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* [Buildroot] [PATCH] board/t3/t3-gem-o1: add new board
@ 2026-07-06 18:39 Selman Çetin via buildroot
  2026-07-13 14:56 ` [Buildroot] " dowan gullient via buildroot
  2026-07-19 17:12 ` [Buildroot] [PATCH] " Selman Çetin via buildroot
  0 siblings, 2 replies; 4+ messages in thread
From: Selman Çetin via buildroot @ 2026-07-06 18:39 UTC (permalink / raw)
  To: buildroot; +Cc: selman.cetin, support

This commit adds support for the T3-GEM-O1

More information about the board can be found at:
https://t3gemstone.org/en

Documentation and usage guides are available at:
https://docs.t3gemstone.org/en/introduction

The official GitHub repository can be found at:
https://github.com/t3gemstone

Hardware Specifications:
- Processor: Quad-core ARM Cortex-A53 @1.4 GHz with GPU, DSP and AI accelerators
- RAM: 4 GB LPDDR4
- Storage: 32 GB eMMC, MicroSD slot (SDR104), M.2 2280 NVMe SSD Port
- Connectivity: Wi-Fi 802.11n & Bluetooth 5.1 (WL1835MOD)
- Network: Gigabit Ethernet
- USB: 2x USB 3.0 Type-A, 1x USB 2.0 Type-A, 1x USB 2.0 Type-C (Device + PD)
- Display/Camera: 1x HDMI, 1x 4-lane MIPI display, 1x 4-lane MIPI camera
- Peripherals: CAN FD, 40-pin GPIO Header, 10-pin JTAG, RTC (Maxim DS1340)
- Sensors: ICM-20948 (9-Axis IMU), BMP390 (Barometric), HDC2010 (Humidity/Temp)
- Power: USB Type-C (5-9V/3A) or DC Jack (5-12V/5A)

Signed-off-by: Selman Çetin <selman.cetin@t3gemstone.org>
---
 board/t3/t3-gem-o1/genimage.cfg               | 30 ++++++++++
 .../arm-trusted-firmware.hash                 |  2 +
 .../patches/linux-headers/linux-headers.hash  |  2 +
 board/t3/t3-gem-o1/patches/linux/linux.hash   |  2 +
 .../t3-gem-o1/patches/optee-os/optee-os.hash  |  2 +
 .../0001-fix-binman-importlib.patch           | 37 ++++++++++++
 .../ti-k3-r5-loader/ti-k3-r5-loader.hash      |  2 +
 .../uboot/0001-fix-binman-importlib.patch     | 37 ++++++++++++
 board/t3/t3-gem-o1/patches/uboot/uboot.hash   |  2 +
 board/t3/t3-gem-o1/post-image.sh              | 22 +++++++
 board/t3/t3-gem-o1/readme.txt                 | 35 +++++++++++
 .../rootfs_overlay/etc/init.d/S89firstboot    | 50 ++++++++++++++++
 board/t3/t3-gem-o1/uEnv.txt                   |  6 ++
 configs/t3_gem_o1_defconfig                   | 59 +++++++++++++++++++
 14 files changed, 288 insertions(+)
 create mode 100644 board/t3/t3-gem-o1/genimage.cfg
 create mode 100644 board/t3/t3-gem-o1/patches/arm-trusted-firmware/arm-trusted-firmware.hash
 create mode 100644 board/t3/t3-gem-o1/patches/linux-headers/linux-headers.hash
 create mode 100644 board/t3/t3-gem-o1/patches/linux/linux.hash
 create mode 100644 board/t3/t3-gem-o1/patches/optee-os/optee-os.hash
 create mode 100644 board/t3/t3-gem-o1/patches/ti-k3-r5-loader/0001-fix-binman-importlib.patch
 create mode 100644 board/t3/t3-gem-o1/patches/ti-k3-r5-loader/ti-k3-r5-loader.hash
 create mode 100644 board/t3/t3-gem-o1/patches/uboot/0001-fix-binman-importlib.patch
 create mode 100644 board/t3/t3-gem-o1/patches/uboot/uboot.hash
 create mode 100755 board/t3/t3-gem-o1/post-image.sh
 create mode 100644 board/t3/t3-gem-o1/readme.txt
 create mode 100755 board/t3/t3-gem-o1/rootfs_overlay/etc/init.d/S89firstboot
 create mode 100644 board/t3/t3-gem-o1/uEnv.txt
 create mode 100644 configs/t3_gem_o1_defconfig

