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freebsd-dev/sys/arm/broadcom/bcm2835/std.bcm2836

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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
# $FreeBSD$
Tag all armv7 kernels as such in their machine config line. Transition all boards that support arm cortex CPUs to armv7. This leaves two armv6 kernels in the tree. RPI-B, which uses the BCM2835 which has a ARM1176 core, and VERSATILEPB, which is a qemu board setup around the time RPI-B went in. Copy std.armv6 to std.armv7, even though that duplicates a lot of stuff. More work needs to be done to sort out the duplication. Differential Revision: https://reviews.freebsd.org/D12027
2017-10-05 23:01:50 +00:00
machine arm armv7
Remake support for SMP kernel on UP cpu: - Use new option SMP_ON_UP instead of (mis)using specific CPU type. By this, any SMP kernel can be compiled with SMP_ON_UP support. - Enable runtime detection of CPU multiprocessor extensions only if SMP_ON_UP option is used. In other cases (pure SMP or UP), statically compile only required variant. - Don't leak multiprocessor instructions to UP kernel. - Correctly handle data cache write back to point of unification. DCCMVAU is supported on all armv7 cpus. - For SMP_ON_UP kernels, detect proper TTB flags on runtime. Differential Revision: https://reviews.freebsd.org/D9133
2017-02-02 06:14:44 +00:00
cpu CPU_CORTEXA
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 CONF_CFLAGS="-march=armv7a"
options SOC_BCM2836
Add the SMP support for Raspberry Pi 2 (BCM2836). Tested with the build of some ports and a buildworld. Submitted by: Daisuke Aoyama <aoyama@peach.ne.jp>
2015-05-07 22:11:44 +00:00
options IPI_IRQ_START=76
Set ARM_L2_PIPT for A10 and RPI2, they are probably missing by accident. Noted by: Michal Meloun <meloun@miracle.cz>
2015-04-25 22:42:03 +00:00
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
files "../broadcom/bcm2835/files.bcm2836"
files "../broadcom/bcm2835/files.bcm283x"
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