Merge tag 'renesas-drivers-for-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/drivers

Renesas ARM Based SoC Drivers Updates for v4.20

* Convert to SPDX identifiers
* R-Car V3M (r8a77970) and V3H (r8a77980): Document Timer Unit (TMU) bindings
* RZ/G1N (r8a7744) and RZ/G1C (r8a77470) SoCs:
  - Document APMU and SMP enable method
* RZ/G2M (r8a74a1), RZ/G1N (r8a7744) and RZ/G2E (r8a774c0) SoCs:
  - Add reset support
  - Add sysc support
* RZ/G2M (r8a774a1), RZ/G2E (r8a774c0) and RZ/A2M (r7s9210) SoCs:
  - Add support for identifying SoC
* RZ/A2M (r7s9210) SoC:
  - Add basic SoC setup support

* tag 'renesas-drivers-for-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (21 commits)
  dt-bindings: apmu: Document r8a7744 support
  dt-bindings: timer: renesas: tmu: document R8A779{7|8}0 bindings
  dt-bindings: apmu: Document r8a77470 support
  soc: renesas: rcar-rst: Add support for RZ/G1N
  dt-bindings: reset: rcar-rst: Document r8a7744 reset module
  soc: renesas: rcar-sysc: Add r8a7744 support
  dt-bindings: power: rcar-sysc: Add r8a7744 power domain index macros
  dt-bindings: power: rcar-sysc: Document r8a7744 SYSC binding
  soc: renesas: rcar-rst: Add support for RZ/G2E
  dt-bindings: reset: rcar-rst: Document r8a774c0 rst
  soc: renesas: rcar-sysc: Add r8a774c0 support
  dt-bindings: power: rcar-sysc: Document r8a774c0 sysc
  dt-bindings: power: Add r8a774c0 SYSC power domain definitions
  soc: renesas: Identify RZ/G2E
  soc: renesas: convert to SPDX identifiers
  soc: renesas: rcar-rst: Add support for RZ/G2M
  soc: renesas: rcar-sysc: Add r8a774a1 support
  dt-bindings: power: Add r8a774a1 SYSC power domain definitions
  soc: renesas: identify RZ/A2
  ARM: shmobile: Add basic RZ/A2 SoC support
  ...

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Documentation/devicetree/bindings/power/renesas,apmu.txt

@@ -8,7 +8,9 @@ Required properties:
 - compatible: Should be "renesas,<soctype>-apmu", "renesas,apmu" as fallback.
 	      Examples with soctypes are:
 		- "renesas,r8a7743-apmu" (RZ/G1M)
+		- "renesas,r8a7744-apmu" (RZ/G1N)
 		- "renesas,r8a7745-apmu" (RZ/G1E)
+		- "renesas,r8a77470-apmu" (RZ/G1C)
 		- "renesas,r8a7790-apmu" (R-Car H2)
 		- "renesas,r8a7791-apmu" (R-Car M2-W)
 		- "renesas,r8a7792-apmu" (R-Car V2H)

Documentation/devicetree/bindings/power/renesas,rcar-sysc.txt

@@ -8,8 +8,11 @@ and various coprocessors.
 Required properties:
   - compatible: Must contain exactly one of the following:
       - "renesas,r8a7743-sysc" (RZ/G1M)
+      - "renesas,r8a7744-sysc" (RZ/G1N)
       - "renesas,r8a7745-sysc" (RZ/G1E)
       - "renesas,r8a77470-sysc" (RZ/G1C)
+      - "renesas,r8a774a1-sysc" (RZ/G2M)
+      - "renesas,r8a774c0-sysc" (RZ/G2E)
       - "renesas,r8a7779-sysc" (R-Car H1)
       - "renesas,r8a7790-sysc" (R-Car H2)
       - "renesas,r8a7791-sysc" (R-Car M2-W)

Documentation/devicetree/bindings/reset/renesas,rst.txt

@@ -16,8 +16,11 @@ Required properties:
 		  - "renesas,<soctype>-rst" for R-Car Gen2 and Gen3, and RZ/G
 		Examples with soctypes are:
 		  - "renesas,r8a7743-rst" (RZ/G1M)
+		  - "renesas,r8a7744-rst" (RZ/G1N)
 		  - "renesas,r8a7745-rst" (RZ/G1E)
 		  - "renesas,r8a77470-rst" (RZ/G1C)
+		  - "renesas,r8a774a1-rst" (RZ/G2M)
+		  - "renesas,r8a774c0-rst" (RZ/G2E)
 		  - "renesas,r8a7778-reset-wdt" (R-Car M1A)
 		  - "renesas,r8a7779-reset-wdt" (R-Car H1)
 		  - "renesas,r8a7790-rst" (R-Car H2)

