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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
commit76cb841cb886eef6b3bee341a2266c76578724ad (patch)
treef5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /drivers/soc/renesas
parentInitial commit. (diff)
downloadlinux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz
linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/soc/renesas')
-rw-r--r--drivers/soc/renesas/Kconfig95
-rw-r--r--drivers/soc/renesas/Makefile27
-rw-r--r--drivers/soc/renesas/r8a7743-sysc.c32
-rw-r--r--drivers/soc/renesas/r8a7745-sysc.c32
-rw-r--r--drivers/soc/renesas/r8a77470-sysc.c29
-rw-r--r--drivers/soc/renesas/r8a7779-sysc.c34
-rw-r--r--drivers/soc/renesas/r8a7790-sysc.c48
-rw-r--r--drivers/soc/renesas/r8a7791-sysc.c33
-rw-r--r--drivers/soc/renesas/r8a7792-sysc.c34
-rw-r--r--drivers/soc/renesas/r8a7794-sysc.c33
-rw-r--r--drivers/soc/renesas/r8a7795-sysc.c78
-rw-r--r--drivers/soc/renesas/r8a7796-sysc.c48
-rw-r--r--drivers/soc/renesas/r8a77965-sysc.c37
-rw-r--r--drivers/soc/renesas/r8a77970-sysc.c39
-rw-r--r--drivers/soc/renesas/r8a77980-sysc.c52
-rw-r--r--drivers/soc/renesas/r8a77990-sysc.c53
-rw-r--r--drivers/soc/renesas/r8a77995-sysc.c30
-rw-r--r--drivers/soc/renesas/r9a06g032-smp.c96
-rw-r--r--drivers/soc/renesas/rcar-rst.c121
-rw-r--r--drivers/soc/renesas/rcar-sysc.c492
-rw-r--r--drivers/soc/renesas/rcar-sysc.h76
-rw-r--r--drivers/soc/renesas/renesas-soc.c327
22 files changed, 1846 insertions, 0 deletions
diff --git a/drivers/soc/renesas/Kconfig b/drivers/soc/renesas/Kconfig
new file mode 100644
index 000000000..1d824cbd4
--- /dev/null
+++ b/drivers/soc/renesas/Kconfig
@@ -0,0 +1,95 @@
+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
+ select SYSC_R8A7745 if ARCH_R8A7745
+ select SYSC_R8A77470 if ARCH_R8A77470
+ select SYSC_R8A7779 if ARCH_R8A7779
+ select SYSC_R8A7790 if ARCH_R8A7790
+ select SYSC_R8A7791 if ARCH_R8A7791 || ARCH_R8A7793
+ select SYSC_R8A7792 if ARCH_R8A7792
+ select SYSC_R8A7794 if ARCH_R8A7794
+ select SYSC_R8A7795 if ARCH_R8A7795
+ select SYSC_R8A7796 if ARCH_R8A7796
+ select SYSC_R8A77965 if ARCH_R8A77965
+ select SYSC_R8A77970 if ARCH_R8A77970
+ select SYSC_R8A77980 if ARCH_R8A77980
+ select SYSC_R8A77990 if ARCH_R8A77990
+ select SYSC_R8A77995 if ARCH_R8A77995
+
+if SOC_RENESAS
+
+# SoC
+config SYSC_R8A7743
+ bool "RZ/G1M System Controller support" if COMPILE_TEST
+ select SYSC_RCAR
+
+config SYSC_R8A7745
+ bool "RZ/G1E System Controller support" if COMPILE_TEST
+ select SYSC_RCAR
+
+config SYSC_R8A77470
+ bool "RZ/G1C 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
+
+config SYSC_R8A7790
+ bool "R-Car H2 System Controller support" if COMPILE_TEST
+ select SYSC_RCAR
+
+config SYSC_R8A7791
+ bool "R-Car M2-W/N System Controller support" if COMPILE_TEST
+ select SYSC_RCAR
+
+config SYSC_R8A7792
+ bool "R-Car V2H System Controller support" if COMPILE_TEST
+ select SYSC_RCAR
+
+config SYSC_R8A7794
+ bool "R-Car E2 System Controller support" if COMPILE_TEST
+ select SYSC_RCAR
+
+config SYSC_R8A7795
+ bool "R-Car H3 System Controller support" if COMPILE_TEST
+ select SYSC_RCAR
+
+config SYSC_R8A7796
+ bool "R-Car M3-W System Controller support" if COMPILE_TEST
+ select SYSC_RCAR
+
+config SYSC_R8A77965
+ bool "R-Car M3-N System Controller support" if COMPILE_TEST
+ select SYSC_RCAR
+
+config SYSC_R8A77970
+ bool "R-Car V3M System Controller support" if COMPILE_TEST
+ select SYSC_RCAR
+
+config SYSC_R8A77980
+ bool "R-Car V3H System Controller support" if COMPILE_TEST
+ select SYSC_RCAR
+
+config SYSC_R8A77990
+ bool "R-Car E3 System Controller support" if COMPILE_TEST
+ select SYSC_RCAR
+
+config SYSC_R8A77995
+ bool "R-Car D3 System Controller support" if COMPILE_TEST
+ select SYSC_RCAR
+
+# Family
+config RST_RCAR
+ bool "R-Car Reset Controller support" if COMPILE_TEST
+
+config SYSC_RCAR
+ bool "R-Car System Controller support" if COMPILE_TEST
+
+endif # SOC_RENESAS
diff --git a/drivers/soc/renesas/Makefile b/drivers/soc/renesas/Makefile
new file mode 100644
index 000000000..c37b0803c
--- /dev/null
+++ b/drivers/soc/renesas/Makefile
@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: GPL-2.0
+# Generic, must be first because of soc_device_register()
+obj-$(CONFIG_SOC_RENESAS) += renesas-soc.o
+
+# SoC
+obj-$(CONFIG_SYSC_R8A7743) += r8a7743-sysc.o
+obj-$(CONFIG_SYSC_R8A7745) += r8a7745-sysc.o
+obj-$(CONFIG_SYSC_R8A77470) += r8a77470-sysc.o
+obj-$(CONFIG_SYSC_R8A7779) += r8a7779-sysc.o
+obj-$(CONFIG_SYSC_R8A7790) += r8a7790-sysc.o
+obj-$(CONFIG_SYSC_R8A7791) += r8a7791-sysc.o
+obj-$(CONFIG_SYSC_R8A7792) += r8a7792-sysc.o
+obj-$(CONFIG_SYSC_R8A7794) += r8a7794-sysc.o
+obj-$(CONFIG_SYSC_R8A7795) += r8a7795-sysc.o
+obj-$(CONFIG_SYSC_R8A7796) += r8a7796-sysc.o
+obj-$(CONFIG_SYSC_R8A77965) += r8a77965-sysc.o
+obj-$(CONFIG_SYSC_R8A77970) += r8a77970-sysc.o
+obj-$(CONFIG_SYSC_R8A77980) += r8a77980-sysc.o
+obj-$(CONFIG_SYSC_R8A77990) += r8a77990-sysc.o
+obj-$(CONFIG_SYSC_R8A77995) += r8a77995-sysc.o
+ifdef CONFIG_SMP
+obj-$(CONFIG_ARCH_R9A06G032) += r9a06g032-smp.o
+endif
+
+# Family
+obj-$(CONFIG_RST_RCAR) += rcar-rst.o
+obj-$(CONFIG_SYSC_RCAR) += rcar-sysc.o
diff --git a/drivers/soc/renesas/r8a7743-sysc.c b/drivers/soc/renesas/r8a7743-sysc.c
new file mode 100644
index 000000000..9583a327d
--- /dev/null
+++ b/drivers/soc/renesas/r8a7743-sysc.c
@@ -0,0 +1,32 @@
+/*
+ * 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>
+#include <linux/kernel.h>
+
+#include <dt-bindings/power/r8a7743-sysc.h>
+
+#include "rcar-sysc.h"
+
+static const struct rcar_sysc_area r8a7743_areas[] __initconst = {
+ { "always-on", 0, 0, R8A7743_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+ { "ca15-scu", 0x180, 0, R8A7743_PD_CA15_SCU, R8A7743_PD_ALWAYS_ON,
+ PD_SCU },
+ { "ca15-cpu0", 0x40, 0, R8A7743_PD_CA15_CPU0, R8A7743_PD_CA15_SCU,
+ PD_CPU_NOCR },
+ { "ca15-cpu1", 0x40, 1, R8A7743_PD_CA15_CPU1, R8A7743_PD_CA15_SCU,
+ PD_CPU_NOCR },
+ { "sgx", 0xc0, 0, R8A7743_PD_SGX, R8A7743_PD_ALWAYS_ON },
+};
+
+const struct rcar_sysc_info r8a7743_sysc_info __initconst = {
+ .areas = r8a7743_areas,
+ .num_areas = ARRAY_SIZE(r8a7743_areas),
+};
diff --git a/drivers/soc/renesas/r8a7745-sysc.c b/drivers/soc/renesas/r8a7745-sysc.c
new file mode 100644
index 000000000..d17887c08
--- /dev/null
+++ b/drivers/soc/renesas/r8a7745-sysc.c
@@ -0,0 +1,32 @@
+/*
+ * 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>
+#include <linux/kernel.h>
+
+#include <dt-bindings/power/r8a7745-sysc.h>
+
+#include "rcar-sysc.h"
+
+static const struct rcar_sysc_area r8a7745_areas[] __initconst = {
+ { "always-on", 0, 0, R8A7745_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+ { "ca7-scu", 0x100, 0, R8A7745_PD_CA7_SCU, R8A7745_PD_ALWAYS_ON,
+ PD_SCU },
+ { "ca7-cpu0", 0x1c0, 0, R8A7745_PD_CA7_CPU0, R8A7745_PD_CA7_SCU,
+ PD_CPU_NOCR },
+ { "ca7-cpu1", 0x1c0, 1, R8A7745_PD_CA7_CPU1, R8A7745_PD_CA7_SCU,
+ PD_CPU_NOCR },
+ { "sgx", 0xc0, 0, R8A7745_PD_SGX, R8A7745_PD_ALWAYS_ON },
+};
+
+const struct rcar_sysc_info r8a7745_sysc_info __initconst = {
+ .areas = r8a7745_areas,
+ .num_areas = ARRAY_SIZE(r8a7745_areas),
+};
diff --git a/drivers/soc/renesas/r8a77470-sysc.c b/drivers/soc/renesas/r8a77470-sysc.c
new file mode 100644
index 000000000..cfa015e20
--- /dev/null
+++ b/drivers/soc/renesas/r8a77470-sysc.c
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Renesas RZ/G1C System Controller
+ *
+ * Copyright (C) 2018 Renesas Electronics Corp.
