tests: benchmarks: Test fast UART with different GD frequencies

Default GD frequency is 320MHz
Validate fast UART with 256, 128 and 64MHz

Signed-off-by: Bartosz Miller <[email protected]>

Author: nordic-bami

tests/benchmarks/multicore/idle_uarte/Kconfig

@@ -0,0 +1,32 @@
+#
+# Copyright (c) 2024 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+choice GLOBAL_DOMAIN_CLOCK_FREQUENCY_OPTION
+	prompt "Global domain clock frequency"
+	default GLOBAL_DOMAIN_CLOCK_FREQUENCY_OPTION_320MHZ
+
+config GLOBAL_DOMAIN_CLOCK_FREQUENCY_OPTION_320MHZ
+	bool "320MHz"
+
+config GLOBAL_DOMAIN_CLOCK_FREQUENCY_OPTION_256MHZ
+	bool "256MHz"
+
+config GLOBAL_DOMAIN_CLOCK_FREQUENCY_OPTION_128MHZ
+	bool "128MHz"
+
+config GLOBAL_DOMAIN_CLOCK_FREQUENCY_OPTION_64MHZ
+	bool "64MHz"
+
+endchoice
+
+config GLOBAL_DOMAIN_CLOCK_FREQUENCY_MHZ
+	int
+	default 320 if GLOBAL_DOMAIN_CLOCK_FREQUENCY_OPTION_320MHZ
+	default 256 if GLOBAL_DOMAIN_CLOCK_FREQUENCY_OPTION_256MHZ
+	default 128 if GLOBAL_DOMAIN_CLOCK_FREQUENCY_OPTION_128MHZ
+	default 64 if GLOBAL_DOMAIN_CLOCK_FREQUENCY_OPTION_64MHZ
+
+source "Kconfig.zephyr"

tests/benchmarks/multicore/idle_uarte/Kconfig.sysbuild

@@ -1,10 +1,11 @@
 #
-# Copyright (c) 2023 Nordic Semiconductor ASA
+# Copyright (c) 2024 Nordic Semiconductor ASA
 #
 # SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
 #
 
 source "${ZEPHYR_BASE}/share/sysbuild/Kconfig"
 
 config REMOTE_BOARD
-	string "The board used for remote target"
+	string
+	default "$(BOARD)/nrf54h20/cpurad" if SOC_NRF54H20_CPUAPP

tests/benchmarks/multicore/idle_uarte/src/main.c

@@ -9,6 +9,8 @@
 #include <zephyr/pm/device_runtime.h>
 #include <zephyr/kernel.h>
 #include <zephyr/logging/log.h>
+#include <zephyr/devicetree/clocks.h>
+#include <zephyr/drivers/clock_control/nrf_clock_control.h>
 
 /* Note: logging is normally disabled for this test
  * Enable only for debugging purposes
@@ -32,6 +34,39 @@ const uint8_t test_pattern[TEST_BUFFER_LEN] = {0x11, 0x12, 0x13, 0x14, 0x15,
 static uint8_t test_buffer[TEST_BUFFER_LEN];
 static volatile uint8_t uart_error_counter;
 
+#if defined(CONFIG_CLOCK_CONTROL)
+const struct nrf_clock_spec clk_spec_global_hsfll = {
+	.frequency = MHZ(CONFIG_GLOBAL_DOMAIN_CLOCK_FREQUENCY_MHZ)
+};
+
+/*
+ * Set Global Domain frequency (HSFLL120)
+ * based on: CONFIG_GLOBAL_DOMAIN_CLOCK_FREQUENCY_MHZ
+ */
+void set_global_domain_frequency(void)
+{
+	int err;
+	int res;
+	struct onoff_client cli;
+	const struct device *hsfll_dev = DEVICE_DT_GET(DT_NODELABEL(hsfll120));
+
+	printk("Requested frequency [Hz]: %d\n", clk_spec_global_hsfll.frequency);
+	sys_notify_init_spinwait(&cli.notify);
+	err = nrf_clock_control_request(hsfll_dev, &clk_spec_global_hsfll, &cli);
+	printk("Return code: %d\n", err);
+	__ASSERT_NO_MSG(err < 3);
+	__ASSERT_NO_MSG(err >= 0);
+	do {
+		err = sys_notify_fetch_result(&cli.notify, &res);
+		k_yield();
+	} while (err == -EAGAIN);
+	printk("Clock control request return value: %d\n", err);
+	printk("Clock control request response code: %d\n", res);
+	__ASSERT_NO_MSG(err == 0);
+	__ASSERT_NO_MSG(res == 0);
+}
+#endif /* CONFIG_CLOCK_CONTROL */
+
 /*
  * Callback function for UART async transmission
  */
@@ -110,6 +145,11 @@ int main(void)
 					       .data_bits = UART_CFG_DATA_BITS_8,
 					       .flow_ctrl = UART_CFG_FLOW_CTRL_RTS_CTS};
 
