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2019-10-23scsi: Add dma direction member to command structureFaiz Abbas
Some SCSI devices like UFS use DMA for executing scsi commands and hence need to know the direction of transfer of the dma. Add a dma_dir element to the command structure to facilitate this. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-10-23scsi: Add max_bytes_per_req to scsi_platdataFaiz Abbas
Add max_bytes_per_req to scsi_platdata to enable the host driver to limit the number of bytes that can be read/written per request. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.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: 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: scsi: Add operationsSimon Glass
Add operations for SCSI. These are not yet implemented, but we have the struct. 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: 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>
2017-07-11dm: scsi: Rename struct SCSI_cmd_block to struct scsi_cmdSimon Glass
This name should be lower case. Also the _block suffix is superfluous. Rename it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-07-11dm: scsi: Rearrange header file for driver modelSimon Glass
Put the driver-model declarations first since we are migrating to that. Also drop scsi_init() when driver model is used. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-07-11scsi: Drop scsi_print_error()Simon Glass
This function is only defined by one driver and is empty. Move it into the SCSI implementation itself. We could remove it, but it should be useful for debugging. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-12-20dm: Add support for scsi/sata based devicesMichal Simek
All sata based drivers are bind and corresponding block device is created. Based on this find_scsi_device() is able to get back block device based on scsi_curr_dev pointer. intr_scsi() is commented now but it can be replaced by calling find_scsi_device() and scsi_scan(). scsi_dev_desc[] is commented out but common/scsi.c heavily depends on it. That's why CONFIG_SYS_SCSI_MAX_DEVICE is hardcoded to 1 and symbol is reassigned to a block description allocated by uclass. There is only one block description by device now but it doesn't need to be correct when more devices are present. scsi_bind() ensures corresponding block device creation. uclass post_probe (scsi_post_probe()) is doing low level init. SCSI/SATA DM based drivers requires to have 64bit base address as the first entry in platform data structure to setup mmio_base. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-12-09Revert "Merge branch 'master' of git://www.denx.de/git/u-boot-microblaze"Tom Rini
This reverts commit 3edc0c252257e4afed163a3a74aba24a5509b198, reversing changes made to bb135a0180c31fbd7456021fb9700b49bba7f533.
2016-12-08dm: Add support for scsi/sata based devicesMichal Simek
All sata based drivers are bind and corresponding block device is created. Based on this find_scsi_device() is able to get back block device based on scsi_curr_dev pointer. intr_scsi() is commented now but it can be replaced by calling find_scsi_device() and scsi_scan(). scsi_dev_desc[] is commented out but common/scsi.c heavily depends on it. That's why CONFIG_SYS_SCSI_MAX_DEVICE is hardcoded to 1 and symbol is reassigned to a block description allocated by uclass. There is only one block description by device now but it doesn't need to be correct when more devices are present. scsi_bind() ensures corresponding block device creation. uclass post_probe (scsi_post_probe()) is doing low level init. SCSI/SATA DM based drivers requires to have 64bit base address as the first entry in platform data structure to setup mmio_base. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org> Series-changes: 2 - Use CONFIG_DM_SCSI instead of mix of DM_SCSI and DM_SATA Ceva sata has never used sata commands that's why keep it in SCSI part only. - Separate scsi_scan() for DM_SCSI and do not change cmd/scsi.c - Extend platdata Series-changes: 3 - Fix scsi_scan return path - Fix header location uclass-internal.h - Add scsi_max_devs under !DM_SCSI - Add new header device-internal because of device_probe() - Redesign block device creation algorithm - Use device_unbind in error path - Create block device with id and lun numbers (lun was there in v2) - Cleanup dev_num initialization in block device description with fixing parameters in blk_create_devicef - Create new Kconfig menu for SATA/SCSI drivers - Extend description for DM_SCSI - Fix Kconfig dependencies - Fix kernel doc format in scsi_platdata - Fix ahci_init_one - vendor variable Series-changes: 4 - Fix Kconfig entry - Remove SPL ifdef around SCSI uclass - Clean ahci_print_info() ifdef logic
