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| author | Bin Meng <bmeng.cn@gmail.com> | 2019-02-26 01:52:19 -0800 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2019-03-11 22:55:01 +0800 |
| commit | 7d0a53a40cee6e40c173b782f26f5a2317cf39b5 (patch) | |
| tree | 4bf997affe156ab4757df57f031ad500a0278b47 /drivers/i2c/i2c-cdns.c | |
| parent | d9b59fc9ae198785c1adce1462bd73ee56465d4e (diff) | |
x86: Make sure i8254 is setup correctly before generating beeps
The i8254 timer control IO port (0x43) should be setup correctly
by using PIT counter 2 to generate beeps, however in U-Boot other
codes like TSC driver utilizes PIT for TSC frequency calibration
and configures the counter 2 to a different mode that does not
beep. Fix this by always ensuring the PIT counter 2 is correctly
initialized so that the i8254 beeper driver works as expected.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/i2c/i2c-cdns.c')
0 files changed, 0 insertions, 0 deletions