+#if defined(CONFIG_CLOCK_CONTROL)
+	k_msleep(1000);
+	set_global_domain_frequency();
+#endif
+
 	printk("Hello World! %s\n", CONFIG_BOARD_TARGET);
 	printk("UART instance: %s\n", uart_dev->name);
 

tests/benchmarks/multicore/idle_uarte/sysbuild/nrf54h20dk_nrf54h20_cpurad.conf

@@ -11,7 +11,6 @@ tests:
     integration_platforms:
       - nrf54h20dk/nrf54h20/cpuapp
     extra_args:
-      - SB_CONF_FILE=sysbuild/nrf54h20dk_nrf54h20_cpurad.conf
       - DTC_OVERLAY_FILE="boards/nrf54h20dk_nrf54h20_cpuapp_normal.overlay"
     harness_config:
       fixture: gpio_loopback
@@ -25,21 +24,64 @@ tests:
     integration_platforms:
       - nrf54h20dk/nrf54h20/cpuapp
     extra_args:
-      - SB_CONF_FILE=sysbuild/nrf54h20dk_nrf54h20_cpurad.conf
       - DTC_OVERLAY_FILE="boards/nrf54h20dk_nrf54h20_cpuapp_fast.overlay"
     harness_config:
       fixture: gpio_loopback
       pytest_root:
         - "${CUSTOM_ROOT_TEST_DIR}/test_measure_power_consumption.py::test_measure_and_data_dump_power_consumption_uarte"
 
+  benchmarks.multicore.idle_uarte.fast.gd_freq_256MHz.nrf54h20dk_cpuapp_cpurad.s2ram:
+    harness: pytest
+    platform_allow:
+      - nrf54h20dk/nrf54h20/cpuapp
+    integration_platforms:
+      - nrf54h20dk/nrf54h20/cpuapp
+    extra_args:
+      - DTC_OVERLAY_FILE="boards/nrf54h20dk_nrf54h20_cpuapp_fast.overlay"
+      - CONFIG_CLOCK_CONTROL=y
+      - CONFIG_GLOBAL_DOMAIN_CLOCK_FREQUENCY_OPTION_256MHZ=y
+    harness_config:
+      fixture: gpio_loopback
+      pytest_root:
+        - "${CUSTOM_ROOT_TEST_DIR}/test_measure_power_consumption.py::test_measure_and_data_dump_power_consumption_uarte"
+
+  benchmarks.multicore.idle_uarte.fast.gd_freq_128MHz.nrf54h20dk_cpuapp_cpurad.s2ram:
+    harness: pytest
+    platform_allow:
+      - nrf54h20dk/nrf54h20/cpuapp
+    integration_platforms:
+      - nrf54h20dk/nrf54h20/cpuapp
+    extra_args:
+      - DTC_OVERLAY_FILE="boards/nrf54h20dk_nrf54h20_cpuapp_fast.overlay"
+      - CONFIG_CLOCK_CONTROL=y
+      - CONFIG_GLOBAL_DOMAIN_CLOCK_FREQUENCY_OPTION_128MHZ=y
+    harness_config:
+      fixture: gpio_loopback
+      pytest_root:
+        - "${CUSTOM_ROOT_TEST_DIR}/test_measure_power_consumption.py::test_measure_and_data_dump_power_consumption_uarte"
+
+  benchmarks.multicore.idle_uarte.fast.gd_freq_64MHz.nrf54h20dk_cpuapp_cpurad.s2ram:
+    harness: pytest
+    platform_allow:
+      - nrf54h20dk/nrf54h20/cpuapp
+    integration_platforms:
+      - nrf54h20dk/nrf54h20/cpuapp
+    extra_args:
+      - DTC_OVERLAY_FILE="boards/nrf54h20dk_nrf54h20_cpuapp_fast.overlay"
+      - CONFIG_CLOCK_CONTROL=y
+      - CONFIG_GLOBAL_DOMAIN_CLOCK_FREQUENCY_OPTION_64MHZ=y
+    harness_config:
+      fixture: gpio_loopback
+      pytest_root:
+        - "${CUSTOM_ROOT_TEST_DIR}/test_measure_power_consumption.py::test_measure_and_data_dump_power_consumption_uarte"
+
   benchmarks.multicore.idle_uarte.automatic_pm.nrf54h20dk_cpuapp_cpurad.s2ram:
     harness: pytest
     platform_allow:
       - nrf54h20dk/nrf54h20/cpuapp
     integration_platforms:
       - nrf54h20dk/nrf54h20/cpuapp
     extra_args:
-      - SB_CONF_FILE=sysbuild/nrf54h20dk_nrf54h20_cpurad.conf
       - DTC_OVERLAY_FILE="boards/nrf54h20dk_nrf54h20_cpuapp_normal.overlay"
       - CONFIG_PRINTK=y
       - CONFIG_LOG=y