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0e92aec2ef
Add support SD Express card for GL9767. The workflow of the SD Express card in GL9767 is as below. 1. GL9767 operates in SD mode and set MMC_CAP2_SD_EXP flag. 2. If card is inserted, Host send CMD8 to ask the capabilities of the card. 3. If the card has PCIe capability, then init_sd_express() will be invoked. 4. If the card has been put in write protect state then the SD features supported by SD mode but not supported by PCIe mode, therefore GL9767 switch to SD mode. 5. If the card has not been put in write protect state then GL9767 switch from SD mode to PCIe/NVMe mode and mmc driver handover control to NVMe driver. 6. If card is removed, GL9767 will return to SD mode. Signed-off-by: Ben Chuang <ben.chuang@genesyslogic.com.tw> Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Link: https://lore.kernel.org/r/20230609071441.451464-5-victorshihgli@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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.