esp32s2: drivers: clock_control: add support

add clock control driver support for esp32s2 SoC.

Signed-off-by: Glauber Maroto Ferreira <glauber.ferreira@espressif.com>

include/dt-bindings/clock/esp32s2_clock.h

@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2021 Espressif Systems (Shanghai) Co., Ltd.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef ZEPHYR_INCLUDE_DT_BINDINGS_CLOCK_ESP32S2_H_
+#define ZEPHYR_INCLUDE_DT_BINDINGS_CLOCK_ESP32S2_H_
+
+/* System Clock Source */
+#define ESP32_CLK_SRC_XTAL             0U
+#define ESP32_CLK_SRC_PLL              1U
+#define ESP32_CLK_SRC_RTC8M            2U
+#define ESP32_CLK_SRC_APLL             3U
+
+/* Supported CPU Frequencies */
+#define ESP32_CLK_CPU_26M              26U
+#define ESP32_CLK_CPU_40M              40U
+#define ESP32_CLK_CPU_80M              80U
+#define ESP32_CLK_CPU_160M             160U
+#define ESP32_CLK_CPU_240M             240U
+
+/* Supported XTAL Frequencies */
+#define ESP32_CLK_XTAL_40M             0U
+
+/* Modules IDs
+ * These IDs are actually offsets in CLK and RST Control registers.
+ * These IDs shouldn't be changed unless there is a Hardware change
+ * from Espressif.
+ *
+ * Basic Modules
+ * Registers: DPORT_PERIP_CLK_EN_REG, DPORT_PERIP_RST_EN_REG
+ */
+#define ESP32_LEDC_MODULE              0
+#define ESP32_UART0_MODULE             1
+#define ESP32_UART1_MODULE             2
+#define ESP32_USB_MODULE               3
+#define ESP32_I2C0_MODULE              4
+#define ESP32_I2C1_MODULE              5
+#define ESP32_I2S0_MODULE              6
+#define ESP32_I2S1_MODULE              7
+#define ESP32_TIMG0_MODULE             8
+#define ESP32_TIMG1_MODULE             9
+#define ESP32_PWM0_MODULE              10
+#define ESP32_PWM1_MODULE              11
+#define ESP32_PWM2_MODULE              12
+#define ESP32_PWM3_MODULE              13
+#define ESP32_UHCI0_MODULE             14
+#define ESP32_UHCI1_MODULE             15
+#define ESP32_RMT_MODULE               16
+#define ESP32_PCNT_MODULE              17
+#define ESP32_SPI_MODULE               18
+#define ESP32_FSPI_MODULE              19
+#define ESP32_HSPI_MODULE              20
+#define ESP32_SPI2_DMA_MODULE          21
+#define ESP32_SPI3_DMA_MODULE          22
+#define ESP32_TWAI_MODULE              23
+#define ESP32_RNG_MODULE               24
+#define ESP32_WIFI_MODULE              25
+#define ESP32_WIFI_BT_COMMON_MODULE    26
+#define ESP32_SYSTIMER_MODULE          27
+#define ESP32_AES_MODULE               28
+#define ESP32_SHA_MODULE               29
+#define ESP32_RSA_MODULE               30
+#define ESP32_CRYPTO_DMA_MODULE        31
+#define ESP32_AES_DMA_MODULE           32
+#define ESP32_SHA_DMA_MODULE           33
+#define ESP32_DEDIC_GPIO_MODULE        34
+#define ESP32_MODULE_MAX               35
+
+#endif /* ZEPHYR_INCLUDE_DT_BINDINGS_CLOCK_ESP32S2_H_ */