configs/microchip_sama7g5ek: new defconfigs

Add new defconfigs for sama7g5 evaluation kit.
Update README with new defconfigs.
Board uses linux 5.15 mainline.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

DEVELOPERS

@@ -789,6 +789,11 @@ F:	package/optee-client/
 F:	package/optee-examples/
 F:	package/optee-test/
 
+N:	Eugen Hristev <eugen.hristev@microchip.com>
+F:	board/atmel/readme.txt
+F:	board/microchip/sama7g5ek/
+F:	configs/microchip_sama7g5ek*
+
 N:	Eugene Tarassov <eugene@largest.net>
 F:	package/tcf-agent/
 

board/atmel/readme.txt

@@ -25,6 +25,8 @@ This guide covers the following configurations:
  - microchip_sam9x60ek_mmc_dev_defconfig
  - microchip_sama5d2_icp_mmc_defconfig
  - microchip_sama5d2_icp_mmc_dev_defconfig
+ - microchip_sama7g5ek_mmc_defconfig
+ - microchip_sama7g5ek_mmc_dev_defconfig
 
 These configurations will use AT91Bootstrap, u-boot and a linux kernel from
 the git trees maintained by Atmel.

board/microchip/sama7g5ek/genimage.cfg

@@ -0,0 +1,31 @@
+# Image for SD card boot on Microchip SAMA7G5EK (sama7g5 evaluation kit)
+#
+image boot.vfat {
+	vfat {
+		files = {
+			"zImage",
+			"at91-sama7g5ek.dtb",
+			"boot.bin",
+			"u-boot.bin"
+		}
+	}
+	size = 16M
+}
+
+image sdcard.img {
+	hdimage {
+	}
+
+	partition boot {
+		partition-type = 0xC
+		bootable = "true"
+		image = "boot.vfat"
+		offset = 1M
+	}
+
+	partition rootfs {
+		partition-type = 0x83
+		image = "rootfs.ext4"
+		size = 512M
+	}
+}

configs/microchip_sama7g5ek_mmc_defconfig

@@ -0,0 +1,25 @@
+BR2_arm=y
+BR2_cortex_a7=y
+BR2_ARM_FPU_NEON_VFPV4=y
+BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
+BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/microchip/sama7g5ek/genimage.cfg"
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_DEFCONFIG="sama7"
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="at91-sama7g5ek"
+BR2_TARGET_ROOTFS_EXT2=y
+BR2_TARGET_ROOTFS_EXT2_4=y
+BR2_TARGET_ROOTFS_EXT2_SIZE="120M"
+BR2_TARGET_AT91BOOTSTRAP3=y
+BR2_TARGET_AT91BOOTSTRAP3_CUSTOM_TARBALL=y
+BR2_TARGET_AT91BOOTSTRAP3_CUSTOM_TARBALL_LOCATION="$(call github,linux4sam,at91bootstrap,v4.0.0)/at91bootstrap-v4.0.0.tar.gz"
+BR2_TARGET_AT91BOOTSTRAP3_DEFCONFIG="sama7g5eksd_uboot"
+BR2_TARGET_UBOOT=y
+BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
+BR2_TARGET_UBOOT_CUSTOM_TARBALL=y
+BR2_TARGET_UBOOT_CUSTOM_TARBALL_LOCATION="$(call github,linux4sam,u-boot-at91,linux4sam-2021.04)/u-boot-at91-linux4sam-2021.04.tar.gz"
+BR2_TARGET_UBOOT_BOARD_DEFCONFIG="sama7g5ek_mmc1"
+BR2_TARGET_UBOOT_NEEDS_DTC=y
+BR2_PACKAGE_HOST_DOSFSTOOLS=y
+BR2_PACKAGE_HOST_GENIMAGE=y
+BR2_PACKAGE_HOST_MTOOLS=y

