AM335x-PSP 04.06.00.03 Release Notes

Content is no longer maintained and is being kept for reference only!

AM335x-PSP 04.06.00.03 Release Notes

Linux PSP

AM335x PSP 04.06.00.03

Content is no longer maintained and is being kept for reference only!

Release Notes

Release Date:  December 12, 2011

Introduction

This is Release 04.06.00.03 of AM335x Linux PSP tested on BeagleBoard Bone and AM335x Evaluation Module version 1.0D and version 1.1A.

The Linux PSP serves to provide a fundamental software platform for development, deployment and execution of Linux based applications on Texas Instruments silicon. The Linux kernel and U-Boot software in this release are based on the following open source repositories:

Component	Version	Base Repository	Base Tag (or commit id)
Linux Kernel	v3.1	http://git.kernel.org/?p=linux/kernel/git/tmlind/linux-omap.git;a=summary	c3b92c8787367a8bb53d57d9789b558f1295cc96
U-Boot	2011.09	http://git.denx.de/?p=u-boot.git;a=summary	v2011.09

The code base for Linux kernel and U-Boot included in this release is hosted at the following repositories:

Component	Repository & Branch	Release Tag
Linux Kernel	http://arago-project.org/git/projects/?p=linux-am33x.git;a=shortlog;h=refs/heads/master	v3.1_AM335xPSP_04.06.00.03
U-Boot	http://arago-project.org/git/projects/?p=u-boot-am33x.git;a=shortlog;h=refs/heads/AM335XPSP_04.06.00.03	v2011.09_AM335xPSP_04.06.00.03

Obtaining the Release Package

The PSP release package can be obtained from TI's Technology and Software Publicly Available (TSPA) download site.

Dependencies

Tool/Component	Description	Release Version	Required for
Code Composer Studio (CCS)	IDE and ARM compiler	5.1.0.09000	Building CCS based flash writers
Arago Toolchain	GCC ARM cross compiler	2011.09 (GCC 4.5.3)	Building Linux kernel, U-Boot, Linux examples
Filesystem	Target filesystem	NA	Linux boot

Documentation

The User's Guide provides instructions on how to use the PSP Release package.

The AM335x-PSP 04.06.00.03 Features and Performance Guide provides information on various device driver features and provides performance numbers.

What's Supported

The Linux PSP package supports the following components:

• SPL and U-Boot supporting NAND and MMC/SD boot modes
• Linux Kernel v3.1 and device drivers

Linux support for various IPs on EVM (Rev 1.1A)

Peripheral	Support Status
UART0	Supported.
UART1	Supported in SDK using BT
UART2	Supported in profile #3, needs this patch.
UART3	Planned
UART4	Planned
UART5	Planned
Ethernet Switch	Supported. Features VLAN, IEEE1588, ALE control not supported yet.
SPI0	Supported
SPI1	Not available in EVM
I2C0	Supported
I2C1	Supported
McASP0	Not available in EVM
McASP1	Supported
DCAN0	Not available in EVM
DCAN1	Supported
EDMA	Supported
Timer0	Not Tested (Not used in Linux)
Timer1	Supported (Schedule Tick)
Timer2	Supported (Clocksource)
Timer3	Not Tested (Not used in Linux)
Timer4	Not Tested (Not used in Linux)
Timer5	Supported (CPSW Interrupt pacing)
Timer6	Supported (CPSW Interrupt pacing)
Timer7	Not Tested (Not used in Linux)
Watchdog timer	Supported
RTC	Supported
eHRPWM0	Not available in EVM
eHRPWM1	Not available in EVM
eHRPWM2	Planned to be available in later EVM versions, software support planned.
eQEP0	Not available in EVM
eQEP1	Not available in EVM
eQEP2	Not available in EVM
eCAP0	Planned (as LCD backlight control)
eCAP1	Not available in EVM
eCAP2	Not available in EVM
Touchscreen/ADC	Touchscreen supported, Raw ADC not supported.
MMC/SD0	Supported
MMC/SD1	Supported (Profile 2)
MMC/SD2	Not available in EVM
GPIO	Supported
USB0	Supported. Feature isochronous mode not supported yet.
USB1	Supported. Feature isochronous mode not supported yet.
GPMC (NAND)	Supported
GPMC (NOR)	Planned
LCD	Supported

Linux support for EVM (Rev 1.1A) specific components

Peripheral	Support Status
Accelerometer	Supported
Ambient Light Sensor	Supported
Temperature Sensor	Supported
Haptics	Planned
GPIO keypad	Planned

Linux support for various IPs on BeagleBone (Rev A3)

Peripheral	Support Status
UART0	Supported.
Ethernet Switch	Supported. Features VLAN, IEEE1588, ALE control not supported yet.
MMC/SD0	Supported.
USB0	Supported. Feature isochronous mode not supported yet.
USB1	Supported. Feature isochronous mode not supported yet.

Other Linux Features

Feature	Support Status
Power Management (CPU Idle)	Supported (power measurements pending)
Power Management (CPU Freq)	Planned
Power Management (Suspend-to-RAM)	Planned

• CCS based NAND flash writers.
• Linux examples.

