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331897 |
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02-Apr-2018 |
gonzo |
MFC r314672, r315967, r324184, r325768
r314672:
[rpi] rpi3 should use the same cpufreq logic as rpi2, not rpi-b
RPi3 cpufreq is more like that on RPi2. Setting arm frequency
above min (say, "sysctl hw.cpufreq.arm_freq=600000001") turns on
turbo mode, and the firmware automatically raises voltage, sets
frequency to max 1200MHz, and throttle when overheat, etc.
Swap if/else parts and use SOC_BCM2835 def so RPi3 can share the
same cpufreq logic as RPi2, instead of falling to that for RPi.
Submitted by: Jia-Shiun Li <jiashiun@gmail.com>
Differential Revision: https://reviews.freebsd.org/D9640
r315967:
[rpi] Use compatibility string from upstream DTB for I2C controller
FreeBSD uses upstream DTB for RPi3 build and compatibility string for
i2c device is different there. Add this new string to compatibility data.
Reported by: Karl Denninger
r324184 by ian:
Allow Raspberry Pi platform and drivers to be configured with upstream DTBs.
- Added more compatibility strings to drivers not yet converted
- Added new RPI platform code compatibility string to match the ones used
upstream
- Adapted RPI and RPI2 DTS to match the new platform code compatibility
string
The goal is to use the upstream DTBs as a replacement for our custom one.
This is now possible with these changes.
Additionally, as the RPI firmware automatically chooses the right DTB for
us, this would allow to have one common armv6 kernel for RPI0 and RPI1
(BCM2835-based), and one common armv7 kernel for RPI2 v1.1 (BCM2836-based),
and RPI2 v1.2 / RPI3 (BCM2837-based).
Submitted by: Sylvain Garrigues <sylgar@gmail.com>
Differential Revision: https://reviews.freebsd.org/D12360
r325768 by manu:
arm: rpi2: Fix cpufreq(4)
Since r324184 the root node compatible for rpi2 is "brcm,bcm2836", add
it to the compatible list of bcm2835_cpufreq.
Tested On: RPI2 v1.1 RPI2 v1.2
Reported by: many on freebsd-arm@
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| #
331894 |
|
02-Apr-2018 |
gonzo |
MFC r306436-r306437, r306489, r306491
r306436 by manu:
RPI-B: Add support for MULTIDELAY
100 cycles per us seems accurate enough, at least it's better than the 200 value
that was used before.
Reviewed by: andrew, imp
Differential Revision: https://reviews.freebsd.org/D8062
r306437 by manu:
RPI2: Add support for PLATFORM_SMP so we can later add it to GENERIC.
Reviewed by: andrew
Differential Revision: https://reviews.freebsd.org/D8063
r306489 by manu:
bcm2835_cpufreq: Only attach driver if we correcly match on the machine
compatible string.
r306491 by manu:
RPI2: Add support for MULTIDELAY, this is needed for inclusion into GENERIC.
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| #
300421 |
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22-May-2016 |
loos |
Fix the deciKelvin to Celsius conversion in kernel.
After r285994, sysctl(8) was fixed to use 273.15 instead of 273.20 as 0C
reference and as result, the temperature read in sysctl(8) now exibits a
+0.1C difference.
This commit fix the kernel references to match the reference value used in
sysctl(8) after r285994.
Sponsored by: Rubicon Communications (Netgate)
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