esp_mbedtls_sha512_mode_ESP_MBEDTLS_SHA512_SOFTWARE

esp_idf_sys

Constant esp_mbedtls_sha512_mode_ESP_MBEDTLS_SHA512_SOFTWARE 

Source 
pub const esp_mbedtls_sha512_mode_ESP_MBEDTLS_SHA512_SOFTWARE: esp_mbedtls_sha512_mode = 2;