| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 61 | static inline void s3c_pm_arch_update_uart(void __iomem *regs, |
| 62 | struct pm_uart_save *save) |
| 63 | { |
| 64 | } |
| 65 | |
| 66 | static inline void s3c_pm_restored_gpios(void) { } |
| 67 | static inline void samsung_pm_saved_gpios(void) { } |