Documentation/devicetree/bindings/timer/renesas,tmu.txt

@@ -12,6 +12,8 @@ Required Properties:
     - "renesas,tmu-r8a7740" for the r8a7740 TMU
     - "renesas,tmu-r8a7778" for the r8a7778 TMU
     - "renesas,tmu-r8a7779" for the r8a7779 TMU
+    - "renesas,tmu-r8a77970" for the r8a77970 TMU
+    - "renesas,tmu-r8a77980" for the r8a77980 TMU
     - "renesas,tmu" for any TMU.
       This is a fallback for the above renesas,tmu-* entries
 

arch/arm/mach-shmobile/Kconfig

@@ -55,6 +55,12 @@ config ARCH_R7S72100
 	select SYS_SUPPORTS_SH_MTU2
 	select RENESAS_OSTM
 
+config ARCH_R7S9210
+	bool "RZ/A2 (R7S9210)"
+	select PM
+	select PM_GENERIC_DOMAINS
+	select RENESAS_OSTM
+
 config ARCH_R8A73A4
 	bool "R-Mobile APE6 (R8A73A40)"
 	select ARCH_RMOBILE

arch/arm/mach-shmobile/Makefile

@@ -14,6 +14,7 @@ obj-$(CONFIG_ARCH_R8A7778)	+= setup-r8a7778.o
 obj-$(CONFIG_ARCH_R8A7779)	+= setup-r8a7779.o
 obj-$(CONFIG_ARCH_EMEV2)	+= setup-emev2.o
 obj-$(CONFIG_ARCH_R7S72100)	+= setup-r7s72100.o
+obj-$(CONFIG_ARCH_R7S9210)	+= setup-r7s9210.o
 
 # CPU reset vector handling objects
 cpu-y				:= platsmp.o headsmp.o

arch/arm/mach-shmobile/setup-r7s9210.c

@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * r7s9210 processor support
+ *
+ * Copyright (C) 2018  Renesas Electronics Corporation
+ * Copyright (C) 2018  Chris Brandt
+ *
+ */
+
+#include <linux/kernel.h>
+
+#include <asm/mach/arch.h>
+
+#include "common.h"
+
+static const char *const r7s9210_boards_compat_dt[] __initconst = {
+	"renesas,r7s9210",
+	NULL,
+};
+
+DT_MACHINE_START(R7S72100_DT, "Generic R7S9210 (Flattened Device Tree)")
+	.l2c_aux_val    = 0,
+	.l2c_aux_mask   = ~0,
+	.init_early	= shmobile_init_delay,
+	.init_late	= shmobile_init_late,
+	.dt_compat	= r7s9210_boards_compat_dt,
+MACHINE_END

drivers/soc/renesas/Kconfig

@@ -1,14 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0
 config SOC_RENESAS
 	bool "Renesas SoC driver support" if COMPILE_TEST && !ARCH_RENESAS
 	default y if ARCH_RENESAS
 	select SOC_BUS
 	select RST_RCAR if ARCH_RCAR_GEN1 || ARCH_RCAR_GEN2 || \
-			   ARCH_R8A7795 || ARCH_R8A7796 || ARCH_R8A77965 || \
-			   ARCH_R8A77970 || ARCH_R8A77980 || ARCH_R8A77990 || \
-			   ARCH_R8A77995
-	select SYSC_R8A7743 if ARCH_R8A7743
+			   ARCH_R8A774A1 || ARCH_R8A774C0 || ARCH_R8A7795 || \
+			   ARCH_R8A7796 || ARCH_R8A77965 || ARCH_R8A77970 || \
+			   ARCH_R8A77980 || ARCH_R8A77990 || ARCH_R8A77995
+	select SYSC_R8A7743 if ARCH_R8A7743 || ARCH_R8A7744
 	select SYSC_R8A7745 if ARCH_R8A7745
 	select SYSC_R8A77470 if ARCH_R8A77470
+	select SYSC_R8A774A1 if ARCH_R8A774A1
+	select SYSC_R8A774C0 if ARCH_R8A774C0
 	select SYSC_R8A7779 if ARCH_R8A7779
 	select SYSC_R8A7790 if ARCH_R8A7790
 	select SYSC_R8A7791 if ARCH_R8A7791 || ARCH_R8A7793
@@ -37,6 +40,14 @@ config SYSC_R8A77470
 	bool "RZ/G1C System Controller support" if COMPILE_TEST
 	select SYSC_RCAR
 
