From: hecanyang <hcy@ubuntu-fs.(none)>
Date: Thu, 3 May 2012 03:35:26 +0000 (+0800)
Subject:   add a condition before rank_to_row15_en,because LPDDR2 used rank1, to resolve LPDDR... 
X-Git-Tag: firefly_0821_release~9264
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=df1329453f773d265546bce4655019a2227fd0e8;p=firefly-linux-kernel-4.4.55.git

  add a condition before rank_to_row15_en,because LPDDR2 used rank1, to resolve LPDDR2 power-up failed
---

diff --git a/arch/arm/mach-rk30/ddr.c b/arch/arm/mach-rk30/ddr.c
index 9945246f3958..de456ffedcbd 100755
--- a/arch/arm/mach-rk30/ddr.c
+++ b/arch/arm/mach-rk30/ddr.c
@@ -1285,7 +1285,10 @@ static __sramfunc void ddr_adjust_config(uint32_t dram_type)
     move_to_Config_state();
 
     //extend capability for debug
-    pGRF_Reg->GRF_SOC_CON[2] = rank_to_row15_en;
+    if(pGRF_Reg->GRF_SOC_CON[2] & (0x1<<1))
+    {
+        pGRF_Reg->GRF_SOC_CON[2] = rank_to_row15_en;
+    }
 
     //set data training address
     pPHY_Reg->DTAR = value;