[PATCH v2 2/2] board: imx8mm: add boot.cmd for distro boot on iMX8MM

[Peng Fan]

> Subject: [PATCH v2 2/2] board: imx8mm: add boot.cmd for distro boot on
> iMX8MM
> 
> From: Alice Guo <alice.guo at nxp.com>
> 
> Distro Boot requires a U-Boot-specific script named boot.scr or boot.scr.uimg
> which contains boot commands to boot the system. The boot.cmd is such a
> file. Use mkimage to generate boot.scr or boot.scr.uimg from boot.cmd, and
> the command is:
> mkimage -A arm -O linux -T script -C none -a 0 -e 0 -n "Distro Boot Script" -d
> boot.cmd boot.scr.uimg
> 
> The boot.cmd file is an example script and can be modified based on needs.
> bootargs is set in this script and root uses the default value "
> /dev/mmcblk1p2 rootwait rw" which can be changed by overriding mmcroot.
> 
> Signed-off-by: Alice Guo <alice.guo at nxp.com>
> ---
> 
> Changes for v2:
>  - add the additional explanation of boot.cmd in commit message
> 
>  board/freescale/imx8mm_evk/boot.cmd | 35
> +++++++++++++++++++++++++++++
>  1 file changed, 35 insertions(+)
>  create mode 100644 board/freescale/imx8mm_evk/boot.cmd
> 
> diff --git a/board/freescale/imx8mm_evk/boot.cmd
> b/board/freescale/imx8mm_evk/boot.cmd
> new file mode 100644
> index 0000000000..fdfceec263
> --- /dev/null
> +++ b/board/freescale/imx8mm_evk/boot.cmd
> @@ -0,0 +1,35 @@
> +setenv bootargs console=${console} root=${mmcroot};
> +
> +for boot_target in ${boot_targets};
> +do
> +        if test "${boot_target}" = "mmc1" ; then
> +                if fatload mmc 1:${mmcpart} ${kernel_addr_r} ${image};
> then
> +                        if fatload mmc 1:${mmcpart} ${fdt_addr}
> ${fdt_file}; then
> +                                echo Load image and .dtb from SD
> card(mmc1);
> +                                booti ${kernel_addr_r} -
> ${fdt_addr};
> +                                exit;
> +                        fi
> +                fi
> +        fi
> +
> +        if test "${boot_target}" = "mmc2" ; then
> +                if fatload mmc 2:${mmcpart} ${kernel_addr_r} ${image};
> then
> +                        if fatload mmc 2:${mmcpart} ${fdt_addr}
> ${fdt_file}; then
> +                                echo Load image and .dtb from
> eMMC(mmc2);
> +                                booti ${kernel_addr_r} -
> ${fdt_addr};
> +                                exit;
> +                        fi
> +                fi
> +        fi
> +
> +        if test "${boot_target}" = "dhcp" ; then
> +                if dhcp ${kernel_addr_r} ${serverip}:${image}; then
> +                        if dhcp ${fdt_addr} ${serverip}:${fdt_file};
> then
> +                                echo Load image and .dtb from
> net(dhcp);
> +                                booti ${kernel_addr_r} -
> ${fdt_addr};
> +                                exit;
> +                        fi
> +                fi
> +        fi
> +
> +done
> --

Reviewed-by: Peng Fan <peng.fan at nxp.com>