[U-Boot] [PATCH 00/10] Add Support for UFS subsystem for TI's J721e

[Tom Rini]

On Mon, Sep 09, 2019 at 01:49:49PM +0530, Faiz Abbas wrote:
> The following patches add support for the Universal Flash Storage (UFS)
> subsystem and its implementation on TI's J721e platform.
> 
> The UFS Application Layer (UAP) uses SCSI SAM-4 command set for
> communication with the device. Therefore, the first 4 patches prepare
> the scsi layer for compatibility with UFS. Patch 9 also adds support for
> initializing and configuring the device from the U-boot command line.
> 
> The UFS Transport Protocol Layer (UTP) and UFS Interconnect Layer (UIC)
> are implemented with patch 5. This series only adds support for
> detect and read/write operations to the LUNs present in the remote
> device. Task Management operations and configuration of LUNs will be
> added in a future series.
> 
> Patches 6 through 10 add platform driver, device tree and config support
> for TI's J721E devices.
> 
> Log: https://pastebin.ubuntu.com/p/fTPZsxNjZM/
> 
> Tested on top of Lokesh's tree:
> https://github.com/lokeshvutla/u-boot
> Branch: j721e-full-boot
> 
> References:
> 
> [1] JESD220D UFS 3.0:
> 	https://www.jedec.org/standards-documents/docs/jesd220c
> [2] JESD223D UFS Host Controller Interface (UFSHCI) version 3.0:
> 	https://www.jedec.org/standards-documents/docs/jesd223c
> 
> Faiz Abbas (10):
>   scsi: Simplify scsi_read()/_write()
>   scsi: Add max_bytes to scsi_platdata
>   scsi: Retry inquiry 3 times to overcome Unit Attention condition
>   scsi: Add dma direction member to command structure
>   ufs: Add Initial Support for UFS subsystem
>   ufs: Add Support for Cadence platform UFS driver
>   ufs: Add glue layer driver for TI J721E devices
>   arm: dts: k3-j721e-main: Add UFS nodes
>   cmd: Add Support for UFS commands
>   configs: j721e_evm_a72: Enable configs for UFS
> 
>  arch/arm/dts/k3-j721e-main.dtsi |   25 +
>  cmd/Kconfig                     |    7 +
>  cmd/Makefile                    |    2 +-
>  cmd/ufs.c                       |   28 +
>  configs/j721e_evm_a72_defconfig |    7 +-
>  drivers/Kconfig                 |    2 +
>  drivers/Makefile                |    1 +
>  drivers/scsi/scsi.c             |   83 +-
>  drivers/ufs/Kconfig             |   23 +
>  drivers/ufs/Makefile            |    8 +
>  drivers/ufs/cdns-platform.c     |  122 ++
>  drivers/ufs/ti-j721e-ufs.c      |   75 ++
>  drivers/ufs/ufs-uclass.c        |   16 +
>  drivers/ufs/ufs.c               | 1973 +++++++++++++++++++++++++++++++
>  drivers/ufs/ufs.h               |  918 ++++++++++++++
>  drivers/ufs/unipro.h            |  270 +++++
>  include/dm/uclass-id.h          |    1 +
>  include/scsi.h                  |    4 +
>  include/ufs.h                   |    7 +
>  19 files changed, 3526 insertions(+), 46 deletions(-)
>  create mode 100644 cmd/ufs.c
>  create mode 100644 drivers/ufs/Kconfig
>  create mode 100644 drivers/ufs/Makefile
>  create mode 100644 drivers/ufs/cdns-platform.c
>  create mode 100644 drivers/ufs/ti-j721e-ufs.c
>  create mode 100644 drivers/ufs/ufs-uclass.c
>  create mode 100644 drivers/ufs/ufs.c
>  create mode 100644 drivers/ufs/ufs.h
>  create mode 100644 drivers/ufs/unipro.h
>  create mode 100644 include/ufs.h

I'm glad to see this support coming, it's something we need.  Would you
be willing to list yourself as the maintainer in the top-level
MAINTAINER file for drivers/ufs at least?  Thanks!

-- 
Tom
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