[Buildroot] [PATCH v1] configs/imxrt1050-evk: new defconfig
Giulio Benetti
giulio.benetti at benettiengineering.com
Fri Jul 29 22:28:51 UTC 2022
On 30/07/22 00:11, Jesse Taube wrote:
>
>
> On 7/29/22 18:05, Giulio Benetti wrote:
>> Hi Jesse!
>>
>> On 23/07/22 18:09, Jesse Taube wrote:
>>> The imxrt1050-evk is a development board from NXP.
>>
>> Please here provide a brief description of the board and
>> an URL pointing to the board page.
>>
>>> Signed-off-by: Jesse Taube <Mr.Bossman075 at gmail.com>
>>> Cc: Giulio Benetti <giulio.benetti at benettiengineering.com>
>>> ---
>>> DEVELOPERS | 6 ++++
>>> board/freescale/imxrt1050evk/genimage.cfg | 34 ++++++++++++++++++
>>> board/freescale/imxrt1050evk/post-build.sh | 4 +++
>>> board/freescale/imxrt1050evk/readme.txt | 23 ++++++++++++
>>> board/freescale/imxrt1050evk/uboot.fragment | 2 ++
>>> configs/imxrt1050-evk_defconfig | 40
>>> +++++++++++++++++++++
>>> 6 files changed, 109 insertions(+)
>>> create mode 100644 board/freescale/imxrt1050evk/genimage.cfg
>>> create mode 100755 board/freescale/imxrt1050evk/post-build.sh
>>> create mode 100644 board/freescale/imxrt1050evk/readme.txt
>>> create mode 100644 board/freescale/imxrt1050evk/uboot.fragment
>>> create mode 100644 configs/imxrt1050-evk_defconfig
>>>
>>> diff --git a/DEVELOPERS b/DEVELOPERS
>>> index 0afd697b6c..206bac99e0 100644
>>> --- a/DEVELOPERS
>>> +++ b/DEVELOPERS
>>> @@ -1096,9 +1096,11 @@ F: package/webp/
>>> F: package/xapian/
>>> N: Giulio Benetti <giulio.benetti at benettiengineering.com>
>>> +F: board/freescale/imxrt1050evk/*
>>> F: board/olimex/a*
>>> F: configs/amarula_vyasa_rk3288_defconfig
>>> F: configs/asus_tinker_rk3288_defconfig
>>> +F: configs/imxrt1050-evk_defconfig
>>
>> Thank you for adding me :-)
>>
>>> F: configs/olimex_a*
>>> F: package/at/
>>> F: package/binutils/
>>> @@ -1421,6 +1423,10 @@ F: package/wmctrl/
>>> F: package/x11r7/xdriver_xf86-video-imx/
>>> F: package/x11r7/xdriver_xf86-video-imx-viv/
>>> +N: Jesse Taube <Mr.Bossman075 at gmail.com>
>>> +F: board/freescale/imxrt1050evk/*
>>> +F: configs/imxrt1050-evk_defconfig
>>> +
>>> N: Jianhui Zhao <zhaojh329 at gmail.com>
>>> F: package/libuhttpd/
>>> F: package/libuwsc/
>>> diff --git a/board/freescale/imxrt1050evk/genimage.cfg
>>> b/board/freescale/imxrt1050evk/genimage.cfg
>>> new file mode 100644
>>> index 0000000000..e9f224516f
>>> --- /dev/null
>>> +++ b/board/freescale/imxrt1050evk/genimage.cfg
>>> @@ -0,0 +1,34 @@
>>> +image boot.vfat {
>>> + vfat {
>>> + files = {
>>> + "uImage",
>>> + "imxrt1050-evk.dtb",
>>> + }
>>> + }
>>> + size = 6M
>>> +}
>>> +
>>> +image sdcard.img {
>>> + hdimage {}
>>> + partition SPL {
>>> + in-partition-table = "no"
>>> + image = "SPL"
>>> + offset = 1K
>>> + size = 127K
>>> + }
>>> + partition u-boot {
>>> + in-partition-table = "no"
>>> + image = "u-boot.img"
>>> + offset = 128K
>>> + size = 512K
>>> + }
>>> + partition boot {
>>> + partition-type = 0xc
>>> + bootable = "true"
>>> + image = "boot.vfat"
>>> + }
>>> + partition rootfs {
>>> + partition-type = 0x83
>>> + image = "rootfs.ext4"
>>> + }
>>> +}
>>
>> genimage.cfg has a standard format to follow that you can find in
>> Buildroot's manual:
>> https://buildroot.org/downloads/manual/manual.html#writing-genimage-cfg
> OH... I didn't see this.
