TS-7500 - Revision history

Cargoudel: delete old info; reference main site

2016-07-03T18:29:16Z

delete old info; reference main site

@@ Line 1: / Line 1: @@
 ==Overview ==
-The TS-7500 is based on a Cavium CNS2132 (aka Star Semi STR8132) which contains a Faraday FA-526 core which basically resembles a ARM920T but has NO thumb or thumb interworking support
+The TS-7500 is based on a Cavium CNS2132 (aka Star Semi STR8132) which contains a Faraday FA-526 core and as a ARMv4 it has NO thumb or thumb interworking support. Most major linux distributions have decided to make ARMv4T (not ARMv4) the minimum supported architecture for their packages so OE is the best way to roll your own. [http://wiki.debian.org/ArmEabiPort#ChoiceofminimumCPU see the Debian discussion]. That is why you need to use openembedded.
-==Machine==
+==Basic Setup==
-A ts75xx.conf and tune-fa526.inc  are here
+[http://wiki.embeddedarm.com/wiki/TS-75xx_OpenEmbedded See here for the image and instructions for oe]
-[http://mirror.lug.udel.edu/pub/lug-udel/projects/ts7500/ ts7500/]
+[http://wiki.embeddedarm.com/wiki/TS-7500 Main Wiki]
 ==Kernel==
-The kernel that comes default from Technologic Systems TS-7500 only supports OABI, so we first need to recompile the kernel [ftp://ftp.embeddedarm.com/ts-arm-sbc/ts-7500-linux/sources/ linux-2.6.24-cavium_source_aug052010.tar.gz] and see [http://www.embeddedarm.com/about/resource.php?item=410#compile this] for a reference for how-to get to kernel on your board.
+If you need to build your own kernel
+See https://github.com/embeddedarm/linux-3.4-ts75xx/network
-We also need to replace the modules.tar.gz from the initrd partition used during the bootstrap process. We need to strip the debugging info from the modules so that the tarball is <200KiB or so.
+==Cflags==
-Or you can use the prebuild kernel from here:
+These flags let you build code with almost any gcc-arm toolkit.
-[http://mirror.lug.udel.edu/pub/lug-udel/projects/ts7500/ ts7500/]
+-march=armv4 -mno-thumb-interwork -marm -mfloat-abi=soft

Cargoudel: typo and note about linuxrc

2011-03-04T03:52:21Z

typo and note about linuxrc

← Older revision		Revision as of 03:52, 4 March 2011
Line 40:		Line 40:
	root@ts75xx:/etc/rcS.d# ls		root@ts75xx:/etc/rcS.d# ls
	S02banner S38devpts.sh S39hostname.sh		S02banner S38devpts.sh S39hostname.sh

			You will also need to edit/tweak the linuxrc script on the SPI flash or SD part initrd partition using the method in the offical TS-7500 Software Guide. An example will be posted [http://mirror.lug.udel.edu/pub/lug-udel/projects/ts7500/ here], where we have replaced the fourth partition which is usally VFAT with a EXT2/3 /var parition.

	There is a opkg Angstrom repository for this device hosted by the University of Delaware Linux User Group		There is a opkg Angstrom repository for this device hosted by the University of Delaware Linux User Group
Line 68:		Line 70:

