[Buildroot] [PATCH 1/2] [PATCH 1/1] configs/stm32f469_disco_xip_defconfig: alternative defconfig for XIP

Christophe Priouzeau christophe.priouzeau at foss.st.com
Wed Aug 25 11:45:36 UTC 2021


Hi,
For Flash.sh and README.txt, can you make a version specific to XIP 
like: flash_xip.sh and README_xip.txt.

Regards
Christophe
On 8/24/21 12:03 PM, Yauheni Saldatsenka wrote:
> Update STM32F469-disco configuration files to operate with new kernel.
> 
> Result of make tinyconfig was taken as a starting point to fit kernel
> into flash memory.
> Current setup kernel + rootfs fits in 1.6MB on-chip flash memory
> 
> Fixes:
>      - Move kernel to new flash bank due to growth of dtb size
>      - Fix kernel start address in bootloader
>      - Remove outdated path which doesn't affect normal operation mode
> 
> Signed-off-by: Yauheni Saldatsenka <eugentoo at gmail.com>
> ---
>   .../stm32f469-disco/flash.sh                  |  47 +++-
>   .../stm32f469-disco/linux/defconfig           | 120 +++++++++
>   .../stm32f469-disco/linux/stm32f469-disco.dts | 240 ++++++++++++++++++
>   .../0002-kernel-start-address.patch           |  21 ++
>   .../patches/afboot-stm32/0003-no-mpu.patch    |  22 ++
>   configs/stm32f469_disco_xip_defconfig         |  24 ++
>   6 files changed, 465 insertions(+), 9 deletions(-)
>   create mode 100644 board/stmicroelectronics/stm32f469-disco/linux/defconfig
>   create mode 100644 board/stmicroelectronics/stm32f469-disco/linux/stm32f469-disco.dts
>   create mode 100644 board/stmicroelectronics/stm32f469-disco/patches/afboot-stm32/0002-kernel-start-address.patch
>   create mode 100644 board/stmicroelectronics/stm32f469-disco/patches/afboot-stm32/0003-no-mpu.patch
>   create mode 100644 configs/stm32f469_disco_xip_defconfig
> 
> diff --git a/board/stmicroelectronics/stm32f469-disco/flash.sh b/board/stmicroelectronics/stm32f469-disco/flash.sh
> index 984d2b2599..176e1c9d2c 100755
> --- a/board/stmicroelectronics/stm32f469-disco/flash.sh
> +++ b/board/stmicroelectronics/stm32f469-disco/flash.sh
> @@ -1,18 +1,47 @@
>   #!/bin/bash
>   
>   OUTPUT_DIR=$1
> +BUILD_TYPE=$2
>   
> -if ! test -d "${OUTPUT_DIR}" ; then
> +if ! test -d "${OUTPUT_DIR}"
> +then
>       echo "ERROR: no output directory specified."
>       echo "Usage: $0 OUTPUT_DIR"
>       exit 1
>   fi
>   
> -${OUTPUT_DIR}/host/bin/openocd -f board/stm32f469discovery.cfg \
> -  -c "init" \
> -  -c "reset init" \
> -  -c "flash probe 0" \
> -  -c "flash info 0" \
> -  -c "flash write_image erase ${OUTPUT_DIR}/images/u-boot.bin 0x08000000" \
> -  -c "reset run" \
> -  -c "shutdown"
> +if  [[ -z "${BUILD_TYPE}" ]]
> +then
> +    echo "ERROR: no build type specified, please select 'xip' or 'uboot'."
