[PATCH v2] ARM: dts: at91: sama5d3: add u-boot properties to sama5d3 pit timer

[Manuel Luís Reis]

Great, thanks for your help.

Cheers
Manuel

M. Luís Reis MSc MIET Chartered Engineer



On Wed, 7 Apr 2021 at 10:31, <Eugen.Hristev at microchip.com> wrote:
>
> On 4/7/21 12:16 PM, Manuel Luís Reis wrote:
> > Hi,
> >
> > @Derald: Thanks for trying this out.
> >
> > @Eugen: For what is worth, I can also confirm that I also tried with
> > the latest version v2021.04 and the board boots OK out of the box with
> > this patch only.
> >
>
> Ok, great news ! Thanks.
>
> Until this patch can reach the master of u-boot, if anyone needs a tree,
> you can have my testing branch in u-boot-atmel custodian tree at denx:
>
> https://source.denx.de/u-boot/custodians/u-boot-atmel/-/tree/testing
>
> Eugen
>
> > ------------------------------------------------
> > RomBOOT
> > <debug_uart>
> > U-Boot SPL 2021.04-00372-g90eba245a6-dirty (Apr 07 2021 - 10:05:18 +0100)
> > Trying to boot from MMC1
> > <debug_uart>
> > U-Boot 2021.04-00372-g90eba245a6-dirty (Apr 07 2021 - 10:05:18 +0100)
> > CPU: SAMA5D36
> > Crystal frequency:       12 MHz
> > .....
> > ------------------------------------------------
> >
> > Thanks,
> > Manuel
> >
> > On Wed, 7 Apr 2021 at 07:32, <Eugen.Hristev at microchip.com> wrote:
> >>
> >> On 4/7/21 1:16 AM, Derald Woods wrote:
> >>> On Tue, Apr 6, 2021 at 4:40 AM Manuel Reis <mluis.reis at gmail.com
> >>> <mailto:mluis.reis at gmail.com>> wrote:
> >>>
> >>>      in the early SPL boot stage whenever there is a call to udelay,
> >>>      dm_timer_init fails to find the pit timer whenever it traverses
> >>>      the device tree, if this property is not present
> >>>
> >>>      Signed-off-by: Manuel Reis <mluis.reis at gmail.com
> >>>      <mailto:mluis.reis at gmail.com>>
> >>>      CC: Eugen Hristev <eugen.hristev at microchip.com
> >>>      <mailto:eugen.hristev at microchip.com>>
> >>>      ---
> >>>        arch/arm/dts/sama5d3.dtsi | 1 +
> >>>        1 file changed, 1 insertion(+)
> >>>
> >>>      diff --git a/arch/arm/dts/sama5d3.dtsi b/arch/arm/dts/sama5d3.dtsi
> >>>      index 6ed218eaad..42c30e9f30 100644
> >>>      --- a/arch/arm/dts/sama5d3.dtsi
> >>>      +++ b/arch/arm/dts/sama5d3.dtsi
> >>>      @@ -1320,6 +1320,7 @@
> >>>                                       reg = <0xfffffe30 0xf>;
> >>>                                       interrupts = <3 IRQ_TYPE_LEVEL_HIGH 5>;
> >>>                                       clocks = <&mck>;
> >>>      +                               u-boot,dm-pre-reloc;
> >>>                               };
> >>>
> >>>                               watchdog at fffffe40 {
> >>>      --
> >>>      2.27.0
> >>>
> >>>
> >>> This patch, on top of v2021.04, allows my SAMA5D3 Xplained board to boot
> >>> normally again.
> >>>
> >>> Tested-by: Derald D. Woods <woods.technical at gmail.com
> >>> <mailto:woods.technical at gmail.com>>
> >>>
> >>
> >> Hi Derald,
> >>
> >> Could I ask, you are using the SPL to boot your board ?
> >> Did you have to remove any udelay from the ddr2_init code , or it booted
> >> out of the box by applying this patch only ?
> >>
> >> Thanks,
> >> Eugen
>