diff options
Diffstat (limited to 'arch/sh/kernel/pm.c')
-rw-r--r-- | arch/sh/kernel/pm.c | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/arch/sh/kernel/pm.c b/arch/sh/kernel/pm.c deleted file mode 100644 index 10ab62c..0000000 --- a/arch/sh/kernel/pm.c +++ /dev/null @@ -1,88 +0,0 @@ -/* - * Generic Power Management Routine - * - * Copyright (c) 2006 Andriy Skulysh <askulsyh@gmail.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License. - */ -#include <linux/suspend.h> -#include <linux/delay.h> -#include <linux/gfp.h> -#include <asm/freq.h> -#include <asm/io.h> -#include <asm/watchdog.h> -#include <asm/pm.h> - -#define INTR_OFFSET 0x600 - -#define STBCR 0xffffff82 -#define STBCR2 0xffffff88 - -#define STBCR_STBY 0x80 -#define STBCR_MSTP2 0x04 - -#define MCR 0xffffff68 -#define RTCNT 0xffffff70 - -#define MCR_RMODE 2 -#define MCR_RFSH 4 - -void pm_enter(void) -{ - u8 stbcr, csr; - u16 frqcr, mcr; - u32 vbr_new, vbr_old; - - set_bl_bit(); - - /* set wdt */ - csr = sh_wdt_read_csr(); - csr &= ~WTCSR_TME; - csr |= WTCSR_CKS_4096; - sh_wdt_write_csr(csr); - csr = sh_wdt_read_csr(); - sh_wdt_write_cnt(0); - - /* disable PLL1 */ - frqcr = ctrl_inw(FRQCR); - frqcr &= ~(FRQCR_PLLEN | FRQCR_PSTBY); - ctrl_outw(frqcr, FRQCR); - - /* enable standby */ - stbcr = ctrl_inb(STBCR); - ctrl_outb(stbcr | STBCR_STBY | STBCR_MSTP2, STBCR); - - /* set self-refresh */ - mcr = ctrl_inw(MCR); - ctrl_outw(mcr & ~MCR_RFSH, MCR); - - /* set interrupt handler */ - asm volatile("stc vbr, %0" : "=r" (vbr_old)); - vbr_new = get_zeroed_page(GFP_ATOMIC); - udelay(50); - memcpy((void*)(vbr_new + INTR_OFFSET), - &wakeup_start, &wakeup_end - &wakeup_start); - asm volatile("ldc %0, vbr" : : "r" (vbr_new)); - - ctrl_outw(0, RTCNT); - ctrl_outw(mcr | MCR_RFSH | MCR_RMODE, MCR); - - cpu_sleep(); - - asm volatile("ldc %0, vbr" : : "r" (vbr_old)); - - free_page(vbr_new); - - /* enable PLL1 */ - frqcr = ctrl_inw(FRQCR); - frqcr |= FRQCR_PSTBY; - ctrl_outw(frqcr, FRQCR); - udelay(50); - frqcr |= FRQCR_PLLEN; - ctrl_outw(frqcr, FRQCR); - - ctrl_outb(stbcr, STBCR); - - clear_bl_bit(); -} |