On 22/7/2026 9:52 am, [email protected] wrote:
From: Alif Zakuan Yuslaimi <[email protected]>
Enable backup for data section to support warm reset in Agilex7M SPL as
no SPL image would be reloaded in warm reset.
Signed-off-by: Alif Zakuan Yuslaimi <[email protected]>
---
arch/arm/mach-socfpga/spl_agilex7m.c | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-socfpga/spl_agilex7m.c
b/arch/arm/mach-socfpga/spl_agilex7m.c
index 7371202a712..93f148f2b39 100644
--- a/arch/arm/mach-socfpga/spl_agilex7m.c
+++ b/arch/arm/mach-socfpga/spl_agilex7m.c
@@ -20,6 +20,20 @@
#include <asm/utils.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)
{
int ret;
@@ -28,7 +42,7 @@ void board_init_f(ulong dummy)
/* Enable Async */
asm volatile("msr daifclr, #4");
-#ifdef CONFIG_XPL_BUILD
+#if defined(CONFIG_XPL_BUILD) && defined(CONFIG_SPL_RECOVER_DATA_SECTION)
spl_save_restore_data();
#endif
Reviewed-by: Tien Fong Chee <[email protected]>
Best regards,
Tien Fong
