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1bf6d2c1bb
linux_dsm_epyc7002/arch/arm/mach-ux500
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Linus Walleij 1bf6d2c1bb ARM: mach-ux500: unlock I&D l2x0 caches before init 
Apparently U8500 U-Boot versions may leave the l2x0 locked down
before executing the kernel. Make sure we unlock it before we
initialize the l2x0. This fixes a performance problem reported
by Jan Rinze.

The l2x0 core has been modified to unlock the l2x0 by default,
but it will not touch the locking registers if the l2x0 was
already enabled, as on the ux500, so we need this quirk to
make sure it is properly turned off.

Cc: stable@kernel.org
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Rabin Vincent <rabin.vincent@stericsson.com>
Cc: Adrian Bunk <adrian.bunk@movial.com>
Reported-by: Jan Rinze <janrinze@gmail.com>
Tested-by: Robert Marklund <robert.marklund@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-09-22 14:07:34 +02:00
..
include/mach Merge branch 'next/devel' of ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc 2011-07-26 17:41:04 -07:00
board-mop500-pins.c Merge branches 'cns3xxx/devel', 'davinci/devel', 'imx/devel', 'lpc32xx/devel', 'pxa/devel', 'tegra/devel' and 'stericsson/master' of git+ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc into next/devel 2011-07-17 21:31:38 +02:00
board-mop500-regulators.c Merge branch 'next/devel' of ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc 2011-07-26 17:41:04 -07:00
board-mop500-regulators.h mach-ux500: configure board for the TPS61052 regulator v2 2011-03-28 08:54:23 +02:00
board-mop500-sdi.c mach-ux500: Add SDI support for snowball board 2011-06-23 12:04:56 +02:00
board-mop500-stuib.c mach-ux500: basic HREFv60 support v2 2011-03-14 14:05:16 +01:00
board-mop500-u8500uib.c staging: ste_rmi4: remove cross-dependent platform data 2011-07-05 20:29:16 -07:00
board-mop500-uib.c mach-x500: fix SECTION warnings in uib 2011-06-22 13:26:49 +02:00
board-mop500.c Merge branches 'cns3xxx/devel', 'davinci/devel', 'imx/devel', 'lpc32xx/devel', 'pxa/devel', 'tegra/devel' and 'stericsson/master' of git+ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc into next/devel 2011-07-17 21:31:38 +02:00
board-mop500.h mach-ux500: Add SDI support for snowball board 2011-06-23 12:04:56 +02:00
board-u5500-sdi.c mach-ux500: config Ux500 PL011 PL022 PL180 for DMA 2011-03-14 14:05:14 +01:00
board-u5500.c mach-ux500: add lm3530 ALS platform data for U5500 2011-07-25 20:57:15 -07:00
clock.c Merge branch 'next/devel' of ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc 2011-07-26 17:41:04 -07:00
clock.h ux500: add debugfs support for powerdebug 2010-12-20 13:32:45 +01:00
cpu-db5500.c mach-ux500: iomap PRCMU TCDM memory 2011-06-21 10:57:42 +02:00
cpu-db8500.c gpio/nomadik: fix sleepmode for elder Nomadik 2011-06-09 15:03:38 -06:00
cpu.c ARM: mach-ux500: unlock I&D l2x0 caches before init 2011-09-22 14:07:34 +02:00
devices-common.c plat-nomadik: support varying number of GPIOs per block 2011-03-14 14:05:14 +01:00
devices-common.h ARM: 6830/1: mach-ux500: force PrimeCell revisions 2011-05-26 10:33:35 +01:00
devices-db5500.h ARM: 6830/1: mach-ux500: force PrimeCell revisions 2011-05-26 10:33:35 +01:00
devices-db8500.c mach-ux500: config Ux500 PL011 PL022 PL180 for DMA 2011-03-14 14:05:14 +01:00
devices-db8500.h ARM: 6830/1: mach-ux500: force PrimeCell revisions 2011-05-26 10:33:35 +01:00
devices.c ux500: rework device registration 2010-12-08 13:14:06 +01:00
dma-db5500.c mach-ux500: add MUSB to db5500 devices 2011-03-14 14:05:12 +01:00
headsmp.S ARM: 6539/1: ux500: remove unnecessary barrier from the secondary startup 2010-12-24 09:50:26 +00:00
hotplug.c ARM: CPU hotplug: remove bug checks in platform_cpu_die() 2010-12-20 15:09:10 +00:00
id.c ux500: dynamic SOC detection 2011-01-10 18:34:53 +01:00
Kconfig ARM: mach-ux500: enable fix for ARM errata 754322 2011-09-22 14:07:20 +02:00
localtimer.c ARM: 6759/1: smp: Select local timers vs broadcast timer support runtime 2011-02-23 17:54:27 +00:00
Makefile mfd: update DB8500 PRCMU driver 2011-05-24 22:18:57 +02:00
Makefile.boot ARM: 5832/1: ARM: U8500 Makefile.boot 2009-11-28 10:22:52 +00:00
mbox-db5500.c treewide: Fix iomap resource size miscalculations 2011-04-10 17:01:04 +02:00
modem-irq-db5500.c arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
pins-db5500.h ARM: 6371/1: ux500: add DB5500 pins 2010-09-19 12:12:26 +01:00
pins-db8500.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2010-10-25 07:59:01 -07:00
platsmp.c ARM: 6993/1: platsmp: Allow secondary cpu hotplug with maxcpus=1 2011-07-07 14:45:07 +01:00
ste-dma40-db5500.h ARM: 6372/1: ux500: add DB5500 DMA event lines 2010-09-19 12:12:27 +01:00
ste-dma40-db8500.h ARM: 6418/1: ux500: rename DB8500 DMA event line macros 2010-10-04 19:46:07 +01:00
usb.c mach-ux500: fix USB build error 2011-06-27 19:45:40 +02:00