On 5/6/2026 9:54 am, [email protected] wrote:
From: Alif Zakuan Yuslaimi <[email protected]>
Enable backup for data section to support warm reset in Stratix10 SPL as
no SPL image would be reloaded in warm reset.
Signed-off-by: Alif Zakuan Yuslaimi <[email protected]>
---
Changes in v4:
- Update reset_flag() weak function to take in u32 flag parameter
arch/arm/mach-socfpga/spl_s10.c | 17 +++++++++++++++++
configs/socfpga_stratix10_defconfig | 2 +-
2 files changed, 18 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-socfpga/spl_s10.c b/arch/arm/mach-socfpga/spl_s10.c
index 8ab80740c6e..00d43460fce 100644
--- a/arch/arm/mach-socfpga/spl_s10.c
+++ b/arch/arm/mach-socfpga/spl_s10.c
@@ -21,12 +21,29 @@
#include <watchdog.h>
#include <dm/uclass.h>
+u32 reset_flag(u32 flag)
+{
+ /* Check rstmgr.stat for warm reset status */
+ u32 status = readl(SOCFPGA_RSTMGR_ADDRESS);
+
+ /* Check whether any L4 watchdogs or SDM had triggered warm reset */
+ u32 warm_reset_mask = RSTMGR_L4WD_MPU_WARMRESET_MASK;
+
+ if (status & warm_reset_mask)
+ return 0;
+
+ return 1;
+}
+
void board_init_f(ulong dummy)
{
const struct cm_config *cm_default_cfg = cm_get_default_config();
int ret;
struct udevice *dev;
+ if (IS_ENABLED(CONFIG_XPL_BUILD))
+ spl_save_restore_data();
+
ret = spl_early_init();
if (ret)
hang();
diff --git a/configs/socfpga_stratix10_defconfig
b/configs/socfpga_stratix10_defconfig
index 82f0cceafb4..be0c452ead0 100644
--- a/configs/socfpga_stratix10_defconfig
+++ b/configs/socfpga_stratix10_defconfig
@@ -3,7 +3,6 @@ CONFIG_COUNTER_FREQUENCY=400000000
CONFIG_ARCH_SOCFPGA=y
CONFIG_TEXT_BASE=0x200000
CONFIG_NR_DRAM_BANKS=2
-CONFIG_SPL_LDSCRIPT="arch/arm/mach-socfpga/u-boot-spl-soc64.lds"
CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x300000
CONFIG_SF_DEFAULT_MODE=0x2003
@@ -19,6 +18,7 @@ CONFIG_SPL_BSS_MAX_SIZE=0x100000
CONFIG_TARGET_SOCFPGA_STRATIX10_SOCDK=y
CONFIG_IDENT_STRING="socfpga_stratix10"
CONFIG_SPL_FS_FAT=y
+CONFIG_SPL_RECOVER_DATA_SECTION=y
CONFIG_FIT=y
CONFIG_SPL_FIT_SIGNATURE=y
CONFIG_SPL_LOAD_FIT=y
Reviewed-by: Tien Fong Chee <[email protected]>
Best regards,
Tien Fong
