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am62a7: dts: Enable full 4GB LPDDR4

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AM62A7-SK board has 4GB LPDDR4 Micron MT53E2G32D4DE-046 AUT:B part
but only 2GB was enabled early.

Enable full 4GB memory by updating the latter 2GB memory region
which gets mapped to 0x0880000000 i.e. DDR16SS0_SDRAM as referred in
Table 2-1. AM62A Common SoC Memory of AM62Ax TRM [1].

[1] : https://www.ti.com/lit/zip/spruj16
Logs: https://gist.github.com/devarsht/e85b6af89c01ddadb3a62f3e5f196af8

Signed-off-by: Devarsh Thakkar <devarsht@ti.com>
This commit is contained in:
Devarsh Thakkar
2023-02-06 17:04:51 +05:30
committed by Tom Rini
parent 051451ad83
commit 885198536d
2 changed files with 6 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm/dts/k3-am62a7-r5-sk.dts
View File

@@ -25,7 +25,9 @@
memory@80000000 {
device_type = "memory";
reg = <0x00000000 0x80000000 0x00000000 0x80000000>; /* 2G RAM */
/* 4G RAM */
reg = <0x00000000 0x80000000 0x00000000 0x80000000>,
<0x00000008 0x80000000 0x00000000 0x80000000>;
bootph-pre-ram;
};

5
arch/arm/dts/k3-am62a7-sk.dts
View File

@@ -26,8 +26,9 @@
memory@80000000 {
device_type = "memory";
/* 2G RAM */
reg = <0x00000000 0x80000000 0x00000000 0x80000000>;
/* 4G RAM */
reg = <0x00000000 0x80000000 0x00000000 0x80000000>,
<0x00000008 0x80000000 0x00000000 0x80000000>;
};
reserved-memory {