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ARM: dts: tegra20: paz00: Add memory timings 

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@gmx.de>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Dmitry Osipenko 2019-12-18 21:59:57 +03:00 committed by Thierry Reding
parent ceffd1040a
commit 834f1d6cf3
1 changed files with 46 additions and 0 deletions
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46
arch/arm/boot/dts/tegra20-paz00.dts
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@ -311,6 +311,52 @@
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>;