diff --git a/board/t3/t3-gem-o1/genimage.cfg b/board/t3/t3-gem-o1/genimage.cfg
new file mode 100644
index 0000000000..3647706542
--- /dev/null
+++ b/board/t3/t3-gem-o1/genimage.cfg
@@ -0,0 +1,30 @@
+image boot.vfat {
+	vfat {
+		files = {
+			"tiboot3.bin",
+			"tispl.bin",
+			"u-boot.img",
+			"Image",
+			"k3-am67a-t3-gem-o1.dtb",
+			"uEnv.txt"
+		}
+	}
+	size = 64M
+}
+
+image sdcard.img {
+	hdimage {
+	}
+
+	partition boot {
+		partition-type = 0xC
+		bootable = "true"
+		image = "boot.vfat"
+		offset = 4M
+	}
+
+	partition rootfs {
+		partition-type = 0x83
+		image = "rootfs.ext4"
+	}
+}
diff --git a/board/t3/t3-gem-o1/patches/arm-trusted-firmware/arm-trusted-firmware.hash b/board/t3/t3-gem-o1/patches/arm-trusted-firmware/arm-trusted-firmware.hash
new file mode 100644
index 0000000000..6f02bfbb22
--- /dev/null
+++ b/board/t3/t3-gem-o1/patches/arm-trusted-firmware/arm-trusted-firmware.hash
@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  7efa89e1b4e4106ee05d68e876c8efbb146364d89cfd5d26bf4647b09c08f32b  arm-trusted-firmware-v2.10-git4.tar.gz
diff --git a/board/t3/t3-gem-o1/patches/linux-headers/linux-headers.hash b/board/t3/t3-gem-o1/patches/linux-headers/linux-headers.hash
new file mode 100644
index 0000000000..3c4761fa9c
--- /dev/null
+++ b/board/t3/t3-gem-o1/patches/linux-headers/linux-headers.hash
@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  631d4166e2700c4777fa10edde89015efa37e69ac8f43ca301f29d70419e353d  linux-c0d426f64f22aa7ddba37b5552dd5b2013654990-git4.tar.gz
diff --git a/board/t3/t3-gem-o1/patches/linux/linux.hash b/board/t3/t3-gem-o1/patches/linux/linux.hash
new file mode 100644
index 0000000000..3c4761fa9c
--- /dev/null
+++ b/board/t3/t3-gem-o1/patches/linux/linux.hash
@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  631d4166e2700c4777fa10edde89015efa37e69ac8f43ca301f29d70419e353d  linux-c0d426f64f22aa7ddba37b5552dd5b2013654990-git4.tar.gz
diff --git a/board/t3/t3-gem-o1/patches/optee-os/optee-os.hash b/board/t3/t3-gem-o1/patches/optee-os/optee-os.hash
new file mode 100644
index 0000000000..3f5c58fcff
--- /dev/null
+++ b/board/t3/t3-gem-o1/patches/optee-os/optee-os.hash
@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  9400e16c45bfa45f15585b2c933b86c449e7de05def0ecaaa62a4f38973a3a45  optee-os-4.9.0.tar.gz
diff --git a/board/t3/t3-gem-o1/patches/ti-k3-r5-loader/0001-fix-binman-importlib.patch b/board/t3/t3-gem-o1/patches/ti-k3-r5-loader/0001-fix-binman-importlib.patch
new file mode 100644
index 0000000000..df7ddbd7cb
--- /dev/null
+++ b/board/t3/t3-gem-o1/patches/ti-k3-r5-loader/0001-fix-binman-importlib.patch
@@ -0,0 +1,37 @@
+diff --git a/tools/binman/control.py.orig b/tools/binman/control.py
+index e73c598298..7ce325ec5e 100644
+--- a/tools/binman/control.py
++++ b/tools/binman/control.py
+@@ -13,7 +13,7 @@ except ImportError:  # pragma: no cover
+     # for Python 3.6
+     import importlib_resources
+ import os
+-import pkg_resources
++import importlib.resources
+ import re
+ 
+ import sys
+@@ -96,12 +96,12 @@ def _ReadMissingBlobHelp():
+             msg = ''
+         return tag, msg
+ 
+-    my_data = pkg_resources.resource_string(__name__, 'missing-blob-help')
++    my_data = importlib.resources.files(__name__).joinpath('missing-blob-help').read_text(encoding='utf-8')
+     re_tag = re.compile('^([-a-z0-9]+):$')
+     result = {}
+     tag = None
+     msg = ''
+-    for line in my_data.decode('utf-8').splitlines():
++    for line in my_data.splitlines():
+         if not line.startswith('#'):
+             m_tag = re_tag.match(line)
+             if m_tag:
+@@ -151,7 +151,7 @@ def GetEntryModules(include_testing=True):
+     Returns:
+         Set of paths to entry class filenames
+     """
+-    glob_list = pkg_resources.resource_listdir(__name__, 'etype')
++    glob_list = [f.name for f in importlib.resources.files(__name__).joinpath('etype').iterdir() if f.is_file()]
+     glob_list = [fname for fname in glob_list if fname.endswith('.py')]
+     return set([os.path.splitext(os.path.basename(item))[0]
+                 for item in glob_list
diff --git a/board/t3/t3-gem-o1/patches/ti-k3-r5-loader/ti-k3-r5-loader.hash b/board/t3/t3-gem-o1/patches/ti-k3-r5-loader/ti-k3-r5-loader.hash
new file mode 100644
index 0000000000..592ea66751
--- /dev/null
+++ b/board/t3/t3-gem-o1/patches/ti-k3-r5-loader/ti-k3-r5-loader.hash
@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  4e98496545b7f9955b178d65489624691e0d4ba2687fb507ffa364a9978bb51a  uboot-8b5ae72c281207430fcc58031fe36f40900f7a2d-git4.tar.gz
diff --git a/board/t3/t3-gem-o1/patches/uboot/0001-fix-binman-importlib.patch b/board/t3/t3-gem-o1/patches/uboot/0001-fix-binman-importlib.patch
new file mode 100644
index 0000000000..df7ddbd7cb
--- /dev/null
+++ b/board/t3/t3-gem-o1/patches/uboot/0001-fix-binman-importlib.patch
@@ -0,0 +1,37 @@
+diff --git a/tools/binman/control.py.orig b/tools/binman/control.py
+index e73c598298..7ce325ec5e 100644
+--- a/tools/binman/control.py
++++ b/tools/binman/control.py
+@@ -13,7 +13,7 @@ except ImportError:  # pragma: no cover
+     # for Python 3.6
+     import importlib_resources
+ import os
+-import pkg_resources
++import importlib.resources
+ import re
+ 
+ import sys
+@@ -96,12 +96,12 @@ def _ReadMissingBlobHelp():
+             msg = ''
+         return tag, msg
+ 
+-    my_data = pkg_resources.resource_string(__name__, 'missing-blob-help')
++    my_data = importlib.resources.files(__name__).joinpath('missing-blob-help').read_text(encoding='utf-8')
+     re_tag = re.compile('^([-a-z0-9]+):$')
+     result = {}
+     tag = None
+     msg = ''
+-    for line in my_data.decode('utf-8').splitlines():
++    for line in my_data.splitlines():
+         if not line.startswith('#'):
+             m_tag = re_tag.match(line)
+             if m_tag:
+@@ -151,7 +151,7 @@ def GetEntryModules(include_testing=True):
+     Returns:
+         Set of paths to entry class filenames
+     """
+-    glob_list = pkg_resources.resource_listdir(__name__, 'etype')
++    glob_list = [f.name for f in importlib.resources.files(__name__).joinpath('etype').iterdir() if f.is_file()]
+     glob_list = [fname for fname in glob_list if fname.endswith('.py')]
+     return set([os.path.splitext(os.path.basename(item))[0]
+                 for item in glob_list
diff --git a/board/t3/t3-gem-o1/patches/uboot/uboot.hash b/board/t3/t3-gem-o1/patches/uboot/uboot.hash
new file mode 100644
index 0000000000..592ea66751
--- /dev/null
+++ b/board/t3/t3-gem-o1/patches/uboot/uboot.hash
@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  4e98496545b7f9955b178d65489624691e0d4ba2687fb507ffa364a9978bb51a  uboot-8b5ae72c281207430fcc58031fe36f40900f7a2d-git4.tar.gz
diff --git a/board/t3/t3-gem-o1/post-image.sh b/board/t3/t3-gem-o1/post-image.sh
new file mode 100755
index 0000000000..e09294a113
--- /dev/null
+++ b/board/t3/t3-gem-o1/post-image.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+
+set -e
+
+BOARD_DIR="$(dirname "$0")"
+GENIMAGE_CFG="${BOARD_DIR}/genimage.cfg"
+GENIMAGE_TMP="$(mktemp -d)"
+
+# Copy uEnv.txt to binaries directory so genimage can pack it into FAT
+cp -f "${BOARD_DIR}/uEnv.txt" "${BINARIES_DIR}/uEnv.txt"
+
+trap 'rm -rf "${GENIMAGE_TMP}" "${ROOTPATH_TMP}"' EXIT
+ROOTPATH_TMP="$(mktemp -d)"
+
+${HOST_DIR}/bin/genimage \
+        --rootpath "${ROOTPATH_TMP}" \
+        --tmppath "${GENIMAGE_TMP}" \
+        --inputpath "${BINARIES_DIR}" \
+        --outputpath "${BINARIES_DIR}" \
+        --config "${GENIMAGE_CFG}"
+
+exit $?
diff --git a/board/t3/t3-gem-o1/readme.txt b/board/t3/t3-gem-o1/readme.txt
new file mode 100644
index 0000000000..8ac17e821c
--- /dev/null
+++ b/board/t3/t3-gem-o1/readme.txt
@@ -0,0 +1,35 @@
+T3 Gemstone O1 (AM67A) Buildroot Support
+========================================
+
+How to build
+============
+
+$ make t3_gem_o1_defconfig
+$ make
+
+How to write the SD card
+========================
+
+Once the build process is finished you will have an image
+called "sdcard.img" in the output/images/ directory.
+
+Copy the bootable "sdcard.img" onto an SD card with "dd":
+
+  $ sudo dd if=output/images/sdcard.img of=/dev/sdX bs=1M && sync
+
+Where /dev/sdX is the device node of your SD card.
+
+If you would like use tool with gui, you can use gem-imager.
+- Gem-imager: https://github.com/t3gemstone/gem-imager
+
+Booting the board
+=================
+
+Insert the SD card into the T3 Gemstone O1 board.
+Connect the UART cable to get terminal access.
+Power on the board. The system should boot into Buildroot.
+
+Repositories Used
+=================
+- U-Boot: https://github.com/t3gemstone/u-boot.git (branch: v2025.04-rc3-t3-gem-o1)
+- Linux Kernel: https://github.com/t3gemstone/linux.git (branch: v6.12.24-ti-arm64-r43-t3-gem-o1)
diff --git a/board/t3/t3-gem-o1/rootfs_overlay/etc/init.d/S89firstboot b/board/t3/t3-gem-o1/rootfs_overlay/etc/init.d/S89firstboot
new file mode 100755
index 0000000000..1354cc863f
--- /dev/null
+++ b/board/t3/t3-gem-o1/rootfs_overlay/etc/init.d/S89firstboot
@@ -0,0 +1,50 @@
+#!/bin/sh
+# S89firstboot: Resize root partition and filesystem on first boot via uEnv.txt params
+
+case "$1" in
+  start)
+    if ! grep -q "firstboot=1" /proc/cmdline; then
+        exit 0
+    fi
+
+    printf "\nLooks like system is booting for the first time\n" >/dev/console
+
+    BOOTPART=$(cat /proc/cmdline | tr ' ' '\n' | grep '^bootpart=' | cut -d= -f2)
+    ROOT_DEV=$(cat /proc/cmdline | tr ' ' '\n' | grep '^root=' | cut -d= -f2)
+
+    if [ -z "$BOOTPART" ] || [ -z "$ROOT_DEV" ]; then
+        echo "Error: bootpart or root param missing in cmdline."
+        exit 1
+    fi
+
+    DRIVE=$(echo $ROOT_DEV | sed 's/p[0-9]*$//')
+    PART=$(echo $ROOT_DEV | grep -o '[0-9]*$')
+
+    echo "Expanding root partition on '${DRIVE}'..."
+    parted -m -s "$DRIVE" resizepart "$PART" 100% > /dev/null
+    partprobe "$DRIVE" || true
+
+    echo "Expanding root filesystem on '${ROOT_DEV}'..."
+    resize2fs "$ROOT_DEV"
+
+    echo "Disabling firstboot in uEnv.txt..."
+    boot_mntpoint="/tmp/bootmnt"
+    mkdir -p "$boot_mntpoint"
+
+    if mount "$BOOTPART" "$boot_mntpoint"; then
+        sed -i 's/firstboot=1/firstboot=0/g' "$boot_mntpoint/uEnv.txt"
+        umount "$boot_mntpoint"
+        echo "Operation is successful."
+    else
+        echo "Error: Unable to mount boot partition to disable firstboot"
+    fi
+    ;;
+  stop)
+    ;;
+  *)
+    echo "Usage: $0 {start|stop}"
+    exit 1
+    ;;
+esac
+
+exit 0
diff --git a/board/t3/t3-gem-o1/uEnv.txt b/board/t3/t3-gem-o1/uEnv.txt
new file mode 100644
index 0000000000..f26b624322
--- /dev/null
+++ b/board/t3/t3-gem-o1/uEnv.txt
@@ -0,0 +1,6 @@
+# Environment file for T3 Gemstone O1 to override U-Boot default variables
+rootfstype=ext4
+
+# Override U-boot args to force ext4
+args_eth=setenv bootargs console=${console} ${optargs} root=/dev/mmcblk0p2 rw rootfstype=${rootfstype} bootpart=/dev/mmcblk0p1 firstboot=1 init_fatal_sh=1;
+args_mmc=setenv bootargs console=${console} ${optargs} root=/dev/mmcblk${mmcdev}p2 rw rootfstype=${rootfstype} rootwait bootpart=/dev/mmcblk${mmcdev}p1 firstboot=1 init_fatal_sh=1;
diff --git a/configs/t3_gem_o1_defconfig b/configs/t3_gem_o1_defconfig
new file mode 100644
index 0000000000..d4dd672e4a
--- /dev/null
+++ b/configs/t3_gem_o1_defconfig
@@ -0,0 +1,59 @@
+BR2_aarch64=y
+BR2_cortex_a53=y
+BR2_ROOTFS_POST_IMAGE_SCRIPT="board/t3/t3-gem-o1/post-image.sh"
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_GIT=y
+BR2_LINUX_KERNEL_CUSTOM_REPO_URL="https://github.com/t3gemstone/linux.git"
+BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="02ecef0cb08a6bd123a4f035a296bc824bcfe5b4"
+BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG=y
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="ti/k3-am67a-t3-gem-o1"
+BR2_LINUX_KERNEL_INSTALL_TARGET=y
+BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
+BR2_KERNEL_HEADERS_AS_KERNEL=y
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_12=y
+BR2_TARGET_TI_K3_R5_LOADER=y
+BR2_TARGET_TI_K3_R5_LOADER_CUSTOM_GIT=y
+BR2_TARGET_TI_K3_R5_LOADER_CUSTOM_REPO_URL="https://github.com/t3gemstone/u-boot.git"
+BR2_TARGET_TI_K3_R5_LOADER_CUSTOM_REPO_VERSION="8b5ae72c281207430fcc58031fe36f40900f7a2d"
+BR2_TARGET_TI_K3_R5_LOADER_BOARD_DEFCONFIG="am67a_t3_gem_o1_r5"
+BR2_TARGET_TI_K3_R5_LOADER_USE_DEFCONFIG=y
+BR2_TARGET_UBOOT=y
+BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
+BR2_TARGET_UBOOT_CUSTOM_GIT=y
+BR2_TARGET_UBOOT_CUSTOM_REPO_URL="https://github.com/t3gemstone/u-boot.git"
+BR2_TARGET_UBOOT_CUSTOM_REPO_VERSION="8b5ae72c281207430fcc58031fe36f40900f7a2d"
+BR2_TARGET_UBOOT_BOARD_DEFCONFIG="am67a_t3_gem_o1_a53"
+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_NEEDS_GNUTLS=y
+BR2_TARGET_UBOOT_NEEDS_ATF_BL31=y
+BR2_TARGET_UBOOT_NEEDS_OPTEE_TEE=y
+BR2_TARGET_UBOOT_NEEDS_OPTEE_TEE_RAW_BIN=y
+BR2_TARGET_UBOOT_USE_BINMAN=y
+# BR2_TARGET_UBOOT_FORMAT_BIN is not set
+BR2_TARGET_UBOOT_FORMAT_IMG=y
+BR2_TARGET_UBOOT_SPL=y
+BR2_TARGET_UBOOT_SPL_NAME="tispl.bin"
+BR2_TARGET_TI_K3_BOOT_FIRMWARE=y
+BR2_TARGET_ARM_TRUSTED_FIRMWARE=y
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_VERSION=y
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_VERSION_VALUE="v2.10"
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_PLATFORM="k3"
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_TARGET_BOARD="lite"
+BR2_TARGET_OPTEE_OS=y
+BR2_TARGET_OPTEE_OS_PLATFORM="k3-am62x"
+BR2_TARGET_ROOTFS_EXT2=y
+BR2_TARGET_ROOTFS_EXT2_4=y
+BR2_TARGET_ROOTFS_EXT2_SIZE="256M"
+BR2_PACKAGE_HOST_GENIMAGE=y
+BR2_PACKAGE_HOST_DOSFSTOOLS=y
+BR2_PACKAGE_HOST_MTOOLS=y
+BR2_GLOBAL_PATCH_DIR="board/t3/t3-gem-o1/patches"
+BR2_TARGET_UBOOT_CUSTOM_MAKEOPTS="BINMAN_INDIRS=$(BINARIES_DIR) TEE=$(BINARIES_DIR)/tee-pager_v2.bin"
+BR2_PACKAGE_E2FSPROGS=y
+BR2_PACKAGE_E2FSPROGS_RESIZE2FS=y
+BR2_PACKAGE_PARTED=y
+BR2_ROOTFS_OVERLAY="board/t3/t3-gem-o1/rootfs_overlay"
-- 
2.43.0

