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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-14 22:05:21 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-14 22:05:21 +0100
commit4964e0664c80680fa6b28ef91381c076a5b25c2c (patch)
tree62099c5aaeee7274bcc66bcfba35d479affa97cf /arch/mips/alchemy/devboards/bcsr.c
parentMerge tag 'for-linus' of git://github.com/rustyrussell/linux (diff)
parentMerge branches 'next/ar7', 'next/ath79', 'next/bcm63xx', 'next/bmips', 'next/... (diff)
downloadlinux-4964e0664c80680fa6b28ef91381c076a5b25c2c.tar.xz
linux-4964e0664c80680fa6b28ef91381c076a5b25c2c.zip
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (119 commits) MIPS: Delete unused function add_temporary_entry. MIPS: Set default pci cache line size. MIPS: Flush huge TLB MIPS: Octeon: Remove SYS_SUPPORTS_HIGHMEM. MIPS: Octeon: Add support for OCTEON II PCIe MIPS: Octeon: Update PCI Latency timer and enable more error reporting. MIPS: Alchemy: Update cpu-feature-overrides MIPS: Alchemy: db1200: Improve PB1200 detection. MIPS: Alchemy: merge Au1000 and Au1300-style IRQ controller code. MIPS: Alchemy: chain IRQ controllers to MIPS IRQ controller MIPS: Alchemy: irq: register pm at irq init time MIPS: Alchemy: Touchscreen support on DB1100 MIPS: Alchemy: Hook up IrDA on DB1000/DB1100 net/irda: convert au1k_ir to platform driver. MIPS: Alchemy: remove unused board headers MTD: nand: make au1550nd.c a platform_driver MIPS: Netlogic: Mark Netlogic chips as SMT capable MIPS: Netlogic: Add support for XLP 3XX cores MIPS: Netlogic: Merge some of XLR/XLP wakup code MIPS: Netlogic: Add default XLP config. ... Fix up trivial conflicts in arch/mips/kernel/{perf_event_mipsxx.c, traps.c} and drivers/tty/serial/Makefile
Diffstat (limited to 'arch/mips/alchemy/devboards/bcsr.c')
-rw-r--r--arch/mips/alchemy/devboards/bcsr.c11
1 files changed, 2 insertions, 9 deletions
diff --git a/arch/mips/alchemy/devboards/bcsr.c b/arch/mips/alchemy/devboards/bcsr.c
index 463d2c4d9441..1e83ce2e1147 100644
--- a/arch/mips/alchemy/devboards/bcsr.c
+++ b/arch/mips/alchemy/devboards/bcsr.c
@@ -97,14 +97,9 @@ static void bcsr_csc_handler(unsigned int irq, struct irq_desc *d)
enable_irq(irq);
}
-/* NOTE: both the enable and mask bits must be cleared, otherwise the
- * CPLD generates tons of spurious interrupts (at least on my DB1200).
- * -- mlau
- */
static void bcsr_irq_mask(struct irq_data *d)
{
unsigned short v = 1 << (d->irq - bcsr_csc_base);
- __raw_writew(v, bcsr_virt + BCSR_REG_INTCLR);
__raw_writew(v, bcsr_virt + BCSR_REG_MASKCLR);
wmb();
}
@@ -112,7 +107,6 @@ static void bcsr_irq_mask(struct irq_data *d)
static void bcsr_irq_maskack(struct irq_data *d)
{
unsigned short v = 1 << (d->irq - bcsr_csc_base);
- __raw_writew(v, bcsr_virt + BCSR_REG_INTCLR);
__raw_writew(v, bcsr_virt + BCSR_REG_MASKCLR);
__raw_writew(v, bcsr_virt + BCSR_REG_INTSTAT); /* ack */
wmb();
@@ -121,7 +115,6 @@ static void bcsr_irq_maskack(struct irq_data *d)
static void bcsr_irq_unmask(struct irq_data *d)
{
unsigned short v = 1 << (d->irq - bcsr_csc_base);
- __raw_writew(v, bcsr_virt + BCSR_REG_INTSET);
__raw_writew(v, bcsr_virt + BCSR_REG_MASKSET);
wmb();
}
@@ -137,9 +130,9 @@ void __init bcsr_init_irq(int csc_start, int csc_end, int hook_irq)
{
unsigned int irq;
- /* mask & disable & ack all */
- __raw_writew(0xffff, bcsr_virt + BCSR_REG_INTCLR);
+ /* mask & enable & ack all */
__raw_writew(0xffff, bcsr_virt + BCSR_REG_MASKCLR);
+ __raw_writew(0xffff, bcsr_virt + BCSR_REG_INTSET);
__raw_writew(0xffff, bcsr_virt + BCSR_REG_INTSTAT);
wmb();