risc-v/esp32c3: Support ESP32-C3 SHA accelerator

boards/risc-v/esp32c3/esp32c3-devkit/configs/sha/defconfig

@@ -0,0 +1,48 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_CMDPARMS is not set
+CONFIG_ARCH="risc-v"
+CONFIG_ARCH_BOARD="esp32c3-devkit"
+CONFIG_ARCH_BOARD_ESP32C3_DEVKIT=y
+CONFIG_ARCH_CHIP="esp32c3"
+CONFIG_ARCH_CHIP_ESP32C3=y
+CONFIG_ARCH_CHIP_ESP32C3WROOM02=y
+CONFIG_ARCH_INTERRUPTSTACK=1536
+CONFIG_ARCH_RISCV=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARD_LOOPSPERMSEC=15000
+CONFIG_BUILTIN=y
+CONFIG_DEBUG_ASSERTIONS=y
+CONFIG_DEBUG_FEATURES=y
+CONFIG_DEV_ZERO=y
+CONFIG_ESP32C3_SHA_ACCELERATOR=y
+CONFIG_ESP32C3_SHA_ACCELERATOR_TEST=y
+CONFIG_FS_PROCFS=y
+CONFIG_IDLETHREAD_STACKSIZE=2048
+CONFIG_INTELHEX_BINARY=y
+CONFIG_LIBC_PERROR_STDOUT=y
+CONFIG_LIBC_STRERROR=y
+CONFIG_MAX_TASKS=16
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_FILEIOSIZE=512
+CONFIG_NSH_READLINE=y
+CONFIG_NSH_STRERROR=y
+CONFIG_PREALLOC_TIMERS=0
+CONFIG_RAW_BINARY=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_START_DAY=29
+CONFIG_START_MONTH=11
+CONFIG_START_YEAR=2019
+CONFIG_SYSTEM_NSH=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_USER_ENTRYPOINT="esp32c3_sha_main"

boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3_bringup.c

@@ -59,6 +59,10 @@
 #  include "esp32c3_efuse.h"
 #endif
 
+#ifdef CONFIG_ESP32C3_SHA_ACCELERATOR
+#  include "esp32c3_sha.h"
+#endif
+
 #ifdef CONFIG_RTC_DRIVER
 #  include "esp32c3_rtc_lowerhalf.h"
 #endif
@@ -137,6 +141,15 @@ int esp32c3_bringup(void)
     }
 #endif
 
+#ifdef CONFIG_ESP32C3_SHA_ACCELERATOR
+  ret = esp32c3_sha_init();
+  if (ret < 0)
+    {
+      syslog(LOG_ERR,
+             "ERROR: Failed to initialize SHA: %d\n", ret);
+    }
+#endif
+
 #ifdef CONFIG_FS_PROCFS
   /* Mount the procfs file system */