diff options
| -rw-r--r-- | arch/arc/include/asm/arcregs.h | 1 | ||||
| -rw-r--r-- | arch/arc/kernel/setup.c | 5 |
2 files changed, 5 insertions, 1 deletions
diff --git a/arch/arc/include/asm/arcregs.h b/arch/arc/include/asm/arcregs.h index fe2c3cf82281..e2b1b1211b0d 100644 --- a/arch/arc/include/asm/arcregs.h +++ b/arch/arc/include/asm/arcregs.h @@ -30,6 +30,7 @@ #define ARC_REG_D_UNCACH_BCR 0x6A #define ARC_REG_BPU_BCR 0xc0 #define ARC_REG_ISA_CFG_BCR 0xc1 +#define ARC_REG_RTT_BCR 0xF2 #define ARC_REG_SMART_BCR 0xFF /* status32 Bits Positions */ diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c index 900f68a70088..1d167c6df8ca 100644 --- a/arch/arc/kernel/setup.c +++ b/arch/arc/kernel/setup.c @@ -120,7 +120,10 @@ static void read_arc_build_cfg_regs(void) READ_BCR(ARC_REG_SMART_BCR, bcr); cpu->extn.smart = bcr.ver ? 1 : 0; - cpu->extn.debug = cpu->extn.ap | cpu->extn.smart; + READ_BCR(ARC_REG_RTT_BCR, bcr); + cpu->extn.rtt = bcr.ver ? 1 : 0; + + cpu->extn.debug = cpu->extn.ap | cpu->extn.smart | cpu->extn.rtt; } static const struct cpuinfo_data arc_cpu_tbl[] = { |