hi all, i got the interrupt handler working for SPI Receive in PPC 440 using install_hdlr(). Now i am trying to enable the External IRQ0 in my stand alone application. I am trying to detect the positive of the interrupt pulse, so i wrote corresponding bit to the UIC0_PR and UIC0_EN register and also calling the install_hdlr(). but still it detects the zero state at the IRQ0 pin and always executes the interrupt handler. when i read back the DCRs UIC0 enable and polarity registers using my application, the control word is fine. but when i read using uboot commands getdcr in command window, the status of both enable and polarity registers are not enabled for IRQ0. when i try to set the corresponding bit for IRQ0 using setdcr, it gives me message, "Masking bogus interrupt for 0x17" where am i going wrong.Some one please help. Thanks in advance.
Thanks & Regards, Prathika R. Stefan Roese wrote: > On Wednesday 08 April 2009, prathika wrote: >> I am working on u-boot 1.1.6 version for PowerPC 440. > > First of all. v1.1.6 is really old. I suggest that you use the current > (latest) version instead. > >> I am using the >> hello world application from the examples folder. >> I had no issues in loading and executing it. >> Now I have enabled SPI interrupt in the application. I have written for >> SPI loopback. >> My issue is, as there is no interrupt handler defined for the SPI in >> uboot, whenever i execute my application, >> it says "Masking bogus interrupt for Vector 0x08". I am calling >> "install_irq_handler" function for assigning my own interrupt handler >> for SPI as part of my application itself. >> I can understand that, there is no exclusive handler for SPI in uboot, >> so it is disabling the SPI interrupt and printing the BOGUS INTERRUPT >> message. >> Now how do I get rid of this and have my own interrupt handler?? > > You just need to install you "own" interrupt handler. This is done via > install_hdlr(). See examples/interrupt.c. > > Best regards, > Stefan > > ===================================================================== > DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel > HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany > Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: off...@denx.de > ===================================================================== _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
