From: Nitin A Kamble <[email protected]> Starting a new documentation file to describe the layer specific hardware features. At this point the intel-ucode machine feature is described here. In the future more such features will be described in this file.
Signed-off-by: Nitin A Kamble <[email protected]> --- README.hardware | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 README.hardware diff --git a/README.hardware b/README.hardware new file mode 100644 index 0000000..ecadb5d --- /dev/null +++ b/README.hardware @@ -0,0 +1,62 @@ + meta-intel Layer Hardware README + ================================ + +This file gives details about using the meta-intel layer with the machines +supported in the layer. A full list of supported reference target machines +can be found by looking in the following directories: + + conf/machine/ + meta-*/conf/machine/ + meta-isg/meta-*/conf/machine/ + +The information in this file is also applicable to machine such as as minnow +which are defined in separate layers and utilize the meta-intel layer. + + +Machine Features in the meta-intel layer +======================================== + +Many machine features are available in the oecore/poky layer for BSP use. +The meta-intel layer makes some additional machine features available for BSPs +using the meta-intel layer. + +Requirements +------------ + +The additional machine features are only available when the meta-intel layer +is included in the build config, and the meta-intel.inc file is included in +the machine configuration of the interested BSP. + +To make these features available for your machine, you will need to: + +1. have a configuration line as seen below in the bblayers.conf + BBLAYERS += "<local path>/meta-intel.git" +2. have the following line in the machine configuration + require conf/machine/include/meta-intel.inc + +Once the above requirements are met, then the machine features provided by +the meta-intel layer will be available for the BSP use. + +Available Machine Features +-------------------------- + +As of now the meta-intel layer provides the following list of machine features. +In the future, more machine features may be available in this list. + +* intel-ucode + +These machine features can be included by listing them in the MACHINE_FEATURES variable +in the machine configuration file. + +Details of the Machine Features +------------------------------- + +* intel-ucode: This feature provides microcode updating support. Once enabled, + the generated image will have complete support for updating the microcode on + Intel processors. It enables microcode updating at early boot time by + placing the microcode data files in the initrd image. It also puts the + user land microcode updating tool iucode_tool and the microcode data + file in the target images. It is highly recommended to enable the intel-code + machine features for all the platforms using the Intel processors. The BSPs + which are highly sensitive to the target image size, may consider not + enabling this feature to save the image foot print. -- 1.8.1.4 -- _______________________________________________ meta-intel mailing list [email protected] https://lists.yoctoproject.org/listinfo/meta-intel