+ */
+
+#include <linux/bug.h>
+#include <linux/kernel.h>
+
+#include <dt-bindings/power/r8a77470-sysc.h>
+
+#include "rcar-sysc.h"
+
+static const struct rcar_sysc_area r8a77470_areas[] __initconst = {
+ { "always-on", 0, 0, R8A77470_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+ { "ca7-scu", 0x100, 0, R8A77470_PD_CA7_SCU, R8A77470_PD_ALWAYS_ON,
+ PD_SCU },
+ { "ca7-cpu0", 0x1c0, 0, R8A77470_PD_CA7_CPU0, R8A77470_PD_CA7_SCU,
+ PD_CPU_NOCR },
+ { "ca7-cpu1", 0x1c0, 1, R8A77470_PD_CA7_CPU1, R8A77470_PD_CA7_SCU,
+ PD_CPU_NOCR },
+ { "sgx", 0xc0, 0, R8A77470_PD_SGX, R8A77470_PD_ALWAYS_ON },
+};
+
+const struct rcar_sysc_info r8a77470_sysc_info __initconst = {
+ .areas = r8a77470_areas,
+ .num_areas = ARRAY_SIZE(r8a77470_areas),
+};
diff --git a/drivers/soc/renesas/r8a7779-sysc.c b/drivers/soc/renesas/r8a7779-sysc.c
new file mode 100644
index 000000000..9e8e6b7fa
--- /dev/null
+++ b/drivers/soc/renesas/r8a7779-sysc.c
@@ -0,0 +1,34 @@
+/*
+ * 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>
+#include <linux/kernel.h>
+
+#include <dt-bindings/power/r8a7779-sysc.h>
+
+#include "rcar-sysc.h"
+
+static const struct rcar_sysc_area r8a7779_areas[] __initconst = {
+ { "always-on", 0, 0, R8A7779_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+ { "arm1", 0x40, 1, R8A7779_PD_ARM1, R8A7779_PD_ALWAYS_ON,
+ PD_CPU_CR },
+ { "arm2", 0x40, 2, R8A7779_PD_ARM2, R8A7779_PD_ALWAYS_ON,
+ PD_CPU_CR },
+ { "arm3", 0x40, 3, R8A7779_PD_ARM3, R8A7779_PD_ALWAYS_ON,
+ PD_CPU_CR },
+ { "sgx", 0xc0, 0, R8A7779_PD_SGX, R8A7779_PD_ALWAYS_ON },
+ { "vdp", 0x100, 0, R8A7779_PD_VDP, R8A7779_PD_ALWAYS_ON },
+ { "imp", 0x140, 0, R8A7779_PD_IMP, R8A7779_PD_ALWAYS_ON },
+};
+
+const struct rcar_sysc_info r8a7779_sysc_info __initconst = {
+ .areas = r8a7779_areas,
+ .num_areas = ARRAY_SIZE(r8a7779_areas),
+};
diff --git a/drivers/soc/renesas/r8a7790-sysc.c b/drivers/soc/renesas/r8a7790-sysc.c
new file mode 100644
index 000000000..7a567ad0f
--- /dev/null
+++ b/drivers/soc/renesas/r8a7790-sysc.c
@@ -0,0 +1,48 @@
+/*
+ * 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>
+#include <linux/kernel.h>
+
+#include <dt-bindings/power/r8a7790-sysc.h>
+
+#include "rcar-sysc.h"
+
+static const struct rcar_sysc_area r8a7790_areas[] __initconst = {
+ { "always-on", 0, 0, R8A7790_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+ { "ca15-scu", 0x180, 0, R8A7790_PD_CA15_SCU, R8A7790_PD_ALWAYS_ON,
+ PD_SCU },
+ { "ca15-cpu0", 0x40, 0, R8A7790_PD_CA15_CPU0, R8A7790_PD_CA15_SCU,
+ PD_CPU_NOCR },
+ { "ca15-cpu1", 0x40, 1, R8A7790_PD_CA15_CPU1, R8A7790_PD_CA15_SCU,
+ PD_CPU_NOCR },
+ { "ca15-cpu2", 0x40, 2, R8A7790_PD_CA15_CPU2, R8A7790_PD_CA15_SCU,
+ PD_CPU_NOCR },
+ { "ca15-cpu3", 0x40, 3, R8A7790_PD_CA15_CPU3, R8A7790_PD_CA15_SCU,
+ PD_CPU_NOCR },
+ { "ca7-scu", 0x100, 0, R8A7790_PD_CA7_SCU, R8A7790_PD_ALWAYS_ON,
+ PD_SCU },
+ { "ca7-cpu0", 0x1c0, 0, R8A7790_PD_CA7_CPU0, R8A7790_PD_CA7_SCU,
+ PD_CPU_NOCR },
+ { "ca7-cpu1", 0x1c0, 1, R8A7790_PD_CA7_CPU1, R8A7790_PD_CA7_SCU,
+ PD_CPU_NOCR },
+ { "ca7-cpu2", 0x1c0, 2, R8A7790_PD_CA7_CPU2, R8A7790_PD_CA7_SCU,
+ PD_CPU_NOCR },
+ { "ca7-cpu3", 0x1c0, 3, R8A7790_PD_CA7_CPU3, R8A7790_PD_CA7_SCU,
+ PD_CPU_NOCR },
+ { "sh-4a", 0x80, 0, R8A7790_PD_SH_4A, R8A7790_PD_ALWAYS_ON },
+ { "rgx", 0xc0, 0, R8A7790_PD_RGX, R8A7790_PD_ALWAYS_ON },
+ { "imp", 0x140, 0, R8A7790_PD_IMP, R8A7790_PD_ALWAYS_ON },
+};
+
+const struct rcar_sysc_info r8a7790_sysc_info __initconst = {
+ .areas = r8a7790_areas,
+ .num_areas = ARRAY_SIZE(r8a7790_areas),
+};
diff --git a/drivers/soc/renesas/r8a7791-sysc.c b/drivers/soc/renesas/r8a7791-sysc.c
new file mode 100644
index 000000000..03b9f41a3
--- /dev/null
+++ b/drivers/soc/renesas/r8a7791-sysc.c
@@ -0,0 +1,33 @@
+/*
+ * 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>
+#include <linux/kernel.h>
+
+#include <dt-bindings/power/r8a7791-sysc.h>
+
+#include "rcar-sysc.h"
+
+static const struct rcar_sysc_area r8a7791_areas[] __initconst = {
+ { "always-on", 0, 0, R8A7791_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+ { "ca15-scu", 0x180, 0, R8A7791_PD_CA15_SCU, R8A7791_PD_ALWAYS_ON,
+ PD_SCU },
+ { "ca15-cpu0", 0x40, 0, R8A7791_PD_CA15_CPU0, R8A7791_PD_CA15_SCU,
+ PD_CPU_NOCR },
+ { "ca15-cpu1", 0x40, 1, R8A7791_PD_CA15_CPU1, R8A7791_PD_CA15_SCU,
+ PD_CPU_NOCR },
+ { "sh-4a", 0x80, 0, R8A7791_PD_SH_4A, R8A7791_PD_ALWAYS_ON },
+ { "sgx", 0xc0, 0, R8A7791_PD_SGX, R8A7791_PD_ALWAYS_ON },
+};
+
+const struct rcar_sysc_info r8a7791_sysc_info __initconst = {
+ .areas = r8a7791_areas,
+ .num_areas = ARRAY_SIZE(r8a7791_areas),
+};
diff --git a/drivers/soc/renesas/r8a7792-sysc.c b/drivers/soc/renesas/r8a7792-sysc.c
new file mode 100644
index 000000000..ca7467d7b
--- /dev/null
+++ b/drivers/soc/renesas/r8a7792-sysc.c
@@ -0,0 +1,34 @@
+/*
+ * 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>
+#include <linux/init.h>
+#include <linux/kernel.h>
+
+#include <dt-bindings/power/r8a7792-sysc.h>
+
+#include "rcar-sysc.h"
+
+static const struct rcar_sysc_area r8a7792_areas[] __initconst = {
+ { "always-on", 0, 0, R8A7792_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+ { "ca15-scu", 0x180, 0, R8A7792_PD_CA15_SCU, R8A7792_PD_ALWAYS_ON,
+ PD_SCU },
+ { "ca15-cpu0", 0x40, 0, R8A7792_PD_CA15_CPU0, R8A7792_PD_CA15_SCU,
+ PD_CPU_NOCR },
+ { "ca15-cpu1", 0x40, 1, R8A7792_PD_CA15_CPU1, R8A7792_PD_CA15_SCU,
+ PD_CPU_NOCR },
+ { "sgx", 0xc0, 0, R8A7792_PD_SGX, R8A7792_PD_ALWAYS_ON },
+ { "imp", 0x140, 0, R8A7792_PD_IMP, R8A7792_PD_ALWAYS_ON },
+};
+
+const struct rcar_sysc_info r8a7792_sysc_info __initconst = {
+ .areas = r8a7792_areas,
+ .num_areas = ARRAY_SIZE(r8a7792_areas),
+};
diff --git a/drivers/soc/renesas/r8a7794-sysc.c b/drivers/soc/renesas/r8a7794-sysc.c
new file mode 100644
index 000000000..c4da2941e
--- /dev/null
+++ b/drivers/soc/renesas/r8a7794-sysc.c
@@ -0,0 +1,33 @@
+/*
+ * 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>
+#include <linux/kernel.h>
+
+#include <dt-bindings/power/r8a7794-sysc.h>
+
+#include "rcar-sysc.h"
+
+static const struct rcar_sysc_area r8a7794_areas[] __initconst = {
+ { "always-on", 0, 0, R8A7794_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+ { "ca7-scu", 0x100, 0, R8A7794_PD_CA7_SCU, R8A7794_PD_ALWAYS_ON,
+ PD_SCU },
+ { "ca7-cpu0", 0x1c0, 0, R8A7794_PD_CA7_CPU0, R8A7794_PD_CA7_SCU,
+ PD_CPU_NOCR },
+ { "ca7-cpu1", 0x1c0, 1, R8A7794_PD_CA7_CPU1, R8A7794_PD_CA7_SCU,
+ PD_CPU_NOCR },
+ { "sh-4a", 0x80, 0, R8A7794_PD_SH_4A, R8A7794_PD_ALWAYS_ON },
+ { "sgx", 0xc0, 0, R8A7794_PD_SGX, R8A7794_PD_ALWAYS_ON },
