Commit graph

3 commits

Author SHA1 Message Date
Faiz Abbas
4390eaf676 ufs: Add glue layer driver for TI J721E devices
Add glue layer driver for the controller present on TI's J721E devices.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-10-23 20:47:12 -04:00
Faiz Abbas
ef5fb5a84c ufs: Add Support for Cadence platform UFS driver
Add Support for the platform driver for the Cadence device present on
TI's J721e device.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-10-23 20:47:12 -04:00
Faiz Abbas
7feafb0ae4 ufs: Add Initial Support for UFS subsystem
Add Support for UFS Host Controller Interface (UFSHCI) for communicating
with Universal Flash Storage (UFS) devices. The steps to initialize the
host controller interface are the following:

- Initiate the Host Controller Initialization process by writing to the
Host controller enable register.
- Configure the Host Controller base address registers by allocating a
host memory space and related data structures.
- Unipro link startup procedure
- Check for connected device
- Configure UFS host controller to process requests

Also register this host controller as a SCSI host controller.

Taken from Linux Kernel v5.2 (drivers/scsi/ufs/ufshcd.c) and ported to
U-boot.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-10-23 20:47:12 -04:00