[v1.03][RISCV] Add basic SoC detection backend

src/riscv/socs.h

@@ -0,0 +1,19 @@
+#ifndef __SOCS__
+#define __SOCS__
+
+#include "soc.h"
+
+// List of supported SOCs
+enum {
+  // SIFIVE
+  SOC_SIFIVE_U740,
+  // UNKNOWN
+  SOC_MODEL_UNKNOWN
+};
+
+inline static VENDOR get_soc_vendor_from_soc(SOC soc) {
+  if(soc >= SOC_SIFIVE_U740 && soc <= SOC_SIFIVE_U740) return SOC_VENDOR_SIFIVE;
+  return SOC_VENDOR_UNKNOWN;
+}
+
+#endif