From 0baf6c80d971b8d5c6b1d7b0648c0cb01cedc81d Mon Sep 17 00:00:00 2001
From: robert-hh <robert@hammelrath.com>
Date: Mon, 23 Jan 2023 12:09:05 +0100
Subject: [PATCH] nrf/mpconfigport: Enable seeding of the PRNG by the hardware
 RNG.

A suitable function already existed, so just the declaration was needed.
---
 ports/nrf/mpconfigport.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/ports/nrf/mpconfigport.h b/ports/nrf/mpconfigport.h
index 27dbd3b584..629ba5e946 100644
--- a/ports/nrf/mpconfigport.h
+++ b/ports/nrf/mpconfigport.h
@@ -277,6 +277,11 @@ typedef int mp_int_t; // must be pointer size
 typedef unsigned int mp_uint_t; // must be pointer size
 typedef long mp_off_t;
 
+#if MICROPY_HW_ENABLE_RNG
+#define MICROPY_PY_URANDOM_SEED_INIT_FUNC (rng_generate_random_word())
+long unsigned int rng_generate_random_word(void);
+#endif
+
 #if BOARD_SPECIFIC_MODULES
 #include "boardmodules.h"
 #endif // BOARD_SPECIFIC_MODULES