[RFC PATCH 2/2] binman: j721e: Add firewall configurations for atf
Neha Malcom Francis
n-francis at ti.com
Wed Sep 6 05:50:00 CEST 2023
Hi Andrew,
On 05/09/23 20:52, Andrew Davis wrote:
> On 9/5/23 3:21 AM, Manorit Chawdhry wrote:
>> The following commits adds the configuration of firewalls required to
>> protect ATF and OP-TEE memory region from non-secure reads and
>> writes using master and slave firewalls present in our K3 SOCs.
[...]
>> + // cpu_0_cpu_0_msmc Foreground Firewall
>> + firewall-1 {
>> + id = <257>;
>> + region = <1>;
>> + control = <0x1a>;
>> + permissions = <0x0100ff>;
>> + start_address = <0x0 0x70000000>;
>
> This address might change if one moves ATF, might work to use
> CONFIG_K3_ATF_LOAD_ADDR?
> Not sure how you would get the end address as we don't really know ATF size..
>
I think this could be handled within binman IF CONFIG_K3_ATF_LOAD_ADDR and the
ATF binary were not only A53/A72 inputs. But since it is, I don't see how that
can be implemented.
> Andrew
--
Thanking You
Neha Malcom Francis
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