[PATCH 1/3] configs: am62ax_evm_r5_ethboot: Enable config options required for Ethernet boot

[Andrew Davis]

On 7/2/26 3:12 AM, Chintan Vankar wrote:
> Enable config support to enable Ethernet boot on SK-AM62A-LP for R5 SPL
> stage.
> 
> Signed-off-by: Chintan Vankar <c-vankar at ti.com>
> ---
>   configs/am62ax_evm_r5_ethboot_defconfig | 27 +++++++++++++++++++++++++
>   1 file changed, 27 insertions(+)
>   create mode 100644 configs/am62ax_evm_r5_ethboot_defconfig
> 
> diff --git a/configs/am62ax_evm_r5_ethboot_defconfig b/configs/am62ax_evm_r5_ethboot_defconfig
> new file mode 100644
> index 00000000000..215084d1490
> --- /dev/null
> +++ b/configs/am62ax_evm_r5_ethboot_defconfig
> @@ -0,0 +1,27 @@
> +#include <configs/am62ax_evm_r5_defconfig>
> +
> +CONFIG_ARM=y
> +CONFIG_ARCH_K3=y
> +CONFIG_SOC_K3_AM62A7=y
> +CONFIG_TARGET_AM62A7_R5_EVM=y
> +CONFIG_DEFAULT_DEVICE_TREE="k3-am62a7-r5-sk"

The above 5 config items are already set in the included defconfig,
they can be removed.

There used to be an issue with buildman that caused us to need to
repeat these items so it could detect the arch/board, but that has
been fixed for a while now. I know many other boards still have this
redundancy, and cleaning that up so others stop copying it has been
on my todo list for a while now.. If anyone else (hint Bryan/Anshul)
wants some easy patches feel free.

> +# CONFIG_NO_NET is not set
> +CONFIG_SPL_GPIO=y
> +CONFIG_SPL_MMC=n

So why can't Ethernet boot be supported by the base defconfig? I'm
guessing we don't have the SRAM space at the R5 stage and that is
why we disable MMC boot here. Would be good to put that info in the
commit message.

Andrew

> +CONFIG_SPL_BOARD_INIT=y
> +CONFIG_SPL_STACK_R_ADDR=0x82000000
> +CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN=0x200000
> +CONFIG_SPL_DMA=y
> +CONFIG_SPL_ENV_SUPPORT=y
> +CONFIG_SPL_ETH=y
> +CONFIG_SPL_I2C=y
> +CONFIG_NET=y
> +CONFIG_SPL_NET=y
> +CONFIG_SPL_NET_VCI_STRING="AM62AX U-Boot R5 SPL"
> +CONFIG_CMD_DHCP=y
> +CONFIG_SPL_SYSCON=y
> +CONFIG_DMA_CHANNELS=y
> +CONFIG_TI_K3_NAVSS_UDMA=y
> +CONFIG_DM_I2C=y
> +CONFIG_PHY_TI_DP83867=y
> +CONFIG_TI_AM65_CPSW_NUSS=y