libpayload/libc/console: Flush input driver buffer on init
When console input driver registers itself, perform flush of input buffer to avoid interpreting any stale key presses before libpayload is run. keyboard.c: Remove the redundant buffer flush. 8250.c: Ensure that serial_hardware_is_present is set before call to add input driver. BUG=b:37273808 TEST=Verified that any key presses in serial console before payload is up do not have any effect after the payload starts running. Change-Id: I46f1b6715ccf6418f5b2c741bf90db2ece26a60d Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/19345 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Furquan Shaikh
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22b22b6988
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342f5f836c
@@ -310,9 +310,6 @@ void keyboard_init(void)
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if (inb(0x64) == 0xFF)
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return;
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/* Empty keyboard buffer */
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while (keyboard_havechar()) keyboard_getchar();
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console_add_input_driver(&cons);
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}
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