On Thu, Oct 22, 2015 at 5:17 PM, Greg KH <[email protected]> wrote: > On Thu, Oct 22, 2015 at 03:56:08PM -0700, Kevin Hilman wrote: >> From: Linus Walleij <[email protected]> >> >> This removes a lot of ancient cruft from the Ux500 SMP boot. >> Instead of the pen grab/release, just point the ROM to >> secondary_boot() and start the second CPU there, then send >> the IPI. >> >> Use our own SMP enable method. This enables us to remove the >> last static mapping and get both CPUs booting properly. >> >> Tested this and it just works. >> >> Signed-off-by: Linus Walleij <[email protected]> >> Signed-off-by: Olof Johansson <[email protected]> >> (cherry picked from commit c00def71efd919e8ae835a25f4f4c80a4b2d36d3) >> Cc: <[email protected]> # v4.2+ >> Signed-off-by: Kevin Hilman <[email protected]> >> --- >> This patch was the 2nd in a 2-patch series. Only the 1st patch made it >> into v4.2, but this one is also needed for booting on the ste-snowball. >> >> arch/arm/mach-ux500/Makefile | 2 +- >> arch/arm/mach-ux500/cpu-db8500.c | 1 - >> arch/arm/mach-ux500/headsmp.S | 37 ----------- >> arch/arm/mach-ux500/platsmp.c | 132 >> ++++++++++++--------------------------- >> arch/arm/mach-ux500/setup.h | 1 - >> 5 files changed, 40 insertions(+), 133 deletions(-) >> delete mode 100644 arch/arm/mach-ux500/headsmp.S > > This looks to me like a "new feature", is it a regression from something > that used to work in 4.1?
I guess Linus W. will have to explain better, but I'll try... it's the 2nd part of a 2-part fix that was submitted for v4.2, but only the 1st part made it in because it was late for the merge window. Kevin -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
