[PATCH] Add Reset Support for omap3.

Juergen Kilb J.Kilb at phytec.de
Fri Sep 9 08:10:53 EDT 2011


Inspired from reset_cpu in omap4_generic.c.

Signed-off-by: Juergen Kilb <j.kilb at phytec.de>
---
 arch/arm/mach-omap/include/mach/omap3-silicon.h |    3 +++
 arch/arm/mach-omap/omap3_generic.c              |    5 +++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-omap/include/mach/omap3-silicon.h b/arch/arm/mach-omap/include/mach/omap3-silicon.h
index 0e6a45f..67f7747 100644
--- a/arch/arm/mach-omap/include/mach/omap3-silicon.h
+++ b/arch/arm/mach-omap/include/mach/omap3-silicon.h
@@ -132,5 +132,8 @@
 #define OMAP_SDRC_CS0		0x80000000
 #define OMAP_SDRC_CS1		0xA0000000
 
+/* PRM */
+#define PRM_RSTCTRL_RESET       0x04
+
 #endif /* __ASM_ARCH_OMAP3_H */
 
diff --git a/arch/arm/mach-omap/omap3_generic.c b/arch/arm/mach-omap/omap3_generic.c
index 661a971..9627a6b 100644
--- a/arch/arm/mach-omap/omap3_generic.c
+++ b/arch/arm/mach-omap/omap3_generic.c
@@ -59,8 +59,9 @@
  */
 void __noreturn reset_cpu(unsigned long addr)
 {
-	/* FIXME: Enable WDT and cause reset */
-	hang();
+	writel(PRM_RSTCTRL_RESET, PRM_REG(RSTCTRL));
+
+	while (1);
 }
 EXPORT_SYMBOL(reset_cpu);
 
-- 
1.7.0.4




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