diff options
| author | Manuel Lauss <manuel.lauss@googlemail.com> | 2011-08-12 08:28:35 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2011-09-21 17:53:32 +0200 |
| commit | dd0a028183369cccc0826199a7ccdc850ece289b (patch) | |
| tree | 67c07381130b821bbbd9554cf761c738f4e4e954 /arch/mips/alchemy/devboards/db1200/setup.c | |
| parent | b7867f1bfcb76c75d98d35f576fcd9d7759a96fe (diff) | |
MIPS: Alchemy: DB1200: Disable cascade IRQ in handler
Disable the cascade IRQ in the cascade handler. This is required to
get the DB1300 working, and also gets rid of all spurious interrupts
previously observed on the DB1200; so Config[OD] can be disabled
again for better performance.
Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/2708/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/alchemy/devboards/db1200/setup.c')
| -rw-r--r-- | arch/mips/alchemy/devboards/db1200/setup.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/mips/alchemy/devboards/db1200/setup.c b/arch/mips/alchemy/devboards/db1200/setup.c index 1dac4f27d33..4a8980027ec 100644 --- a/arch/mips/alchemy/devboards/db1200/setup.c +++ b/arch/mips/alchemy/devboards/db1200/setup.c @@ -23,13 +23,6 @@ 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); |