From: Stefan Roese <sr@denx.de>
To: Felix Radensky <felix@embedded-sol.com>
Cc: linuxppc-embedded@ozlabs.org
Subject: Re: GPIO interrupt on AMCC 460EX
Date: Thu, 28 Aug 2008 17:20:13 +0200 [thread overview]
Message-ID: <200808281720.13138.sr@denx.de> (raw)
In-Reply-To: <48B6B201.2070101@embedded-sol.com>
Felix,
On Thursday 28 August 2008, Felix Radensky wrote:
> I'm writing a Linux driver for CPLD access on custom
> 460EX based board. CPLD generates interrupt, which
> is connected to GPIO pin 45. According to 460EX user
> manual, this pin, if configured as alternate function 3,
> will generate external interrupt 12, which is mapped into
> irq 20 on UIC3. My question is - how do I get irq number
> suitable for passing to request_irq().
arch/powerpc now used virtual interrupts. You need to include this hardware
interrupt number into your device-tree (create a new node for your CPLD) and
extract the virtual irq number from there by calling irq_of_parse_and_map().
Best regards,
Stefan
next prev parent reply other threads:[~2008-08-28 15:25 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-28 14:11 GPIO interrupt on AMCC 460EX Felix Radensky
2008-08-28 15:20 ` Stefan Roese [this message]
2008-08-28 21:47 ` Felix Radensky
2008-08-29 15:31 ` MPC8568MDS RAMDISK Problem SETTE AGOSTINO - technolabs
2008-08-29 18:03 ` Bhupender Saharan
2008-08-29 21:45 ` Anatolij Gustschin
2008-09-01 9:02 ` SETTE AGOSTINO - technolabs
2008-09-02 10:10 ` Anatolij Gustschin
2008-09-02 13:18 ` SETTE AGOSTINO - technolabs
2008-09-02 21:27 ` Anatolij Gustschin
2008-09-03 9:30 ` SETTE AGOSTINO - technolabs
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