diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
index adbd2b57160a76b002729fda7c468c25fcddc831..da4e8ba51803865571103b3ba99dece174446b29 100644
--- a/board/sunxi/Kconfig
+++ b/board/sunxi/Kconfig
@@ -55,6 +55,38 @@ config DRAM_EMR1
default 4 if MACH_SUN5I || MACH_SUN7I
---help---
Set the dram controller emr1 value.
+
+choice
+ prompt "sunxi dram timings"
+ default DRAM_TIMINGS_VENDOR_MAGIC
+ ---help---
+ Select the timings of the DDR3 chips.
+
+config DRAM_TIMINGS_VENDOR_MAGIC
+ bool "Magic vendor timings from Android"
+ ---help---
+ The same DRAM timings as in the Allwinner boot0 bootloader.
+
+config DRAM_TIMINGS_DDR3_1066F_1333H
+ bool "JEDEC DDR3-1333H with down binning to DDR3-1066F"
+ ---help---
+ Use the timings of the standard JEDEC DDR3-1066F speed bin for
+ DRAM_CLK <= 533MHz and the timings of the DDR3-1333H speed bin
+ for DRAM_CLK > 533MHz. This covers the majority of DDR3 chips
+ used in Allwinner A10/A13/A20 devices. In the case of DDR3-1333
+ or DDR3-1600 chips, be sure to check the DRAM datasheet to confirm
+ that down binning to DDR3-1066F is supported (because DDR3-1066F
+ uses a bit faster timings than DDR3-1333H).
+
+config DRAM_TIMINGS_DDR3_800E_1066G_1333J
+ bool "JEDEC DDR3-800E / DDR3-1066G / DDR3-1333J"
+ ---help---
+ Use the timings of the slowest possible JEDEC speed bin for the
+ selected DRAM_CLK. Depending on the DRAM_CLK value, it may be
+ DDR3-800E, DDR3-1066G or DDR3-1333J.
+
+endchoice
+
endif
config SYS_CONFIG_NAME
diff --git a/board/sunxi/dram_sun4i_auto.c b/board/sunxi/dram_sun4i_auto.c
index 826bacf94ab1bc88b75f5aa5635e8725a5a0d780..ed54150ff407a5eb2ff9a4a828346ccd5feb2cf5 100644
--- a/board/sunxi/dram_sun4i_auto.c
+++ b/board/sunxi/dram_sun4i_auto.c
@@ -8,18 +8,22 @@ static struct dram_para dram_para = {
.density = 0,
.io_width = 0,
.bus_width = 0,
- .cas = 6,
.zq = CONFIG_DRAM_ZQ,
.odt_en = 0,
.size = 0,
+#ifdef CONFIG_DRAM_TIMINGS_VENDOR_MAGIC
+ .cas = 6,
.tpr0 = 0x30926692,
.tpr1 = 0x1090,
.tpr2 = 0x1a0c8,
+ .emr2 = 0,
+#else
+# include "dram_timings_sun4i.h"
+#endif
.tpr3 = 0,
.tpr4 = 0,
.tpr5 = 0,
.emr1 = CONFIG_DRAM_EMR1,
- .emr2 = 0,
.emr3 = 0,
};
