| From: |
| Svyatoslav Ryhel <clamor95-AT-gmail.com> |
| To: |
| Krzysztof Kozlowski <krzk-AT-kernel.org>, Rob Herring <robh-AT-kernel.org>, Conor Dooley <conor+dt-AT-kernel.org>, Thierry Reding <thierry.reding-AT-kernel.org>, Jonathan Hunter <jonathanh-AT-nvidia.com>, Mikko Perttunen <mperttunen-AT-nvidia.com>, Svyatoslav Ryhel <clamor95-AT-gmail.com> |
| Subject: |
| [PATCH v2 0/7] Tegra114: implement EMC support |
| Date: |
| Mon, 27 Apr 2026 10:03:05 +0300 |
| Message-ID: |
| <20260427070312.81679-1-clamor95@gmail.com> |
| Cc: |
| linux-kernel-AT-vger.kernel.org, devicetree-AT-vger.kernel.org, linux-tegra-AT-vger.kernel.org |
| Archive-link: |
| Article |
Add support for External Memory Controller found in Tegra 4 SoC along
with adjustments required for it to work properly.
Tested on ASUS TF701T (T40X) and Nvidia Tegratab (T40S). Both work fine.
First 4 patches of series are dedicated to memory subsystem, while
the remaining 3 patches must be picked after first 4 are applied
and are meant for the Tegra device tree maintainer.
Part of previous patchset: https://lore.kernel.org/lkml/20251125120559.158860-1-clam...
---
Changes in v2:
- rebased on top of Mikko's patch removing duplicated code
- dropped unneeded headers
- adjusted function naming to be SoC specific
- switched to dev_err_probe where appropriate
- made emc_init void
- header change commit squashed with related binding commit
- combined with related patchset for Tegra114 device tree changes
---
Svyatoslav Ryhel (7):
dt-bindings: memory: Document Tegra114 Memory Controller
memory: tegra: Implement EMEM regs and ICC ops for Tegra114
dt-bindings: memory: Document Tegra114 External Memory Controller
memory: tegra: Add Tegra114 EMC driver
ARM: tegra: Add EMC OPP and ICC properties to Tegra114 EMC and ACTMON
device-tree nodes
ARM: tegra: Add DC interconnections for Tegra114
ARM: tegra: Configure Tegra114 power domains
.../nvidia,tegra124-emc.yaml | 174 +-
.../nvidia,tegra124-mc.yaml | 31 +-
.../dts/nvidia/tegra114-peripherals-opp.dtsi | 1439 +++++++++++++++++
arch/arm/boot/dts/nvidia/tegra114.dtsi | 157 ++
drivers/memory/tegra/Kconfig | 13 +
drivers/memory/tegra/Makefile | 1 +
drivers/memory/tegra/tegra114-emc.c | 1353 ++++++++++++++++
drivers/memory/tegra/tegra114.c | 193 +++
include/dt-bindings/memory/tegra114-mc.h | 67 +
9 files changed, 3257 insertions(+), 171 deletions(-)
create mode 100644 arch/arm/boot/dts/nvidia/tegra114-peripherals-opp.dtsi
create mode 100644 drivers/memory/tegra/tegra114-emc.c
--
2.51.0
