Hello, Dmytro Bablinyuk
In message <2005-12-12 14:00:46 dmytro.bablinyuk at rftechnology.com.au> you
wrote:
>
>By the way question - shall I program somewhere an edge of the IRQ or it
>always triggers on the rising edge?
>
IRQ_POLARITY_POSITIVE /* high level or low->high edge */
IRQ_POLARITY_NEGATIVE /* low level or high->low edge */
you should modify OpenPIC_InitSenses, example my board:
static u_char sc82xx_openpic_initsenses[] __initdata = {
#if defined(CONFIG_SVM_GEMINI)
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* EPIC IRQ 0,PCI0 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* EPIC IRQ 1 ,PCI1*/
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* EPIC IRQ 2 ,PCI2 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* DUART CH1 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* DUART CH2 */
(IRQ_SENSE_EDGE | IRQ_POLARITY_NEGATIVE), /* EPIC IRQ3, PCI3 or DPRAM */
(IRQ_SENSE_EDGE | IRQ_POLARITY_NEGATIVE), /* EPIC IRQ4, DPRAM */
#elif defined (CONFIG_SVM_IT6160A)
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* EPIC IRQ 0 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* EPIC IRQ 1 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* EPIC IRQ 2, xr16L788
chip1*/
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* DUART CH1 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* DUART CH2 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* EPIC IRQ3, xr16L788 chip2*/
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* EPIC IRQ4,spare */
#else
#error No board defined.!!!
#endif
};
static void __init
sc82xx_init_IRQ(void)
{
OpenPIC_InitSenses = sc82xx_openpic_initsenses;
OpenPIC_NumInitSenses = sizeof(sc82xx_openpic_initsenses);
/*
* We need to tell openpic_set_sources where things actually are.
* mpc10x_common will setup OpenPIC_Addr at ioremap(EUMB phys base +
* EPIC offset (0x40000)); The EPIC IRQ Register Address Map -
* Interrupt Source Configuration Registers gives these numbers
* as offsets starting at 0x50200, we need to adjust occordinly.
*/
openpic_set_sources(0, 3, OpenPIC_Addr + 0x10200); /* 0=IRQ0, 1=IRQ1,
2=IRQ2 *
openpic_set_sources(3, 2, OpenPIC_Addr + 0x11120); /* 3=UART0, 4=UART1
*
openpic_set_sources(5, 2, OpenPIC_Addr + 0x10260); /* 5=IRQ3, 6=IRQ4
*
openpic_init (0);
}
= = = = = = = = = = = = = = = = = = = =
debora liu
deboraliu at tom.com
2005-12-12
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