	We also need to replace the modules.tar.gz from the initrd partition used during the bootstrap process. We need to strip the debugging info from the modules so that the tarball is <200KiB or so.		We also need to replace the modules.tar.gz from the initrd partition used during the bootstrap process. We need to strip the debugging info from the modules so that the tarball is <200KiB or so.
	find lib/modules/ -name '*.ko' -exec		find lib/modules/ -name '*.ko' -exec /oe/build/tmp/sysroots/i686-linux/usr/armv4/bin/arm-angstrom-linux-gnueabi-strip -S {} \;
	/oe/build/tmp/sysroots/i686-linux/usr/armv4/bin/arm-angstrom-linux-gnueabi-strip
	-S {} \;
	tar cfz modules.tar.gz lib/modules/2.6.35.11/kernel/drivers/connector/cn.ko lib/modules/2.6.35.11/kernel/drivers/scsi/scsi_mod.ko lib/modules/2.6.35.11/kernel/drivers/scsi/scsi_wait_scan.ko lib/modules/2.6.35.11/kernel/drivers/scsi/sd_mod.ko lib/modules/2.6.35.11/kernel/drivers/scsi/sg.ko lib/modules/2.6.35.11/kernel/drivers/star/str8100/crash.ko lib/modules/2.6.35.11/kernel/drivers/star/str8100/inthandler.ko lib/modules/2.6.35.11/kernel/drivers/usb/core/usbcore.ko lib/modules/2.6.35.11/kernel/drivers/usb/host/ehci-hcd.ko lib/modules/2.6.35.11/kernel/drivers/usb/storage/usb-storage.ko		tar cfz modules.tar.gz lib/modules/2.6.35.11/kernel/drivers/connector/cn.ko lib/modules/2.6.35.11/kernel/drivers/scsi/scsi_mod.ko lib/modules/2.6.35.11/kernel/drivers/scsi/scsi_wait_scan.ko lib/modules/2.6.35.11/kernel/drivers/scsi/sd_mod.ko lib/modules/2.6.35.11/kernel/drivers/scsi/sg.ko lib/modules/2.6.35.11/kernel/drivers/star/str8100/crash.ko lib/modules/2.6.35.11/kernel/drivers/star/str8100/inthandler.ko lib/modules/2.6.35.11/kernel/drivers/usb/core/usbcore.ko lib/modules/2.6.35.11/kernel/drivers/usb/host/ehci-hcd.ko lib/modules/2.6.35.11/kernel/drivers/usb/storage/usb-storage.ko

Cargoudel: new kernel info

2011-03-04T03:33:28Z

new kernel info

← Older revision		Revision as of 03:33, 4 March 2011
Line 2:		Line 2:
	The TS-7500 is based on a Cavium CNS2132 (aka Star Semi STR8132) which contains a Faraday FA-526 core which basically resembles a ARM920T but has NO thumb or thumb interworking support		The TS-7500 is based on a Cavium CNS2132 (aka Star Semi STR8132) which contains a Faraday FA-526 core which basically resembles a ARM920T but has NO thumb or thumb interworking support
	which makes it not a fully EABI compliant architecture. However, as of GCC-4.4.2 (recommend at least GCC-4.4.4) EABI binaries can be built for ARMv4 architectures like this one. This guide helps you setup a openembedded toolchain and new kernel w/ EABI support. Most major linux distributions have decided to make ARMv4T (not ARMv4) the minimum supported architecture for their packages so OE is the best way to roll your own EABI Linux for this board. [http://wiki.debian.org/ArmEabiPort#ChoiceofminimumCPU see the Debian discussion]		which makes it not a fully EABI compliant architecture. However, as of GCC-4.4.2 (recommend at least GCC-4.4.4) EABI binaries can be built for ARMv4 architectures like this one. This guide helps you setup a openembedded toolchain and new kernel w/ EABI support. Most major linux distributions have decided to make ARMv4T (not ARMv4) the minimum supported architecture for their packages so OE is the best way to roll your own EABI Linux for this board. [http://wiki.debian.org/ArmEabiPort#ChoiceofminimumCPU see the Debian discussion]

	~~==Kernel==~~
	The kernel that comes default from Technologic Systems TS-7500 only supports OABI, so we first need to recompile the kernel [ftp://ftp.embeddedarm.com/ts-arm-sbc/ts-7500-linux/sources/linux-2.6.24-cavium_source_aug052010.tar.gz linux-2.6.24-cavium_source_aug052010.tar.gz] and see [http://www.embeddedarm.com/about/resource.php?item=410#compile this] for a reference for how-to get to kernel on your board.

