[PATCH v1 0/4] Tegra20 External Memory Controller driver

From: Dmitry Osipenko
Date: Wed May 30 2018 - 11:10:30 EST


Hello,

Couple years ago the Tegra20 EMC driver was removed from the kernel
due to incompatible changes in the Tegra's clock driver. This patchset
introduces a modernized EMC driver. Currently the sole purpose of the
driver is to initialize DRAM frequency to maximum rate during of the
kernels boot-up. Later we may consider implementing dynamic memory
frequency scaling, utilizing functionality provided by this driver.

Dmitry Osipenko (4):
dt: bindings: tegra20-emc: Document interrupt property
ARM: dts: tegra20: Add interrupt to External Memory Controller
clk: tegra20: Turn EMC clock gate into divider
memory: tegra: Introduce Tegra20 EMC driver

.../bindings/arm/tegra/nvidia,tegra20-emc.txt | 2 +
arch/arm/boot/dts/tegra20.dtsi | 1 +
drivers/clk/tegra/clk-tegra20.c | 39 +-
drivers/memory/tegra/Kconfig | 10 +
drivers/memory/tegra/Makefile | 1 +
drivers/memory/tegra/tegra20-emc.c | 573 ++++++++++++++++++
6 files changed, 616 insertions(+), 10 deletions(-)
create mode 100644 drivers/memory/tegra/tegra20-emc.c

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2.17.0