Grant Likely wrote:
> On Sun, Nov 22, 2009 at 3:01 PM, Albert Herranz <albert_herr...@yahoo.es>
> wrote:
>> Add support for the interrupt controller included in the "Flipper"
>> chipset of the Nintendo GameCube video game console.
>> The same interrupt controller is also present in the "Hollywood" chipset
>> of the Nintendo Wii.
>>
>> Signed-off-by: Albert Herranz <albert_herr...@yahoo.es>
>> ---
>> arch/powerpc/platforms/embedded6xx/Kconfig | 6 +
>> arch/powerpc/platforms/embedded6xx/Makefile | 1 +
>> arch/powerpc/platforms/embedded6xx/flipper-pic.c | 247
>> ++++++++++++++++++++++
>> arch/powerpc/platforms/embedded6xx/flipper-pic.h | 25 +++
>> 4 files changed, 279 insertions(+), 0 deletions(-)
>> create mode 100644 arch/powerpc/platforms/embedded6xx/flipper-pic.c
>> create mode 100644 arch/powerpc/platforms/embedded6xx/flipper-pic.h
>>
>> diff --git a/arch/powerpc/platforms/embedded6xx/Kconfig
>> b/arch/powerpc/platforms/embedded6xx/Kconfig
>> index bfd88be..29a98c6 100644
>> --- a/arch/powerpc/platforms/embedded6xx/Kconfig
>> +++ b/arch/powerpc/platforms/embedded6xx/Kconfig
>> @@ -94,6 +94,7 @@ config MPC10X_STORE_GATHERING
>> config GAMECUBE_COMMON
>> bool
>> select NOT_COHERENT_CACHE
>> + select FLIPPER_PIC
>>
>> config USBGECKO_UDBG
>> bool "USB Gecko udbg console for the Nintendo GameCube/Wii"
>> @@ -108,3 +109,8 @@ config USBGECKO_UDBG
>>
>> If in doubt, say N here.
>>
>> +config FLIPPER_PIC
>> + bool
>> + depends on GAMECUBE_COMMON
>> + default y
>
> You'll always want this driver when GAMECUBE common is set. Don't add
> another Kconfig entry.
>
Ok.
>> +
>> diff --git a/arch/powerpc/platforms/embedded6xx/Makefile
>> b/arch/powerpc/platforms/embedded6xx/Makefile
>> index 0ab7492..35258fd 100644
>> --- a/arch/powerpc/platforms/embedded6xx/Makefile
>> +++ b/arch/powerpc/platforms/embedded6xx/Makefile
>> @@ -8,3 +8,4 @@ obj-$(CONFIG_PPC_HOLLY) += holly.o
>> obj-$(CONFIG_PPC_PRPMC2800) += prpmc2800.o
>> obj-$(CONFIG_PPC_C2K) += c2k.o
>> obj-$(CONFIG_USBGECKO_UDBG) += usbgecko_udbg.o
>> +obj-$(CONFIG_FLIPPER_PIC) += flipper-pic.o
>
>> +unsigned int flipper_pic_get_irq(void)
>> +{
>> + void __iomem *io_base = flipper_irq_host->host_data;
>> + int irq;
>> + u32 irq_status;
>> +
>> + irq_status = in_be32(io_base + FLIPPER_ICR) &
>> + in_be32(io_base + FLIPPER_IMR);
>> + if (irq_status == 0)
>> + return -1; /* no more IRQs pending */
>
> NO_IRQ_IGNORE
>
I'll fix that. Thanks.
I did it in the other interrupt controller but forgot about this.
>> +
>> + __asm__ __volatile__("cntlzw %0,%1" : "=r"(irq) : "r"(irq_status));
>> + return irq_linear_revmap(flipper_irq_host, 31 - irq);
>> +}
>> +
>
Thanks.
Cheers,
Albert
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