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/dm365_lowlevel.h b/arch/arm/include/asm/arch-davinci/dm365_lowlevel.h
index 4986e82..c70930d 100644
--- a/arch/arm/include/asm/arch-davinci/dm365_lowlevel.h
+++ b/arch/arm/include/asm/arch-davinci/dm365_lowlevel.h
@@ -32,7 +32,6 @@
int dm365_pll1_init(unsigned long pllmult, unsigned long prediv);
int dm365_pll2_init(unsigned long pllm, unsigned long prediv);
int dm365_ddr_setup(void);
-void dm365_por_reset(void);
void dm365_psc_init(void);
void dm365_pinmux_ctl(unsigned long offset, unsigned long mask,
unsigned long value);
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 {
diff --git a/arch/arm/include/asm/arch-davinci/timer_defs.h b/arch/arm/include/asm/arch-davinci/timer_defs.h
index 53c961e..49b9e24 100644
--- a/arch/arm/include/asm/arch-davinci/timer_defs.h
+++ b/arch/arm/include/asm/arch-davinci/timer_defs.h
@@ -37,6 +37,9 @@
u_int32_t wdtcr;
};
+#define DV_WDT_ENABLE_SYS_RESET 0x00020000
+#define DV_WDT_TRIGGER_SYS_RESET 0x00020002
+
#ifdef CONFIG_HW_WATCHDOG
void davinci_hw_watchdog_enable(void);
void davinci_hw_watchdog_reset(void);