README

This README file contains information on the contents of the meta-rz-panfrost layer.

The meta-rz-panfrost layer enables the VLP to take advantage of the open-source panfrost graphics drivers.
This has been currently tested on the RZ/G2L SoC with the VLP 3.0.1 version. It should work on the RZ/V2L SoC.

Please see the corresponding sections below for details.

Table of Contents
=================

  I. Adding the meta-rz-panfrost layer to your build.
 II. Modifying the image.
III. Verifying Panfrost is working.


I. Adding the meta-rz-panfrost layer to your build
=================================================

Run 'bitbake-layers add-layer meta-rz-panfrost'


II. Modifying the image.
=================================================

In build/conf/local.conf, please add the following:
	PACKAGECONFIG_append_pn-mesa = " egl kmsro panfrost"
	IMAGE_INSTALL_append += " mesa weston kmscube"

Next, build your customized image:
	$bitbake core-image-weston


III. Verifying Panfrost is working.
=================================================

To ensure that Panfrost is working, the kernel bootup log should show the following:
	...
	[    0.140409] panfrost 11840000.gpu: clock rate = 500000000
	[    0.140456] panfrost 11840000.gpu: bus_clock rate = 200000000
	[    0.141269] panfrost 11840000.gpu: [drm:panfrost_devfreq_init] Failed to register cooling device
	[    0.141371] panfrost 11840000.gpu: mali-g31 id 0x7093 major 0x0 minor 0x0 status 0x0
	[    0.141390] panfrost 11840000.gpu: features: 00000000,3fde77ff, issues: 00000000,00000400
	[    0.141408] panfrost 11840000.gpu: Features: L2:0x070d0206 Shader:0x00000000 Tiler:0x00000209 Mem:0x1 MMU:0x00002821 AS:0xff JS:0x7
	[    0.141425] panfrost 11840000.gpu: shader_present=0x1 l2_present=0x1
	[    0.142475] [drm] Initialized panfrost 1.1.0 20180908 for 11840000.gpu on minor 0
	...