2 * hp6x0 Power Management Routines
4 * Copyright (c) 2006 Andriy Skulysh <askulsyh@gmail.com>
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License.
9 #include <linux/config.h>
10 #include <linux/init.h>
11 #include <linux/suspend.h>
12 #include <linux/errno.h>
13 #include <linux/time.h>
15 #include <asm/hd64461.h>
16 #include <asm/hp6xx/hp6xx.h>
17 #include <asm/cpu/dac.h>
20 #define STBCR 0xffffff82
21 #define STBCR2 0xffffff88
23 static int hp6x0_pm_enter(suspend_state_t state)
26 #ifdef CONFIG_HD64461_ENABLER
31 if (state != PM_SUSPEND_MEM)
34 #ifdef CONFIG_HD64461_ENABLER
35 outb(0, HD64461_PCC1CSCIER);
37 scr = inb(HD64461_PCC1SCR);
38 scr |= HD64461_PCCSCR_VCC1;
39 outb(scr, HD64461_PCC1SCR);
41 hd64461_stbcr = inw(HD64461_STBCR);
42 hd64461_stbcr |= HD64461_STBCR_SPC1ST;
43 outw(hd64461_stbcr, HD64461_STBCR);
46 ctrl_outb(0x1f, DACR);
48 stbcr = ctrl_inb(STBCR);
49 ctrl_outb(0x01, STBCR);
51 stbcr2 = ctrl_inb(STBCR2);
52 ctrl_outb(0x7f , STBCR2);
54 outw(0xf07f, HD64461_SCPUCR);
58 outw(0, HD64461_SCPUCR);
59 ctrl_outb(stbcr, STBCR);
60 ctrl_outb(stbcr2, STBCR2);
62 #ifdef CONFIG_HD64461_ENABLER
63 hd64461_stbcr = inw(HD64461_STBCR);
64 hd64461_stbcr &= ~HD64461_STBCR_SPC1ST;
65 outw(hd64461_stbcr, HD64461_STBCR);
67 outb(0x4c, HD64461_PCC1CSCIER);
68 outb(0x00, HD64461_PCC1CSCR);
75 * Set to PM_DISK_FIRMWARE so we can quickly veto suspend-to-disk.
77 static struct pm_ops hp6x0_pm_ops = {
78 .pm_disk_mode = PM_DISK_FIRMWARE,
79 .enter = hp6x0_pm_enter,
82 static int __init hp6x0_pm_init(void)
84 pm_set_ops(&hp6x0_pm_ops);
88 late_initcall(hp6x0_pm_init);