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| author | Tong Ho <tong.ho@amd.com> | 2024-02-26 21:48:55 -0800 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2024-03-05 13:22:55 +0000 |
| commit | f576e0733ccb023cde94acc7897c78a4871a09d0 (patch) | |
| tree | 41502e18b2221d61f0ded054c0ae54ef0259eb74 /hw/arm/stm32l4x5_soc.c | |
| parent | 0820e097fa844b13e9246c1210b89265a0e0cc5b (diff) | |
| download | focaccia-qemu-f576e0733ccb023cde94acc7897c78a4871a09d0.tar.gz focaccia-qemu-f576e0733ccb023cde94acc7897c78a4871a09d0.zip | |
hw/char/pl011: Add support for loopback
This patch adds loopback for sent characters, sent BREAK, and modem-control signals. Loopback of send and modem-control is often used for uart self tests in real hardware but missing from current pl011 model, resulting in self-test failures when running in QEMU. This implementation matches what is observed in real pl011 hardware placed in loopback mode: 1. Input characters and BREAK events from serial backend are ignored, but 2. Both TX characters and BREAK events are still sent to serial backend, in addition to be looped back to RX. Signed-off-by: Tong Ho <tong.ho@amd.com> Signed-off-by: Francisco Iglesias <francisco.iglesias@amd.com> Message-id: 20240227054855.44204-1-tong.ho@amd.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/arm/stm32l4x5_soc.c')
0 files changed, 0 insertions, 0 deletions