socfpga_agilex5: config: Relocate malloc and bss address

With Inline ECC enabled, the bottom 1/8 of DDR is reserved
for ECC parity bits and must not be used for general data address
allocation. Previously, the SPL bss and malloc addresses were allocated
inside this ECC parity region if the DDR size is 1GB.

This caused ECC hardware to detect stale or invalid parity bits,
leading to data correction attempts and DMA polling hangs or failures.

Fix this by relocating the malloc and bss to the usable 7/8 region of DDR
and is fully ECC-safe.

This change ensures reliable ddr address operation and
prevents unintended memory corruption.

Signed-off-by: Dinesh Maniyam <dinesh.maniyam@intel.com>
Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>

diff --git a/configs/socfpga_agilex5_defconfig b/configs/socfpga_agilex5_defconfig
index 7dbb1b4aa4ed5e6efe4dff4e5e52501c32a7b21f..cc812c7008cda6332630a1b213f3666fbb23c43c 100644 (file)
--- a/configs/socfpga_agilex5_defconfig
+++ b/configs/socfpga_agilex5_defconfig
@@ -12,7 +12,7 @@ CONFIG_DEFAULT_DEVICE_TREE="socfpga_agilex5_socdk"
 CONFIG_DM_RESET=y
 CONFIG_SPL_STACK=0x7d000
 CONFIG_SPL_HAS_BSS_LINKER_SECTION=y
-CONFIG_SPL_BSS_START_ADDR=0xbff00000
+CONFIG_SPL_BSS_START_ADDR=0x9ff00000
 CONFIG_SPL_BSS_MAX_SIZE=0x100000
 CONFIG_SYS_LOAD_ADDR=0x82000000
 CONFIG_TARGET_SOCFPGA_AGILEX5_SOCDK=y
@@ -42,7 +42,7 @@ CONFIG_HANDOFF=y
 CONFIG_SPL_HAVE_INIT_STACK=y
 CONFIG_SPL_SYS_MALLOC=y
 CONFIG_SPL_HAS_CUSTOM_MALLOC_START=y
-CONFIG_SPL_CUSTOM_SYS_MALLOC_ADDR=0xbfa00000
+CONFIG_SPL_CUSTOM_SYS_MALLOC_ADDR=0x9fa00000
 CONFIG_SPL_SYS_MALLOC_SIZE=0x500000
 CONFIG_SPL_CACHE=y
 CONFIG_SPL_MTD=y