u-boot.git/drivers/ufs, branch v2020.04 Unnamed repository; edit this file 'description' to name the repository. dma-mapping: move dma_map_(un)single() to <linux/dma-mapping.h> 2020-02-19T13:27:30+00:00 Masahiro Yamada yamada.masahiro@socionext.com 2020-02-14T07:40:19+00:00 9d86b89c590832c9bcb1c69d5ccdecdf731f97ae The implementation of dma_map_single() and dma_unmap_single() is exactly the same for all the architectures that support them. Factor them out to <linux/dma-mapping.h>, and make all drivers to include <linux/dma-mapping.h> instead of <asm/dma-mapping.h>. If we need to differentiate them for some architectures, we can move the generic definitions to <asm-generic/dma-mapping.h>. Add some comments to the helpers. The concept is quite similar to the DMA-API of Linux kernel. Drivers are agnostic about what is going on behind the scene. Just call dma_map_single() before the DMA, and dma_unmap_single() after it. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> 
The implementation of dma_map_single() and dma_unmap_single() is
exactly the same for all the architectures that support them.

Factor them out to <linux/dma-mapping.h>, and make all drivers to
include <linux/dma-mapping.h> instead of <asm/dma-mapping.h>.

If we need to differentiate them for some architectures, we can
move the generic definitions to <asm-generic/dma-mapping.h>.

Add some comments to the helpers. The concept is quite similar to
the DMA-API of Linux kernel. Drivers are agnostic about what is
going on behind the scene. Just call dma_map_single() before the
DMA, and dma_unmap_single() after it.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
dm: core: Create a new header file for 'compat' features 2020-02-06T02:33:46+00:00 Simon Glass sjg@chromium.org 2020-02-03T14:36:16+00:00 336d4615f8fa774557d14f9b3245daa9e5fe3dbc At present dm/device.h includes the linux-compatible features. This requires including linux/compat.h which in turn includes a lot of headers. One of these is malloc.h which we thus end up including in every file in U-Boot. Apart from the inefficiency of this, it is problematic for sandbox which needs to use the system malloc() in some files. Move the compatibility features into a separate header file. Signed-off-by: Simon Glass <sjg@chromium.org> 
At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.

Move the compatibility features into a separate header file.

Signed-off-by: Simon Glass <sjg@chromium.org>
dm: core: Require users of devres to include the header 2020-02-06T02:33:46+00:00 Simon Glass sjg@chromium.org 2020-02-03T14:36:15+00:00 61b29b82683863a970fd4609a7c58512872616bc At present devres.h is included in all files that include dm.h but few make use of it. Also this pulls in linux/compat which adds several more headers. Drop the automatic inclusion and require files to include devres themselves. This provides a good indication of which files use devres. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Anatolij Gustschin <agust@denx.de> 
At present devres.h is included in all files that include dm.h but few
make use of it. Also this pulls in linux/compat which adds several more
headers. Drop the automatic inclusion and require files to include devres
themselves. This provides a good indication of which files use devres.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
ufs: Add glue layer driver for TI J721E devices 2019-10-24T00:47:12+00:00 Faiz Abbas faiz_abbas@ti.com 2019-10-15T12:54:38+00:00 4390eaf67630ed0cff1ed069d73a243c145c2aa5 Add glue layer driver for the controller present on TI's J721E devices. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com> 
Add glue layer driver for the controller present on TI's J721E devices.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
ufs: Add Support for Cadence platform UFS driver 2019-10-24T00:47:12+00:00 Faiz Abbas faiz_abbas@ti.com 2019-10-15T12:54:37+00:00 ef5fb5a84cd7d09fe577f6664885df14310861e9 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> 
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>
ufs: Add Initial Support for UFS subsystem 2019-10-24T00:47:12+00:00 Faiz Abbas faiz_abbas@ti.com 2019-10-15T12:54:36+00:00 7feafb0ae4f703874119bd90d53258134f850d37 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> 
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>