On Fri, 14 Oct 2016 03:37:36 +0000 (UTC)
Oleksandr Tymoshenko <go...@freebsd.org> wrote:

> Author: gonzo
> Date: Fri Oct 14 03:37:35 2016
> New Revision: 307257
> URL: https://svnweb.freebsd.org/changeset/base/307257
> 
> Log:
>   Add initial Raspberry Pi 3 support
>   
>   RPI3 kernel config builds kernel compatible with latest upstream
> device tree and firmware:
> https://github.com/raspberrypi/firmware/tree/master/boot As of today
> it's 597c662a613df1144a6bc43e5f4505d83bd748ca 
>   Default console is PL01x, so pi3-disable-bt dt overlay should be
> configured in config.txt and stock U-Boot should be patched to use
> proper serial port. 
>   Yet unsupported: SMP, VCHIQ, RNG driver. RNG requires some work due
> to upstream device tree incompatibility.
>   
>   Multiple people contributed to this work over time: db@, loos@,
> manu@
> 
> Added:
>   head/sys/arm64/broadcom/
>   head/sys/arm64/broadcom/bcm2837/
>   head/sys/arm64/broadcom/bcm2837/files.bcm2837   (contents, props
> changed) head/sys/arm64/conf/RPI3   (contents, props changed)
> Modified:
>   head/sys/arm/broadcom/bcm2835/bcm2835_vcbus.h
>   head/sys/conf/options.arm64
> 
> Modified: head/sys/arm/broadcom/bcm2835/bcm2835_vcbus.h
> ==============================================================================
> --- head/sys/arm/broadcom/bcm2835/bcm2835_vcbus.h     Fri Oct 14
> 03:32:20 2016 (r307256) +++
> head/sys/arm/broadcom/bcm2835/bcm2835_vcbus.h Fri Oct 14
> 03:37:35 2016 (r307257) @@ -37,7 +37,7 @@ #define
> BCM2835_VCBUS_IO_BASE         0x7E000000 #define
> BCM2835_VCBUS_SDRAM_UNCACHED  0xC0000000 
> -#ifdef SOC_BCM2836
> +#if defined(SOC_BCM2836) || defined(SOC_BCM2837)

You could reverse the logic here to:
#ifdef SOC_BCM2835
<2835 macros>
#else
<s836/s837 macros>
#endif

>  #define      BCM2835_ARM_IO_BASE             0x3f000000
>  #define      BCM2835_VCBUS_SDRAM_BASE
> BCM2835_VCBUS_SDRAM_UNCACHED #else
> 
> Added: head/sys/arm64/broadcom/bcm2837/files.bcm2837
> ==============================================================================
> --- /dev/null 00:00:00 1970   (empty, because file is
> newly added) +++ head/sys/arm64/broadcom/bcm2837/files.bcm2837
> Fri Oct 14 03:37:35 2016      (r307257) @@ -0,0 +1,4 @@
> +# $FreeBSD$
> +
> +arm/broadcom/bcm2835/bcm2836.c               standard
This should be in files.arm64 and enabled when the SOC_ option is set.

> +kern/kern_clocksource.c                      standard
This is already in files.arm64.
> 
> Added: head/sys/arm64/conf/RPI3

Why a new kernel config and not GENERIC?

...
> Modified: head/sys/conf/options.arm64
> ==============================================================================
> --- head/sys/conf/options.arm64       Fri Oct 14 03:32:20
> 2016  (r307256) +++ head/sys/conf/options.arm64       Fri Oct
> 14 03:37:35 2016      (r307257) @@ -9,5 +9,6 @@
> VFP                           opt_global.h 
>  # SoC Support
>  SOC_ALLWINNER_A64            opt_soc.h
> +SOC_BCM2837                  opt_global.h
This should be SOC_BRCM_BCM2837 (or maybe SOC_BRCM_BCM283X) and live in
opt_soc.h

Andrew
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