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-rw-r--r--arch/arm/cpu/armv7/ls102xa/soc.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/ls102xa/soc.c b/arch/arm/cpu/armv7/ls102xa/soc.c
index 97ba6d5..79ae883 100644
--- a/arch/arm/cpu/armv7/ls102xa/soc.c
+++ b/arch/arm/cpu/armv7/ls102xa/soc.c
@@ -76,5 +76,15 @@ int arch_soc_init(void)
SCFG_SNPCNFGCR_DBG_RD_WR |
SCFG_SNPCNFGCR_EDMA_SNP);
+ /*
+ * Memory controller require a register write before being enabled.
+ * Affects: DDR
+ * Register: EDDRTQCFG
+ * Description: Memory controller performance is not optimal with
+ * default internal target queue register values.
+ * Workaround: Write a value of 63b2_0042h to address: 157_020Ch.
+ */
+ out_be32(&scfg->eddrtqcfg, 0x63b20042);
+
return 0;
}