> +    echo "Usage: $0 OUTPUT_DIR $1 BUILD_TYPE"
> +    exit 1
> +fi
> +
> +case "${BUILD_TYPE}" in
> +	"xip")
> +		${OUTPUT_DIR}/host/bin/openocd -f board/stm32f469discovery.cfg \
> +					 -c "init" \
> +					 -c "reset init" \
> +					 -c "flash probe 0" \
> +					 -c "flash info 0" \
> +					 -c "flash write_image erase ${OUTPUT_DIR}/images/stm32f469i-disco.bin 0x08000000" \
> +					 -c "flash write_image erase ${OUTPUT_DIR}/images/stm32f469-disco.dtb 0x08004000" \
> +					 -c "flash write_image erase ${OUTPUT_DIR}/images/xipImage 0x08010000" \
> +					 -c "reset run" \
> +					 -c "shutdown"
> +		;;
> +	"uboot")
> +		FLASH_COMMAND=
> +		${OUTPUT_DIR}/host/bin/openocd -f board/stm32f469discovery.cfg \
> +					 -c "init" \
> +					 -c "reset init" \
> +					 -c "flash probe 0" \
> +					 -c "flash info 0" \
> +					 -c "flash write_image erase ${OUTPUT_DIR}/images/u-boot.bin 0x08000000" \
> +					 -c "reset run" \
> +					 -c "shutdown"
> +	    ;;
> +	*)
> +		echo "Wrong build type. Please select from: xip, uboot"
> +		;;
> +esac
> diff --git a/board/stmicroelectronics/stm32f469-disco/linux/defconfig b/board/stmicroelectronics/stm32f469-disco/linux/defconfig
> new file mode 100644
> index 0000000000..2d0ce59b31
> --- /dev/null
> +++ b/board/stmicroelectronics/stm32f469-disco/linux/defconfig
> @@ -0,0 +1,120 @@
> +# CONFIG_LOCALVERSION_AUTO is not set
> +CONFIG_KERNEL_XZ=y
> +CONFIG_NO_HZ_IDLE=y
> +CONFIG_HIGH_RES_TIMERS=y
> +CONFIG_PREEMPT=y
> +CONFIG_LOG_BUF_SHIFT=12
> +CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=10
> +CONFIG_BLK_DEV_INITRD=y
> +CONFIG_INITRAMFS_SOURCE="${BR_BINARIES_DIR}/rootfs.cpio"
> +# CONFIG_RD_GZIP is not set
> +# CONFIG_RD_BZIP2 is not set
> +# CONFIG_RD_LZMA is not set
> +# CONFIG_RD_XZ is not set
> +# CONFIG_RD_LZO is not set
> +# CONFIG_RD_LZ4 is not set
> +# CONFIG_RD_ZSTD is not set
> +CONFIG_CC_OPTIMIZE_FOR_SIZE=y
> +# CONFIG_MULTIUSER is not set
> +# CONFIG_SYSFS_SYSCALL is not set
> +# CONFIG_FHANDLE is not set
> +# CONFIG_POSIX_TIMERS is not set
> +# CONFIG_BUG is not set
> +# CONFIG_BASE_FULL is not set
> +# CONFIG_FUTEX is not set
> +# CONFIG_EPOLL is not set
> +# CONFIG_SIGNALFD is not set
> +# CONFIG_TIMERFD is not set
> +# CONFIG_EVENTFD is not set
> +# CONFIG_AIO is not set
> +# CONFIG_IO_URING is not set
> +# CONFIG_ADVISE_SYSCALLS is not set
> +# CONFIG_MEMBARRIER is not set
> +# CONFIG_KALLSYMS is not set
> +CONFIG_KCMP=y
> +# CONFIG_RSEQ is not set
> +CONFIG_EMBEDDED=y
> +# CONFIG_VM_EVENT_COUNTERS is not set
> +# CONFIG_COMPAT_BRK is not set
> +CONFIG_SLOB=y
> +# CONFIG_SLAB_MERGE_DEFAULT is not set
> +# CONFIG_MMU is not set
> +CONFIG_ARCH_STM32=y
> +# CONFIG_MACH_STM32F429 is not set
> +# CONFIG_MACH_STM32F746 is not set
> +# CONFIG_MACH_STM32F769 is not set
> +# CONFIG_MACH_STM32H743 is not set
> +CONFIG_CPU_V7M_NUM_IRQ=240
