The RK3399-Q7 was validated for three different speed grades of DDR3 (1333MT/s, 1600MT/s, 1866MT/s) to allow for some flexibility in assembly.
This series adds three different DTS variants for the board (which use a common DTSI and only differ in what DRAM timings they include in addition to this common DTSI) and makes the DDR3-1600 timing the default.
*Note* that this is rebased against u-boot-rockchip/master@2b19b2f (which is the same base used for the major RK3399-Q7 DTS update that syncs the U-Boot DTS with the one used in our Linux tree) and will cause a small conflict in merging rk3399-puma.{dts,dtsi}.
Changes in v2: - changed implementation from Kconfig and C preprocessor macros in the DTS to using one DTS per DRAM timing that contains only two includes: one for the common board-level definitions and one for the DRAM timings - added rk3399-puma-ddr1333 for DDR3-1333 timing (replacing the #ifdef implementation) - added rk3399-puma-ddr1866 DTS file for the DDR3-1866 implementation (replacing the #ifdef implementation)
Philipp Tomsich (3): rockchip: dts: rk3399-puma: refactor and rename (default) DDR3-1600 DTS rockchip: dts: rk3399-puma: add DTS for the DDR3-1333 timing rockchip: dts: rk3399-puma: add DTS for the DDR3-1866 timing
arch/arm/dts/Makefile | 4 +++- arch/arm/dts/rk3399-puma-ddr1333.dts | 11 +++++++++++ arch/arm/dts/rk3399-puma-ddr1600.dts | 11 +++++++++++ arch/arm/dts/rk3399-puma-ddr1866.dts | 11 +++++++++++ arch/arm/dts/{rk3399-puma.dts => rk3399-puma.dtsi} | 2 -- configs/puma-rk3399_defconfig | 2 +- 6 files changed, 37 insertions(+), 4 deletions(-) create mode 100644 arch/arm/dts/rk3399-puma-ddr1333.dts create mode 100644 arch/arm/dts/rk3399-puma-ddr1600.dts create mode 100644 arch/arm/dts/rk3399-puma-ddr1866.dts rename arch/arm/dts/{rk3399-puma.dts => rk3399-puma.dtsi} (98%)