Add the board-specific U-Boot device tree overrides for the Thundercomm RUBIK Pi 3.
When U-Boot is loaded as the primary bootloader, no previous stage provides the memory layout. Describe the 8 GiB LPDDR4x layout locally so U-Boot can use the available DRAM. Signed-off-by: Hongyang Zhao <[email protected]> Reviewed-by: Simon Glass <[email protected]> --- .../arm/dts/qcs6490-thundercomm-rubikpi3-u-boot.dtsi | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/arch/arm/dts/qcs6490-thundercomm-rubikpi3-u-boot.dtsi b/arch/arm/dts/qcs6490-thundercomm-rubikpi3-u-boot.dtsi new file mode 100644 index 00000000000..8518cd402d0 --- /dev/null +++ b/arch/arm/dts/qcs6490-thundercomm-rubikpi3-u-boot.dtsi @@ -0,0 +1,20 @@ +// SPDX-License-Identifier: BSD-3-Clause +/ { + /* + * When running as the primary bootloader there is no prior stage to + * populate the memory layout for us. We should have multiple nodes + * here, but ABL does not like that. + */ + memory@80000000 { + device_type = "memory"; + reg = <0 0x80000000 0 0x39700000>, + <0 0xc0000000 0 0x01800000>, + <0 0xc3400000 0 0xbcc00000>, + <1 0x80000000 1 0x00000000>; + }; +}; + +// RAM Entry 0 : Base 0x0080000000 Size 0x0039700000 +// RAM Entry 1 : Base 0x00C0000000 Size 0x0001800000 +// RAM Entry 2 : Base 0x00C3400000 Size 0x00BCC00000 +// RAM Entry 3 : Base 0x0180000000 Size 0x0100000000 -- 2.43.0