configs/microchip_sama7g5ek_mmc_dev_defconfig

@@ -0,0 +1,68 @@
+BR2_arm=y
+BR2_cortex_a7=y
+BR2_ARM_FPU_NEON_VFPV4=y
+BR2_TOOLCHAIN_BUILDROOT_WCHAR=y
+BR2_PTHREAD_DEBUG=y
+BR2_TOOLCHAIN_BUILDROOT_CXX=y
+BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV=y
+BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
+BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/microchip/sama7g5ek/genimage.cfg"
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_DEFCONFIG="sama7"
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="at91-sama7g5ek"
+BR2_PACKAGE_LINUX_TOOLS_IIO=y
+BR2_PACKAGE_BZIP2=y
+BR2_PACKAGE_XZ=y
+BR2_PACKAGE_ZIP=y
+BR2_PACKAGE_GDB=y
+BR2_PACKAGE_LMBENCH=y
+BR2_PACKAGE_STRACE=y
+BR2_PACKAGE_TREE=y
+BR2_PACKAGE_DOSFSTOOLS=y
+BR2_PACKAGE_DOSFSTOOLS_FATLABEL=y
+BR2_PACKAGE_DOSFSTOOLS_FSCK_FAT=y
+BR2_PACKAGE_DOSFSTOOLS_MKFS_FAT=y
+BR2_PACKAGE_MMC_UTILS=y
+BR2_PACKAGE_MTD=y
+BR2_PACKAGE_WILC1000_FIRMWARE=y
+BR2_PACKAGE_EVTEST=y
+BR2_PACKAGE_SETSERIAL=y
+BR2_PACKAGE_SPI_TOOLS=y
+BR2_PACKAGE_USBUTILS=y
+BR2_PACKAGE_LIBSYSFS=y
+BR2_PACKAGE_LIBDRM=y
+BR2_PACKAGE_LIBDRM_INSTALL_TESTS=y
+BR2_PACKAGE_DTC=y
+BR2_PACKAGE_DTC_PROGRAMS=y
+BR2_PACKAGE_ARGP_STANDALONE=y
+BR2_PACKAGE_BLUEZ5_UTILS=y
+BR2_PACKAGE_BRIDGE_UTILS=y
+BR2_PACKAGE_CAN_UTILS=y
+BR2_PACKAGE_ETHTOOL=y
+BR2_PACKAGE_IPERF=y
+BR2_PACKAGE_IPROUTE2=y
+BR2_PACKAGE_IPTABLES=y
+BR2_PACKAGE_IW=y
+BR2_PACKAGE_LRZSZ=y
+BR2_PACKAGE_MII_DIAG=y
+BR2_PACKAGE_OPENSSH=y
+BR2_PACKAGE_WIRELESS_TOOLS=y
+BR2_PACKAGE_WPA_SUPPLICANT=y
+BR2_PACKAGE_HTOP=y
+BR2_TARGET_ROOTFS_EXT2=y
+BR2_TARGET_ROOTFS_EXT2_4=y
+BR2_TARGET_ROOTFS_EXT2_SIZE="120M"
+BR2_TARGET_AT91BOOTSTRAP3=y
+BR2_TARGET_AT91BOOTSTRAP3_CUSTOM_TARBALL=y
+BR2_TARGET_AT91BOOTSTRAP3_CUSTOM_TARBALL_LOCATION="$(call github,linux4sam,at91bootstrap,v4.0.0)/at91bootstrap-v4.0.0.tar.gz"
+BR2_TARGET_AT91BOOTSTRAP3_DEFCONFIG="sama7g5eksd_uboot"
+BR2_TARGET_UBOOT=y
+BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
+BR2_TARGET_UBOOT_CUSTOM_TARBALL=y
+BR2_TARGET_UBOOT_CUSTOM_TARBALL_LOCATION="$(call github,linux4sam,u-boot-at91,linux4sam-2021.04)/u-boot-at91-linux4sam-2021.04.tar.gz"
+BR2_TARGET_UBOOT_BOARD_DEFCONFIG="sama7g5ek_mmc1"
+BR2_TARGET_UBOOT_NEEDS_DTC=y
+BR2_PACKAGE_HOST_DOSFSTOOLS=y
+BR2_PACKAGE_HOST_GENIMAGE=y
+BR2_PACKAGE_HOST_MTOOLS=y