MIPS: generic: Convert SEAD-3 to a generic board

Convert the MIPS SEAD-3 board support to be a generic board, supported
by generic kernels.

Because the SEAD-3 boot protocol was defined long ago and we don't want
to force a switch to the UHI protocol, SEAD-3 is added as a legacy board
which is detected by reading the REVISION register. This may technically
not be a valid memory read & future work will include attempting to
handle that gracefully. In practice since SEAD-3 is the only legacy
board supported by the generic kernel so far the read will only happen
on SEAD-3 boards, and even once Malta is converted the same REVISION
register exists there too. Other boards such as Boston, Ci20 & Ci40 will
use the UHI boot protocol & thus not run any of the legacy board detect
functions.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14354/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 0 insertions, 39 deletions

diff --git a/arch/mips/mti-sead3/sead3-setup.c b/arch/mips/mti-sead3/sead3-setup.c
deleted file mode 100644
index c915e54..0000000
--- a/arch/mips/mti-sead3/sead3-setup.c
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2012 MIPS Technologies, Inc.  All rights reserved.
- * Copyright (C) 2013 Imagination Technologies Ltd.
- */
-#include <linux/init.h>
-#include <linux/libfdt.h>
-#include <linux/of_fdt.h>
-
-#include <asm/prom.h>
-
-#include <asm/mach-sead3/sead3-dtshim.h>
-#include <asm/mips-boards/generic.h>
-
-const char *get_system_type(void)
-{
-	return "MIPS SEAD3";
-}
-
-void __init *plat_get_fdt(void)
-{
-	return (void *)__dtb_start;
-}
-
-void __init plat_mem_setup(void)
-{
-	void *fdt = plat_get_fdt();
-
-	fdt = sead3_dt_shim(fdt);
-	__dt_setup_arch(fdt);
-}
-
-void __init device_tree_init(void)
-{
-	unflatten_and_copy_device_tree();
-}