From 4a9ca270601e9711a95c1193a04d41ca469d2c1f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Sebastian=20G=C5=82=C4=85b?= Date: Tue, 2 Jul 2024 10:37:32 +0200 Subject: [PATCH] samples: drivers: mbox: Disable UART Flow Control on nrf54h20 and nrf54l15 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Nrf54h20dk and nrf54l15 have UART Flow Control enabled by default on all cores. It's a source of problem when mbox sample is run in Twister. Twister opens serial port only on host core, thus nobody confirms reception of logs from remote core. As a result, remote core stucks on printing boot banner. Twister fails sample due to the timeout while waiting for messages from remote to host. Disable Flow Control on remote core when mbox sample is executed on nrf54h20 or nrf54l15. Signed-off-by: Sebastian Głąb --- .../mbox/remote/boards/nrf54h20dk_nrf54h20_cpuapp.overlay | 4 ++++ .../mbox/remote/boards/nrf54h20dk_nrf54h20_cpuppr.overlay | 4 ++++ .../mbox/remote/boards/nrf54l15pdk_nrf54l15_cpuflpr.overlay | 4 ++++ .../remote/boards/nrf54l15pdk_nrf54l15_cpuflpr_xip.overlay | 4 ++++ 4 files changed, 16 insertions(+) diff --git a/samples/drivers/mbox/remote/boards/nrf54h20dk_nrf54h20_cpuapp.overlay b/samples/drivers/mbox/remote/boards/nrf54h20dk_nrf54h20_cpuapp.overlay index 899a7cb40a7..a3ee9c3e060 100644 --- a/samples/drivers/mbox/remote/boards/nrf54h20dk_nrf54h20_cpuapp.overlay +++ b/samples/drivers/mbox/remote/boards/nrf54h20dk_nrf54h20_cpuapp.overlay @@ -18,3 +18,7 @@ &cpurad_bellboard { status = "okay"; }; + +&uart136 { + /delete-property/ hw-flow-control; +}; diff --git a/samples/drivers/mbox/remote/boards/nrf54h20dk_nrf54h20_cpuppr.overlay b/samples/drivers/mbox/remote/boards/nrf54h20dk_nrf54h20_cpuppr.overlay index 049f2432695..2ad53d26177 100644 --- a/samples/drivers/mbox/remote/boards/nrf54h20dk_nrf54h20_cpuppr.overlay +++ b/samples/drivers/mbox/remote/boards/nrf54h20dk_nrf54h20_cpuppr.overlay @@ -18,3 +18,7 @@ &cpuppr_vevif { status = "okay"; }; + +&uart135 { + /delete-property/ hw-flow-control; +}; diff --git a/samples/drivers/mbox/remote/boards/nrf54l15pdk_nrf54l15_cpuflpr.overlay b/samples/drivers/mbox/remote/boards/nrf54l15pdk_nrf54l15_cpuflpr.overlay index cf232439953..20ce53cf824 100644 --- a/samples/drivers/mbox/remote/boards/nrf54l15pdk_nrf54l15_cpuflpr.overlay +++ b/samples/drivers/mbox/remote/boards/nrf54l15pdk_nrf54l15_cpuflpr.overlay @@ -18,3 +18,7 @@ &cpuflpr_vevif_tx { status = "okay"; }; + +&uart30 { + /delete-property/ hw-flow-control; +}; diff --git a/samples/drivers/mbox/remote/boards/nrf54l15pdk_nrf54l15_cpuflpr_xip.overlay b/samples/drivers/mbox/remote/boards/nrf54l15pdk_nrf54l15_cpuflpr_xip.overlay index cf232439953..20ce53cf824 100644 --- a/samples/drivers/mbox/remote/boards/nrf54l15pdk_nrf54l15_cpuflpr_xip.overlay +++ b/samples/drivers/mbox/remote/boards/nrf54l15pdk_nrf54l15_cpuflpr_xip.overlay @@ -18,3 +18,7 @@ &cpuflpr_vevif_tx { status = "okay"; }; + +&uart30 { + /delete-property/ hw-flow-control; +};