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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
// SPDX-License-Identifier: GPL-2.0-or-later
// SPDX-FileCopyrightText: 2013 Sascha Hauer <s.hauer@pengutronix.de>
#include <common.h>
#include <linux/sizes.h>
#include <io.h>
#include <debug_ll.h>
#include <asm/sections.h>
#include <asm/mmu.h>
#include <asm/barebox-arm-head.h>
#include <asm/barebox-arm.h>
#include <mach/imx6-mmdc.h>
#include <mach/generic.h>
static void sdram_init(void)
{
writel(0x0, 0x021b0000);
writel(0xffffffff, 0x020c4068);
writel(0xffffffff, 0x020c406c);
writel(0xffffffff, 0x020c4070);
writel(0xffffffff, 0x020c4074);
writel(0xffffffff, 0x020c4078);
writel(0xffffffff, 0x020c407c);
writel(0xffffffff, 0x020c4080);
writel(0xffffffff, 0x020c4084);
writel(0x000C0000, 0x020e0798);
writel(0x00000000, 0x020e0758);
writel(0x00000030, 0x020e0588);
writel(0x00000030, 0x020e0594);
writel(0x00000030, 0x020e056c);
writel(0x00000030, 0x020e0578);
writel(0x00000030, 0x020e074c);
writel(0x00000030, 0x020e057c);
writel(0x00000000, 0x020e058c);
writel(0x00000030, 0x020e059c);
writel(0x00000030, 0x020e05a0);
writel(0x00000030, 0x020e078c);
writel(0x00020000, 0x020e0750);
writel(0x00000038, 0x020e05a8);
writel(0x00000038, 0x020e05b0);
writel(0x00000038, 0x020e0524);
writel(0x00000038, 0x020e051c);
writel(0x00000038, 0x020e0518);
writel(0x00000038, 0x020e050c);
writel(0x00000038, 0x020e05b8);
writel(0x00000038, 0x020e05c0);
writel(0x00020000, 0x020e0774);
writel(0x00000030, 0x020e0784);
writel(0x00000030, 0x020e0788);
writel(0x00000030, 0x020e0794);
writel(0x00000030, 0x020e079c);
writel(0x00000030, 0x020e07a0);
writel(0x00000030, 0x020e07a4);
writel(0x00000030, 0x020e07a8);
writel(0x00000030, 0x020e0748);
writel(0x00000030, 0x020e05ac);
writel(0x00000030, 0x020e05b4);
writel(0x00000030, 0x020e0528);
writel(0x00000030, 0x020e0520);
writel(0x00000030, 0x020e0514);
writel(0x00000030, 0x020e0510);
writel(0x00000030, 0x020e05bc);
writel(0x00000030, 0x020e05c4);
writel(0xa1390003, 0x021b0800);
writel(0x0059005C, 0x021b080c);
writel(0x00590056, 0x021b0810);
writel(0x002E0049, 0x021b480c);
writel(0x001B0033, 0x021b4810);
writel(0x434F035B, 0x021b083c);
writel(0x033F033F, 0x021b0840);
writel(0x4337033D, 0x021b483c);
writel(0x03210275, 0x021b4840);
writel(0x4C454344, 0x021b0848);
writel(0x463F3E4A, 0x021b4848);
writel(0x46314742, 0x021b0850);
writel(0x4D2A4B39, 0x021b4850);
writel(0x33333333, 0x021b081c);
writel(0x33333333, 0x021b0820);
writel(0x33333333, 0x021b0824);
writel(0x33333333, 0x021b0828);
writel(0x33333333, 0x021b481c);
writel(0x33333333, 0x021b4820);
writel(0x33333333, 0x021b4824);
writel(0x33333333, 0x021b4828);
writel(0x00000800, 0x021b08b8);
writel(0x00000800, 0x021b48b8);
writel(0x00020036, 0x021b0004);
writel(0x09555050, 0x021b0008);
writel(0x8A8F7934, 0x021b000c);
writel(0xDB568E65, 0x021b0010);
writel(0x01FF00DB, 0x021b0014);
writel(0x00011740, 0x021b0018);
writel(0x00008000, 0x021b001c);
writel(0x000026d2, 0x021b002c);
writel(0x008F0E21, 0x021b0030);
writel(0x0000007f, 0x021b0040);
writel(0x114201f0, 0x021b0400);
writel(0x11420000, 0x021b4400);
writel(0x841A0000, 0x021b0000);
writel(0x04108032, 0x021b001c);
writel(0x00028033, 0x021b001c);
writel(0x00048031, 0x021b001c);
writel(0x09308030, 0x021b001c);
writel(0x04008040, 0x021b001c);
writel(0x00005800, 0x021b0020);
writel(0x00011117, 0x021b0818);
writel(0x00011117, 0x021b4818);
writel(0x00025576, 0x021b0004);
writel(0x00011006, 0x021b0404);
writel(0x00000000, 0x021b001c);
/* Enable UART for lowlevel debugging purposes. Can be removed later */
writel(0x4, 0x020e00bc);
writel(0x4, 0x020e00c0);
writel(0x1, 0x020e0928);
writel(0x00000000, 0x021e8080);
writel(0x00004027, 0x021e8084);
writel(0x00000704, 0x021e8088);
writel(0x00000a81, 0x021e8090);
writel(0x0000002b, 0x021e809c);
writel(0x00013880, 0x021e80b0);
writel(0x0000047f, 0x021e80a4);
writel(0x0000c34f, 0x021e80a8);
writel(0x00000001, 0x021e8080);
putc_ll('>');
}
extern char __dtb_imx6q_dmo_edmqmx6_start[];
ENTRY_FUNCTION(start_imx6_realq7, r0, r1, r2)
{
unsigned long sdram = 0x10000000;
void *fdt;
imx6_cpu_lowlevel_init();
arm_setup_stack(0x00940000);
fdt = __dtb_imx6q_dmo_edmqmx6_start + get_runtime_offset();
if (get_pc() < 0x10000000) {
sdram_init();
mmdc_do_write_level_calibration();
mmdc_do_dqs_calibration();
}
barebox_arm_entry(sdram, SZ_2G, fdt);
}
|
