Hello, This patchset adds driver for the External Memory Controller of NVIDIA Tegra30 SoC's. It performs memory hardware configuration that is required for changing DRAM frequency, thus providing facility for the memory frequency scaling on Tegra30. The memory scaling was tested using the Tegra's devfreq driver which is available in upstream, it dynamically changes memory clock rate based on memory clients activity. Dmitry Osipenko (3): dt-bindings: memory: Add binding for NVIDIA Tegra30 External Memory Controller memory: tegra: Introduce Tegra30 EMC driver ARM: dts: tegra30: Add External Memory Controller node .../memory-controllers/nvidia,tegra30-emc.txt | 257 ++++ arch/arm/boot/dts/tegra30.dtsi | 11 + drivers/memory/tegra/Kconfig | 10 + drivers/memory/tegra/Makefile | 1 + drivers/memory/tegra/mc.c | 3 - drivers/memory/tegra/mc.h | 30 +- drivers/memory/tegra/tegra30-emc.c | 1106 +++++++++++++++++ drivers/memory/tegra/tegra30.c | 44 + 8 files changed, 1450 insertions(+), 12 deletions(-) create mode 100644 Documentation/devicetree/bindings/memory-controllers/nvidia,tegra30-emc.txt create mode 100644 drivers/memory/tegra/tegra30-emc.c -- 2.21.0