diff options
| -rw-r--r-- | arch/blackfin/kernel/cplb-mpu/cplbmgr.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c index 3b165bbe90f..44bbfe26ce4 100644 --- a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c +++ b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c @@ -165,7 +165,7 @@ static noinline int dcplb_miss(void) && (status & (FAULT_RW | FAULT_USERSUPV)) == FAULT_USERSUPV) { addr &= ~(1 * 1024 * 1024 - 1); d_data &= ~PAGE_SIZE_4KB; - d_data |= PAGE_SIZE_1MB | CPLB_USER_RD; + d_data |= PAGE_SIZE_1MB; } else return CPLB_PROT_VIOL; } else if (addr >= _ramend) { @@ -243,7 +243,13 @@ static noinline int icplb_miss(void) #endif if (addr >= physical_mem_end) { - return CPLB_PROT_VIOL; + if (addr >= BOOT_ROM_START && addr < BOOT_ROM_START + BOOT_ROM_LENGTH + && (status & FAULT_USERSUPV)) { + addr &= ~(1 * 1024 * 1024 - 1); + i_data &= ~PAGE_SIZE_4KB; + i_data |= PAGE_SIZE_1MB; + } else + return CPLB_PROT_VIOL; } else if (addr >= _ramend) { i_data |= CPLB_USER_RD; } else { |