>> You're missing most all newlines after every closing curly parenthesis.
>>
>>> diff --git a/board/freescale/imxrt1050evk/post-build.sh
>>> b/board/freescale/imxrt1050evk/post-build.sh
>>> new file mode 100755
>>> index 0000000000..47557566f9
>>> --- /dev/null
>>> +++ b/board/freescale/imxrt1050evk/post-build.sh
>>> @@ -0,0 +1,4 @@
>>> +#!/bin/sh
>>> +rm output/images/uImage
>>> +mkimage -A arm -O linux -T kernel -C none -a 0x80008000 -e
>>> 0x80008000 -n "Linux kernel" -d output/images/Image output/images/uImage
>>
>> This ^^^ can be achieved by using BR2_LINUX_KERNEL_UIMAGE=y instead of
>> the default selected BR2_LINUX_KERNEL_ZIMAGE.
> BR2_LINUX_KERNEL_UIMAGE=y doesn't let me select compression `-C none`
> u-boot runs out of memory as it is running in the 512kB address space
> and not the 32MB
Ok, I've forgotten about that. So you can go with that script but take
as an example this one:
https://gitlab.com/buildroot.org/buildroot/-/blob/master/board/nexbox/a95x/post-build.sh
This because you have to use Buildroot's variable for executables and
paths like $MKIMAGE, $BINARIES_DIR and so on
Kind regards!
--
Giulio Benetti
Benetti Engineering sas
>>> +./support/scripts/genimage.sh $2 $3
>>
>> This ^^^ can be achieved with:
>> BR2_ROOTFS_POST_IMAGE_SCRIPT
>> and
>> BR2_ROOTFS_POST_SCRIPT_ARGS
>>
>> you can take as reference:
>> https://gitlab.com/buildroot.org/buildroot/-/blob/master/configs/olimex_a33_olinuxino_defconfig#L46-47
>>
>>
>>> diff --git a/board/freescale/imxrt1050evk/readme.txt
>>> b/board/freescale/imxrt1050evk/readme.txt
>>> new file mode 100644
>>> index 0000000000..d9c183a38f
>>> --- /dev/null
>>> +++ b/board/freescale/imxrt1050evk/readme.txt
>>> @@ -0,0 +1,23 @@
>>> +NXP i.MXRT1050 EVK board
>>> +---------------------
>>> +
>>> +To build a minimal support for this board:
>>> +
>>> +$ make imxrt1050-evk_defconfig
>>> +$ make
>>> +
>>> +Buildroot prepares a bootable "sdcard.img" image in the output/images/
>>> +directory, ready to be flashed into the SD card:
>>> +
>>> +$ sudo dd status=progress oflag=sync bs=4k
>>> if=output/images/sdcard.img of=/dev/<sd-card-device>; sync
>>
>> This:
>> ```
>> # dd if=output/images/sdcard.img of=/dev/sdX
>>
>> Where 'sdX' is the device node of the uSD.
>> ```
>> is sufficient.
>>
>>> +Jumper settings:
>>> +
>>> + SW7: 1 0 1 0
>>> +
>>> +Where 0 means bottom position and 1 means top position (from the
>>> +switch label numbers reference).
>>> +
>>> +Connect the USB cable between the EVK and the PC for the console.
>>> +
>>> +Insert the micro SD card in the board, power it up and U-Boot
>>> messages should come up.
