u-boot-brain/arch
Kumar Gala 43f082bb7f powerpc/85xx: Add workaround for erratum CPU-A003999
Erratum A-003999: Running Floating Point instructions requires special
initialization.

Impact:
Floating point arithmetic operations may result in an incorrect value.

Workaround:
Perform a read modify write to set bit 7 to a 1 in SPR 977 before
executing any floating point arithmetic operation. This bit can be set
when setting MSR[FP], and can be cleared when clearing MSR[FP].
Alternatively, the bit can be set once at boot time, and never cleared.
There will be no performance degradation due to setting this bit.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-11-29 08:48:05 -06:00
..
arm hawkboard: Replace HAWKBOARD_KICK{0, 1}_UNLOCK defines 2011-11-27 19:45:35 +01:00
avr32 avr32: Use getenv_ulong() in place of getenv(), strtoul 2011-10-23 23:33:17 +02:00
blackfin Blackfin: cache result of cpp check 2011-11-18 22:13:26 -05:00
m68k m68k: Use getenv_ulong() in place of getenv(), strtoul 2011-10-23 23:33:18 +02:00
microblaze microblaze: Fix strict-aliasing rules for in_be32 2011-10-24 07:57:03 +02:00
mips mips: Use getenv_ulong() in place of getenv(), strtoul 2011-10-23 23:33:19 +02:00
nds32 nds32/ag101: clean up for SoC related code 2011-11-23 14:05:51 +08:00
nios2 nios2: Offer ft_board_setup() capability and call fdt_fixup_ethernet(). 2011-10-30 21:02:43 +08:00
powerpc powerpc/85xx: Add workaround for erratum CPU-A003999 2011-11-29 08:48:05 -06:00
sandbox sandbox: drop unused return 2011-11-03 22:35:25 +01:00
sh cosmetic: s/BOARD_LATE_INIT/CONFIG_BOARD_LATE_INIT 2011-10-27 23:53:59 +02:00
sparc sparc: Use getenv_ulong() in place of getenv(), strtoul 2011-10-23 23:33:19 +02:00
x86 Reduce build times 2011-11-03 20:44:58 +01:00
.gitignore update include/asm/ gitignore after move 2010-05-07 00:17:30 +02:00