From: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Date: Tue, 19 Jul 2016 10:24:33 +0000 (+0530)
Subject: armv8: ls1012a: Update Refresh cycle for DDR
X-Git-Url: http://git.dujemihanovic.xyz/html/static/git-favicon.png?a=commitdiff_plain;h=37eac3f4609c4a6b7c8c3a2f4046fbc5deb07299;p=u-boot.git

armv8: ls1012a: Update Refresh cycle for DDR

Refresh cycle value must be selected based on the frequency
of DDR. tREFI = 7.8 us as per JEDEC. The value for MDREF[REF_CNT]
should be based on round up (tREFI/tCK) formula. For 500MHz, mdref
value should be 0x0f3c8000.

Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
---

diff --git a/include/fsl_mmdc.h b/include/fsl_mmdc.h
index 833696b5e8..a939d89d6b 100644
--- a/include/fsl_mmdc.h
+++ b/include/fsl_mmdc.h
@@ -43,7 +43,7 @@
 
 #define CONFIG_SYS_MMDC_CORE_PWR_SAV_CTRL_STAT	0x00001067
 
-#define CONFIG_SYS_MMDC_CORE_REFRESH_CTL	0x103e8000
+#define CONFIG_SYS_MMDC_CORE_REFRESH_CTL	0x0f3c8000
 
 #define START_REFRESH				0x00000001