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| author | Philipp Zabel <p.zabel@pengutronix.de> | 2013-06-21 15:36:11 +0200 |
|---|---|---|
| committer | Shawn Guo <shawn.guo@linaro.org> | 2013-07-15 08:28:05 +0800 |
| commit | f5786b8e934e77f76f689c515baa582ff5a196ec (patch) | |
| tree | 15cf3ca319a4adce435134b7ef41fc547c9c2876 /Documentation | |
| parent | ad81f0545ef01ea651886dddac4bef6cec930092 (diff) | |
| download | op-kernel-dev-f5786b8e934e77f76f689c515baa582ff5a196ec.zip op-kernel-dev-f5786b8e934e77f76f689c515baa582ff5a196ec.tar.gz | |
ARM i.MX53: Fix UART pad configuration
The current default pad configuration for UART RX and TX pads sets a 360k
pull-down and writes 1 to a reserved bit (1 << 0). It doesn't seem right to
me that in idle state, the UART has to keep the signal high against a
pull-down resistor.
This patch instead sets a 100k pull-up, which incidentally corresponds to the
register reset value for all but one (MX53_PAD_KEY_ROW0__UART4_RXD_MUX) pad,
and removes the write to the reserved bit.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions
