diff options
| author | Heikki Krogerus <[email protected]> | 2013-03-06 11:23:33 +0100 |
|---|---|---|
| committer | Jason Cooper <[email protected]> | 2013-03-08 22:03:44 +0000 |
| commit | e366154f70c54dee3665d1c0f780007e514412f3 (patch) | |
| tree | 63da6295904962b3efb9b5e322b9364647e2dca6 /lib/mpi/mpi-internal.h | |
| parent | 85c0c13dcdbb2d7cb375e6ace711e3655dd7a4dd (diff) | |
arm: mvebu: Reduce reg-io-width with UARTs
Setting the reg-io-width to 1 byte represents more accurate
description of the HW.
This will fix an issue where UART driver causes kernel
panic during bootup. Gregory CLEMENT traced the issue to
autoconfig() in 8250.c, where the existence of FIFO is
checked from UART_IIR register. The register is now read as
32-bit value as the reg-io-width is set to 4-bytes. The
retuned value seems to contain bogus data for bits 31:8,
causing the issue.
Signed-off-by: Heikki Krogerus <[email protected]>
Cc: Gregory CLEMENT <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Tested-by: Gregory CLEMENT <[email protected]>
Acked-by: Gregory CLEMENT <[email protected]>
Tested-by: Masami Hiramatsu <[email protected]>
Tested-by: Thomas Petazzoni <[email protected]>
Signed-off-by: Jason Cooper <[email protected]>
Diffstat (limited to 'lib/mpi/mpi-internal.h')
0 files changed, 0 insertions, 0 deletions