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
|
/*
* Copyright (C) 2016 Imagination Technologies
*
* SPDX-License-Identifier: GPL-2.0
*/
#include <config.h>
#include <asm/addrspace.h>
#include <asm/asm.h>
#include <asm/mipsregs.h>
#include <asm/regdef.h>
#include "boston-regs.h"
.data
msg_ddr_cal: .ascii "DDR Cal "
msg_ddr_ok: .ascii "DDR OK "
.text
LEAF(lowlevel_init)
move s0, ra
PTR_LA a0, msg_ddr_cal
bal lowlevel_display
PTR_LI t0, BOSTON_PLAT_DDR3STAT
1: lw t1, 0(t0)
andi t1, t1, BOSTON_PLAT_DDR3STAT_CALIB
beqz t1, 1b
PTR_LA a0, msg_ddr_ok
bal lowlevel_display
jr s0
END(lowlevel_init)
LEAF(lowlevel_display)
.set push
.set noat
PTR_LI AT, BOSTON_LCD_BASE
#ifdef CONFIG_64BIT
ld k1, 0(a0)
sd k1, 0(AT)
#else
lw k1, 0(a0)
sw k1, 0(AT)
lw k1, 4(a0)
sw k1, 4(AT)
#endif
.set pop
jr ra
END(lowlevel_display)
|