+};
+
+const struct rcar_sysc_info r8a7794_sysc_info __initconst = {
+ .areas = r8a7794_areas,
+ .num_areas = ARRAY_SIZE(r8a7794_areas),
+};
diff --git a/drivers/soc/renesas/r8a7795-sysc.c b/drivers/soc/renesas/r8a7795-sysc.c
new file mode 100644
index 000000000..741266618
--- /dev/null
+++ b/drivers/soc/renesas/r8a7795-sysc.c
@@ -0,0 +1,78 @@
+/*
+ * 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>
+#include <linux/kernel.h>
+#include <linux/sys_soc.h>
+
+#include <dt-bindings/power/r8a7795-sysc.h>
+
+#include "rcar-sysc.h"
+
+static struct rcar_sysc_area r8a7795_areas[] __initdata = {
+ { "always-on", 0, 0, R8A7795_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+ { "ca57-scu", 0x1c0, 0, R8A7795_PD_CA57_SCU, R8A7795_PD_ALWAYS_ON,
+ PD_SCU },
+ { "ca57-cpu0", 0x80, 0, R8A7795_PD_CA57_CPU0, R8A7795_PD_CA57_SCU,
+ PD_CPU_NOCR },
+ { "ca57-cpu1", 0x80, 1, R8A7795_PD_CA57_CPU1, R8A7795_PD_CA57_SCU,
+ PD_CPU_NOCR },
+ { "ca57-cpu2", 0x80, 2, R8A7795_PD_CA57_CPU2, R8A7795_PD_CA57_SCU,
+ PD_CPU_NOCR },
+ { "ca57-cpu3", 0x80, 3, R8A7795_PD_CA57_CPU3, R8A7795_PD_CA57_SCU,
+ PD_CPU_NOCR },
+ { "ca53-scu", 0x140, 0, R8A7795_PD_CA53_SCU, R8A7795_PD_ALWAYS_ON,
+ PD_SCU },
+ { "ca53-cpu0", 0x200, 0, R8A7795_PD_CA53_CPU0, R8A7795_PD_CA53_SCU,
+ PD_CPU_NOCR },
+ { "ca53-cpu1", 0x200, 1, R8A7795_PD_CA53_CPU1, R8A7795_PD_CA53_SCU,
+ PD_CPU_NOCR },
+ { "ca53-cpu2", 0x200, 2, R8A7795_PD_CA53_CPU2, R8A7795_PD_CA53_SCU,
+ PD_CPU_NOCR },
+ { "ca53-cpu3", 0x200, 3, R8A7795_PD_CA53_CPU3, R8A7795_PD_CA53_SCU,
+ PD_CPU_NOCR },
+ { "a3vp", 0x340, 0, R8A7795_PD_A3VP, R8A7795_PD_ALWAYS_ON },
+ { "cr7", 0x240, 0, R8A7795_PD_CR7, R8A7795_PD_ALWAYS_ON },
+ { "a3vc", 0x380, 0, R8A7795_PD_A3VC, R8A7795_PD_ALWAYS_ON },
+ /* A2VC0 exists on ES1.x only */
+ { "a2vc0", 0x3c0, 0, R8A7795_PD_A2VC0, R8A7795_PD_A3VC },
+ { "a2vc1", 0x3c0, 1, R8A7795_PD_A2VC1, R8A7795_PD_A3VC },
+ { "3dg-a", 0x100, 0, R8A7795_PD_3DG_A, R8A7795_PD_ALWAYS_ON },
+ { "3dg-b", 0x100, 1, R8A7795_PD_3DG_B, R8A7795_PD_3DG_A },
+ { "3dg-c", 0x100, 2, R8A7795_PD_3DG_C, R8A7795_PD_3DG_B },
+ { "3dg-d", 0x100, 3, R8A7795_PD_3DG_D, R8A7795_PD_3DG_C },
+ { "3dg-e", 0x100, 4, R8A7795_PD_3DG_E, R8A7795_PD_3DG_D },
+ { "a3ir", 0x180, 0, R8A7795_PD_A3IR, R8A7795_PD_ALWAYS_ON },
+};
+
+
+ /*
+ * Fixups for R-Car H3 revisions after ES1.x
+ */
+
+static const struct soc_device_attribute r8a7795es1[] __initconst = {
+ { .soc_id = "r8a7795", .revision = "ES1.*" },
+ { /* sentinel */ }
+};
+
+static int __init r8a7795_sysc_init(void)
+{
+ if (!soc_device_match(r8a7795es1))
+ rcar_sysc_nullify(r8a7795_areas, ARRAY_SIZE(r8a7795_areas),
+ R8A7795_PD_A2VC0);
+
+ return 0;
+}
+
+const struct rcar_sysc_info r8a7795_sysc_info __initconst = {
+ .init = r8a7795_sysc_init,
+ .areas = r8a7795_areas,
+ .num_areas = ARRAY_SIZE(r8a7795_areas),
+};
diff --git a/drivers/soc/renesas/r8a7796-sysc.c b/drivers/soc/renesas/r8a7796-sysc.c
new file mode 100644
index 000000000..f700c842b
--- /dev/null
+++ b/drivers/soc/renesas/r8a7796-sysc.c
@@ -0,0 +1,48 @@
+/*
+ * 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>
+#include <linux/kernel.h>
+
+#include <dt-bindings/power/r8a7796-sysc.h>
+
+#include "rcar-sysc.h"
+
+static const struct rcar_sysc_area r8a7796_areas[] __initconst = {
+ { "always-on", 0, 0, R8A7796_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+ { "ca57-scu", 0x1c0, 0, R8A7796_PD_CA57_SCU, R8A7796_PD_ALWAYS_ON,
+ PD_SCU },
+ { "ca57-cpu0", 0x80, 0, R8A7796_PD_CA57_CPU0, R8A7796_PD_CA57_SCU,
+ PD_CPU_NOCR },
+ { "ca57-cpu1", 0x80, 1, R8A7796_PD_CA57_CPU1, R8A7796_PD_CA57_SCU,
+ PD_CPU_NOCR },
+ { "ca53-scu", 0x140, 0, R8A7796_PD_CA53_SCU, R8A7796_PD_ALWAYS_ON,
+ PD_SCU },
+ { "ca53-cpu0", 0x200, 0, R8A7796_PD_CA53_CPU0, R8A7796_PD_CA53_SCU,
+ PD_CPU_NOCR },
+ { "ca53-cpu1", 0x200, 1, R8A7796_PD_CA53_CPU1, R8A7796_PD_CA53_SCU,
+ PD_CPU_NOCR },
+ { "ca53-cpu2", 0x200, 2, R8A7796_PD_CA53_CPU2, R8A7796_PD_CA53_SCU,
+ PD_CPU_NOCR },
+ { "ca53-cpu3", 0x200, 3, R8A7796_PD_CA53_CPU3, R8A7796_PD_CA53_SCU,
+ PD_CPU_NOCR },
+ { "cr7", 0x240, 0, R8A7796_PD_CR7, R8A7796_PD_ALWAYS_ON },
+ { "a3vc", 0x380, 0, R8A7796_PD_A3VC, R8A7796_PD_ALWAYS_ON },
+ { "a2vc0", 0x3c0, 0, R8A7796_PD_A2VC0, R8A7796_PD_A3VC },
+ { "a2vc1", 0x3c0, 1, R8A7796_PD_A2VC1, R8A7796_PD_A3VC },
+ { "3dg-a", 0x100, 0, R8A7796_PD_3DG_A, R8A7796_PD_ALWAYS_ON },
+ { "3dg-b", 0x100, 1, R8A7796_PD_3DG_B, R8A7796_PD_3DG_A },
+ { "a3ir", 0x180, 0, R8A7796_PD_A3IR, R8A7796_PD_ALWAYS_ON },
+};
+
+const struct rcar_sysc_info r8a7796_sysc_info __initconst = {
+ .areas = r8a7796_areas,
+ .num_areas = ARRAY_SIZE(r8a7796_areas),
+};
diff --git a/drivers/soc/renesas/r8a77965-sysc.c b/drivers/soc/renesas/r8a77965-sysc.c
new file mode 100644
index 000000000..d7f7928e3
--- /dev/null
+++ b/drivers/soc/renesas/r8a77965-sysc.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Renesas R-Car M3-N System Controller
+ * Copyright (C) 2018 Jacopo Mondi <jacopo+renesas@jmondi.org>
+ *
+ * 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/r8a77965-sysc.h>
+
+#include "rcar-sysc.h"
+
+static const struct rcar_sysc_area r8a77965_areas[] __initconst = {
+ { "always-on", 0, 0, R8A77965_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+ { "ca57-scu", 0x1c0, 0, R8A77965_PD_CA57_SCU, R8A77965_PD_ALWAYS_ON,
+ PD_SCU },
+ { "ca57-cpu0", 0x80, 0, R8A77965_PD_CA57_CPU0, R8A77965_PD_CA57_SCU,
+ PD_CPU_NOCR },
+ { "ca57-cpu1", 0x80, 1, R8A77965_PD_CA57_CPU1, R8A77965_PD_CA57_SCU,
+ PD_CPU_NOCR },
+ { "cr7", 0x240, 0, R8A77965_PD_CR7, R8A77965_PD_ALWAYS_ON },
+ { "a3vc", 0x380, 0, R8A77965_PD_A3VC, R8A77965_PD_ALWAYS_ON },
+ { "a3vp", 0x340, 0, R8A77965_PD_A3VP, R8A77965_PD_ALWAYS_ON },
+ { "a2vc1", 0x3c0, 1, R8A77965_PD_A2VC1, R8A77965_PD_A3VC },
+ { "3dg-a", 0x100, 0, R8A77965_PD_3DG_A, R8A77965_PD_ALWAYS_ON },
+ { "3dg-b", 0x100, 1, R8A77965_PD_3DG_B, R8A77965_PD_3DG_A },
+ { "a3ir", 0x180, 0, R8A77965_PD_A3IR, R8A77965_PD_ALWAYS_ON },
+};
+
+const struct rcar_sysc_info r8a77965_sysc_info __initconst = {
+ .areas = r8a77965_areas,
+ .num_areas = ARRAY_SIZE(r8a77965_areas),
+};
diff --git a/drivers/soc/renesas/r8a77970-sysc.c b/drivers/soc/renesas/r8a77970-sysc.c
new file mode 100644
index 000000000..77422baa7
--- /dev/null
+++ b/drivers/soc/renesas/r8a77970-sysc.c
@@ -0,0 +1,39 @@
+/*
+ * 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>
+#include <linux/kernel.h>
+
+#include <dt-bindings/power/r8a77970-sysc.h>
+
+#include "rcar-sysc.h"
+