+config SYSC_R8A774A1
+	bool "RZ/G2M System Controller support" if COMPILE_TEST
+	select SYSC_RCAR
+
+config SYSC_R8A774C0
+	bool "RZ/G2E System Controller support" if COMPILE_TEST
+	select SYSC_RCAR
+
 config SYSC_R8A7779
 	bool "R-Car H1 System Controller support" if COMPILE_TEST
 	select SYSC_RCAR

drivers/soc/renesas/Makefile

@@ -6,6 +6,8 @@ obj-$(CONFIG_SOC_RENESAS)	+= renesas-soc.o
 obj-$(CONFIG_SYSC_R8A7743)	+= r8a7743-sysc.o
 obj-$(CONFIG_SYSC_R8A7745)	+= r8a7745-sysc.o
 obj-$(CONFIG_SYSC_R8A77470)	+= r8a77470-sysc.o
+obj-$(CONFIG_SYSC_R8A774A1)	+= r8a774a1-sysc.o
+obj-$(CONFIG_SYSC_R8A774C0)	+= r8a774c0-sysc.o
 obj-$(CONFIG_SYSC_R8A7779)	+= r8a7779-sysc.o
 obj-$(CONFIG_SYSC_R8A7790)	+= r8a7790-sysc.o
 obj-$(CONFIG_SYSC_R8A7791)	+= r8a7791-sysc.o

drivers/soc/renesas/r8a7743-sysc.c

@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas RZ/G1M System Controller
  *
  * Copyright (C) 2016 Cogent Embedded Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation; of the License.
  */
 
 #include <linux/bug.h>

drivers/soc/renesas/r8a7745-sysc.c

@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas RZ/G1E System Controller
  *
  * Copyright (C) 2016 Cogent Embedded Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation; of the License.
  */
 
 #include <linux/bug.h>

drivers/soc/renesas/r8a774a1-sysc.c

@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Renesas RZ/G2M System Controller
+ * Copyright (C) 2018 Renesas Electronics Corp.
+ *
+ * Based on Renesas R-Car M3-W System Controller
+ * Copyright (C) 2016 Glider bvba
+ */
+
+#include <linux/bug.h>
+#include <linux/kernel.h>
+
+#include <dt-bindings/power/r8a774a1-sysc.h>
+
+#include "rcar-sysc.h"
+
+static const struct rcar_sysc_area r8a774a1_areas[] __initconst = {
+	{ "always-on",	    0, 0, R8A774A1_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+	{ "ca57-scu",	0x1c0, 0, R8A774A1_PD_CA57_SCU,	R8A774A1_PD_ALWAYS_ON,
+	  PD_SCU },
+	{ "ca57-cpu0",	 0x80, 0, R8A774A1_PD_CA57_CPU0, R8A774A1_PD_CA57_SCU,
+	  PD_CPU_NOCR },
+	{ "ca57-cpu1",	 0x80, 1, R8A774A1_PD_CA57_CPU1, R8A774A1_PD_CA57_SCU,
+	  PD_CPU_NOCR },
+	{ "ca53-scu",	0x140, 0, R8A774A1_PD_CA53_SCU,	R8A774A1_PD_ALWAYS_ON,
+	  PD_SCU },
+	{ "ca53-cpu0",	0x200, 0, R8A774A1_PD_CA53_CPU0, R8A774A1_PD_CA53_SCU,
+	  PD_CPU_NOCR },
+	{ "ca53-cpu1",	0x200, 1, R8A774A1_PD_CA53_CPU1, R8A774A1_PD_CA53_SCU,
+	  PD_CPU_NOCR },
+	{ "ca53-cpu2",	0x200, 2, R8A774A1_PD_CA53_CPU2, R8A774A1_PD_CA53_SCU,
+	  PD_CPU_NOCR },
+	{ "ca53-cpu3",	0x200, 3, R8A774A1_PD_CA53_CPU3, R8A774A1_PD_CA53_SCU,
+	  PD_CPU_NOCR },
+	{ "a3vc",	0x380, 0, R8A774A1_PD_A3VC,	R8A774A1_PD_ALWAYS_ON },
+	{ "a2vc0",	0x3c0, 0, R8A774A1_PD_A2VC0,	R8A774A1_PD_A3VC },
+	{ "a2vc1",	0x3c0, 1, R8A774A1_PD_A2VC1,	R8A774A1_PD_A3VC },
+	{ "3dg-a",	0x100, 0, R8A774A1_PD_3DG_A,	R8A774A1_PD_ALWAYS_ON },
+	{ "3dg-b",	0x100, 1, R8A774A1_PD_3DG_B,	R8A774A1_PD_3DG_A },
+};
+
+const struct rcar_sysc_info r8a774a1_sysc_info __initconst = {
+	.areas = r8a774a1_areas,
+	.num_areas = ARRAY_SIZE(r8a774a1_areas),
+};

