[PATCH v7 00/18] Tegra124 EMC (external memory controller) support

[Tomeu Vizoso]

Hello,

this v7 rebases on top of v4.0-rc1 and contains the following changes:

* Removes registers from the burst blocks that were redundant
* Removes nvidia,emc-cfg-dig-dll as it is unused in T124
* Adds timings for the Nyan Big and Blaze boards
* Disables the ARBITRATION_EMEM interrupt, as it can be very disruptive when
the EMC clock runs at low frequencies and shouldn't probably be enabled in
any case in a production kernel as it's intended to be used as a development
tool
* I have tested it on the Nyan boards, in addition to the Jetson TK1

Patch 1: Removes the old EMC clock, that was unused and not functional

Patch 2: Documents bindings for the new long-ram-code property

Patch 3: Adds API for reading the ram code

Patches 4 to 7: Document OF additions

Patch 8: Adds EMC node to Tegra124 DT

Patch 9: Adds timings for Jetson TK1 board

Patch 10: Adds functions to the MC driver so the EMC driver can stay within
its own registers

Patch 11: Adds the actual EMC driver, making use of the new MC API

Patch 12: Exposes clk_hw_reparent function

Patch 13: Adds EMC clock driver, making use of API provided by the EMC driver

Patch 14: Adds debugfs entry for getting and setting the EMC rate

Patch 15: On Tegra124, have the EMC clock be the parent of the MC clock

Patches 16 and 17: Add timings for the Nyan Big and Blaze boards

Patches 18: Disables ARBITRATION_EMEM

http://cgit.collabora.com/git/user/tomeu/linux.git/log/?h=emc-v7

Regards,

Tomeu

Mikko Perttunen (9):
  clk: tegra124: Remove old emc clock
  soc/tegra: Add ram code reader helper
  of: Add Tegra124 EMC bindings
  ARM: tegra: Add EMC to Tegra124 device tree
  ARM: tegra: Add EMC timings to Jetson TK1 device tree
  memory: tegra: Add API needed by the EMC driver
  memory: tegra: Add EMC (external memory controller) driver
  clk: tegra: Add EMC clock driver
  memory: tegra: Add debugfs entry for getting and setting the EMC rate

Tomeu Vizoso (9):
  of: Document long-ram-code property in nvidia,tegra20-apbmisc
  of: document new emc-timings subnode in nvidia,tegra124-car
  of: Document timings subnode of nvidia,tegra-mc
  of: document external-memory-controller property in tegra124-car
  clk: Expose clk_hw_reparent to providers
  clk: tegra: Set the EMC clock as the parent of the MC clock
  ARM: tegra: Add EMC timings to Nyan Big device tree
  ARM: tegra: Add EMC timings to Nyan Blaze device tree
  memory: tegra: Disable ARBITRATION_EMEM interrupt

 .../bindings/clock/nvidia,tegra124-car.txt         |   44 +-
 .../memory-controllers/nvidia,tegra-mc.txt         |   84 +-
 .../bindings/memory-controllers/tegra-emc.txt      |  374 +++
 .../bindings/misc/nvidia,tegra20-apbmisc.txt       |    2 +
 arch/arm/boot/dts/tegra124-jetson-tk1-emc.dtsi     | 2421 ++++++++++++++++++++
 arch/arm/boot/dts/tegra124-jetson-tk1.dts          |    4 +
 arch/arm/boot/dts/tegra124-nyan-big-emc.dtsi       | 2023 ++++++++++++++++
 arch/arm/boot/dts/tegra124-nyan-big.dts            |    2 +
 arch/arm/boot/dts/tegra124-nyan-blaze-emc.dtsi     | 2049 +++++++++++++++++
 arch/arm/boot/dts/tegra124.dtsi                    |    8 +
 drivers/clk/clk.c                                  |    8 +
 drivers/clk/tegra/Makefile                         |    2 +-
 drivers/clk/tegra/clk-emc.c                        |  528 +++++
 drivers/clk/tegra/clk-tegra124.c                   |   18 +-
 drivers/clk/tegra/clk.h                            |    3 +
 drivers/memory/tegra/Kconfig                       |   11 +
 drivers/memory/tegra/Makefile                      |    2 +
 drivers/memory/tegra/mc.c                          |  140 +-
 drivers/memory/tegra/tegra124-emc.c                | 1165 ++++++++++
 drivers/memory/tegra/tegra124.c                    |   44 +
 drivers/soc/tegra/fuse/tegra-apbmisc.c             |   21 +
 include/linux/clk-provider.h                       |    1 +
 include/soc/tegra/emc.h                            |   19 +
 include/soc/tegra/fuse.h                           |    1 +
 include/soc/tegra/mc.h                             |   14 +-
 25 files changed, 8967 insertions(+), 21 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/memory-controllers/tegra-emc.txt
 create mode 100644 arch/arm/boot/dts/tegra124-jetson-tk1-emc.dtsi
 create mode 100644 arch/arm/boot/dts/tegra124-nyan-big-emc.dtsi
 create mode 100644 arch/arm/boot/dts/tegra124-nyan-blaze-emc.dtsi
 create mode 100644 drivers/clk/tegra/clk-emc.c
 create mode 100644 drivers/memory/tegra/tegra124-emc.c
 create mode 100644 include/soc/tegra/emc.h

-- 
2.1.0

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