tree 774bdcdfca96987524d6561ee13f32a9286796fc
parent d16200961213e652d77fee4e3f339e1629d695ff
author Xiang W <wxjstz@126.com> 1699414096 +0800
committer Anup Patel <anup@brainfault.org> 1702013075 +0530

lib: sbi: Remove xchg/cmpxchg implemented via lr/sc

lr/sc is part of the A extension. If the A extension is not supported,
lr/sc cannot be used. So remove xchg/cmpxchg.

Signed-off-by: Xiang W <wxjstz@126.com>
Reviewed-by: Anup Patel <anup@brainfault.org>