Summary:
- In order to support the atomic instructions by ldrex/strex instruction
in NuttX SMP, the data or later sections are mapped to the system bus.
Impact:
- Bootloader for Spresense SDK 2.1.0 or later must be installed
- Loops per msec must be adjusted
- Physical address for DMA must be converted with CXD56_PHYSADDR
Testing:
- Will be tested with later commits
Signed-off-by: Kazuya Hioki <Kazuya.Hioki@sony.com>
Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
