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authorAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
committerAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
commitaf1a266670d040d2f4083ff309d732d648afba2a (patch)
tree2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/arch/arm/cpu/arm926ejs/mx25/reset.c
parente02cda008591317b1625707ff8e115a4841aa889 (diff)
Add submodule dependency filesHEADmaster
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/arch/arm/cpu/arm926ejs/mx25/reset.c')
-rw-r--r--roms/u-boot/arch/arm/cpu/arm926ejs/mx25/reset.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/roms/u-boot/arch/arm/cpu/arm926ejs/mx25/reset.c b/roms/u-boot/arch/arm/cpu/arm926ejs/mx25/reset.c
new file mode 100644
index 000000000..7844a99c1
--- /dev/null
+++ b/roms/u-boot/arch/arm/cpu/arm926ejs/mx25/reset.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Alex Zuepke <azu@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
+ *
+ * (C) Copyright 2009
+ * Ilya Yanok, Emcraft Systems Ltd, <yanok@emcraft.com>
+ */
+
+#include <common.h>
+#include <cpu_func.h>
+#include <asm/io.h>
+#include <asm/arch/imx-regs.h>
+
+/*
+ * Reset the cpu by setting up the watchdog timer and let it time out
+ */
+void reset_cpu(void)
+{
+ struct wdog_regs *regs = (struct wdog_regs *)IMX_WDT_BASE;
+ /* Disable watchdog and set Time-Out field to 0 */
+ writew(0, &regs->wcr);
+
+ /* Write Service Sequence */
+ writew(WSR_UNLOCK1, &regs->wsr);
+ writew(WSR_UNLOCK2, &regs->wsr);
+
+ /* Enable watchdog */
+ writew(WCR_WDE, &regs->wcr);
+
+ while (1) ;
+}