pm-core.h 1.8 KB

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  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. static inline void s3c_pm_debug_init_uart(void)
  14. {
  15. unsigned long tmp = __raw_readl(S3C2410_CLKCON);
  16. /* re-start uart clocks */
  17. tmp |= S3C2410_CLKCON_UART0;
  18. tmp |= S3C2410_CLKCON_UART1;
  19. tmp |= S3C2410_CLKCON_UART2;
  20. __raw_writel(tmp, S3C2410_CLKCON);
  21. udelay(10);
  22. }
  23. static inline void s3c_pm_arch_prepare_irqs(void)
  24. {
  25. __raw_writel(s3c_irqwake_intmask, S3C2410_INTMSK);
  26. __raw_writel(s3c_irqwake_eintmask, S3C2410_EINTMASK);
  27. /* ack any outstanding external interrupts before we go to sleep */
  28. __raw_writel(__raw_readl(S3C2410_EINTPEND), S3C2410_EINTPEND);
  29. __raw_writel(__raw_readl(S3C2410_INTPND), S3C2410_INTPND);
  30. __raw_writel(__raw_readl(S3C2410_SRCPND), S3C2410_SRCPND);
  31. }
  32. static inline void s3c_pm_arch_stop_clocks(void)
  33. {
  34. __raw_writel(0x00, S3C2410_CLKCON); /* turn off clocks over sleep */
  35. }
  36. static void s3c_pm_show_resume_irqs(int start, unsigned long which,
  37. unsigned long mask);
  38. static inline void s3c_pm_arch_show_resume_irqs(void)
  39. {
  40. S3C_PMDBG("post sleep: IRQs 0x%08x, 0x%08x\n",
  41. __raw_readl(S3C2410_SRCPND),
  42. __raw_readl(S3C2410_EINTPEND));
  43. s3c_pm_show_resume_irqs(IRQ_EINT0, __raw_readl(S3C2410_SRCPND),
  44. s3c_irqwake_intmask);
  45. s3c_pm_show_resume_irqs(IRQ_EINT4-4, __raw_readl(S3C2410_EINTPEND),
  46. s3c_irqwake_eintmask);
  47. }
  48. static inline void s3c_pm_arch_update_uart(void __iomem *regs,
  49. struct pm_uart_save *save)
  50. {
  51. }