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path: root/drivers/scsi
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2018-02-08Move most CONFIG_HAVE_BLOCK_DEVICE to KconfigAdam Ford
config_fallbacks.h has some logic that sets HAVE_BLOCK_DEVICE based on a list of enabled options. Moving HAVE_BLOCK_DEVICE to Kconfig allows us to drastically shrink the logic in config_fallbacks.h Signed-off-by: Adam Ford <aford173@gmail.com> [trini: Rename HAVE_BLOCK_DEVICE to CONFIG_BLOCK_DEVICE] Signed-off-by: Tom Rini <trini@konsulko.com>
2017-09-11blk: dm: make blk_create_device() take a number of block instead of a sizeJean-Jacques Hiblot
There is an overflow problem when taking the size instead of the number of blocks in blk_create_device(). This results in a wrong device size: the device apparent size is its real size modulo 4GB. Using the number of blocks instead of the device size fixes the problem and is more coherent with the internals of the block layer. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-08-16env: Rename common functions related to setenv()Simon Glass
We are now using an env_ prefix for environment functions. Rename these commonly used functions, for consistency. Also add function comments in common.h. Suggested-by: Wolfgang Denk <wd@denx.de> Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-01dm: mmc: Allow disabling driver model in SPLSimon Glass
At present if U-Boot proper uses driver model for MMC, then SPL has to also. While this is desirable, it places a significant barrier to moving to driver model in some cases. For example, with a space-constrained SPL it may be necessary to enable CONFIG_SPL_OF_PLATDATA which involves adjusting some drivers. Add new SPL versions of the options for DM_MMC, DM_MMC_OPS and BLK. By default these follow their non-SPL versions, but this can be changed by boards which need it. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-07-11dm: scsi: Drop scsi_init() when driver model is usedSimon Glass
This function should not be used with driver model. Update the code to reflect this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-07-11dm: scsi: Split out the bus scanning codeSimon Glass
Split out the code that scans a single SCSI bus into a separate function. This will allow it to be used from driver model. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-07-11dm: scsi: Adjust return value of scsi_exec()Simon Glass
Change this function to return an error number instead of true/false. This allows us to return a proper error number. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-07-11dm: scsi: Add operations for SCSI devicesSimon Glass
The SCSI uclass currently has no operations. It just uses the global SCSI functions. Fix this by adding operations to the only two drivers that use the uclass, and replacing the global functions with those defined locally in the SCSI code. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-07-11dm: scsi: Document and rename the scsi_scan() parameterSimon Glass
The 'mode' parameter is actually a flag to determine whether to display a list of devices found during the scan. Rename it to reflect this, add a function comment and adjust callers to use a boolean. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-07-11dm: scsi: Add a device pointer to scan_exec(), scsi_bus_reset()Simon Glass
With driver model these functions need a device pointer. Add one even when CONFIG_DM_SCSI is not defined. This avoids having ugly conditional function prototypes, When CONFIG_DM_SCSI is not defined we can just ignore the pointer. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-07-11dm: ahci: Unwind the confusing init codeSimon Glass
Two AHCI drivers use SCSI with CONFIG_DM_SCSI. The SCSI uclass calls scsi_low_level_init() which is implemented by ahci.c. If CONFIG_SCSI_AHCI_PLAT is defined it does one thing and if it is not it does something else. We don't need to call through scsi_low_level_init() to get the init completed. Instead, adjust the two drivers to call into AHCI directly. Drop the post-probe init in the SCSI uclass. This means that driver model doesn't need to use scsi_low_level_init(). It is a legacy function and driver model should use a driver's probe() method instead. While we are here, add a comment to the top of the file explaining what ahci.c does. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-07-11dm: scsi: Indent the confusing #ifdefsSimon Glass
These are very confusing without some sort of indentation. At some point we will be able to remove them, but for now, indent them. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-07-11dm: scsi: Use the uclass platform dataSimon Glass
At present the two driver-model SCSI drivers use device platform data to store information that relates to the uclass. It is better to use uclass platform data in this situation. Update the code to do this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-07-11dm: scsi: Drop the ccb typedefSimon Glass
We should not be using typedefs in U-Boot and 'ccb' is a pretty short name. It is also used with variables. Drop the typedef and use 'struct' instead. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-07-11scsi: Move drivers into new drivers/scsi directorySimon Glass
At present we have the SCSI drivers in the drivers/block and common/ directories. It is better to split them out into their own place. Use drivers/scsi which is what Linux does. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>