> +# CONFIG_ARM_DMA_MEM_BUFFERABLE is not set
> +CONFIG_SET_MEM_PARAM=y
> +CONFIG_DRAM_BASE=0xc0000000
> +CONFIG_DRAM_SIZE=0x01000000
> +CONFIG_HZ_1000=y
> +# CONFIG_ATAGS is not set
> +CONFIG_XIP_KERNEL=y
> +CONFIG_XIP_PHYS_ADDR=0x08010000
> +CONFIG_XIP_DEFLATED_DATA=y
> +# CONFIG_SUSPEND is not set
> +# CONFIG_STACKPROTECTOR is not set
> +# CONFIG_COMPAT_32BIT_TIME is not set
> +# CONFIG_GCC_PLUGINS is not set
> +# CONFIG_BLOCK is not set
> +CONFIG_BINFMT_FLAT=y
> +CONFIG_BINFMT_SHARED_FLAT=y
> +# CONFIG_COREDUMP is not set
> +CONFIG_DEVTMPFS=y
> +CONFIG_DEVTMPFS_MOUNT=y
> +# CONFIG_STANDALONE is not set
> +# CONFIG_PREVENT_FIRMWARE_BUILD is not set
> +# CONFIG_FW_LOADER is not set
> +# CONFIG_ALLOW_DEV_COREDUMP is not set
> +CONFIG_EEPROM_93CX6=y
> +# CONFIG_INPUT is not set
> +# CONFIG_VT is not set
> +# CONFIG_UNIX98_PTYS is not set
> +# CONFIG_LEGACY_PTYS is not set
> +# CONFIG_LDISC_AUTOLOAD is not set
> +CONFIG_SERIAL_STM32=y
> +CONFIG_SERIAL_STM32_CONSOLE=y
> +# CONFIG_DEVMEM is not set
> +# CONFIG_HWMON is not set
> +CONFIG_WATCHDOG=y
> +CONFIG_MFD_STM32_TIMERS=y
> +# CONFIG_USB_SUPPORT is not set
> +CONFIG_NEW_LEDS=y
> +CONFIG_LEDS_CLASS=y
> +CONFIG_LEDS_GPIO=y
> +CONFIG_LEDS_TRIGGERS=y
> +CONFIG_LEDS_TRIGGER_HEARTBEAT=y
> +CONFIG_RTC_CLASS=y
> +CONFIG_RTC_DRV_STM32=y
> +CONFIG_DMADEVICES=y
> +CONFIG_STM32_DMA=y
> +CONFIG_STM32_DMAMUX=y
> +CONFIG_STM32_MDMA=y
> +CONFIG_SYNC_FILE=y
> +# CONFIG_VIRTIO_MENU is not set
> +# CONFIG_VHOST_MENU is not set
> +CONFIG_IIO=y
> +CONFIG_IIO_BUFFER=y
> +CONFIG_IIO_TRIGGERED_BUFFER=y
> +CONFIG_IIO_STM32_TIMER_TRIGGER=y
> +# CONFIG_FILE_LOCKING is not set
> +# CONFIG_DNOTIFY is not set
> +# CONFIG_INOTIFY_USER is not set
> +# CONFIG_PROC_SYSCTL is not set
> +CONFIG_CONFIGFS_FS=y
> +# CONFIG_MISC_FILESYSTEMS is not set
> +CONFIG_NLS=y
> +CONFIG_PRINTK_TIME=y
> +CONFIG_CONSOLE_LOGLEVEL_DEFAULT=15
> +CONFIG_CONSOLE_LOGLEVEL_QUIET=15
> +CONFIG_MESSAGE_LOGLEVEL_DEFAULT=7
> +# CONFIG_SYMBOLIC_ERRNAME is not set
> +CONFIG_DEBUG_INFO=y
> +# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
> +CONFIG_DEBUG_FS=y
> +# CONFIG_DEBUG_MISC is not set
> +# CONFIG_SCHED_DEBUG is not set
> +# CONFIG_RCU_TRACE is not set
> +# CONFIG_RUNTIME_TESTING_MENU is not set
> diff --git a/board/stmicroelectronics/stm32f469-disco/linux/stm32f469-disco.dts b/board/stmicroelectronics/stm32f469-disco/linux/stm32f469-disco.dts
> new file mode 100644
> index 0000000000..83fe71bbc6
> --- /dev/null
> +++ b/board/stmicroelectronics/stm32f469-disco/linux/stm32f469-disco.dts
> @@ -0,0 +1,240 @@
> +/*
> + * Copyright 2016 - Lee Jones <lee.jones at linaro.org>
> + *
> + * This file is dual-licensed: you can use it either under the terms
> + * of the GPL or the X11 license, at your option. Note that this dual
> + * licensing only applies to this file, and not this project as a
> + * whole.
