diff mbox series

arch: arm: mach-socfpga: To notify SDM when SPL pass control to U-Boot

Message ID 20220831062939.10458-1-jit.loon.lim@intel.com
State Needs Review / ACK, archived
Delegated to: Marek Vasut
Headers show
Series arch: arm: mach-socfpga: To notify SDM when SPL pass control to U-Boot | expand

Commit Message

Jit Loon Lim Aug. 31, 2022, 6:29 a.m. UTC 
From: Chin Liang See <chin.liang.see@intel.com>

Prior SPL pass control to U-Boot, SPL will send a mailbox command
"HPS_STAGE_NOTIFY" to notify Secure Device Manager (SDM) on HPS SW
transition.

The purpose is for debug as user can query SDM on HPS error details
when HPS enters a warm reset due to error such as watchdog.

Signed-off-by: Chin Liang See <chin.liang.see@intel.com>
Signed-off-by: Jit Loon Lim <jit.loon.lim@intel.com>
---
 arch/arm/mach-socfpga/spl_s10.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm/mach-socfpga/spl_s10.c b/arch/arm/mach-socfpga/spl_s10.c
index c20e87cdbe..9bfd1a0f6a 100644
--- a/arch/arm/mach-socfpga/spl_s10.c
+++ b/arch/arm/mach-socfpga/spl_s10.c
@@ -92,3 +92,9 @@  void board_init_f(ulong dummy)
 	mbox_qspi_open();
 #endif
 }
+
+/* board specific function prior loading SSBL / U-Boot */
+void spl_board_prepare_for_boot(void)
+{
+	mbox_hps_stage_notify(HPS_EXECUTION_STATE_SSBL);
+}