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^ permalink raw reply related	[flat|nested] 4+ messages in thread
* Re: [Buildroot] board/t3/t3-gem-o1: add new board
  2026-07-06 18:39 [Buildroot] [PATCH] board/t3/t3-gem-o1: add new board Selman Çetin via buildroot
@ 2026-07-13 14:56 ` dowan gullient via buildroot
  2026-07-19 17:12 ` [Buildroot] [PATCH] " Selman Çetin via buildroot
  1 sibling, 0 replies; 4+ messages in thread
From: dowan gullient via buildroot @ 2026-07-13 14:56 UTC (permalink / raw)
  To: selman.cetin, buildroot

Hello Selman Çetin, thanks for your patch and for this new board !
I have few comments :
> board/t3/t3-gem-o1/patches/ti-k3-r5-loader/0001-fix-binman-importlib.patch
> board/t3/t3-gem-o1/patches/uboot/0001-fix-binman-importlib.patch

These patch files are missing a proper header. A message explaining what 
the patch does and why it is needed should be added in the header 
commentary of each patch, along with a Signed-off-by statement. - 
[Source: 
https://buildroot.org/downloads/manual/manual.html#_format_and_licensing_of_the_package_patches]

> +trap 'rm -rf "${GENIMAGE_TMP}" "${ROOTPATH_TMP}"' EXIT
> +ROOTPATH_TMP="$(mktemp -d)"
(You might want to move the `ROOTPATH_TMP` assignment before the `trap` 
to ensure the cleanup trap works correctly but that's just a detail, 
it's working this way too.)

Also, when adding a new board, you should add an entry for yourself in 
the DEVELOPERS file so you can be notified of build failures or 
maintenance issues on this board. - [Source: 
https://buildroot.org/downloads/manual/manual.html#DEVELOPERS]


Apart from that, the patch looks good to me.

Best regards, Gullient.

Assisted by Buildroot Review Assistant (used openrouter).

_______________________________________________
buildroot mailing list
buildroot@buildroot.org
https://lists.buildroot.org/mailman/listinfo/buildroot

^ permalink raw reply	[flat|nested] 4+ messages in thread
* [Buildroot] [PATCH] board/t3/t3-gem-o1: add new board
  2026-07-06 18:39 [Buildroot] [PATCH] board/t3/t3-gem-o1: add new board Selman Çetin via buildroot
  2026-07-13 14:56 ` [Buildroot] " dowan gullient via buildroot
@ 2026-07-19 17:12 ` Selman Çetin via buildroot
  2026-08-02  8:29   ` Julien Olivain via buildroot
  1 sibling, 1 reply; 4+ messages in thread
From: Selman Çetin via buildroot @ 2026-07-19 17:12 UTC (permalink / raw)
  To: buildroot; +Cc: support, selman.cetin

This commit adds support for the T3-GEM-O1

More information about the board can be found at:
https://t3gemstone.org/en

Documentation and usage guides are available at:
https://docs.t3gemstone.org/en/introduction

The official GitHub repository can be found at:
https://github.com/t3gemstone

Hardware Specifications:
- Processor: Quad-core ARM Cortex-A53 @1.4 GHz with GPU, DSP and AI accelerators
- RAM: 4 GB LPDDR4
- Storage: 32 GB eMMC, MicroSD slot (SDR104), M.2 2280 NVMe SSD Port
- Connectivity: Wi-Fi 802.11n & Bluetooth 5.1 (WL1835MOD)
- Network: Gigabit Ethernet
- USB: 2x USB 3.0 Type-A, 1x USB 2.0 Type-A, 1x USB 2.0 Type-C (Device + PD)
- Display/Camera: 1x HDMI, 1x 4-lane MIPI display, 1x 4-lane MIPI camera
- Peripherals: CAN FD, 40-pin GPIO Header, 10-pin JTAG, RTC (Maxim DS1340)
- Sensors: ICM-20948 (9-Axis IMU), BMP390 (Barometric), HDC2010 (Humidity/Temp)
- Power: USB Type-C (5-9V/3A) or DC Jack (5-12V/5A)

