[SCSI] ufshcd: UFS Host controller driver
authorSantosh Yaraganavi <santoshsy@gmail.com>
Wed, 29 Feb 2012 06:41:50 +0000 (12:11 +0530)
committerJames Bottomley <JBottomley@Parallels.com>
Tue, 27 Mar 2012 07:26:28 +0000 (08:26 +0100)
commit7a3e97b0dc4bbac2ba7803564ab0057722689921
treeace32dfcc94a0994b123cc1e3b3967eccd9a0ef3
parent0bd7f84211ad244607e28e9e8fbad0244d54e6f5
[SCSI] ufshcd: UFS Host controller driver

This patch adds support for Universal Flash Storage(UFS)
host controllers. The UFS host controller driver
includes host controller initialization method.

The Initialization process involves following steps:
 - Initiate UFS Host Controller initialization process by writing
   to Host controller enable register
 - Configure UFS Host controller registers with host memory space
   datastructure offsets.
 - Unipro link startup procedure
 - Check for connected device
 - Configure UFS host controller to process requests
 - Enable required interrupts
 - Configure interrupt aggregation

[jejb: fix warnings in 32 bit compile]
Signed-off-by: Santosh Yaraganavi <santoshsy@gmail.com>
Signed-off-by: Vinayak Holikatti <vinholikatti@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@linaro.org>
Reviewed-by: Vishak G <vishak.g@samsung.com>
Reviewed-by: Girish K S <girish.shivananjappa@linaro.org>
Reviewed-by: Namjae Jeon <linkinjeon@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Documentation/scsi/00-INDEX
Documentation/scsi/ufs.txt [new file with mode: 0644]
drivers/scsi/Kconfig
drivers/scsi/Makefile
drivers/scsi/ufs/Kconfig [new file with mode: 0644]
drivers/scsi/ufs/Makefile [new file with mode: 0644]
drivers/scsi/ufs/ufs.h [new file with mode: 0644]
drivers/scsi/ufs/ufshcd.c [new file with mode: 0644]
drivers/scsi/ufs/ufshci.h [new file with mode: 0644]