diff options
| -rw-r--r-- | README | 23 | ||||
| -rw-r--r-- | recipes-kernel/linux/linux-raspberrypi.inc | 5 |
2 files changed, 19 insertions, 9 deletions
@@ -19,10 +19,11 @@ Contents: 2.E. Set overclocking options 2.F. Optional - Video camera support with V4L2 drivers 2.G. Optional - Enable offline compositing support - 2.H. Images - 2.I. Boot to U-Boot - 2.J. Image with Initramfs - 2.K. Device tree support + 2.H. Optional - Enable kgdb over console support + 2.I. Images + 2.J. Boot to U-Boot + 2.K. Image with Initramfs + 2.L. Device tree support 3. Extra apps 3.A. omxplayer 4. Source code and mirrors @@ -138,7 +139,13 @@ Heavily recommended for Wayland/Weston. See: http://wayland.freedesktop.org/raspberrypi.html -2.H. Images +2.H. Optional - Enable kgdb over console support +================================================ +To add the kdbg over console (kgdboc) parameter to the kernel command line, +set this variable in local.conf: +ENABLE_KGDB = "1" + +2.I. Images =========== * rpi-hwup-image Hardware up image @@ -148,7 +155,7 @@ See: http://wayland.freedesktop.org/raspberrypi.html Image based on rpi-basic-image which includes most of the packages in this layer and some media samples. -2.I. Boot to U-Boot +2.J. Boot to U-Boot =================== To have u-boot load kernel image, set in your local.conf KERNEL_IMAGETYPE = "uImage" @@ -156,7 +163,7 @@ 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.J. Image with Initramfs +2.K. Image with Initramfs ========================= To build an initramfs image : * Set this 3 kernel variables (in linux-raspberrypi.inc for example) @@ -169,7 +176,7 @@ To build an initramfs image : * Set the meta-rasberrypi variable (in raspberrypi.conf for example) - KERNEL_INITRAMFS = "-initramfs" -2.K. Device tree support +2.L. Device tree support ========================= Device tree for RPi is only supported when using linux-raspberrypi 3.18+ kernels. diff --git a/recipes-kernel/linux/linux-raspberrypi.inc b/recipes-kernel/linux/linux-raspberrypi.inc index 7e36408..d60a3e9 100644 --- a/recipes-kernel/linux/linux-raspberrypi.inc +++ b/recipes-kernel/linux/linux-raspberrypi.inc @@ -19,7 +19,10 @@ KERNEL_DEFCONFIG_raspberrypi ?= "bcmrpi_defconfig" KERNEL_DEFCONFIG_raspberrypi2 ?= "bcm2709_defconfig" # CMDLINE for raspberrypi -CMDLINE = "dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait" +CMDLINE = "dwc_otg.lpm_enable=0 console=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait" + +# Add the kernel debugger over console kernel command line option if enabled +CMDLINE_append = ' ${@base_conditional("ENABLE_KGDB", "1", "kgdboc=ttyAMA0,115200", "", d)}' UDEV_GE_141 ?= "1" |