u-boot.git/include/spi_flash.h, branch v2020.07

sf: Drop spl_flash_get_sw_write_prot

2020-06-01T12:25:24+00:00

The get_sw_write_prot API is used to get the write-protected
bits of flash by reading the status register and other wards
it's API for reading register bits.

1) This kind of requirement can be achieved using existing
   flash operations and flash locking API calls instead of
   making a separate flash API.
2) Technically there is no real hardware user for this API to
   use in the source tree.
3) Having a flash operations API for simple register read bits
   also make difficult to extend the flash operations.
4) Instead of touching generic code, it is possible to have
   this functionality inside spinor operations in the form of
   flash hooks or fixups for associated flash chips.

Considering all these points, this patch drops the get_sw_write_prot
and associated code bases.

Cc: Simon Glass 
Cc: Vignesh R 
Signed-off-by: Jagan Teki

mtd: spi: Export spi_flash_std_probe()

2019-12-15T03:44:24+00:00

With of-platdata we need to create drivers for particular chips, or at
least drivers that are separate from the standard code, since C structures
are created by dtoc which are private to that driver.

To avoid duplicating the probing code, export this probe function for use
by these drivers.

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

Convert CONFIG_ENV_SPI_* to Kconfig

2019-03-25T21:36:59+00:00

This converts the following to Kconfig:
  CONFIG_ENV_SPI_BUS
  CONFIG_ENV_SPI_CS
  CONFIG_ENV_SPI_MAX_HZ
  CONFIG_ENV_SPI_MODE

Most of time these value are not needed, CONFIG_SF_DEFAULT
with same value is used, so I introduced CONFIG_USE_ENV_SPI_*
to force the associated value for the environment.

Signed-off-by: Patrick Delaunay

Convert CONFIG_SF_DEFAULT_* to Kconfig

2019-03-25T21:36:53+00:00

This converts the following to Kconfig:
  CONFIG_SF_DEFAULT_BUS
  CONFIG_SF_DEFAULT_CS
  CONFIG_SF_DEFAULT_MODE
  CONFIG_SF_DEFAULT_SPEED

I use moveconfig script and then manual check on generated u-boot.cfg
to solve the remaining issue.

Signed-off-by: Patrick Delaunay

mtd: spi: Switch to new SPI NOR framework

2019-02-07T10:03:21+00:00

Switch spi_flash_* interfaces to call into new SPI NOR framework via MTD
layer. Fix up sf_dataflash to work in legacy way. And update sandbox to
use new interfaces/definitions

Signed-off-by: Vignesh R 
Tested-by: Simon Goldschmidt 
Tested-by: Stefan Roese 
Tested-by: Horatiu Vultur 
Reviewed-by: Jagan Teki 
Tested-by: Jagan Teki  #zynq-microzed

sf: Add a method to obtain the block-protect setting

2018-11-21T02:14:22+00:00

It is useful to obtain the block-protect setting of the SPI flash, so we
know whether it is fully open or (perhaps partially) write-protected. Add
a method for this. Update the sandbox driver to process this operation and
add a test.

Signed-off-by: Simon Glass

dm: spi: Update sandbox SPI emulation driver to use ofnode

2018-07-09T15:11:00+00:00

Update the parameters sandbox_sf_bind_emul to support livetree.

Signed-off-by: Simon Glass

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

spi: Remove spi_flash_probe_fdt

2018-01-24T06:34:07+00:00

Commit ba45756 ("dm: x86: spi: Convert ICH SPI driver to driver model")
removed the last usage of the spi_flash_probe_fdt function, rendering it
obsolete.

This patch removes the function.

Reviewed-by: Simon Glass 
Reviewed-by: Jagan Teki 
Signed-off-by: Mario Six

spi: Move freescale-specific code into a private header

2016-10-06T19:07:35+00:00

At present there are two SPI functions only used by freescale which are
defined in the spi_flash.h header. One function name matches an existing
generic SPL function.

Move these into a private header to avoid confusion.

Arcturus looks like it does not actually support SPI, so drop the SPI code
from that board.

Signed-off-by: Simon Glass 
Reviewed-by: Tom Rini