+static const struct rcar_sysc_area r8a77970_areas[] __initconst = {
+ { "always-on", 0, 0, R8A77970_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+ { "ca53-scu", 0x140, 0, R8A77970_PD_CA53_SCU, R8A77970_PD_ALWAYS_ON,
+ PD_SCU },
+ { "ca53-cpu0", 0x200, 0, R8A77970_PD_CA53_CPU0, R8A77970_PD_CA53_SCU,
+ PD_CPU_NOCR },
+ { "ca53-cpu1", 0x200, 1, R8A77970_PD_CA53_CPU1, R8A77970_PD_CA53_SCU,
+ PD_CPU_NOCR },
+ { "cr7", 0x240, 0, R8A77970_PD_CR7, R8A77970_PD_ALWAYS_ON },
+ { "a3ir", 0x180, 0, R8A77970_PD_A3IR, R8A77970_PD_ALWAYS_ON },
+ { "a2ir0", 0x400, 0, R8A77970_PD_A2IR0, R8A77970_PD_A3IR },
+ { "a2ir1", 0x400, 1, R8A77970_PD_A2IR1, R8A77970_PD_A3IR },
+ { "a2dp", 0x400, 2, R8A77970_PD_A2DP, R8A77970_PD_A3IR },
+ { "a2cn", 0x400, 3, R8A77970_PD_A2CN, R8A77970_PD_A3IR },
+ { "a2sc0", 0x400, 4, R8A77970_PD_A2SC0, R8A77970_PD_A3IR },
+ { "a2sc1", 0x400, 5, R8A77970_PD_A2SC1, R8A77970_PD_A3IR },
+};
+
+const struct rcar_sysc_info r8a77970_sysc_info __initconst = {
+ .areas = r8a77970_areas,
+ .num_areas = ARRAY_SIZE(r8a77970_areas),
+};
diff --git a/drivers/soc/renesas/r8a77980-sysc.c b/drivers/soc/renesas/r8a77980-sysc.c
new file mode 100644
index 000000000..a8dbe55e8
--- /dev/null
+++ b/drivers/soc/renesas/r8a77980-sysc.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Renesas R-Car V3H System Controller
+ *
+ * Copyright (C) 2018 Renesas Electronics Corp.
+ * Copyright (C) 2018 Cogent Embedded, Inc.
+ */
+
+#include <linux/bug.h>
+#include <linux/kernel.h>
+
+#include <dt-bindings/power/r8a77980-sysc.h>
+
+#include "rcar-sysc.h"
+
+static const struct rcar_sysc_area r8a77980_areas[] __initconst = {
+ { "always-on", 0, 0, R8A77980_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+ { "ca53-scu", 0x140, 0, R8A77980_PD_CA53_SCU, R8A77980_PD_ALWAYS_ON,
+ PD_SCU },
+ { "ca53-cpu0", 0x200, 0, R8A77980_PD_CA53_CPU0, R8A77980_PD_CA53_SCU,
+ PD_CPU_NOCR },
+ { "ca53-cpu1", 0x200, 1, R8A77980_PD_CA53_CPU1, R8A77980_PD_CA53_SCU,
+ PD_CPU_NOCR },
+ { "ca53-cpu2", 0x200, 2, R8A77980_PD_CA53_CPU2, R8A77980_PD_CA53_SCU,
+ PD_CPU_NOCR },
+ { "ca53-cpu3", 0x200, 3, R8A77980_PD_CA53_CPU3, R8A77980_PD_CA53_SCU,
+ PD_CPU_NOCR },
+ { "cr7", 0x240, 0, R8A77980_PD_CR7, R8A77980_PD_ALWAYS_ON },
+ { "a3ir", 0x180, 0, R8A77980_PD_A3IR, R8A77980_PD_ALWAYS_ON },
+ { "a2ir0", 0x400, 0, R8A77980_PD_A2IR0, R8A77980_PD_A3IR },
+ { "a2ir1", 0x400, 1, R8A77980_PD_A2IR1, R8A77980_PD_A3IR },
+ { "a2ir2", 0x400, 2, R8A77980_PD_A2IR2, R8A77980_PD_A3IR },
+ { "a2ir3", 0x400, 3, R8A77980_PD_A2IR3, R8A77980_PD_A3IR },
+ { "a2ir4", 0x400, 4, R8A77980_PD_A2IR4, R8A77980_PD_A3IR },
+ { "a2ir5", 0x400, 5, R8A77980_PD_A2IR5, R8A77980_PD_A3IR },
+ { "a2sc0", 0x400, 6, R8A77980_PD_A2SC0, R8A77980_PD_A3IR },
+ { "a2sc1", 0x400, 7, R8A77980_PD_A2SC1, R8A77980_PD_A3IR },
+ { "a2sc2", 0x400, 8, R8A77980_PD_A2SC2, R8A77980_PD_A3IR },
+ { "a2sc3", 0x400, 9, R8A77980_PD_A2SC3, R8A77980_PD_A3IR },
+ { "a2sc4", 0x400, 10, R8A77980_PD_A2SC4, R8A77980_PD_A3IR },
+ { "a2dp0", 0x400, 11, R8A77980_PD_A2DP0, R8A77980_PD_A3IR },
+ { "a2dp1", 0x400, 12, R8A77980_PD_A2DP1, R8A77980_PD_A3IR },
+ { "a2cn", 0x400, 13, R8A77980_PD_A2CN, R8A77980_PD_A3IR },
+ { "a3vip0", 0x2c0, 0, R8A77980_PD_A3VIP0, R8A77980_PD_ALWAYS_ON },
+ { "a3vip1", 0x300, 0, R8A77980_PD_A3VIP1, R8A77980_PD_ALWAYS_ON },
+ { "a3vip2", 0x280, 0, R8A77980_PD_A3VIP2, R8A77980_PD_ALWAYS_ON },
+};
+
+const struct rcar_sysc_info r8a77980_sysc_info __initconst = {
+ .areas = r8a77980_areas,
+ .num_areas = ARRAY_SIZE(r8a77980_areas),
+};
diff --git a/drivers/soc/renesas/r8a77990-sysc.c b/drivers/soc/renesas/r8a77990-sysc.c
new file mode 100644
index 000000000..664b244eb
--- /dev/null
+++ b/drivers/soc/renesas/r8a77990-sysc.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Renesas R-Car E3 System Controller
+ *
+ * Copyright (C) 2018 Renesas Electronics Corp.
+ */
+
+#include <linux/bug.h>
+#include <linux/kernel.h>
+#include <linux/sys_soc.h>
+
+#include <dt-bindings/power/r8a77990-sysc.h>
+
+#include "rcar-sysc.h"
+
+static struct rcar_sysc_area r8a77990_areas[] __initdata = {
+ { "always-on", 0, 0, R8A77990_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+ { "ca53-scu", 0x140, 0, R8A77990_PD_CA53_SCU, R8A77990_PD_ALWAYS_ON,
+ PD_SCU },
+ { "ca53-cpu0", 0x200, 0, R8A77990_PD_CA53_CPU0, R8A77990_PD_CA53_SCU,
+ PD_CPU_NOCR },
+ { "ca53-cpu1", 0x200, 1, R8A77990_PD_CA53_CPU1, R8A77990_PD_CA53_SCU,
+ PD_CPU_NOCR },
+ { "cr7", 0x240, 0, R8A77990_PD_CR7, R8A77990_PD_ALWAYS_ON },
+ { "a3vc", 0x380, 0, R8A77990_PD_A3VC, R8A77990_PD_ALWAYS_ON },
+ { "a2vc1", 0x3c0, 1, R8A77990_PD_A2VC1, R8A77990_PD_A3VC },
+ { "3dg-a", 0x100, 0, R8A77990_PD_3DG_A, R8A77990_PD_ALWAYS_ON },
+ { "3dg-b", 0x100, 1, R8A77990_PD_3DG_B, R8A77990_PD_3DG_A },
+};
+
+/* Fixups for R-Car E3 ES1.0 revision */
+static const struct soc_device_attribute r8a77990[] __initconst = {
+ { .soc_id = "r8a77990", .revision = "ES1.0" },
+ { /* sentinel */ }
+};
+
+static int __init r8a77990_sysc_init(void)
+{
+ if (soc_device_match(r8a77990)) {
+ /* Fix incorrect 3DG hierarchy */
+ swap(r8a77990_areas[7], r8a77990_areas[8]);
+ r8a77990_areas[7].parent = R8A77990_PD_ALWAYS_ON;
+ r8a77990_areas[8].parent = R8A77990_PD_3DG_B;
+ }
+
+ return 0;
+}
+
+const struct rcar_sysc_info r8a77990_sysc_info __initconst = {
+ .init = r8a77990_sysc_init,
+ .areas = r8a77990_areas,
+ .num_areas = ARRAY_SIZE(r8a77990_areas),
+};
diff --git a/drivers/soc/renesas/r8a77995-sysc.c b/drivers/soc/renesas/r8a77995-sysc.c
new file mode 100644
index 000000000..1b2ef415b
--- /dev/null
+++ b/drivers/soc/renesas/r8a77995-sysc.c
@@ -0,0 +1,30 @@
+/*
+ * 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>
+#include <linux/kernel.h>
+
+#include <dt-bindings/power/r8a77995-sysc.h>
+
+#include "rcar-sysc.h"
+
+static const struct rcar_sysc_area r8a77995_areas[] __initconst = {
+ { "always-on", 0, 0, R8A77995_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+ { "ca53-scu", 0x140, 0, R8A77995_PD_CA53_SCU, R8A77995_PD_ALWAYS_ON,
+ PD_SCU },
+ { "ca53-cpu0", 0x200, 0, R8A77995_PD_CA53_CPU0, R8A77995_PD_CA53_SCU,
+ PD_CPU_NOCR },
+};
+
+
+const struct rcar_sysc_info r8a77995_sysc_info __initconst = {
+ .areas = r8a77995_areas,
+ .num_areas = ARRAY_SIZE(r8a77995_areas),
+};
diff --git a/drivers/soc/renesas/r9a06g032-smp.c b/drivers/soc/renesas/r9a06g032-smp.c
new file mode 100644
index 000000000..a1926e8d7
--- /dev/null
+++ b/drivers/soc/renesas/r9a06g032-smp.c
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * R9A06G032 Second CA7 enabler.
