[Buildroot] [PATCH] configs: asus_tinker-s_rk3288: new config for the "S" variant of the Tinkerboard

[Flávio Tapajós]

This commit duplicates the asus_tinker_rk3288_defconfig changing:

  - BR2_LINUX_KERNEL_INTREE_DTS_NAME to rk3288-tinker-s
  - BR2_TARGET_UBOOT_BOARD_DEFCONFIG to tinker-s-rk3288
  - extlinux.conf devicetree to /boot/rk3288-tinker-s.dtb
  - root device format to <major>:<minor> in order to prevent the kernel to mount rootfs
    from the wrong device

Signed-off-by: Flávio Tapajós <flavio.tapajos at newtesc.com.br>
---
 board/asus/tinker-s/extlinux.conf      |  4 +++
 board/asus/tinker-s/post-build.sh      |  9 +++++
 board/asus/tinker-s/readme.txt         | 43 ++++++++++++++++++++++++
 configs/asus_tinker-s_rk3288_defconfig | 46 ++++++++++++++++++++++++++
 4 files changed, 102 insertions(+)
 create mode 100644 board/asus/tinker-s/extlinux.conf
 create mode 100755 board/asus/tinker-s/post-build.sh
 create mode 100644 board/asus/tinker-s/readme.txt
 create mode 100644 configs/asus_tinker-s_rk3288_defconfig

diff --git a/board/asus/tinker-s/extlinux.conf b/board/asus/tinker-s/extlinux.conf
new file mode 100644
index 0000000000..5a2d05b811
--- /dev/null
+++ b/board/asus/tinker-s/extlinux.conf
@@ -0,0 +1,4 @@
+label Tinker linux
+  kernel /boot/uImage
+  devicetree /boot/rk3288-tinker-s.dtb
+  append console=ttyS2,115200n8 root=179:1 rootwait
diff --git a/board/asus/tinker-s/post-build.sh b/board/asus/tinker-s/post-build.sh
new file mode 100755
index 0000000000..ffbbcdeb58
--- /dev/null
+++ b/board/asus/tinker-s/post-build.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+MKIMAGE=$HOST_DIR/bin/mkimage
+BOARD_DIR="$(dirname $0)"
+
+$MKIMAGE -n rk3288 -T rksd -d $BINARIES_DIR/u-boot-tpl.bin $BINARIES_DIR/u-boot-tpl.img
+cat $BINARIES_DIR/u-boot-tpl.img $BINARIES_DIR/u-boot-spl-dtb.bin > $BINARIES_DIR/u-boot-tpl-spl-dtb.img
+
+install -m 0644 -D $BOARD_DIR/extlinux.conf $TARGET_DIR/boot/extlinux/extlinux.conf
diff --git a/board/asus/tinker-s/readme.txt b/board/asus/tinker-s/readme.txt
new file mode 100644
index 0000000000..3dffa12b45
--- /dev/null
+++ b/board/asus/tinker-s/readme.txt
@@ -0,0 +1,43 @@
+Tinker S RK3288
+=============
+
+Tinker Board is a Single Board Computer (SBC) in an ultra-small form
+factor that offers class-leading performance while leveraging outstanding
+mechanical compatibility. The "S" variant of the Tinker Board has eMMC
+
+Tinker link:
+https://www.asus.com/br/motherboards-components/single-board-computer/all-series/tinker-board-s/
+
+Wiki link:
+https://openedev.amarulasolutions.com/display/ODWIKI/Tinker+RK3288
+
+How to build it
+===============
+
+  $ make asus_tinker-s_rk3288_defconfig
+
+Then you can edit the build options using
+
+  $ make menuconfig
+
+Compile all and build rootfs image:
+
+  $ make
+
+Prepare your SDCard
+===================
+
+Buildroot generates a ready-to-use SD card image that you can flash directly to
+the card. The image will be in output/images/sdcard.img.
+You can write this image directly to an SD card device (i.e. /dev/xxx):
+
+  $ sudo dd if=output/images/sdcard.img of=/dev/xxx
+  $ sudo sync
+
+Finally, you can insert the SD card to the Tinker RK3288 board and boot it.
+
+NOTE:
+USB power supply requires more than the standard 500mA USB current, so
+this board must be supplied from a capable port or from an external
+AC/DC adapter. Otherwise it will hang forever while loading the kernel
+image.
diff --git a/configs/asus_tinker-s_rk3288_defconfig b/configs/asus_tinker-s_rk3288_defconfig
new file mode 100644
index 0000000000..291333f2da
--- /dev/null
+++ b/configs/asus_tinker-s_rk3288_defconfig
@@ -0,0 +1,46 @@
+# Architecture
+BR2_arm=y
+BR2_cortex_a17=y
+BR2_ARM_FPU_NEON_VFPV4=y
+
+# Linux headers same as kernel, a 6.1 series
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_1=y
+
+# 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="tinker-s-rk3288"
+BR2_TARGET_UBOOT_NEEDS_DTC=y
+BR2_TARGET_UBOOT_NEEDS_PYTHON3=y
+BR2_TARGET_UBOOT_NEEDS_PYLIBFDT=y
+BR2_TARGET_UBOOT_NEEDS_OPENSSL=y
+BR2_TARGET_UBOOT_FORMAT_DTB_IMG=y
+BR2_TARGET_UBOOT_SPL=y
+BR2_TARGET_UBOOT_SPL_NAME="spl/u-boot-spl-dtb.bin tpl/u-boot-tpl.bin"
+
+# Kernel
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.1.2"
+BR2_LINUX_KERNEL_DEFCONFIG="multi_v7"
+BR2_LINUX_KERNEL_UIMAGE=y
+BR2_LINUX_KERNEL_UIMAGE_LOADADDR="0x02000000"
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="rk3288-tinker-s"
+BR2_LINUX_KERNEL_INSTALL_TARGET=y
+
+# Filesystem
+BR2_TARGET_GENERIC_HOSTNAME="tinker-rk3288-s"
+BR2_TARGET_GENERIC_ISSUE="Welcome to TINKER S RK3288!"
+BR2_TARGET_ROOTFS_EXT2=y
+BR2_TARGET_ROOTFS_EXT2_4=y
+BR2_TARGET_ROOTFS_EXT2_SIZE="512M"
+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/asus/tinker/genimage.cfg"
+BR2_ROOTFS_POST_BUILD_SCRIPT="board/asus/tinker-s/post-build.sh"
-- 
2.41.0