From: Alif Zakuan Yuslaimi <alif.zakuan.yusla...@altera.com>
Introducing a new mailbox command "HPS_STAGE_NOTIFY" to notify Secure
Device Manager (SDM) on the stage of HPS code execution.
Generally, there are three main code execution stages: First Stage Boot
Loader (FSBL) which is U-Boot SPL, Second Stage Boot Loader (SSBL) which
is U-Boot, and the Operating System (OS) which is Linux.
This enables the user to query the SDM for HPS error details.
Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yusla...@altera.com>
---
arch/arm/mach-socfpga/include/mach/mailbox_s10.h | 4 ++++
arch/arm/mach-socfpga/mailbox_s10.c | 12 ++++++++++++
2 files changed, 16 insertions(+)
diff --git a/arch/arm/mach-socfpga/include/mach/mailbox_s10.h
b/arch/arm/mach-socfpga/include/mach/mailbox_s10.h
index 45cc9912f94..2099c51b682 100644
--- a/arch/arm/mach-socfpga/include/mach/mailbox_s10.h
+++ b/arch/arm/mach-socfpga/include/mach/mailbox_s10.h
@@ -128,6 +128,7 @@ enum ALT_SDM_MBOX_RESP_CODE {
#define MBOX_QSPI_CLOSE 51
#define MBOX_QSPI_DIRECT 59
#define MBOX_REBOOT_HPS 71
+#define MBOX_HPS_STAGE_NOTIFY 93
/* Mailbox registers */
#define MBOX_CIN 0 /* command valid offset */
@@ -385,6 +386,8 @@ enum MBOX_CFGSTAT_MINOR_ERR_CODE {
#define RCF_SOFTFUNC_STATUS_SEU_ERROR BIT(3)
#define RCF_PIN_STATUS_NSTATUS BIT(31)
+#define HPS_EXECUTION_STATE_FSBL 0
+
int mbox_send_cmd(u8 id, u32 cmd, u8 is_indirect, u32 len, u32 *arg, u8 urgent,
u32 *resp_buf_len, u32 *resp_buf);
int mbox_send_cmd_psci(u8 id, u32 cmd, u8 is_indirect, u32 len, u32 *arg,
@@ -401,6 +404,7 @@ int mbox_qspi_open(void);
#endif
int mbox_reset_cold(void);
+int mbox_hps_stage_notify(u32 execution_stage);
int mbox_get_fpga_config_status(u32 cmd);
int mbox_get_fpga_config_status_psci(u32 cmd);
#endif /* _MAILBOX_S10_H_ */
diff --git a/arch/arm/mach-socfpga/mailbox_s10.c
b/arch/arm/mach-socfpga/mailbox_s10.c
index b69bd3e47ec..f9c34e85711 100644
--- a/arch/arm/mach-socfpga/mailbox_s10.c
+++ b/arch/arm/mach-socfpga/mailbox_s10.c
@@ -6,6 +6,7 @@
#include <asm/arch/clock_manager.h>
#include <asm/arch/mailbox_s10.h>
+#include <asm/arch/smc_api.h>
#include <asm/arch/system_manager.h>
#include <asm/global_data.h>
#include <asm/io.h>
@@ -474,6 +475,17 @@ int __secure mbox_send_cmd_psci(u8 id, u32 cmd, u8
is_indirect, u32 len,
urgent, resp_buf_len, resp_buf);
}
+int mbox_hps_stage_notify(u32 execution_stage)
+{
+#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_ATF)
+ return smc_send_mailbox(MBOX_HPS_STAGE_NOTIFY, 1, &execution_stage,
+ 0, 0, NULL);
+#else
+ return mbox_send_cmd(MBOX_ID_UBOOT, MBOX_HPS_STAGE_NOTIFY,
+ MBOX_CMD_DIRECT, 1, &execution_stage, 0, 0, NULL);
+#endif
+}
+
int mbox_send_cmd_only(u8 id, u32 cmd, u8 is_indirect, u32 len, u32 *arg)
{
return mbox_send_cmd_only_common(id, cmd, is_indirect, len, arg);
--
2.25.1
