[Buildroot] [PATCH 18/21] configs/ti_j721e_sk_defconfig: new defconfig
Romain Naour
romain.naour at smile.fr
Tue Feb 13 17:28:14 UTC 2024
Adds support for TI's SK-TDA4VM board by introducing the
ti_j721e_sk_defconfig file and related support files.
Retrieve BSP settings from meta-ti (may be useful for other TI boards):
- Don't set BR2_TARGET_TI_K3_IMAGE_GEN since this tool is deprecated
[1] and must be replaced by u-boot binman (upstream).
See FOSDEM 2024 talk by TI folks about Binman and how it simplify the
overall boot-loader build flow [2].
- Set BR2_TARGET_ARM_TRUSTED_FIRMWARE_TARGET_BOARD = "generic"
meta-ti]$ git grep TFA_BOARD
meta-ti-bsp/conf/machine/beagleplay.conf:TFA_BOARD = "lite"
meta-ti-bsp/conf/machine/include/am62axx.inc:TFA_BOARD = "lite"
meta-ti-bsp/conf/machine/include/am62pxx.inc:TFA_BOARD = "lite"
meta-ti-bsp/conf/machine/include/am62xx.inc:TFA_BOARD = "lite"
meta-ti-bsp/conf/machine/include/am64xx.inc:TFA_BOARD = "lite"
meta-ti-bsp/conf/machine/include/am65xx.inc:TFA_BOARD = "generic"
meta-ti-bsp/conf/machine/include/j7200.inc:TFA_BOARD = "generic"
meta-ti-bsp/conf/machine/include/j721e.inc:TFA_BOARD = "generic"
meta-ti-bsp/conf/machine/include/j721s2.inc:TFA_BOARD = "generic"
meta-ti-bsp/conf/machine/include/j722s.inc:TFA_BOARD = "lite"
meta-ti-bsp/conf/machine/include/j784s4.inc:TFA_BOARD = "j784s4"
- Set BR2_TARGET_UBOOT_NEEDS_ATF_BL31 to provide BL31 variable pointing
to ATF bl31.bin to the U-Boot build process [3].
- Set BR2_TARGET_ARM_TRUSTED_FIRMWARE_BL32_OPTEE to OP-TEE as BL32
secure payload. meta-ti set "SPD=opteed" to build ATF [4].
- Set BR2_TARGET_OPTEE_OS_PLATFORM to "k3-j721e".
meta-ti uses the OPTEEMACHINE to set optee-os platform [5].
meta-ti]$ git grep OPTEEMACHINE
meta-ti-bsp/conf/machine/am437x-hs-evm.conf:OPTEEMACHINE = "ti-am43xx"
meta-ti-bsp/conf/machine/am57xx-hs-evm.conf:OPTEEMACHINE = "ti-am57xx"
meta-ti-bsp/conf/machine/beagleplay.conf:OPTEEMACHINE = "k3-am62x"
meta-ti-bsp/conf/machine/dra7xx-hs-evm.conf:OPTEEMACHINE = "ti-dra7xx"
meta-ti-bsp/conf/machine/include/am62axx.inc:OPTEEMACHINE = "k3-am62x"
meta-ti-bsp/conf/machine/include/am62pxx.inc:OPTEEMACHINE = "k3-am62x"
meta-ti-bsp/conf/machine/include/am62xx.inc:OPTEEMACHINE = "k3-am62x"
meta-ti-bsp/conf/machine/include/am64xx.inc:OPTEEMACHINE = "k3-am64x"
meta-ti-bsp/conf/machine/include/am65xx.inc:OPTEEMACHINE = "k3-am65x"
meta-ti-bsp/conf/machine/include/j7200.inc:OPTEEMACHINE = "k3-j721e"
meta-ti-bsp/conf/machine/include/j721e.inc:OPTEEMACHINE = "k3-j721e"
meta-ti-bsp/conf/machine/include/j721s2.inc:OPTEEMACHINE = "k3-j784s4"
meta-ti-bsp/conf/machine/include/j722s.inc:OPTEEMACHINE = "k3-am62x"
meta-ti-bsp/conf/machine/include/j784s4.inc:OPTEEMACHINE = "k3-j784s4"
- Set BR2_LINUX_KERNEL_DTB_KEEP_DIRNAME since u-boot is looking at /boot/dtb/ti
for devicetree. (Yocto uses KERNEL_DTBDEST)
Create a symlink to make sure /boot/dtb/ti exist.
