Hi Kevin,
On 06/09/2015 05:43 PM, Kevin Hilman wrote:
Peter Griffin <peter.griffin@xxxxxxxxxx> writes:
Hi Maxime, Patrice, Srini, Kevin, Olof & Arnd,
This patchset adds in the necessary code to manage the holding pen for STi
platforms.
Due to all the STi upstream devs using JTAG to boot the STi boards, there
is currently a SMP bug when booting upstream kernels via u-boot where
only the primary core is brought up.
This hasn't been noticed until now because when booting via JTAG the
stlinux_arm_boot script sets the PC of the secondary cores directly.
With these patches applied booting via u-boot now works correctly.
[ 0.045456] CPU: Testing write buffer coherency: ok
[ 0.045597] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.045734] Setting up static identity map for 0x40209000 - 0x40209098
[ 0.065047] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.065081] Brought up 2 CPUs
[ 0.065089] SMP: Total of 2 processors activated (5983.43 BogoMIPS).
[ 0.065092] CPU: All CPU(s) started in SVC mode.
Kevin / Olof / Arnd - Can you put this fix into the next ARM SoC fixes pull
request (if there is one)?
At this stage of the cycle (we're already at -rc7) we limit things to
strictly regression fixes, and seems this has been broken for some time,
so I think this will have to wait for v4.2.
After addresing the comments, Maxime should queue this up for arm-soc so
we can get it in early in the v4.2-rc cycle.
Ok, I will take it for v4.2-rc cycle.
Thanks,
Maxime
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