diff --git a/drivers/mmc/mtk-sd.c b/drivers/mmc/mtk-sd.c
index 5e2ece0499..3b9c12266a 100644
--- a/drivers/mmc/mtk-sd.c
+++ b/drivers/mmc/mtk-sd.c
@@ -1639,6 +1639,8 @@ static int msdc_drv_probe(struct udevice *dev)
 	else
 		cfg->f_min = host->src_clk_freq / (4 * 4095);
 
+	cfg->f_max = host->src_clk_freq;
+
 	cfg->b_max = 1024;
 	cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34;