COM iMX6ULL Bootloader U-Boot - Revision history

Christoph at 07:11, 11 May 2020

2020-05-11T07:11:35Z

← Older revision		Revision as of 09:11, 11 May 2020
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	== Downloads ==		== Downloads ==
	Please have a look at the[[~~COM_iMX6ULL~~-D2#Download binaries/images\| i.MX6ULL Download binaries/images]] section.		Please have a look at the[[DHCOM iMX6ULL-D2#Download binaries/images\| i.MX6ULL Download binaries/images]] section.

	== Enter Bootloader Console ==		== Enter Bootloader Console ==

Christoph: /* Building U-Boot */

2020-03-17T13:09:44Z

Building U-Boot

← Older revision		Revision as of 15:09, 17 March 2020
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	== Building U-Boot ==		== Building U-Boot ==
	=== Prepare Build Environment ===		=== Prepare Build Environment ===
	* Download and start the Virtual Machine ~~based on Debian 8 (see [[COM_iMX6-D2#Downloads\| i.MX6 Downloads~~]])		{\| class="wikitable" style="width: 100%; color: #000000; background: #ffffff;" \|
	* Install Denx ELDK 5.4 to /opt (Available at [ftp://ftp.denx.de/pub/eldk/5.4/iso/ ftp://ftp.denx.de/pub/eldk/5.4/iso/]: we use eldk-5.4-armv7a.iso)		\|
			1. Download and start the [[Virtual Machine for Application Development]]
			\|}

	=== Get Sources ===		=== Get Sources ===
	{\| class="wikitable" style="width: 100%; color: #000000; background: #ffffff;" \|		{\| class="wikitable" style="width: 100%; color: #000000; background: #ffffff;" \|
	\|		\|
	1. Start a terminal on Linux<br/>		2. Start a terminal on Linux<br/>
	2. <tt># ''git clone [https://github.com/dh-electronics/u-boot-imx6qdl.git https://github.com/dh-electronics/u-boot-imx6qdl.git]''</tt><br/>		3. <tt># ''git clone [https://github.com/dh-electronics/u-boot-imx6qdl.git https://github.com/dh-electronics/u-boot-imx6qdl.git]''</tt><br/>
	3. <tt># ''cd u-boot-imx6qdl''</tt><br/>		4. <tt># ''cd u-boot-imx6qdl''</tt><br/>
	4. <tt># ''git checkout ~~release~~/v1.~~0.0.6~~'' ~~# checkout latest/required branch or tag~~</tt>		5. <tt># ''git checkout dev/2018.05_dhcom''</tt>
	\|}		\|}

	=== Start Build===		=== Start Build===
	{\| class="wikitable" style="width: 100%; color: #000000; background: #ffffff;" \|		{\| class="wikitable" style="width: 100%; color: #000000; background: #ffffff;" \|
	\|		\|
	6. <tt># ''./~~uboot_make [q_d dl s s_1g]~~''</tt> # ~~add argument~~ 'dl' ~~to build for Duallite (if unsure contact DH electronics)~~<br/>		6. <tt># ''make ARCH=arm CROSS_COMPILE=/opt/gcc-linaro-6.3.1-2017.05-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf- dh_imx6ull_emmc_defconfig''</tt><br/>
			7. <tt># ''make ARCH=arm CROSS_COMPILE=/opt/gcc-linaro-6.3.1-2017.05-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf- all''</tt>
	\|}		\|}
	* Your new <tt>u-boot.imx</tt> file is available in <tt>u-boot-imx6qdl/</tt>		Your new <tt>u-boot-with-spl.imx</tt> file is available in <tt>u-boot-imx6qdl/</tt>
	* If your build does fail please check content of uboot_make and adjust PATH.
	~~'''''Attention: Risk of bricking the Device!!'''''~~

Christoph: /* Display and Hardware settings */

2020-03-17T12:51:23Z

Display and Hardware settings

@@ Line 542: / Line 542: @@
 ==How to do Updates==
 [[DHCOM Update Mechanism|DHCOM Update Mechanism]]
 == Building U-Boot  ==

Christoph: /* How to do Updates */

2020-03-17T12:42:39Z

How to do Updates

← Older revision		Revision as of 14:42, 17 March 2020
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	==How to do Updates==		==How to do Updates==
	[[DHCOM Update Mechanism \|~~How to do Updates~~]]		[[DHCOM Update Mechanism\|DHCOM Update Mechanism]]

	== Display and Hardware settings ==		== Display and Hardware settings ==

Christoph: /* eMMC as USB Mass Storage */

2020-03-16T17:46:02Z

eMMC as USB Mass Storage

← Older revision		Revision as of 19:46, 16 March 2020
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	:The uLinuxEnv.txt file should have unix line ending. Also make sure that there is an empty line at the end of the file.		:The uLinuxEnv.txt file should have unix line ending. Also make sure that there is an empty line at the end of the file.

	=== ~~eMMC as~~ USB Mass Storage ===		=== USB Mass Storage ===
	:'''Example: Write an image to the eMMC using the "ums" command:'''		:'''Use device as USB Mass Storage'''

			:{\| class="wikitable"
			\|''<code>ums <USB_controller> <devtype> <dev[:part]></code>''
			\|}

			:'''Example: Write an image on PDK2 to the eMMC using the "ums" command:'''
	:1. Connect the USB OTG on the PDK2 with a suitable cable to a computer running Debian Linux		:1. Connect the USB OTG on the PDK2 with a suitable cable to a computer running Debian Linux
	:2. Go to the U-Boot console on the module		:2. Go to the U-Boot console on the module

Christoph: /* Environment */

2020-03-16T17:33:49Z

Environment

← Older revision		Revision as of 19:33, 16 March 2020
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	:'''Show ENV variables'''		:'''Show ENV variables'''

	:{\| class="wikitable"		:{\| class="wikitable" style="float:left; margin-right:1em"
			\|-
	\|''<code>env print</code>''		\|''<code>env print</code>''
	\|}		\|}
			{\| style="float:left; margin-right:1em; margin-top:1em"
			\|-
			\|or
			\|}
			{\| class="wikitable" style="float:left; margin-right:1em"
			\|-
			\|''<code>printenv</code>''
			\|}




	bootdelay=0		bootdelay=0
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	:'''Set ENV variables'''		:'''Set ENV variables'''

	:{\| class="wikitable"		:{\| class="wikitable" style="float:left; margin-right:1em"
			\|-
	\|''<code>env set <ENV name> <ENV value></code>''		\|''<code>env set <ENV name> <ENV value></code>''
	\|}		\|}
			{\| style="float:left; margin-right:1em; margin-top:1em"
			\|-
			\|or
			\|}
			{\| class="wikitable" style="float:left; margin-right:1em"
			\|-
			\|''<code>setenv <ENV name> <ENV value></code>''
			\|}




	:Example: <code>env set ipaddr 192.168.55.2</code>		:Example: <code>env set ipaddr 192.168.55.2</code>

	:Note: If you need to edit "bootcmd" it is necessary to insert ";" between the unique commands. ~~You can enter ";" at~~ the ~~command line with "\;"~~.		:Note: If you need to edit "bootcmd" it is necessary to insert <code>;</code> between the unique commands. Put the whole sequence in quotation marks <code>'...'</code>.

	:'''Save ENV variables'''		:'''Save ENV variables'''

	:{\| class="wikitable"		:{\| class="wikitable" style="float:left; margin-right:1em"
			\|-
	\|''<code>env save</code>''		\|''<code>env save</code>''
	\|}		\|}
			{\| style="float:left; margin-right:1em; margin-top:1em"
			\|-
			\|or
			\|}
			{\| class="wikitable" style="float:left; margin-right:1em"
			\|-
			\|''<code>saveenv</code>''
			\|}




	:'''Delete ENV variable'''		:'''Delete ENV variable'''
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	\|}		\|}

	:'''Revert to default ENV'''		:'''Revert to default ENV (all)'''

	:{\| class="wikitable"		:{\| class="wikitable"
	\|''<code>env default -a</code>''		\|''<code>env default -a</code>''
			\|}

			:'''Revert to default ENV (almost everything: preserve DH serial numbers and ethernet MAC addresses)'''

			:{\| class="wikitable"
			\|''<code>env default -ae</code>''
	\|}		\|}

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	:Example:		:Example:
	: <code>~~fatload~~ mmc 0 0x10000000 ~~uEnv~~.txt</code>		: <code>load mmc 0 0x10000000 uLinuxEnv.txt</code>
	: <code>env import -t 0x10000000 $filesize</code>		: <code>env import -t 0x10000000 $filesize</code>

	:Important:		:Important:
	:The ~~uEnv~~.txt file should ~~be in~~ unix ~~format~~. Also make sure that there is an empty line at the end of the file.		:The uLinuxEnv.txt file should have unix line ending. Also make sure that there is an empty line at the end of the file.

	~~bootargs=console=ttyO0,115200n8 root=/dev/mmcblk0p2 mem=128M rootwait~~
	~~bootcmd=mmc rescan; fatload mmc 0 0x82000000 uImage; bootm 0x82000000~~
	~~uenvcmd=boot~~

	=== eMMC as USB Mass Storage ===		=== eMMC as USB Mass Storage ===

Christoph: /* I2C */

2020-03-13T16:17:16Z

I2C

← Older revision		Revision as of 18:17, 13 March 2020
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	=== I2C ===		=== I2C ===
			:'''Set current I2C bus'''

			:{\| class="wikitable"
			\|''<code>i2c dev <I2C bus></code>''
			\|}

			:Example: <code>i2c dev 0</code>

			:Description: Set current I2C bus to 0.

