aarch64: remove bogus address check before memory access

Mmu faults can not be prevented on aarch64, they need to be taken and
handled accordingly. Remove the remaining stub code.

Change-Id: I6241efa594fe6b963624f9628cdf1c8e46588223
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/3987
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>

diff --git a/src/target/aarch64.c b/src/target/aarch64.c
index d3ed57c5d8a38015cc3792517bc09821ee5ab8e3..5dd6d7adea66d196af13f6d1612374bf2abd5b45 100644 (file)
--- a/src/target/aarch64.c
+++ b/src/target/aarch64.c
@@ -103,13 +103,6 @@ static int aarch64_restore_system_control_reg(struct target *target)
        return retval;
 }
 
-/*  check address before aarch64_apb read write access with mmu on
- *  remove apb predictible data abort */
-static int aarch64_check_address(struct target *target, uint32_t address)
-{
-       /* TODO */
-       return ERROR_OK;
-}
 /*  modify system_control_reg in order to enable or disable mmu for :
  *  - virt2phys address conversion
  *  - read or write memory in phys or virt address */
@@ -1651,9 +1644,6 @@ static int aarch64_read_memory(struct target *target, target_addr_t address,
                return retval;
 
        if (mmu_enabled) {
-               retval = aarch64_check_address(target, address);
-               if (retval != ERROR_OK)
-                       return retval;
                /* enable MMU as we could have disabled it for phys access */
                retval = aarch64_mmu_modify(target, 1);
                if (retval != ERROR_OK)
@@ -1691,9 +1681,6 @@ static int aarch64_write_memory(struct target *target, target_addr_t address,
                return retval;
 
        if (mmu_enabled) {
-               retval = aarch64_check_address(target, address);
-               if (retval != ERROR_OK)
-                       return retval;
                /* enable MMU as we could have disabled it for phys access */
                retval = aarch64_mmu_modify(target, 1);
                if (retval != ERROR_OK)