diff --git a/board/sunxi/dram_sun5i_auto.c b/board/sunxi/dram_sun5i_auto.c
index e86b08e67bd9968f39fabe95963185cf6c688d8f..bd9fd4bd27ed587b062d5854a8666d1a902588a8 100644
--- a/board/sunxi/dram_sun5i_auto.c
+++ b/board/sunxi/dram_sun5i_auto.c
@@ -10,18 +10,22 @@ static struct dram_para dram_para = {
.density = 0,
.io_width = 0,
.bus_width = 0,
- .cas = 9,
.zq = CONFIG_DRAM_ZQ,
.odt_en = 0,
.size = 0,
+#ifdef CONFIG_DRAM_TIMINGS_VENDOR_MAGIC
+ .cas = 9,
.tpr0 = 0x42d899b7,
.tpr1 = 0xa090,
.tpr2 = 0x22a00,
+ .emr2 = 0x10,
+#else
+# include "dram_timings_sun4i.h"
+#endif
.tpr3 = 0,
.tpr4 = 0,
.tpr5 = 0,
.emr1 = CONFIG_DRAM_EMR1,
- .emr2 = 0x10,
.emr3 = 0,
};
diff --git a/board/sunxi/dram_timings_sun4i.h b/board/sunxi/dram_timings_sun4i.h
new file mode 100644
index 0000000000000000000000000000000000000000..29b934da639c86b1830d1e26b7a751b6b227a21a
--- /dev/null
+++ b/board/sunxi/dram_timings_sun4i.h
@@ -0,0 +1,205 @@
+/* This file is automatically generated, do not edit */
+
+#if defined(CONFIG_DRAM_TIMINGS_DDR3_1066F_1333H)
+# if CONFIG_DRAM_CLK <= 360 /* DDR3-1066F @360MHz, timings: 6-5-5-14 */
+ .cas = 6,
+ .tpr0 = 0x268e5590,
+ .tpr1 = 0xa090,
+ .tpr2 = 0x22a00,
+ .emr2 = 0x0,
+# elif CONFIG_DRAM_CLK <= 384 /* DDR3-1066F @384MHz, timings: 6-6-6-15 */
+ .cas = 6,
+ .tpr0 = 0x288f6690,
+ .tpr1 = 0xa0a0,
+ .tpr2 = 0x22a00,
+ .emr2 = 0x0,
+# elif CONFIG_DRAM_CLK <= 396 /* DDR3-1066F @396MHz, timings: 6-6-6-15 */
+ .cas = 6,
+ .tpr0 = 0x2a8f6690,
+ .tpr1 = 0xa0a0,
+ .tpr2 = 0x22a00,
+ .emr2 = 0x0,
+# elif CONFIG_DRAM_CLK <= 408 /* DDR3-1066F @408MHz, timings: 7-6-6-16 */
+ .cas = 7,
+ .tpr0 = 0x2ab06690,
+ .tpr1 = 0xa0a8,
+ .tpr2 = 0x22a00,
+ .emr2 = 0x8,
+# elif CONFIG_DRAM_CLK <= 432 /* DDR3-1066F @432MHz, timings: 7-6-6-17 */
+ .cas = 7,
+ .tpr0 = 0x2cb16690,
+ .tpr1 = 0xa0b0,
+ .tpr2 = 0x22e00,
+ .emr2 = 0x8,
+# elif CONFIG_DRAM_CLK <= 456 /* DDR3-1066F @456MHz, timings: 7-6-6-18 */
+ .cas = 7,
+ .tpr0 = 0x30b26690,
+ .tpr1 = 0xa0b8,
+ .tpr2 = 0x22e00,
+ .emr2 = 0x8,
+# elif CONFIG_DRAM_CLK <= 468 /* DDR3-1066F @468MHz, timings: 7-7-7-18 */
+ .cas = 7,
+ .tpr0 = 0x30b27790,
+ .tpr1 = 0xa0c0,
+ .tpr2 = 0x23200,
