configs/rockpro64: new defconfig

A defconfig for the rockpro64 was added in
59e1077b4e, but then removed
in 10f49213b7 because an ARM32
compiler was needed to build ATF, and this was not supported
back then.

Now, since package/arm-gnu-a-toolchain/ has been added, this
defconfig can be re-introduced.

Following new changes are introduced in comparision with the
older changeset:

    - renamed defconfig from pine64_rockpro64 to rockpro64
    - updated readme
    - using a GPT partition layout
    - update defconfig to build ATF
    - bump u-boot to 2020.07
    - bump linux to 5.8.2

Signed-off-by: Suniel Mahesh <sunil@amarulasolutions.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Arnout: fixate U-Boot version; remove blind BR2_TARGET_UBOOT_NEEDS_PYTHON]

DEVELOPERS

@@ -2451,6 +2451,7 @@ F:	package/powertop/
 
 N:	Suniel Mahesh <sunil@amarulasolutions.com>
 F:	board/firefly/
+F:	board/pine64/rockpro64
 F:	board/radxa/rockpi-4
 F:	board/radxa/rockpi-n8
 F:	board/radxa/rockpi-n10
@@ -2458,6 +2459,7 @@ F:	configs/roc_pc_rk3399_defconfig
 F:	configs/rock_pi_4_defconfig
 F:	configs/rock_pi_n8_defconfig
 F:	configs/rock_pi_n10_defconfig
+F:	configs/rockpro64_defconfig
 F:	package/arm-gnu-a-toolchain/
 
 N:	Sven Haardiek <sven.haardiek@iotec-gmbh.de>

board/pine64/rockpro64/extlinux.conf

@@ -0,0 +1,4 @@
+label RK3399_ROCKPRO64 linux
+  kernel /Image
+  devicetree /rk3399-rockpro64.dtb
+  append earlycon=uart8250,mmio32,0xff1a0000 root=/dev/mmcblk0p4 rw rootwait

board/pine64/rockpro64/genimage.cfg

@@ -0,0 +1,39 @@
+image boot.vfat {
+	vfat {
+		files = {
+			"Image",
+			"rk3399-rockpro64.dtb",
+			"extlinux"
+		}
+	}
+	size = 64M
+}
+
+image sdcard.img {
+
+	hdimage {
+		gpt = true
+	}
+
+	partition loader1 {
+		image = "idbloader.img"
+		offset = 32K
+	}
+
+	partition loader2 {
+		image = "u-boot.itb"
+		offset = 8M
+	}
+
+	partition boot {
+		partition-type = 0xC
+		bootable = "true"
+		image = "boot.vfat"
+		offset = 16M
+	}
+
+	partition rootfs {
+		partition-type = 0x83
+		image = "rootfs.ext4"
+	}
+}

board/pine64/rockpro64/post-build.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+BOARD_DIR="$(dirname $0)"
+
+install -m 0644 -D $BOARD_DIR/extlinux.conf $BINARIES_DIR/extlinux/extlinux.conf

board/pine64/rockpro64/readme.txt

@@ -0,0 +1,60 @@
+PINE64 ROCKPro64
+================
+https://www.pine64.org/rockpro64/
+
+Build:
+======
+  $ make rockpro64_defconfig
+  $ make
+
+Files created in output directory
+=================================
+
+output/images
+
+├── bl31.elf
+├── boot.vfat
+├── extlinux
+├── idbloader.img
+├── Image
+├── rk3399-rockpro64.dtb
+├── rootfs.ext2
+├── rootfs.ext4 -> rootfs.ext2
+├── rootfs.tar
+├── sdcard.img
+├── u-boot.bin
+└── u-boot.itb
+
+Creating bootable SD card:
+==========================
+
+Simply invoke (as root)
+
+sudo dd if=output/images/sdcard.img of=/dev/sdX && sync
+
+Where X is your SD card device.
+
+Booting:
+========
+RockPro64 has a 40-pin PI-2 GPIO Bus.
+
+Connect a jumper between pin 23 and pin 25 for SD card boot.
+
+Serial console:
+---------------
+The pin layout for serial console on PI-2 GPIO Bus is as follows:
+
+pin 6:  gnd
+pin 8:  tx
+pin 10: rx
+
+Initially connect pin 6 and pin 8(transmit). Apply power to RockPro64, once the
+power is on then connect pin 10(receive).
+
+Baudrate for this board is 1500000.
+
+Login:
+------
+Enter 'root' as login user, and the prompt is ready.
+
+https://wiki.amarulasolutions.com/bsp/rockchip/rk3399/rockpro64.html

configs/rockpro64_defconfig

@@ -0,0 +1,53 @@
+# Architecture
+BR2_aarch64=y
+BR2_cortex_a72_a53=y
+
+# Linux headers same as kernel, a 5.8 series
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_8=y
+
+# Firmware
+BR2_TARGET_ARM_TRUSTED_FIRMWARE=y
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_GIT=y
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_REPO_URL="https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git"
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_REPO_VERSION="11a0a46a899fcc3b1fdb214b382f3d7495d88eca"
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_PLATFORM="rk3399"
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_BL31=y
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_NEEDS_ARM32_TOOLCHAIN=y
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_IMAGES=""
+
+# Bootloader
+BR2_TARGET_UBOOT=y
+BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
+BR2_TARGET_UBOOT_CUSTOM_VERSION=y
+BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2020.07"
+BR2_TARGET_UBOOT_BOARD_DEFCONFIG="rockpro64-rk3399"
+BR2_TARGET_UBOOT_NEEDS_DTC=y
+BR2_TARGET_UBOOT_NEEDS_PYTHON3=y
+BR2_TARGET_UBOOT_NEEDS_ATF_BL31=y
+BR2_TARGET_UBOOT_NEEDS_ATF_BL31_ELF=y
+BR2_TARGET_UBOOT_FORMAT_CUSTOM=y
+BR2_TARGET_UBOOT_FORMAT_CUSTOM_NAME="u-boot.itb"
+BR2_TARGET_UBOOT_SPL=y
+BR2_TARGET_UBOOT_SPL_NAME="idbloader.img"
+
+# Kernel
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.8.2"
+BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG=y
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="rockchip/rk3399-rockpro64"
+BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
+
+# Filesystem
+BR2_TARGET_GENERIC_HOSTNAME="rockpro64"
+BR2_TARGET_GENERIC_ISSUE="Welcome to ROCKPRO64"
+BR2_TARGET_ROOTFS_EXT2=y
+BR2_TARGET_ROOTFS_EXT2_4=y
+BR2_PACKAGE_HOST_DOSFSTOOLS=y
+BR2_PACKAGE_HOST_GENIMAGE=y
+BR2_PACKAGE_HOST_MTOOLS=y
+BR2_PACKAGE_HOST_UBOOT_TOOLS=y
+BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
+BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/pine64/rockpro64/genimage.cfg"
+BR2_ROOTFS_POST_BUILD_SCRIPT="board/pine64/rockpro64/post-build.sh"