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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>
gitignore-build
Matthias Welwarsky 2016-11-27 11:28:01 +01:00 committed by Paul Fertser
parent 9527d1e595
commit 8b923532c1
1 changed files with 0 additions and 13 deletions
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13
src/target/aarch64.c
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@ -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)