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
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2018 Xilinx, Inc.
*
* Michal Simek <michal.simek@xilinx.com>
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/psu_init_gpl.h>
#define PSU_MASK_POLL_TIME 1100000
int __maybe_unused mask_pollonvalue(unsigned long add, u32 mask, u32 value)
{
int i = 0;
while ((__raw_readl(add) & mask) != value) {
if (i == PSU_MASK_POLL_TIME)
return 0;
i++;
}
return 1;
}
__weak int mask_poll(u32 add, u32 mask)
{
int i = 0;
unsigned long addr = add;
while (!(__raw_readl(addr) & mask)) {
if (i == PSU_MASK_POLL_TIME)
return 0;
i++;
}
return 1;
}
__weak u32 mask_read(u32 add, u32 mask)
{
unsigned long addr = add;
return __raw_readl(addr) & mask;
}
__weak void mask_delay(u32 delay)
{
udelay(delay);
}
__weak void psu_mask_write(unsigned long offset, unsigned long mask,
unsigned long val)
{
unsigned long regval = 0;
regval = readl(offset);
regval &= ~(mask);
regval |= (val & mask);
writel(regval, offset);
}
__weak void prog_reg(unsigned long addr, unsigned long mask,
unsigned long shift, unsigned long value)
{
int rdata = 0;
rdata = readl(addr);
rdata = rdata & (~mask);
rdata = rdata | (value << shift);
writel(rdata, addr);
}
__weak int psu_init(void)
{
/*
* This function is overridden by the one in
* board/xilinx/zynqmp/(platform)/psu_init_gpl.c, if it exists.
*/
return -1;
}
|
