Add esp32s3_devkitc support (#12)

With external SPI RAM enabled for testing.

Author: noahp

.github/workflows/ci.yml

@@ -54,6 +54,12 @@ jobs:
             -- \
             -DCONFIG_MEMFAULT_PROJECT_KEY=\"1234\"
 
+          west build --sysbuild \
+            --pristine=always \
+            --board=esp32s3_devkitc/esp32s3/procpu zephyr-esp32-example \
+            -- \
+            -DCONFIG_MEMFAULT_PROJECT_KEY=\"1234\"
+
           west build --sysbuild \
             --pristine=always \
             --board=esp32c3_devkitm zephyr-esp32-example \

boards/esp32c3_devkitm.conf

@@ -1,16 +1,6 @@
-CONFIG_WIFI=y
-
 # For now, capture smaller coredumps to fit available RAM
 CONFIG_MEMFAULT_RAM_BACKED_COREDUMP_SIZE=1024
 
-CONFIG_NETWORKING=y
-CONFIG_NET_L2_ETHERNET=y
-
-CONFIG_NET_IPV6=n
-CONFIG_NET_IPV4=y
-CONFIG_NET_DHCPV4=y
-CONFIG_ESP32_WIFI_STA_AUTO_DHCPV4=y
-
 # Override selections from prj.conf to save space on this chip
 CONFIG_LOG=y
 CONFIG_NET_LOG=n

boards/esp32s3_devkitc_esp32s3_procpu.conf

@@ -0,0 +1,5 @@
+CONFIG_NET_LOG=y
+
+# Enable external SPI RAM
+CONFIG_SPI=y
+CONFIG_ESP_SPIRAM=y

boards/esp32s3_devkitc_esp32s3_procpu.overlay

@@ -0,0 +1,13 @@
+/*
+ * Copyright (c) 2023 Espressif Systems (Shanghai) Co., Ltd.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&wifi {
+	status = "okay";
+};
+
+&coretemp {
+	status = "okay";
+};

boards/esp32s3_devkitm_esp32s3_procpu.conf

@@ -1,11 +1 @@
-CONFIG_WIFI=y
-
-CONFIG_NETWORKING=y
-CONFIG_NET_L2_ETHERNET=y
-
-CONFIG_NET_IPV6=n
-CONFIG_NET_IPV4=y
-CONFIG_NET_DHCPV4=y
-CONFIG_ESP32_WIFI_STA_AUTO_DHCPV4=y
-
 CONFIG_NET_LOG=y

prj.conf

@@ -37,6 +37,9 @@ CONFIG_WIFI=y
 CONFIG_WIFI_LOG_LEVEL_ERR=y
 CONFIG_NET_L2_WIFI_SHELL=y
 
+CONFIG_NET_L2_ETHERNET=y
+CONFIG_ESP32_WIFI_STA_AUTO_DHCPV4=y
+
 # Memfault configuration
 CONFIG_MEMFAULT=y
 CONFIG_MEMFAULT_LOGGING_ENABLE=y