Hi Lok,

On 28/4/2026 3:00 pm, Chen Huei Lok wrote:
Enable required configs to support DDR retention. Including generic
firmware loader for loading backup calibration data, and SHA384/512
checking.

Signed-off-by: Tien Fong Chee <[email protected]>
Signed-off-by: Chen Huei Lok <[email protected]>
---
  configs/socfpga_n5x_defconfig | 4 ++++
  1 file changed, 4 insertions(+)

diff --git a/configs/socfpga_n5x_defconfig b/configs/socfpga_n5x_defconfig
index b6df9946ef3..273e74c6499 100644
--- a/configs/socfpga_n5x_defconfig
+++ b/configs/socfpga_n5x_defconfig
@@ -90,4 +90,8 @@ CONFIG_WDT=y
  # CONFIG_SPL_USE_TINY_PRINTF is not set
  CONFIG_PANIC_HANG=y
  CONFIG_SPL_CRC32=y
+CONFIG_SHA512_ALGO=y
+CONFIG_SHA384=y
+CONFIG_FS_LOADER=y
+CONFIG_SPL_ENV_SUPPORT=y
  # CONFIG_TOOLS_MKEFICAPSULE is not set


Please document the rationale for introducing DDR retention and describe

how HA384/SHA512, FS_LOADER, and CONFIG_SPL_ENV_SUPPORT are adapted to support DDR retention (e.g., required init/order changes, state handoff, buffer placement, and

failure modes).

It appears FS_LOADER may be missing pieces needed for DDR retention (such as handling retained memory regions or re-init sequencing).

Consider restructuring this as a series that first enables DDR retention for N5X, then adds the required support in FS_LOADER and SPL env handling in follow-up patches.


Best regards,

Tien Fong

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