diff --git a/drivers/clk/sunxi-ng/ccu-sun6i-a31.c b/drivers/clk/sunxi-ng/ccu-sun6i-a31.c
index 79596463e0d9..4a82a49cff5e 100644
--- a/drivers/clk/sunxi-ng/ccu-sun6i-a31.c
+++ b/drivers/clk/sunxi-ng/ccu-sun6i-a31.c
@@ -191,6 +191,8 @@ static struct clk_div_table axi_div_table[] = {
 static SUNXI_CCU_DIV_TABLE(axi_clk, "axi", "cpu",
 			   0x050, 0, 3, axi_div_table, 0);
 
+#define SUN6I_A31_AHB1_REG  0x054
+
 static const char * const ahb1_parents[] = { "osc32k", "osc24M",
 					     "axi", "pll-periph" };
 
@@ -1230,6 +1232,16 @@ static void __init sun6i_a31_ccu_setup(struct device_node *node)
 	val &= BIT(16);
 	writel(val, reg + SUN6I_A31_PLL_MIPI_REG);
 
+	/* Force AHB1 to PLL6 / 3 */
+	val = readl(reg + SUN6I_A31_AHB1_REG);
+	/* set PLL6 pre-div = 3 */
+	val &= ~GENMASK(7, 6);
+	val |= 0x2 << 6;
+	/* select PLL6 / pre-div */
+	val &= ~GENMASK(13, 12);
+	val |= 0x3 << 12;
+	writel(val, reg + SUN6I_A31_AHB1_REG);
+
 	sunxi_ccu_probe(node, reg, &sun6i_a31_ccu_desc);
 
 	ccu_mux_notifier_register(pll_cpu_clk.common.hw.clk,
diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c
index 838b22aa8b67..f2c9274b8bd5 100644
--- a/drivers/clk/sunxi/clk-sunxi.c
+++ b/drivers/clk/sunxi/clk-sunxi.c
@@ -373,7 +373,7 @@ static void sun4i_get_apb1_factors(struct factors_request *req)
 	else
 		calcp = 3;
 
-	calcm = (req->parent_rate >> calcp) - 1;
+	calcm = (div >> calcp) - 1;
 
 	req->rate = (req->parent_rate >> calcp) / (calcm + 1);
 	req->m = calcm;