drivers/soc/renesas/r8a774c0-sysc.c

@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Renesas RZ/G2E System Controller
+ * Copyright (C) 2018 Renesas Electronics Corp.
+ *
+ * Based on Renesas R-Car E3 System Controller
+ */
+
+#include <linux/bug.h>
+#include <linux/kernel.h>
+#include <linux/sys_soc.h>
+
+#include <dt-bindings/power/r8a774c0-sysc.h>
+
+#include "rcar-sysc.h"
+
+static struct rcar_sysc_area r8a774c0_areas[] __initdata = {
+	{ "always-on",	    0, 0, R8A774C0_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+	{ "ca53-scu",	0x140, 0, R8A774C0_PD_CA53_SCU,  R8A774C0_PD_ALWAYS_ON,
+	  PD_SCU },
+	{ "ca53-cpu0",	0x200, 0, R8A774C0_PD_CA53_CPU0, R8A774C0_PD_CA53_SCU,
+	  PD_CPU_NOCR },
+	{ "ca53-cpu1",	0x200, 1, R8A774C0_PD_CA53_CPU1, R8A774C0_PD_CA53_SCU,
+	  PD_CPU_NOCR },
+	{ "a3vc",	0x380, 0, R8A774C0_PD_A3VC,	R8A774C0_PD_ALWAYS_ON },
+	{ "a2vc1",	0x3c0, 1, R8A774C0_PD_A2VC1,	R8A774C0_PD_A3VC },
+	{ "3dg-a",	0x100, 0, R8A774C0_PD_3DG_A,	R8A774C0_PD_ALWAYS_ON },
+	{ "3dg-b",	0x100, 1, R8A774C0_PD_3DG_B,	R8A774C0_PD_3DG_A },
+};
+
+static void __init rcar_sysc_fix_parent(struct rcar_sysc_area *areas,
+					unsigned int num_areas, u8 id,
+					int new_parent)
+{
+	unsigned int i;
+
+	for (i = 0; i < num_areas; i++)
+		if (areas[i].isr_bit == id) {
+			areas[i].parent = new_parent;
+			return;
+		}
+}
+
+/* Fixups for RZ/G2E ES1.0 revision */
+static const struct soc_device_attribute r8a774c0[] __initconst = {
+	{ .soc_id = "r8a774c0", .revision = "ES1.0" },
+	{ /* sentinel */ }
+};
+
+static int __init r8a774c0_sysc_init(void)
+{
+	if (soc_device_match(r8a774c0)) {
+		rcar_sysc_fix_parent(r8a774c0_areas,
+				     ARRAY_SIZE(r8a774c0_areas),
+				     R8A774C0_PD_3DG_A, R8A774C0_PD_3DG_B);
+		rcar_sysc_fix_parent(r8a774c0_areas,
+				     ARRAY_SIZE(r8a774c0_areas),
+				     R8A774C0_PD_3DG_B, R8A774C0_PD_ALWAYS_ON);
+	}
+
+	return 0;
+}
+
+const struct rcar_sysc_info r8a774c0_sysc_info __initconst = {
+	.init = r8a774c0_sysc_init,
+	.areas = r8a774c0_areas,
+	.num_areas = ARRAY_SIZE(r8a774c0_areas),
+};

