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

# $FreeBSD$

machine 	arm armv7
cpu		CPU_CORTEXA
makeoptions	CONF_CFLAGS="-march=armv7a"
options 	SOC_BCM2836

files	"../broadcom/bcm2835/files.bcm2836"
files	"../broadcom/bcm2835/files.bcm283x"
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`

			`files "../broadcom/bcm2835/files.bcm2836"`
			`files "../broadcom/bcm2835/files.bcm283x"`