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| author | Andrew Turner <andrew@FreeBSD.org> | 2015-04-11 17:16:23 +0000 |
|---|---|---|
| committer | Andrew Turner <andrew@FreeBSD.org> | 2015-04-11 17:16:23 +0000 |
| commit | 405ada37fbdafaa6691a906f3630ba8d064e5f30 (patch) | |
| tree | 3242f4dc9f4677a166d03c3acecc2475385f4f3d /sys/dev/uart/uart_bus.h | |
| parent | 2574218578003321766b2bc85b3dc877308c0fe4 (diff) | |
| download | src-405ada37fbdafaa6691a906f3630ba8d064e5f30.tar.gz src-405ada37fbdafaa6691a906f3630ba8d064e5f30.zip | |
Add support for the uart classes to set their default register shift value.
This is needed with the pl011 driver. Before this change it would default
to a shift of 0, however the hardware places the registers at 4-byte
addresses meaning the value should be 2.
This patch fixes this for the pl011 when configured using the fdt. The
other drivers have a default value of 0 to keep this a no-op.
MFC after: 1 week
Notes
Notes:
svn path=/head/; revision=281438
Diffstat (limited to 'sys/dev/uart/uart_bus.h')
| -rw-r--r-- | sys/dev/uart/uart_bus.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/dev/uart/uart_bus.h b/sys/dev/uart/uart_bus.h index 322e9a85e023..7394651e841a 100644 --- a/sys/dev/uart/uart_bus.h +++ b/sys/dev/uart/uart_bus.h @@ -70,6 +70,7 @@ struct uart_class { struct uart_ops *uc_ops; /* Low-level console operations. */ u_int uc_range; /* Bus space address range. */ u_int uc_rclk; /* Default rclk for this device. */ + u_int uc_rshift; /* Default regshift for this device. */ }; struct uart_softc { |