> What you're suggesting brings back the old hacking behavior. Again I
> say, look at what lopec_setup.c does for handling interrupts, look at
> the manual for the prpmc800 (and the MPC107 (OpenPIC/EPIC related bits)
> or MPC8240 (again, OpenPIC/EPIC)) manuals.
>
OK, hope this is a correct solution then (it works, which is a good thing)
. Thanks for your patience, all the levels in the interrupt handling are a
bit hairy to understand.
Regards
Anders Blomdell
--- ../2002-10-14/arch/ppc/platforms/prpmc800_setup.c Fri Oct 11 17:58:31
2002
+++ arch/ppc/platforms/prpmc800_setup.c Fri Oct 25 18:33:49 2002
@@ -53,23 +53,23 @@
static u_char prpmc800_openpic_initsenses[] __initdata =
{
- 1, /* PRPMC800_INT_HOSTINT0 */
- 1, /* PRPMC800_INT_UNUSED */
- 1, /* PRPMC800_INT_DEBUGINT */
- 1, /* PRPMC800_INT_HARRIER_WDT */
- 1, /* PRPMC800_INT_UNUSED */
- 1, /* PRPMC800_INT_UNUSED */
- 1, /* PRPMC800_INT_HOSTINT1 */
- 1, /* PRPMC800_INT_HOSTINT2 */
- 1, /* PRPMC800_INT_HOSTINT3 */
- 1, /* PRPMC800_INT_PMC_INTA */
- 1, /* PRPMC800_INT_PMC_INTB */
- 1, /* PRPMC800_INT_PMC_INTC */
- 1, /* PRPMC800_INT_PMC_INTD */
- 1, /* PRPMC800_INT_UNUSED */
- 1, /* PRPMC800_INT_UNUSED */
- 1, /* PRPMC800_INT_UNUSED */
- 1, /* PRPMC800_INT_HARRIER_INT (UARTS, ABORT, DMA) */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_HOSTINT0 *
/
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_UNUSED */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_DEBUGINT *
/
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_HARRIER_WDT
*/
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_UNUSED */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_UNUSED */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_HOSTINT1 *
/
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_HOSTINT2 *
/
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_HOSTINT3 *
/
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_PMC_INTA *
/
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_PMC_INTB *
/
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_PMC_INTC *
/
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_PMC_INTD *
/
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_UNUSED */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_UNUSED */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_UNUSED */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_HARRIER_INT
(UARTS, ABORT, DMA) */
};
static int
@@ -105,9 +105,6 @@
conswitchp = &dummy_con;
#endif
- OpenPIC_InitSenses = prpmc800_openpic_initsenses;
- OpenPIC_NumInitSenses = sizeof(prpmc800_openpic_initsenses);
-
printk("PrPMC800 port (C) 2001 MontaVista Software, Inc. (source at m
vista.com)\n");
}
@@ -198,14 +195,16 @@
static void __init
prpmc800_init_IRQ(void)
{
- openpic_init(0);
+ OpenPIC_InitSenses = prpmc800_openpic_initsenses;
+ OpenPIC_NumInitSenses = sizeof(prpmc800_openpic_initsenses);
-#define PRIORITY 15
-#define VECTOR 16
-#define PROCESSOR 0
- /* initialize the harrier's internal interrupt priority 15, irq 1
*/
- out_be32((u32 *)HARRIER_IFEVP_REG, (PRIORITY<<16) | VECTOR);
- out_be32((u32 *)HARRIER_IFEDE_REG, (1<<PROCESSOR));
+ // Setup external interrupt sources
+ openpic_set_sources(0, 16, OpenPIC_Addr + 0x10000);
+ // Setup internal UART interrupt source
+ openpic_set_sources(16, 1, OpenPIC_Addr + 0x10200);
+
+ // Do the MPIC initialization based on the above settings
+ openpic_init(0);
/* enable functional exceptions for uarts and abort */
out_8((u8 *)HARRIER_FEEN_REG, (HARRIER_FE_UA0|HARRIER_FE_UA1));
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