DM814x C6A814x AM387x PSP 04.01.00.02 Release Notes

Important
This document covers details for TI814x 04.01.00.02 release. This release is tested on DM8148EVM

TI814x PSP 04.01.00.02

Release Notes

Release Date: Feb 3, 2011

Document License

This work is licensed under the Creative Commons Attribution-Share Alike 3.0 United States License. To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/3.0/us/ or send a letter to Creative Commons, 171 Second Street, Suite 300, San Francisco, California, 94105, USA.

Read This First

1) The kernel NAND driver now uses 1-bit h/w ECC and U-Boot is also updated accordingly. So it is mandatory to re-flash the latest U-Boot along with kernel and filesystem (if using NAND based kernel and/or filesystem) as provided in this release before proceeding to boot the 04.01.00.02 kernel.

2) The serial console device names in this kernel are changed from ttySx to ttyOx. This means you will need to change the boot arguments passed to kernel and the /etc/inittab file in the filesystem accordingly when booting the 04.01.00.02 kernel. Please refer Using The Correct Console Device section in User Guide.

3) You might need to update the DHCP script in your filesystem when using network mounted root filesystem with the kernel from this release. Please refer Updating the DHCP Script section in User Guide.

4) The parameter passed to mkfs.jffs2 while creating JFFS2 image has changed, please refer "Creating JFFS2 File-system" section under "U-Boot NAND Support" in U-Boot User Guide.

5) The steps for flashing jffs2 image to NAND from U-Boot has changed, please refer "Flashing File-system from U-Boot" section under "U-Boot NAND Support" in U-Boot User Guide.

Introduction

This is Release 04.01.00.02 of TI814x Linux PSP tested on DM8148 EVM. The EVM consists of base board. In the rest of the document, we will refer this setup as DM8148 EVM.

The Linux PSP serves to provide a fundamental software platform for development, deployment and execution of Linux based applications on Texas Instruments DM8148 EVM. 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)
TI814x Linux Kernel	2.6.37-rc3(Linux kernel version)	http://git.kernel.org/?p=linux/kernel/git/tmlind/linux-omap-2.6.git;a=commit;h=5a5ae19658c9492493261eb44a842a46596a18a6	5a5ae19658c9492493261eb44a842a46596a18a6
U-Boot	2010.06	http://git.denx.de/?p=u-boot.git;a=summary	v2010.06

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

Component	Repository (Branch)	Baseline Tag/Commit	Release Tag
TI814x Linux Kernel	http://arago-project.org/git/projects/?p=linux-omap3.git;a=summary (ti81xx-master)	5a5ae19658c9492493261eb44a842a46596a18a6	v2.6.37-rc3_TI814XPSP_04.01.00.02.patch2
TI814x U-Boot	http://arago-project.org/git/projects/?p=u-boot-omap3.git;a=summary (ti81xx-master)	v2010.06	v2010.06_TI814XPSP_04.01.00.02

For detailed information on the various software components included in the release and how to use them, please refer to the User Guide.

The kernel and U-Boot have been compiled with CodeSourcery GNU Toolchain for ARM Processors 2009-q1-203 based on GCC 4.3.3

Documentation

The User Guide provides instructions on how to use the PSP Release package. A copy of the UserGuide is included in the docs folder of the package.

What's Supported

SDK package includes support for DM8148 EVM platform.

The Linux PSP package supports the following components:

• U-Boot supporting NAND, SD and SPI, boot modes
• Linux Kernel and device drivers.
  • Ethernet
  • MUSB host driver supporting Mass Storage Class and HID class on USB0 and USB1.
  • NAND
  • UART
  • I2C
  • SATA
  • EDMA
  • Audio
  • SPI (PIO mode)
  • SD
  • Video Display Driver(FBDev)
  • TILER
  • IOMMU
• Pre-built binaries for U-Boot (for SD and NAND boot mode only), Linux kernel.
• Pre-Built binaries for NAND and SPI flash writers.

What's Not Supported

• Following are not supported:
  • PCIe Boot
  • PCIe RC driver
  • NOR Boot
  • Ethernet Boot
  • HDMI Audio
  • TVP5158 Audio
  • ADC3101 Audio
  • RTC
  • WDT
  • GPIO
  • The release package does not include a filesystem image

Fixed in this Release

This section lists issues fixed in this release:

Issue Identifier	Issue Headline
SDOCM00074654	Top command always displays per process CPU load as 0%
SDOCM00077516	U-Boot does not read MAC address from eFuse registers
SDOCM00077309	SD boot clk config missing
SDOCM00072641	USB MSC: Device node is not deleted after USB harddisk unplugged and also device unplugged notification is not seen

New in this Release

• Updated to Linux 2.6.37-rc3 kernel from linux-omap git
• NAND 1-bit h/w ECC support in U-Boot and Kernel (Enabled by default)
• SD Boot
• SD Driver in Linux
• TILER
• IOMMU

Known Issues

This section lists known issues observed in this release:

Issue Identifier	Issue Headline	Known Workaround(s)
SDOCM00072638	Audio: Overrun, underrun errors observed for less period sizes less than 64 frames	None.
SDOCM00072456	Fourth test(try to write off end of device) in mtd_oobtest is failing for read on third mtd partition	This is a limitation in Linux NAND stack. Fourth mtd_oobtest will fail if used in intermediate partitions in a flash device. Hence if mtd4 is used for mtd_oobtest it would succeed.
SDOCM00072969	Kernel build throws warnings	None. These warnings will not be fixed as they are from common kernel or Omap OMAP(2/3) source.
SDOCM00072442	NAND 4 bit ECC not supported in TI814x	None. This is a hardware issue and will not be supported.
SDOCM00074366	Linux SD driver cannot detect SD card hot insertion	Make sure to insert SD card before booting
SDOCM00078276	MMC/SD card's write protect status is not detected	None.
SDOCM00077875	Host does not enumerate devices connected to all the ports of a port multiplier.	Do not use 0th Port of the port multiplier and connect the required devices to the remaining ports of the port multiplier
SDOCM00078467	USB: While USB Audio record and playback there is underrun error displayed on the console	None
SDOCM00077512	USB Module support: USB Modular feature (insmod/rmmod) is not supported	Known issue
SDOCM00077517	Defconfig: The default ti8148_evm_defconfig throws warning when mulitmedia support and UVC usb class is selcted	Known issue.
SDOCM00077522	USB:Gadget:Perrformance: The Write performance is very poor for USB Gadget with SATA as storag device	Known issue
SDOCM00078292	Kernel build fails if IOMMU Debug-FS is enabled in kernel configuration	Disable iommu debug-fs support during kernel configuration (menuconfig)
SDOCM00078359	CCS based JTAG flashing tool can be used only to flash bootloader	For other images use u-boot or uart boot mode.
SDOCM00078546	HDMI PLL doesn't get locked on some of Centaurus boards. Will be fixed in PG2.0 version of Silicon	Try on other Board.

Installation and Usage

Please look for detailed installation and usage instructions in the User Guide

Upgrade and Compatibility Information

To upgrade to new PSP release, simply delete the old release and extract the new release in its place.

Device Support

This release supports the Texas Instruments DM8148 EVM

Validation Information

This release is tested on DM8148 EVM with SDK filesystem (link to be updated).

ARM is running at 600 MHz and DDR2 at 333 MHz.

Versioning

This is 04.01.00.02 release of TI814X Linux PSP product.

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