Signed-off-by: Selman Çetin <selman.cetin@t3gemstone.org>
---
 DEVELOPERS                                    |  4 ++
 board/t3/t3-gem-o1/genimage.cfg               | 30 ++++++++++
 .../arm-trusted-firmware.hash                 |  2 +
 .../patches/linux-headers/linux-headers.hash  |  2 +
 board/t3/t3-gem-o1/patches/linux/linux.hash   |  2 +
 .../t3-gem-o1/patches/optee-os/optee-os.hash  |  2 +
 .../0001-fix-binman-importlib.patch           | 49 +++++++++++++++
 .../ti-k3-r5-loader/ti-k3-r5-loader.hash      |  2 +
 .../uboot/0001-fix-binman-importlib.patch     | 49 +++++++++++++++
 board/t3/t3-gem-o1/patches/uboot/uboot.hash   |  2 +
 board/t3/t3-gem-o1/post-image.sh              | 21 +++++++
 board/t3/t3-gem-o1/readme.txt                 | 35 +++++++++++
 .../rootfs_overlay/etc/init.d/S89firstboot    | 50 ++++++++++++++++
 board/t3/t3-gem-o1/uEnv.txt                   |  6 ++
 configs/t3_gem_o1_defconfig                   | 59 +++++++++++++++++++
 15 files changed, 315 insertions(+)
 create mode 100644 board/t3/t3-gem-o1/genimage.cfg
 create mode 100644 board/t3/t3-gem-o1/patches/arm-trusted-firmware/arm-trusted-firmware.hash
 create mode 100644 board/t3/t3-gem-o1/patches/linux-headers/linux-headers.hash
 create mode 100644 board/t3/t3-gem-o1/patches/linux/linux.hash
 create mode 100644 board/t3/t3-gem-o1/patches/optee-os/optee-os.hash
 create mode 100644 board/t3/t3-gem-o1/patches/ti-k3-r5-loader/0001-fix-binman-importlib.patch
 create mode 100644 board/t3/t3-gem-o1/patches/ti-k3-r5-loader/ti-k3-r5-loader.hash
 create mode 100644 board/t3/t3-gem-o1/patches/uboot/0001-fix-binman-importlib.patch
 create mode 100644 board/t3/t3-gem-o1/patches/uboot/uboot.hash
 create mode 100755 board/t3/t3-gem-o1/post-image.sh
 create mode 100644 board/t3/t3-gem-o1/readme.txt
 create mode 100755 board/t3/t3-gem-o1/rootfs_overlay/etc/init.d/S89firstboot
 create mode 100644 board/t3/t3-gem-o1/uEnv.txt
 create mode 100644 configs/t3_gem_o1_defconfig

diff --git a/DEVELOPERS b/DEVELOPERS
index c6c228ae91..05c9a000d8 100644
--- a/DEVELOPERS
+++ b/DEVELOPERS
@@ -2996,6 +2996,10 @@ F:	package/python-flask-login/
 F:	package/qt5/qt5charts/
 F:	package/wlr-randr/
 
