soc: esp32s3: add Wi-Fi support

This adds Wi-Fi linker areas and also bring wi-Fi entry
into SoC device tree.

Signed-off-by: Sylvio Alves <sylvio.alves@espressif.com>

Author: sylvioalves

boards/xtensa/esp32s3_devkitm/Kconfig.defconfig

@@ -11,6 +11,7 @@ config ENTROPY_GENERATOR
 	default y
 
 config HEAP_MEM_POOL_SIZE
+	default 98304 if WIFI
 	default 40960 if BT
 	default 4096
 

dts/xtensa/espressif/esp32s3.dtsi

@@ -35,6 +35,11 @@
 
 	};
 
+	wifi: wifi {
+		compatible = "espressif,esp32-wifi";
+		status = "disabled";
+	};
+
 	pinctrl: pin-controller {
 		compatible = "espressif,esp32-pinctrl";
 		status = "okay";

samples/net/wifi/boards/esp32s3_devkitm.conf

@@ -0,0 +1,11 @@
+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

samples/net/wifi/boards/esp32s3_devkitm.overlay

@@ -0,0 +1,9 @@
+/*
+ * Copyright (c) 2023 Espressif Systems (Shanghai) Co., Ltd.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&wifi {
+	status = "okay";
+};

soc/xtensa/esp32s3/linker.ld

@@ -188,7 +188,7 @@ SECTIONS
   .rtc.data :
   {
     _rtc_data_start = ABSOLUTE(.);
-	*(.rtc.data)
+    *(.rtc.data)
     *(.rtc.rodata)
     *rtc_wake_stub*.o(.data .rodata .data.* .rodata.* .bss .bss.*)
     _rtc_data_end = ABSOLUTE(.);
@@ -309,6 +309,7 @@ SECTIONS
     *libzephyr.a:windowspill_asm.*(.literal .text .literal.* .text.*)
     *libzephyr.a:log_noos.*(.literal .text .literal.* .text.*)
     *libdrivers__timer.a:xtensa_sys_timer.*(.literal .text .literal.* .text.*)
+    *libzephyr.a:systimer_hal.*(.literal .text .literal.* .text.*)
     *libzephyr.a:log_core.*(.literal .text .literal.* .text.*)
     *libzephyr.a:cbprintf_complete.*(.literal .text .literal.* .text.*)
     *libzephyr.a:printk.*(.literal.printk .literal.vprintk .literal.char_out .text.printk .text.vprintk .text.char_out)
@@ -321,8 +322,19 @@ SECTIONS
     *liblib__libc__minimal.a:string.*(.literal .text .literal.* .text.*)
     *liblib__libc__newlib.a:string.*(.literal .text .literal.* .text.*)
     *libc.a:*(.literal .text .literal.* .text.*)
+    *libphy.a:(.phyiram .phyiram.*)
     *libgcov.a:(.literal .text .literal.* .text.*)
 
+#if defined(CONFIG_ESP32_WIFI_IRAM_OPT)
+    *libnet80211.a:( .wifi0iram  .wifi0iram.* .wifislpiram .wifislpiram.*)
+    *libpp.a:( .wifi0iram  .wifi0iram.* .wifislpiram .wifislpiram.* .wifiorslpiram .wifiorslpiram.*)
+#endif
+
+#if defined(CONFIG_ESP32_WIFI_RX_IRAM_OPT)
+    *libnet80211.a:( .wifirxiram  .wifirxiram.* .wifislprxiram .wifislprxiram.*)
+    *libpp.a:( .wifirxiram  .wifirxiram.* .wifislprxiram .wifislprxiram.*)
+#endif
+
   } GROUP_DATA_LINK_IN(IRAM_REGION, ROMABLE_REGION)
 
   _image_dram_start = LOADADDR(.dram0.data);
@@ -362,6 +374,7 @@ SECTIONS
     *libkernel.a:init.*(.rodata .rodata.*)
     *libzephyr.a:cbprintf_complete*(.rodata .rodata.*)
     *libzephyr.a:log_core.*(.rodata .rodata.*)
+    *libzephyr.a:systimer_hal.*(.rodata .rodata.*)
     *libzephyr.a:log_backend_uart.*(.rodata .rodata.*)
     *libzephyr.a:log_output.*(.rodata .rodata.*)
     *libzephyr.a:loader.*(.rodata .rodata.*)
@@ -434,6 +447,16 @@ SECTIONS
     _stext = .;
     _text_start = ABSOLUTE(.);
 
+#if !defined(CONFIG_ESP32_WIFI_IRAM_OPT)
+    *libnet80211.a:( .wifi0iram  .wifi0iram.* .wifislpiram .wifislpiram.*)
+    *libpp.a:( .wifi0iram  .wifi0iram.* .wifislpiram .wifislpiram.* .wifiorslpiram .wifiorslpiram.*)
+#endif
+
+#if !defined(CONFIG_ESP32_WIFI_RX_IRAM_OPT)
+    *libnet80211.a:( .wifirxiram  .wifirxiram.* .wifislprxiram .wifislprxiram.*)
+    *libpp.a:( .wifirxiram  .wifirxiram.* .wifislprxiram .wifislprxiram.*)
+#endif
+
     *(.stub .gnu.warning .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*)
     *(.irom0.text) /* catch stray ICACHE_RODATA_ATTR */
     *(.fini.literal)

west.yml

@@ -57,7 +57,7 @@ manifest:
       groups:
         - hal
     - name: hal_espressif
-      revision: d7576d0da639acbd9a191a3eb7e4f3f3476c9641
+      revision: 8e5da13712012d2cc480f7abc699235352153e05
       path: modules/hal/espressif
       west-commands: west/west-commands.yml
       groups: