Kernel status - Revision history

Kingu: Redirected page to Ångström#Kernel status

2013-11-06T11:11:20Z

Redirected page to Ångström#Kernel status

← Older revision		Revision as of 11:11, 6 November 2013
Line 1:		Line 1:
	#REDIRECT [[~~http://pandorawiki.org/%C3%85ngstr%C3%B6m~~#Kernel_status]]		#REDIRECT [[Ångström#Kernel_status]]

Kingu: Redirected page to Http://pandorawiki.org/Ångström#Kernel status

2013-11-06T11:10:29Z

Redirected page to Http://pandorawiki.org/Ångström#Kernel status

← Older revision		Revision as of 11:10, 6 November 2013
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	~~= Introduction =~~		#REDIRECT [[http://pandorawiki.org/%C3%85ngstr%C3%B6m#Kernel_status]]
	The first [[firmware]] release was based on a heavily patched linux-2.6.27-omap1 kernel. linux-omap used to be OMAP community kernel fork, nowadays its code was either merged to mainline or dropped. Further OMAP development continues on mainline kernels, linux-omap tree is mainly used to queue developed code to mainline.

	~~Current firmware releases are based on 3.x kernel series.~~

	~~= Status =~~
	~~Driver support in 3.x series is more or less complete, however not all parts are merged to mainline kernel due to various reasons.~~

	~~== merged code (already in mainline as of 3.4) ==~~
	* board support (enables UART, I2C, SPI, RTC, MMC{1,2,3}, NAND, OTG, EHCI, gpio-keys, leds-gpio, keypad, touchscreen, regulators)
	* sound: ALSA ASoC machine driver
	* bq27500 fuel gauge
	* LCD panel driver
	* wl1251 [[WiFi]] driver glue (portions only in 2.6.37)
	* charging (partial only, 2.6.37)
	* wl1251 complete powerdown/suspend using runtime_pm (2.6.38).
	* backlight driver (3.4)

	~~this doesn't list various bugfix patches to get above working :)~~

	~~== not merged ==~~
	~~now in openpandora.org GIT (mainline merge status in brackets)~~
	* nubs (aka vsense, needs rework for mainline)
	* keypad fn handling (not allowed in mainline)
	* PWM LEDs (needs rework)
	* Overclocking support
	* some charging bits (too many hacks)
	* various random hacks that benefit pandora but may harm other devices, hence mainline incompatible

	~~= openpandora.org git structure =~~
	~~{{merge\|Firmware governance}}~~
	~~Support for various kernels is available in pandora-XX branches or tags, XX corresponds to last part of kernel version number. 2.6.27 is an exception, it's in pandora-27-omap1 branch.~~

	Branches based on pre-release -rc kernels will be often rebased. This means you can't do 'git pull' on them, use 'git fetch; git reset --hard origin/pandora-XX' instead. '''Warning''': this will destroy all your changes (even if they are commited), backup them first!

	~~See also:~~
	* [[Firmware governance]]

	~~= Configuring newer kernels =~~
	~~When compiling mainline kernel, use~~
	~~<source lang="bash">make omap2plus_defconfig</source>~~
	~~for openpandora.org kernels you can use omap3_pandora_defconfig~~
	~~<source lang="bash">make omap3_pandora_defconfig</source>~~
	~~after either of those are run, you can tune the configuration for your needs:~~
	~~<source lang="bash">make menuconfig</source>~~
	~~Now you should be able to build a working kernel. More info available at [[Kernel build instructions]].~~

	~~= Running =~~
	~~Easiest way is to place your new uImage to root of SD (FAT or ext2, ext2 may need a bootloader update) along with a file named 'autoboot.txt', which contains u-boot commands such as:~~
	~~fatload mmc 0 0x80300000 uImage; bootm 0x80300000~~
	~~Kernel bootargs can be changed by adding 'setenv' line before fatload:~~
	~~setenv bootargs debug root=...~~

	~~== serial port ==~~
	~~In an unlikely event that you can get serial output from EXT port, be aware that serial device has changed several times (due to the driver and port configuration changes in the kernel):~~
	* openpandora.org 2.6.27: ttyS0
	* mainline upto 2.6.36: ttyS2
	* mainline/openpandora.org 2.6.37 and up: ttyO2
	~~This is relevant for console= bootarg.~~

	~~= Contributing =~~
	~~Help is always welcome, usually in form of testing or writing patches. In most cases it's best to file a bug report or feature request in the~~ [~~http://bugs.openpandora.org bug tracker] so that things don't get lost.~~

	~~== Submitting patches ==~~
	It's best to send formal GIT-generated patch so that you get proper credit for your work and to make applying the patch easier. You can also add 'Signed-off-by' line ('-s' on 'git commit' will do it for you), which has [http://~~elinux~~.org/~~Developer_Certificate_Of_Origin the same meaning as for mainline Linux].~~

	~~So basic workflow would be:~~
	~~<source lang="bash">~~
	~~<make changes>~~
	~~git config --global user.name "My Name"~~
	~~git config --global user.email "myname@domain.com"~~
	~~git add <changed files>~~
	~~git commit~~
	~~git format-patch -o /somewhere/ -1~~
	~~</source>~~
	~~Then create a new feature request in bugtracker and attach the generated file(s), or send them to the [[Firmware_governance~~#~~Mailing_list\|mailing list]], or post them on the forums, whatever is more convenient to you.~~

	~~[[Category:Official OpenPandora Development]]~~
	~~[[Category:Kernel~~]]

Kingu: removed dead links and updated

2013-10-22T18:28:13Z

removed dead links and updated

← Older revision		Revision as of 18:28, 22 October 2013
Line 9:		Line 9:
	== merged code (already in mainline as of 3.4) ==		== merged code (already in mainline as of 3.4) ==
	* board support (enables UART, I2C, SPI, RTC, MMC{1,2,3}, NAND, OTG, EHCI, gpio-keys, leds-gpio, keypad, touchscreen, regulators)		* board support (enables UART, I2C, SPI, RTC, MMC{1,2,3}, NAND, OTG, EHCI, gpio-keys, leds-gpio, keypad, touchscreen, regulators)
	* sound: [[ALSA]] ASoC machine driver		* sound: ALSA ASoC machine driver
	* [[bq27500]] fuel gauge		* bq27500 fuel gauge
	* LCD panel driver		* LCD panel driver
	* wl1251 [[~~wifi driver~~]] glue (portions only in 2.6.37)		* wl1251 [[WiFi]] driver glue (portions only in 2.6.37)
	* charging (partial only, 2.6.37)		* charging (partial only, 2.6.37)
	* [[wl1251]] complete powerdown/suspend using runtime_pm (2.6.38).		* wl1251 complete powerdown/suspend using runtime_pm (2.6.38).
	* backlight driver (3.4)		* backlight driver (3.4)

Line 47:		Line 47:

	= Running =		= Running =
	Easiest way is to place your new uImage to root of SD ([[FAT]] or [[ext2]], ext2 may need a bootloader update) along with a file named '[[autoboot.txt]]', which contains u-boot commands such as:		Easiest way is to place your new uImage to root of SD (FAT or ext2, ext2 may need a bootloader update) along with a file named 'autoboot.txt', which contains u-boot commands such as:
	fatload mmc 0 0x80300000 uImage; bootm 0x80300000		fatload mmc 0 0x80300000 uImage; bootm 0x80300000
	Kernel bootargs can be changed by adding 'setenv' line before fatload:		Kernel bootargs can be changed by adding 'setenv' line before fatload:

Notaz: update out-of-date stuff

2012-08-31T16:20:28Z

update out-of-date stuff

← Older revision		Revision as of 16:20, 31 August 2012
Line 1:		Line 1:
	= Introduction =		= Introduction =
	The first [[firmware]] release is based on a heavily patched linux-2.6.27-omap1 kernel. linux-omap used to be OMAP community kernel fork, nowadays its code was either merged to mainline or dropped. Further OMAP development continues on mainline kernels, linux-omap tree is mainly used to queue developed code to mainline. ~~So most of the interesting features that 2~~.~~6.27 lack (like sleep modes) are available there, but development effort is needed to port all drivers first~~.		The first [[firmware]] release was based on a heavily patched linux-2.6.27-omap1 kernel. linux-omap used to be OMAP community kernel fork, nowadays its code was either merged to mainline or dropped. Further OMAP development continues on mainline kernels, linux-omap tree is mainly used to queue developed code to mainline.

			Current firmware releases are based on 3.x kernel series.

	= Status =		= Status =
	~~This is mostly about pandora specific~~ support ~~for 2~~.~~6.35~~ or ~~newer. Things that~~ are ~~already in~~ mainline ~~and come "for free" (like SD card support) are not mentioned~~.		Driver support in 3.x series is more or less complete, however not all parts are merged to mainline kernel due to various reasons.

	== merged code (already in mainline as of 2.~~6.36~~) ==		== merged code (already in mainline as of 3.4) ==
	* board support (enables UART, I2C, SPI, RTC, MMC{1,2,3}, NAND, OTG, EHCI, gpio-keys, leds-gpio, keypad, touchscreen, regulators)		* board support (enables UART, I2C, SPI, RTC, MMC{1,2,3}, NAND, OTG, EHCI, gpio-keys, leds-gpio, keypad, touchscreen, regulators)
	* sound: [[ALSA]] ASoC machine driver		* sound: [[ALSA]] ASoC machine driver
Line 13:		Line 15:
	* charging (partial only, 2.6.37)		* charging (partial only, 2.6.37)
	* [[wl1251]] complete powerdown/suspend using runtime_pm (2.6.38).		* [[wl1251]] complete powerdown/suspend using runtime_pm (2.6.38).
			* backlight driver (3.4)

	this doesn't list various bugfix patches to get above working :)		this doesn't list various bugfix patches to get above working :)

	== ~~finished code, but~~ not merged==		== not merged ==
	now in openpandora.org GIT (mainline merge status in brackets)		now in openpandora.org GIT (mainline merge status in brackets)
	* nubs (aka vsense, needs rework for mainline)		* nubs (aka vsense, needs rework for mainline)
	* backlight driver (needs rework)
	* keypad fn handling (not allowed in mainline)		* keypad fn handling (not allowed in mainline)
	* PWM LEDs (needs rework)		* PWM LEDs (needs rework)
			* Overclocking support
	~~== missing stuff ==~~		* some charging bits (too many hacks)
	* ~~Charging missing~~ bits.		* various random hacks that benefit pandora but may harm other devices, hence mainline incompatible
	* Bluetooth. 2.6.27 has rather old Nokia code (~~not mainlined~~), Nokia device/maemo kernels need to be checked and later versions integrated from there. There is alternative to this: expose UART port and try to use userspace [[bluez]] drivers, but this could result in less efficient power saving (if any).
	* ~~low [[power modes]]. This requires lots of testing~~, ~~support in drivers and board files.~~
	* DSP mess: [http://elinux.org/BeagleBoard/DSP_Clarification gateway, bridge or link] ?
	* more things that I forgot

	= openpandora.org git structure =		= openpandora.org git structure =
Line 52:		Line 50:
	fatload mmc 0 0x80300000 uImage; bootm 0x80300000		fatload mmc 0 0x80300000 uImage; bootm 0x80300000
	Kernel bootargs can be changed by adding 'setenv' line before fatload:		Kernel bootargs can be changed by adding 'setenv' line before fatload:
	setenv bootargs debug ~~console~~=~~ttyO2,115200n8~~ ...		setenv bootargs debug root=...

	== serial port ==		== serial port ==

Notaz: Submitting patches

2012-08-31T15:15:45Z

Submitting patches

← Older revision		Revision as of 15:15, 31 August 2012
Line 65:		Line 65:

	== Submitting patches ==		== Submitting patches ==
	It's best to send formal GIT-generated patch so that you get proper credit for your work and to make applying the patch easier. You also ~~should~~ add 'Signed-off-by' line ('-s' on 'git commit' will do it for you), which has [http://elinux.org/Developer_Certificate_Of_Origin the same meaning as for mainline Linux].		It's best to send formal GIT-generated patch so that you get proper credit for your work and to make applying the patch easier. You can also add 'Signed-off-by' line ('-s' on 'git commit' will do it for you), which has [http://elinux.org/Developer_Certificate_Of_Origin the same meaning as for mainline Linux].

	So basic workflow would be:		So basic workflow would be:
Line 73:		Line 73:
	git config --global user.email "myname@domain.com"		git config --global user.email "myname@domain.com"
	git add <changed files>		git add <changed files>
	git commit -s		git commit
	git format-patch -o /somewhere/ -1		git format-patch -o /somewhere/ -1
	</source>		</source>
	Then create a new feature request in bugtracker and attach the generated file(s).		Then create a new feature request in bugtracker and attach the generated file(s), or send them to the [[Firmware_governance#Mailing_list\|mailing list]], or post them on the forums, whatever is more convenient to you.

	[[Category:Official OpenPandora Development]]		[[Category:Official OpenPandora Development]]
	[[Category:Kernel]]		[[Category:Kernel]]

ABC: formating

2011-04-22T12:47:37Z

formating

← Older revision		Revision as of 12:47, 22 April 2011
Line 1:		Line 1:
	= Introduction =		= Introduction =
	The first firmware release is based on a heavily patched linux-2.6.27-omap1 kernel. linux-omap used to be OMAP community kernel fork, nowadays its code was either merged to mainline or dropped. Further OMAP development continues on mainline kernels, linux-omap tree is mainly used to queue developed code to mainline. So most of the interesting features that 2.6.27 lack (like sleep modes) are available there, but development effort is needed to port all drivers first.		The first [[firmware]] release is based on a heavily patched linux-2.6.27-omap1 kernel. linux-omap used to be OMAP community kernel fork, nowadays its code was either merged to mainline or dropped. Further OMAP development continues on mainline kernels, linux-omap tree is mainly used to queue developed code to mainline. So most of the interesting features that 2.6.27 lack (like sleep modes) are available there, but development effort is needed to port all drivers first.

	= Status =		= Status =
Line 7:		Line 7:
	== merged code (already in mainline as of 2.6.36) ==		== merged code (already in mainline as of 2.6.36) ==
	* board support (enables UART, I2C, SPI, RTC, MMC{1,2,3}, NAND, OTG, EHCI, gpio-keys, leds-gpio, keypad, touchscreen, regulators)		* board support (enables UART, I2C, SPI, RTC, MMC{1,2,3}, NAND, OTG, EHCI, gpio-keys, leds-gpio, keypad, touchscreen, regulators)
	* sound: ALSA ASoC machine driver		* sound: [[ALSA]] ASoC machine driver
	* bq27500 fuel gauge		* [[bq27500]] fuel gauge
	* LCD panel driver		* LCD panel driver
	* wl1251 wifi driver glue (portions only in 2.6.37)		* wl1251 [[wifi driver]] glue (portions only in 2.6.37)
	* charging (partial only, 2.6.37)		* charging (partial only, 2.6.37)
	* wl1251 complete powerdown/suspend using runtime_pm (2.6.38).		* [[wl1251]] complete powerdown/suspend using runtime_pm (2.6.38).

	this doesn't list various bugfix patches to get above working :)		this doesn't list various bugfix patches to get above working :)

	== finished code, but not merged (now in openpandora.org GIT~~) ==~~		== finished code, but not merged==
	(mainline merge status in brackets)		now in openpandora.org GIT (mainline merge status in brackets)
	* nubs (aka vsense, needs rework for mainline)		* nubs (aka vsense, needs rework for mainline)
	* backlight driver (needs rework)		* backlight driver (needs rework)
Line 25:		Line 25:
	== missing stuff ==		== missing stuff ==
	* Charging missing bits.		* Charging missing bits.
	* Bluetooth. 2.6.27 has rather old Nokia code (not mainlined), Nokia device/maemo kernels need to be checked and later versions integrated from there. There is alternative to this: expose UART port and try to use userspace bluez drivers, but this could result in less efficient power saving (if any).		* Bluetooth. 2.6.27 has rather old Nokia code (not mainlined), Nokia device/maemo kernels need to be checked and later versions integrated from there. There is alternative to this: expose UART port and try to use userspace [[bluez]] drivers, but this could result in less efficient power saving (if any).
	* low power modes. This requires lots of testing, support in drivers and board files.		* low [[power modes]]. This requires lots of testing, support in drivers and board files.
	* DSP mess: [http://elinux.org/BeagleBoard/DSP_Clarification gateway, bridge or link] ?		* DSP mess: [http://elinux.org/BeagleBoard/DSP_Clarification gateway, bridge or link] ?
	* more things that I forgot		* more things that I forgot

	= openpandora.org git structure =		= openpandora.org git structure =
			{{merge\|Firmware governance}}
	Support for various kernels is available in pandora-XX branches or tags, XX corresponds to last part of kernel version number. 2.6.27 is an exception, it's in pandora-27-omap1 branch.		Support for various kernels is available in pandora-XX branches or tags, XX corresponds to last part of kernel version number. 2.6.27 is an exception, it's in pandora-27-omap1 branch.

	Branches based on pre-release -rc kernels will be often rebased. This means you can't do 'git pull' on them, use 'git fetch; git reset --hard origin/pandora-XX' instead. '''Warning''': this will destroy all your changes (even if they are commited), backup them first!		Branches based on pre-release -rc kernels will be often rebased. This means you can't do 'git pull' on them, use 'git fetch; git reset --hard origin/pandora-XX' instead. '''Warning''': this will destroy all your changes (even if they are commited), backup them first!

			See also:
			* [[Firmware governance]]

	= Configuring newer kernels =		= Configuring newer kernels =
	When compiling mainline kernel, use		When compiling mainline kernel, use
	make omap2plus_defconfig		<source lang="bash">make omap2plus_defconfig</source>
	for openpandora.org kernels you can use omap3_pandora_defconfig		for openpandora.org kernels you can use omap3_pandora_defconfig
	make omap3_pandora_defconfig		<source lang="bash">make omap3_pandora_defconfig</source>
	after either of those are run, you can tune the configuration for your needs:		after either of those are run, you can tune the configuration for your needs:
	make menuconfig		<source lang="bash">make menuconfig</source>
	Now you should be able to build a working kernel. More info available at [[Kernel build instructions]].		Now you should be able to build a working kernel. More info available at [[Kernel build instructions]].

	= Running =		= Running =
	Easiest way is to place your new uImage to root of SD (FAT or ext2, ext2 may need a bootloader update) along with a file named 'autoboot.txt', which contains u-boot commands such as:		Easiest way is to place your new uImage to root of SD ([[FAT]] or [[ext2]], ext2 may need a bootloader update) along with a file named '[[autoboot.txt]]', which contains u-boot commands such as:
	fatload mmc 0 0x80300000 uImage; bootm 0x80300000		fatload mmc 0 0x80300000 uImage; bootm 0x80300000
	Kernel bootargs can be changed by adding 'setenv' line before fatload:		Kernel bootargs can be changed by adding 'setenv' line before fatload:
	setenv bootargs debug console=ttyO2,115200n8 ...		setenv bootargs debug console=ttyO2,115200n8 ...

	== serial port ==		== serial port ==
	In an unlikely event that you can get serial output from EXT port, be aware that serial device has changed several times (due to the driver and port configuration changes in the kernel):		In an unlikely event that you can get serial output from EXT port, be aware that serial device has changed several times (due to the driver and port configuration changes in the kernel):

ABC: /* Submitting patches */ cat

2011-04-19T14:31:38Z

Submitting patches: cat

← Older revision		Revision as of 14:31, 19 April 2011
Line 74:		Line 74:

	[[Category:Official OpenPandora Development]]		[[Category:Official OpenPandora Development]]
			[[Category:Kernel]]

Ivanovic: add the "official OpenPandora Development" category

2011-02-19T17:26:00Z

add the "official OpenPandora Development" category

← Older revision		Revision as of 17:26, 19 February 2011
Line 72:		Line 72:
	</source>		</source>
	Then create a new feature request in bugtracker and attach the generated file(s).		Then create a new feature request in bugtracker and attach the generated file(s).

			[[Category:Official OpenPandora Development]]

Notaz: update

2011-01-17T16:36:28Z

update

← Older revision		Revision as of 16:36, 17 January 2011
Line 12:		Line 12:
	* wl1251 wifi driver glue (portions only in 2.6.37)		* wl1251 wifi driver glue (portions only in 2.6.37)
	* charging (partial only, 2.6.37)		* charging (partial only, 2.6.37)
			* wl1251 complete powerdown/suspend using runtime_pm (2.6.38).

	this doesn't list various bugfix patches to get above working :)		this doesn't list various bugfix patches to get above working :)
Line 25:		Line 26:
	* Charging missing bits.		* Charging missing bits.
	* Bluetooth. 2.6.27 has rather old Nokia code (not mainlined), Nokia device/maemo kernels need to be checked and later versions integrated from there. There is alternative to this: expose UART port and try to use userspace bluez drivers, but this could result in less efficient power saving (if any).		* Bluetooth. 2.6.27 has rather old Nokia code (not mainlined), Nokia device/maemo kernels need to be checked and later versions integrated from there. There is alternative to this: expose UART port and try to use userspace bluez drivers, but this could result in less efficient power saving (if any).
	* wl1251 complete powerdown/suspend using runtime_pm (2.6.27 does it with hacks).
	* low power modes. This requires lots of testing, support in drivers and board files.		* low power modes. This requires lots of testing, support in drivers and board files.
	* DSP mess: [http://elinux.org/BeagleBoard/DSP_Clarification gateway, bridge or link] ?		* DSP mess: [http://elinux.org/BeagleBoard/DSP_Clarification gateway, bridge or link] ?

Notaz at 16:33, 17 January 2011

2011-01-17T16:33:29Z

← Older revision		Revision as of 16:33, 17 January 2011
Line 42:		Line 42:
	after either of those are run, you can tune the configuration for your needs:		after either of those are run, you can tune the configuration for your needs:
	make menuconfig		make menuconfig
	Now you should be able to build a working kernel. More info available at [~~Kernel_build_instructions~~]		Now you should be able to build a working kernel. More info available at [[Kernel build instructions]].

	= Running =		= Running =