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-rw-r--r--arch/powerpc/boot/44x.c85
1 files changed, 0 insertions, 85 deletions
diff --git a/arch/powerpc/boot/44x.c b/arch/powerpc/boot/44x.c
deleted file mode 100644
index 9f64e840bef6..000000000000
--- a/arch/powerpc/boot/44x.c
+++ /dev/null
@@ -1,85 +0,0 @@
1/*
2 * Copyright 2007 David Gibson, IBM Corporation.
3 *
4 * Based on earlier code:
5 * Matt Porter <mporter@kernel.crashing.org>
6 * Copyright 2002-2005 MontaVista Software Inc.
7 *
8 * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
9 * Copyright (c) 2003, 2004 Zultys Technologies
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version
14 * 2 of the License, or (at your option) any later version.
15 */
16#include <stddef.h>
17#include "types.h"
18#include "string.h"
19#include "stdio.h"
20#include "ops.h"
21#include "reg.h"
22#include "dcr.h"
23
24/* Read the 44x memory controller to get size of system memory. */
25void ibm44x_fixup_memsize(void)
26{
27 int i;
28 unsigned long memsize, bank_config;
29
30 memsize = 0;
31 for (i = 0; i < ARRAY_SIZE(sdram_bxcr); i++) {
32 mtdcr(DCRN_SDRAM0_CFGADDR, sdram_bxcr[i]);
33 bank_config = mfdcr(DCRN_SDRAM0_CFGDATA);
34
35 if (bank_config & SDRAM_CONFIG_BANK_ENABLE)
36 memsize += SDRAM_CONFIG_BANK_SIZE(bank_config);
37 }
38
39 dt_fixup_memory(0, memsize);
40}
41
42#define SPRN_DBCR0 0x134
43#define DBCR0_RST_SYSTEM 0x30000000
44
45void ibm44x_dbcr_reset(void)
46{
47 unsigned long tmp;
48
49 asm volatile (
50 "mfspr %0,%1\n"
51 "oris %0,%0,%2@h\n"
52 "mtspr %1,%0"
53 : "=&r"(tmp) : "i"(SPRN_DBCR0), "i"(DBCR0_RST_SYSTEM)
54 );
55
56}
57
58/* Read 4xx EBC bus bridge registers to get mappings of the peripheral
59 * banks into the OPB address space */
60void ibm4xx_fixup_ebc_ranges(const char *ebc)
61{
62 void *devp;
63 u32 bxcr;
64 u32 ranges[EBC_NUM_BANKS*4];
65 u32 *p = ranges;
66 int i;
67
68 for (i = 0; i < EBC_NUM_BANKS; i++) {
69 mtdcr(DCRN_EBC0_CFGADDR, EBC_BXCR(i));
70 bxcr = mfdcr(DCRN_EBC0_CFGDATA);
71
72 if ((bxcr & EBC_BXCR_BU) != EBC_BXCR_BU_OFF) {
73 *p++ = i;
74 *p++ = 0;
75 *p++ = bxcr & EBC_BXCR_BAS;
76 *p++ = EBC_BXCR_BANK_SIZE(bxcr);
77 }
78 }
79
80 devp = finddevice(ebc);
81 if (! devp)
82 fatal("Couldn't locate EBC node %s\n\r", ebc);
83
84 setprop(devp, "ranges", ranges, (p - ranges) * sizeof(u32));
85}