From f5ae760cfe2658d79f12c1b7ac9dc577379e5d1c Mon Sep 17 00:00:00 2001
From: Mark Johnston <markj@FreeBSD.org>
Date: Mon, 11 Dec 2023 09:08:49 -0500
Subject: [PATCH] arm: Disable the VFP during boot

The VFP code expects the kernel to boot with VFP disabled, but some
boards will boot with it enabled.  Make sure that vfp_init() disables
the VFP on each CPU during boot.

PR:		273752
Reviewed by:	andrew
Diagnosed by:	Thomas Skibo <thomas-bsd@skibo.net>
MFC after:	1 week

(cherry picked from commit ce2f34ade8b787b068085fa8a8ddd295b06c2737)
---
 sys/arm/arm/vfp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/arm/arm/vfp.c b/sys/arm/arm/vfp.c
index bbcb468391b..6c398a7a3ea 100644
--- a/sys/arm/arm/vfp.c
+++ b/sys/arm/arm/vfp.c
@@ -181,6 +181,8 @@ vfp_init(void)
 				elf_hwcap |= HWCAP_VFPv4;
 		}
 
+		vfp_disable();
+
 		/* initialize the coprocess 10 and 11 calls
 		 * These are called to restore the registers and enable
 		 * the VFP hardware.