tree 23600ee81cf25dbf532a6bbb5cafe660db1f2656
parent 686c2d83e1873ecd71d129dcdcca169a06cda80f
author Armando Montanez <amontanez@google.com> 1576016616 -0800
committer CQ Bot Account <commit-bot@chromium.org> 1576197226 +0000

stm32f429i-disc1: Enable hardware FPU

 * Add Cortex-M4 toolchains with floating point hardware instructions.
 * Update stm32f429i-disc1 to use hardware fpu toolchain by default.
 * Add code to enable FPU in pw_dumb_io.

Verified tests that use floating point operations continue to pass.

Change-Id: I76bc7eeaf457eca1abacbc60992648d63dc85bf2