	~~Only a few changes need to be make to the default TS-7500 kernel .config~~
	~~#this first two are the most important options~~
	~~CONFIG_AEABI=y~~
	~~#allows old OABI to still work like in the TS-7500's default initrd~~
	~~CONFIG_OABI_COMPAT=y~~
	~~#lets be able to check our configuration~~
	~~CONFIG_IKCONFIG=y~~
	~~CONFIG_IKCONFIG_PROC=y~~
	~~#speed up floating point (not for scientific computing)~~
	~~# CONFIG_FPE_NWFPE is not set~~
	~~CONFIG_FPE_FASTFPE=y~~

	~~Or you can use the prebuild kernel from here:~~
	~~[http://mirror.lug.udel.edu/pub/lug-udel/projects/ts7500/ ts7500/]~~
	~~make sure to cp [http://mirror.lug.udel.edu/pub/lug-udel/projects/ts7500/modules.tar.gz modules.tar.gz] into your initrd partition overwriting the old one.~~

	==Machine==		==Machine==

	A ts75xx.conf and tune-fa526.inc are here		A ts75xx.conf and tune-fa526.inc are here
	[http://mirror.lug.udel.edu/pub/lug-udel/projects/ts7500/ ts7500/]		[http://mirror.lug.udel.edu/pub/lug-udel/projects/ts7500/ ts7500/]
	but they should be added into OE soon.		but they should be added into OE soon.

	Binaries must always be built with these flags to function properly. If you do an objdump of your compiled binaries you should see no thumb type instructions (like B, BL, BX, BLX, and BXJ). Use -ffast-math to speed up your software floating point operations, but you can't set it globally since some low-level packages will refuse to build with that flag.		Binaries must always be built with these flags to function properly. If you do an objdump of your compiled binaries you should see no thumb type instructions (like B, BL, BX, BLX, and BXJ). Use -ffast-math to speed up your software floating point operations, but you can't set it globally since some low-level packages will refuse to build with that flag.

	gcc compiler cflags		gcc compiler cflags
	-march=armv4 -mno-thumb-interwork -mno-thumb -mfloat-abi=soft		-march=armv4 -mno-thumb-interwork -mno-thumb -mfloat-abi=soft

	==Angstrom==		==Angstrom==

	There is a couple of changes you need to make to Angstrom in my experience to get it working		There is a couple of changes you need to make to Angstrom in my experience to get it working

	distro/include/angstrom.inc		distro/include/angstrom.inc
Line 41:		Line 22:
	#DISTRO_FEATURES += ' ${@["", "thumb-interwork"][bb.data.getVar('THUMB_INTERWORK', d, 1) == "yes"]}'		#DISTRO_FEATURES += ' ${@["", "thumb-interwork"][bb.data.getVar('THUMB_INTERWORK', d, 1) == "yes"]}'
	#force 32-bit at all times		#force 32-bit at all times
	ARM_INSTRUCTION_SET = "arm"		ARM_INSTRUCTION_SET = "arm"
	#no BX instructions (maybe this fixed the above problem)		#no BX instructions (maybe this fixed the above problem)
	THUMB_INTERWORK = "no"		THUMB_INTERWORK = "no"

	distro/angstrom-2008.1.conf		distro/angstrom-2008.1.conf
	#gcc-4.4.4 seems to work better		#gcc-4.4.4 seems to work better
	ANGSTROM_GCC_VERSION_armv4 ?= "4.4.4"		ANGSTROM_GCC_VERSION_armv4 ?= "4.4.4"

	an inittab from a base-image that works		an inittab from a base-image that works
	::sysinit:/etc/init.d/rcS		::sysinit:/etc/init.d/rcS
	::restart:/sbin/init		::restart:/sbin/init
Line 61:		Line 42:

	There is a opkg Angstrom repository for this device hosted by the University of Delaware Linux User Group		There is a opkg Angstrom repository for this device hosted by the University of Delaware Linux User Group
	http://mirror.lug.udel.edu/pub/lug-udel/projects/ts7500/deploy		http://mirror.lug.udel.edu/pub/lug-udel/projects/ts7500/repo/deploy

			==Kernel==

			The kernel that comes default from Technologic Systems TS-7500 only supports OABI, so we first need to recompile the kernel [ftp://ftp.embeddedarm.com/ts-arm-sbc/ts-7500-linux/sources/ linux-2.6.24-cavium_source_aug052010.tar.gz] and see [http://www.embeddedarm.com/about/resource.php?item=410#compile this] for a reference for how-to get to kernel on your board.

