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47 lines
1.0 KiB
Devicetree
47 lines
1.0 KiB
Devicetree
/ {
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memory {
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name = "memory";
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device_type = "memory";
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reg = <0x90000000 0x00000000 0 0x10000000
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0x90000000 0x90000000 0 0x30000000>;
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u-boot,dm-pre-reloc;
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};
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// MD4C1001G
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mc0: ram@0 {
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compatible = "loongson,ls2k0300-ddr";
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u-boot,dm-pre-reloc;
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soc-config-reg = <0x1fe10100>;
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mc-disable-offs = <4>;
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mc-default-offs = <5>;
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sdram-type = "ddr4"; // ddr4
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dimm-type = "udimm"; // rdimm/udimm/sodimm
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cs-map = <0x1>; // bit map: bit0 -- cs0
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// bit1 -- cs1
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// bit2 -- cs2
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// bit3 -- cs3
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data-width = <16>; // 8/16
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sdram-width = <16>; // 8/16
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sdram-banks = <4>; // 4/8
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sdram-bank-groups = <2>; // 0/2/4
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sdram-rows = <16>;
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sdram-cols = <10>;
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// clk-latency = <0x30>; //
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// rd-latency = <0x9>; //
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// wr-latency = <0x4>; //
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mc-dqs-odt = <0x8>; //
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cmd-timing-mode = <1>; // 0: 1T mode; 1(default): 2T mode; 2: 3T mode.
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// To enable the feature below, uncomment it.
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ddr-param-store;
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// early-printf;
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/* addr-mirror; */
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/* reset-revert; */
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};
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};
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