u-boot.git/drivers/mtd/spi, branch v2016.09

sf: sf_params: Add AT25DF321 flash support

2016-07-29T18:45:00+00:00

Add AT25DF321 flash support.
Fix AT25DF321A device name.

Signed-off-by: Wenyou Yang 
Reviewed-by: Jagan Teki

spi: Add support for N25Q016A

2016-07-29T18:45:00+00:00

This commit adds support in the spi-nor driver for the
N25Q016A, a 16Mbit SPI NOR flash from Micron.

Signed-off-by: Moritz Fischer 
Reviewed-by: Jagan Teki

sunxi: Support booting from SPI flash

2016-07-15T06:34:34+00:00

Allwinner devices support SPI flash as one of the possible
bootable media type. The SPI flash chip needs to be connected
to SPI0 pins (port C) to make this work. More information is
available at:

    https://linux-sunxi.org/Bootable_SPI_flash

This patch adds the initial support for booting from SPI flash.
The existing SPI frameworks are not used in order to reduce the
SPL code size. Right now the SPL size grows by ~370 bytes when
CONFIG_SPL_SPI_SUNXI option is enabled.

While there are no popular Allwinner devices with SPI flash at
the moment, testing can be done using a SPI flash module (it
can be bought for ~2$ on ebay) and jumper wires with the boards,
which expose relevant pins on the expansion header. The SPI flash
chips themselves are very cheap (some prices are even listed as
low as 4 cents) and should not cost much if somebody decides to
design a development board with an SPI flash chip soldered on
the PCB.

Another nice feature of the SPI flash is that it can be safely
accessed in a device-independent way (since we know that the
boot ROM is already probing these pins during the boot time).
And if, for example, Olimex boards opted to use SPI flash instead
of EEPROM, then they would have been able to have U-Boot installed
in the SPI flash now and boot the rest of the system from the SATA
hard drive. Hopefully we may see new interesting Allwinner based
development boards in the future, now that the software support
for the SPI flash is in a better shape :-)

Testing can be done by enabling the CONFIG_SPL_SPI_SUNXI option
in a board defconfig, then building U-Boot and finally flashing
the resulting u-boot-sunxi-with-spl.bin binary over USB OTG with
a help of the sunxi-fel tool:

   sunxi-fel spiflash-write 0 u-boot-sunxi-with-spl.bin

The device needs to be switched into FEL (USB recovery) mode first.
The most suitable boards for testing are Orange Pi PC and Pine64.
Because these boards are cheap, have no built-in NAND/eMMC and
expose SPI0 pins on the Raspberry Pi compatible expansion header.
The A13-OLinuXino-Micro board also can be used.

Signed-off-by: Siarhei Siamashka 
Reviewed-by: Simon Glass 
Signed-off-by: Hans de Goede

driver: mtd: spi: Adding support for QSPI flash

2016-06-03T21:12:49+00:00

Serial number, vendor id and page size are added for QSPI flash
common on both LS1012AQDS and LS1012ARDB i.e. S25FS512SDSMFI011.

Signed-off-by: Pratiyush Mohan Srivastava 
Signed-off-by: Calvin Johnson 
Signed-off-by: Mingkai Hu 
Signed-off-by: Prabhakar Kushwaha 
Reviewed-by: York Sun

spl: Support loading a FIT from SPI

2016-05-27T19:41:40+00:00

Detect a FIT when loading from SPI and handle it using the
new FIT SPL support.

Reviewed-by: Tom Rini 
Signed-off-by: Lokesh Vutla

Merge branch 'master' of git://git.denx.de/u-boot-fsl-qoriq

2016-05-24T17:42:03+00:00

sf: Disable 4-KB erase command for SPANSION S25FS-S family

2016-05-18T15:51:24+00:00

The S25FS-S family physical sectors may be configured as a hybrid
combination of eight 4-kB parameter sectors at the top or bottom
of the address space with all but one of the remaining sectors
being uniform size.
The default status of the flash is in this hybrid architecture.
The parameter sectors and the uniform sectors have different erase
commands.
This patch disable the hybrid sector architecture then the flash will
has uniform sector size and uniform erase command.
This configuration is temporary, the flash will revert to hybrid
architecture after power on reset.

Signed-off-by: Yuan Yao 
Reviewed-by: York Sun

spi: fsl_qspi: Enable Spansion S25FS-S family flashes

2016-05-18T15:51:16+00:00

The flash type of LS2085AQDS QSPI is S25FS256S. It has special write
any device register command and read any device register command.
This patch enable support for those commands.

Signed-off-by: Yuan Yao 
Signed-off-by: Prabhakar Kushwaha 
Reviewed-by: York Sun

SPL: Let spl_parse_image_header() return value

2016-05-17T15:52:20+00:00

Allow the spl_parse_image_header() to return value. This is convenient
for controlling the SPL boot flow if the loaded image is corrupted.

Signed-off-by: Marek Vasut 
Cc: Fabio Estevam 
Cc: Peng Fan 
Cc: Stefano Babic 
Cc: Tom Rini

sf: fix timebase data type in _wait_ready()

2016-04-25T19:10:30+00:00

get_timer() returns an unsigned 64-bit value, but is currently assigned to
a signed 32-bit variable. Due to sign extension and data truncation, this
causes the timeout loop in spi_flash_cmd_wait_ready() to immediately (and
incorrectly) fire for about 50% of all time values, based on whether bit
31 is set. In sandbox at least, this causes the test to pass or fail based
on system uptime, as opposed to time since the U-Boot binary was started.

Fixes: 4efad20a1751 ("sf: Update status reg check in spi_flash_cmd_wait_ready")
Signed-off-by: Stephen Warren 
Reviewed-by: Tom Rini 
Reviewed-by: Jagan Teki