u-boot-brain/arch
Paul Burton c5b8412d60 MIPS: Ensure Config.K0=2 applies before any memory accesses
During boot we set Config.K0=2 (uncached) such that any accesses to the
kseg0 memory region are performed uncached before the caches are
initialised. This write to the Config register introduces an execution
hazard between it & any following memory accesses (such as the load of
_gp), which we need to clear in order to ensure those memory accesses
are actually performed uncached. Clear this execution hazard with the
insertion of an ehb execution hazard barrier instruction.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
2016-09-21 15:04:04 +02:00
..
arc arc: Use -mcpu=XXX instead of obsolete -marcXXX 2016-09-16 12:12:26 +03:00
arm Merge branch 'master' of git://git.denx.de/u-boot-uniphier 2016-09-18 14:05:30 -04:00
avr32 avr32: Drop unused code in u-boot.h 2016-05-27 15:39:52 -04:00
blackfin configs: Re-sync almost all of cmd/Kconfig 2016-04-25 15:09:40 -04:00
m68k net: mii: Changes not made by spatch 2016-08-15 15:29:03 -05:00
microblaze Remove unneeded remnants of bcopy(). 2016-06-06 13:39:18 -04:00
mips MIPS: Ensure Config.K0=2 applies before any memory accesses 2016-09-21 15:04:04 +02:00
nds32 arm, nds32, sh: remove useless ioremap()/iounmap() defines 2016-07-14 18:22:25 -04:00
nios2 Delete tests of CONFIG_OF_LIBFDT when testing CONFIG_OF_BOARD_SETUP 2016-05-27 15:41:16 -04:00
openrisc openrisc: Drop the arch-specific board init 2016-05-27 15:39:50 -04:00
powerpc Convert CONFIG_SPL_DRIVERS_MISC_SUPPORT to Kconfig 2016-09-16 17:27:08 -04:00
sandbox cmd: Split 'bootz' and 'booti' out from 'bootm' 2016-08-20 11:35:07 -04:00
sh arm, nds32, sh: remove useless ioremap()/iounmap() defines 2016-07-14 18:22:25 -04:00
sparc Fix spelling of "transferred". 2016-03-22 12:16:16 -04:00
x86 x86: efi: Fix EFI 64-bit payload build warnings 2016-08-30 09:26:05 +08:00
xtensa xtensa: add support for the 'xtfpga' evaluation board 2016-08-15 18:46:40 -04:00
.gitignore .gitignore: drop include/asm/proc from ignore pattern 2014-06-19 11:18:54 -04:00
Kconfig xtensa: add support for the xtensa processor architecture [2/2] 2016-08-15 18:46:38 -04:00