+N:	Selman Çetin <selman.cetin@t3gemstone.org>
+F:	board/t3/t3-gem-o1/
+F:	configs/t3_gem_o1_defconfig
+
 N:	Semyon Kolganov <semenak94@mail.ru>
 F:	package/fmt/
 F:	package/lua-resty-http/
diff --git a/board/t3/t3-gem-o1/genimage.cfg b/board/t3/t3-gem-o1/genimage.cfg
new file mode 100644
index 0000000000..3647706542
--- /dev/null
+++ b/board/t3/t3-gem-o1/genimage.cfg
@@ -0,0 +1,30 @@
+image boot.vfat {
+	vfat {
+		files = {
+			"tiboot3.bin",
+			"tispl.bin",
+			"u-boot.img",
+			"Image",
+			"k3-am67a-t3-gem-o1.dtb",
+			"uEnv.txt"
+		}
+	}
+	size = 64M
+}
+
+image sdcard.img {
+	hdimage {
+	}
+
+	partition boot {
+		partition-type = 0xC
+		bootable = "true"
+		image = "boot.vfat"
+		offset = 4M
+	}
+
+	partition rootfs {
+		partition-type = 0x83
+		image = "rootfs.ext4"
+	}
+}
diff --git a/board/t3/t3-gem-o1/patches/arm-trusted-firmware/arm-trusted-firmware.hash b/board/t3/t3-gem-o1/patches/arm-trusted-firmware/arm-trusted-firmware.hash
new file mode 100644
index 0000000000..6f02bfbb22
--- /dev/null
+++ b/board/t3/t3-gem-o1/patches/arm-trusted-firmware/arm-trusted-firmware.hash
@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  7efa89e1b4e4106ee05d68e876c8efbb146364d89cfd5d26bf4647b09c08f32b  arm-trusted-firmware-v2.10-git4.tar.gz
diff --git a/board/t3/t3-gem-o1/patches/linux-headers/linux-headers.hash b/board/t3/t3-gem-o1/patches/linux-headers/linux-headers.hash
new file mode 100644
index 0000000000..3c4761fa9c
--- /dev/null
+++ b/board/t3/t3-gem-o1/patches/linux-headers/linux-headers.hash
@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  631d4166e2700c4777fa10edde89015efa37e69ac8f43ca301f29d70419e353d  linux-c0d426f64f22aa7ddba37b5552dd5b2013654990-git4.tar.gz
diff --git a/board/t3/t3-gem-o1/patches/linux/linux.hash b/board/t3/t3-gem-o1/patches/linux/linux.hash
new file mode 100644
index 0000000000..3c4761fa9c
--- /dev/null
+++ b/board/t3/t3-gem-o1/patches/linux/linux.hash
@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  631d4166e2700c4777fa10edde89015efa37e69ac8f43ca301f29d70419e353d  linux-c0d426f64f22aa7ddba37b5552dd5b2013654990-git4.tar.gz
diff --git a/board/t3/t3-gem-o1/patches/optee-os/optee-os.hash b/board/t3/t3-gem-o1/patches/optee-os/optee-os.hash
new file mode 100644
index 0000000000..3f5c58fcff
--- /dev/null
+++ b/board/t3/t3-gem-o1/patches/optee-os/optee-os.hash
@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  9400e16c45bfa45f15585b2c933b86c449e7de05def0ecaaa62a4f38973a3a45  optee-os-4.9.0.tar.gz
diff --git a/board/t3/t3-gem-o1/patches/ti-k3-r5-loader/0001-fix-binman-importlib.patch b/board/t3/t3-gem-o1/patches/ti-k3-r5-loader/0001-fix-binman-importlib.patch
new file mode 100644
index 0000000000..67324956d7
--- /dev/null
+++ b/board/t3/t3-gem-o1/patches/ti-k3-r5-loader/0001-fix-binman-importlib.patch
@@ -0,0 +1,49 @@
+Fix binman importlib usage for modern Python
+
+The binman `control.py` used `pkg_resources.resource_string()` and
+`pkg_resources.resource_listdir()` which are not ideal on newer Python
+versions. Replace usage with the `importlib.resources` API which is the
+recommended approach in recent Python releases. This avoids runtime
+errors when `pkg_resources` is not available or when the packaged
+resources are accessed differently.
+
+Signed-off-by: Selman Çetin <selman.cetin@t3gemstone.org>
+
+---
+diff --git a/tools/binman/control.py.orig b/tools/binman/control.py
+index e73c598298..7ce325ec5e 100644
+--- a/tools/binman/control.py
++++ b/tools/binman/control.py
+@@ -13,7 +13,7 @@ except ImportError:  # pragma: no cover
+     # for Python 3.6
+     import importlib_resources
+ import os
+-import pkg_resources
++import importlib.resources
+ import re
+ 
+ import sys
+@@ -96,12 +96,12 @@ def _ReadMissingBlobHelp():
+             msg = ''
+         return tag, msg
+ 
+-    my_data = pkg_resources.resource_string(__name__, 'missing-blob-help')
++    my_data = importlib.resources.files(__name__).joinpath('missing-blob-help').read_text(encoding='utf-8')
+     re_tag = re.compile('^([-a-z0-9]+):$')
+     result = {}
+     tag = None
+     msg = ''
+-    for line in my_data.decode('utf-8').splitlines():
++    for line in my_data.splitlines():
+         if not line.startswith('#'):
+             m_tag = re_tag.match(line)
+             if m_tag:
+@@ -151,7 +151,7 @@ def GetEntryModules(include_testing=True):
+     Returns:
+         Set of paths to entry class filenames
+     """
+-    glob_list = pkg_resources.resource_listdir(__name__, 'etype')
++    glob_list = [f.name for f in importlib.resources.files(__name__).joinpath('etype').iterdir() if f.is_file()]
+     glob_list = [fname for fname in glob_list if fname.endswith('.py')]
+     return set([os.path.splitext(os.path.basename(item))[0]
+                 for item in glob_list
diff --git a/board/t3/t3-gem-o1/patches/ti-k3-r5-loader/ti-k3-r5-loader.hash b/board/t3/t3-gem-o1/patches/ti-k3-r5-loader/ti-k3-r5-loader.hash
new file mode 100644
index 0000000000..592ea66751
--- /dev/null
+++ b/board/t3/t3-gem-o1/patches/ti-k3-r5-loader/ti-k3-r5-loader.hash
@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  4e98496545b7f9955b178d65489624691e0d4ba2687fb507ffa364a9978bb51a  uboot-8b5ae72c281207430fcc58031fe36f40900f7a2d-git4.tar.gz
diff --git a/board/t3/t3-gem-o1/patches/uboot/0001-fix-binman-importlib.patch b/board/t3/t3-gem-o1/patches/uboot/0001-fix-binman-importlib.patch
new file mode 100644
index 0000000000..67324956d7
--- /dev/null
+++ b/board/t3/t3-gem-o1/patches/uboot/0001-fix-binman-importlib.patch
@@ -0,0 +1,49 @@
+Fix binman importlib usage for modern Python
+
+The binman `control.py` used `pkg_resources.resource_string()` and
+`pkg_resources.resource_listdir()` which are not ideal on newer Python
+versions. Replace usage with the `importlib.resources` API which is the
+recommended approach in recent Python releases. This avoids runtime
+errors when `pkg_resources` is not available or when the packaged
+resources are accessed differently.
+
+Signed-off-by: Selman Çetin <selman.cetin@t3gemstone.org>
+
+---
+diff --git a/tools/binman/control.py.orig b/tools/binman/control.py
+index e73c598298..7ce325ec5e 100644
+--- a/tools/binman/control.py
++++ b/tools/binman/control.py
+@@ -13,7 +13,7 @@ except ImportError:  # pragma: no cover
+     # for Python 3.6
+     import importlib_resources
+ import os
+-import pkg_resources
++import importlib.resources
+ import re
+ 
+ import sys
+@@ -96,12 +96,12 @@ def _ReadMissingBlobHelp():
+             msg = ''
+         return tag, msg
+ 
+-    my_data = pkg_resources.resource_string(__name__, 'missing-blob-help')
++    my_data = importlib.resources.files(__name__).joinpath('missing-blob-help').read_text(encoding='utf-8')
+     re_tag = re.compile('^([-a-z0-9]+):$')
+     result = {}
+     tag = None
+     msg = ''
+-    for line in my_data.decode('utf-8').splitlines():
++    for line in my_data.splitlines():
+         if not line.startswith('#'):
+             m_tag = re_tag.match(line)
+             if m_tag:
+@@ -151,7 +151,7 @@ def GetEntryModules(include_testing=True):
+     Returns:
+         Set of paths to entry class filenames
+     """
+-    glob_list = pkg_resources.resource_listdir(__name__, 'etype')
++    glob_list = [f.name for f in importlib.resources.files(__name__).joinpath('etype').iterdir() if f.is_file()]
+     glob_list = [fname for fname in glob_list if fname.endswith('.py')]
+     return set([os.path.splitext(os.path.basename(item))[0]
+                 for item in glob_list
diff --git a/board/t3/t3-gem-o1/patches/uboot/uboot.hash b/board/t3/t3-gem-o1/patches/uboot/uboot.hash
new file mode 100644
index 0000000000..592ea66751
--- /dev/null
+++ b/board/t3/t3-gem-o1/patches/uboot/uboot.hash
@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  4e98496545b7f9955b178d65489624691e0d4ba2687fb507ffa364a9978bb51a  uboot-8b5ae72c281207430fcc58031fe36f40900f7a2d-git4.tar.gz
diff --git a/board/t3/t3-gem-o1/post-image.sh b/board/t3/t3-gem-o1/post-image.sh
new file mode 100755
index 0000000000..9747f4ef90
--- /dev/null
+++ b/board/t3/t3-gem-o1/post-image.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+set -e
+
+BOARD_DIR="$(dirname "$0")"
+GENIMAGE_CFG="${BOARD_DIR}/genimage.cfg"
+GENIMAGE_TMP="$(mktemp -d)"
+ROOTPATH_TMP="$(mktemp -d)"
+
+# Copy uEnv.txt to binaries directory so genimage can pack it into FAT
+cp -f "${BOARD_DIR}/uEnv.txt" "${BINARIES_DIR}/uEnv.txt"
+
+trap 'rm -rf "${GENIMAGE_TMP}" "${ROOTPATH_TMP}"' EXIT
+
+${HOST_DIR}/bin/genimage \
+        --rootpath "${ROOTPATH_TMP}" \
+        --tmppath "${GENIMAGE_TMP}" \
+        --inputpath "${BINARIES_DIR}" \
+        --outputpath "${BINARIES_DIR}" \
+        --config "${GENIMAGE_CFG}"
+
+exit $?
diff --git a/board/t3/t3-gem-o1/readme.txt b/board/t3/t3-gem-o1/readme.txt
new file mode 100644
index 0000000000..8ac17e821c
--- /dev/null
+++ b/board/t3/t3-gem-o1/readme.txt
@@ -0,0 +1,35 @@
+T3 Gemstone O1 (AM67A) Buildroot Support
+========================================
+
+How to build
+============
+
+$ make t3_gem_o1_defconfig
+$ make
+
+How to write the SD card
+========================
+
+Once the build process is finished you will have an image
+called "sdcard.img" in the output/images/ directory.
+
+Copy the bootable "sdcard.img" onto an SD card with "dd":
+
+  $ sudo dd if=output/images/sdcard.img of=/dev/sdX bs=1M && sync
+
+Where /dev/sdX is the device node of your SD card.
+
+If you would like use tool with gui, you can use gem-imager.
+- Gem-imager: https://github.com/t3gemstone/gem-imager
+
+Booting the board
+=================
+
+Insert the SD card into the T3 Gemstone O1 board.
+Connect the UART cable to get terminal access.
+Power on the board. The system should boot into Buildroot.
+
+Repositories Used
+=================
+- U-Boot: https://github.com/t3gemstone/u-boot.git (branch: v2025.04-rc3-t3-gem-o1)
+- Linux Kernel: https://github.com/t3gemstone/linux.git (branch: v6.12.24-ti-arm64-r43-t3-gem-o1)
diff --git a/board/t3/t3-gem-o1/rootfs_overlay/etc/init.d/S89firstboot b/board/t3/t3-gem-o1/rootfs_overlay/etc/init.d/S89firstboot
new file mode 100755
index 0000000000..1354cc863f
--- /dev/null
+++ b/board/t3/t3-gem-o1/rootfs_overlay/etc/init.d/S89firstboot
@@ -0,0 +1,50 @@
+#!/bin/sh
+# S89firstboot: Resize root partition and filesystem on first boot via uEnv.txt params
+
+case "$1" in
+  start)
+    if ! grep -q "firstboot=1" /proc/cmdline; then
+        exit 0
+    fi
+
+    printf "\nLooks like system is booting for the first time\n" >/dev/console
+
+    BOOTPART=$(cat /proc/cmdline | tr ' ' '\n' | grep '^bootpart=' | cut -d= -f2)
+    ROOT_DEV=$(cat /proc/cmdline | tr ' ' '\n' | grep '^root=' | cut -d= -f2)
+
+    if [ -z "$BOOTPART" ] || [ -z "$ROOT_DEV" ]; then
+        echo "Error: bootpart or root param missing in cmdline."
+        exit 1
+    fi
+
+    DRIVE=$(echo $ROOT_DEV | sed 's/p[0-9]*$//')
+    PART=$(echo $ROOT_DEV | grep -o '[0-9]*$')
+
+    echo "Expanding root partition on '${DRIVE}'..."
+    parted -m -s "$DRIVE" resizepart "$PART" 100% > /dev/null
+    partprobe "$DRIVE" || true
+
+    echo "Expanding root filesystem on '${ROOT_DEV}'..."
+    resize2fs "$ROOT_DEV"
+
+    echo "Disabling firstboot in uEnv.txt..."
+    boot_mntpoint="/tmp/bootmnt"
+    mkdir -p "$boot_mntpoint"
+
+    if mount "$BOOTPART" "$boot_mntpoint"; then
+        sed -i 's/firstboot=1/firstboot=0/g' "$boot_mntpoint/uEnv.txt"
+        umount "$boot_mntpoint"
+        echo "Operation is successful."
+    else
+        echo "Error: Unable to mount boot partition to disable firstboot"
+    fi
+    ;;
+  stop)
+    ;;
+  *)
+    echo "Usage: $0 {start|stop}"
+    exit 1
+    ;;
+esac
+
+exit 0
diff --git a/board/t3/t3-gem-o1/uEnv.txt b/board/t3/t3-gem-o1/uEnv.txt
new file mode 100644
index 0000000000..f26b624322
--- /dev/null
+++ b/board/t3/t3-gem-o1/uEnv.txt
@@ -0,0 +1,6 @@
+# Environment file for T3 Gemstone O1 to override U-Boot default variables
+rootfstype=ext4
+
+# Override U-boot args to force ext4
+args_eth=setenv bootargs console=${console} ${optargs} root=/dev/mmcblk0p2 rw rootfstype=${rootfstype} bootpart=/dev/mmcblk0p1 firstboot=1 init_fatal_sh=1;
+args_mmc=setenv bootargs console=${console} ${optargs} root=/dev/mmcblk${mmcdev}p2 rw rootfstype=${rootfstype} rootwait bootpart=/dev/mmcblk${mmcdev}p1 firstboot=1 init_fatal_sh=1;
diff --git a/configs/t3_gem_o1_defconfig b/configs/t3_gem_o1_defconfig
new file mode 100644
index 0000000000..d4dd672e4a
--- /dev/null
+++ b/configs/t3_gem_o1_defconfig
@@ -0,0 +1,59 @@
+BR2_aarch64=y
+BR2_cortex_a53=y
+BR2_ROOTFS_POST_IMAGE_SCRIPT="board/t3/t3-gem-o1/post-image.sh"
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_GIT=y
+BR2_LINUX_KERNEL_CUSTOM_REPO_URL="https://github.com/t3gemstone/linux.git"
+BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="02ecef0cb08a6bd123a4f035a296bc824bcfe5b4"
+BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG=y
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="ti/k3-am67a-t3-gem-o1"
+BR2_LINUX_KERNEL_INSTALL_TARGET=y
+BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
+BR2_KERNEL_HEADERS_AS_KERNEL=y
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_12=y
+BR2_TARGET_TI_K3_R5_LOADER=y
+BR2_TARGET_TI_K3_R5_LOADER_CUSTOM_GIT=y
+BR2_TARGET_TI_K3_R5_LOADER_CUSTOM_REPO_URL="https://github.com/t3gemstone/u-boot.git"
+BR2_TARGET_TI_K3_R5_LOADER_CUSTOM_REPO_VERSION="8b5ae72c281207430fcc58031fe36f40900f7a2d"
+BR2_TARGET_TI_K3_R5_LOADER_BOARD_DEFCONFIG="am67a_t3_gem_o1_r5"
+BR2_TARGET_TI_K3_R5_LOADER_USE_DEFCONFIG=y
+BR2_TARGET_UBOOT=y
+BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
+BR2_TARGET_UBOOT_CUSTOM_GIT=y
+BR2_TARGET_UBOOT_CUSTOM_REPO_URL="https://github.com/t3gemstone/u-boot.git"
+BR2_TARGET_UBOOT_CUSTOM_REPO_VERSION="8b5ae72c281207430fcc58031fe36f40900f7a2d"
+BR2_TARGET_UBOOT_BOARD_DEFCONFIG="am67a_t3_gem_o1_a53"
+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_NEEDS_GNUTLS=y
+BR2_TARGET_UBOOT_NEEDS_ATF_BL31=y
+BR2_TARGET_UBOOT_NEEDS_OPTEE_TEE=y
+BR2_TARGET_UBOOT_NEEDS_OPTEE_TEE_RAW_BIN=y
+BR2_TARGET_UBOOT_USE_BINMAN=y
+# BR2_TARGET_UBOOT_FORMAT_BIN is not set
+BR2_TARGET_UBOOT_FORMAT_IMG=y
+BR2_TARGET_UBOOT_SPL=y
+BR2_TARGET_UBOOT_SPL_NAME="tispl.bin"
+BR2_TARGET_TI_K3_BOOT_FIRMWARE=y
+BR2_TARGET_ARM_TRUSTED_FIRMWARE=y
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_VERSION=y
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_VERSION_VALUE="v2.10"
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_PLATFORM="k3"
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_TARGET_BOARD="lite"
+BR2_TARGET_OPTEE_OS=y
+BR2_TARGET_OPTEE_OS_PLATFORM="k3-am62x"
+BR2_TARGET_ROOTFS_EXT2=y
+BR2_TARGET_ROOTFS_EXT2_4=y
+BR2_TARGET_ROOTFS_EXT2_SIZE="256M"
+BR2_PACKAGE_HOST_GENIMAGE=y
+BR2_PACKAGE_HOST_DOSFSTOOLS=y
+BR2_PACKAGE_HOST_MTOOLS=y
+BR2_GLOBAL_PATCH_DIR="board/t3/t3-gem-o1/patches"
+BR2_TARGET_UBOOT_CUSTOM_MAKEOPTS="BINMAN_INDIRS=$(BINARIES_DIR) TEE=$(BINARIES_DIR)/tee-pager_v2.bin"
+BR2_PACKAGE_E2FSPROGS=y
+BR2_PACKAGE_E2FSPROGS_RESIZE2FS=y
+BR2_PACKAGE_PARTED=y
+BR2_ROOTFS_OVERLAY="board/t3/t3-gem-o1/rootfs_overlay"
-- 
2.43.0

