[U-Boot] [PATCH 1/1] Secure Boot: Set NPSWA_EN bit for SNVS state transition to happen in EL2.

[Udit Agarwal]

For Layerscape chasis Gen 3 based platforms, during PPA execution
exception level transition happens from EL3 to EL2. While in EL2 state
SNVS state doesnot changes from secure to non secure state in
case of ESBC failure.

So to enable the SNVS transition in EL2 state, NPSWA_EN bit has to be set
when in EL3 state.

Signed-off-by: Udit Agarwal <udit.agarwal at nxp.com>
---
 drivers/crypto/fsl/jr.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/crypto/fsl/jr.c b/drivers/crypto/fsl/jr.c
index 1b88229..ccd2168 100644
--- a/drivers/crypto/fsl/jr.c
+++ b/drivers/crypto/fsl/jr.c
@@ -8,6 +8,7 @@
 
 #include <common.h>
 #include <malloc.h>
+#include <fsl_sec_mon.h>
 #include "fsl_sec.h"
 #include "jr.h"
 #include "jobdesc.h"
@@ -574,6 +575,12 @@ int sec_init_idx(uint8_t sec_idx)
 	uint32_t liodn_s;
 #endif
 
+#if defined(CONFIG_FSL_LSCH3) && defined(CONFIG_SYS_LS_PPA_ESBC_ADDR)
+#define SEC_MON_HPCOMR		(CONFIG_SYS_SEC_MON_ADDR + 0x04)
+#define SEC_MON_HPCOMR_NPSWA_EN	0x80000000
+	sec_mon_setbits32(SEC_MON_HPCOMR, SEC_MON_HPCOMR_NPSWA_EN);
+#endif
+
 	if (!(sec_idx < CONFIG_SYS_FSL_MAX_NUM_OF_SEC)) {
 		printf("SEC initialization failed\n");
 		return -1;
-- 
1.9.1