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
|
/*
* Copyright 2010-2012 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 <common.h>
#include <spi.h>
#include <asm/io.h>
#include <asm/immap.h>
#include <mmc.h>
#include <fsl_esdhc.h>
DECLARE_GLOBAL_DATA_PTR;
int checkboard(void)
{
/*
* need to to:
* Check serial flash size. if 2mb evb, else 8mb demo
*/
puts("Board: ");
puts("Freescale MCF54418 Tower System\n");
return 0;
};
phys_size_t initdram(int board_type)
{
u32 dramsize;
#if defined(CONFIG_SERIAL_BOOT)
/*
* Serial Boot: The dram is already initialized in start.S
* only require to return DRAM size
*/
dramsize = CONFIG_SYS_SDRAM_SIZE * 0x100000;
#else
sdramc_t *sdram = (sdramc_t *)(MMAP_SDRAM);
ccm_t *ccm = (ccm_t *)MMAP_CCM;
gpio_t *gpio = (gpio_t *) MMAP_GPIO;
pm_t *pm = (pm_t *) MMAP_PM;
u32 i;
dramsize = CONFIG_SYS_SDRAM_SIZE * 0x100000;
for (i = 0x13; i < 0x20; i++) {
if (dramsize == (1 << i))
break;
}
out_8(&pm->pmcr0, 0x2E);
out_8(&gpio->mscr_sdram, 1);
clrbits_be16(&ccm->misccr2, CCM_MISCCR2_FBHALF);
setbits_be16(&ccm->misccr2, CCM_MISCCR2_DDR2CLK);
out_be32(&sdram->rcrcr, 0x40000000);
out_be32(&sdram->padcr, 0x01030203);
out_be32(&sdram->cr00, 0x01010101);
out_be32(&sdram->cr01, 0x00000101);
out_be32(&sdram->cr02, 0x01010100);
out_be32(&sdram->cr03, 0x01010000);
out_be32(&sdram->cr04, 0x00010101);
out_be32(&sdram->cr06, 0x00010100);
out_be32(&sdram->cr07, 0x00000001);
out_be32(&sdram->cr08, 0x01000001);
out_be32(&sdram->cr09, 0x00000100);
out_be32(&sdram->cr10, 0x00010001);
out_be32(&sdram->cr11, 0x00000200);
out_be32(&sdram->cr12, 0x01000002);
out_be32(&sdram->cr13, 0x00000000);
out_be32(&sdram->cr14, 0x00000100);
out_be32(&sdram->cr15, 0x02000100);
out_be32(&sdram->cr16, 0x02000407);
out_be32(&sdram->cr17, 0x02030007);
out_be32(&sdram->cr18, 0x02000100);
out_be32(&sdram->cr19, 0x0A030203);
out_be32(&sdram->cr20, 0x00020708);
out_be32(&sdram->cr21, 0x00050008);
out_be32(&sdram->cr22, 0x04030002);
out_be32(&sdram->cr23, 0x00000004);
out_be32(&sdram->cr24, 0x020A0000);
out_be32(&sdram->cr25, 0x0C00000E);
out_be32(&sdram->cr26, 0x00002004);
out_be32(&sdram->cr28, 0x00100010);
out_be32(&sdram->cr29, 0x00100010);
out_be32(&sdram->cr31, 0x07990000);
out_be32(&sdram->cr40, 0x00000000);
out_be32(&sdram->cr41, 0x00C80064);
out_be32(&sdram->cr42, 0x44520002);
out_be32(&sdram->cr43, 0x00C80023);
out_be32(&sdram->cr45, 0x0000C350);
out_be32(&sdram->cr56, 0x04000000);
out_be32(&sdram->cr57, 0x03000304);
out_be32(&sdram->cr58, 0x40040000);
out_be32(&sdram->cr59, 0xC0004004);
out_be32(&sdram->cr60, 0x0642C000);
out_be32(&sdram->cr61, 0x00000642);
asm("tpf");
out_be32(&sdram->cr09, 0x01000100);
udelay(100);
#endif
return dramsize;
};
int testdram(void)
{
return 0;
}
|
