Adds MX27 machine support to the Linux kernel.

http://www.bitshrine.org/gpp/linux-2.6.19.2-mx-mach_mx27-2.patch

1 files changed, 69 insertions, 0 deletions

diff --git a/arch/arm/mach-mx27/system.c b/arch/arm/mach-mx27/system.c
new file mode 100644
index 000000000000..b5006aded94e
--- /dev/null
+++ b/arch/arm/mach-mx27/system.c
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 1999 ARM Limited
+ * Copyright (C) 2000 Deep Blue Solutions Ltd
+ * Copyright 2006 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * 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 <asm/io.h>
+#include <asm/arch/hardware.h>
+#include <asm/proc-fns.h>
+#include <asm/system.h>
+#include <asm/arch/clock.h>
+
+/*!
+ * @defgroup MSL Machine Specific Layer (MSL)
+ */
+
+/*!
+ * @defgroup System System-wide Misc Files for MSL
+ * @ingroup MSL
+ */
+
+/*!
+ * @file system.c
+ * @brief This file contains idle and reset functions.
+ *
+ * @ingroup System
+ */
+
+/*!
+ * This function puts 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 WDT_WCR_WDE             0x0004
+
+/*
+ * This function resets the system. It is called by machine_restart().
+ *
+ * @param  mode         indicates different kinds of resets
+ */
+void arch_reset(char mode)
+{
+	volatile u16 v;
+	mxc_clks_enable(WDOG_CLK);
+	v = __raw_readw(IO_ADDRESS(WDOG_BASE_ADDR));
+	__raw_writew(v | WDT_WCR_WDE, IO_ADDRESS(WDOG_BASE_ADDR));
+}