+#define CORE_PERI_HZ	204000000
+#define CORE_ACLK_HZ	408000000
 
 #define BUS_ACLK_HZ	148500000
 #define BUS_HCLK_HZ	148500000
diff --git a/drivers/mmc/rockchip_dw_mmc.c b/drivers/mmc/rockchip_dw_mmc.c
index 250e6c8833..20c083db63 100644
--- a/drivers/mmc/rockchip_dw_mmc.c
+++ b/drivers/mmc/rockchip_dw_mmc.c
@@ -277,6 +277,7 @@ static int rockchip_dwmmc_probe(struct udevice *dev)
 	}
 #endif
 	dwmci_setup_cfg(&plat->cfg, host, priv->minmax[1], priv->minmax[0]);
+	plat->cfg.host_caps |= MMC_MODE_DDR_52MHz;
 	host->mmc = &plat->mmc;
 	host->mmc->priv = &priv->host;
 	host->mmc->dev = dev;