1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
/*
* (C) Copyright 2000-2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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; either version 2 of
* the License, or (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* CPU specific code for the MPC5xxx CPUs
*/
#include <common.h>
#include <watchdog.h>
#include <command.h>
#include <mpc5xxx.h>
#include <asm/processor.h>
#if defined(CONFIG_OF_FLAT_TREE)
#include <ft_build.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
int checkcpu (void)
{
ulong clock = gd->cpu_clk;
char buf[32];
#ifndef CONFIG_MGT5100
uint svr, pvr;
#endif
puts ("CPU: ");
#ifdef CONFIG_MGT5100
puts (CPU_ID_STR);
printf (" (JTAG ID %08lx)", *(vu_long *)MPC5XXX_CDM_JTAGID);
#else
svr = get_svr();
pvr = get_pvr();
switch (SVR_VER (svr)) {
case SVR_MPC5200:
printf ("MPC5200");
break;
default:
printf ("MPC52?? (SVR %08x)", svr);
break;
}
printf (" v%d.%d, Core v%d.%d", SVR_MJREV (svr), SVR_MNREV (svr),
PVR_MAJ(pvr), PVR_MIN(pvr));
#endif
printf (" at %s MHz\n", strmhz (buf, clock));
return 0;
}
/* ------------------------------------------------------------------------- */
int
do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
ulong msr;
/* Interrupts and MMU off */
__asm__ __volatile__ ("mfmsr %0":"=r" (msr):);
msr &= ~(MSR_ME | MSR_EE | MSR_IR | MSR_DR);
__asm__ __volatile__ ("mtmsr %0"::"r" (msr));
/* Charge the watchdog timer */
*(vu_long *)(MPC5XXX_GPT0_COUNTER) = 0x0001000f;
*(vu_long *)(MPC5XXX_GPT0_ENABLE) = 0x9004; /* wden|ce|timer_ms */
while(1);
return 1;
}
/* ------------------------------------------------------------------------- */
/*
* Get timebase clock frequency (like cpu_clk in Hz)
*
*/
unsigned long get_tbclk (void)
{
ulong tbclk;
tbclk = (gd->bus_clk + 3L) / 4L;
return (tbclk);
}
/* ------------------------------------------------------------------------- */
#ifdef CONFIG_OF_FLAT_TREE
void
ft_cpu_setup(void *blob, bd_t *bd)
{
u32 *p;
ulong clock;
int len;
clock = bd->bi_busfreq;
p = ft_get_prop(blob, "/cpus/" OF_CPU "/bus-frequency", &len);
if (p != NULL)
*p = cpu_to_be32(clock);
p = ft_get_prop(blob, "/" OF_SOC "/bus-frequency", &len);
if (p != NULL)
*p = cpu_to_be32(clock);
p = ft_get_prop(blob, "/" OF_SOC "/ethernet@3000/mac-address", &len);
if (p != NULL)
memcpy(p, bd->bi_enetaddr, 6);
}
#endif
|