2016-12-02scsi: Change scsi_scan() to be able to return valueMichal Simek
With DM_SCSI this function will return more than one return value to cover errors. Suggested-by: Simon Glass <sjg@chromium.org> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-12-02scsi: Remove completely unused functionsMichal Simek
These functions are not called for any location. This patch removes them scsi_trim_trail(), scsi_get_disk_count() and scsi_setup_read6(). Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-06-12ahci: support LBA48 data reads for 2+TB drivesMark Langsdorf
Enable full 48-bit LBA48 data reads by passing the upper word of the LBA block pointer in bytes 9 and 10 of the FIS. This allows uboot to load data from any arbitrary sector on a drive with 2 or more TB of available data connected to an AHCI controller. Signed-off-by: Mark Langsdorf <mark.langsdorf@gmail.com> Signed-off-by: Andre Przywara <osp@andrep.de> [trini: Make use of CONFIG_SYS_64BIT_LBA in a few places to drop warnings on platforms that don't enable that feature ] Signed-off-by: Tom Rini <trini@konsulko.com>
2013-07-24Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2013-04-01Consolidate bool typeYork Sun
'bool' is defined in random places. This patch consolidates them into a single header file include/linux/types.h, using stdbool.h introduced in C99. All other #define, typedef and enum are removed. They are all consistent with true = 1, false = 0. Replace FALSE, False with false. Replace TRUE, True with true. Skip *.py, *.php, lib/* files. Signed-off-by: York Sun <yorksun@freescale.com>
2012-11-02ahci: Make the AHCI code find the capacity of disks > 128 GB properlyGabe Black
In the structure returned by the ATA identify device command, there are two fields which describe the device capacity. One is a 32 bit data type which reports the number of sectors as a 28 bit LBA, and the other is a 64 bit data type which is for a 48 bit LBA. If the device doesn't support 48 bit LBAs, the small value is the only value with the correct size. If it supports more, if the number of sectors is small enough to fit into 28 bits, both fields reflect the correct value. If it's too large, the smaller field has 28 bits of 1s, 0xfffffff, and the other field has the correct value. The AHCI driver is implemented by attaching to the generic SCSI code and translating on the fly between SCSI binary data structures and AHCI data structures. It responds to requests to execute specific SCSI commands by executing the equivalent AHCI commands and then crafting a response which matches what a SCSI disk would send. The AHCI driver now considers both fields and chooses the correct one when implementing both the SCSI READ CAPACITY (10) and READ CAPACITY (16) commands. Signed-off-by: Gabe Black <gabeblack@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-11-02scsi: Add function and env var to report number of scsi drivesStefan Reinauer
Add a new function to find out the number of available SCSI disks. Also set the 'scsidevs' environment variable after each scan. Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-05-20USB: Align buffers at cachelinePuneet Saxena
This avoids cache-alignment warnings shown in console when a usb command is entered. Whenever X bytes of unaligned buffer is invalidated, arm core invalidates X + Y bytes as per the cache line size and throws these warnings. Signed-off-by: Puneet Saxena <puneets@nvidia.com> Signed-off-by: Marek Vasut <marex@denx.de>
2011-07-26scsi/ahci: add support for non-PCI controllersRob Herring
Add support for AHCI controllers that are not PCI based. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Wolfgang Denk <wd@denx.de>
2008-05-21Big white-space cleanup.Wolfgang Denk
This commit gets rid of a huge amount of silly white-space issues. Especially, all sequences of SPACEs followed by TAB characters get removed (unless they appear in print statements). Also remove all embedded "vim:" and "vi:" statements which hide indentation problems. Signed-off-by: Wolfgang Denk <wd@denx.de>
2003-06-27* Code cleanup:wdenk
- remove trailing white space, trailing empty lines, C++ comments, etc. - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c) * Patches by Kenneth Johansson, 25 Jun 2003: - major rework of command structure (work done mostly by Michal Cendrowski and Joakim Kristiansen)
2002-04-01Initial revisionwdenk