drivers/soc/renesas/r8a7779-sysc.c

@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas R-Car H1 System Controller
  *
  * Copyright (C) 2016 Glider bvba
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 
 #include <linux/bug.h>

drivers/soc/renesas/r8a7790-sysc.c

@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas R-Car H2 System Controller
  *
  * Copyright (C) 2016 Glider bvba
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 
 #include <linux/bug.h>

drivers/soc/renesas/r8a7791-sysc.c

@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas R-Car M2-W/N System Controller
  *
  * Copyright (C) 2016 Glider bvba
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 
 #include <linux/bug.h>

drivers/soc/renesas/r8a7792-sysc.c

@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas R-Car V2H (R8A7792) System Controller
  *
  * Copyright (C) 2016 Cogent Embedded Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 
 #include <linux/bug.h>

drivers/soc/renesas/r8a7794-sysc.c

@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas R-Car E2 System Controller
  *
  * Copyright (C) 2016 Glider bvba
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 
 #include <linux/bug.h>

drivers/soc/renesas/r8a7795-sysc.c

@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas R-Car H3 System Controller
  *
  * Copyright (C) 2016-2017 Glider bvba
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 
 #include <linux/bug.h>

drivers/soc/renesas/r8a7796-sysc.c

@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas R-Car M3-W System Controller
  *
  * Copyright (C) 2016 Glider bvba
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 
 #include <linux/bug.h>

drivers/soc/renesas/r8a77970-sysc.c

@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas R-Car V3M System Controller
  *
  * Copyright (C) 2017 Cogent Embedded Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/bug.h>

drivers/soc/renesas/r8a77995-sysc.c

@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas R-Car D3 System Controller
  *
  * Copyright (C) 2017 Glider bvba
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 
 #include <linux/bug.h>

drivers/soc/renesas/rcar-rst.c

@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * R-Car Gen1 RESET/WDT, R-Car Gen2, Gen3, and RZ/G RST Driver
  *
  * Copyright (C) 2016 Glider bvba
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 
 #include <linux/err.h>
@@ -41,10 +38,14 @@ static const struct rst_config rcar_rst_gen3 __initconst = {
 };
 
 static const struct of_device_id rcar_rst_matches[] __initconst = {
-	/* RZ/G is handled like R-Car Gen2 */
+	/* RZ/G1 is handled like R-Car Gen2 */
 	{ .compatible = "renesas,r8a7743-rst", .data = &rcar_rst_gen2 },
+	{ .compatible = "renesas,r8a7744-rst", .data = &rcar_rst_gen2 },
 	{ .compatible = "renesas,r8a7745-rst", .data = &rcar_rst_gen2 },
 	{ .compatible = "renesas,r8a77470-rst", .data = &rcar_rst_gen2 },
+	/* RZ/G2 is handled like R-Car Gen3 */
+	{ .compatible = "renesas,r8a774a1-rst", .data = &rcar_rst_gen3 },
+	{ .compatible = "renesas,r8a774c0-rst", .data = &rcar_rst_gen3 },
 	/* R-Car Gen1 */
 	{ .compatible = "renesas,r8a7778-reset-wdt", .data = &rcar_rst_gen1 },
 	{ .compatible = "renesas,r8a7779-reset-wdt", .data = &rcar_rst_gen1 },

drivers/soc/renesas/rcar-sysc.c

@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * R-Car SYSC Power management support
  *
  * Copyright (C) 2014  Magnus Damm
  * Copyright (C) 2015-2017 Glider bvba
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 
 #include <linux/clk/renesas.h>
@@ -268,6 +265,8 @@ finalize:
 static const struct of_device_id rcar_sysc_matches[] __initconst = {
 #ifdef CONFIG_SYSC_R8A7743
 	{ .compatible = "renesas,r8a7743-sysc", .data = &r8a7743_sysc_info },
+	/* RZ/G1N is identical to RZ/G2M w.r.t. power domains. */
+	{ .compatible = "renesas,r8a7744-sysc", .data = &r8a7743_sysc_info },
 #endif
 #ifdef CONFIG_SYSC_R8A7745
 	{ .compatible = "renesas,r8a7745-sysc", .data = &r8a7745_sysc_info },
@@ -275,6 +274,12 @@ static const struct of_device_id rcar_sysc_matches[] __initconst = {
 #ifdef CONFIG_SYSC_R8A77470
 	{ .compatible = "renesas,r8a77470-sysc", .data = &r8a77470_sysc_info },
 #endif
+#ifdef CONFIG_SYSC_R8A774A1
+	{ .compatible = "renesas,r8a774a1-sysc", .data = &r8a774a1_sysc_info },
+#endif
+#ifdef CONFIG_SYSC_R8A774C0
+	{ .compatible = "renesas,r8a774c0-sysc", .data = &r8a774c0_sysc_info },
+#endif
 #ifdef CONFIG_SYSC_R8A7779
 	{ .compatible = "renesas,r8a7779-sysc", .data = &r8a7779_sysc_info },
 #endif

