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

[Eugen.Hristev at microchip.com]

On 4/7/21 12:39 PM, Manuel Luís Reis wrote:
> 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>>

Applied to u-boot-atmel/master, thanks, and,

Reviewed-by: Eugen Hristev <eugen.hristev at microchip.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
>>