> + *
> + *  a) This file is free software; you can redistribute it and/or
> + *     modify it under the terms of the GNU General Public License as
> + *     published by the Free Software Foundation; either version 2 of the
> + *     License, or (at your option) any later version.
> + *
> + *     This file is distributed in the hope that it will be useful,
> + *     but WITHOUT ANY WARRANTY; without even the implied warranty of
> + *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + *     GNU General Public License for more details.
> + *
> + *     You should have received a copy of the GNU General Public
> + *     License along with this file; if not, write to the Free
> + *     Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
> + *     MA 02110-1301 USA
> + *
> + * Or, alternatively,
> + *
> + *  b) Permission is hereby granted, free of charge, to any person
> + *     obtaining a copy of this software and associated documentation
> + *     files (the "Software"), to deal in the Software without
> + *     restriction, including without limitation the rights to use,
> + *     copy, modify, merge, publish, distribute, sublicense, and/or
> + *     sell copies of the Software, and to permit persons to whom the
> + *     Software is furnished to do so, subject to the following
> + *     conditions:
> + *
> + *     The above copyright notice and this permission notice shall be
> + *     included in all copies or substantial portions of the Software.
> + *
> + *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> + *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
> + *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> + *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
> + *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
> + *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> + *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + *     OTHER DEALINGS IN THE SOFTWARE.
> + */
> +
> +/dts-v1/;
> +#include "stm32f469.dtsi"
> +#include "stm32f469-pinctrl.dtsi"
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
> +
> +/ {
> +	model = "STMicroelectronics STM32F469i-DISCO board";
> +	compatible = "st,stm32f469i-disco", "st,stm32f469";
> +
> +	chosen {
> +		bootargs = "root=/dev/ram fbcon=map:0";
> +		stdout-path = "serial0:115200n8";
> +	};
> +
> +	memory at c0000000 {
> +		device_type = "memory";
> +		reg = <0xc0000000 0x1000000>;
> +	};
> +
> +	aliases {
> +		serial0 = &usart3;
> +	};
> +
> +	mmc_vcard: mmc_vcard {
> +		compatible = "regulator-fixed";
> +		regulator-name = "mmc_vcard";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +	};
> +
> +	vdd_dsi: vdd-dsi {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vdd_dsi";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +	};
> +
> +	soc {
> +		dma-ranges = <0xc0000000 0xc0000000 0x10000000>;
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +		led-green {
> +			gpios = <&gpiog 6 GPIO_ACTIVE_LOW>;
> +			linux,default-trigger = "heartbeat";
> +		};
> +		led-orange {
> +			gpios = <&gpiod 4 GPIO_ACTIVE_LOW>;
> +		};
> +		led-red {
