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
|
/*
* (C) Copyright 2000-2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
* TsiChung Liew (Tsi-Chung.Liew@freescale.com)
*
* 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
*/
#include <config.h>
#include <common.h>
#include <pci.h>
#include <asm/immap.h>
DECLARE_GLOBAL_DATA_PTR;
int checkboard(void)
{
puts("Board: ");
puts("Freescale FireEngine 5475 EVB\n");
return 0;
};
phys_size_t initdram(int board_type)
{
volatile siu_t *siu = (siu_t *) (MMAP_SIU);
volatile sdram_t *sdram = (volatile sdram_t *)(MMAP_SDRAM);
u32 dramsize, i;
#ifdef CFG_DRAMSZ1
u32 temp;
#endif
siu->drv = CFG_SDRAM_DRVSTRENGTH;
dramsize = CFG_DRAMSZ * 0x100000;
for (i = 0x13; i < 0x20; i++) {
if (dramsize == (1 << i))
break;
}
i--;
siu->cs0cfg = (CFG_SDRAM_BASE | i);
#ifdef CFG_DRAMSZ1
temp = CFG_DRAMSZ1 * 0x100000;
for (i = 0x13; i < 0x20; i++) {
if (temp == (1 << i))
break;
}
i--;
dramsize += temp;
siu->cs1cfg = ((CFG_SDRAM_BASE + temp) | i);
#endif
sdram->cfg1 = CFG_SDRAM_CFG1;
sdram->cfg2 = CFG_SDRAM_CFG2;
/* Issue PALL */
sdram->ctrl = CFG_SDRAM_CTRL | 2;
/* Issue LEMR */
sdram->mode = CFG_SDRAM_EMOD;
sdram->mode = (CFG_SDRAM_MODE | 0x04000000);
udelay(500);
/* Issue PALL */
sdram->ctrl = (CFG_SDRAM_CTRL | 2);
/* Perform two refresh cycles */
sdram->ctrl = CFG_SDRAM_CTRL | 4;
sdram->ctrl = CFG_SDRAM_CTRL | 4;
sdram->mode = CFG_SDRAM_MODE;
sdram->ctrl = (CFG_SDRAM_CTRL & ~0x80000000) | 0x10000F00;
udelay(100);
return dramsize;
};
int testdram(void)
{
/* TODO: XXX XXX XXX */
printf("DRAM test not implemented!\n");
return (0);
}
#if defined(CONFIG_PCI)
/*
* Initialize PCI devices, report devices found.
*/
static struct pci_controller hose;
extern void pci_mcf547x_8x_init(struct pci_controller *hose);
void pci_init_board(void)
{
pci_mcf547x_8x_init(&hose);
}
#endif /* CONFIG_PCI */
|
