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

This commit is contained in:

Mark Johnston

2023-12-11 09:08:49 -05:00

parent 03a07de0d5

commit ce2f34ade8

1 changed files with 2 additions and 0 deletions

									
										sys/arm/arm/vfp.c
									
		+2
		
												View File
												
				@@ -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.