blob: f01ec9a8598eae16a8df9d43eb7e05ea2b5a1744 (
plain)
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
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
*
* Derived from linux/arch/mips/bcm63xx/clk.c:
* Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
*/
#include <common.h>
#include <clk-uclass.h>
#include <dm.h>
#include <errno.h>
#include <asm/io.h>
#define MAX_CLKS 32
struct bcm6345_clk_priv {
void __iomem *regs;
};
static int bcm6345_clk_enable(struct clk *clk)
{
struct bcm6345_clk_priv *priv = dev_get_priv(clk->dev);
if (clk->id >= MAX_CLKS)
return -EINVAL;
setbits_be32(priv->regs, BIT(clk->id));
return 0;
}
static int bcm6345_clk_disable(struct clk *clk)
{
struct bcm6345_clk_priv *priv = dev_get_priv(clk->dev);
if (clk->id >= MAX_CLKS)
return -EINVAL;
clrbits_be32(priv->regs, BIT(clk->id));
return 0;
}
static struct clk_ops bcm6345_clk_ops = {
.disable = bcm6345_clk_disable,
.enable = bcm6345_clk_enable,
};
static const struct udevice_id bcm6345_clk_ids[] = {
{ .compatible = "brcm,bcm6345-clk" },
{ /* sentinel */ }
};
static int bcm63xx_clk_probe(struct udevice *dev)
{
struct bcm6345_clk_priv *priv = dev_get_priv(dev);
priv->regs = dev_remap_addr(dev);
if (!priv->regs)
return -EINVAL;
return 0;
}
U_BOOT_DRIVER(clk_bcm6345) = {
.name = "clk_bcm6345",
.id = UCLASS_CLK,
.of_match = bcm6345_clk_ids,
.ops = &bcm6345_clk_ops,
.probe = bcm63xx_clk_probe,
.priv_auto_alloc_size = sizeof(struct bcm6345_clk_priv),
};
|
