mirror of
https://github.com/hardkernel/linux.git
synced 2026-06-05 18:41:58 +09:00
ff538ea7f5
With CMDQ enabled, issuing a DCMD as the last command before disabling CMDQ causes the eMMC controller to auto-gate its internal clock. The state machine mismatch after exiting CMDQ mode triggers data-timeout errors on all subsequent reads and writes, so the auto-clock-gate function must be disabled whenever CMDQ is enabled. log: mmc2: Timeout waiting for hardware interrupt. mmc2: sdhci: ============ SDHCI REGISTER DUMP =========== mmc2: sdhci: Sys addr: 0x00000001 | Version: 0x00000005 mmc2: sdhci: Blk size: 0x00007200 | Blk cnt: 0x00000000 Signed-off-by: Yifeng Zhao <yifeng.zhao@rock-chips.com> Change-Id: Ibafa74fc2db29b841b5b4df21ef484478f96a44e
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.