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[u-boot,v3,0/4] Introduce MEMORY uclass and TI GPMC driver

Message ID 20221020133049.8398-1-rogerq@kernel.org
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Series Introduce MEMORY uclass and TI GPMC driver | expand

Message

Roger Quadros Oct. 20, 2022, 1:30 p.m. UTC 
Hi,

This series introduces the MEMORY controller uclass for the drivers
that exist in drivers/memory directory.

With that, we add the TI GPMC Memory controller driver as the first
user of this uclass.

The GPMC is a unified memory controller dedicated for interfacing
with external memory devices like
 - Asynchronous SRAM-like memories and ASICs
 - Asynchronous, synchronous, and page mode burst NOR flash
 - NAND flash
 - Pseudo-SRAM devices

The driver is pulled straight from the Linux kernel and adapted
for u-boot.
    
This driver will take care of setting up the GPMC based on
the settings specified in the Device tree and then
probe its children.

cheers,
-roger

Changelog:
v3:
- Use CONFIG_MEMORY instead of CONFIG_DM_MEMORY
- Introduce CONFIG_SPL_MEMORY and use it to gate inclusion of
of drivers/memory for SPL build
- Make TI_GPMC depend on OF_CONTROL and CLK as well

v2:
- Introduce MEMORY uclass

Roger Quadros (4):
  dm: memory: Introduce new uclass
  scripts: Makefile.spl: Enable memory drivers to be built for SPL
  dt/bindings: memory: Add bindings for TI GPMC driver
  memory: Add TI GPMC driver

 arch/sandbox/dts/test.dts                     |    4 +
 common/spl/Kconfig                            |    7 +
 .../memory/ti,gpmc-child.yaml                 |  252 ++++
 doc/device-tree-bindings/memory/ti,gpmc.yaml  |  190 +++
 drivers/memory/Kconfig                        |   36 +
 drivers/memory/Makefile                       |    3 +
 drivers/memory/memory-sandbox.c               |   18 +
 drivers/memory/memory-uclass.c                |   13 +
 drivers/memory/ti-gpmc.c                      | 1240 +++++++++++++++++
 drivers/memory/ti-gpmc.h                      |  298 ++++
 include/dm/uclass-id.h                        |    1 +
 include/linux/mtd/omap_gpmc.h                 |    3 +
 scripts/Makefile.spl                          |    1 +
 test/dm/Makefile                              |    1 +
 test/dm/memory.c                              |   21 +
 15 files changed, 2088 insertions(+)
 create mode 100644 doc/device-tree-bindings/memory/ti,gpmc-child.yaml
 create mode 100644 doc/device-tree-bindings/memory/ti,gpmc.yaml
 create mode 100644 drivers/memory/memory-sandbox.c
 create mode 100644 drivers/memory/memory-uclass.c
 create mode 100644 drivers/memory/ti-gpmc.c
 create mode 100644 drivers/memory/ti-gpmc.h
 create mode 100644 test/dm/memory.c