[RFC] mx6cuboxi: Enable OF_CONTROL and DM in SPL

[Baruch Siach]

Hi Walter,

Thanks for the patch.

One comment below.

On Wed, Jan 29, 2020 at 10:58:07AM -0300, Walter Lozano wrote:
> Make an additional step to add full DM support to mx6cuboxi, including its support for SPL
> 
> With this new configuration SPL image is 50 KB, higher than the
> 38 KB from the previous version, but it still under the 68 KB limit.
> 
> Signed-off-by: Walter Lozano <walter.lozano at collabora.com>
> ---
>  arch/arm/dts/imx6qdl-hummingboard2-emmc-som-v15-u-boot.dtsi | 4 ++++
>  configs/mx6cuboxi_defconfig                                 | 3 +++
>  2 files changed, 7 insertions(+)
> 
> diff --git a/arch/arm/dts/imx6qdl-hummingboard2-emmc-som-v15-u-boot.dtsi b/arch/arm/dts/imx6qdl-hummingboard2-emmc-som-v15-u-boot.dtsi
> index d302b2e275..b1364a0bbf 100644
> --- a/arch/arm/dts/imx6qdl-hummingboard2-emmc-som-v15-u-boot.dtsi
> +++ b/arch/arm/dts/imx6qdl-hummingboard2-emmc-som-v15-u-boot.dtsi
> @@ -34,3 +34,7 @@
>  &usdhc1 {
>  	status = "disabled";
>  };
> +
> +&usdhc2 {
> +	u-boot,dm-pre-reloc;
> +};

Have you tested boot from eMMC?

You would most likely need to add &usdhc3 to SPL DT for that.

baruch

> diff --git a/configs/mx6cuboxi_defconfig b/configs/mx6cuboxi_defconfig
> index 23ce485f43..ae8d920260 100644
> --- a/configs/mx6cuboxi_defconfig
> +++ b/configs/mx6cuboxi_defconfig
> @@ -24,6 +24,7 @@ CONFIG_USE_PREBOOT=y
>  CONFIG_PREBOOT="if hdmidet; then usb start; setenv stdin  serial,usbkbd; setenv stdout serial,vga; setenv stderr serial,vga; else setenv stdin  serial; setenv stdout serial; setenv stderr serial; fi;"
>  CONFIG_BOUNCE_BUFFER=y
>  CONFIG_BOARD_EARLY_INIT_F=y
> +CONFIG_SPL_SEPARATE_BSS=y
>  CONFIG_SPL_FS_EXT4=y
>  CONFIG_SPL_I2C_SUPPORT=y
>  CONFIG_SPL_WATCHDOG_SUPPORT=y
> @@ -36,6 +37,7 @@ CONFIG_CMD_CACHE=y
>  CONFIG_CMD_EXT4_WRITE=y
>  # CONFIG_SPL_PARTITION_UUIDS is not set
>  CONFIG_OF_CONTROL=y
> +CONFIG_SPL_OF_CONTROL=y
>  CONFIG_DEFAULT_DEVICE_TREE="imx6dl-hummingboard2-emmc-som-v15"
>  CONFIG_OF_LIST="imx6dl-hummingboard2-emmc-som-v15 imx6q-hummingboard2-emmc-som-v15"
>  CONFIG_MULTI_DTB_FIT=y
> @@ -44,6 +46,7 @@ CONFIG_SYS_RELOC_GD_ENV_ADDR=y
>  CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
>  CONFIG_NET_RANDOM_ETHADDR=y
>  CONFIG_DM=y
> +CONFIG_SPL_DM=y
>  CONFIG_DWC_AHSATA=y
>  CONFIG_DM_GPIO=y
>  CONFIG_DM_MMC=y

-- 
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