>>> diff --git a/board/freescale/imxrt1050evk/uboot.fragment
>>> b/board/freescale/imxrt1050evk/uboot.fragment
>>> new file mode 100644
>>> index 0000000000..1c5bb6af35
>>> --- /dev/null
>>> +++ b/board/freescale/imxrt1050evk/uboot.fragment
>>> @@ -0,0 +1,2 @@
>>> +CONFIG_USE_BOOTCOMMAND=y
>>> +CONFIG_BOOTCOMMAND="setenv bootargs console=ttyLP0
>>> root=/dev/mmcblk0p2 rw earlycon rootwait;load mmc 0:1 0x80800000
>>> imxrt1050-evk.dtb;load mmc 0:1 0x80000000 uImage;bootm 0x80000000 -
>>> 0x80800000"
>>> diff --git a/configs/imxrt1050-evk_defconfig
>>> b/configs/imxrt1050-evk_defconfig
>>> new file mode 100644
>>> index 0000000000..03a47c1fd6
>>> --- /dev/null
>>> +++ b/configs/imxrt1050-evk_defconfig
>>> @@ -0,0 +1,40 @@
>>> +# Architecture
>>> +BR2_arm=y
>>> +BR2_cortex_m7=y
>>> +
>>> +# Image
>>> +BR2_ROOTFS_POST_IMAGE_SCRIPT="board/freescale/imxrt1050evk/post-build.sh"
>>> +BR2_ROOTFS_POST_SCRIPT_ARGS="-c
>>> board/freescale/imxrt1050evk/genimage.cfg"
>>
>> After modified like above for post-build.sh you have to modify these 2
>> lines ^^^ and drop post-build.sh script.
>>
>>> +
>>> +# Kernel
>>> +BR2_LINUX_KERNEL=y
>>> +BR2_LINUX_KERNEL_CUSTOM_VERSION=y
>>> +BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.19-rc5"
>>
>> Here it would be better using a stable version. 5 days ago Linux
>> 5.19-rc8 has been released so I expect the final release to land
>> on Sunday or in the beginning of the next week. So please, use version
>> 5.19.
>>
>>> +BR2_LINUX_KERNEL_DEFCONFIG="imxrt"
>>> +BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM=y
>>> +BR2_LINUX_KERNEL_IMAGE_TARGET_NAME="Image"
>>> +BR2_LINUX_KERNEL_IMAGE_NAME="Image"
>>
>> As pointed above here ^^^ use uImage.
>>
>>> +BR2_LINUX_KERNEL_DTS_SUPPORT=y
>>> +BR2_LINUX_KERNEL_INTREE_DTS_NAME="imxrt1050-evk"
>>> +
>>> +# Filesystem
>>> +BR2_TARGET_ROOTFS_EXT2=y
>>> +BR2_TARGET_ROOTFS_EXT2_4=y
>>> +BR2_TARGET_ROOTFS_EXT2_LABEL="root"
>>> +BR2_TARGET_ROOTFS_EXT2_SIZE="3M"
>>> +
>>> +
>>> +# Bootloader
>>> +BR2_TARGET_UBOOT=y
>>> +BR2_TARGET_UBOOT_BOARD_DEFCONFIG="imxrt1050-evk"
>>> +BR2_TARGET_UBOOT_CONFIG_FRAGMENT_FILES="board/freescale/imxrt1050evk/uboot.fragment"
>>> +BR2_TARGET_UBOOT_FORMAT_IMG=y
>>> +BR2_TARGET_UBOOT_SPL=y
>>> +BR2_TARGET_UBOOT_SPL_NAME="SPL"
>>> +
>>> +# Required tools to create the SD card image
>>> +BR2_PACKAGE_HOST_GENIMAGE=y
>>> +BR2_PACKAGE_HOST_MKPASSWD=y
>>> +
>>> +# Misc
>>> +BR2_BINUTILS_VERSION_2_36_X=y
>>
>> I remember there is a reason to force using binutils 2.36, maybe the
>> thumb2 ADR bug in u-boot? If yes, please briefly explain why this is
>> here.
>>
>> I've given a build using Buildroot's utils/docker-run but it fails due
>> to missing BR2_TARGET_UBOOT_NEEDS_OPENSSL=y. So please next time build
>> with utils/docker-run to catch any possible missing host dependency.
>>
>> Waiting for V2 then.
>>
>> Thanks for contributing!
>> Kind regards
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