			Note that Technologic Systems has now released 2.6.36 for TS-75xx; however 2.6.36 is not currently a "longterm supported kernel version" which means it will not receive security updates and bug fixes in the near future. Luckily 2.6.35 is a longterm release, and we can backport the patch to that version. You can get these patches [http://mirror.lug.udel.edu/pub/lug-udel/projects/ts7500/ here]. After obtaining the latest 2.6.35 kernel and after patching for the ts7500 and getting a working EABI tool-chain as described above.

			export ARCH=arm
			#this is an example based on where my cross compiler lives
			export CROSS_COMPILE=/oe/build/tmp/sysroots/i686-linux/usr/armv4/bin/arm-angstrom-linux-gnueabi-
			make ts7500_defconfig

			Only a few changes need to be make to the default TS-7500 kernel .config
			#this first two are the most important options
			CONFIG_AEABI=y
			#allows old OABI to still work like under OABI environments (within the TS-7500's default initrd for example)
			CONFIG_OABI_COMPAT=y
			#lets be able to check our configuration
			CONFIG_IKCONFIG=y
			CONFIG_IKCONFIG_PROC=y
			#speed up floating point (not for scientific computing)
			# CONFIG_FPE_NWFPE is not set
			CONFIG_FPE_FASTFPE=y

			We also need to replace the modules.tar.gz from the initrd partition used during the bootstrap process. We need to strip the debugging info from the modules so that the tarball is <200KiB or so.
			find lib/modules/ -name '*.ko' -exec
			/oe/build/tmp/sysroots/i686-linux/usr/armv4/bin/arm-angstrom-linux-gnueabi-strip
			-S {} \;
			tar cfz modules.tar.gz lib/modules/2.6.35.11/kernel/drivers/connector/cn.ko lib/modules/2.6.35.11/kernel/drivers/scsi/scsi_mod.ko lib/modules/2.6.35.11/kernel/drivers/scsi/scsi_wait_scan.ko lib/modules/2.6.35.11/kernel/drivers/scsi/sd_mod.ko lib/modules/2.6.35.11/kernel/drivers/scsi/sg.ko lib/modules/2.6.35.11/kernel/drivers/star/str8100/crash.ko lib/modules/2.6.35.11/kernel/drivers/star/str8100/inthandler.ko lib/modules/2.6.35.11/kernel/drivers/usb/core/usbcore.ko lib/modules/2.6.35.11/kernel/drivers/usb/host/ehci-hcd.ko lib/modules/2.6.35.11/kernel/drivers/usb/storage/usb-storage.ko

			Or you can use the prebuild kernel from here:
			[http://mirror.lug.udel.edu/pub/lug-udel/projects/ts7500/ ts7500/]
			make sure to cp [http://mirror.lug.udel.edu/pub/lug-udel/projects/ts7500/modules.tar.gz modules.tar.gz] into your initrd partition overwriting the old one.

Cargoudel: flags

2010-11-30T14:21:35Z

flags

← Older revision		Revision as of 14:21, 30 November 2010
Line 27:		Line 27:
	[http://mirror.lug.udel.edu/pub/lug-udel/projects/ts7500/ ts7500/]		[http://mirror.lug.udel.edu/pub/lug-udel/projects/ts7500/ ts7500/]
	but they should be added into OE soon.		but they should be added into OE soon.

			Binaries must always be built with these flags to function properly. If you do an objdump of your compiled binaries you should see no thumb type instructions (like B, BL, BX, BLX, and BXJ). Use -ffast-math to speed up your software floating point operations, but you can't set it globally since some low-level packages will refuse to build with that flag.

			gcc compiler cflags
			-march=armv4 -mno-thumb-interwork -mno-thumb -mfloat-abi=soft

	==Angstrom==		==Angstrom==

Cargoudel: fix links

2010-10-07T18:59:46Z

fix links

← Older revision		Revision as of 18:59, 7 October 2010
Line 19:		Line 19:

	Or you can use the prebuild kernel from here:		Or you can use the prebuild kernel from here:
	[http://~~www~~.lug.udel.edu/projects/ts7500/ ts7500/]		[http://mirror.lug.udel.edu/pub/lug-udel/projects/ts7500/ ts7500/]
	make sure to cp [http://~~www~~.lug.udel.edu/projects/ts7500/modules.tar.gz modules.tar.gz] into your initrd partition overwriting the old one.		make sure to cp [http://mirror.lug.udel.edu/pub/lug-udel/projects/ts7500/modules.tar.gz modules.tar.gz] into your initrd partition overwriting the old one.

