arc: add Arcangel4 board support

Arcangel4 is a FPGA-based development board that is used for prototyping and
verificationof of both ARC hardware (CPUs) and software running upon CPU.

This board avaialble in 2 flavours:
 * Little-endian (arcangel4)
 * Big-endian (arcangel4-be)

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>

Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Francois Bedard <fbedard@synopsys.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Heiko Schocher <hs@denx.de>

4 files changed, 196 insertions, 0 deletions

diff --git a/board/synopsys/arcangel4/Makefile b/board/synopsys/arcangel4/Makefile
new file mode 100644
index 0000000..575e58f
--- /dev/null
+++ b/board/synopsys/arcangel4/Makefile
@@ -0,0 +1,11 @@
+#
+# Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+# This board is mostly used for debugging U-Boot in simulation (ISS).
+# The only peripheral which is used on this board is a serial port which
+# requires no initialization except those in "include/configs/arcangel4.h".
+# And now there's no specific initializations for this board.
+# So this Makefile is only required for satisfaction of U-Boot build system.
diff --git a/boards.cfg b/boards.cfg
index 706ec96..de39bfa 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -1230,6 +1230,8 @@ Active  sparc       leon3          -           gaisler         -
 Active  sparc       leon3          -           gaisler         -                   gr_xc3s_1500                         -                                                                                                                                 -
 Active  sparc       leon3          -           gaisler         -                   grsim                                -                                                                                                                                 -
 Active  x86         x86            coreboot    chromebook-x86  coreboot            coreboot-x86                         coreboot:SYS_TEXT_BASE=0x01110000                                                                                                 -
+Active  arc         arc700         -           synopsys        -                   arcangel4                            -                                                                                                                                 Alexey Brodkin <abrodkin@synopsys.com>
+Active  arc         arc700         -           synopsys        arcangel4           arcangel4-be                            -                                                                                                                              Alexey Brodkin <abrodkin@synopsys.com>
 Orphan  arm         arm1136        mx31        -               imx31_phycore       imx31_phycore_eet                    imx31_phycore:IMX31_PHYCORE_EET                                                                                                   (resigned) Guennadi Liakhovetski <g.liakhovetski@gmx.de>
 Orphan  arm         arm1136        mx31        freescale       -                   mx31ads                              -                                                                                                                                 (resigned) Guennadi Liakhovetski <g.liakhovetski@gmx.de>
 Orphan  arm         pxa            -           -               -                   lubbock                              -                                                                                                                                 (dead address) Kyle Harris <kharris@nexus-tech.net>
diff --git a/include/configs/arcangel4-be.h b/include/configs/arcangel4-be.h
new file mode 100644
index 0000000..88d27db
--- /dev/null
+++ b/include/configs/arcangel4-be.h
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _CONFIG_ARCANGEL4_H_
+#define _CONFIG_ARCANGEL4_H_
+
+/*
+ *  CPU configuration
+ */
+#define CONFIG_SYS_BIG_ENDIAN
+#define CONFIG_ARC700
+#define CONFIG_ARC_MMU_VER		3
+#define CONFIG_SYS_CACHELINE_SIZE	64
+#define CONFIG_SYS_CLK_FREQ		70000000
