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| author | Jongsung Kim <neidhard.kim@lge.com> | 2013-05-29 22:07:39 -0600 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2013-06-02 11:50:41 -0700 |
| commit | 13731d862cf5219216533a3b0de052cee4cc5038 (patch) | |
| tree | 9717cd08378c708b4c03af3206bdc9e6ffa32ae8 /block/genhd.c | |
| parent | 04b5e56fc31bac04517ba7fc801736ba99088082 (diff) | |
| download | linux-13731d862cf5219216533a3b0de052cee4cc5038.tar.bz2 | |
ARM: bcm2835: override the HW UART periphid
Stephen Warren reported the recent commit 78506f2 (add support for
extended FIFO-size of PL011-r1p5) breaks the serial port on the
BCM2835 ARM SoC.
A UART compatible with the ARM PL011-r1p5 should have 32-deep FIFOs.
The BCM2835 UART just looks like an ARM PL011-r1p5, but has 16-deep
FIFOs just like PL011-r1p4 or earlier revisions. As a workaround for
this compatibility issue, this patch overrides the HW UART periphid
register values with the actually compatible UART periphid 0x00241011
(r1p3 or r1p4).
Reported-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Jongsung Kim <neidhard.kim@lge.com>
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'block/genhd.c')
0 files changed, 0 insertions, 0 deletions