arc: Rename ARCangel4 board to nSIM

ARCangel was one of the main development boards back in the day but
now it's gone and replaced by other boards like ARC SDP.

But we also used to have simulation platform very similar to ARCangel4
in terms of CPU settings as well as basic IO like UART. Even though
ARCangel4 is long gone now we have a replacement for simulation which is
a plain or stand-alone nSIM and Free nSIM.

Note Free nSIM is available for download here:
https://www.synopsys.com/cgi-bin/dwarcnsim/req1.cgi

And while at it:
 * Finally switch hex numerical values in nsim.h to defines from
   include/linux/sizes.h
 * Add defconfigs with ARC HS38 cores
 * Recreated all defconfigs with savedefconfig

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

1 files changed, 72 insertions, 0 deletions

diff --git a/include/configs/nsim.h b/include/configs/nsim.h
new file mode 100644
index 0000000..1edc560
--- /dev/null
+++ b/include/configs/nsim.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2013-2016 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _CONFIG_NSIM_H_
+#define _CONFIG_NSIM_H_
+
+#include <linux/sizes.h>
+
+/*
+ *  CPU configuration
+ */
+#define CONFIG_SYS_TIMER_RATE		CONFIG_SYS_CLK_FREQ
+
+/*
+ * Memory configuration
+ */
+#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		SZ_256M
+
+#define CONFIG_SYS_INIT_SP_ADDR		\
+	(CONFIG_SYS_SDRAM_BASE + 0x1000 - GENERATED_GBL_DATA_SIZE)
+
+#define CONFIG_SYS_MALLOC_LEN		SZ_2M
+#define CONFIG_SYS_BOOTM_LEN		SZ_32M
+#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
+ */
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_SYS_MAXARGS		16
+
+/*
+ * Environment settings
+ */
+#define CONFIG_ENV_IS_NOWHERE
+#define CONFIG_ENV_SIZE			SZ_512
+#define CONFIG_ENV_OFFSET		0
+
+/*
+ * Environment configuration
+ */
+#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_CBSIZE		SZ_256
+#define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE
+#define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + \
+						sizeof(CONFIG_SYS_PROMPT) + 16)
+
+#endif /* _CONFIG_NSIM_H_ */