+#define CONFIG_SYS_TIMER_RATE		CONFIG_SYS_CLK_FREQ
+
+/*
+ * Board configuration
+ */
+#define CONFIG_SYS_GENERIC_BOARD
+#define CONFIG_SKIP_LOWLEVEL_INIT	/* U-Boot is in RAM already */
+
+#define CONFIG_ARCH_EARLY_INIT_R
+
+/*
+ * Memory configuration
+ */
+#define CONFIG_SYS_TEXT_BASE		0x81000000
+#define CONFIG_SYS_MONITOR_BASE		CONFIG_SYS_TEXT_BASE
+
+#define CONFIG_SYS_DDR_SDRAM_BASE	0x80000000
+#define CONFIG_SYS_SDRAM_BASE		CONFIG_SYS_DDR_SDRAM_BASE
+#define CONFIG_SYS_SDRAM_SIZE		0x10000000	/* 256 Mb */
+
+#define CONFIG_SYS_INIT_SP_ADDR		\
+	(CONFIG_SYS_SDRAM_BASE + 0x1000 - GENERATED_GBL_DATA_SIZE)
+
+#define CONFIG_SYS_MALLOC_LEN		0x200000	/* 2 MB */
+#define CONFIG_SYS_BOOTM_LEN		0x2000000	/* 32 MB */
+#define CONFIG_SYS_LOAD_ADDR		0x82000000
+
+#define CONFIG_SYS_NO_FLASH
+
+/*
+ * UART configuration
+ *
+ */
+#define CONFIG_ARC_SERIAL
+#define CONFIG_ARC_UART_BASE		0xC0FC1000
+#define CONFIG_BAUDRATE			115200
+
+/*
+ * Command line configuration
+ */
+#include <config_cmd_default.h>
+
+#define CONFIG_CMD_ELF
+
+#define CONFIG_OF_LIBFDT
+
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_SYS_MAXARGS		16
+
+/*
+ * Environment settings
+ */
+#define CONFIG_ENV_IS_NOWHERE
+#define CONFIG_ENV_SIZE			0x00200		/* 512 bytes */
+#define CONFIG_ENV_OFFSET		0
+
+/*
+ * Environment configuration
+ */
+#define CONFIG_BOOTDELAY		3
+#define CONFIG_BOOTFILE			"uImage"
+#define CONFIG_BOOTARGS			"console=ttyARC0,115200n8"
+#define CONFIG_LOADADDR			CONFIG_SYS_LOAD_ADDR
+
+/*
+ * Console configuration
+ */
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_SYS_PROMPT		"arcangel4# "
+#define CONFIG_SYS_CBSIZE		256
+#define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE
+#define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + \
+						sizeof(CONFIG_SYS_PROMPT) + 16)
+
+#endif /* _CONFIG_ARCANGEL4_H_ */
diff --git a/include/configs/arcangel4.h b/include/configs/arcangel4.h
new file mode 100644
index 0000000..4579eb9
--- /dev/null
+++ b/include/configs/arcangel4.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _CONFIG_ARCANGEL4_H_
+#define _CONFIG_ARCANGEL4_H_
+
+/*
+ *  CPU configuration
+ */
+#define CONFIG_ARC700
+#define CONFIG_ARC_MMU_VER		3
+#define CONFIG_SYS_CACHELINE_SIZE	64
+#define CONFIG_SYS_CLK_FREQ		70000000
+#define CONFIG_SYS_TIMER_RATE		CONFIG_SYS_CLK_FREQ
+
+/*
+ * Board configuration
+ */
+#define CONFIG_SYS_GENERIC_BOARD
+#define CONFIG_SKIP_LOWLEVEL_INIT	/* U-Boot is in RAM already */
+
+#define CONFIG_ARCH_EARLY_INIT_R
+
+/*
+ * Memory configuration
+ */
+#define CONFIG_SYS_TEXT_BASE		0x81000000
+#define CONFIG_SYS_MONITOR_BASE		CONFIG_SYS_TEXT_BASE
+
+#define CONFIG_SYS_DDR_SDRAM_BASE	0x80000000
+#define CONFIG_SYS_SDRAM_BASE		CONFIG_SYS_DDR_SDRAM_BASE
+#define CONFIG_SYS_SDRAM_SIZE		0x10000000	/* 256 Mb */
+
+#define CONFIG_SYS_INIT_SP_ADDR		\
+	(CONFIG_SYS_SDRAM_BASE + 0x1000 - GENERATED_GBL_DATA_SIZE)
+
+#define CONFIG_SYS_MALLOC_LEN		0x200000	/* 2 MB */
+#define CONFIG_SYS_BOOTM_LEN		0x2000000	/* 32 MB */
+#define CONFIG_SYS_LOAD_ADDR		0x82000000
+
+#define CONFIG_SYS_NO_FLASH
+
+/*
+ * UART configuration
+ *
+ */
+#define CONFIG_ARC_SERIAL
+#define CONFIG_ARC_UART_BASE		0xC0FC1000
+#define CONFIG_BAUDRATE			115200
+
+/*
+ * Command line configuration
+ */
+#include <config_cmd_default.h>
+
+#define CONFIG_CMD_ELF
+
+#define CONFIG_OF_LIBFDT
+
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_SYS_MAXARGS		16
+
+/*
+ * Environment settings
+ */
+#define CONFIG_ENV_IS_NOWHERE
+#define CONFIG_ENV_SIZE			0x00200		/* 512 bytes */
+#define CONFIG_ENV_OFFSET		0
+
+/*
+ * Environment configuration
+ */
+#define CONFIG_BOOTDELAY		3
+#define CONFIG_BOOTFILE			"uImage"
+#define CONFIG_BOOTARGS			"console=ttyARC0,115200n8"
+#define CONFIG_LOADADDR			CONFIG_SYS_LOAD_ADDR
+
+/*
+ * Console configuration
+ */
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_SYS_PROMPT		"arcangel4# "
+#define CONFIG_SYS_CBSIZE		256
+#define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE
+#define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + \
+						sizeof(CONFIG_SYS_PROMPT) + 16)
+
+#endif /* _CONFIG_ARCANGEL4_H_ */