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132f2d45fb
D_CAN controller supports 16, 32, 64 or 128 message objects, comparing to 32 on C_CAN. AM335x/AM437x Sitara processors and DRA7 SOC all instantiate a D_CAN controller with 64 message objects, as described in the "DCAN features" subsection of the CAN chapter of their technical reference manuals. The driver policy has been kept unchanged, and as in the previous version, the first half of the message objects is used for reception and the second for transmission. The I/O load is increased only in the case of 64 message objects, keeping it unchanged in the case of 32. Two 32-bit read accesses are in fact required, which however remained at 16-bit for configurations with 32 message objects. Link: https://lore.kernel.org/r/20210302215435.18286-7-dariobin@libero.it Signed-off-by: Dario Binacchi <dariobin@libero.it> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> |
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| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
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| Makefile | ||
| README | ||
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.