configs/freescale_imx95_15x15_frdm: new defconfig

Add defconfig for NXP's IMX95-15x15-FRDM board.

Due to the upstream uboot commit [1], this commit includes a uboot
config fragment to disable CONFIG_EFI_CAPSULE_AUTHENTICATE, to
remove the dependency on the command "cert-to-efi-sig-list", provided
the host efitools package, which is not yet in Buildroot.

[1] fd58c275f6

Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
Tested-by: Julien Olivain <ju.o@free.fr>
[Julien:
 - regenerate defconfig with savedefconfig
 - switch to Bootlin external glibc stable toolchain
 - add missing BR2_PACKAGE_HOST_DOSFSTOOLS=y
 - add missing BR2_PACKAGE_HOST_MTOOLS=y
 - unset unneeded BR2_TARGET_ROOTFS_TAR
 - add documentation links in readme.txt
 - update to lf-6.18.37-2.1.0
 - add uboot.fragment, needed after uboot update
 - tested on board 700-94879 Rev C3
]
Signed-off-by: Julien Olivain <ju.o@free.fr>

board/freescale/imx95-15x15-frdm/patches/arm-trusted-firmware/arm-trusted-firmware.hash

@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  c7b92f0da1a154ebabd4425a1627a726d8e0206e8b417d8c87b5a9636b52a3e5  imx-atf-lf-6.18.37-2.1.0.tar.gz

board/freescale/imx95-15x15-frdm/patches/linux/linux.hash

@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  352273c5098d73762074997a89537f06994d6a1c2e9d291dd8431dfe4fa0be27  linux-imx-lf-6.18.37-2.1.0.tar.gz

board/freescale/imx95-15x15-frdm/patches/uboot/uboot.hash

@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  b9aa6a73f670f02a0903e3298923c3aa802ba3ffb7a53f6c397d28998c3ee8d8  uboot-imx-lf-6.18.37-2.1.0.tar.gz

board/freescale/imx95-15x15-frdm/readme.txt

@@ -0,0 +1,68 @@
+***************************
+NXP i.MX95 15x15 FRDM board
+***************************
+
+This file documents the Buildroot support for the i.MX95 15x15 FRDM board.
+For more information on this board, see [1].
+
+
+Build
+=====
+
+First, configure Buildroot for the i.MX95 15x15 FRDM board:
+
+    make freescale_imx95_15x15_frdm_defconfig
+
+Build all components:
+
+    make
+
+When this command completes, the generated image containing everything
+to boot from the SD card is located in "output/images/sdcard.img".
+
+
+Create a bootable SD card
+=========================
+
+To determine the device associated with the SD card, have a look in the
+/proc/partitions file:
+
+    cat /proc/partitions
+
+Buildroot prepares a bootable "sdcard.img" image in the output/images/
+directory, ready to be dumped on an SD card. Launch the following
+command as root:
+
+    dd if=output/images/sdcard.img of=/dev/<your-sd-device>
+
+*** WARNING! This will destroy all the card content. Use with care! ***
+
+For details about the medium image layout, see the definition in
+board/freescale/common/imx/genimage.cfg.template_imx9.
+
+
+Boot the i.MX95 15x15 FRDM board
+================================
+
+To boot your newly created system (refer to the i.MX95 15x15 FRDM
+Documentation [2] for guidance):
+- insert the SD card in the SD slot of the board;
+- configure the boot switch as follows:
+  SW1: 11 SW1[1-2] ("USDHC2 4-bit SD3.0" Boot Mode)
+- connect a USB Type-C cable into the USB-DBG port and connect using
+  a terminal emulator at 115200 bps, 8n1;
+- power on the board by connecting a USB Type-C cable into the PWR IN
+  Power USB port.
+
+Note: the debug USB connector presents 4 UARTS (for example
+/dev/ttyACM[0-3]), the AP UART should be the first one (in the previous
+example, /dev/ttyACM0), while the SM UART should be the second one
+(in the previous example, /dev/ttyACM1).
+
+Enjoy!
+
+
+References
+==========
+[1] https://www.nxp.com/FRDM-IMX95
+[2] https://www.nxp.com/document/guide/getting-started-with-frdm-imx95:GS-FRDM-IMX95

board/freescale/imx95-15x15-frdm/uboot.fragment

@@ -0,0 +1 @@
+# CONFIG_EFI_CAPSULE_AUTHENTICATE is not set

configs/freescale_imx95_15x15_frdm_defconfig

@@ -0,0 +1,42 @@
+BR2_cortex_a55=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_BOOTLIN=y
+BR2_TOOLCHAIN_EXTERNAL_BOOTLIN_AARCH64_GLIBC_STABLE=y
+BR2_GLOBAL_PATCH_DIR="board/freescale/imx95-15x15-frdm/patches"
+BR2_DOWNLOAD_FORCE_CHECK_HASHES=y
+BR2_ROOTFS_POST_IMAGE_SCRIPT="board/freescale/common/imx/imx95-bootloader-prepare.sh board/freescale/common/imx/post-image.sh"
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_TARBALL=y
+BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,nxp-imx,linux-imx,lf-6.18.37-2.1.0)/linux-imx-lf-6.18.37-2.1.0.tar.gz"
+BR2_LINUX_KERNEL_DEFCONFIG="imx_v8"
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="freescale/imx95-15x15-frdm"
+BR2_PACKAGE_FREESCALE_IMX=y
+BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX95=y
+BR2_PACKAGE_IMX_OEI=y
+BR2_PACKAGE_IMX_OEI_TARGET_BOARD="mx95lp4x-15"
+BR2_PACKAGE_FIRMWARE_ELE_IMX=y
+BR2_PACKAGE_FIRMWARE_IMX=y
+BR2_PACKAGE_FIRMWARE_IMX_LPDDR4X=y
+BR2_PACKAGE_IMX_SM=y
+BR2_TARGET_ROOTFS_EXT2=y
+# BR2_TARGET_ROOTFS_TAR is not set
+BR2_TARGET_ARM_TRUSTED_FIRMWARE=y
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_TARBALL=y
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_TARBALL_LOCATION="$(call github,nxp-imx,imx-atf,lf-6.18.37-2.1.0)/imx-atf-lf-6.18.37-2.1.0.tar.gz"
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_PLATFORM="imx95"
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_BL31=y
+BR2_TARGET_UBOOT=y
+BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
+BR2_TARGET_UBOOT_CUSTOM_TARBALL=y
+BR2_TARGET_UBOOT_CUSTOM_TARBALL_LOCATION="$(call github,nxp-imx,uboot-imx,lf-6.18.37-2.1.0)/uboot-imx-lf-6.18.37-2.1.0.tar.gz"
+BR2_TARGET_UBOOT_BOARD_DEFCONFIG="imx95_15x15_frdm"
+BR2_TARGET_UBOOT_CONFIG_FRAGMENT_FILES="board/freescale/imx95-15x15-frdm/uboot.fragment"
+BR2_TARGET_UBOOT_NEEDS_DTC=y
+BR2_TARGET_UBOOT_NEEDS_OPENSSL=y
+BR2_TARGET_UBOOT_NEEDS_GNUTLS=y
+BR2_TARGET_UBOOT_SPL=y
+BR2_PACKAGE_HOST_DOSFSTOOLS=y
+BR2_PACKAGE_HOST_GENIMAGE=y
+BR2_PACKAGE_HOST_IMX_MKIMAGE=y
+BR2_PACKAGE_HOST_MTOOLS=y