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If NO_DMA=y:
drivers/built-in.o: In function `ufshcd_transfer_req_compl':
drivers/scsi/ufs/ufshcd.c:1182: undefined reference to `scsi_dma_unmap'
drivers/built-in.o: In function `ufshcd_map_sg':
drivers/scsi/ufs/ufshcd.c:377: undefined reference to `scsi_dma_map'
drivers/built-in.o: In function `ufshcd_do_reset':
drivers/scsi/ufs/ufshcd.c:912: undefined reference to `scsi_dma_unmap'
drivers/built-in.o: In function `ufshcd_memory_alloc':
drivers/scsi/ufs/ufshcd.c:565: undefined reference to `dma_alloc_coherent'
drivers/built-in.o: In function `ufshcd_free_hba_memory':
drivers/scsi/ufs/ufshcd.c:185: undefined reference to `dma_free_coherent'
drivers/scsi/ufs/ufshcd.c:192: undefined reference to `dma_free_coherent'
drivers/scsi/ufs/ufshcd.c:199: undefined reference to `dma_free_coherent'
drivers/scsi/ufs/ufshcd.c:185: undefined reference to `dma_free_coherent'
drivers/scsi/ufs/ufshcd.c:192: undefined reference to `dma_free_coherent'
drivers/built-in.o:drivers/scsi/ufs/ufshcd.c:199: more undefined references to `dma_free_coherent' follow
drivers/built-in.o: In function `ufshcd_abort':
drivers/scsi/ufs/ufshcd.c:1498: undefined reference to `scsi_dma_unmap'
drivers/built-in.o: In function `ufshcd_device_reset':
drivers/scsi/ufs/ufshcd.c:1436: undefined reference to `scsi_dma_unmap'
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Santosh Y <santoshsy@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Commit 0998d06310 (device-core: Ensure drvdata = NULL when no
driver is bound) removes the need to set driver data field to
NULL.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Santosh Y <santoshsy@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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This patch corrects the expected data transfer size of the
command UPIU. The current implementation of cmd->transfersize
is wrong as it probably equal to sector size. With this
implementation the transfer size is updated correctly
Reported-by: KOBAYASHI Yoshitake <yoshitake.kobayashi@toshiba.co.jp>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Namjae Jeon <linkinjeon@gmail.com>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Tested-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Santosh Yaraganavi <santoshsy@gmail.com>
Signed-off-by: Vinayak Holikatti <vinholikatti@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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This patch adds Platform glue driver for ufshcd.
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Namjae Jeon <linkinjeon@gmail.com>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Reviewed-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
Tested-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Vinayak Holikatti <vinholikatti@gmail.com>
Signed-off-by: Santosh Yaraganavi <santoshsy@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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This patch separates PCI code from ufshcd.c and makes it as a
core driver module and adds a new file ufshcd-pci.c as PCI glue
driver.
[jejb: strip __devinit and devexit_p()]
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Namjae Jeon <linkinjeon@gmail.com>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Tested-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Vinayak Holikatti <vinholikatti@gmail.com>
Signed-off-by: Santosh Yaraganavi <santoshsy@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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This patch segregates the PCI specific code in ufshcd.c to make it
ready for splitting into core ufs driver and PCI glue driver. Also
copyright header modification to remove extra warranty disclaim.
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Namjae Jeon <linkinjeon@gmail.com>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Tested-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Vinayak Holikatti <vinholikatti@gmail.com>
Signed-off-by: Santosh Yaraganavi <santoshsy@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.
This change removes the use of __devinit, __devexit_p, __devinitdata,
__devinitconst, and __devexit from these drivers.
Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.
Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Adam Radford <linuxraid@lsi.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Currently the UFS host driver has returned incorrect values for SUCCESS
and FAILED. Fix it to return the correct value to the upper layer.
Signed-off-by: Namjae Jeon <linkinjeon@gmail.com>
Acked-by: Santosh Y <santoshsy@gmail.com>
Signed-off-by: Venkatraman S <svenkatr@ti.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Otherwise it counter intuitively returns 0 if device is present.
Signed-off-by: Venkatraman S <svenkatr@ti.com>
Reviewed-by: Namjae Jeon <linkinjeon@gmail.com>
Acked-by: Santosh Y <santoshsy@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Use macro module_pci_driver and get rid of boilerplate code. No
functional changes.
Signed-off-by: Venkatraman S <svenkatr@ti.com>
Acked-by: Santosh Y <santoshsy@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Avoid dereferencing a NULL pointer if scsi_host_alloc is failed.
Signed-off-by: Namjae Jeon <linkinjeon@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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UTP Transfer request list base registers UTRLBA and UTRLBAU
must be assigned, lower-32 and upper-32 bits of UTRLD list
physical base addresses respectively.
Currently UTRLBAU is being assigned lower-32 bits of UTRLD
physical base address. This will cause an issue with
controllers that can support 64-bit addressing.
This patch correctly assigns upper-32 bits of UTRLD physical
base address to UTRLBAU.
Reported-by: Rene De Jong <rene.dejong@arm.com>
Signed-off-by: Santosh Yaraganavi <santoshsy@gmail.com>
Reviewed-by: Vinayak Holikatti <vinholikatti@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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While interpreting the result of UTP task completion status,
by using boolean &&, the evaluation would fail when the
UPIU_TASK_MANAGEMENT_FUNC_SUCCEEDED was received.
Either UPIU_TASK_MANAGEMENT_FUNC_COMPL or
UPIU_TASK_MANAGEMENT_FUNC_SUCCEEDED should be
considered as a success result.
Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Venkatraman S <svenkatr@ti.com>
Reviewed-by: Namjae Jeon <linkinjeon@gmail.com>
Acked-by: Santosh Y <santoshsy@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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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>
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