PAZ00 board has two variants of DDR2 SDRAM devices for External Memory:
one is Hynix HY5PS1G831CLFP-Y5 and the other is Micron MT47H128M8CF-25:H.
The Micron variant doesn't have official timings in the wild, hence only
timings for the Hynix are added. The memory frequency-scaling was tested
using the Tegra20 devfreq driver.
Tested-by: Marc Dietrich <marvin24@xxxxxx>
Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>
---
arch/arm/boot/dts/tegra20-paz00.dts | 46 +++++++++++++++++++++++++++++
1 file changed, 46 insertions(+)
diff --git a/arch/arm/boot/dts/tegra20-paz00.dts b/arch/arm/boot/dts/tegra20-paz00.dts
index 85fce5bc72d6..be0ab9b84b9a 100644
--- a/arch/arm/boot/dts/tegra20-paz00.dts
+++ b/arch/arm/boot/dts/tegra20-paz00.dts
@@ -311,6 +311,52 @@ nvec@7000c500 {
reset-names = "i2c";
};
+ memory-controller@7000f400 {
+ nvidia,use-ram-code;
+
+ emc-tables@hynix {
+ nvidia,ram-code = <0x0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ emc-table@166500 {
+ reg = <166500>;
+ compatible = "nvidia,tegra20-emc-table";
+ clock-frequency = <166500>;
+ nvidia,emc-registers = <0x0000000a 0x00000016
+ 0x00000008 0x00000003 0x00000004 0x00000004
+ 0x00000002 0x0000000c 0x00000003 0x00000003
+ 0x00000002 0x00000001 0x00000004 0x00000005
+ 0x00000004 0x00000009 0x0000000d 0x000004df
+ 0x00000000 0x00000003 0x00000003 0x00000003
+ 0x00000003 0x00000001 0x0000000a 0x000000c8
+ 0x00000003 0x00000006 0x00000004 0x00000008
+ 0x00000002 0x00000000 0x00000000 0x00000002
+ 0x00000000 0x00000000 0x00000083 0xe03b0323
+ 0x007fe010 0x00001414 0x00000000 0x00000000
+ 0x00000000 0x00000000 0x00000000 0x00000000>;
+ };
+
+ emc-table@333000 {
+ reg = <333000>;
+ compatible = "nvidia,tegra20-emc-table";
+ clock-frequency = <333000>;
+ nvidia,emc-registers = <0x00000018 0x00000033
+ 0x00000012 0x00000004 0x00000004 0x00000005
+ 0x00000003 0x0000000c 0x00000006 0x00000006
+ 0x00000003 0x00000001 0x00000004 0x00000005
+ 0x00000004 0x00000009 0x0000000d 0x00000bff
+ 0x00000000 0x00000003 0x00000003 0x00000006
+ 0x00000006 0x00000001 0x00000011 0x000000c8
+ 0x00000003 0x0000000e 0x00000007 0x00000008
+ 0x00000002 0x00000000 0x00000000 0x00000002
+ 0x00000000 0x00000000 0x00000083 0xf0440303
+ 0x007fe010 0x00001414 0x00000000 0x00000000
+ 0x00000000 0x00000000 0x00000000 0x00000000>;
+ };
+ };
+ };
+
i2c@7000d000 {
status = "okay";
clock-frequency = <400000>;
--
2.24.0
