cpu/nb/sb: Remove fam12

With removal of Torpedo mainboard, this code is no longer
necessary. This also removes fam12 support from northbridge
and SB900 from southbridge.

Change-Id: I8a30461278844d0d9ad4320f0e952774c4fd644f
Signed-off-by: Joe Moore <awokd@danwin1210.me>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36188
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

1 files changed, 0 insertions, 43 deletions

diff --git a/src/southbridge/amd/cimx/sb900/ramtop.c b/src/southbridge/amd/cimx/sb900/ramtop.c
deleted file mode 100644
index 26e930bb7e..0000000000
--- a/src/southbridge/amd/cimx/sb900/ramtop.c
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2010 Advanced Micro Devices, 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 <stdint.h>
-#include <arch/io.h>
-#include <cbmem.h>
-#include <southbridge/amd/cimx/cimx_util.h>
-
-void backup_top_of_low_cacheable(uintptr_t ramtop)
-{
-	u32 dword = ramtop;
-	int nvram_pos = 0xf8, i; /* temp */
-	for (i = 0; i < 4; i++) {
-		outb(nvram_pos, BIOSRAM_INDEX);
-		outb((dword >> (8 * i)) & 0xff, BIOSRAM_DATA);
-		nvram_pos++;
-	}
-}
-
-uintptr_t restore_top_of_low_cacheable(void)
-{
-	u32 xdata = 0;
-	int xnvram_pos = 0xf8, xi;
-	for (xi = 0; xi < 4; xi++) {
-		outb(xnvram_pos, BIOSRAM_INDEX);
-		xdata &= ~(0xff << (xi * 8));
-		xdata |= inb(BIOSRAM_DATA) << (xi *8);
-		xnvram_pos++;
-	}
-	return xdata;
-}