diff options
Diffstat (limited to 'arch/mips/kernel/idle.c')
| -rw-r--r-- | arch/mips/kernel/idle.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/mips/kernel/idle.c b/arch/mips/kernel/idle.c index 368c88b7eb6c..e4f62b7875d2 100644 --- a/arch/mips/kernel/idle.c +++ b/arch/mips/kernel/idle.c @@ -176,6 +176,17 @@ void __init check_wait(void) cpu_wait = rm7k_wait_irqoff; break; + case CPU_PROAPTIV: + case CPU_P5600: + /* + * Incoming Fast Debug Channel (FDC) data during a wait + * instruction causes the wait never to resume, even if an + * interrupt is received. Avoid using wait at all if FDC data is + * likely to be received. + */ + if (IS_ENABLED(CONFIG_MIPS_EJTAG_FDC_TTY)) + break; + /* fall through */ case CPU_M14KC: case CPU_M14KEC: case CPU_24K: @@ -183,8 +194,6 @@ void __init check_wait(void) case CPU_1004K: case CPU_1074K: case CPU_INTERAPTIV: - case CPU_PROAPTIV: - case CPU_P5600: case CPU_M5150: case CPU_QEMU_GENERIC: cpu_wait = r4k_wait; |