initial buildroot for linux 5.15
This commit is contained in:
Huan.Feng
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From e9a88fddc149fc52cdc5a8997f9fd3a29416c643 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Vincent=20Stehl=C3=A9?= <vincent.stehle@freescale.com>
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Date: Tue, 12 Aug 2014 10:17:31 +0200
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Subject: [PATCH] mx6qsabre_common: boot Linux to /init in mfgtools mode
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Buildroot supplies a nice /init wrapper script to use when booting from a
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ramdisk.
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This patch tells u-boot to tell the kernel to boot into /init (instead of
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/linuxrc) on i.MX6, when booting in mfgtools mode. This way we can boot a
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buildroot system entirely through USB.
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Signed-off-by: Vincent Stehlé <vincent.stehle@freescale.com>
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Signed-off-by: Julien Olivain <julien.olivain@oss.nxp.com>
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---
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include/configs/imx_env.h | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/include/configs/imx_env.h b/include/configs/imx_env.h
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index c03748d93f..aa1a8bf488 100644
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--- a/include/configs/imx_env.h
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+++ b/include/configs/imx_env.h
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@@ -29,7 +29,7 @@
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#define CONFIG_MFG_ENV_SETTINGS_DEFAULT \
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"mfgtool_args=setenv bootargs console=${console},${baudrate} " \
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- "rdinit=/linuxrc " \
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+ "rdinit=/init " \
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"clk_ignore_unused "\
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"\0" \
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"kboot="MFG_BOOT_CMD"\0"\
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--
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2.26.2
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********************************************************
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Freescale i.MX6 Q, DL and SoloX SABRE development boards
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********************************************************
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This file documents the Buildroot support for the Freescale SABRE Board
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for Smart Devices Based on the i.MX 6 and i.MX 6SoloX Series (SABRESD),
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as well as the Freescale SABRE Board for Automotive Infotainment.
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Read the i.MX 6 SABRESD Quick Start Guide for an introduction to the
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board:
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http://cache.freescale.com/files/32bit/doc/quick_start_guide/SABRESDB_IMX6_QSG.pdf
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Read the i.MX 6 SoloX SABRESD Quick Start Guide for an introduction to
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the board:
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http://cache.freescale.com/files/32bit/doc/user_guide/IMX6SOLOXQSG.pdf
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Read the SABRE for Automotive Infotainment Quick Start Guide for an
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introduction to the board:
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http://cache.freescale.com/files/32bit/doc/user_guide/IMX6SABREINFOQSG.pdf
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Building with NXP kernel and NXP U-Boot
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=======================================
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First, configure Buildroot for your SABRE board.
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For i.MX6Q SABRE SD board:
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make freescale_imx6qsabresd_defconfig
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For i.MX6DL SABRE SD board:
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make freescale_imx6dlsabresd_defconfig
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For i.MX6 SoloX SABRE SD board:
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make freescale_imx6sxsabresd_defconfig
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For i.MX6Q SABRE Auto board:
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make freescale_imx6qsabreauto_defconfig
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For i.MX6DL SABRE Auto board:
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make freescale_imx6dlsabreauto_defconfig
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Build all components:
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make
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You will find in ./output/images/ the following files:
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- imx6dl-sabresd.dtb or imx6q-sabresd.dtb or imx6sx-sdb.dtb or
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imx6q-sabreauto.dtb or imx6dl-sabreauto.dtb
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- rootfs.ext2
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- rootfs.tar
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- u-boot.imx
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- uImage, or zImage for i.MX6 SoloX
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Building with mainline kernel and mainline U-Boot
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=================================================
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Mainline U-Boot uses SPL and can support the three
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variants of mx6sabreauto boards: mx6q, mx6dl and mx6qp.
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First, configure Buildroot for your mx6sabreauto board
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make imx6-sabreauto_defconfig
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Build all components:
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make
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You will find in output/images/ the following files:
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- imx6dl-sabresd.dtb, imx6q-sabresd.dtb, imx6q-sabresd.dtb
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- rootfs.ext2
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- SPL and u-boot.img
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- u-boot.imx
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- zImage
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Create a bootable SD card
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=========================
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To determine the device associated to the SD card have a look in the
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/proc/partitions file:
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cat /proc/partitions
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Buildroot prepares a bootable "sdcard.img" image in the output/images/
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directory, ready to be dumped on a microSD card. Launch the following
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command as root:
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dd if=./output/images/sdcard.img of=/dev/<your-microsd-device>
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*** WARNING! The script will destroy all the card content. Use with care! ***
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For details about the medium image layout, see the definition in
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board/freescale/common/imx/genimage.cfg.template.
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Boot the SABRE board
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====================
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i.MX6 SABRE SD
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--------------
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To boot your newly created system on an i.MX6 SABRE SD Board (refer to
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the i.MX6 SABRE SD Quick Start Guide for guidance):
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- insert the SD card in the SD3 slot of the board;
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- locate the BOOT dip switches (SW6), set dips 2 and 7 to ON, all others to OFF;
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- connect a Micro USB cable to Debug Port and connect using a terminal emulator
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at 115200 bps, 8n1;
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- power on the board.
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i.MX6 SoloX SABRE SD
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--------------------
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To boot your newly created system on an i.MX6 SoloX SABRE SD Board
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(refer to the i.MX6 SoloX SABRE SD Quick Start Guide for guidance):
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- insert the SD card in the J4-SD4 socket at the bottom of the board;
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- Set the SW10, SW11 and SW12 DIP switches at the top of the board in
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their default position, to boot from SD card. Reference configuration:
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SW10
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1 2 3 4 5 6 7 8
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off off off off off off off off
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SW11
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1 2 3 4 5 6 7 8
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off off ON ON ON off off off
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SW12
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1 2 3 4 5 6 7 8
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off ON off off off off off off
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- connect a Micro USB cable to the J16 Debug Port at the bottom of the
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board. This is a dual UART debug port; connect to the first tty using
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a terminal emulator at 115200 bps, 8n1;
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- power on the board with the SW1-PWR switch at the top of the board.
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SABRE Auto
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----------
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To boot your newly created system on a SABRE Auto Board (refer to the SABRE for
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Automotive Infotainment Quick Start Guide for guidance):
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- insert the SD card in the CPU card SD card socket J14;
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- Set the S1, S2 and S3 DIP switches and J3 jumper to boot from SD on CPU card.
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Reference configuration:
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S1
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1 2 3 4 5 6 7 8 9 10
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off ON off off ON off off off off off
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S2
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1 2 3 4
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off off ON off
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S3
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1 2 3 4
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off off ON ON
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J3: 1-2
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- connect an RS-232 UART cable to CPU card debug port J18 UART DB9 and
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connect using a terminal emulator at 115200 bps, 8n1;
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- power on the board.
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Enjoy!
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References
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==========
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https://community.freescale.com/docs/DOC-95015
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https://community.freescale.com/docs/DOC-95017
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https://community.freescale.com/docs/DOC-99218
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