mxc: add arch_reset() function

This patch adds arch_reset() function for all mxc platforms.

It also removes (unsused) arch/arm/mach-mx2/system.c file.

This patch has been tested on i.MX1/27/31/35

Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

2 files changed, 1 insertions, 64 deletions

diff --git a/arch/arm/mach-mx2/Makefile b/arch/arm/mach-mx2/Makefile
index 6e1a2bffc812..950649a91540 100644
--- a/arch/arm/mach-mx2/Makefile
+++ b/arch/arm/mach-mx2/Makefile
@@ -4,7 +4,7 @@
 
 # Object file lists.
 
-obj-y   :=  system.o generic.o devices.o serial.o
+obj-y   :=  generic.o devices.o serial.o
 
 obj-$(CONFIG_MACH_MX21) += clock_imx21.o
 
diff --git a/arch/arm/mach-mx2/system.c b/arch/arm/mach-mx2/system.c
deleted file mode 100644
index 92c79d4bd162..000000000000
--- a/arch/arm/mach-mx2/system.c
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * Copyright (C) 1999 ARM Limited
- * Copyright (C) 2000 Deep Blue Solutions Ltd
- * Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
- * Copyright 2008 Juergen Beisert, kernel@pengutronix.de
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include <linux/kernel.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-
-#include <mach/hardware.h>
-#include <asm/proc-fns.h>
-#include <asm/system.h>
-
-/*
- * Put the CPU into idle mode. It is called by default_idle()
- * in process.c file.
- */
-void arch_idle(void)
-{
-        /*
-         * This should do all the clock switching
-         * and wait for interrupt tricks.
-         */
-        cpu_do_idle();
-}
-
-#define WDOG_WCR_REG                    IO_ADDRESS(WDOG_BASE_ADDR)
-#define WDOG_WCR_SRS                    (1 << 4)
-
-/*
- * Reset the system. It is called by machine_restart().
- */
-void arch_reset(char mode, const char *cmd)
-{
-        struct clk *clk;
-
-        clk = clk_get(NULL, "wdog_clk");
-        if (!clk) {
-                printk(KERN_ERR"Cannot activate the watchdog. Giving up\n");
-                return;
-        }
-
-        clk_enable(clk);
-
-        /* Assert SRS signal */
-        __raw_writew(__raw_readw(WDOG_WCR_REG) & ~WDOG_WCR_SRS, WDOG_WCR_REG);
-}