> +			gpios = <&gpiod 5 GPIO_ACTIVE_LOW>;
> +		};
> +		led-blue {
> +			gpios = <&gpiok 3 GPIO_ACTIVE_LOW>;
> +		};
> +	};
> +
> +	gpio_keys {
> +		compatible = "gpio-keys";
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		autorepeat;
> +		button at 0 {
> +			label = "User";
> +			linux,code = <KEY_WAKEUP>;
> +			gpios = <&gpioa 0 GPIO_ACTIVE_HIGH>;
> +		};
> +	};
> +
> +	/* This turns on vbus for otg for host mode (dwc2) */
> +	vcc5v_otg: vcc5v-otg-regulator {
> +		compatible = "regulator-fixed";
> +		enable-active-high;
> +		gpio = <&gpiob 2 GPIO_ACTIVE_HIGH>;
> +		regulator-name = "vcc5_host1";
> +		regulator-always-on;
> +	};
> +};
> +
> +&rcc {
> +	compatible = "st,stm32f469-rcc", "st,stm32f42xx-rcc", "st,stm32-rcc";
> +};
> +
> +&clk_hse {
> +	clock-frequency = <8000000>;
> +};
> +
> +&dsi {
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +	status = "okay";
> +
> +	ports {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		port at 0 {
> +			reg = <0>;
> +			dsi_in: endpoint {
> +				remote-endpoint = <&ltdc_out_dsi>;
> +			};
> +		};
> +
> +		port at 1 {
> +			reg = <1>;
> +			dsi_out: endpoint {
> +				remote-endpoint = <&dsi_panel_in>;
> +			};
> +		};
> +	};
> +
> +	panel-dsi at 0 {
> +		compatible = "orisetech,otm8009a";
> +		reg = <0>; /* dsi virtual channel (0..3) */
> +		reset-gpios = <&gpioh 7 GPIO_ACTIVE_LOW>;
> +		power-supply = <&vdd_dsi>;
> +		status = "okay";
> +
> +		port {
> +			dsi_panel_in: endpoint {
> +				remote-endpoint = <&dsi_out>;
> +			};
> +		};
> +	};
> +};
> +
> +&ltdc {
> +	status = "okay";
> +
> +	port {
> +		ltdc_out_dsi: endpoint at 0 {
> +			remote-endpoint = <&dsi_in>;
> +		};
> +	};
> +};
> +
> +&rtc {
> +	status = "okay";
> +};
> +
> +&timers1 {
> +	status = "okay";
> +
> +	pwm {
> +		pinctrl-0 = <&pwm1_pins>;
> +		pinctrl-names = "default";
> +		status = "okay";
> +	};
> +
> +	timer at 0 {
> +		status = "okay";
> +	};
> +};
> +
> +&timers3 {
> +	status = "okay";
> +
> +	pwm {
> +		pinctrl-0 = <&pwm3_pins>;
> +		pinctrl-names = "default";
> +		status = "okay";
> +	};
> +
> +	timer at 2 {
> +		status = "okay";
> +	};
> +};
> +
> +&sdio {
> +	status = "okay";
> +	vmmc-supply = <&mmc_vcard>;
> +	cd-gpios = <&gpiog 2 GPIO_ACTIVE_LOW>;
> +	broken-cd;
> +	pinctrl-names = "default", "opendrain";
> +	pinctrl-0 = <&sdio_pins>;
> +	pinctrl-1 = <&sdio_pins_od>;
> +	bus-width = <4>;
> +};
> +
> +&usart3 {
> +	pinctrl-0 = <&usart3_pins_a>;
> +	pinctrl-names = "default";
> +	status = "okay";
> +};
> +
> +&usbotg_fs {
> +	dr_mode = "host";
> +	pinctrl-0 = <&usbotg_fs_pins_a>;
> +	pinctrl-names = "default";
> +	status = "okay";
> +};
> diff --git a/board/stmicroelectronics/stm32f469-disco/patches/afboot-stm32/0002-kernel-start-address.patch b/board/stmicroelectronics/stm32f469-disco/patches/afboot-stm32/0002-kernel-start-address.patch
> new file mode 100644
> index 0000000000..614effa85b
> --- /dev/null
> +++ b/board/stmicroelectronics/stm32f469-disco/patches/afboot-stm32/0002-kernel-start-address.patch
> @@ -0,0 +1,21 @@
> +diff --git a/stm32f469i-disco.c b/stm32f469i-disco.c