			Valid buses on i.MX6ULL:
			0 = DHCOM I2C port 1
			1 = DHCOM I2C port 2

	:'''List available devices'''		:'''List available devices'''
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	\|}		\|}

	~~Valid devices~~:		:Description: Test for and show device(s) on the I2C bus.
	~~0 = DHCOM~~ I2C ~~port 1~~
	~~1 = DHCOM I2C port 2~~		Valid chip addresses: 32 50 51 52 53 58 59
	~~2 = i.MX6 OnBoard I2C port~~

	:'''Read'''		:'''Read'''

Christoph: /* U-boot console commands */

2020-03-13T15:58:52Z

U-boot console commands

@@ Line 373: / Line 373: @@
 |''<code> cp[.b, .w, .l] <source> <destination> <count></code>''
 |}
 === I2C ===

Christoph: /* Ethernet */

2020-03-13T15:57:29Z

Ethernet

← Older revision		Revision as of 17:57, 13 March 2020
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	:Example: <code>ping 192.168.55.32</code>		:Example: <code>ping 192.168.55.32</code>

	~~:'''Read PHY register via MII interface'''~~

	~~:{\| class="wikitable"~~
	~~\|''<code>mii dump <PHY address> <PHY register></code>''~~
	\|}

	~~:Example: <code>mii dump 0 0</code>~~

	~~:Remark: The standard MII registers 0-5 are supported by this command. When you are working with a DHCOM i.MX6 module only PHY address "0" is allowed.~~

	=== Unzip ===		=== Unzip ===

Christoph: /* FAT - EXT2 - EXT4 - Filesystem */

2020-03-13T15:07:50Z

FAT - EXT2 - EXT4 - Filesystem

← Older revision		Revision as of 17:07, 13 March 2020
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	:Description: Read 512kByte (device block size is 512Byte) from the eMMC offset 10MByte.		:Description: Read 512kByte (device block size is 512Byte) from the eMMC offset 10MByte.

	=== ~~FAT - EXT2 - EXT4 -~~ Filesystem ===		=== Filesystem ===

	:'''NOTE: ~~All EXT2 commands must also be used for ext4~~'''		:'''NOTE: File system types are recognized automatically'''

	~~:'''Show Filesystem information'''~~

	~~:{\| class="wikitable"~~
	~~\|''<code>fatinfo <interface> <device></code>''~~
	\|}

	~~:Example: <code>fatinfo mmc 1</code>~~

	~~Interface: MMC~~
	~~Device 1: Vendor: Man 094150 Snr 266e068c Rev: 1.0 Prod: AF UD~~
	~~Type: Removable Hard Disk~~
	~~Capacity: 121.2 MB = 0.1 GB (248320 x 512)~~
	~~Partition 1: Filesystem: FAT16 "NO NAME "~~

	:'''List files'''		:'''List files'''

	:{\| class="wikitable"		:{\| class="wikitable"
	\|''<code>~~fatls~~ <interface> <device~~> <directory></code>''~~		\|''<code>ls <interface> <device[:partition]> <directory></code>''
	\|}

	:~~{\| class="wikitable"~~
	~~\|''<code>ext2ls <interface> <device~~> <directory></code>''
	\|}		\|}

	:Example 1: <code>~~fatls~~ mmc 1~~</code>~~		:Example 1: <code>ls mmc 1</code>

	~~:Example 2: <code>fatls mmc 1 /folder~~</code>

	:~~'''Load Files from SD Card to SDRAM'''~~		:Example 2: <code>ls mmc 1 /folder</code>

	:~~{\| class="wikitable"~~		:'''Load Files from device to SDRAM'''
	\|''~~<code>fatload <interface> <~~device~~> <~~SDRAM ~~address> <directory+filename></code>~~''
	\|}

	:{\| class="wikitable"		:{\| class="wikitable"
	\|''<code>~~ext2load~~ <interface> <device> <SDRAM address> <directory+filename></code>''		\|''<code>load <interface> <device[:partition]> <SDRAM address> <directory+filename></code>''
	\|}		\|}

	:Example 1: <code>~~fatload~~ mmc 1 10100000 nk.gz</code>		:Example 1: <code>load mmc 1 10100000 nk.gz</code>

	:Example 2: <code>~~fatload~~ mmc 1 10100000 /folder/nk.gz</code>		:Example 2: <code>load mmc 1 10100000 /folder/nk.gz</code>

	=== Ethernet ===		=== Ethernet ===