arm, davinci: add workaround for not resetting DMA bus and VPSS modules

The Buffer Logic of VPSS is Not Reset by System Reset Pin, see
http://www.ti.com/lit/er/sprz316b/sprz316b.pdf chapter Advisory 1.2.1
on page 9. Add workaroundcode proposed in the errata.

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Sandeep Paulraj <s-paulraj@ti.com>
Cc: Tom Rini <tom.rini@gmail.com>
diff --git a/arch/arm/include/asm/arch-davinci/hardware.h b/arch/arm/include/asm/arch-davinci/hardware.h
index 1c71540..b145c6e 100644
--- a/arch/arm/include/asm/arch-davinci/hardware.h
+++ b/arch/arm/include/asm/arch-davinci/hardware.h
@@ -587,6 +587,15 @@
 #include <asm/arch/psc_defs.h>
 #include <asm/arch/syscfg_defs.h>
 #include <asm/arch/timer_defs.h>
+
+#define TMPBUF			0x00017ff8
+#define TMPSTATUS		0x00017ff0
+#define DV_TMPBUF_VAL		0x591b3ed7
+#define FLAG_PORRST		0x00000001
+#define FLAG_WDTRST		0x00000002
+#define FLAG_FLGON		0x00000004
+#define FLAG_FLGOFF		0x00000010
+
 #endif
 
 struct davinci_rtc {