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author | Max Filippov <jcmvbkbc@gmail.com> | 2015-09-22 12:20:32 (GMT) |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-04 18:11:05 (GMT) |
commit | d215d80957ce98c318064c249ad0b7800c63a19d (patch) | |
tree | da8d0de101959f318a438d9e4924c39b4c6ffbd0 /drivers/tty/serial/icom.c | |
parent | 616ea8d2d644b93ec634a3cb97e04f1ec3b0a491 (diff) | |
download | linux-d215d80957ce98c318064c249ad0b7800c63a19d.tar.xz |
serial_core: support native endianness
There are three natural ways in which devices may be wired to the system:
little endian (device receives correctly ordered bits of a word written
by little-endian CPU to its register, but big-endian CPU needs to swap
bytes of a word before writing it), big endian (same, but with big-endian
CPU in more favourable position) and native endian (CPU of either
endianness may do word-sized I/O without need for byteswapping).
Adding an option for native endianness allows using single kernel command
line for boards with native-endian serial ports on bi-endian
architectures. This goes in parallel with 'native-endian' DTS attribute.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/icom.c')
0 files changed, 0 insertions, 0 deletions