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authorMagnus Damm <damm@igel.co.jp>2008-12-04 22:45:03 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-12-22 18:43:52 +0900
commit3e51762759db9e26c6c3e4e1010d80a50c62ca03 (patch)
tree6cfbcc3d318b0cb36e7a3d106698dbf9d361ec6a /arch/sh
parent04645185d06e8b0c92f6f1f9d76ede45637afc09 (diff)
sh: move the hp6xx pm code
Move the not-so-generic pm code from arch/sh/kernel/pm.c to the platform directory together with the rest of the hp6xx pm code. This is done to let non-hp6xx platforms enable CONFIG_PM. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh')
-rw-r--r--arch/sh/boards/mach-hp6xx/pm.c78
-rw-r--r--arch/sh/include/asm/pm.h17
-rw-r--r--arch/sh/kernel/Makefile_321
-rw-r--r--arch/sh/kernel/Makefile_641
-rw-r--r--arch/sh/kernel/pm.c88
5 files changed, 77 insertions, 108 deletions
diff --git a/arch/sh/boards/mach-hp6xx/pm.c b/arch/sh/boards/mach-hp6xx/pm.c
index 64af1f2eef0..d936c1af762 100644
--- a/arch/sh/boards/mach-hp6xx/pm.c
+++ b/arch/sh/boards/mach-hp6xx/pm.c
@@ -10,15 +10,91 @@
#include <linux/suspend.h>
#include <linux/errno.h>
#include <linux/time.h>
+#include <linux/delay.h>
+#include <linux/gfp.h>
#include <asm/io.h>
#include <asm/hd64461.h>
#include <mach/hp6xx.h>
#include <cpu/dac.h>
-#include <asm/pm.h>
+#include <asm/freq.h>
+#include <asm/watchdog.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
+
+extern u8 wakeup_start;
+extern u8 wakeup_end;
+
+static 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();
+}
+
static int hp6x0_pm_enter(suspend_state_t state)
{
u8 stbcr, stbcr2;
diff --git a/arch/sh/include/asm/pm.h b/arch/sh/include/asm/pm.h
deleted file mode 100644
index 56fdbd6b1c9..00000000000
--- a/arch/sh/include/asm/pm.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright 2006 (c) Andriy Skulysh <askulysh@gmail.com>
- *
- */
-#ifndef __ASM_SH_PM_H
-#define __ASM_SH_PM_H
-
-extern u8 wakeup_start;
-extern u8 wakeup_end;
-
-void pm_enter(void);
-
-#endif
diff --git a/arch/sh/kernel/Makefile_32 b/arch/sh/kernel/Makefile_32
index d9df9e56794..10a34c3ae64 100644
--- a/arch/sh/kernel/Makefile_32
+++ b/arch/sh/kernel/Makefile_32
@@ -25,7 +25,6 @@ obj-$(CONFIG_MODULES) += sh_ksyms_32.o module.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
-obj-$(CONFIG_PM) += pm.o
obj-$(CONFIG_STACKTRACE) += stacktrace.o
obj-$(CONFIG_IO_TRAPPED) += io_trapped.o
obj-$(CONFIG_KPROBES) += kprobes.o
diff --git a/arch/sh/kernel/Makefile_64 b/arch/sh/kernel/Makefile_64
index 4304b2593c2..ae4afc09006 100644
--- a/arch/sh/kernel/Makefile_64
+++ b/arch/sh/kernel/Makefile_64
@@ -15,7 +15,6 @@ obj-$(CONFIG_MODULES) += sh_ksyms_64.o module.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
-obj-$(CONFIG_PM) += pm.o
obj-$(CONFIG_STACKTRACE) += stacktrace.o
obj-$(CONFIG_IO_TRAPPED) += io_trapped.o
obj-$(CONFIG_GENERIC_GPIO) += gpio.o
diff --git a/arch/sh/kernel/pm.c b/arch/sh/kernel/pm.c
deleted file mode 100644
index 10ab62c9aed..00000000000
--- 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();
-}