1/*  *********************************************************************
2    *  Broadcom Common Firmware Environment (CFE)
3    *
4    *  Physical Memory (arena) manager		File: ppc_arena.c
5    *
6    *  This module describes the physical memory available to the
7    *  firmware.
8    *
9    *  Author:  Mitch Lichtenberg
10    *
11    *********************************************************************
12    *
13    *  Copyright 2000,2001,2002,2003
14    *  Broadcom Corporation. All rights reserved.
15    *
16    *  This software is furnished under license and may be used and
17    *  copied only in accordance with the following terms and
18    *  conditions.  Subject to these conditions, you may download,
19    *  copy, install, use, modify and distribute modified or unmodified
20    *  copies of this software in source and/or binary form.  No title
21    *  or ownership is transferred hereby.
22    *
23    *  1) Any source code used, modified or distributed must reproduce
24    *     and retain this copyright notice and list of conditions
25    *     as they appear in the source file.
26    *
27    *  2) No right is granted to use any trade name, trademark, or
28    *     logo of Broadcom Corporation.  The "Broadcom Corporation"
29    *     name may not be used to endorse or promote products derived
30    *     from this software without the prior written permission of
31    *     Broadcom Corporation.
32    *
33    *  3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR
34    *     IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED
35    *     WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
36    *     PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT
37    *     SHALL BROADCOM BE LIABLE FOR ANY DAMAGES WHATSOEVER, AND IN
38    *     PARTICULAR, BROADCOM SHALL NOT BE LIABLE FOR DIRECT, INDIRECT,
39    *     INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
40    *     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
41    *     GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
42    *     BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
43    *     OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
44    *     TORT (INCLUDING NEGLIGENCE OR OTHERWISE), EVEN IF ADVISED OF
45    *     THE POSSIBILITY OF SUCH DAMAGE.
46    ********************************************************************* */
47
48#include "cfe.h"
49#include "cfe_mem.h"
50#include "lib_arena.h"
51
52#include "initdata.h"
53
54#define _NOPROTOS_
55#include "cfe_boot.h"
56#undef _NOPROTOS_
57
58/*  *********************************************************************
59    *  Constants
60    ********************************************************************* */
61
62
63#define MEG	(1024*1024)
64#define KB      1024
65#define PAGESIZE 4096
66#define CFE_BOOTAREA_SIZE (256*KB)
67#define CFE_BOOTAREA_ADDR 0x20000000
68
69
70/*  *********************************************************************
71    *  Globals
72    ********************************************************************* */
73
74extern arena_t cfe_arena;
75
76void cfe_bootarea_init(void);
77void ppc_arena_init(void);
78
79
80/*  *********************************************************************
81    *  CFE_BOOTAREA_INIT()
82    *
83    *  Initialize the page table and map our boot program area.
84    *
85    *  Input parameters:
86    *  	   nothing
87    *
88    *  Return value:
89    *  	   nothing
90    ********************************************************************* */
91
92void cfe_bootarea_init(void)
93{
94
95}
96
97
98/*  *********************************************************************
99    *  ppc_arena_init()
100    *
101    *  Create the initial map of physical memory
102    *
103    *  Input parameters:
104    *  	   nothing
105    *
106    *  Return value:
107    *  	   nothing
108    ********************************************************************* */
109
110void ppc_arena_init(void)
111{
112    uint64_t memamt;
113
114    arena_init(&cfe_arena,0x0,0x100000000ULL);
115
116#if 0
117    /*
118     * Mark the ranges from the SB1250's memory map
119     */
120
121    ARENA_RANGE(0x0000000000,0x000FFFFFFF,MEMTYPE_DRAM_NOTINSTALLED);
122    ARENA_RANGE(0x0080000000,0x009FFFFFFF,MEMTYPE_DRAM_NOTINSTALLED);
123    ARENA_RANGE(0x00C0000000,0x00CFFFFFFF,MEMTYPE_DRAM_NOTINSTALLED);
124    ARENA_RANGE(0x0100000000,0x7FFFFFFFFF,MEMTYPE_DRAM_NOTINSTALLED);
125    /*
126     * Mark LDT and PCI regions
127     */
128
129    ARENA_RANGE(0x0040000000,0x005FFFFFFF,MEMTYPE_LDT_PCI);
130    ARENA_RANGE(0x0060000000,0x007FFFFFFF,MEMTYPE_LDT_PCI);
131
132    ARENA_RANGE(0x00D8000000,0x00DFFFFFFF,MEMTYPE_LDT_PCI);
133
134    ARENA_RANGE(0x00F8000000,0x00FFFFFFFF,MEMTYPE_LDT_PCI);
135    ARENA_RANGE(0xF800000000,0xF9FFFFFFFF,MEMTYPE_LDT_PCI);
136
137    ARENA_RANGE(0xFD00000000,0xFFFFFFFFFF,MEMTYPE_LDT_PCI);
138
139    /*
140     * System IO registers
141     */
142
143    ARENA_RANGE(0x0010000000,0x001002FFFF,MEMTYPE_IOREGISTERS);
144#endif
145
146    /*
147     * Now, fix up the map with what is known about *this* system.
148     *
149     * Do each 256MB chunk.
150     */
151
152    memamt = ((int64_t) mem_totalsize) << 20;
153    arena_markrange(&cfe_arena,0x00000000,memamt,MEMTYPE_DRAM_AVAILABLE,NULL);
154
155#if 0
156    memleft = ((int64_t) mem_totalsize) << 20;
157
158    memamt = (memleft > mem256) ? mem256 : memleft;
159
160    arena_markrange(&cfe_arena,0x00000000,memamt,MEMTYPE_DRAM_AVAILABLE,NULL);
161    memleft -= memamt;
162
163    if (memleft) {
164	memamt = (memleft > mem256*2) ? mem256*2 : memleft;
165	arena_markrange(&cfe_arena,0x80000000,memamt,MEMTYPE_DRAM_AVAILABLE,NULL);
166	memleft -= memamt;
167	}
168
169    if (memleft) {
170	memamt = (memleft > mem256) ? mem256 : memleft;
171	arena_markrange(&cfe_arena,0xC0000000,memamt,MEMTYPE_DRAM_AVAILABLE,NULL);
172	memleft -= memamt;
173	}
174
175    if (memleft) {
176	arena_markrange(&cfe_arena,0x100000000,memleft,MEMTYPE_DRAM_AVAILABLE,NULL);
177	}
178
179
180    /*
181     * Do the boot ROM
182     */
183
184    arena_markrange(&cfe_arena,0x1FC00000,2*1024*1024,MEMTYPE_BOOTROM,NULL);
185#endif
186
187}
188
189
190