+ .emr2 = 0x8,
+# elif CONFIG_DRAM_CLK <= 480 /* DDR3-1066F @480MHz, timings: 7-7-7-18 */
+ .cas = 7,
+ .tpr0 = 0x32b27790,
+ .tpr1 = 0xa0c0,
+ .tpr2 = 0x23200,
+ .emr2 = 0x8,
+# elif CONFIG_DRAM_CLK <= 504 /* DDR3-1066F @504MHz, timings: 7-7-7-19 */
+ .cas = 7,
+ .tpr0 = 0x34d37790,
+ .tpr1 = 0xa0d0,
+ .tpr2 = 0x23600,
+ .emr2 = 0x8,
+# elif CONFIG_DRAM_CLK <= 528 /* DDR3-1066F @528MHz, timings: 7-7-7-20 */
+ .cas = 7,
+ .tpr0 = 0x36d47790,
+ .tpr1 = 0xa0d8,
+ .tpr2 = 0x23600,
+ .emr2 = 0x8,
+# elif CONFIG_DRAM_CLK <= 540 /* DDR3-1333H @540MHz, timings: 9-8-8-20 */
+ .cas = 9,
+ .tpr0 = 0x36b488b4,
+ .tpr1 = 0xa0c8,
+ .tpr2 = 0x2b600,
+ .emr2 = 0x10,
+# elif CONFIG_DRAM_CLK <= 552 /* DDR3-1333H @552MHz, timings: 9-8-8-20 */
+ .cas = 9,
+ .tpr0 = 0x38b488b4,
+ .tpr1 = 0xa0c8,
+ .tpr2 = 0x2ba00,
+ .emr2 = 0x10,
+# elif CONFIG_DRAM_CLK <= 576 /* DDR3-1333H @576MHz, timings: 9-8-8-21 */
+ .cas = 9,
+ .tpr0 = 0x3ab588b4,
+ .tpr1 = 0xa0d0,
+ .tpr2 = 0x2ba00,
+ .emr2 = 0x10,
+# elif CONFIG_DRAM_CLK <= 600 /* DDR3-1333H @600MHz, timings: 9-9-9-22 */
+ .cas = 9,
+ .tpr0 = 0x3cb699b4,
+ .tpr1 = 0xa0d8,
+ .tpr2 = 0x2be00,
+ .emr2 = 0x10,
+# elif CONFIG_DRAM_CLK <= 624 /* DDR3-1333H @624MHz, timings: 9-9-9-23 */
+ .cas = 9,
+ .tpr0 = 0x3eb799b4,
+ .tpr1 = 0xa0e8,
+ .tpr2 = 0x2be00,
+ .emr2 = 0x10,
+# elif CONFIG_DRAM_CLK <= 648 /* DDR3-1333H @648MHz, timings: 9-9-9-24 */
+ .cas = 9,
+ .tpr0 = 0x42b899b4,
+ .tpr1 = 0xa0f0,
+ .tpr2 = 0x2c200,
+ .emr2 = 0x10,
+# else
+# error CONFIG_DRAM_CLK is set too high
+# endif
+#elif defined(CONFIG_DRAM_TIMINGS_DDR3_800E_1066G_1333J)
+# if CONFIG_DRAM_CLK <= 360 /* DDR3-800E @360MHz, timings: 6-6-6-14 */
+ .cas = 6,
+ .tpr0 = 0x268e6690,
+ .tpr1 = 0xa090,
+ .tpr2 = 0x22a00,
+ .emr2 = 0x0,
+# elif CONFIG_DRAM_CLK <= 384 /* DDR3-800E @384MHz, timings: 6-6-6-15 */
+ .cas = 6,
+ .tpr0 = 0x2a8f6690,
+ .tpr1 = 0xa0a0,
+ .tpr2 = 0x22a00,
+ .emr2 = 0x0,
+# elif CONFIG_DRAM_CLK <= 396 /* DDR3-800E @396MHz, timings: 6-6-6-15 */
+ .cas = 6,
+ .tpr0 = 0x2a8f6690,
+ .tpr1 = 0xa0a0,
+ .tpr2 = 0x22a00,
+ .emr2 = 0x0,
+# elif CONFIG_DRAM_CLK <= 408 /* DDR3-1066G @408MHz, timings: 8-7-7-16 */
+ .cas = 8,
