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57cfb0aba2
Tegra234 boards use a mixture of aliases for the SD/MMC hardware blocks, which can lead to confusion. A common method was to use mmc3 as the alias for the eMMC because "SDMMC3" happens to be the name of the corresponding controller in the reference manual. This isn't a great choice because there is no hardware named SDMMC0, so the mmc0 alias would never get used with that nomenclature and in fact mmc1 and mmc2 wouldn't either in many configurations, thereby creating weird discontiguous enumeration. Instead of trying to match the aliases to the hardware block names, use mmc0 to denote the device's primary SD/MMC controller (typically eMMC) and mmc1 for the secondary SD/MMC controller (typically removable SD). In cases where eMMC is the only controller we can omit the mmc1 alias and if a device has no eMMC, the removable SD card can be aliased to mmc0 instead. Co-developed-by: Russell Xiao <russellx@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.