mb/lowrisc: Remove the Nexys4DDR port

This board doesn't support the newest RISC-V Privileged Architecture
spec (1.10), and it's based on an FPGA so it's a moving target.

Now that there's actual RISC-V silicon out there (from SiFive),
mb/lowrisc/nexys4ddr will only continue to bitrot.

Change-Id: I4e3e715106a1a94381a563dc4a56781c35883c2d
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/28706
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philipp Hug <philipp@hug.cx>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

1 files changed, 0 insertions, 35 deletions

diff --git a/src/mainboard/lowrisc/nexys4ddr/mainboard.c b/src/mainboard/lowrisc/nexys4ddr/mainboard.c
deleted file mode 100644
index 3ef833741d..0000000000
--- a/src/mainboard/lowrisc/nexys4ddr/mainboard.c
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2016 Google, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <cbmem.h>
-#include <device/device.h>
-#include <symbols.h>
-
-static void mainboard_enable(struct device *dev)
-{
-	uintptr_t ram_base;
-	size_t ram_size;
-
-	/* FIXME: These values shouldn't necessarily be hardcoded */
-	ram_base = 0x80000000;
-	ram_size = 128 * MiB;
-	ram_resource(dev, 0, ram_base / KiB, ram_size / KiB);
-
-	cbmem_initialize_empty();
-}
-
-struct chip_operations mainboard_ops = {
-	.enable_dev = mainboard_enable,
-};