diff --git a/src/soc/rockchip/rk3399/clock.c b/src/soc/rockchip/rk3399/clock.c
index 6222b77..ba66230 100644
--- a/src/soc/rockchip/rk3399/clock.c
+++ b/src/soc/rockchip/rk3399/clock.c
@@ -549,6 +549,10 @@
 		dpll_cfg = (struct pll_div)
 		{.refdiv = 1, .fbdiv = 100, .postdiv1 = 3, .postdiv2 = 1};
 		break;
+	case 928*MHz:
+		dpll_cfg = (struct pll_div)
+		{.refdiv = 1, .fbdiv = 116, .postdiv1 = 3, .postdiv2 = 1};
+		break;
 	default:
 		die("Unsupported SDRAM frequency, add to clock.c!");
 	}