Temp meta-intel release notes

Release Notes

Following are features, updates, and know issues for this release of the Yocto Project. Features and updates

Features & Updates

• LTSI Kernel: The v1.4 release is the 1st release for Yocto Project meta-intel BSPs which provides LTSI enabled (v3.4) Linux kernel recipes along with the default (v3.8.4) linux-yocto kernel recipes.
• As part of the standard BSP retirement process, the cedartrail BSP has been retired from the Yocto Project as of this 1.4 release. Also note that the last, 1.3 version of the cedartrail BSP is still fully

supported going forward.

• Emenlow BSP is been changed to use EMGD graphics driver stack instead of the earlier Poulsbo Graphics Driver Stack.
• A new emenlow-noemgd BSP has been created which uses fully open source gma500 graphics stack.
• A new nuc BSP has been created to support Intel’s Next Unit of Computing platforms.
• For all the emgd based BSPs viz crownbay, emenow, fri2 & sys940x the EMGD graphics driver stack has been upgraded from v1.14 to the latest v1.16.
• For different hardware platforms supported by the fri2-noemgd BSP, X is enabled by using the fbdev X driver in place of the earlier vesa X driver.
• The method of specifying BSP Video Acceleration configuration is changed now. Instead of the VA_FEATURES var a new variable named MACHINE_HWCODECS is used to specify which video codecs to include in the image.
• For all the meta-Intel BSPs the Linux-yocto kernel (default kernel) is updated to v3.8.4.
• New Linux-yocto-dev kernel recipes, which are used for development of the next kernel are now provided for these meta-intel BSPs: chiefriver, crownbay, crownbay-noemgd, emenlow, emenlow-noemgd, fri2, fri2-noemgd, jasperforest, nuc, sugarbay, sys940x, sys940x-noemgd
• Real time kernel recipes, linux-yocto-rt_v3.4 are now provided for these meta-intel BSPs: chiefriver, crownbay, crownbay-noemgd, crystalforest, emenlow, emenlow-noemgd, fri2, fri2-noemgd, jasperforest, n450, nuc, sugarbay, sys940x, sys940x-noemgd
• Real time kernel recipes, linux-yocto-rt_v3.8 is now provided for these meta-intel BSPs: chiefriver, crownbay, crownbay-noemgd, emenlow, emenlow-noemgd, fri2, fri2-noemgd, jasperforest, n450,

nuc, sugarbay, sys940x, sys940x-noemgd

Known Issues

• USB devices auto disabling: On the Sugarbay platrom, it is observed that some of the USB devices were getting automatically suspended within few seconds of inactivity. A workaround for this

issue is: pass boot parameter usbcore.autosuspend=-1 to the kernel, which avoids this auto suspension. This issue is observed with the v3.8.4 kernel, and may also show on other hardware platforms.