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| author | Angelo Butti <buttiangelo@gmail.com> | 2016-11-07 16:39:03 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-03-23 13:19:50 +0100 |
| commit | a3a6508555da167499850ae52ac3c3326ce1e682 (patch) | |
| tree | 563daddc44f0129879cc8a610e232dbf44f7d57e /kernel | |
| parent | 0cfe11635803a65c7f80ed2d6ea909329d1f9e6f (diff) | |
8250: FIX Fourth port offset of Pericom PI7C9X7954 boards
commit 5c31ef91c06db7800ad573174bd92be4df34ecb2 upstream.
Hi,
below patch to fix Fourth port offset of Percom PI7C9X7954 boards.
I had a problem using Fourth port on a pci express serial board based on Pericom
PI7C9X7954. Reading datasheet I notice a "special" offset assign to this port
when used in I/O mode.
Offset 0x0 -> UART 0
Offset 0x8 -> UART 1
Offset 0x10 -> UART 2
Offset 0x38 -> UART 3 <<---- This don't follow a logical sequence
This patch add a different init to last port, to have right offset.
I check also Pericom 7952 and 7958 but that devices follow logical sequence,
so they are ok.
Regards,
Angelo
Signed-off-by: Angelo Butti <buttiangelo@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions