1 files changed, 53 insertions, 0 deletions
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),
+};