diff options
Diffstat (limited to 'arch/blackfin/kernel/cplb-mpu/cplbmgr.c')
| -rw-r--r-- | arch/blackfin/kernel/cplb-mpu/cplbmgr.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c index 3377cbf28fb..3b165bbe90f 100644 --- a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c +++ b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c @@ -161,6 +161,11 @@ static noinline int dcplb_miss(void) addr &= ~0x3fffff; d_data &= ~PAGE_SIZE_4KB; d_data |= PAGE_SIZE_4MB; + } else if (addr >= BOOT_ROM_START && addr < BOOT_ROM_START + BOOT_ROM_LENGTH + && (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; } else return CPLB_PROT_VIOL; } else if (addr >= _ramend) { @@ -277,7 +282,6 @@ static noinline int icplb_miss(void) static noinline int dcplb_protection_fault(void) { - unsigned long addr = bfin_read_DCPLB_FAULT_ADDR(); int status = bfin_read_DCPLB_STATUS(); nr_dcplb_prot++; |