diff options
Diffstat (limited to 'arch/mips/kernel/mips-cm.c')
| -rw-r--r-- | arch/mips/kernel/mips-cm.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/mips/kernel/mips-cm.c b/arch/mips/kernel/mips-cm.c index b4f7d950c846..3f00788b0871 100644 --- a/arch/mips/kernel/mips-cm.c +++ b/arch/mips/kernel/mips-cm.c @@ -181,11 +181,16 @@ static DEFINE_PER_CPU_ALIGNED(unsigned long, cm_core_lock_flags); phys_addr_t __mips_cm_phys_base(void) { - u32 config3 = read_c0_config3(); unsigned long cmgcr; /* Check the CMGCRBase register is implemented */ - if (!(config3 & MIPS_CONF3_CMGCR)) + if (!(read_c0_config() & MIPS_CONF_M)) + return 0; + + if (!(read_c0_config2() & MIPS_CONF_M)) + return 0; + + if (!(read_c0_config3() & MIPS_CONF3_CMGCR)) return 0; /* Read the address from CMGCRBase */ |