ARM: renesas: Add R8A77990 E3 Ebisu board

Add support for the R8A77990 Ebisu board.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

4 files changed, 117 insertions, 0 deletions

diff --git a/board/renesas/ebisu/Kconfig b/board/renesas/ebisu/Kconfig
new file mode 100644
index 0000000000..f500a94c9a
--- /dev/null
+++ b/board/renesas/ebisu/Kconfig
@@ -0,0 +1,15 @@
+if TARGET_EBISU
+
+config SYS_SOC
+	default "rmobile"
+
+config SYS_BOARD
+	default "ebisu"
+
+config SYS_VENDOR
+	default "renesas"
+
+config SYS_CONFIG_NAME
+	default "ebisu"
+
+endif
diff --git a/board/renesas/ebisu/MAINTAINERS b/board/renesas/ebisu/MAINTAINERS
new file mode 100644
index 0000000000..facad520ca
--- /dev/null
+++ b/board/renesas/ebisu/MAINTAINERS
@@ -0,0 +1,6 @@
+EBISU BOARD
+M:	Marek Vasut <marek.vasut+renesas@gmail.com>
+S:	Maintained
+F:	board/renesas/ebisu/
+F:	include/configs/ebisu.h
+F:	configs/r8a77990_ebisu_defconfig
diff --git a/board/renesas/ebisu/Makefile b/board/renesas/ebisu/Makefile
new file mode 100644
index 0000000000..2741035c57
--- /dev/null
+++ b/board/renesas/ebisu/Makefile
@@ -0,0 +1,9 @@
+#
+# board/renesas/ebisu/Makefile
+#
+# Copyright (C) 2018 Renesas Electronics Corporation
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+obj-y	:= ebisu.o
diff --git a/board/renesas/ebisu/ebisu.c b/board/renesas/ebisu/ebisu.c
new file mode 100644
index 0000000000..92062141a2
--- /dev/null
+++ b/board/renesas/ebisu/ebisu.c
@@ -0,0 +1,87 @@
+/*
+ * board/renesas/ebisu/ebisu.c
+ *     This file is Ebisu board support.
+ *
+ * Copyright (C) 2018 Marek Vasut <marek.vasut+renesas@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <malloc.h>
+#include <netdev.h>
+#include <dm.h>
+#include <dm/platform_data/serial_sh.h>
+#include <asm/processor.h>
+#include <asm/mach-types.h>
+#include <asm/io.h>
+#include <linux/errno.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/gpio.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/rmobile.h>
+#include <asm/arch/rcar-mstp.h>
+#include <asm/arch/sh_sdhi.h>
+#include <i2c.h>
+#include <mmc.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void s_init(void)
+{
+}
+
+#define TMU0_MSTP125		BIT(25)	/* secure */
+
+int board_early_init_f(void)
+{
+	/* TMU0 */
+	mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125);
+
+	return 0;
+}
+
+int board_init(void)
+{
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = CONFIG_SYS_TEXT_BASE + 0x50000;
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	if (fdtdec_setup_memory_size() != 0)
+		return -EINVAL;
+
+	return 0;
+}
+
+int dram_init_banksize(void)
+{
+	fdtdec_setup_memory_banksize();
+
+	return 0;
+}
+
+#define RST_BASE	0xE6160000
+#define RST_CA57RESCNT	(RST_BASE + 0x40)
+#define RST_CA53RESCNT	(RST_BASE + 0x44)
+#define RST_RSTOUTCR	(RST_BASE + 0x58)
+#define RST_CA57_CODE	0xA5A5000F
+#define RST_CA53_CODE	0x5A5A000F
+
+void reset_cpu(ulong addr)
+{
+	unsigned long midr, cputype;
+
+	asm volatile("mrs %0, midr_el1" : "=r" (midr));
+	cputype = (midr >> 4) & 0xfff;
+
+	if (cputype == 0xd03)
+		writel(RST_CA53_CODE, RST_CA53RESCNT);
+	else if (cputype == 0xd07)
+		writel(RST_CA57_CODE, RST_CA57RESCNT);
+	else
+		hang();
+}