	==Machine==		==Machine==

	A ts75xx.conf and tune-fa526.inc are here		A ts75xx.conf and tune-fa526.inc are here
	[http://~~www~~.lug.udel.edu/projects/ts7500/ ts7500/]		[http://mirror.lug.udel.edu/pub/lug-udel/projects/ts7500/ ts7500/]
	but they should be added into OE soon.		but they should be added into OE soon.

Line 54:		Line 54:
	root@ts75xx:/etc/rcS.d# ls		root@ts75xx:/etc/rcS.d# ls
	S02banner S38devpts.sh S39hostname.sh		S02banner S38devpts.sh S39hostname.sh

			There is a opkg Angstrom repository for this device hosted by the University of Delaware Linux User Group
			http://mirror.lug.udel.edu/pub/lug-udel/projects/ts7500/deploy

Cargoudel: initial article on the ts-7500

2010-10-07T15:36:40Z

initial article on the ts-7500

New page

==Overview ==
The TS-7500 is based on a Cavium CNS2132 (aka Star Semi STR8132) which contains a Faraday FA-526 core which basically resembles a ARM920T but has NO thumb or thumb interworking support
which makes it not a fully EABI compliant architecture. However, as of GCC-4.4.2 (recommend at least GCC-4.4.4) EABI binaries can be built for ARMv4 architectures like this one. This guide helps you setup a openembedded toolchain and new kernel w/ EABI support. Most major linux distributions have decided to make ARMv4T (not ARMv4) the minimum supported architecture for their packages so OE is the best way to roll your own EABI Linux for this board. [http://wiki.debian.org/ArmEabiPort#ChoiceofminimumCPU see the Debian discussion]

==Kernel==
The kernel that comes default from Technologic Systems TS-7500 only supports OABI, so we first need to recompile the kernel [ftp://ftp.embeddedarm.com/ts-arm-sbc/ts-7500-linux/sources/linux-2.6.24-cavium_source_aug052010.tar.gz linux-2.6.24-cavium_source_aug052010.tar.gz] and see [http://www.embeddedarm.com/about/resource.php?item=410#compile this] for a reference for how-to get to kernel on your board.

Only a few changes need to be make to the default TS-7500 kernel .config
#this first two are the most important options
CONFIG_AEABI=y
#allows old OABI to still work like in the TS-7500's default initrd
CONFIG_OABI_COMPAT=y
#lets be able to check our configuration
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
#speed up floating point (not for scientific computing)
# CONFIG_FPE_NWFPE is not set
CONFIG_FPE_FASTFPE=y

Or you can use the prebuild kernel from here:
[http://www.lug.udel.edu/projects/ts7500/ ts7500/]
make sure to cp [http://www.lug.udel.edu/projects/ts7500/modules.tar.gz modules.tar.gz] into your initrd partition overwriting the old one.

==Machine==

A ts75xx.conf and tune-fa526.inc are here
[http://www.lug.udel.edu/projects/ts7500/ ts7500/]
but they should be added into OE soon.

==Angstrom==

There is a couple of changes you need to make to Angstrom in my experience to get it working

distro/include/angstrom.inc
#comment this line out .. it was adding thumb when it shouldn't have for a armv4 (bug?)
#DISTRO_FEATURES += ' ${@["", "thumb-interwork"][bb.data.getVar('THUMB_INTERWORK', d, 1) == "yes"]}'
#force 32-bit at all times
ARM_INSTRUCTION_SET = "arm"
#no BX instructions (maybe this fixed the above problem)
THUMB_INTERWORK = "no"

distro/angstrom-2008.1.conf
#gcc-4.4.4 seems to work better
ANGSTROM_GCC_VERSION_armv4 ?= "4.4.4"

an inittab from a base-image that works
::sysinit:/etc/init.d/rcS
::restart:/sbin/init
::ctrlaltdel:/sbin/reboot
::shutdown:/bin/umount -a -r
ttyS0::respawn:/sbin/getty -L ttyS0 115200 vt100

You need to move some scripts out of rc.S get get it working with the standard chroot boot method for this board. Notice the lack of udev using busybox's mdev -s seems to work fine.
root@ts75xx:/etc/rcS.d# ls
S02banner S38devpts.sh S39hostname.sh