diff options
Diffstat (limited to 'arch/arm/cpu')
-rw-r--r-- | arch/arm/cpu/armv7/ls102xa/soc.c | 10 |
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; } |