Enable support for the NVIDIA Tegra210 SoC. Also known as Tegra X1,
the Tegra210 has four Cortex-A57 cores paired with four Cortex-A53
cores in a switched configuration. It features a GPU of the Maxwell
architecture with support for DX11, SM4, OpenGL 4.5, OpenGL ES 3.1
and providing 256 CUDA cores. It supports hardware-accelerated en-
and decoding of various video standards including H.265, H.264 and
VP8 at 4K resolution and up to 60 fps.

Besides the multimedia features it also comes with a variety of I/O
controllers, such as GPIO, I2C, SPI, SDHCI, PCIe, SATA and XHCI, to
name only a few.

source code:

drivers/clk/tegra/clk-tegra210.c