1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/memory/tegra/mc.c b/drivers/memory/tegra/mc.c
index a08b61a86760..1735e23dbc28 100644
--- a/drivers/memory/tegra/mc.c
+++ b/drivers/memory/tegra/mc.c
@@ -51,6 +51,9 @@
 #define MC_EMEM_ADR_CFG 0x54
 #define MC_EMEM_ADR_CFG_EMEM_NUMDEV BIT(0)
 
+#define MC_TIMING_CONTROL               0xfc
+#define MC_TIMING_UPDATE                BIT(0)
+
 static const struct of_device_id tegra_mc_of_match[] = {
 #ifdef CONFIG_ARCH_TEGRA_2x_SOC
         { .compatible = "nvidia,tegra20-mc-gart", .data = &tegra20_mc_soc },
@@ -301,6 +304,9 @@ static int tegra_mc_setup_latency_allowance(struct tegra_mc *mc)
                 writel(value, mc->regs + la->reg);
         }
 
+        /* latch new values */
+        writel(MC_TIMING_UPDATE, mc->regs + MC_TIMING_CONTROL);
+
         return 0;
 }