[PATCH v2] powerpc/4xx: DTS: Add Add'l SDRAM0 Compatible and Interrupt Info
Grant Erickson
gerickson at nuovations.com
Fri Dec 19 05:04:48 EST 2008
On 12/18/08 9:56 AM, Josh Boyer wrote:
> On Thu, Dec 18, 2008 at 09:04:23AM +0100, Stefan Roese wrote:
>> On Thursday 18 December 2008, Grant Erickson wrote:
>>> diff --git a/arch/powerpc/boot/dts/haleakala.dts
>>> b/arch/powerpc/boot/dts/haleakala.dts index 513bc43..64880ab 100644
>>> --- a/arch/powerpc/boot/dts/haleakala.dts
>>> +++ b/arch/powerpc/boot/dts/haleakala.dts
>>> @@ -89,8 +89,14 @@
>>> clock-frequency = <0>; /* Filled in by U-Boot */
>>>
>>> SDRAM0: memory-controller {
>>> - compatible = "ibm,sdram-405exr";
>>> + compatible = "ibm,sdram-405exr", "ibm,sdram-4xx-ddr2";
>>> dcr-reg = <0x010 0x002>;
>>> + #interrupt-cells = <1>;
>>> + interrupt-parent = <&SDRAM0>;
>>> + interrupts = <0x0 0x1>;
>>> + interrupt-map = </* ECCDED Error */ 0x0 &UIC2 0x5 0x4
>>> + /* ECCSEC Error */ 0x1 &UIC2 0x6 0x4>;
>>> + interrupt-map-mask = <0xffffffff>;
>>
>> When all interrupts are mapped the same parent, this should do as well:
>>
>> interrupt-parent = <&UIC2>;
>> interrupts = <0x5 0x4 /* ECCDED Error */
>> 0x6 0x4>; /* ECCSEC Error */
>>
>> Other than this:
>>
>> Acked-by: Stefan Roese <sr at denx.de>
>
> Yeah, I agree. Adding an interrupt map when it's not needed is
> just complexity that doesn't need to be there.
Stefan and Josh:
>From a programmatic perspective, does the above still allow the code to
index virtual interrupt indices 0 and 1 rather than 5 and 6 when calling
irq_of_parse_and_map()?
Regards,
Grant
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