+ *
+ * Copyright (C) 2018 Renesas Electronics Europe Limited
+ *
+ * Michel Pollet <michel.pollet@bp.renesas.com>, <buserror@gmail.com>
+ * Derived from actions,s500-smp
+ */
+
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/smp.h>
+
+/*
+ * The second CPU is parked in ROM at boot time. It requires waking it after
+ * writing an address into the BOOTADDR register of sysctrl.
+ *
+ * So the default value of the "cpu-release-addr" corresponds to BOOTADDR...
+ *
+ * *However* the BOOTADDR register is not available when the kernel
+ * starts in NONSEC mode.
+ *
+ * So for NONSEC mode, the bootloader re-parks the second CPU into a pen
+ * in SRAM, and changes the "cpu-release-addr" of linux's DT to a SRAM address,
+ * which is not restricted.
+ */
+
+static void __iomem *cpu_bootaddr;
+
+static DEFINE_SPINLOCK(cpu_lock);
+
+static int
+r9a06g032_smp_boot_secondary(unsigned int cpu,
+ struct task_struct *idle)
+{
+ if (!cpu_bootaddr)
+ return -ENODEV;
+
+ spin_lock(&cpu_lock);
+
+ writel(__pa_symbol(secondary_startup), cpu_bootaddr);
+ arch_send_wakeup_ipi_mask(cpumask_of(cpu));
+
+ spin_unlock(&cpu_lock);
+
+ return 0;
+}
+
+static void __init r9a06g032_smp_prepare_cpus(unsigned int max_cpus)
+{
+ struct device_node *dn;
+ int ret = -EINVAL, dns;
+ u32 bootaddr;
+
+ dn = of_get_cpu_node(1, NULL);
+ if (!dn) {
+ pr_err("CPU#1: missing device tree node\n");
+ return;
+ }
+ /*
+ * Determine the address from which the CPU is polling.
+ * The bootloader *does* change this property.
+ * Note: The property can be either 64 or 32 bits, so handle both cases
+ */
+ if (of_find_property(dn, "cpu-release-addr", &dns)) {
+ if (dns == sizeof(u64)) {
+ u64 temp;
+
+ ret = of_property_read_u64(dn,
+ "cpu-release-addr", &temp);
+ bootaddr = temp;
+ } else {
+ ret = of_property_read_u32(dn,
+ "cpu-release-addr",
+ &bootaddr);
+ }
+ }
+ of_node_put(dn);
+ if (ret) {
+ pr_err("CPU#1: invalid cpu-release-addr property\n");
+ return;
+ }
+ pr_info("CPU#1: cpu-release-addr %08x\n", bootaddr);
+
+ cpu_bootaddr = ioremap(bootaddr, sizeof(bootaddr));
+}
+
+static const struct smp_operations r9a06g032_smp_ops __initconst = {
+ .smp_prepare_cpus = r9a06g032_smp_prepare_cpus,
+ .smp_boot_secondary = r9a06g032_smp_boot_secondary,
+};
+
+CPU_METHOD_OF_DECLARE(r9a06g032_smp,
+ "renesas,r9a06g032-smp", &r9a06g032_smp_ops);
diff --git a/drivers/soc/renesas/rcar-rst.c b/drivers/soc/renesas/rcar-rst.c
new file mode 100644
index 000000000..d9c1034e7
--- /dev/null
+++ b/drivers/soc/renesas/rcar-rst.c
@@ -0,0 +1,121 @@
+/*
+ * 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>
+#include <linux/io.h>
+#include <linux/of_address.h>
+#include <linux/soc/renesas/rcar-rst.h>
+
+#define WDTRSTCR_RESET 0xA55A0002
+#define WDTRSTCR 0x0054
+
+static int rcar_rst_enable_wdt_reset(void __iomem *base)
+{
+ iowrite32(WDTRSTCR_RESET, base + WDTRSTCR);
+ return 0;
+}
+
+struct rst_config {
+ unsigned int modemr; /* Mode Monitoring Register Offset */
+ int (*configure)(void *base); /* Platform specific configuration */
+};
+
+static const struct rst_config rcar_rst_gen1 __initconst = {
+ .modemr = 0x20,
+};
+
+static const struct rst_config rcar_rst_gen2 __initconst = {
+ .modemr = 0x60,
+ .configure = rcar_rst_enable_wdt_reset,
+};
+
+static const struct rst_config rcar_rst_gen3 __initconst = {
+ .modemr = 0x60,
+};
+
+static const struct of_device_id rcar_rst_matches[] __initconst = {
+ /* RZ/G is handled like R-Car Gen2 */
+ { .compatible = "renesas,r8a7743-rst", .data = &rcar_rst_gen2 },
+ { .compatible = "renesas,r8a7745-rst", .data = &rcar_rst_gen2 },
+ { .compatible = "renesas,r8a77470-rst", .data = &rcar_rst_gen2 },
+ /* R-Car Gen1 */
+ { .compatible = "renesas,r8a7778-reset-wdt", .data = &rcar_rst_gen1 },
+ { .compatible = "renesas,r8a7779-reset-wdt", .data = &rcar_rst_gen1 },
+ /* R-Car Gen2 */
+ { .compatible = "renesas,r8a7790-rst", .data = &rcar_rst_gen2 },
+ { .compatible = "renesas,r8a7791-rst", .data = &rcar_rst_gen2 },
+ { .compatible = "renesas,r8a7792-rst", .data = &rcar_rst_gen2 },
+ { .compatible = "renesas,r8a7793-rst", .data = &rcar_rst_gen2 },
+ { .compatible = "renesas,r8a7794-rst", .data = &rcar_rst_gen2 },
+ /* R-Car Gen3 */
+ { .compatible = "renesas,r8a7795-rst", .data = &rcar_rst_gen3 },
+ { .compatible = "renesas,r8a7796-rst", .data = &rcar_rst_gen3 },
+ { .compatible = "renesas,r8a77965-rst", .data = &rcar_rst_gen3 },
+ { .compatible = "renesas,r8a77970-rst", .data = &rcar_rst_gen3 },
+ { .compatible = "renesas,r8a77980-rst", .data = &rcar_rst_gen3 },
+ { .compatible = "renesas,r8a77990-rst", .data = &rcar_rst_gen3 },
+ { .compatible = "renesas,r8a77995-rst", .data = &rcar_rst_gen3 },
+ { /* sentinel */ }
+};
+
+static void __iomem *rcar_rst_base __initdata;
+static u32 saved_mode __initdata;
+
+static int __init rcar_rst_init(void)
+{
+ const struct of_device_id *match;
+ const struct rst_config *cfg;
+ struct device_node *np;
+ void __iomem *base;
+ int error = 0;
+
+ np = of_find_matching_node_and_match(NULL, rcar_rst_matches, &match);
+ if (!np)
+ return -ENODEV;
+
+ base = of_iomap(np, 0);
+ if (!base) {
+ pr_warn("%pOF: Cannot map regs\n", np);
+ error = -ENOMEM;
+ goto out_put;
+ }
+
+ rcar_rst_base = base;
+ cfg = match->data;
+ saved_mode = ioread32(base + cfg->modemr);
+ if (cfg->configure) {
+ error = cfg->configure(base);
+ if (error) {
+ pr_warn("%pOF: Cannot run SoC specific configuration\n",
+ np);
+ goto out_put;
+ }
+ }
+
+ pr_debug("%pOF: MODE = 0x%08x\n", np, saved_mode);
+
+out_put:
+ of_node_put(np);
+ return error;
+}
+
+int __init rcar_rst_read_mode_pins(u32 *mode)
+{
+ int error;
+
+ if (!rcar_rst_base) {
+ error = rcar_rst_init();
+ if (error)
+ return error;
+ }
+
+ *mode = saved_mode;
+ return 0;
+}
diff --git a/drivers/soc/renesas/rcar-sysc.c b/drivers/soc/renesas/rcar-sysc.c
new file mode 100644
index 000000000..029188e8b
--- /dev/null
+++ b/drivers/soc/renesas/rcar-sysc.c
@@ -0,0 +1,492 @@
+/*
+ * 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>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/mm.h>
+#include <linux/of_address.h>
+#include <linux/pm_domain.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/soc/renesas/rcar-sysc.h>
+
+#include "rcar-sysc.h"
+
+/* SYSC Common */
+#define SYSCSR 0x00 /* SYSC Status Register */
+#define SYSCISR 0x04 /* Interrupt Status Register */
+#define SYSCISCR 0x08 /* Interrupt Status Clear Register */
+#define SYSCIER 0x0c /* Interrupt Enable Register */
+#define SYSCIMR 0x10 /* Interrupt Mask Register */
+
+/* SYSC Status Register */
+#define SYSCSR_PONENB 1 /* Ready for power resume requests */
+#define SYSCSR_POFFENB 0 /* Ready for power shutoff requests */
+
+/*
+ * Power Control Register Offsets inside the register block for each domain
+ * Note: The "CR" registers for ARM cores exist on H1 only
+ * Use WFI to power off, CPG/APMU to resume ARM cores on R-Car Gen2
+ * Use PSCI on R-Car Gen3
+ */
+#define PWRSR_OFFS 0x00 /* Power Status Register */
+#define PWROFFCR_OFFS 0x04 /* Power Shutoff Control Register */
+#define PWROFFSR_OFFS 0x08 /* Power Shutoff Status Register */
+#define PWRONCR_OFFS 0x0c /* Power Resume Control Register */
+#define PWRONSR_OFFS 0x10 /* Power Resume Status Register */
+#define PWRER_OFFS 0x14 /* Power Shutoff/Resume Error */
+
+
+#define SYSCSR_RETRIES 100
+#define SYSCSR_DELAY_US 1
+
+#define PWRER_RETRIES 100
+#define PWRER_DELAY_US 1
+
+#define SYSCISR_RETRIES 1000
+#define SYSCISR_DELAY_US 1
+
+#define RCAR_PD_ALWAYS_ON 32 /* Always-on power area */
+
+struct rcar_sysc_ch {
+ u16 chan_offs;
+ u8 chan_bit;
+ u8 isr_bit;
+};
+
+static void __iomem *rcar_sysc_base;
+static DEFINE_SPINLOCK(rcar_sysc_lock); /* SMP CPUs + I/O devices */
+
+static int rcar_sysc_pwr_on_off(const struct rcar_sysc_ch *sysc_ch, bool on)
+{
+ unsigned int sr_bit, reg_offs;
+ int k;
+
+ if (on) {
+ sr_bit = SYSCSR_PONENB;
+ reg_offs = PWRONCR_OFFS;
+ } else {
+ sr_bit = SYSCSR_POFFENB;
