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3 Commits

Author SHA1 Message Date
Xiang Xiao
d80c2d7419 arch/arm: Remove all lazy fpu related code 
since it is broken and inefficient, and then removed by:
commit dc961baaea
Author: chao.an <anchao@xiaomi.com>
Date:   Thu Apr 14 18:07:14 2022 +0800

    arm/armv7-[a|r]: move fpu save/restore to assembly handler

    Save/Restore FPU registers in C environment is dangerous practive,
    which cannot guarantee the compiler won't generate the assembly code
    with float point registers, especially in interrupt handling

    Signed-off-by: chao.an <anchao@xiaomi.com>

commit 8d66dbc068
Author: chao.an <anchao@xiaomi.com>
Date:   Thu Apr 7 13:48:04 2022 +0800

    arm/armv[7|8]-m: skip the fpu save/restore if stack frame is integer-only

    Signed-off-by: chao.an <anchao@xiaomi.com>

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-04-19 11:09:36 +03:00
Michael Jung
747da36eae b-u585i-iot02a:nsh: Drop TrustedFirmware-M dependency 
Make the nsh defconfig for the b-u585i-iot02a run stand-alone (i.e. not
as a companion that relies on TF-M doing low-level board
initialization).
 2022-04-03 23:20:03 +03:00
Michael Jung
6086f42bfb b-u585i-iot02a: Board Support 
Support for the STMicroelectronics B-U585I-IOT02A development board. This
is a proof-of-concept port that demonstrates running NuttX as the
Non-Secure TrustZone domain companion to TrustedFirmware-M.

Signed-off-by: Michael Jung <mijung@gmx.net>
 2022-02-13 16:32:35 +08:00