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-rw-r--r--arch/arm/mach-imx/reset_source.c72
1 files changed, 0 insertions, 72 deletions
diff --git a/arch/arm/mach-imx/reset_source.c b/arch/arm/mach-imx/reset_source.c
deleted file mode 100644
index e7b2a906c5..0000000000
--- a/arch/arm/mach-imx/reset_source.c
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * (C) Copyright 2012 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.
- */
-
-#include <common.h>
-#include <init.h>
-#include <io.h>
-#include <reset_source.h>
-#include <mach/imx-regs.h>
-
-#ifdef CONFIG_ARCH_IMX1
-# define IMX_RESET_SRC_WDOG (1 << 1)
-# define IMX_RESET_SRC_HRDRESET (1 << 0)
-/* let the compiler sort out useless code on this arch */
-# define IMX_RESET_SRC_WARMSTART 0
-# define IMX_RESET_SRC_COLDSTART 0
-#else
- /* WRSR checked for i.MX25, i.MX27, i.MX31, i.MX35 and i.MX51 */
-# define WDOG_WRSR 0x04
- /* valid for i.MX25, i.MX27, i.MX31, i.MX35, i.MX51 */
-# define IMX_RESET_SRC_WARMSTART (1 << 0)
- /* valid for i.MX25, i.MX27, i.MX31, i.MX35, i.MX51 */
-# define IMX_RESET_SRC_WDOG (1 << 1)
- /* valid for i.MX27, i.MX31, always '0' on i.MX25, i.MX35, i.MX51 */
-# define IMX_RESET_SRC_HRDRESET (1 << 3)
- /* valid for i.MX27, i.MX31, always '0' on i.MX25, i.MX35, i.MX51 */
-# define IMX_RESET_SRC_COLDSTART (1 << 4)
-#endif
-
-static unsigned read_detection_register(void)
-{
-#ifdef CONFIG_ARCH_IMX1
- return readl(IMX_SYSCTRL_BASE);
-#else
- return readw(IMX_WDT_BASE + WDOG_WRSR);
-#endif
-}
-
-static int imx_detect_reset_source(void)
-{
- unsigned reg = read_detection_register();
-
- if (reg & IMX_RESET_SRC_COLDSTART) {
- set_reset_source(RESET_POR);
- return 0;
- }
-
- if (reg & (IMX_RESET_SRC_HRDRESET | IMX_RESET_SRC_WARMSTART)) {
- set_reset_source(RESET_RST);
- return 0;
- }
-
- if (reg & IMX_RESET_SRC_WDOG) {
- set_reset_source(RESET_WDG);
- return 0;
- }
-
- /* else keep the default 'unknown' state */
- return 0;
-}
-
-device_initcall(imx_detect_reset_source);