u-boot.git/include/spi.h, branch v2015.07

spi/sf: Minor cleanups

2015-07-01T15:45:03+00:00

- Adjust tab spaces
- Add comments

Signed-off-by: Jagan Teki

dm: spi: Correct the comment on spi_get_ops()

2015-05-06T02:58:19+00:00

This comment should refer to SPI, not serial.

Signed-off-by: Simon Glass 
Reviewed-by: Jagannadha Sutradharudu Teki

dm: spi: Avoid setting the speed with every transfer

2015-05-06T02:58:18+00:00

Only set the speed if it has changed from last time. Since the speed will
be 0 when the device is probed it will always be changed on the first
transfer after the device is probed.

Signed-off-by: Simon Glass

dm: spi: Correct SPI claim/release_bus() methods

2015-04-23T09:53:45+00:00

These methods should be passed a slave device, not a bus. This matches the
old SPI interface. It is important to know which device is claiming the bus
so passing a bus is not that useful.

Reported-by: Haikun Wang 
Signed-off-by: Simon Glass 
Tested-by: Peng Fan 
Reviewed-by: Jagannadha Sutradharudu Teki

sf: Correct the macros as per new array fast read command

2015-04-22T11:19:51+00:00

Correct the macros as per insertion of array fast read
command CMD_READ_ARRAY_FAST in spi_read_cmds_array in file
sf_probe.c

Signed-off-by: Siva Durga Prasad Paladugu 
Reviewed-by: Jagannadha Sutradharudu Teki

dm: spi: Move slave details to child platdata

2015-01-30T00:09:56+00:00

At present we go through various contortions to store the SPI slave's chip
select in its private data. This only exists when the slave is active so
must be set up when it is probed. Until the device is probed we don't
actually know what chip select it will appear on.

However, now that we can support per-child platform data, we can use that
instead. This allows us to set up the chip select when the child is bound,
and avoid the messy contortions.

Unfortunately this is a fairly large change and it seems to be difficult to
break it down further.

Signed-off-by: Simon Glass

sf: Enable byte program support

2014-12-13T22:08:04+00:00

Enabled byte program support for sst flashes in sf.

Few controllers will only support BP, so this patch gives
a tx transfer flag to set the BP so-that sf will operate
on byte program transfer.

A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI
controller to use byte program op for SST flash.

Signed-off-by: Jagannadha Sutradharudu Teki 
Tested-by: Bin Meng

dm: spi: Use device_bind_driver() instead of our own function

2014-11-22T09:16:48+00:00

The SPI function does the same thing, so we may as well just use the new
generic function. The 'cs' parameter was not actually used, so can be
dropped.

Signed-off-by: Simon Glass 
Reviewed-by: Jagannadha Sutradharudu Teki 
Acked-by: Heiko Schocher

dm: spi: Correct handling of SPI chip selects in sandbox

2014-11-22T09:16:47+00:00

This code was not updated when the chip select handling was adjusted. Fix
it to call the correct function.

Signed-off-by: Simon Glass 
Reviewed-by: Jagannadha Sutradharudu Teki 
Acked-by: Heiko Schocher

dm: sandbox: Add a SPI emulation uclass

2014-10-22T16:36:46+00:00

U-Boot includes a SPI emulation driver already but it is not explicit, and
is hidden in the SPI flash code.

Conceptually with sandbox's SPI implementation we have a layer which
creates SPI bus transitions and a layer which interprets them, currently
only for SPI flash. The latter is actually an emulation, and it should be
possible to add more than one emulation - not just SPI flash.

Add a SPI emulation uclass so that other emulations can be plugged in to
support different types of emulated devices on difference buses/chip
selects.

Signed-off-by: Simon Glass 
Reviewed-by: Jagannadha Sutradharudu Teki