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^ permalink raw reply related	[flat|nested] 4+ messages in thread
* Re: [Buildroot] [PATCH] board/t3/t3-gem-o1: add new board
  2026-07-19 17:12 ` [Buildroot] [PATCH] " Selman Çetin via buildroot
@ 2026-08-02  8:29   ` Julien Olivain via buildroot
  0 siblings, 0 replies; 4+ messages in thread
From: Julien Olivain via buildroot @ 2026-08-02  8:29 UTC (permalink / raw)
  To: Selman Çetin; +Cc: buildroot, support

Hi Selman,

Thanks for the patch.  I have several comments.

As a general comment, this series generates sereval check-package
errors. Before sending patches, please make sure to run:
"utils/docker-run make check-package"
and fix all errors. See:
https://nightly.buildroot.org/manual.html#_preparing_a_patch_series

Also, this patch should have been marked as a "v2" with a small
description what changed since the previous submission. See:
https://nightly.buildroot.org/manual.html#_patch_revision_changelog

Please mark you next submission as "v3".

See below for my other comments.

On 19/07/2026 19:12, Selman Çetin via buildroot wrote:
> This commit adds support for the T3-GEM-O1
> 
> More information about the board can be found at:
> https://t3gemstone.org/en
> 
> Documentation and usage guides are available at:
> https://docs.t3gemstone.org/en/introduction
> 
> The official GitHub repository can be found at:
> https://github.com/t3gemstone
> 
> Hardware Specifications:
> - Processor: Quad-core ARM Cortex-A53 @1.4 GHz with GPU, DSP and AI 
> accelerators
> - RAM: 4 GB LPDDR4
> - Storage: 32 GB eMMC, MicroSD slot (SDR104), M.2 2280 NVMe SSD Port
> - Connectivity: Wi-Fi 802.11n & Bluetooth 5.1 (WL1835MOD)
> - Network: Gigabit Ethernet
> - USB: 2x USB 3.0 Type-A, 1x USB 2.0 Type-A, 1x USB 2.0 Type-C (Device 
> + PD)
> - Display/Camera: 1x HDMI, 1x 4-lane MIPI display, 1x 4-lane MIPI 
> camera
> - Peripherals: CAN FD, 40-pin GPIO Header, 10-pin JTAG, RTC (Maxim 
> DS1340)
> - Sensors: ICM-20948 (9-Axis IMU), BMP390 (Barometric), HDC2010 
> (Humidity/Temp)
> - Power: USB Type-C (5-9V/3A) or DC Jack (5-12V/5A)
> 
> Signed-off-by: Selman Çetin <selman.cetin@t3gemstone.org>
> ---
[...]
> diff --git 
> a/board/t3/t3-gem-o1/patches/linux-headers/linux-headers.hash 
> b/board/t3/t3-gem-o1/patches/linux-headers/linux-headers.hash
> new file mode 100644
> index 0000000000..3c4761fa9c
> --- /dev/null
> +++ b/board/t3/t3-gem-o1/patches/linux-headers/linux-headers.hash

Since new defconfigs should use an external toolchain, this
linux-headers.hash file is not needed. Could you remove it
please?

See also my comment in the defconfig for the external
toolchain.

