ARC: nsim_hs38: Add support of Virtio NET & BLK

Given now nsim_hs38 configuration is usable on QEMU and in QEMU
we have Virtio working perfectly fine the next logical step
is to add support of supported & known to work net & bkl to this
config.

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

4 files changed, 42 insertions, 0 deletions

diff --git a/board/synopsys/Kconfig b/board/synopsys/nsim/Kconfig
index 27e5509b26..22287032bf 100644
--- a/board/synopsys/Kconfig
+++ b/board/synopsys/nsim/Kconfig
@@ -1,5 +1,8 @@
 if TARGET_NSIM
 
+config SYS_BOARD
+	default "nsim"
+
 config SYS_VENDOR
 	default "synopsys"
 
diff --git a/board/synopsys/nsim/MAINTAINERS b/board/synopsys/nsim/MAINTAINERS
new file mode 100644
index 0000000000..ad23c8338e
--- /dev/null
+++ b/board/synopsys/nsim/MAINTAINERS
@@ -0,0 +1,6 @@
+ARC SIMULATION & PROTOTYPING PLATFORMS
+M:	Alexey Brodkin <abrodkin@synopsys.com>
+S:	Maintained
+F:	arch/arc/dts/nsim.dts
+F:	board/synopsys/nsim/
+F:	configs/nsim_*_defconfig
diff --git a/board/synopsys/nsim/Makefile b/board/synopsys/nsim/Makefile
new file mode 100644
index 0000000000..6aaffffa73
--- /dev/null
+++ b/board/synopsys/nsim/Makefile
@@ -0,0 +1,7 @@
+#
+# Copyright (C) 2020 Synopsys, Inc. All rights reserved.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	+= nsim.o
diff --git a/board/synopsys/nsim/nsim.c b/board/synopsys/nsim/nsim.c
new file mode 100644
index 0000000000..f384f707f6
--- /dev/null
+++ b/board/synopsys/nsim/nsim.c
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2020 Synopsys, Inc. All rights reserved.
+ */
+
+#include <common.h>
+#include <dm/device.h>
+#include <virtio_types.h>
+#include <virtio.h>
+
+int board_early_init_r(void)
+{
+	/*
+	 * Make sure virtio bus is enumerated so that peripherals
+	 * on the virtio bus can be discovered by their drivers
+	 */
+	virtio_init();
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	printf("Board: ARC virtual or prototyping platform\n");
+	return 0;
+};