[U-Boot] [PATCH 2/2] mx6: add example DTB for mx6qsabreauto

[Stefano Babic <sbabic@denx.de>]

Hi Fabio,

On 17/03/2014 13:54, Fabio Estevam wrote:
> Hi Stefano,
> 
> On Mon, Mar 17, 2014 at 5:58 AM, Stefano Babic <sbabic@denx.de> wrote:
> 
>> --- a/arch/arm/dts/Makefile
>> +++ b/arch/arm/dts/Makefile
>> @@ -2,6 +2,7 @@ dtb-$(CONFIG_EXYNOS5) += exynos5250-arndale.dtb \
>>         exynos5250-snow.dtb \
>>         exynos5250-smdk5250.dtb \
>>         exynos5420-smdk5420.dtb
>> +dtb-$(CONFIG_MX6) += mx6qsabreauto.dtb
> 
> It would be better to use the name as 'imx6q-sabresd.dtb' to make it
> consistent with the name we currently use in the kernel.

ok, got it.

> 
>>  dtb-$(CONFIG_TEGRA) += tegra20-harmony.dtb \
>>         tegra20-medcom-wide.dtb \
>>         tegra20-paz00.dtb \
>> diff --git a/arch/arm/dts/mx6qsabreauto.dts b/arch/arm/dts/mx6qsabreauto.dts
>> new file mode 100644
>> index 0000000..a3c9c91
>> --- /dev/null
>> +++ b/arch/arm/dts/mx6qsabreauto.dts
>> @@ -0,0 +1,13 @@
>> +/*
>> +    + * Copyright 2012 Freescale Semiconductor, Inc.
>> +    + * Copyright 2011 Linaro Ltd.
>> +    + *
>> +    + * SPDX-License-Identifier:     GPL-2.0+
>> +    + */
>> +
>> +/dts-v1/;
>> +
>> +/ {
>> +       model = "Freescale i.MX6 Quad SABRE Automotive Board";
>> +       compatible = "fsl,imx6q-sabreauto", "fsl,imx6q";
>> +};
> 
> Don't we need imx6qdl-sabresd.dtsi as well?
> 
> imx6q-sabresd.dts only contains the support that is mx6quad specific
> (sata, extra IPU, etc).
> 
> imx6qdl-sabresd.dtsi contains the common part.

Right, but it is to configure the kernel. What I am trying now is to
start adding U-Boot configuration via dtb for i.MX, not kernel
configuration, similar as we can already see for other SOC (Tegra,
zync,..). I can imagine we will have a .dtsi as well, as in kernel, but
at the moment we are starting with DT in U-Boot. Have I relly understood
your point ?

Best regards,
Stefano Babic


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