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-rw-r--r--arch/arm/mach-mx5/pm-imx5.c83
1 files changed, 0 insertions, 83 deletions
diff --git a/arch/arm/mach-mx5/pm-imx5.c b/arch/arm/mach-mx5/pm-imx5.c
deleted file mode 100644
index 98052fc852c7..000000000000
--- a/arch/arm/mach-mx5/pm-imx5.c
+++ /dev/null
@@ -1,83 +0,0 @@
1/*
2 * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
3 *
4 * The code contained herein is licensed under the GNU General Public
5 * License. You may obtain a copy of the GNU General Public License
6 * Version 2 or later at the following locations:
7 *
8 * http://www.opensource.org/licenses/gpl-license.html
9 * http://www.gnu.org/copyleft/gpl.html
10 */
11#include <linux/suspend.h>
12#include <linux/clk.h>
13#include <linux/io.h>
14#include <linux/err.h>
15#include <asm/cacheflush.h>
16#include <asm/tlbflush.h>
17#include <mach/common.h>
18#include <mach/hardware.h>
19#include "crm_regs.h"
20
21static struct clk *gpc_dvfs_clk;
22
23static int mx5_suspend_prepare(void)
24{
25 return clk_enable(gpc_dvfs_clk);
26}
27
28static int mx5_suspend_enter(suspend_state_t state)
29{
30 switch (state) {
31 case PM_SUSPEND_MEM:
32 mx5_cpu_lp_set(STOP_POWER_OFF);
33 break;
34 case PM_SUSPEND_STANDBY:
35 mx5_cpu_lp_set(WAIT_UNCLOCKED_POWER_OFF);
36 break;
37 default:
38 return -EINVAL;
39 }
40
41 if (state == PM_SUSPEND_MEM) {
42 local_flush_tlb_all();
43 flush_cache_all();
44
45 /*clear the EMPGC0/1 bits */
46 __raw_writel(0, MXC_SRPG_EMPGC0_SRPGCR);
47 __raw_writel(0, MXC_SRPG_EMPGC1_SRPGCR);
48 }
49 cpu_do_idle();
50 return 0;
51}
52
53static void mx5_suspend_finish(void)
54{
55 clk_disable(gpc_dvfs_clk);
56}
57
58static int mx5_pm_valid(suspend_state_t state)
59{
60 return (state > PM_SUSPEND_ON && state <= PM_SUSPEND_MAX);
61}
62
63static const struct platform_suspend_ops mx5_suspend_ops = {
64 .valid = mx5_pm_valid,
65 .prepare = mx5_suspend_prepare,
66 .enter = mx5_suspend_enter,
67 .finish = mx5_suspend_finish,
68};
69
70static int __init mx5_pm_init(void)
71{
72 if (gpc_dvfs_clk == NULL)
73 gpc_dvfs_clk = clk_get(NULL, "gpc_dvfs");
74
75 if (!IS_ERR(gpc_dvfs_clk)) {
76 if (cpu_is_mx51())
77 suspend_set_ops(&mx5_suspend_ops);
78 } else
79 return -EPERM;
80
81 return 0;
82}
83device_initcall(mx5_pm_init);