drivers/soc/renesas/rcar-sysc.h

@@ -1,11 +1,8 @@
-/*
+/* SPDX-License-Identifier: GPL-2.0
+ *
  * Renesas R-Car System Controller
  *
  * Copyright (C) 2016 Glider bvba
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 #ifndef __SOC_RENESAS_RCAR_SYSC_H__
 #define __SOC_RENESAS_RCAR_SYSC_H__
@@ -52,6 +49,8 @@ struct rcar_sysc_info {
 extern const struct rcar_sysc_info r8a7743_sysc_info;
 extern const struct rcar_sysc_info r8a7745_sysc_info;
 extern const struct rcar_sysc_info r8a77470_sysc_info;
+extern const struct rcar_sysc_info r8a774a1_sysc_info;
+extern const struct rcar_sysc_info r8a774c0_sysc_info;
 extern const struct rcar_sysc_info r8a7779_sysc_info;
 extern const struct rcar_sysc_info r8a7790_sysc_info;
 extern const struct rcar_sysc_info r8a7791_sysc_info;

drivers/soc/renesas/renesas-soc.c

@@ -1,16 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas SoC Identification
  *
  * Copyright (C) 2014-2016 Glider bvba
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/io.h>
@@ -46,15 +38,24 @@ static const struct renesas_family fam_rmobile __initconst __maybe_unused = {
 	.reg	= 0xe600101c,		/* CCCR (Common Chip Code Register) */
 };
 
-static const struct renesas_family fam_rza __initconst __maybe_unused = {
-	.name	= "RZ/A",
+static const struct renesas_family fam_rza1 __initconst __maybe_unused = {
+	.name	= "RZ/A1",
+};
+
+static const struct renesas_family fam_rza2 __initconst __maybe_unused = {
+	.name	= "RZ/A2",
 };
 
-static const struct renesas_family fam_rzg __initconst __maybe_unused = {
-	.name	= "RZ/G",
+static const struct renesas_family fam_rzg1 __initconst __maybe_unused = {
+	.name	= "RZ/G1",
 	.reg	= 0xff000044,		/* PRR (Product Register) */
 };
 
+static const struct renesas_family fam_rzg2 __initconst __maybe_unused = {
+	.name	= "RZ/G2",
+	.reg	= 0xfff00044,		/* PRR (Product Register) */
+};
+
 static const struct renesas_family fam_shmobile __initconst __maybe_unused = {
 	.name	= "SH-Mobile",
 	.reg	= 0xe600101c,		/* CCCR (Common Chip Code Register) */
@@ -67,7 +68,12 @@ struct renesas_soc {
 };
 
 static const struct renesas_soc soc_rz_a1h __initconst __maybe_unused = {
-	.family	= &fam_rza,
+	.family	= &fam_rza1,
+};
+
+static const struct renesas_soc soc_rz_a2m __initconst __maybe_unused = {
+	.family	= &fam_rza2,
+	.id	= 0x3b,
 };
 
 static const struct renesas_soc soc_rmobile_ape6 __initconst __maybe_unused = {
@@ -81,30 +87,40 @@ static const struct renesas_soc soc_rmobile_a1 __initconst __maybe_unused = {
 };
 
 static const struct renesas_soc soc_rz_g1h __initconst __maybe_unused = {
-	.family	= &fam_rzg,
+	.family	= &fam_rzg1,
 	.id	= 0x45,
 };
 
 static const struct renesas_soc soc_rz_g1m __initconst __maybe_unused = {
-	.family	= &fam_rzg,
+	.family	= &fam_rzg1,
 	.id	= 0x47,
 };
 
 static const struct renesas_soc soc_rz_g1n __initconst __maybe_unused = {
-	.family	= &fam_rzg,
+	.family	= &fam_rzg1,
 	.id	= 0x4b,
 };
 
 static const struct renesas_soc soc_rz_g1e __initconst __maybe_unused = {
-	.family	= &fam_rzg,
+	.family	= &fam_rzg1,
 	.id	= 0x4c,
 };
 
 static const struct renesas_soc soc_rz_g1c __initconst __maybe_unused = {
-	.family	= &fam_rzg,
+	.family	= &fam_rzg1,
 	.id	= 0x53,
 };
 
