u-boot.git/drivers/block/blk-uclass.c, branch v2019.01

blk: Rework guard around part_init call

2018-12-12T17:14:22+00:00

The function part_init() will only be built when we have both
CONFIG_PARTITIONS and CONFIG_HAVE_BLOCK_DEVICE set.  Protect the call to
this function with both of these tests now.

Cc: Simon Glass 
Cc: Philipp Tomsich 
Cc: Michal Simek 
Cc: York Sun 
Cc: Prabhakar Kushwaha 
Cc: Mingkai Hu 
Cc: Stefan Roese 
Cc: Marek Behún 
Cc: Vanessa Maegima 
Cc: Eugen Hristev 
Cc: Adam Ford 
Cc: Jagan Teki 
Cc: Tom Warren 
Cc: Stephen Warren 
Cc: Vitaly Andrianov 
Signed-off-by: Tom Rini 
Reviewed-by: Simon Glass

blk: Introduce IF_TYPE_VIRTIO

2018-11-14T17:16:27+00:00

This adds a new block interface type for VirtIO block devices.

Signed-off-by: Tuomas Tynkkynen 
Signed-off-by: Bin Meng 
Reviewed-by: Simon Glass

blk: Make blk_next_free_devnum() public

2018-11-14T17:16:27+00:00

blk_next_free_devnum() can be helpful in some cases. Make it
a public API.

Signed-off-by: Bin Meng 
Reviewed-by: Simon Glass

blk: Drop blk_prepare_device()

2018-11-14T17:16:27+00:00

With the post_probe() changes, this API is no longer needed.

Signed-off-by: Bin Meng 
Reviewed-by: Simon Glass

blk: Call part_init() in the post_probe() method

2018-11-14T17:16:27+00:00

part_init() is currently called in every DM BLK driver, either
in its bind() or probe() method. However we can use the BLK
uclass driver's post_probe() method to do it automatically.

Update all DM BLK drivers to adopt this change.

Signed-off-by: Bin Meng 
Reviewed-by: Simon Glass

block: Add a function to find block device descriptor

2018-09-29T00:22:33+00:00

Add a function to find the block device descriptor of the parent
device.

Signed-off-by: Tien Fong Chee 
[trini: Move function declaration to avoid warning]
Signed-off-by: Tom Rini

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07T13:34:12+00:00

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

SystemACE: Remove

2018-02-14T04:24:22+00:00

This driver is no longer used on any supported platform in U-Boot and
there is no interest in maintaining it further from people that have
used it historically.

Cc: Simon Glass 
Cc: Michal Simek 
c: Alexey Brodkin 
Signed-off-by: Tom Rini 
Acked-by: Michal Simek

efi_driver: EFI block driver

2018-01-22T22:09:14+00:00

This patch provides
* a uclass for EFI drivers
* a EFI driver for block devices

For each EFI driver the uclass
* creates a handle
* adds the driver binding protocol

The uclass provides the bind, start, and stop entry points for the driver
binding protocol.

In bind() and stop() it checks if the controller implements the protocol
supported by the EFI driver. In the start() function it calls the bind()
function of the EFI driver. In the stop() function it destroys the child
controllers.

The EFI block driver binds to controllers implementing the block io
protocol.

When the bind function of the EFI block driver is called it creates a
new U-Boot block device. It installs child handles for all partitions and
installs the simple file protocol on these.

The read and write functions of the EFI block driver delegate calls to the
controller that it is bound to.

A usage example is as following:

U-Boot loads the iPXE snp.efi executable. iPXE connects an iSCSI drive and
exposes a handle with the block IO protocol. It calls ConnectController.

Now the EFI block driver installs the partitions with the simple file
protocol.

iPXE uses the simple file protocol to load Grub or the Linux Kernel.

Signed-off-by: Heinrich Schuchardt 
[agraf: add comment on calloc len]
Signed-off-by: Alexander Graf

dm: blk: Use uclass_find_first/next_device() in blk_first/next_device()

2017-12-13T02:53:45+00:00

This patch changes the calls to uclass_first/next_device() in blk_first/
next_device() to use uclass_find_first/next_device() instead. These functions
don't prepare the devices, which is correct in this case.

With this patch applied, the "usb storage" command now works again as
expected:

=> usb storage
  Device 0: Vendor: SanDisk Rev: 1.00 Prod: Ultra
  Type: Removable Hard Disk
  Capacity: 58656.0 MB = 57.2 GB (120127488 x 512)

Without this patch, it used to generate this buggy output:

=> usb storage
Card did not respond to voltage select!
mmc_init: -95, time 26
No storage devices, perhaps not 'usb start'ed..?

Signed-off-by: Stefan Roese 
Suggested-by: Simon Glass 
Cc: Simon Glass 
Cc: Bin Meng 
Reviewed-by: Bin Meng 
Reviewed-by: Simon Glass