3 files changed, 22 insertions, 9 deletions
diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
index 012f9a4..a6bbf6e 100644
--- a/board/sunxi/Kconfig
+++ b/board/sunxi/Kconfig
@@ -91,6 +91,13 @@ config DRAM_ZQ
 	---help---
 	Set the dram zq value.
 
+config DRAM_ODT_EN
+	bool "sunxi dram odt enable"
+	default n if !MACH_SUN8I_A23
+	default y if MACH_SUN8I_A23
+	---help---
+	Select this to enable dram odt (on die termination).
+
 if MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
 config DRAM_EMR1
 	int "sunxi dram emr1 value"
@@ -99,13 +106,6 @@ config DRAM_EMR1
 	---help---
 	Set the dram controller emr1 value.
 
-config DRAM_ODT_EN
-	int "sunxi dram odt_en value"
-	default 0
-	---help---
-	Set the dram controller odt_en parameter. This can be used to
-	enable/disable the ODT feature.
-
 config DRAM_TPR3
 	hex "sunxi dram tpr3 value"
 	default 0
@@ -166,6 +166,17 @@ endchoice
 
 endif
 
+if MACH_SUN8I_A23
+config DRAM_ODT_CORRECTION
+	int "sunxi dram odt correction value"
+	default 0
+	---help---
+	Set the dram odt correction value (range -255 - 255). In allwinner
+	fex files, this option is found in bits 8-15 of the u32 odt_en variable
+	in the [dram] section. When bit 31 of the odt_en variable is set
+	then the correction is negative. Usually the value for this is 0.
+endif
+
 config SYS_CLK_FREQ
 	default 912000000 if MACH_SUN7I
 	default 1008000000 if MACH_SUN4I || MACH_SUN5I || MACH_SUN6I || MACH_SUN8I
diff --git a/board/sunxi/dram_sun4i_auto.c b/board/sunxi/dram_sun4i_auto.c
index 09e0c9a..149bb51 100644
--- a/board/sunxi/dram_sun4i_auto.c
+++ b/board/sunxi/dram_sun4i_auto.c
@@ -1,5 +1,6 @@
 #include <common.h>
 #include <asm/arch/dram.h>
+#include <linux/kconfig.h>
 
 static struct dram_para dram_para = {
 	.clock = CONFIG_DRAM_CLK,
@@ -9,7 +10,7 @@ static struct dram_para dram_para = {
 	.io_width = 0,
 	.bus_width = 0,
 	.zq = CONFIG_DRAM_ZQ,
-	.odt_en = CONFIG_DRAM_ODT_EN,
+	.odt_en = IS_ENABLED(CONFIG_DRAM_ODT_EN),
 	.size = 0,
 #ifdef CONFIG_DRAM_TIMINGS_VENDOR_MAGIC
 	.cas = 6,
diff --git a/board/sunxi/dram_sun5i_auto.c b/board/sunxi/dram_sun5i_auto.c
index 660b18e..596a206 100644
--- a/board/sunxi/dram_sun5i_auto.c
+++ b/board/sunxi/dram_sun5i_auto.c
@@ -2,6 +2,7 @@
 
 #include <common.h>
 #include <asm/arch/dram.h>
+#include <linux/kconfig.h>
 
 static struct dram_para dram_para = {
 	.clock = CONFIG_DRAM_CLK,
@@ -12,7 +13,7 @@ static struct dram_para dram_para = {
 	.io_width = 0,
 	.bus_width = 0,
 	.zq = CONFIG_DRAM_ZQ,
-	.odt_en = CONFIG_DRAM_ODT_EN,
+	.odt_en = IS_ENABLED(CONFIG_DRAM_ODT_EN),
 	.size = 0,
 #ifdef CONFIG_DRAM_TIMINGS_VENDOR_MAGIC
 	.cas = 9,