configs/imxrt1050-evk: new defconfig

Add defconfig for imxrt1050-evk is a development board from NXP.

The i.MXRTxxxx family spreads from i.MXRT1020 to i.MXRT1170 with the
first one supporting 1 USB OTG & 100M ethernet with a cortex-M7@500Mhz
up to the latter with i.MXRT1170 with cortex-M7@1Ghz and
cortex-M4@400Mhz, 2MB of internal SRAM, 2D GPU, 2x 1Gb and 1x 100Mb
ENET. The i.MXRT family is NXP's answer to STM32F7xx, as it uses only
simple SDRAM, it gives the chance of a 4 or less layer PCBs. Seeing
that these chips are comparable to the STM32F7xxs which have Buildroot
ported to them it seems reasonable to add support for them.

https://www.nxp.com/design/development-boards/i-mx-evaluation-and-development-boards/i-mx-rt1050-evaluation-kit:MIMXRT1050-EVK

Signed-off-by: Jesse Taube <Mr.Bossman075@gmail.com>
Cc: Giulio Benetti <giulio.benetti@benettiengineering.com>
Reviewed-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Tested-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

DEVELOPERS

@@ -1169,12 +1169,14 @@ F:	package/xapian/
 N:	Giulio Benetti <giulio.benetti@benettiengineering.com>
 F:	board/bananapi/bananapi-m2-ultra/
 F:	board/freescale/imx6ullevk/
+F:	board/freescale/imxrt1050evk/
 F:	board/olimex/a*
 F:	configs/amarula_vyasa_rk3288_defconfig
 F:	configs/asus_tinker_rk3288_defconfig
 F:	configs/bananapi_m2_ultra_defconfig
 F:	configs/freescale_imx6ullevk_defconfig
 F:	configs/imx6ullevk_defconfig
+F:	configs/imxrt1050-evk_defconfig
 F:	configs/olimex_a*
 F:	package/at/
 F:	package/binutils/
@@ -1533,6 +1535,10 @@ F:	package/strongswan/
 F:	package/wmctrl/
 F:	package/x11r7/xdriver_xf86-video-imx/
 
+N:	Jesse Taube <Mr.Bossman075@gmail.com>
+F:	board/freescale/imxrt1050evk/
+F:	configs/imxrt1050-evk_defconfig
+
 N:	Jesse Van Gavere <jesseevg@gmail.com>
 F:	package/qt6/
 

board/freescale/imxrt1050evk/genimage.cfg

@@ -0,0 +1,40 @@
+image boot.vfat {
+	vfat {
+		files = {
+			"uImage",
+			"imxrt1050-evk.dtb",
+		}
+	}
+
+	size = 8M
+}
+
+image sdcard.img {
+	hdimage {
+	}
+
+	partition SPL {
+		in-partition-table = "no"
+		image = "SPL"
+		offset = 1K
+		size = 127K
+	}
+
+	partition u-boot {
+		in-partition-table = "no"
+		image = "u-boot.img"
+		offset = 128K
+		size = 512K
+	}
+
+	partition boot {
+		partition-type = 0xc
+		bootable = "true"
+		image = "boot.vfat"
+	}
+
+	partition rootfs {
+		partition-type = 0x83
+		image = "rootfs.ext4"
+	}
+}

board/freescale/imxrt1050evk/readme.txt

@@ -0,0 +1,30 @@
+NXP i.MXRT1050 EVK board
+------------------------
+
+i.MX RT1050 are NXP's crossover MCUs. They combine the high performance and high
+level of integration of an applications processors with the ease-of-use and
+real-time functionality of a microcontroller. The i.MX RT1050 MCU runs on the Arm
+Cortex-M7 core at 600 MHz.
+https://www.nxp.com/design/development-boards/i-mx-evaluation-and-development-boards/i-mx-rt1050-evaluation-kit:MIMXRT1050-EVK
+
+To build a minimal support for this board:
+
+$ make imxrt1050-evk_defconfig
+$ make
+
+Buildroot prepares a bootable "sdcard.img" image in the output/images/
+directory, ready to be flashed into the SD card:
+
+$ dd if=output/images/sdcard.img of=/dev/sdX
+Where 'sdX' is the device node of the uSD.
+
+Jumper settings:
+
+   SW7: 1 0 1 0
+
+Where 0 means bottom position and 1 means top position (from the
+switch label numbers reference).
+
+Connect the USB cable between the EVK and the PC for the console.
+
+Insert the micro SD card in the board, power it up and U-Boot messages should come up.

board/freescale/imxrt1050evk/uboot.fragment

@@ -0,0 +1,2 @@
+CONFIG_USE_BOOTCOMMAND=y
+CONFIG_BOOTCOMMAND="setenv bootargs console=ttyLP0 root=/dev/mmcblk0p2 rw earlycon rootwait;load mmc 0:1 0x80800000 imxrt1050-evk.dtb;load mmc 0:1 0x80000000 uImage;bootm 0x80000000 - 0x80800000"

configs/imxrt1050-evk_defconfig

@@ -0,0 +1,44 @@
+# Architecture
+BR2_arm=y
+BR2_cortex_m7=y
+
+# Image
+BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
+BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/freescale/imxrt1050evk/genimage.cfg"
+
+# Toolchain
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_1=y
+
+# Kernel
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.1"
+BR2_LINUX_KERNEL_DEFCONFIG="imxrt"
+BR2_LINUX_KERNEL_UIMAGE=y
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="imxrt1050-evk"
+
+# Filesystem
+BR2_TARGET_ROOTFS_EXT2=y
+BR2_TARGET_ROOTFS_EXT2_4=y
+BR2_TARGET_ROOTFS_EXT2_SIZE="16M"
+
+# NOMMU Busybox
+BR2_PACKAGE_BUSYBOX_CONFIG="package/busybox/busybox-minimal.config"
+
+# Bootloader
+BR2_TARGET_UBOOT=y
+BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
+BR2_TARGET_UBOOT_CUSTOM_VERSION=y
+BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2022.10"
+BR2_TARGET_UBOOT_BOARD_DEFCONFIG="imxrt1050-evk"
+BR2_TARGET_UBOOT_CONFIG_FRAGMENT_FILES="board/freescale/imxrt1050evk/uboot.fragment"
+BR2_TARGET_UBOOT_FORMAT_IMG=y
+BR2_TARGET_UBOOT_SPL=y
+BR2_TARGET_UBOOT_SPL_NAME="SPL"
+BR2_TARGET_UBOOT_NEEDS_OPENSSL=y
+
+# Required tools to create the SD card image
+BR2_PACKAGE_HOST_GENIMAGE=y
+BR2_PACKAGE_HOST_DOSFSTOOLS=y
+BR2_PACKAGE_HOST_MTOOLS=y