+ reg_offs = PWROFFCR_OFFS;
+ }
+
+ /* Wait until SYSC is ready to accept a power request */
+ for (k = 0; k < SYSCSR_RETRIES; k++) {
+ if (ioread32(rcar_sysc_base + SYSCSR) & BIT(sr_bit))
+ break;
+ udelay(SYSCSR_DELAY_US);
+ }
+
+ if (k == SYSCSR_RETRIES)
+ return -EAGAIN;
+
+ /* Submit power shutoff or power resume request */
+ iowrite32(BIT(sysc_ch->chan_bit),
+ rcar_sysc_base + sysc_ch->chan_offs + reg_offs);
+
+ return 0;
+}
+
+static int rcar_sysc_power(const struct rcar_sysc_ch *sysc_ch, bool on)
+{
+ unsigned int isr_mask = BIT(sysc_ch->isr_bit);
+ unsigned int chan_mask = BIT(sysc_ch->chan_bit);
+ unsigned int status;
+ unsigned long flags;
+ int ret = 0;
+ int k;
+
+ spin_lock_irqsave(&rcar_sysc_lock, flags);
+
+ iowrite32(isr_mask, rcar_sysc_base + SYSCISCR);
+
+ /* Submit power shutoff or resume request until it was accepted */
+ for (k = 0; k < PWRER_RETRIES; k++) {
+ ret = rcar_sysc_pwr_on_off(sysc_ch, on);
+ if (ret)
+ goto out;
+
+ status = ioread32(rcar_sysc_base +
+ sysc_ch->chan_offs + PWRER_OFFS);
+ if (!(status & chan_mask))
+ break;
+
+ udelay(PWRER_DELAY_US);
+ }
+
+ if (k == PWRER_RETRIES) {
+ ret = -EIO;
+ goto out;
+ }
+
+ /* Wait until the power shutoff or resume request has completed * */
+ for (k = 0; k < SYSCISR_RETRIES; k++) {
+ if (ioread32(rcar_sysc_base + SYSCISR) & isr_mask)
+ break;
+ udelay(SYSCISR_DELAY_US);
+ }
+
+ if (k == SYSCISR_RETRIES)
+ ret = -EIO;
+
+ iowrite32(isr_mask, rcar_sysc_base + SYSCISCR);
+
+ out:
+ spin_unlock_irqrestore(&rcar_sysc_lock, flags);
+
+ pr_debug("sysc power %s domain %d: %08x -> %d\n", on ? "on" : "off",
+ sysc_ch->isr_bit, ioread32(rcar_sysc_base + SYSCISR), ret);
+ return ret;
+}
+
+static int rcar_sysc_power_down(const struct rcar_sysc_ch *sysc_ch)
+{
+ return rcar_sysc_power(sysc_ch, false);
+}
+
+static int rcar_sysc_power_up(const struct rcar_sysc_ch *sysc_ch)
+{
+ return rcar_sysc_power(sysc_ch, true);
+}
+
+static bool rcar_sysc_power_is_off(const struct rcar_sysc_ch *sysc_ch)
+{
+ unsigned int st;
+
+ st = ioread32(rcar_sysc_base + sysc_ch->chan_offs + PWRSR_OFFS);
+ if (st & BIT(sysc_ch->chan_bit))
+ return true;
+
+ return false;
+}
+
+struct rcar_sysc_pd {
+ struct generic_pm_domain genpd;
+ struct rcar_sysc_ch ch;
+ unsigned int flags;
+ char name[0];
+};
+
+static inline struct rcar_sysc_pd *to_rcar_pd(struct generic_pm_domain *d)
+{
+ return container_of(d, struct rcar_sysc_pd, genpd);
+}
+
+static int rcar_sysc_pd_power_off(struct generic_pm_domain *genpd)
+{
+ struct rcar_sysc_pd *pd = to_rcar_pd(genpd);
+
+ pr_debug("%s: %s\n", __func__, genpd->name);
+ return rcar_sysc_power_down(&pd->ch);
+}
+
+static int rcar_sysc_pd_power_on(struct generic_pm_domain *genpd)
+{
+ struct rcar_sysc_pd *pd = to_rcar_pd(genpd);
+
+ pr_debug("%s: %s\n", __func__, genpd->name);
+ return rcar_sysc_power_up(&pd->ch);
+}
+
+static bool has_cpg_mstp;
+
+static int __init rcar_sysc_pd_setup(struct rcar_sysc_pd *pd)
+{
+ struct generic_pm_domain *genpd = &pd->genpd;
+ const char *name = pd->genpd.name;
+ struct dev_power_governor *gov = &simple_qos_governor;
+ int error;
+
+ if (pd->flags & PD_CPU) {
+ /*
+ * This domain contains a CPU core and therefore it should
+ * only be turned off if the CPU is not in use.
+ */
+ pr_debug("PM domain %s contains %s\n", name, "CPU");
+ genpd->flags |= GENPD_FLAG_ALWAYS_ON;
+ } else if (pd->flags & PD_SCU) {
+ /*
+ * This domain contains an SCU and cache-controller, and
+ * therefore it should only be turned off if the CPU cores are
+ * not in use.
+ */
+ pr_debug("PM domain %s contains %s\n", name, "SCU");
+ genpd->flags |= GENPD_FLAG_ALWAYS_ON;
+ } else if (pd->flags & PD_NO_CR) {
+ /*
+ * This domain cannot be turned off.
+ */
+ genpd->flags |= GENPD_FLAG_ALWAYS_ON;
+ }
+
+ if (!(pd->flags & (PD_CPU | PD_SCU))) {
+ /* Enable Clock Domain for I/O devices */
+ genpd->flags |= GENPD_FLAG_PM_CLK | GENPD_FLAG_ACTIVE_WAKEUP;
+ if (has_cpg_mstp) {
+ genpd->attach_dev = cpg_mstp_attach_dev;
+ genpd->detach_dev = cpg_mstp_detach_dev;
+ } else {
+ genpd->attach_dev = cpg_mssr_attach_dev;
+ genpd->detach_dev = cpg_mssr_detach_dev;
+ }
+ }
+
+ genpd->power_off = rcar_sysc_pd_power_off;
+ genpd->power_on = rcar_sysc_pd_power_on;
+
+ if (pd->flags & (PD_CPU | PD_NO_CR)) {
+ /* Skip CPUs (handled by SMP code) and areas without control */
+ pr_debug("%s: Not touching %s\n", __func__, genpd->name);
+ goto finalize;
+ }
+
+ if (!rcar_sysc_power_is_off(&pd->ch)) {
+ pr_debug("%s: %s is already powered\n", __func__, genpd->name);
+ goto finalize;
+ }
+
+ rcar_sysc_power_up(&pd->ch);
+
+finalize:
+ error = pm_genpd_init(genpd, gov, false);
+ if (error)
+ pr_err("Failed to init PM domain %s: %d\n", name, error);
+
+ return error;
+}
+
+static const struct of_device_id rcar_sysc_matches[] __initconst = {
+#ifdef CONFIG_SYSC_R8A7743
+ { .compatible = "renesas,r8a7743-sysc", .data = &r8a7743_sysc_info },
+#endif
+#ifdef CONFIG_SYSC_R8A7745
+ { .compatible = "renesas,r8a7745-sysc", .data = &r8a7745_sysc_info },
+#endif
+#ifdef CONFIG_SYSC_R8A77470
+ { .compatible = "renesas,r8a77470-sysc", .data = &r8a77470_sysc_info },
+#endif
+#ifdef CONFIG_SYSC_R8A7779
+ { .compatible = "renesas,r8a7779-sysc", .data = &r8a7779_sysc_info },
+#endif
+#ifdef CONFIG_SYSC_R8A7790
+ { .compatible = "renesas,r8a7790-sysc", .data = &r8a7790_sysc_info },
+#endif
+#ifdef CONFIG_SYSC_R8A7791
+ { .compatible = "renesas,r8a7791-sysc", .data = &r8a7791_sysc_info },
+ /* R-Car M2-N is identical to R-Car M2-W w.r.t. power domains. */
+ { .compatible = "renesas,r8a7793-sysc", .data = &r8a7791_sysc_info },
+#endif
+#ifdef CONFIG_SYSC_R8A7792
+ { .compatible = "renesas,r8a7792-sysc", .data = &r8a7792_sysc_info },
+#endif
+#ifdef CONFIG_SYSC_R8A7794
+ { .compatible = "renesas,r8a7794-sysc", .data = &r8a7794_sysc_info },
+#endif
+#ifdef CONFIG_SYSC_R8A7795
+ { .compatible = "renesas,r8a7795-sysc", .data = &r8a7795_sysc_info },
+#endif
+#ifdef CONFIG_SYSC_R8A7796
+ { .compatible = "renesas,r8a7796-sysc", .data = &r8a7796_sysc_info },
+#endif
+#ifdef CONFIG_SYSC_R8A77965
+ { .compatible = "renesas,r8a77965-sysc", .data = &r8a77965_sysc_info },
+#endif
+#ifdef CONFIG_SYSC_R8A77970
+ { .compatible = "renesas,r8a77970-sysc", .data = &r8a77970_sysc_info },
+#endif
+#ifdef CONFIG_SYSC_R8A77980
+ { .compatible = "renesas,r8a77980-sysc", .data = &r8a77980_sysc_info },
+#endif
+#ifdef CONFIG_SYSC_R8A77990
+ { .compatible = "renesas,r8a77990-sysc", .data = &r8a77990_sysc_info },
+#endif
+#ifdef CONFIG_SYSC_R8A77995
+ { .compatible = "renesas,r8a77995-sysc", .data = &r8a77995_sysc_info },
+#endif
+ { /* sentinel */ }
+};
+
+struct rcar_pm_domains {
+ struct genpd_onecell_data onecell_data;
+ struct generic_pm_domain *domains[RCAR_PD_ALWAYS_ON + 1];
+};
+
+static struct genpd_onecell_data *rcar_sysc_onecell_data;
+
+static int __init rcar_sysc_pd_init(void)
+{
+ const struct rcar_sysc_info *info;
+ const struct of_device_id *match;
+ struct rcar_pm_domains *domains;
+ struct device_node *np;
+ u32 syscier, syscimr;
+ void __iomem *base;
+ unsigned int i;
+ int error;
+
+ np = of_find_matching_node_and_match(NULL, rcar_sysc_matches, &match);
+ if (!np)
+ return -ENODEV;
+
+ info = match->data;
+
+ if (info->init) {
+ error = info->init();
+ if (error)
+ return error;
+ }
+
+ has_cpg_mstp = of_find_compatible_node(NULL, NULL,
+ "renesas,cpg-mstp-clocks");
+
+ base = of_iomap(np, 0);
+ if (!base) {
+ pr_warn("%pOF: Cannot map regs\n", np);
+ error = -ENOMEM;
+ goto out_put;
+ }
+
+ rcar_sysc_base = base;
+
+ domains = kzalloc(sizeof(*domains), GFP_KERNEL);
+ if (!domains) {
+ error = -ENOMEM;
+ goto out_put;
+ }
+
+ domains->onecell_data.domains = domains->domains;
+ domains->onecell_data.num_domains = ARRAY_SIZE(domains->domains);
+ rcar_sysc_onecell_data = &domains->onecell_data;
+
+ for (i = 0, syscier = 0; i < info->num_areas; i++)
+ syscier |= BIT(info->areas[i].isr_bit);
+
+ /*
+ * Mask all interrupt sources to prevent the CPU from receiving them.
