blob: 3d43fba2542f2a477bb1e908bc2baaa45658dbbc [file] [log] [blame]
Paul Walmsley530e5442011-02-25 15:39:28 -07001/*
2 * OMAP2/3 interface clock control
3 *
4 * Copyright (C) 2011 Nokia Corporation
5 * Paul Walmsley
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11#undef DEBUG
12
13#include <linux/kernel.h>
14#include <linux/clk.h>
15#include <linux/io.h>
16
17#include <plat/clock.h>
18#include <plat/prcm.h>
19
20#include "clock.h"
21#include "clock2xxx.h"
22#include "cm2xxx_3xxx.h"
23#include "cm-regbits-24xx.h"
24
25/* Private functions */
26
27/* XXX */
28void omap2_clkt_iclk_allow_idle(struct clk *clk)
29{
30 u32 v, r;
31
32 r = ((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN));
33
34 v = __raw_readl((__force void __iomem *)r);
35 v |= (1 << clk->enable_bit);
36 __raw_writel(v, (__force void __iomem *)r);
37}
38
39/* XXX */
40void omap2_clkt_iclk_deny_idle(struct clk *clk)
41{
42 u32 v, r;
43
44 r = ((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN));
45
46 v = __raw_readl((__force void __iomem *)r);
47 v &= ~(1 << clk->enable_bit);
48 __raw_writel(v, (__force void __iomem *)r);
49}
50
51/* Public data */
52
53const struct clkops clkops_omap2_iclk_dflt_wait = {
54 .enable = omap2_dflt_clk_enable,
55 .disable = omap2_dflt_clk_disable,
56 .find_companion = omap2_clk_dflt_find_companion,
57 .find_idlest = omap2_clk_dflt_find_idlest,
58 .allow_idle = omap2_clkt_iclk_allow_idle,
59 .deny_idle = omap2_clkt_iclk_deny_idle,
60};
61
62const struct clkops clkops_omap2_iclk_dflt = {
63 .enable = omap2_dflt_clk_enable,
64 .disable = omap2_dflt_clk_disable,
65 .allow_idle = omap2_clkt_iclk_allow_idle,
66 .deny_idle = omap2_clkt_iclk_deny_idle,
67};
68
69const struct clkops clkops_omap2_iclk_idle_only = {
70 .allow_idle = omap2_clkt_iclk_allow_idle,
71 .deny_idle = omap2_clkt_iclk_deny_idle,
72};
73
Paul Walmsleye892b252011-02-25 15:39:29 -070074const struct clkops clkops_omap2_mdmclk_dflt_wait = {
75 .enable = omap2_dflt_clk_enable,
76 .disable = omap2_dflt_clk_disable,
77 .find_companion = omap2_clk_dflt_find_companion,
78 .find_idlest = omap2_clk_dflt_find_idlest,
79 .allow_idle = omap2_clkt_iclk_allow_idle,
80 .deny_idle = omap2_clkt_iclk_deny_idle,
81};
82