[chip-test] Failing UART Tests due to configuring UART1 pins from IOB4,B5 pins to IOA0,A1 pins

Test point name

//sw/device/tests/uart_baud_rate_test

Host side component

Rust

OpenTitanTool infrastructure implemented

Yes

Silicon Validation (SiVal)

Yes

Emulation Targets

• None
• CW310
• Hyperdebug + CW310

Contact person

rprakas-gsc

Checklist

Please fill out this checklist as items are completed. Link to PRs and issues as appropriate.

• Check if existing test covers most or all of this testpoint (if so, either extend said test to cover all points, or skip the next 3 checkboxes)
• Device-side (C) component developed
• Bazel build rules developed
• Host-side component developed
• HJSON test plan updated with test name (so it shows up in the dashboard)
• Test added to dvsim nightly regression (and passing at time of checking)
• [x ] For SiVal test cases, test is running relevant FPGA or silicon regression

The following UART tests are failing - as soon as I reconfigure the pinmuxchannelDUT from Iob4/Iob5 pins to Ioa0/Ioa1 pins
[kUartPinmuxChannelDut] = { .mio_out = kTopEarlgreyPinmuxMioOutIob5, .insel = kTopEarlgreyPinmuxInselIob4,

//sw/device/tests/uart_baud_rate_test_silicon_owner_gb_rom_ext
//sw/device/tests/uart_loopback_test_silicon_owner_gb_rom_ext

The test failure is attributed to the timeout due to the host not receiving any data from DUT.