+ * Make sure not to clear reserved bits that were set before.
+ */
+ syscimr = ioread32(base + SYSCIMR);
+ syscimr |= syscier;
+ pr_debug("%pOF: syscimr = 0x%08x\n", np, syscimr);
+ iowrite32(syscimr, base + SYSCIMR);
+
+ /*
+ * SYSC needs all interrupt sources enabled to control power.
+ */
+ pr_debug("%pOF: syscier = 0x%08x\n", np, syscier);
+ iowrite32(syscier, base + SYSCIER);
+
+ /*
+ * First, create all PM domains
+ */
+ for (i = 0; i < info->num_areas; i++) {
+ const struct rcar_sysc_area *area = &info->areas[i];
+ struct rcar_sysc_pd *pd;
+
+ if (!area->name) {
+ /* Skip NULLified area */
+ continue;
+ }
+
+ pd = kzalloc(sizeof(*pd) + strlen(area->name) + 1, GFP_KERNEL);
+ if (!pd) {
+ error = -ENOMEM;
+ goto out_put;
+ }
+
+ strcpy(pd->name, area->name);
+ pd->genpd.name = pd->name;
+ pd->ch.chan_offs = area->chan_offs;
+ pd->ch.chan_bit = area->chan_bit;
+ pd->ch.isr_bit = area->isr_bit;
+ pd->flags = area->flags;
+
+ error = rcar_sysc_pd_setup(pd);
+ if (error)
+ goto out_put;
+
+ domains->domains[area->isr_bit] = &pd->genpd;
+ }
+
+ /*
+ * Second, link all PM domains to their parents
+ */
+ for (i = 0; i < info->num_areas; i++) {
+ const struct rcar_sysc_area *area = &info->areas[i];
+
+ if (!area->name || area->parent < 0)
+ continue;
+
+ error = pm_genpd_add_subdomain(domains->domains[area->parent],
+ domains->domains[area->isr_bit]);
+ if (error)
+ pr_warn("Failed to add PM subdomain %s to parent %u\n",
+ area->name, area->parent);
+ }
+
+ error = of_genpd_add_provider_onecell(np, &domains->onecell_data);
+
+out_put:
+ of_node_put(np);
+ return error;
+}
+early_initcall(rcar_sysc_pd_init);
+
+void __init rcar_sysc_nullify(struct rcar_sysc_area *areas,
+ unsigned int num_areas, u8 id)
+{
+ unsigned int i;
+
+ for (i = 0; i < num_areas; i++)
+ if (areas[i].isr_bit == id) {
+ areas[i].name = NULL;
+ return;
+ }
+}
+
+#ifdef CONFIG_ARCH_R8A7779
+static int rcar_sysc_power_cpu(unsigned int idx, bool on)
+{
+ struct generic_pm_domain *genpd;
+ struct rcar_sysc_pd *pd;
+ unsigned int i;
+
+ if (!rcar_sysc_onecell_data)
+ return -ENODEV;
+
+ for (i = 0; i < rcar_sysc_onecell_data->num_domains; i++) {
+ genpd = rcar_sysc_onecell_data->domains[i];
+ if (!genpd)
+ continue;
+
+ pd = to_rcar_pd(genpd);
+ if (!(pd->flags & PD_CPU) || pd->ch.chan_bit != idx)
+ continue;
+
+ return on ? rcar_sysc_power_up(&pd->ch)
+ : rcar_sysc_power_down(&pd->ch);
+ }
+
+ return -ENOENT;
+}
+
+int rcar_sysc_power_down_cpu(unsigned int cpu)
+{
+ return rcar_sysc_power_cpu(cpu, false);
+}
+
+int rcar_sysc_power_up_cpu(unsigned int cpu)
+{
+ return rcar_sysc_power_cpu(cpu, true);
+}
+#endif /* CONFIG_ARCH_R8A7779 */
diff --git a/drivers/soc/renesas/rcar-sysc.h b/drivers/soc/renesas/rcar-sysc.h
new file mode 100644
index 000000000..a22e7cf25
--- /dev/null
+++ b/drivers/soc/renesas/rcar-sysc.h
@@ -0,0 +1,76 @@
+/*
+ * 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__
+
+#include <linux/types.h>
+
+
+/*
+ * Power Domain flags
+ */
+#define PD_CPU BIT(0) /* Area contains main CPU core */
+#define PD_SCU BIT(1) /* Area contains SCU and L2 cache */
+#define PD_NO_CR BIT(2) /* Area lacks PWR{ON,OFF}CR registers */
+
+#define PD_CPU_CR PD_CPU /* CPU area has CR (R-Car H1) */
+#define PD_CPU_NOCR PD_CPU | PD_NO_CR /* CPU area lacks CR (R-Car Gen2/3) */
+#define PD_ALWAYS_ON PD_NO_CR /* Always-on area */
+
+
+/*
+ * Description of a Power Area
+ */
+
+struct rcar_sysc_area {
+ const char *name;
+ u16 chan_offs; /* Offset of PWRSR register for this area */
+ u8 chan_bit; /* Bit in PWR* (except for PWRUP in PWRSR) */
+ u8 isr_bit; /* Bit in SYSCI*R */
+ int parent; /* -1 if none */
+ unsigned int flags; /* See PD_* */
+};
+
+
+/*
+ * SoC-specific Power Area Description
+ */
+
+struct rcar_sysc_info {
+ int (*init)(void); /* Optional */
+ const struct rcar_sysc_area *areas;
+ unsigned int num_areas;
+};
+
+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 r8a7779_sysc_info;
+extern const struct rcar_sysc_info r8a7790_sysc_info;
+extern const struct rcar_sysc_info r8a7791_sysc_info;
+extern const struct rcar_sysc_info r8a7792_sysc_info;
+extern const struct rcar_sysc_info r8a7794_sysc_info;
+extern const struct rcar_sysc_info r8a7795_sysc_info;
+extern const struct rcar_sysc_info r8a7796_sysc_info;
+extern const struct rcar_sysc_info r8a77965_sysc_info;
+extern const struct rcar_sysc_info r8a77970_sysc_info;
+extern const struct rcar_sysc_info r8a77980_sysc_info;
+extern const struct rcar_sysc_info r8a77990_sysc_info;
+extern const struct rcar_sysc_info r8a77995_sysc_info;
+
+
+ /*
+ * Helpers for fixing up power area tables depending on SoC revision
+ */
+
+extern void rcar_sysc_nullify(struct rcar_sysc_area *areas,
+ unsigned int num_areas, u8 id);
+
+#endif /* __SOC_RENESAS_RCAR_SYSC_H__ */
diff --git a/drivers/soc/renesas/renesas-soc.c b/drivers/soc/renesas/renesas-soc.c
new file mode 100644
index 000000000..2a43d6e99
--- /dev/null
+++ b/drivers/soc/renesas/renesas-soc.c
@@ -0,0 +1,327 @@
+/*
+ * 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>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/sys_soc.h>
+
+
+struct renesas_family {
+ const char name[16];
+ u32 reg; /* CCCR or PRR, if not in DT */
+};
+
+static const struct renesas_family fam_rcar_gen1 __initconst __maybe_unused = {
+ .name = "R-Car Gen1",
+ .reg = 0xff000044, /* PRR (Product Register) */
+};
+
+static const struct renesas_family fam_rcar_gen2 __initconst __maybe_unused = {
+ .name = "R-Car Gen2",
+ .reg = 0xff000044, /* PRR (Product Register) */
+};
+
+static const struct renesas_family fam_rcar_gen3 __initconst __maybe_unused = {
+ .name = "R-Car Gen3",
+ .reg = 0xfff00044, /* PRR (Product Register) */
+};
+
+static const struct renesas_family fam_rmobile __initconst __maybe_unused = {
+ .name = "R-Mobile",
+ .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_rzg __initconst __maybe_unused = {
+ .name = "RZ/G",
+ .reg = 0xff000044, /* PRR (Product Register) */
+};
+
+static const struct renesas_family fam_shmobile __initconst __maybe_unused = {
+ .name = "SH-Mobile",
+ .reg = 0xe600101c, /* CCCR (Common Chip Code Register) */
+};
+
+
+struct renesas_soc {
+ const struct renesas_family *family;
+ u8 id;
+};
+
+static const struct renesas_soc soc_rz_a1h __initconst __maybe_unused = {
+ .family = &fam_rza,
+};
+
+static const struct renesas_soc soc_rmobile_ape6 __initconst __maybe_unused = {
+ .family = &fam_rmobile,
+ .id = 0x3f,
+};
+
+static const struct renesas_soc soc_rmobile_a1 __initconst __maybe_unused = {
+ .family = &fam_rmobile,
+ .id = 0x40,
+};
+
