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arch: riscv: Use infinite loop instead of simple wfi to halt slave core

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If it's a multicore system, infinite loop wfi to halt slave core

Signed-off-by: Huang Qi <757509347@qq.com>
This commit is contained in:
Huang Qi 2019-09-13 00:06:00 +00:00 • committed by Anas Nashif
commit 2c277077fe
1 changed files with 3 additions and 0 deletions
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3
arch/riscv/core/reset.S
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@ -37,7 +37,10 @@ SECTION_FUNC(TEXT, __initialize)
*/ */
csrr a0, mhartid csrr a0, mhartid
beqz a0, boot_master_core beqz a0, boot_master_core
loop_slave_core:
wfi wfi
j loop_slave_core
boot_master_core: boot_master_core: