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freebsd-skq/sys/arm/conf/RPI2

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Add support for the Raspberry Pi 2. As the chip is based on the bcm2835 in the Raspberry Pi B we support most of the devices are already supported, however the base address has changed. A few items are not working, or missing. The main ones are: * DMA doesn't work in the sdhci driver. * Enabling vchiq halts the boot, may be interrupt related. * There is no U-Boot port yet so the DTB is embedded in the kernel. The last point will make it difficult to boot FreeBSD, however there is support for the Raspberry Pi 2 in the U-Boot git repo. As I have not tested this it is left as an open task to create a port to build. X-MFC: When the above issues are fixed Sponsored by: ABT Systems Ltd
2015-03-25 10:59:42 +00:00
#
Fix the kernel ident for RPI2.
2015-05-02 20:41:49 +00:00
# RPI2 -- Custom configuration for the Raspberry Pi 2
Add support for the Raspberry Pi 2. As the chip is based on the bcm2835 in the Raspberry Pi B we support most of the devices are already supported, however the base address has changed. A few items are not working, or missing. The main ones are: * DMA doesn't work in the sdhci driver. * Enabling vchiq halts the boot, may be interrupt related. * There is no U-Boot port yet so the DTB is embedded in the kernel. The last point will make it difficult to boot FreeBSD, however there is support for the Raspberry Pi 2 in the U-Boot git repo. As I have not tested this it is left as an open task to create a port to build. X-MFC: When the above issues are fixed Sponsored by: ABT Systems Ltd
2015-03-25 10:59:42 +00:00
#
# For more information on this file, please read the config(5) manual page,
# and/or the handbook section on Kernel Configuration Files:
#
# http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
#
# The handbook is also available locally in /usr/share/doc/handbook
# if you've installed the doc distribution, otherwise always see the
# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
# latest information.
#
# An exhaustive list of options and more detailed explanations of the
# device lines is also present in the ../../conf/NOTES and NOTES files.
# If you are in doubt as to the purpose or necessity of a line, check first
# in NOTES.
#
# $FreeBSD$
Fix the kernel ident for RPI2.
2015-05-02 20:41:49 +00:00
ident RPI2
Add support for the Raspberry Pi 2. As the chip is based on the bcm2835 in the Raspberry Pi B we support most of the devices are already supported, however the base address has changed. A few items are not working, or missing. The main ones are: * DMA doesn't work in the sdhci driver. * Enabling vchiq halts the boot, may be interrupt related. * There is no U-Boot port yet so the DTB is embedded in the kernel. The last point will make it difficult to boot FreeBSD, however there is support for the Raspberry Pi 2 in the U-Boot git repo. As I have not tested this it is left as an open task to create a port to build. X-MFC: When the above issues are fixed Sponsored by: ABT Systems Ltd
2015-03-25 10:59:42 +00:00
Create std.arm and std.armv6 config files and include the right one from each of the existing kernel configs. This gives a place to put config that applies to the entire arch. Add the ARM_NEW_PMAP option to std.armv6. This is working well in early testing and it's time for wide exposure, but it's still nice to be able to fall back to the old implementation for testing when a problem comes along. Eventually the option and the old implementation will go away. The opportunity now exists to move a whole lot of boilerplate from all the arm kernel config files into std.arm*, but that's a commit for another day.
2015-05-05 16:09:25 +00:00
include "std.armv6"
Add support for the Raspberry Pi 2. As the chip is based on the bcm2835 in the Raspberry Pi B we support most of the devices are already supported, however the base address has changed. A few items are not working, or missing. The main ones are: * DMA doesn't work in the sdhci driver. * Enabling vchiq halts the boot, may be interrupt related. * There is no U-Boot port yet so the DTB is embedded in the kernel. The last point will make it difficult to boot FreeBSD, however there is support for the Raspberry Pi 2 in the U-Boot git repo. As I have not tested this it is left as an open task to create a port to build. X-MFC: When the above issues are fixed Sponsored by: ABT Systems Ltd
2015-03-25 10:59:42 +00:00
include "../broadcom/bcm2835/std.rpi"
include "../broadcom/bcm2835/std.bcm2836"
options HZ=100
options SCHED_4BSD # 4BSD scheduler
options PLATFORM
# Debugging for use in -current
makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols
options BREAK_TO_DEBUGGER
options ALT_BREAK_TO_DEBUGGER
#options VERBOSE_SYSINIT # Enable verbose sysinit messages
options KDB # Enable kernel debugger support
# For minimum debugger support (stable branch) use:
#options KDB_TRACE # Print a stack trace for a panic
# For full debugger support use this instead:
options DDB # Enable the kernel debugger
options INVARIANTS # Enable calls of extra sanity checking
options INVARIANT_SUPPORT # Extra sanity checks of internal structures, required by INVARIANTS
#options WITNESS # Enable checks to detect deadlocks and cycles
#options WITNESS_SKIPSPIN # Don't run witness on spinlocks for speed
#options DIAGNOSTIC
# NFS root from boopt/dhcp
#options BOOTP
#options BOOTP_NFSROOT
#options BOOTP_COMPAT
#options BOOTP_NFSV3
#options BOOTP_WIRED_TO=ue0
options ROOTDEVNAME=\"ufs:mmcsd0s2\"
device bpf
device loop
device ether
device uart
device pty
device snp
device pl011
# Comment following lines for boot console on serial port
device vt
device kbdmux
device ukbd
device sdhci
device mmc
device mmcsd
device gpio
device gpioled
# I2C
device iic
device iicbus
device bcm2835_bsc
device md
device random # Entropy device
# USB support
device usb
options USB_DEBUG
device dwcotg # DWC OTG controller
# USB storage support
device scbus
device da
device umass
# USB ethernet support
device smcphy
device mii
device smsc
# SPI
device spibus
device bcm2835_spi
Now that DMA works, enable the audio driver on RPi 2.
2015-05-05 01:45:38 +00:00
device vchiq
device sound
Add support for the Raspberry Pi 2. As the chip is based on the bcm2835 in the Raspberry Pi B we support most of the devices are already supported, however the base address has changed. A few items are not working, or missing. The main ones are: * DMA doesn't work in the sdhci driver. * Enabling vchiq halts the boot, may be interrupt related. * There is no U-Boot port yet so the DTB is embedded in the kernel. The last point will make it difficult to boot FreeBSD, however there is support for the Raspberry Pi 2 in the U-Boot git repo. As I have not tested this it is left as an open task to create a port to build. X-MFC: When the above issues are fixed Sponsored by: ABT Systems Ltd
2015-03-25 10:59:42 +00:00
# Flattened Device Tree
options FDT # Configure using FDT/DTB data
# Note: DTB is normally loaded and modified by RPi boot loader, then
# handed to kernel via U-Boot and ubldr.
Now that we have an U-Boot for RPI2, do not use the static DTB compiled into the kernel, which is used mostly on early development stages. On RPI(2) the DTB is loaded and modified by firmware and then handed to kernel via U-Boot and ubldr. The RPI firmware adds (or modify) a few valuable data to the in memory DTB, like: - System memory; - Ethernet MAC address; - framebuffer settings; - Board serial and revision; - clock-frequency for most of devices.
2015-04-23 19:50:22 +00:00
#options FDT_DTB_STATIC
#makeoptions FDT_DTS_FILE=rpi2.dts
Add support for the Raspberry Pi 2. As the chip is based on the bcm2835 in the Raspberry Pi B we support most of the devices are already supported, however the base address has changed. A few items are not working, or missing. The main ones are: * DMA doesn't work in the sdhci driver. * Enabling vchiq halts the boot, may be interrupt related. * There is no U-Boot port yet so the DTB is embedded in the kernel. The last point will make it difficult to boot FreeBSD, however there is support for the Raspberry Pi 2 in the U-Boot git repo. As I have not tested this it is left as an open task to create a port to build. X-MFC: When the above issues are fixed Sponsored by: ABT Systems Ltd
2015-03-25 10:59:42 +00:00
makeoptions MODULES_EXTRA=dtb/rpi
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