TEXT_BASE is in board/sandpoint/config.mk so say so...
[u-boot.git] / cpu / mpc83xx / cpu_init.c
1 /*
2  * Copyright 2004 Freescale Semiconductor, Inc.
3  *
4  * See file CREDITS for list of people who contributed to this
5  * project.
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License as
9  * published by the Free Software Foundation; either version 2 of
10  * the License, or (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20  * MA 02111-1307 USA
21  *
22  * Change log:
23  *
24  * 20050101: Eran Liberty (liberty@freescale.com)
25  *           Initial file creating (porting from 85XX & 8260)
26  */
27
28 #include <common.h>
29 #include <mpc83xx.h>
30 #include <ioports.h>
31
32 /*
33  * Breathe some life into the CPU...
34  *
35  * Set up the memory map,
36  * initialize a bunch of registers,
37  * initialize the UPM's
38  */
39 void cpu_init_f (volatile immap_t * im)
40 {
41         DECLARE_GLOBAL_DATA_PTR;
42
43         /* Pointer is writable since we allocated a register for it */
44         gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
45
46         /* Clear initial global data */
47         memset ((void *) gd, 0, sizeof (gd_t));
48
49         /* RSR - Reset Status Register - clear all status (4.6.1.3) */
50         gd->reset_status = im->reset.rsr;
51         im->reset.rsr = ~(RSR_RES);
52
53         /*
54          * RMR - Reset Mode Register
55          * contains checkstop reset enable (4.6.1.4)
56          */
57         im->reset.rmr = (RMR_CSRE & (1<<RMR_CSRE_SHIFT));
58
59         /* LCRR - Clock Ratio Register (10.3.1.16) */
60         im->lbus.lcrr = CFG_LCRR;
61
62         /* Enable Time Base & Decrimenter ( so we will have udelay() )*/
63         im->sysconf.spcr |= SPCR_TBEN;
64
65         /* System General Purpose Register */
66         im->sysconf.sicrh = SICRH_TSOBI1;
67         im->sysconf.sicrl = SICRL_LDP_A;
68
69         /*
70          * Memory Controller:
71          */
72
73         /* Map banks 0 and 1 to the FLASH banks 0 and 1 at preliminary
74          * addresses - these have to be modified later when FLASH size
75          * has been determined
76          */
77
78 #if defined(CFG_BR0_PRELIM)  \
79         && defined(CFG_OR0_PRELIM) \
80         && defined(CFG_LBLAWBAR0_PRELIM) \
81         && defined(CFG_LBLAWAR0_PRELIM)
82         im->lbus.bank[0].br = CFG_BR0_PRELIM;
83         im->lbus.bank[0].or = CFG_OR0_PRELIM;
84         im->sysconf.lblaw[0].bar = CFG_LBLAWBAR0_PRELIM;
85         im->sysconf.lblaw[0].ar = CFG_LBLAWAR0_PRELIM;
86 #else
87 #error  CFG_BR0_PRELIM, CFG_OR0_PRELIM, CFG_LBLAWBAR0_PRELIM & CFG_LBLAWAR0_PRELIM must be defined
88 #endif
89
90 #if defined(CFG_BR1_PRELIM)  \
91         && defined(CFG_OR1_PRELIM) \
92         && defined(CFG_LBLAWBAR1_PRELIM) \
93         && defined(CFG_LBLAWAR1_PRELIM)
94         im->lbus.bank[1].br = CFG_BR1_PRELIM;
95         im->lbus.bank[1].or = CFG_OR1_PRELIM;
96         im->sysconf.lblaw[1].bar = CFG_LBLAWBAR1_PRELIM;
97         im->sysconf.lblaw[1].ar = CFG_LBLAWAR1_PRELIM;
98 #endif
99 #if defined(CFG_BR2_PRELIM)  \
100         && defined(CFG_OR2_PRELIM) \
101         && defined(CFG_LBLAWBAR2_PRELIM) \
102         && defined(CFG_LBLAWAR2_PRELIM)
103         im->lbus.bank[2].br = CFG_BR2_PRELIM;
104         im->lbus.bank[2].or = CFG_OR2_PRELIM;
105         im->sysconf.lblaw[2].bar = CFG_LBLAWBAR2_PRELIM;
106         im->sysconf.lblaw[2].ar = CFG_LBLAWAR2_PRELIM;
107 #endif
108 #if defined(CFG_BR3_PRELIM)  \
109         && defined(CFG_OR3_PRELIM) \
110         && defined(CFG_LBLAWBAR3_PRELIM) \
111         && defined(CFG_LBLAWAR3_PRELIM)
112         im->lbus.bank[3].br = CFG_BR3_PRELIM;
113         im->lbus.bank[3].or = CFG_OR3_PRELIM;
114         im->sysconf.lblaw[3].bar = CFG_LBLAWBAR3_PRELIM;
115         im->sysconf.lblaw[3].ar = CFG_LBLAWAR3_PRELIM;
116 #endif
117 #if defined(CFG_BR4_PRELIM)  \
118         && defined(CFG_OR4_PRELIM) \
119         && defined(CFG_LBLAWBAR4_PRELIM) \
120         && defined(CFG_LBLAWAR4_PRELIM)
121         im->lbus.bank[4].br = CFG_BR4_PRELIM;
122         im->lbus.bank[4].or = CFG_OR4_PRELIM;
123         im->sysconf.lblaw[4].bar = CFG_LBLAWBAR4_PRELIM;
124         im->sysconf.lblaw[4].ar = CFG_LBLAWAR4_PRELIM;
125 #endif
126 #if defined(CFG_BR5_PRELIM)  \
127         && defined(CFG_OR5_PRELIM) \
128         && defined(CFG_LBLAWBAR5_PRELIM) \
129         && defined(CFG_LBLAWAR5_PRELIM)
130         im->lbus.bank[5].br = CFG_BR5_PRELIM;
131         im->lbus.bank[5].or = CFG_OR5_PRELIM;
132         im->sysconf.lblaw[5].bar = CFG_LBLAWBAR5_PRELIM;
133         im->sysconf.lblaw[5].ar = CFG_LBLAWAR5_PRELIM;
134 #endif
135 #if defined(CFG_BR6_PRELIM)  \
136         && defined(CFG_OR6_PRELIM) \
137         && defined(CFG_LBLAWBAR6_PRELIM) \
138         && defined(CFG_LBLAWAR6_PRELIM)
139         im->lbus.bank[6].br = CFG_BR6_PRELIM;
140         im->lbus.bank[6].or = CFG_OR6_PRELIM;
141         im->sysconf.lblaw[6].bar = CFG_LBLAWBAR6_PRELIM;
142         im->sysconf.lblaw[6].ar = CFG_LBLAWAR6_PRELIM;
143 #endif
144 #if defined(CFG_BR7_PRELIM)  \
145         && defined(CFG_OR7_PRELIM) \
146         && defined(CFG_LBLAWBAR7_PRELIM) \
147         && defined(CFG_LBLAWAR7_PRELIM)
148         im->lbus.bank[7].br = CFG_BR7_PRELIM;
149         im->lbus.bank[7].or = CFG_OR7_PRELIM;
150         im->sysconf.lblaw[7].bar = CFG_LBLAWBAR7_PRELIM;
151         im->sysconf.lblaw[7].ar = CFG_LBLAWAR7_PRELIM;
152 #endif
153 }
154
155
156 /*
157  * Initialize higher level parts of CPU like time base and timers.
158  */
159
160 int cpu_init_r (void)
161 {
162         return 0;
163 }