+static const struct renesas_soc soc_rz_g2m __initconst __maybe_unused = {
+	.family	= &fam_rzg2,
+	.id	= 0x52,
+};
+
+static const struct renesas_soc soc_rz_g2e __initconst __maybe_unused = {
+	.family	= &fam_rzg2,
+	.id	= 0x57,
+};
+
 static const struct renesas_soc soc_rcar_m1a __initconst __maybe_unused = {
 	.family	= &fam_rcar_gen1,
 };
@@ -184,6 +200,9 @@ static const struct of_device_id renesas_socs[] __initconst = {
 #ifdef CONFIG_ARCH_R7S72100
 	{ .compatible = "renesas,r7s72100",	.data = &soc_rz_a1h },
 #endif
+#ifdef CONFIG_ARCH_R7S9210
+	{ .compatible = "renesas,r7s9210",	.data = &soc_rz_a2m },
+#endif
 #ifdef CONFIG_ARCH_R8A73A4
 	{ .compatible = "renesas,r8a73a4",	.data = &soc_rmobile_ape6 },
 #endif
@@ -205,6 +224,12 @@ static const struct of_device_id renesas_socs[] __initconst = {
 #ifdef CONFIG_ARCH_R8A77470
 	{ .compatible = "renesas,r8a77470",	.data = &soc_rz_g1c },
 #endif
+#ifdef CONFIG_ARCH_R8A774A1
+	{ .compatible = "renesas,r8a774a1",	.data = &soc_rz_g2m },
+#endif
+#ifdef CONFIG_ARCH_R8A774C0
+	{ .compatible = "renesas,r8a774c0",	.data = &soc_rz_g2e },
+#endif
 #ifdef CONFIG_ARCH_R8A7778
 	{ .compatible = "renesas,r8a7778",	.data = &soc_rcar_m1a },
 #endif
@@ -262,7 +287,7 @@ static int __init renesas_soc_init(void)
 	void __iomem *chipid = NULL;
 	struct soc_device *soc_dev;
 	struct device_node *np;
-	unsigned int product;
+	unsigned int product, eshi = 0, eslo;
 
 	match = of_match_node(renesas_socs, of_root);
 	if (!match)
@@ -271,6 +296,31 @@ static int __init renesas_soc_init(void)
 	soc = match->data;
 	family = soc->family;
 
+	np = of_find_compatible_node(NULL, NULL, "renesas,bsid");
+	if (np) {
+		chipid = of_iomap(np, 0);
+		of_node_put(np);
+
+		if (chipid) {
+			product = readl(chipid);
+			iounmap(chipid);
+
+			if (soc->id && ((product >> 16) & 0xff) != soc->id) {
+				pr_warn("SoC mismatch (product = 0x%x)\n",
+					product);
+				return -ENODEV;
+			}
+		}
+
+		/*
+		 * TODO: Upper 4 bits of BSID are for chip version, but the
+		 * format is not known at this time so we don't know how to
+		 * specify eshi and eslo
+		 */
+
+		goto done;
+	}
+
 	/* Try PRR first, then hardcoded fallback */
 	np = of_find_compatible_node(NULL, NULL, "renesas,prr");
 	if (np) {
@@ -289,8 +339,11 @@ static int __init renesas_soc_init(void)
 			pr_warn("SoC mismatch (product = 0x%x)\n", product);
 			return -ENODEV;
 		}
+		eshi = ((product >> 4) & 0x0f) + 1;
+		eslo = product & 0xf;
 	}
 