(We want to keep the u-boot environment provided by upstream as is).
[1] https://git.yoctoproject.org/meta-ti/commit/?id=835811cf8586926cf78a961d090f4e6150432235
[2] https://fosdem.org/2024/schedule/event/fosdem-2024-3067-standardizing-the-generation-and-signing-of-boot-images/
[3] https://git.yoctoproject.org/meta-ti/commit/?id=e74b9a1746d4d04757c87c1920a0f743e55ff096
[4] https://git.yoctoproject.org/meta-ti/tree/meta-ti-bsp/recipes-bsp/trusted-firmware-a/trusted-firmware-a-ti.inc?h=09.02.00.004#n7
[5] https://git.yoctoproject.org/meta-arm/tree/meta-arm/recipes-security/optee/optee-os.inc?h=4.0.3#n23
More information about the board can be found at:
https://www.ti.com/tool/SK-TDA4VM
Signed-off-by: Romain Naour <romain.naour at smile.fr>
---
DEVELOPERS | 2 ++
board/ti/j721e-sk/genimage.cfg | 28 ++++++++++++++++++
board/ti/j721e-sk/post-build.sh | 16 +++++++++++
board/ti/j721e-sk/readme.txt | 34 ++++++++++++++++++++++
configs/ti_j721e_sk_defconfig | 51 +++++++++++++++++++++++++++++++++
5 files changed, 131 insertions(+)
create mode 100644 board/ti/j721e-sk/genimage.cfg
create mode 100755 board/ti/j721e-sk/post-build.sh
create mode 100644 board/ti/j721e-sk/readme.txt
create mode 100644 configs/ti_j721e_sk_defconfig
diff --git a/DEVELOPERS b/DEVELOPERS
index ff44741f9f..e5f2dd2327 100644
--- a/DEVELOPERS
+++ b/DEVELOPERS
@@ -2668,8 +2668,10 @@ F: package/vnstat/
N: Romain Naour <romain.naour at gmail.com>
F: board/qemu/
F: board/ti/am574x-idk/
+F: board/ti/j721e-sk/
F: configs/qemu_*
F: configs/am574x_idk_defconfig
+F: configs/ti_j721e_sk_defconfig
F: package/alure/
F: package/aubio/
F: package/binutils/
diff --git a/board/ti/j721e-sk/genimage.cfg b/board/ti/j721e-sk/genimage.cfg
new file mode 100644
index 0000000000..2a991748d5
--- /dev/null
+++ b/board/ti/j721e-sk/genimage.cfg
@@ -0,0 +1,28 @@
+image boot.vfat {
+ vfat {
+ files = {
+ "sysfw.itb",
+ "tiboot3.bin",
+ "tispl.bin",
+ "u-boot.img",
+ }
+ }
+
+ size = 16M
+}
+
+image sdcard.img {
+ hdimage {
+ }
+
+ partition u-boot {
+ partition-type = 0xC
+ bootable = "true"
+ image = "boot.vfat"
+ }
+
+ partition rootfs {
+ partition-type = 0x83
+ image = "rootfs.ext4"
+ }
+}
diff --git a/board/ti/j721e-sk/post-build.sh b/board/ti/j721e-sk/post-build.sh
new file mode 100755
index 0000000000..01af6ca474
--- /dev/null
+++ b/board/ti/j721e-sk/post-build.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+BOARD_DIR="$(dirname $0)"
+
+# u-boot is looking at /boot/dtb/ti for devicetree in the rootfs
+# partition while Buildroot install the kernel and its devicetree
+# in /boot (BR2_LINUX_KERNEL_INSTALL_TARGET enabled).
+# Enabling BR2_LINUX_KERNEL_DTB_KEEP_DIRNAME allows to keep the
+# "ti" subdirectory but "dts" is still missing.
