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| author | Vineet Gupta <vgupta@synopsys.com> | 2015-03-08 08:48:21 (GMT) |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2015-04-13 09:45:17 (GMT) |
| commit | a44ec8bd2a55c7644d458d8e79d83bd9204e1796 (patch) | |
| tree | 7dc54872be8441517012137389957efe0e0d3cc3 /arch/arc | |
| parent | de60c1a1849c57e864f02f0d921993982b1648f8 (diff) | |
| download | linux-a44ec8bd2a55c7644d458d8e79d83bd9204e1796.tar.xz | |
ARC: Fix RTT boot printing
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc')
| -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 fe2c3cf..e2b1b12 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 900f68a..1d167c6 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[] = { |