+static const struct renesas_soc soc_rz_g1h __initconst __maybe_unused = {
+ .family = &fam_rzg,
+ .id = 0x45,
+};
+
+static const struct renesas_soc soc_rz_g1m __initconst __maybe_unused = {
+ .family = &fam_rzg,
+ .id = 0x47,
+};
+
+static const struct renesas_soc soc_rz_g1n __initconst __maybe_unused = {
+ .family = &fam_rzg,
+ .id = 0x4b,
+};
+
+static const struct renesas_soc soc_rz_g1e __initconst __maybe_unused = {
+ .family = &fam_rzg,
+ .id = 0x4c,
+};
+
+static const struct renesas_soc soc_rz_g1c __initconst __maybe_unused = {
+ .family = &fam_rzg,
+ .id = 0x53,
+};
+
+static const struct renesas_soc soc_rcar_m1a __initconst __maybe_unused = {
+ .family = &fam_rcar_gen1,
+};
+
+static const struct renesas_soc soc_rcar_h1 __initconst __maybe_unused = {
+ .family = &fam_rcar_gen1,
+ .id = 0x3b,
+};
+
+static const struct renesas_soc soc_rcar_h2 __initconst __maybe_unused = {
+ .family = &fam_rcar_gen2,
+ .id = 0x45,
+};
+
+static const struct renesas_soc soc_rcar_m2_w __initconst __maybe_unused = {
+ .family = &fam_rcar_gen2,
+ .id = 0x47,
+};
+
+static const struct renesas_soc soc_rcar_v2h __initconst __maybe_unused = {
+ .family = &fam_rcar_gen2,
+ .id = 0x4a,
+};
+
+static const struct renesas_soc soc_rcar_m2_n __initconst __maybe_unused = {
+ .family = &fam_rcar_gen2,
+ .id = 0x4b,
+};
+
+static const struct renesas_soc soc_rcar_e2 __initconst __maybe_unused = {
+ .family = &fam_rcar_gen2,
+ .id = 0x4c,
+};
+
+static const struct renesas_soc soc_rcar_h3 __initconst __maybe_unused = {
+ .family = &fam_rcar_gen3,
+ .id = 0x4f,
+};
+
+static const struct renesas_soc soc_rcar_m3_w __initconst __maybe_unused = {
+ .family = &fam_rcar_gen3,
+ .id = 0x52,
+};
+
+static const struct renesas_soc soc_rcar_m3_n __initconst __maybe_unused = {
+ .family = &fam_rcar_gen3,
+ .id = 0x55,
+};
+
+static const struct renesas_soc soc_rcar_v3m __initconst __maybe_unused = {
+ .family = &fam_rcar_gen3,
+ .id = 0x54,
+};
+
+static const struct renesas_soc soc_rcar_v3h __initconst __maybe_unused = {
+ .family = &fam_rcar_gen3,
+ .id = 0x56,
+};
+
+static const struct renesas_soc soc_rcar_e3 __initconst __maybe_unused = {
+ .family = &fam_rcar_gen3,
+ .id = 0x57,
+};
+
+static const struct renesas_soc soc_rcar_d3 __initconst __maybe_unused = {
+ .family = &fam_rcar_gen3,
+ .id = 0x58,
+};
+
+static const struct renesas_soc soc_shmobile_ag5 __initconst __maybe_unused = {
+ .family = &fam_shmobile,
+ .id = 0x37,
+};
+
+
+static const struct of_device_id renesas_socs[] __initconst = {
+#ifdef CONFIG_ARCH_R7S72100
+ { .compatible = "renesas,r7s72100", .data = &soc_rz_a1h },
+#endif
+#ifdef CONFIG_ARCH_R8A73A4
+ { .compatible = "renesas,r8a73a4", .data = &soc_rmobile_ape6 },
+#endif
+#ifdef CONFIG_ARCH_R8A7740
+ { .compatible = "renesas,r8a7740", .data = &soc_rmobile_a1 },
+#endif
+#ifdef CONFIG_ARCH_R8A7742
+ { .compatible = "renesas,r8a7742", .data = &soc_rz_g1h },
+#endif
+#ifdef CONFIG_ARCH_R8A7743
+ { .compatible = "renesas,r8a7743", .data = &soc_rz_g1m },
+#endif
+#ifdef CONFIG_ARCH_R8A7744
+ { .compatible = "renesas,r8a7744", .data = &soc_rz_g1n },
+#endif
+#ifdef CONFIG_ARCH_R8A7745
+ { .compatible = "renesas,r8a7745", .data = &soc_rz_g1e },
+#endif
+#ifdef CONFIG_ARCH_R8A77470
+ { .compatible = "renesas,r8a77470", .data = &soc_rz_g1c },
+#endif
+#ifdef CONFIG_ARCH_R8A7778
+ { .compatible = "renesas,r8a7778", .data = &soc_rcar_m1a },
+#endif
+#ifdef CONFIG_ARCH_R8A7779
+ { .compatible = "renesas,r8a7779", .data = &soc_rcar_h1 },
+#endif
+#ifdef CONFIG_ARCH_R8A7790
+ { .compatible = "renesas,r8a7790", .data = &soc_rcar_h2 },
+#endif
+#ifdef CONFIG_ARCH_R8A7791
+ { .compatible = "renesas,r8a7791", .data = &soc_rcar_m2_w },
+#endif
+#ifdef CONFIG_ARCH_R8A7792
+ { .compatible = "renesas,r8a7792", .data = &soc_rcar_v2h },
+#endif
+#ifdef CONFIG_ARCH_R8A7793
+ { .compatible = "renesas,r8a7793", .data = &soc_rcar_m2_n },
+#endif
+#ifdef CONFIG_ARCH_R8A7794
+ { .compatible = "renesas,r8a7794", .data = &soc_rcar_e2 },
+#endif
+#ifdef CONFIG_ARCH_R8A7795
+ { .compatible = "renesas,r8a7795", .data = &soc_rcar_h3 },
+#endif
+#ifdef CONFIG_ARCH_R8A7796
+ { .compatible = "renesas,r8a7796", .data = &soc_rcar_m3_w },
+#endif
+#ifdef CONFIG_ARCH_R8A77965
+ { .compatible = "renesas,r8a77965", .data = &soc_rcar_m3_n },
+#endif
+#ifdef CONFIG_ARCH_R8A77970
+ { .compatible = "renesas,r8a77970", .data = &soc_rcar_v3m },
+#endif
+#ifdef CONFIG_ARCH_R8A77980
+ { .compatible = "renesas,r8a77980", .data = &soc_rcar_v3h },
+#endif
+#ifdef CONFIG_ARCH_R8A77990
+ { .compatible = "renesas,r8a77990", .data = &soc_rcar_e3 },
+#endif
+#ifdef CONFIG_ARCH_R8A77995
+ { .compatible = "renesas,r8a77995", .data = &soc_rcar_d3 },
+#endif
+#ifdef CONFIG_ARCH_SH73A0
+ { .compatible = "renesas,sh73a0", .data = &soc_shmobile_ag5 },
+#endif
+ { /* sentinel */ }
+};
+
+static int __init renesas_soc_init(void)
+{
+ struct soc_device_attribute *soc_dev_attr;
+ const struct renesas_family *family;
+ const struct of_device_id *match;
+ const struct renesas_soc *soc;
+ void __iomem *chipid = NULL;
+ struct soc_device *soc_dev;
+ struct device_node *np;
+ unsigned int product;
+
+ match = of_match_node(renesas_socs, of_root);
+ if (!match)
+ return -ENODEV;
+
+ soc = match->data;
+ family = soc->family;
+
+ /* Try PRR first, then hardcoded fallback */
+ np = of_find_compatible_node(NULL, NULL, "renesas,prr");
+ if (np) {
+ chipid = of_iomap(np, 0);
+ of_node_put(np);
+ } else if (soc->id) {
+ chipid = ioremap(family->reg, 4);
+ }
+ if (chipid) {
+ product = readl(chipid);
+ iounmap(chipid);
+ /* R-Car M3-W ES1.1 incorrectly identifies as ES2.0 */
+ if ((product & 0x7fff) == 0x5210)
+ product ^= 0x11;
+ /* R-Car M3-W ES1.3 incorrectly identifies as ES2.1 */
+ if ((product & 0x7fff) == 0x5211)
+ product ^= 0x12;
+ if (soc->id && ((product >> 8) & 0xff) != soc->id) {
+ pr_warn("SoC mismatch (product = 0x%x)\n", product);
+ return -ENODEV;
+ }
+ }
+
+ soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
+ if (!soc_dev_attr)
+ return -ENOMEM;
+
+ np = of_find_node_by_path("/");
+ of_property_read_string(np, "model", &soc_dev_attr->machine);
+ of_node_put(np);
+
+ 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);
+
+ pr_info("Detected Renesas %s %s %s\n", soc_dev_attr->family,
+ soc_dev_attr->soc_id, soc_dev_attr->revision ?: "");
+
+ soc_dev = soc_device_register(soc_dev_attr);
+ if (IS_ERR(soc_dev)) {
+ kfree(soc_dev_attr->revision);
+ kfree_const(soc_dev_attr->soc_id);
+ kfree_const(soc_dev_attr->family);
+ kfree(soc_dev_attr);
+ return PTR_ERR(soc_dev);
+ }
+
+ return 0;
+}
+early_initcall(renesas_soc_init);