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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-19 16:40:47 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-19 16:40:47 -0700 |
| commit | fce4a1dda2f1a9a25b3e5b7cd951070e0b42a818 (patch) | |
| tree | 03a3f76c5b3d4f3b05dff44c307dbbb64ec5c510 /arch/mips/alchemy/devboards/db1200/setup.c | |
| parent | e1f2084ed200eb31f2c9d1efe70569c76889c980 (diff) | |
| parent | 6f6c3c33c027f2c83d53e8562cd9daa73fe8108b (diff) | |
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: (48 commits)
MIPS: Move arch_get_unmapped_area and gang to new file.
MIPS: Cleanup arch_get_unmapped_area
MIPS: Octeon: Don't request interrupts for unused IPI mailbox bits.
Octeon: Fix interrupt irq settings for performance counters.
MIPS: Fix build warnings on defconfigs
MIPS: Lemote 2F, Malta: Fix build warning
MIPS: Set ELF AT_PLATFORM string for Loongson2 processors
MIPS: Set ELF AT_PLATFORM string for BMIPS processors
MIPS: Introduce set_elf_platform() helper function
MIPS: JZ4740: setup: Autodetect physical memory.
MIPS: BCM47xx: Fix MAC address parsing.
MIPS: BCM47xx: Extend the filling of SPROM from NVRAM
MIPS: BCM47xx: Register SSB fallback sprom callback
MIPS: BCM47xx: Extend bcm47xx_fill_sprom with prefix.
SSB: Change fallback sprom to callback mechanism.
MIPS: Alchemy: Clean up GPIO registers and accessors
MIPS: Alchemy: Cleanup DMA addresses
MIPS: Alchemy: Rewrite ethernet platform setup
MIPS: Alchemy: Rewrite UART setup and constants.
MIPS: Alchemy: Convert dbdma.c to syscore_ops
...
Diffstat (limited to 'arch/mips/alchemy/devboards/db1200/setup.c')
| -rw-r--r-- | arch/mips/alchemy/devboards/db1200/setup.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/mips/alchemy/devboards/db1200/setup.c b/arch/mips/alchemy/devboards/db1200/setup.c index 4a8980027ec..1dac4f27d33 100644 --- a/arch/mips/alchemy/devboards/db1200/setup.c +++ b/arch/mips/alchemy/devboards/db1200/setup.c @@ -23,6 +23,13 @@ void __init board_setup(void) unsigned long freq0, clksrc, div, pfc; unsigned short whoami; + /* Set Config[OD] (disable overlapping bus transaction): + * This gets rid of a _lot_ of spurious interrupts (especially + * wrt. IDE); but incurs ~10% performance hit in some + * cpu-bound applications. + */ + set_c0_config(1 << 19); + bcsr_init(DB1200_BCSR_PHYS_ADDR, DB1200_BCSR_PHYS_ADDR + DB1200_BCSR_HEXLED_OFS); |