> On Jan 11, 2016, at 8:49 AM, Petter Mabäcker <pet...@technux.se> wrote: > > Add basic support for PiTFT display by using device-trees. > > In order get it working below configurations must be active in > local.conf: > > MACHINEOVERRIDES .= ":pitft”
Using MACHINE_FEATURES will be more appropriate term. Effects are same. > - This will enable SPI bus and i2c device-trees, it will also setup > framebuffer for console and x server on PiTFT. > > [Support #70] > > Signed-off-by: Petter Mabäcker <pet...@technux.se> > --- > README | 29 ++++++++++++++++------ > recipes-bsp/bootfiles/rpi-config_git.bb | 14 +++++++++++ > .../rpi/xorg.conf.d/99-pitft.conf | 5 ++++ > .../xorg-xserver/xserver-xf86-config_0.1.bbappend | 1 + > recipes-kernel/linux/linux-raspberrypi.inc | 1 + > 5 files changed, 42 insertions(+), 8 deletions(-) > create mode 100644 > recipes-graphics/xorg-xserver/xserver-xf86-config/rpi/xorg.conf.d/99-pitft.conf > > diff --git a/README b/README > index 8ef4e7a..791038f 100644 > --- a/README > +++ b/README > @@ -22,10 +22,11 @@ Contents: > 2.H. Optional - Enable kgdb over console support > 2.I. Optional - Enable SPI bus > 2.J. Optional - Enable I2C > - 2.K. Images > - 2.L. Boot to U-Boot > - 2.M. Image with Initramfs > - 2.N. Device tree support > + 2.K. Optional - Enable PiTFT support > + 2.L. Images > + 2.M. Boot to U-Boot > + 2.N. Image with Initramfs > + 2.O. Device tree support > 3. Extra apps > 3.A. omxplayer > 4. Source code and mirrors > @@ -157,7 +158,19 @@ ENABLE_SPI_BUS = "1" > When using device tree kernels, set this variable to enable I2C > ENABLE_I2C = "1" > > -2.K. Images > +2.K. Optional - Enable PiTFT support > +==================================== > +Basic support for using PiTFT screens can be enabled by adding > +below in local.conf: > + > +MACHINEOVERRIDES .= ":pitft" > + - This will enable SPI bus and i2c device-trees, it will also setup > + framebuffer for console and x server on PiTFT. > + > +NOTE: To get this working the overlay for the PiTFT model must be build, > + added and specified as well (dtoverlay=<driver> in config.txt) > + > +2.L. Images > =========== > * rpi-hwup-image > Hardware up image > @@ -167,7 +180,7 @@ ENABLE_I2C = "1" > Image based on rpi-basic-image which includes most of the packages in this > layer and some media samples. > > -2.L. Boot to U-Boot > +2.M. Boot to U-Boot > =================== > To have u-boot load kernel image, set in your local.conf > KERNEL_IMAGETYPE = "uImage" > @@ -175,7 +188,7 @@ KERNEL_IMAGETYPE = "uImage" > This will make kernel.img be u-boot image which will load uImage. > By default, kernel.img is the actual kernel image (ex. Image). > > -2.M. Image with Initramfs > +2.N. Image with Initramfs > ========================= > To build an initramfs image : > * Set this 3 kernel variables (in linux-raspberrypi.inc for example) > @@ -188,7 +201,7 @@ To build an initramfs image : > * Set the meta-rasberrypi variable (in raspberrypi.conf for example) > - KERNEL_INITRAMFS = "-initramfs" > > -2.N. Device tree support > +2.O. Device tree support > ========================= > Device tree for RPi is only supported when using linux-raspberrypi 3.18+ > kernels. > diff --git a/recipes-bsp/bootfiles/rpi-config_git.bb > b/recipes-bsp/bootfiles/rpi-config_git.bb > index ccb9b7f..9f20352 100644 > --- a/recipes-bsp/bootfiles/rpi-config_git.bb > +++ b/recipes-bsp/bootfiles/rpi-config_git.bb > @@ -80,6 +80,20 @@ do_deploy() { > fi > } > > +do_deploy_append_pitft() { > + # Add SPI BUS and I2C support if needed > + if [ -z "${ENABLE_SPI_BUS}" ]; then > + echo "# Enable SPI bus" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt > + echo "dtparam=spi=on" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt > + fi > + > + if [ -z "${ENABLE_I2C}" ]; then > + echo "# Enable I2C" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt > + echo "dtparam=i2c1=on" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt > + echo "dtparam=i2c_arm=on" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt > + fi > +} > + > addtask deploy before do_package after do_install > do_deploy[dirs] += "${DEPLOYDIR}/bcm2835-bootfiles" > > diff --git > a/recipes-graphics/xorg-xserver/xserver-xf86-config/rpi/xorg.conf.d/99-pitft.conf > > b/recipes-graphics/xorg-xserver/xserver-xf86-config/rpi/xorg.conf.d/99-pitft.conf > new file mode 100644 > index 0000000..0d2b36b > --- /dev/null > +++ > b/recipes-graphics/xorg-xserver/xserver-xf86-config/rpi/xorg.conf.d/99-pitft.conf > @@ -0,0 +1,5 @@ > +Section "Device" > + Identifier "Adafruit PiTFT" > + Driver "fbdev" > + Option "fbdev" "/dev/fb1" > +EndSection > diff --git a/recipes-graphics/xorg-xserver/xserver-xf86-config_0.1.bbappend > b/recipes-graphics/xorg-xserver/xserver-xf86-config_0.1.bbappend > index 2cf40f8..db8e4c1 100644 > --- a/recipes-graphics/xorg-xserver/xserver-xf86-config_0.1.bbappend > +++ b/recipes-graphics/xorg-xserver/xserver-xf86-config_0.1.bbappend > @@ -1,6 +1,7 @@ > FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:" > > SRC_URI_append_rpi = " file://xorg.conf.d/10-evdev.conf " > +SRC_URI_append_pitft = " file://xorg.conf.d/99-pitft.conf " > > do_install_append_rpi () { > install -d ${D}/${sysconfdir}/X11/xorg.conf.d/ > diff --git a/recipes-kernel/linux/linux-raspberrypi.inc > b/recipes-kernel/linux/linux-raspberrypi.inc > index 70e8bfe..420346a 100644 > --- a/recipes-kernel/linux/linux-raspberrypi.inc > +++ b/recipes-kernel/linux/linux-raspberrypi.inc > @@ -24,6 +24,7 @@ CMDLINE = "dwc_otg.lpm_enable=0 console=ttyAMA0,115200 > root=/dev/mmcblk0p2 rootf > > # Add the kernel debugger over console kernel command line option if enabled > CMDLINE_append = ' ${@base_conditional("ENABLE_KGDB", "1", > "kgdboc=ttyAMA0,115200", "", d)}' > +CMDLINE_append_pitft = "fbcon=map:10 fbcon=font:VGA8x8" > > UDEV_GE_141 ?= "1" > > -- > 1.9.1 > > -- > _______________________________________________ > yocto mailing list > yocto@yoctoproject.org > https://lists.yoctoproject.org/listinfo/yocto
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