+# Make sure /boot/dtb/ti exist by creating a symlink in
+# ${TARGET_DIR}/boot
+# https://git.yoctoproject.org/meta-ti/tree/meta-ti-bsp/recipes-kernel/linux/ti-kernel.inc?h=09.02.00.004#n13
+# https://source.denx.de/u-boot/u-boot/-/blob/v2024.01/include/env/ti/mmc.env?ref_type=tags#L18
+if [ -L ${TARGET_DIR}/boot/dtb ]; then
+ rm ${TARGET_DIR}/boot/dtb
+ ln -sf . ${TARGET_DIR}/boot/dtb
+fi
diff --git a/board/ti/j721e-sk/readme.txt b/board/ti/j721e-sk/readme.txt
new file mode 100644
index 0000000000..bebed1b3f6
--- /dev/null
+++ b/board/ti/j721e-sk/readme.txt
@@ -0,0 +1,34 @@
+Texas Instuments SK-TDA4VM Test and Development Board
+
+Description
+===========
+
+This configuration will build a basic image for the TI SK-TDA4VM
+board: https://www.ti.com/tool/SK-TDA4VM.
+
+How to Build
+============
+
+Select the default configuration for the target:
+
+$ make ti_j721e_sk_defconfig
+
+Optional: modify the configuration:
+
+$ make menuconfig
+
+Build:
+
+$ make
+
+To copy the resultimg output image file to an SD card use dd:
+
+$ dd if=output/images/sdcard.img of=/dev/sdX bs=1M
+
+How to Run
+==========
+
+Insert the SD card into the SK-TDA4VM board, and power it up through the
+USB Type-C connector. The system should come up. You can use a
+micro-USB cable to connect to the connector labeled DEBUG CONSOLE to
+communicate with the board.
diff --git a/configs/ti_j721e_sk_defconfig b/configs/ti_j721e_sk_defconfig
new file mode 100644
index 0000000000..fc2d70d76f
--- /dev/null
+++ b/configs/ti_j721e_sk_defconfig
@@ -0,0 +1,51 @@
+BR2_aarch64=y
+BR2_cortex_a72=y
+BR2_ROOTFS_POST_BUILD_SCRIPT="board/ti/j721e-sk/post-build.sh"
+BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
+BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/ti/j721e-sk/genimage.cfg"
+BR2_SYSTEM_DHCP="eth0"
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.6.4"
+BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG=y
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="ti/k3-j721e-sk"
+BR2_LINUX_KERNEL_DTB_KEEP_DIRNAME=y
+BR2_LINUX_KERNEL_INSTALL_TARGET=y
+BR2_TARGET_ROOTFS_EXT2=y
+BR2_TARGET_ROOTFS_EXT2_4=y
+BR2_TARGET_ROOTFS_EXT2_SIZE="256M"
+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="generic"
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_BL32_OPTEE=y
+BR2_TARGET_OPTEE_OS=y
+BR2_TARGET_OPTEE_OS_PLATFORM="k3-j721e"
+BR2_TARGET_TI_K3_BOOT_FIRMWARE=y
+BR2_TARGET_TI_K3_BOOT_FIRMWARE_SOC_J721E=y
+BR2_TARGET_TI_K3_R5_LOADER=y
+BR2_TARGET_TI_K3_R5_LOADER_CUSTOM_VERSION=y
+BR2_TARGET_TI_K3_R5_LOADER_CUSTOM_VERSION_VALUE="2024.01"
+BR2_TARGET_TI_K3_R5_LOADER_BOARD_DEFCONFIG="j721e_evm_r5"
+BR2_TARGET_TI_K3_R5_LOADER_USE_BINMAN=y
+BR2_TARGET_UBOOT=y
+BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
+BR2_TARGET_UBOOT_CUSTOM_VERSION=y
+BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2024.01"
+BR2_TARGET_UBOOT_BOARD_DEFCONFIG="j721e_evm_a72"
+BR2_TARGET_UBOOT_NEEDS_DTC=y
+BR2_TARGET_UBOOT_NEEDS_OPENSSL=y
+BR2_TARGET_UBOOT_NEEDS_PYLIBFDT=y
+BR2_TARGET_UBOOT_NEEDS_ATF_BL31=y
+BR2_TARGET_UBOOT_NEEDS_TI_K3_DM=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_UBOOT_CUSTOM_MAKEOPTS="TEE=$(BINARIES_DIR)/tee-pager_v2.bin"
+BR2_PACKAGE_HOST_DOSFSTOOLS=y
+BR2_PACKAGE_HOST_GENIMAGE=y
+BR2_PACKAGE_HOST_MTOOLS=y
--
2.43.0
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