> @@ -0,0 +1,2 @@
> +# Locally calculated
> +sha256  
> 631d4166e2700c4777fa10edde89015efa37e69ac8f43ca301f29d70419e353d  
> linux-c0d426f64f22aa7ddba37b5552dd5b2013654990-git4.tar.gz
> diff --git a/board/t3/t3-gem-o1/patches/linux/linux.hash 
> b/board/t3/t3-gem-o1/patches/linux/linux.hash
> new file mode 100644
> index 0000000000..3c4761fa9c
> --- /dev/null
> +++ b/board/t3/t3-gem-o1/patches/linux/linux.hash
> @@ -0,0 +1,2 @@
> +# Locally calculated
> +sha256  
> 631d4166e2700c4777fa10edde89015efa37e69ac8f43ca301f29d70419e353d  
> linux-c0d426f64f22aa7ddba37b5552dd5b2013654990-git4.tar.gz
> diff --git a/board/t3/t3-gem-o1/patches/optee-os/optee-os.hash 
> b/board/t3/t3-gem-o1/patches/optee-os/optee-os.hash
> new file mode 100644
> index 0000000000..3f5c58fcff
> --- /dev/null
> +++ b/board/t3/t3-gem-o1/patches/optee-os/optee-os.hash
> @@ -0,0 +1,2 @@
> +# Locally calculated
> +sha256  
> 9400e16c45bfa45f15585b2c933b86c449e7de05def0ecaaa62a4f38973a3a45  
> optee-os-4.9.0.tar.gz
> diff --git 
> a/board/t3/t3-gem-o1/patches/ti-k3-r5-loader/0001-fix-binman-importlib.patch 
> b/board/t3/t3-gem-o1/patches/ti-k3-r5-loader/0001-fix-binman-importlib.patch
> new file mode 100644
> index 0000000000..67324956d7
> --- /dev/null
> +++ 
> b/board/t3/t3-gem-o1/patches/ti-k3-r5-loader/0001-fix-binman-importlib.patch
> @@ -0,0 +1,49 @@
> +Fix binman importlib usage for modern Python
> +
> +The binman `control.py` used `pkg_resources.resource_string()` and
> +`pkg_resources.resource_listdir()` which are not ideal on newer Python
> +versions. Replace usage with the `importlib.resources` API which is 
> the
> +recommended approach in recent Python releases. This avoids runtime
> +errors when `pkg_resources` is not available or when the packaged
> +resources are accessed differently.
> +
> +Signed-off-by: Selman Çetin <selman.cetin@t3gemstone.org>

The patch you add in Buildroot should be formatted with
"git format-patch -N". See:
https://nightly.buildroot.org/manual.html#_within_buildroot

The "Upstream:" tag is also missing. Since a similar patch was
accepted in u-boot upstream, you could probably use it and add:

Upstream: 
https://source.denx.de/u-boot/u-boot/-/commit/538719cb6a77934d069e0e64f264457a59a9ebfc

Could you use the upstream patch, format it with git and add
the Upstream tag, please?

> +
> +---
> +diff --git a/tools/binman/control.py.orig b/tools/binman/control.py
> +index e73c598298..7ce325ec5e 100644
> +--- a/tools/binman/control.py
> ++++ b/tools/binman/control.py
> +@@ -13,7 +13,7 @@ except ImportError:  # pragma: no cover
> +     # for Python 3.6
> +     import importlib_resources
> + import os
> +-import pkg_resources
> ++import importlib.resources
> + import re
> +
> + import sys
> +@@ -96,12 +96,12 @@ def _ReadMissingBlobHelp():
> +             msg = ''
> +         return tag, msg
> +
> +-    my_data = pkg_resources.resource_string(__name__, 
> 'missing-blob-help')
> ++    my_data = 
> importlib.resources.files(__name__).joinpath('missing-blob-help').read_text(encoding='utf-8')
> +     re_tag = re.compile('^([-a-z0-9]+):$')
> +     result = {}
> +     tag = None
> +     msg = ''
> +-    for line in my_data.decode('utf-8').splitlines():
> ++    for line in my_data.splitlines():
> +         if not line.startswith('#'):
> +             m_tag = re_tag.match(line)
> +             if m_tag:
> +@@ -151,7 +151,7 @@ def GetEntryModules(include_testing=True):
> +     Returns:
> +         Set of paths to entry class filenames
> +     """
> +-    glob_list = pkg_resources.resource_listdir(__name__, 'etype')
> ++    glob_list = [f.name for f in 
> importlib.resources.files(__name__).joinpath('etype').iterdir() if 
> f.is_file()]
> +     glob_list = [fname for fname in glob_list if 
> fname.endswith('.py')]
> +     return set([os.path.splitext(os.path.basename(item))[0]
> +                 for item in glob_list
[...]
> diff --git a/board/t3/t3-gem-o1/post-image.sh 
> b/board/t3/t3-gem-o1/post-image.sh
> new file mode 100755
> index 0000000000..9747f4ef90
> --- /dev/null
> +++ b/board/t3/t3-gem-o1/post-image.sh
> @@ -0,0 +1,21 @@
> +#!/bin/bash

Could you change the interpreter to:
#!/bin/sh
Bash is not really needed in this script

> +set -e
> +
> +BOARD_DIR="$(dirname "$0")"
> +GENIMAGE_CFG="${BOARD_DIR}/genimage.cfg"
> +GENIMAGE_TMP="$(mktemp -d)"
> +ROOTPATH_TMP="$(mktemp -d)"
> +
> +# Copy uEnv.txt to binaries directory so genimage can pack it into FAT
> +cp -f "${BOARD_DIR}/uEnv.txt" "${BINARIES_DIR}/uEnv.txt"
> +
> +trap 'rm -rf "${GENIMAGE_TMP}" "${ROOTPATH_TMP}"' EXIT
> +
> +${HOST_DIR}/bin/genimage \

ShellCheck reports a warning here. This should preferably
quoted as:

"${HOST_DIR}"/bin/genimage \

> +        --rootpath "${ROOTPATH_TMP}" \
> +        --tmppath "${GENIMAGE_TMP}" \
> +        --inputpath "${BINARIES_DIR}" \
> +        --outputpath "${BINARIES_DIR}" \
> +        --config "${GENIMAGE_CFG}"
> +
> +exit $?
> diff --git a/board/t3/t3-gem-o1/readme.txt 
> b/board/t3/t3-gem-o1/readme.txt
> new file mode 100644
> index 0000000000..8ac17e821c
> --- /dev/null
> +++ b/board/t3/t3-gem-o1/readme.txt
> @@ -0,0 +1,35 @@
> +T3 Gemstone O1 (AM67A) Buildroot Support
> +========================================
> +
> +How to build
> +============
> +
> +$ make t3_gem_o1_defconfig
> +$ make
> +
> +How to write the SD card
> +========================
> +
> +Once the build process is finished you will have an image
> +called "sdcard.img" in the output/images/ directory.
> +
> +Copy the bootable "sdcard.img" onto an SD card with "dd":
> +
> +  $ sudo dd if=output/images/sdcard.img of=/dev/sdX bs=1M && sync
> +
> +Where /dev/sdX is the device node of your SD card.
> +
> +If you would like use tool with gui, you can use gem-imager.
> +- Gem-imager: https://github.com/t3gemstone/gem-imager
> +
> +Booting the board
> +=================
> +
> +Insert the SD card into the T3 Gemstone O1 board.
> +Connect the UART cable to get terminal access.
> +Power on the board. The system should boot into Buildroot.
> +
> +Repositories Used
> +=================
> +- U-Boot: https://github.com/t3gemstone/u-boot.git (branch: 
> v2025.04-rc3-t3-gem-o1)
> +- Linux Kernel: https://github.com/t3gemstone/linux.git (branch: 
> v6.12.24-ti-arm64-r43-t3-gem-o1)

I discourage to put branches or tags names in the readme.txt. They
are easy to forget when the defconfig gets updated. A user can check
the defconfig to see what version is used.

Could you remove the branch names, please?

Or alternatively, you could give a hint which branches should be used
for future updates. For example (use branches: *-t3-gem-o1).

> diff --git a/board/t3/t3-gem-o1/rootfs_overlay/etc/init.d/S89firstboot 
> b/board/t3/t3-gem-o1/rootfs_overlay/etc/init.d/S89firstboot
> new file mode 100755
> index 0000000000..1354cc863f
> --- /dev/null
> +++ b/board/t3/t3-gem-o1/rootfs_overlay/etc/init.d/S89firstboot

Buildroot in-tree defconfigs should not contain customization other
than those needed to reach the login. See:
https://elinux.org/Buildroot:DeveloperDaysELCE2024#Rules_for_defconfigs

Could you remove this file, please?

You can eventually quickly explain that in the readme.txt.

