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Documentation / MTD: Rename the intel-spi driver

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Since the driver is renamed (and moved) update the BIOS upgrade guide
accordingly from intel-spi to spi-intel. Keep the guide under MTD
documentation because this is pretty much still about MTD and SPI-NOR.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mauro Lima <mauro.lima@eclypsium.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20220209122706.42439-4-mika.westerberg@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Mika Westerberg 2022-02-09 15:27:06 +03:00 committed by Mark Brown
parent e23e5a05d1
commit 4ab1348973
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2 changed files with 5 additions and 5 deletions
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2
Documentation/driver-api/mtd/index.rst
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@ -7,6 +7,6 @@ Memory Technology Device (MTD)
.. toctree:: .. toctree::
:maxdepth: 1 :maxdepth: 1
intel-spi spi-intel
nand_ecc nand_ecc
spi-nor spi-nor

8
Documentation/driver-api/mtd/intel-spi.rst → Documentation/driver-api/mtd/spi-intel.rst
View File

@ -1,5 +1,5 @@
============================== ==============================
Upgrading BIOS using intel-spi Upgrading BIOS using spi-intel
============================== ==============================
Many Intel CPUs like Baytrail and Braswell include SPI serial flash host Many Intel CPUs like Baytrail and Braswell include SPI serial flash host
@ -11,12 +11,12 @@ avoid accidental (or on purpose) overwrite of the content.
Not all manufacturers protect the SPI serial flash, mainly because it Not all manufacturers protect the SPI serial flash, mainly because it
allows upgrading the BIOS image directly from an OS. allows upgrading the BIOS image directly from an OS.
The intel-spi driver makes it possible to read and write the SPI serial The spi-intel driver makes it possible to read and write the SPI serial
flash, if certain protection bits are not set and locked. If it finds flash, if certain protection bits are not set and locked. If it finds
any of them set, the whole MTD device is made read-only to prevent any of them set, the whole MTD device is made read-only to prevent
partial overwrites. By default the driver exposes SPI serial flash partial overwrites. By default the driver exposes SPI serial flash
contents as read-only but it can be changed from kernel command line, contents as read-only but it can be changed from kernel command line,
passing "intel-spi.writeable=1". passing "spi_intel.writeable=1".
Please keep in mind that overwriting the BIOS image on SPI serial flash Please keep in mind that overwriting the BIOS image on SPI serial flash
might render the machine unbootable and requires special equipment like might render the machine unbootable and requires special equipment like
@ -32,7 +32,7 @@ Linux.
serial flash. Distros like Debian and Fedora have this prepackaged with serial flash. Distros like Debian and Fedora have this prepackaged with
name "mtd-utils". name "mtd-utils".
3) Add "intel-spi.writeable=1" to the kernel command line and reboot 3) Add "spi_intel.writeable=1" to the kernel command line and reboot
the board (you can also reload the driver passing "writeable=1" as the board (you can also reload the driver passing "writeable=1" as
module parameter to modprobe). module parameter to modprobe).