LXR linux/arch/arm/mach-s3c24xx/include/mach/pm-core.h

   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
  14static 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
  27static 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
  40static inline void s3c_pm_arch_stop_clocks(void)
  41{
  42        __raw_writel(0x00, S3C2410_CLKCON);  /* turn off clocks over sleep */
  43}
  44
  45static void s3c_pm_show_resume_irqs(int start, unsigned long which,
  46                                    unsigned long mask);
  47
  48static 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
  61static inline void s3c_pm_arch_update_uart(void __iomem *regs,
  62                                           struct pm_uart_save *save)
  63{
  64}
  65
  66static inline void s3c_pm_restored_gpios(void) { }
  67static inline void samsung_pm_saved_gpios(void) { }
  68