The PSP package also includes:

• Pre-built binaries for U-Boot, Linux kernel, flash writers and examples
• Relevant Documents

New in this Release

• Linux kernel version v3.1
• Support for EVM in addition to BeagleBone board
• DCAN
• CPSW Interrupt Pacing
• SPI DMA mode
• NAND BCH-8 error correction support
• UBIFS filesystem
• Ambient Light sensor, Accelerometer and Temperature sensor

Fixed in this Release

This section lists issues fixed in this release:

Issue Identifier	Issue Headline
SDOCM00084139	Ethernet: Interrupt Pacing not supported
SDOCM00085040	Pressure measurements are not supported in TSC
SDOCM00085596	NAND Driver cannot be built as Module
SDOCM00085659	NAND 4-bit introduced errors could not be corrected
SDOCM00085932	"Internal error: Oops - undefined instruction" error seen while enumerating USB devices
SDOCM00085559	nand variables should be updated in u-boot
SDOCM00086288	SPI: using flash_erase command on SPI partition causes DUT crash
SDOCM00085558	Allow user to update SPL/Uboot images from kernel to Nand
SDOCM00086531	Beaglebone : Board loses power with certain SD cards
SDOCM00086534	USB: high cpu loading seen with usb
SDOCM00085731	removing USB gadget module causes kernel warning

Known Issues

This section lists known issues in this release:

Issue Identifier	Issue Headline	Known Workaround(s)
SDOCM00085670	USB: NFS stops working when CDC/RNDIS gadget module is inserted with Arago FS	None. This is being tracked as a filesystem issue. http://arago-project.org/cgi-bin/bugzilla3/show_bug.cgi?id=11
SDOCM00085443	WDT1 timeout inaccurate.	None
SDOCM00085672	USB: Video: 640x480 captured image from camera is not clear	None. Use lower resolution images.
SDOCM00085673	USB File storage gadget: instability when pendrive connected to host port exposed as storage media from gadget port to PC	None
SDOCM00085676	USB: devices connected through a full speed (USB 1.1) hub fail to work in DMA mode	Use USB in PIO mode
SDOCM00085737	After soft reboot, dhcp or tftp sometimes timeout in uboot.	Power cycle the board (hard reboot).
SDOCM00085738	mmcsd write performance is very low when card is mounted as sync.	It is highly recommended to use async mode for good MMC/SD performance
SDOCM00085770	MMC 8bit is not supported.	None
SDOCM00085830	USB: OTG HNP and SRP not working	None
SDOCM00086520	USB Host port stops enumerating devices after one disconnect / connect cycle	Please re-start the VBUS by following the recommended procedure provided in user's guide
SDOCM00085920	Beaglebone: multiple times of insert/remove mmc modules with R/W operation cause dut hanging	Give a delay of 3 sec (# sleep 3s) between Module removal & Module insertion.
SDOCM00086716	HWMOD warnings upon doing WDT file operations	The warning is harmless and can be ignored.
SDOCM00087097	cpu_idle reports wrong power consumption numbers for WFI and DDR SR states	None
SDOCM00086213	Running ethtool doesnt provide complete information	None
SDOCM00086121	ALSA: Audio loopback prints error messages	The warnings are harmless and can be ignored.
SDOCM00086066	Ethernet: MAC address configuration is not supported in kernel	None
SDOCM00085586	UART: hardware flow control is not working	None
SDOCM00085982	Beaglebone: UDP client performance at 100Mbps and the throughput is less than 1 Mbps	None
SDOCM00086033	Nand mtdtest oob test and subpage test fail.	None
SDOCM00086508	U-Boot doesn't work when profile switch is set to 3	None
SDOCM00086717	EVM: NFS: arecord takes longer than expected time to record file to NFS filesystem	None
SDOCM00087055	ALSA: kernel build with ALSA as module fails	Please apply this patch
SDOCM00087127	Ethernet : build fails when Ethernet is built as a module	Please apply patch1 and patch2
SDOCM00087147	U-Boot: bit error could not be corrected in uboot as error correction in BCH8 is incorrect	Please apply this patch
SDOCM00087173	USB: MassStorageGadget: Issues when MMC card is used as storage media or gadget port	None
SDOCM00087176	Touchscreen: Module fails to resgister while using insmod command	Please apply this patch
SDOCM00087204	EVM: write protection for mmc1 in daughter board doesn't work	None
SDOCM00087207	I2C controller timeout for some slave devices connected on i2c1	None
SDOCM00087229	USB: PIO mode read performance numbers are almost 50% less as compared to that of DMA mode read performance	Use DMA mode of operation if performance is critical
SDOCM00087342	USB: CPPI4.1 DMA locks up when CPU mode transfer is done in parallel to DMA transfer	Use PIO mode when there is possibility of control transfer in parallel to DMA transfers. Such as when using WiFi and mass storage together or when connecting and disconnecting devices connected to a hub port when DMA transfers are active on another port. Please refer to USB User's Guide for detail on how to enable PIO mode.
SDOCM00087475	USB: Userguide, performance guide and releasenotes are not in sync for USB ISO support information	Refer to the USB User's Guide and Performance's Guide instead of snapshots in the release.

Installation and Usage

Please look for detailed installation and usage instructions in the AM335x PSP User's Guide

Upgrade and Compatibility Information

This release removes support for JFFS2 on NAND flash and adds support for UBI filesystem instead. Support for JFFS2 is removed since it is incompatible with U-Boot & Kernel BCH-8 ECC scheme.

PSP components (u-boot, Kernel, Filesystem) flashed into the NAND with any earlier release will not work properly with components from this release because of change in ECC scheme. Follow Steps mentioned in u-boot user's guide to freshly flash all components from this release.

For more information look at

• AM335x u-boot User's Guide for NAND
• AM335x NAND Driver User's Guide

Device Support

This release supports the BeagleBone Board and AM335x Evaluation Module version 1.0D and version 1.1A

Technical Support and Product Updates

For further information or to report any problems, contact http://community.ti.com or http://support.ti.com.

OMAP Linux Mailing List: http://vger.kernel.org/vger-lists.html#linux-omap