+ .tpr0 = 0x2cb07790,
+ .tpr1 = 0xa0a8,
+ .tpr2 = 0x22a00,
+ .emr2 = 0x8,
+# elif CONFIG_DRAM_CLK <= 432 /* DDR3-1066G @432MHz, timings: 8-7-7-17 */
+ .cas = 8,
+ .tpr0 = 0x2eb17790,
+ .tpr1 = 0xa0b0,
+ .tpr2 = 0x22e00,
+ .emr2 = 0x8,
+# elif CONFIG_DRAM_CLK <= 456 /* DDR3-1066G @456MHz, timings: 8-7-7-18 */
+ .cas = 8,
+ .tpr0 = 0x30b27790,
+ .tpr1 = 0xa0b8,
+ .tpr2 = 0x22e00,
+ .emr2 = 0x8,
+# elif CONFIG_DRAM_CLK <= 468 /* DDR3-1066G @468MHz, timings: 8-8-8-18 */
+ .cas = 8,
+ .tpr0 = 0x32b28890,
+ .tpr1 = 0xa0c0,
+ .tpr2 = 0x23200,
+ .emr2 = 0x8,
+# elif CONFIG_DRAM_CLK <= 480 /* DDR3-1066G @480MHz, timings: 8-8-8-18 */
+ .cas = 8,
+ .tpr0 = 0x34b28890,
+ .tpr1 = 0xa0c0,
+ .tpr2 = 0x23200,
+ .emr2 = 0x8,
+# elif CONFIG_DRAM_CLK <= 504 /* DDR3-1066G @504MHz, timings: 8-8-8-19 */
+ .cas = 8,
+ .tpr0 = 0x36d38890,
+ .tpr1 = 0xa0d0,
+ .tpr2 = 0x23600,
+ .emr2 = 0x8,
+# elif CONFIG_DRAM_CLK <= 528 /* DDR3-1066G @528MHz, timings: 8-8-8-20 */
+ .cas = 8,
+ .tpr0 = 0x38d48890,
+ .tpr1 = 0xa0d8,
+ .tpr2 = 0x23600,
+ .emr2 = 0x8,
+# elif CONFIG_DRAM_CLK <= 540 /* DDR3-1333J @540MHz, timings: 10-9-9-20 */
+ .cas = 10,
+ .tpr0 = 0x38b499b4,
+ .tpr1 = 0xa0c8,
+ .tpr2 = 0x2b600,
+ .emr2 = 0x10,
+# elif CONFIG_DRAM_CLK <= 552 /* DDR3-1333J @552MHz, timings: 10-9-9-20 */
+ .cas = 10,
+ .tpr0 = 0x3ab499b4,
+ .tpr1 = 0xa0c8,
+ .tpr2 = 0x2ba00,
+ .emr2 = 0x10,
+# elif CONFIG_DRAM_CLK <= 576 /* DDR3-1333J @576MHz, timings: 10-9-9-21 */
+ .cas = 10,
+ .tpr0 = 0x3cb599b4,
+ .tpr1 = 0xa0d0,
+ .tpr2 = 0x2ba00,
+ .emr2 = 0x10,
+# elif CONFIG_DRAM_CLK <= 600 /* DDR3-1333J @600MHz, timings: 10-9-9-22 */
+ .cas = 10,
+ .tpr0 = 0x3eb699b4,
+ .tpr1 = 0xa0d8,
+ .tpr2 = 0x2be00,
+ .emr2 = 0x10,
+# elif CONFIG_DRAM_CLK <= 624 /* DDR3-1333J @624MHz, timings: 10-10-10-23 */
+ .cas = 10,
+ .tpr0 = 0x40b7aab4,
+ .tpr1 = 0xa0e8,
+ .tpr2 = 0x2be00,
+ .emr2 = 0x10,
+# elif CONFIG_DRAM_CLK <= 648 /* DDR3-1333J @648MHz, timings: 10-10-10-24 */
+ .cas = 10,
+ .tpr0 = 0x44b8aab4,
+ .tpr1 = 0xa0f0,
+ .tpr2 = 0x2c200,
+ .emr2 = 0x10,
+# else
+# error CONFIG_DRAM_CLK is set too high
+# endif
+#else
+# error CONFIG_DRAM_TIMINGS_* is not defined
+#endif