> @@ -0,0 +1,50 @@
> +#!/bin/sh
> +# S89firstboot: Resize root partition and filesystem on first boot via 
> uEnv.txt params
> +
> +case "$1" in
> +  start)
> +    if ! grep -q "firstboot=1" /proc/cmdline; then
> +        exit 0
> +    fi
> +
> +    printf "\nLooks like system is booting for the first time\n" 
> >/dev/console
> +
> +    BOOTPART=$(cat /proc/cmdline | tr ' ' '\n' | grep '^bootpart=' | 
> cut -d= -f2)
> +    ROOT_DEV=$(cat /proc/cmdline | tr ' ' '\n' | grep '^root=' | cut 
> -d= -f2)
> +
> +    if [ -z "$BOOTPART" ] || [ -z "$ROOT_DEV" ]; then
> +        echo "Error: bootpart or root param missing in cmdline."
> +        exit 1
> +    fi
> +
> +    DRIVE=$(echo $ROOT_DEV | sed 's/p[0-9]*$//')
> +    PART=$(echo $ROOT_DEV | grep -o '[0-9]*$')
> +
> +    echo "Expanding root partition on '${DRIVE}'..."
> +    parted -m -s "$DRIVE" resizepart "$PART" 100% > /dev/null
> +    partprobe "$DRIVE" || true
> +
> +    echo "Expanding root filesystem on '${ROOT_DEV}'..."
> +    resize2fs "$ROOT_DEV"
> +
> +    echo "Disabling firstboot in uEnv.txt..."
> +    boot_mntpoint="/tmp/bootmnt"
> +    mkdir -p "$boot_mntpoint"
> +
> +    if mount "$BOOTPART" "$boot_mntpoint"; then
> +        sed -i 's/firstboot=1/firstboot=0/g' "$boot_mntpoint/uEnv.txt"
> +        umount "$boot_mntpoint"
> +        echo "Operation is successful."
> +    else
> +        echo "Error: Unable to mount boot partition to disable 
> firstboot"
> +    fi
> +    ;;
> +  stop)
> +    ;;
> +  *)
> +    echo "Usage: $0 {start|stop}"
> +    exit 1
> +    ;;
> +esac
> +
> +exit 0
> diff --git a/board/t3/t3-gem-o1/uEnv.txt b/board/t3/t3-gem-o1/uEnv.txt
> new file mode 100644
> index 0000000000..f26b624322
> --- /dev/null
> +++ b/board/t3/t3-gem-o1/uEnv.txt
> @@ -0,0 +1,6 @@
> +# Environment file for T3 Gemstone O1 to override U-Boot default 
> variables
> +rootfstype=ext4
> +
> +# Override U-boot args to force ext4
> +args_eth=setenv bootargs console=${console} ${optargs} 
> root=/dev/mmcblk0p2 rw rootfstype=${rootfstype} bootpart=/dev/mmcblk0p1 
> firstboot=1 init_fatal_sh=1;
> +args_mmc=setenv bootargs console=${console} ${optargs} 
> root=/dev/mmcblk${mmcdev}p2 rw rootfstype=${rootfstype} rootwait 
> bootpart=/dev/mmcblk${mmcdev}p1 firstboot=1 init_fatal_sh=1;

If the "S89firstboot" file is removed, those "firstboot=1" are no
longer needed here. Could you remove those please?

> diff --git a/configs/t3_gem_o1_defconfig b/configs/t3_gem_o1_defconfig
> new file mode 100644
> index 0000000000..d4dd672e4a
> --- /dev/null
> +++ b/configs/t3_gem_o1_defconfig
> @@ -0,0 +1,59 @@
> +BR2_aarch64=y
> +BR2_cortex_a53=y

This patch adds the custom hash files, but the defconfig does not
enable the check of those hashes. Could you add here:

BR2_DOWNLOAD_FORCE_CHECK_HASHES=y

> +BR2_ROOTFS_POST_IMAGE_SCRIPT="board/t3/t3-gem-o1/post-image.sh"
> +BR2_LINUX_KERNEL=y
> +BR2_LINUX_KERNEL_CUSTOM_GIT=y
> +BR2_LINUX_KERNEL_CUSTOM_REPO_URL="https://github.com/t3gemstone/linux.git"
> +BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="02ecef0cb08a6bd123a4f035a296bc824bcfe5b4"
> +BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG=y
> +BR2_LINUX_KERNEL_DTS_SUPPORT=y
> +BR2_LINUX_KERNEL_INTREE_DTS_NAME="ti/k3-am67a-t3-gem-o1"
> +BR2_LINUX_KERNEL_INSTALL_TARGET=y
> +BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
> +BR2_KERNEL_HEADERS_AS_KERNEL=y
> +BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_12=y

New defconfigs are expected to use a Bootlin stable glibc
external toolchain. So, you should remove this:

BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_12=y

and add instead:

BR2_TOOLCHAIN_EXTERNAL=y
BR2_TOOLCHAIN_EXTERNAL_BOOTLIN=y
BR2_TOOLCHAIN_EXTERNAL_BOOTLIN_AARCH64_GLIBC_STABLE=y

> +BR2_TARGET_TI_K3_R5_LOADER=y
> +BR2_TARGET_TI_K3_R5_LOADER_CUSTOM_GIT=y
> +BR2_TARGET_TI_K3_R5_LOADER_CUSTOM_REPO_URL="https://github.com/t3gemstone/u-boot.git"
> +BR2_TARGET_TI_K3_R5_LOADER_CUSTOM_REPO_VERSION="8b5ae72c281207430fcc58031fe36f40900f7a2d"
> +BR2_TARGET_TI_K3_R5_LOADER_BOARD_DEFCONFIG="am67a_t3_gem_o1_r5"
> +BR2_TARGET_TI_K3_R5_LOADER_USE_DEFCONFIG=y
> +BR2_TARGET_UBOOT=y
> +BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
> +BR2_TARGET_UBOOT_CUSTOM_GIT=y
> +BR2_TARGET_UBOOT_CUSTOM_REPO_URL="https://github.com/t3gemstone/u-boot.git"
> +BR2_TARGET_UBOOT_CUSTOM_REPO_VERSION="8b5ae72c281207430fcc58031fe36f40900f7a2d"
> +BR2_TARGET_UBOOT_BOARD_DEFCONFIG="am67a_t3_gem_o1_a53"
> +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_NEEDS_GNUTLS=y
> +BR2_TARGET_UBOOT_NEEDS_ATF_BL31=y
> +BR2_TARGET_UBOOT_NEEDS_OPTEE_TEE=y
> +BR2_TARGET_UBOOT_NEEDS_OPTEE_TEE_RAW_BIN=y
> +BR2_TARGET_UBOOT_USE_BINMAN=y
> +# BR2_TARGET_UBOOT_FORMAT_BIN is not set
> +BR2_TARGET_UBOOT_FORMAT_IMG=y
> +BR2_TARGET_UBOOT_SPL=y
> +BR2_TARGET_UBOOT_SPL_NAME="tispl.bin"
> +BR2_TARGET_TI_K3_BOOT_FIRMWARE=y
> +BR2_TARGET_ARM_TRUSTED_FIRMWARE=y
> +BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_VERSION=y
> +BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_VERSION_VALUE="v2.10"
> +BR2_TARGET_ARM_TRUSTED_FIRMWARE_PLATFORM="k3"
> +BR2_TARGET_ARM_TRUSTED_FIRMWARE_TARGET_BOARD="lite"
> +BR2_TARGET_OPTEE_OS=y
> +BR2_TARGET_OPTEE_OS_PLATFORM="k3-am62x"
> +BR2_TARGET_ROOTFS_EXT2=y
> +BR2_TARGET_ROOTFS_EXT2_4=y
> +BR2_TARGET_ROOTFS_EXT2_SIZE="256M"
> +BR2_PACKAGE_HOST_GENIMAGE=y
> +BR2_PACKAGE_HOST_DOSFSTOOLS=y
> +BR2_PACKAGE_HOST_MTOOLS=y
> +BR2_GLOBAL_PATCH_DIR="board/t3/t3-gem-o1/patches"
> +BR2_TARGET_UBOOT_CUSTOM_MAKEOPTS="BINMAN_INDIRS=$(BINARIES_DIR) 
> TEE=$(BINARIES_DIR)/tee-pager_v2.bin"

Since you'll remove the "S89firstboot" script, the configs below
are no longer needed (e2fsprogs, parted, rootfs-overlay). Could
you also remove those, please?

> +BR2_PACKAGE_E2FSPROGS=y
> +BR2_PACKAGE_E2FSPROGS_RESIZE2FS=y
> +BR2_PACKAGE_PARTED=y
> +BR2_ROOTFS_OVERLAY="board/t3/t3-gem-o1/rootfs_overlay"

The defconfigs in Buildroot are expected to be minimal,
as generated by the command:

make t3_gem_o1_defconfig
make savedefconfig

Could you regenerate it with those commands, please?

> --
> 2.43.0

Could you send an updated patch addressing all those comments,
please?

Best regards,

Julien.
_______________________________________________
buildroot mailing list
buildroot@buildroot.org
https://lists.buildroot.org/mailman/listinfo/buildroot

^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2026-08-02  8:30 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-07-06 18:39 [Buildroot] [PATCH] board/t3/t3-gem-o1: add new board Selman Çetin via buildroot
2026-07-13 14:56 ` [Buildroot] " dowan gullient via buildroot
2026-07-19 17:12 ` [Buildroot] [PATCH] " Selman Çetin via buildroot
2026-08-02  8:29   ` Julien Olivain via buildroot

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