Re: [PATCH 6/8] configs: add defconfigs for am6254atl

[Anshul Dalal <anshuld@ti.com>]

On Wed Oct 22, 2025 at 5:46 PM IST, Bryan Brattlof wrote:
> On October 22, 2025 thus sayeth Anshul Dalal:
>> OP-TEE for current K3 devices resides from 0x9e800000 to 0xa0000000
>> which needs to be moved to 0x80080000 to free up space at end of DDR in
>> systems with 512MiB of memory. This is required to allow U-Boot to
>> relocate to end of DDR before booting to the kernel.
>> 
>> Therefore defconfigs for AM6254atl include the respective existing AM62x
>> configs with updated dt for r5 and modified memory map for a53 SPL to
>> account for the new OP-TEE address.
>> 
>> Also make Bryan Brattlof and Tom Rini the maintainers for AM6254atl SIP.
>> 
>> Signed-off-by: Anshul Dalal <anshuld@ti.com>
>> ---
>>  board/ti/am62x/MAINTAINERS          |  2 ++
>>  configs/am6254atl_evm_a53_defconfig | 15 +++++++++++++++
>>  configs/am6254atl_evm_r5_defconfig  |  9 +++++++++
>>  3 files changed, 26 insertions(+)
>> 
>> diff --git a/board/ti/am62x/MAINTAINERS b/board/ti/am62x/MAINTAINERS
>> index d7dfefffe751b5f3a1292ef8cc9e2926f09c77ae..ca269fae880357eb9f62232a3a32bbafa8b3d29d 100644
>> --- a/board/ti/am62x/MAINTAINERS
>> +++ b/board/ti/am62x/MAINTAINERS
>> @@ -10,3 +10,5 @@ F:	configs/am62x_evm_r5_ethboot_defconfig
>>  F:	configs/am62x_evm_a53_ethboot_defconfig
>>  F:	configs/am62x_lpsk_r5_defconfig
>>  F:	configs/am62x_lpsk_a53_defconfig
>> +F:	configs/am6254atl_evm_r5_defconfig
>> +F:	configs/am6254atl_evm_a53_defconfig
>> diff --git a/configs/am6254atl_evm_a53_defconfig b/configs/am6254atl_evm_a53_defconfig
>> new file mode 100644
>> index 0000000000000000000000000000000000000000..fdf6be7068e7b2fe4e48f1f322703f6838729497
>> --- /dev/null
>> +++ b/configs/am6254atl_evm_a53_defconfig
>> @@ -0,0 +1,15 @@
>> +#include <configs/am62x_evm_a53_defconfig>
>> +
>> +CONFIG_ARM=y
>> +CONFIG_ARCH_K3=y
>> +CONFIG_SOC_K3_AM625=y
>> +CONFIG_TARGET_AM625_A53_EVM=y
>> +CONFIG_TEXT_BASE=0x82f80000
>> +CONFIG_BLOBLIST_ADDR=0x82c80000
>
> I think this may have been leftover from some experimentation.
> Do we still need the bloblist stuff?
>

I was under the impression that 0x80d00000 is the default BLOBLIST_ADDR
for AM62 SoCs as per the documentation[1] and needed to be modified for
62 SiP.

While in fact we don't make use of bloblists in upstream U-Boot anyways,
should we drop the mention of BLOBS from the docs as well?

Regards,
Anshul

[1]: https://docs.u-boot.org/en/stable/board/ti/am62x_sk.html#a53-spl-ddr-memory-layout