From 3f84108b9946fa0d3bd7e9d7c17dda2da6c8216c Mon Sep 17 00:00:00 2001 From: Heiko Schocher Date: Sat, 14 Jan 2012 21:42:46 +0000 Subject: 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 Cc: Sandeep Paulraj Cc: Tom Rini --- arch/arm/include/asm/arch-davinci/dm365_lowlevel.h | 1 - arch/arm/include/asm/arch-davinci/hardware.h | 9 +++++++++ arch/arm/include/asm/arch-davinci/timer_defs.h | 3 +++ 3 files changed, 12 insertions(+), 1 deletion(-) (limited to 'arch/arm/include/asm') 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 @@ void dm365_waitloop(unsigned long loopcnt); 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 @@ static inline int get_async3_src(void) #include #include #include + +#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 @@ struct davinci_timer { 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); -- cgit v1.1