[U-Boot] i.MX6: u-boot,dm-pre-reloc block U-Boot

[Jagan Teki <jagannadh.teki@gmail.com>]

On Tue, May 9, 2017 at 8:54 PM, Lokesh Vutla <lokeshvutla@ti.com> wrote:
>
>
> On Tuesday 09 May 2017 08:37 PM, Jagan Teki wrote:
>> On Tue, May 9, 2017 at 7:49 PM, Lokesh Vutla <lokeshvutla@ti.com> wrote:
>>>
>>>
>>> On Tuesday 09 May 2017 04:35 PM, Jagan Teki wrote:
>>>> Hi All,
>>>>
>>>> I'm trying to add SPL_OF_CONTROL for i.MX6UL, with usdhc1 and gpio1
>>>> nodes are marking as "u-boot,dm-pre-reloc" like
>>>
>>> Did you try "u-boot,dm-spl" instead?
>>
>> Yes, no change.
>
> Hmm..Ideally this should have taken effect :(
>
>>
>>>
>>>
>>>>
>>>> --- a/arch/arm/dts/imx6ul.dtsi
>>>> +++ b/arch/arm/dts/imx6ul.dtsi
>>>> @@ -129,6 +129,7 @@
>>>>         };
>>>>
>>>>         soc {
>>>> +               u-boot,dm-pre-reloc;
>>>>                 #address-cells = <1>;
>>>>                 #size-cells = <1>;
>>>>                 compatible = "simple-bus";
>>>> @@ -180,6 +181,7 @@
>>>>                 };
>>>>
>>>>                 aips1: aips-bus at 02000000 {
>>>> +                       u-boot,dm-pre-reloc;
>>>>                         compatible = "fsl,aips-bus", "simple-bus";
>>>>                         #address-cells = <1>;
>>>>                         #size-cells = <1>;
>>>> @@ -405,6 +407,7 @@
>>>>                         };
>>>>
>>>>                         gpio1: gpio at 0209c000 {
>>>> +                               u-boot,dm-pre-reloc;
>>>>                                 compatible = "fsl,imx6ul-gpio",
>>>> "fsl,imx35-gpio";
>>>>                                 reg = <0x0209c000 0x4000>;
>>>>                                 interrupts = <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>,
>>>> @@ -724,6 +727,7 @@
>>>>                 };
>>>>
>>>>                 aips2: aips-bus at 02100000 {
>>>> +                       u-boot,dm-pre-reloc;
>>>>                         compatible = "fsl,aips-bus", "simple-bus";
>>>>                         #address-cells = <1>;
>>>>                         #size-cells = <1>;
>>>> @@ -781,6 +785,7 @@
>>>>                         };
>>>>
>>>>                         usdhc1: usdhc at 02190000 {
>>>> +                               u-boot,dm-pre-reloc;
>>>>                                 compatible = "fsl,imx6ul-usdhc",
>>>> "fsl,imx6sx-usdhc";
>>>>                                 reg = <0x02190000 0x4000>;
>>>>                                 interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>;
>>>>
>>>> SPL is loading fine from MMC but block the U-Boot that means we can't
>>>> see U-Boot log on console.
>>>
>>> Any chance you can try enabling early debug? Since enabling pre-reloc is
>>> going for a toss, I guess your malloc size is going for a toss. Can you
>>> try increasing initial malloc size?
>>
>> Yes, I've increased malloc CONFIG_SYS_MALLOC_LEN from 16M to upto 128M
>> but no change.
>
> No, try CONFIG_SYS_MALLOC_F_LEN=0x2000.
>
> Is it possible to check where exactly is it hanged?

Yes, it hangs while relocating dram[1] and I also observed the main
bus nodes are are 'not found' which I haven't see before and these are
marked 'u-boot,dm-spl'

uclass_find_device_by_seq: 0 -1
uclass_find_device_by_seq: 0 0
   - -1 -1 'soc'
   - -1 -1 'aips-bus at 02000000'
   - -1 -1 'aips-bus at 02100000'
   - not found

[1] https://paste.ubuntu.com/24543685/

thanks!
-- 
Jagan Teki
Free Software Engineer | www.openedev.com
U-Boot, Linux | Upstream Maintainer
Hyderabad, India.