1 /* linux/arch/arm/mach-s3c2410/include/pm-core.h
2 *
3 * Copyright 2008 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
5 * http://armlinux.simtec.co.uk/
6 *
7 * S3C24xx - PM core support for arch/arm/plat-s3c/pm.c
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
s3c_pm_debug_init_uart(void)14 static inline void s3c_pm_debug_init_uart(void)
15 {
16 unsigned long tmp = __raw_readl(S3C2410_CLKCON);
17
18 /* re-start uart clocks */
19 tmp |= S3C2410_CLKCON_UART0;
20 tmp |= S3C2410_CLKCON_UART1;
21 tmp |= S3C2410_CLKCON_UART2;
22
23 __raw_writel(tmp, S3C2410_CLKCON);
24 udelay(10);
25 }
26
s3c_pm_arch_prepare_irqs(void)27 static inline void s3c_pm_arch_prepare_irqs(void)
28 {
29 __raw_writel(s3c_irqwake_intmask, S3C2410_INTMSK);
30 __raw_writel(s3c_irqwake_eintmask, S3C2410_EINTMASK);
31
32 /* ack any outstanding external interrupts before we go to sleep */
33
34 __raw_writel(__raw_readl(S3C2410_EINTPEND), S3C2410_EINTPEND);
35 __raw_writel(__raw_readl(S3C2410_INTPND), S3C2410_INTPND);
36 __raw_writel(__raw_readl(S3C2410_SRCPND), S3C2410_SRCPND);
37
38 }
39
s3c_pm_arch_stop_clocks(void)40 static inline void s3c_pm_arch_stop_clocks(void)
41 {
42 __raw_writel(0x00, S3C2410_CLKCON); /* turn off clocks over sleep */
43 }
44
45 static void s3c_pm_show_resume_irqs(int start, unsigned long which,
46 unsigned long mask);
47
s3c_pm_arch_show_resume_irqs(void)48 static inline void s3c_pm_arch_show_resume_irqs(void)
49 {
50 S3C_PMDBG("post sleep: IRQs 0x%08x, 0x%08x\n",
51 __raw_readl(S3C2410_SRCPND),
52 __raw_readl(S3C2410_EINTPEND));
53
54 s3c_pm_show_resume_irqs(IRQ_EINT0, __raw_readl(S3C2410_SRCPND),
55 s3c_irqwake_intmask);
56
57 s3c_pm_show_resume_irqs(IRQ_EINT4-4, __raw_readl(S3C2410_EINTPEND),
58 s3c_irqwake_eintmask);
59 }
60
s3c_pm_arch_update_uart(void __iomem * regs,struct pm_uart_save * save)61 static inline void s3c_pm_arch_update_uart(void __iomem *regs,
62 struct pm_uart_save *save)
63 {
64 }
65
s3c_pm_restored_gpios(void)66 static inline void s3c_pm_restored_gpios(void) { }
samsung_pm_saved_gpios(void)67 static inline void samsung_pm_saved_gpios(void) { }
68