* [PATCH 1/2] arm: am33xx: add reset duration control register address definition
@ 2016-12-09 14:17 yegorslists
2016-12-09 14:17 ` [PATCH 2/2] arm: baltos: prolong global reset yegorslists
2017-01-09 12:55 ` [PATCH 1/2] arm: am33xx: add reset duration control register address definition Sascha Hauer
0 siblings, 2 replies; 3+ messages in thread
From: yegorslists @ 2016-12-09 14:17 UTC (permalink / raw)
To: barebox
From: Yegor Yefremov <yegorslists@googlemail.com>
PRM_RSTTIME register provides settings for global and power domain
reset durations.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
---
arch/arm/mach-omap/include/mach/am33xx-silicon.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/mach-omap/include/mach/am33xx-silicon.h b/arch/arm/mach-omap/include/mach/am33xx-silicon.h
index e17e609..10595d5 100644
--- a/arch/arm/mach-omap/include/mach/am33xx-silicon.h
+++ b/arch/arm/mach-omap/include/mach/am33xx-silicon.h
@@ -71,6 +71,7 @@
#define AM33XX_PRM_RSTCTRL (AM33XX_PRM_BASE + 0x0f00)
#define AM33XX_PRM_RSTCTRL_RESET 0x1
+#define AM33XX_PRM_RSTTIME (AM33XX_PRM_BASE + 0x0f04)
#define AM33XX_PRM_RSTST (AM33XX_PRM_BASE + 0x0f08)
/* CTRL */
--
2.1.4
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^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH 2/2] arm: baltos: prolong global reset
2016-12-09 14:17 [PATCH 1/2] arm: am33xx: add reset duration control register address definition yegorslists
@ 2016-12-09 14:17 ` yegorslists
2017-01-09 12:55 ` [PATCH 1/2] arm: am33xx: add reset duration control register address definition Sascha Hauer
1 sibling, 0 replies; 3+ messages in thread
From: yegorslists @ 2016-12-09 14:17 UTC (permalink / raw)
To: barebox
From: Yegor Yefremov <yegorslists@googlemail.com>
Prolong global reset to the max. value of 0xff. Such a long reset
is required for some peripherals found on Baltos devices.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
---
arch/arm/boards/vscom-baltos/lowlevel.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm/boards/vscom-baltos/lowlevel.c b/arch/arm/boards/vscom-baltos/lowlevel.c
index 87f2a74..9f829b9 100644
--- a/arch/arm/boards/vscom-baltos/lowlevel.c
+++ b/arch/arm/boards/vscom-baltos/lowlevel.c
@@ -126,6 +126,12 @@ ENTRY_FUNCTION(start_am33xx_baltos_sdram, r0, r1, r2)
{
void *fdt;
+ /*
+ * Prolong global reset duration to the max. value (0xff)
+ * and leave power domain reset to its default value (0x10).
+ */
+ __raw_writel(0x000010ff, AM33XX_PRM_RSTTIME);
+
fdt = __dtb_am335x_baltos_minimal_start;
fdt -= get_runtime_offset();
--
2.1.4
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH 1/2] arm: am33xx: add reset duration control register address definition
2016-12-09 14:17 [PATCH 1/2] arm: am33xx: add reset duration control register address definition yegorslists
2016-12-09 14:17 ` [PATCH 2/2] arm: baltos: prolong global reset yegorslists
@ 2017-01-09 12:55 ` Sascha Hauer
1 sibling, 0 replies; 3+ messages in thread
From: Sascha Hauer @ 2017-01-09 12:55 UTC (permalink / raw)
To: yegorslists; +Cc: barebox
On Fri, Dec 09, 2016 at 03:17:14PM +0100, yegorslists@googlemail.com wrote:
> From: Yegor Yefremov <yegorslists@googlemail.com>
>
> PRM_RSTTIME register provides settings for global and power domain
> reset durations.
>
> Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
> ---
Applied, thanks
Sascha
> arch/arm/mach-omap/include/mach/am33xx-silicon.h | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/mach-omap/include/mach/am33xx-silicon.h b/arch/arm/mach-omap/include/mach/am33xx-silicon.h
> index e17e609..10595d5 100644
> --- a/arch/arm/mach-omap/include/mach/am33xx-silicon.h
> +++ b/arch/arm/mach-omap/include/mach/am33xx-silicon.h
> @@ -71,6 +71,7 @@
>
> #define AM33XX_PRM_RSTCTRL (AM33XX_PRM_BASE + 0x0f00)
> #define AM33XX_PRM_RSTCTRL_RESET 0x1
> +#define AM33XX_PRM_RSTTIME (AM33XX_PRM_BASE + 0x0f04)
> #define AM33XX_PRM_RSTST (AM33XX_PRM_BASE + 0x0f08)
>
> /* CTRL */
> --
> 2.1.4
>
>
> _______________________________________________
> barebox mailing list
> barebox@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox
>
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