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>

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;

arch/sh/include/asm/pm.h

@@ -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

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

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

arch/sh/kernel/pm.c

@@ -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();
-}