> +index 2da1f4b65f..96e4dff65e 100644
> +--- a/stm32f469i-disco.c
> ++++ b/stm32f469i-disco.c
> +@@ -6,6 +6,7 @@
> + #include "gpio.h"
> + #include "mpu.h"
> +
> ++#define KERNEL_ADDR     0x08010000
> + #define CONFIG_HSE_HZ	8000000
> + #define CONFIG_PLL_M	8
> + #define CONFIG_PLL_N	360
> +@@ -85,7 +86,7 @@ static void fmc_wait_busy(void)
> +
> + void start_kernel(void)
> + {
> +-	void (*kernel)(uint32_t reserved, uint32_t mach, uint32_t dt) = (void (*)(uint32_t, uint32_t, uint32_t))(0x08008000 | 1);
> ++	void (*kernel)(uint32_t reserved, uint32_t mach, uint32_t dt) = (void (*)(uint32_t, uint32_t, uint32_t))(KERNEL_ADDR | 1);
> +
> + 	kernel(0, ~0UL, 0x08004000);
> + }
> diff --git a/board/stmicroelectronics/stm32f469-disco/patches/afboot-stm32/0003-no-mpu.patch b/board/stmicroelectronics/stm32f469-disco/patches/afboot-stm32/0003-no-mpu.patch
> new file mode 100644
> index 0000000000..bc66d2d0ef
> --- /dev/null
> +++ b/board/stmicroelectronics/stm32f469-disco/patches/afboot-stm32/0003-no-mpu.patch
> @@ -0,0 +1,22 @@
> +diff --git a/stm32f469i-disco.c b/stm32f469i-disco.c
> +index d4d0909831..03f823f288 100644
> +--- a/stm32f469i-disco.c
> ++++ b/stm32f469i-disco.c
> +@@ -127,7 +127,7 @@ int main(void)
> +
> + 	int i;
> +
> +-	mpu_config(0x0);
> ++	mpu_config(0xc0000000);
> +
> + 	if (*FLASH_CR & FLASH_CR_LOCK) {
> + 		*FLASH_KEYR = 0x45670123;
> +@@ -229,7 +229,7 @@ int main(void)
> + 	usart_setup(usart_base, 45000000);
> + 	usart_putch(usart_base, '.');
> +
> +-	*SYSCFG_MEMRMP = 0x4;
> ++	/* *SYSCFG_MEMRMP = 0x4; */
> +
> + 	start_kernel();
> +
> diff --git a/configs/stm32f469_disco_xip_defconfig b/configs/stm32f469_disco_xip_defconfig
> new file mode 100644
> index 0000000000..81bdb0d6d6
> --- /dev/null
> +++ b/configs/stm32f469_disco_xip_defconfig
> @@ -0,0 +1,24 @@
> +BR2_arm=y
> +BR2_cortex_m4=y
> +BR2_GLOBAL_PATCH_DIR="board/stmicroelectronics/stm32f469-disco/patches"
> +BR2_KERNEL_HEADERS_5_13=y
> +# BR2_UCLIBC_INSTALL_UTILS is not set
> +BR2_GCC_VERSION_11_X=y
> +BR2_GCC_ENABLE_LTO=y
> +BR2_ROOTFS_POST_BUILD_SCRIPT="board/stmicroelectronics/common/stm32f4xx/stm32-post-build.sh"
> +BR2_LINUX_KERNEL=y
> +BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
> +BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/stmicroelectronics/stm32f469-disco/linux/defconfig"
> +BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM=y
> +BR2_LINUX_KERNEL_XZ=y
> +BR2_LINUX_KERNEL_IMAGE_TARGET_NAME="xipImage"
> +BR2_LINUX_KERNEL_DTS_SUPPORT=y
> +BR2_LINUX_KERNEL_INTREE_DTS_NAME="stm32f469-disco"
> +BR2_LINUX_KERNEL_CUSTOM_DTS_PATH="board/stmicroelectronics/stm32f469-disco/linux/stm32f469-disco.dts"
> +BR2_PACKAGE_BUSYBOX_CONFIG="package/busybox/busybox-minimal.config"
> +BR2_PACKAGE_ZLIB=y
> +BR2_TARGET_ROOTFS_INITRAMFS=y
> +# BR2_TARGET_ROOTFS_TAR is not set
> +BR2_TARGET_AFBOOT_STM32=y
> +BR2_PACKAGE_HOST_OPENOCD=y
> +BR2_PACKAGE_HOST_UTIL_LINUX=y
> 


-- 
Best regards / Cordialement,

Christophe Priouzeau | Tel: +33 244027320
STMicroelectronics
ST online: www.st.com<http://www.st.com/>


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