+done:
 	soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
 	if (!soc_dev_attr)
 		return -ENOMEM;
@@ -302,10 +355,9 @@ static int __init renesas_soc_init(void)
 	soc_dev_attr->family = kstrdup_const(family->name, GFP_KERNEL);
 	soc_dev_attr->soc_id = kstrdup_const(strchr(match->compatible, ',') + 1,
 					     GFP_KERNEL);
-	if (chipid)
-		soc_dev_attr->revision = kasprintf(GFP_KERNEL, "ES%u.%u",
-						   ((product >> 4) & 0x0f) + 1,
-						   product & 0xf);
+	if (eshi)
+		soc_dev_attr->revision = kasprintf(GFP_KERNEL, "ES%u.%u", eshi,
+						   eslo);
 
 	pr_info("Detected Renesas %s %s %s\n", soc_dev_attr->family,
 		soc_dev_attr->soc_id, soc_dev_attr->revision ?: "");

include/dt-bindings/power/r8a7744-sysc.h

@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (C) 2018 Renesas Electronics Corp.
+ */
+#ifndef __DT_BINDINGS_POWER_R8A7744_SYSC_H__
+#define __DT_BINDINGS_POWER_R8A7744_SYSC_H__
+
+/*
+ * These power domain indices match the numbers of the interrupt bits
+ * representing the power areas in the various Interrupt Registers
+ * (e.g. SYSCISR, Interrupt Status Register)
+ *
+ * Note that RZ/G1N is identical to RZ/G2M w.r.t. power domains.
+ */
+
+#define R8A7744_PD_CA15_CPU0		 0
+#define R8A7744_PD_CA15_CPU1		 1
+#define R8A7744_PD_CA15_SCU		12
+#define R8A7744_PD_SGX			20
+
+/* Always-on power area */
+#define R8A7744_PD_ALWAYS_ON		32
+
+#endif /* __DT_BINDINGS_POWER_R8A7744_SYSC_H__ */

include/dt-bindings/power/r8a774a1-sysc.h

@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (C) 2018 Renesas Electronics Corp.
+ */
+#ifndef __DT_BINDINGS_POWER_R8A774A1_SYSC_H__
+#define __DT_BINDINGS_POWER_R8A774A1_SYSC_H__
+
+/*
+ * These power domain indices match the numbers of the interrupt bits
+ * representing the power areas in the various Interrupt Registers
+ * (e.g. SYSCISR, Interrupt Status Register)
+ */
+
+#define R8A774A1_PD_CA57_CPU0		 0
+#define R8A774A1_PD_CA57_CPU1		 1
+#define R8A774A1_PD_CA53_CPU0		 5
+#define R8A774A1_PD_CA53_CPU1		 6
+#define R8A774A1_PD_CA53_CPU2		 7
+#define R8A774A1_PD_CA53_CPU3		 8
+#define R8A774A1_PD_CA57_SCU		12
+#define R8A774A1_PD_A3VC		14
+#define R8A774A1_PD_3DG_A		17
+#define R8A774A1_PD_3DG_B		18
+#define R8A774A1_PD_CA53_SCU		21
+#define R8A774A1_PD_A2VC0		25
+#define R8A774A1_PD_A2VC1		26
+
+/* Always-on power area */
+#define R8A774A1_PD_ALWAYS_ON		32
+
+#endif /* __DT_BINDINGS_POWER_R8A774A1_SYSC_H__ */

include/dt-bindings/power/r8a774c0-sysc.h

@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (C) 2018 Renesas Electronics Corp.
+ */
+#ifndef __DT_BINDINGS_POWER_R8A774C0_SYSC_H__
+#define __DT_BINDINGS_POWER_R8A774C0_SYSC_H__
+
+/*
+ * These power domain indices match the numbers of the interrupt bits
+ * representing the power areas in the various Interrupt Registers
+ * (e.g. SYSCISR, Interrupt Status Register)
+ */
+
+#define R8A774C0_PD_CA53_CPU0		5
+#define R8A774C0_PD_CA53_CPU1		6
+#define R8A774C0_PD_A3VC		14
+#define R8A774C0_PD_3DG_A		17
+#define R8A774C0_PD_3DG_B		18
+#define R8A774C0_PD_CA53_SCU		21
+#define R8A774C0_PD_A2VC1		26
+
+/* Always-on power area */
+#define R8A774C0_PD_ALWAYS_ON		32
+
+#endif /* __DT_BINDINGS_POWER_R8A774C0_SYSC_H__ */