drivers: clock: esp32: fix ROM baudrate

Allow to update ROM Uart baudrate each time the clocks are reconfigured. Signed-off-by: Marek Matej <[email protected]>
zephyrproject-rtos · Jun 5, 2024 · 3f13d22 · 3f13d22
1 parent dd7a13a
commit 3f13d22
Showing 1 changed file with 5 additions and 9 deletions.
diff --git a/drivers/clock_control/clock_control_esp32.c b/drivers/clock_control/clock_control_esp32.c
@@ -619,7 +619,12 @@ static int esp32_cpu_clock_configure(const struct esp32_cpu_clock_config *cpu_cf
 	esp_cpu_set_cycle_count((uint64_t)esp_cpu_get_cycle_count() * rtc_clk_cfg.cpu_freq_mhz /
 				old_config.freq_mhz);
 
+#if ESP_ROM_UART_CLK_IS_XTAL
+	uart_clock_src_hz = (uint32_t)rtc_clk_xtal_freq_get() * MHZ(1);
+#else
 	uart_clock_src_hz = esp_clk_apb_freq();
+#endif
+
 #if !defined(ESP_CONSOLE_UART_NONE)
 	esp_rom_uart_set_clock_baudrate(ESP_CONSOLE_UART_NUM, uart_clock_src_hz,
 					ESP_CONSOLE_UART_BAUDRATE);
@@ -666,7 +671,6 @@ static int clock_control_esp32_init(const struct device *dev)
 	soc_reset_reason_t rst_reas;
 	rtc_config_t rtc_cfg = RTC_CONFIG_DEFAULT();
 	bool ret;
-	uint32_t uart_clock_src_hz;
 
 	rst_reas = esp_rom_get_reset_reason(0);
 #if !defined(CONFIG_SOC_SERIES_ESP32)
@@ -686,14 +690,6 @@ static int clock_control_esp32_init(const struct device *dev)
 		return ret;
 	}
 
-#if defined(CONFIG_SOC_SERIES_ESP32S3)
-	uart_clock_src_hz = (uint32_t)rtc_clk_xtal_freq_get() * MHZ(1);
-#if !defined(ESP_CONSOLE_UART_NONE)
-	esp_rom_uart_set_clock_baudrate(ESP_CONSOLE_UART_NUM, uart_clock_src_hz,
-					ESP_CONSOLE_UART_BAUDRATE);
-#endif
-#endif
-
 	rtc_clk_fast_src_set(cfg->rtc.rtc_fast_clock_src);
 
 	ret = esp32_select_rtc_slow_clk(cfg->rtc.rtc_slow_clock_src);