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
|
/*
* (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 <command.h>
#include <asm/arch/mpc5xxx.h>
#include <asm/processor.h>
#include <asm/byteorder.h>
#include <init.h>
#include <types.h>
#include <asm/arch/clocks.h>
#if defined(CONFIG_OF_FLAT_TREE)
#include <ft_build.h>
#endif
int checkcpu (void)
{
ulong clock = get_cpu_clock();
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;
}
/* ------------------------------------------------------------------------- */
void do_reset (void)
{
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);
}
/* ------------------------------------------------------------------------- */
#ifdef CONFIG_OF_FLAT_TREE
void
ft_cpu_setup(void *blob, bd_t *bd)
{
u32 *p;
int len;
/* Core XLB bus frequency */
p = ft_get_prop(blob, "/cpus/" OF_CPU "/bus-frequency", &len);
if (p != NULL)
*p = cpu_to_be32(get_bus_clock());
/* SOC peripherals use the IPB bus frequency */
p = ft_get_prop(blob, "/" OF_SOC "/bus-frequency", &len);
if (p != NULL)
*p = cpu_to_be32(get_ipb_clock());
p = ft_get_prop(blob, "/" OF_SOC "/ethernet@3000/mac-address", &len);
if (p != NULL)
memcpy(p, bd->bi_enetaddr, 6);
}
#endif
int cpu_init_board_data(bd_t *bd)
{
bd->bi_intfreq = get_cpu_clock(); /* Internal Freq, in Hz */
bd->bi_busfreq = get_bus_clock(); /* Bus Freq, in Hz */
bd->bi_mbar_base = CFG_MBAR; /* base of internal registers */
bd->bi_ipbfreq = get_ipb_clock();
bd->bi_pcifreq = get_pci_clock();
return 0;
}
|
