drivers: renesas: rzg: Add PFC support for RZ/G2N

Add pin control support for RZ/G2N SoC.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Change-Id: Ib5eb4f3b1b75e158ec13c4eefdbe9688344206a3

drivers/renesas/rzg/pfc/G2N/pfc_init_g2n.h

+/*
+ * Copyright (c) 2021, Renesas Electronics Corporation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef PFC_INIT_G2N_H
+#define PFC_INIT_G2N_H
+
+void pfc_init_g2n(void);
+
+#endif /* PFC_INIT_G2N_H */

drivers/renesas/rzg/pfc/pfc.mk

@@ -7,6 +7,7 @@
 ifeq (${RCAR_LSI},${RCAR_AUTO})
     BL2_SOURCES += drivers/renesas/rzg/pfc/G2M/pfc_init_g2m.c
     BL2_SOURCES += drivers/renesas/rzg/pfc/G2H/pfc_init_g2h.c
+    BL2_SOURCES += drivers/renesas/rzg/pfc/G2N/pfc_init_g2n.c
 
 else ifdef RCAR_LSI_CUT_COMPAT
   ifeq (${RCAR_LSI},${RZ_G2M})
@@ -15,6 +16,9 @@ else ifdef RCAR_LSI_CUT_COMPAT
   ifeq (${RCAR_LSI},${RZ_G2H})
     BL2_SOURCES += drivers/renesas/rzg/pfc/G2H/pfc_init_g2h.c
   endif
+  ifeq (${RCAR_LSI},${RZ_G2N})
+    BL2_SOURCES += drivers/renesas/rzg/pfc/G2N/pfc_init_g2n.c
+  endif
 else
   ifeq (${RCAR_LSI},${RZ_G2M})
     BL2_SOURCES += drivers/renesas/rzg/pfc/G2M/pfc_init_g2m.c
@@ -22,6 +26,9 @@ else
   ifeq (${RCAR_LSI},${RZ_G2H})
     BL2_SOURCES += drivers/renesas/rzg/pfc/G2H/pfc_init_g2h.c
   endif
+  ifeq (${RCAR_LSI},${RZ_G2N})
+    BL2_SOURCES += drivers/renesas/rzg/pfc/G2N/pfc_init_g2n.c
+  endif
 endif
 
 BL2_SOURCES += drivers/renesas/rzg/pfc/pfc_init.c

drivers/renesas/rzg/pfc/pfc_init.c

@@ -11,6 +11,7 @@
 #if RCAR_LSI == RCAR_AUTO
 #include "G2H/pfc_init_g2h.h"
 #include "G2M/pfc_init_g2m.h"
+#include "G2N/pfc_init_g2n.h"
 #endif /* RCAR_LSI == RCAR_AUTO */
 #if (RCAR_LSI == RZ_G2H)
 #include "G2H/pfc_init_g2h.h"
@@ -18,6 +19,9 @@
 #if (RCAR_LSI == RZ_G2M)
 #include "G2M/pfc_init_g2m.h"
 #endif /* RCAR_LSI == RZ_G2M */
+#if (RCAR_LSI == RZ_G2N)
+#include "G2N/pfc_init_g2n.h"
+#endif /* RCAR_LSI == RZ_G2N */
 #include "rcar_def.h"
 
 #define PRR_PRODUCT_ERR(reg)				\
@@ -47,6 +51,9 @@ void rzg_pfc_init(void)
 	case PRR_PRODUCT_H3:
 		pfc_init_g2h();
 		break;
+	case PRR_PRODUCT_M3N:
+		pfc_init_g2n();
+		break;
 	default:
 		PRR_PRODUCT_ERR(reg);
 		break;
@@ -68,6 +75,13 @@ void rzg_pfc_init(void)
 		pfc_init_g2h();
 #endif /* RCAR_LSI != RZ_G2H */
 		break;
+	case PRR_PRODUCT_M3N:
+#if RCAR_LSI != RZ_G2N
+		PRR_PRODUCT_ERR(reg);
+#else
+		pfc_init_g2n();
+#endif /* RCAR_LSI != RZ_G2N */
+		break;
 	default:
 		PRR_PRODUCT_ERR(reg);
 		break;
@@ -84,6 +98,11 @@ void rzg_pfc_init(void)
 		PRR_PRODUCT_ERR(reg);
 	}
 	pfc_init_g2h();
+#elif (RCAR_LSI == RZ_G2N)	/* G2N */
+	if ((reg & PRR_PRODUCT_MASK) != PRR_PRODUCT_M3N) {
+		PRR_PRODUCT_ERR(reg);
+	}
+	pfc_init_g2n();
 #else /* RCAR_LSI == RZ_G2M */
 #error "Don't have PFC initialize routine(unknown)."
 #endif /* RCAR_LSI == RZ_G2M */