diff options
Diffstat (limited to 'cpu/ppc4xx/interrupts.c')
| -rw-r--r-- | cpu/ppc4xx/interrupts.c | 123 |
1 files changed, 109 insertions, 14 deletions
diff --git a/cpu/ppc4xx/interrupts.c b/cpu/ppc4xx/interrupts.c index 1d8dc7c..fdae846 100644 --- a/cpu/ppc4xx/interrupts.c +++ b/cpu/ppc4xx/interrupts.c @@ -48,18 +48,22 @@ struct irq_action { }; static struct irq_action irq_vecs[32]; +void uic0_interrupt( void * parms); /* UIC0 handler */ #if defined(CONFIG_440) static struct irq_action irq_vecs1[32]; /* For UIC1 */ void uic1_interrupt( void * parms); /* UIC1 handler */ -#if defined(CONFIG_440GX) +#if defined(CONFIG_440GX) || defined(CONFIG_440SPE) static struct irq_action irq_vecs2[32]; /* For UIC2 */ - -void uic0_interrupt( void * parms); /* UIC0 handler */ void uic2_interrupt( void * parms); /* UIC2 handler */ -#endif /* CONFIG_440GX */ +#endif /* CONFIG_440GX CONFIG_440SPE */ + +#if defined(CONFIG_440SPE) +static struct irq_action irq_vecs3[32]; /* For UIC3 */ +void uic3_interrupt( void * parms); /* UIC3 handler */ +#endif /* CONFIG_440SPE */ #endif /* CONFIG_440 */ @@ -115,11 +119,16 @@ int interrupt_init_cpu (unsigned *decrementer_count) irq_vecs1[vec].handler = NULL; irq_vecs1[vec].arg = NULL; irq_vecs1[vec].count = 0; -#if defined(CONFIG_440GX) +#if defined(CONFIG_440GX) || defined(CONFIG_440SPE) irq_vecs2[vec].handler = NULL; irq_vecs2[vec].arg = NULL; irq_vecs2[vec].count = 0; #endif /* CONFIG_440GX */ +#if defined(CONFIG_440SPE) + irq_vecs3[vec].handler = NULL; + irq_vecs3[vec].arg = NULL; + irq_vecs3[vec].count = 0; +#endif /* CONFIG_440SPE */ #endif } @@ -221,6 +230,34 @@ void external_interrupt(struct pt_regs *regs) } /* external_interrupt CONFIG_440GX */ +#elif defined(CONFIG_440SPE) +void external_interrupt(struct pt_regs *regs) +{ + ulong uic_msr; + + /* + * Read masked interrupt status register to determine interrupt source + */ + /* 440 SPe uses base uic register */ + uic_msr = mfdcr(uic0msr); + + if ( (UICB0_UIC1CI & uic_msr) || (UICB0_UIC1NCI & uic_msr) ) + uic1_interrupt(0); + + if ( (UICB0_UIC2CI & uic_msr) || (UICB0_UIC2NCI & uic_msr) ) + uic2_interrupt(0); + + if ( (UICB0_UIC3CI & uic_msr) || (UICB0_UIC3NCI & uic_msr) ) + uic3_interrupt(0); + + if (uic_msr & ~(UICB0_ALL)) + uic0_interrupt(0); + + mtdcr(uic0sr, uic_msr); + + return; +} /* external_interrupt CONFIG_440SPE */ + #else void external_interrupt(struct pt_regs *regs) @@ -266,7 +303,7 @@ void external_interrupt(struct pt_regs *regs) } #endif -#if defined(CONFIG_440GX) +#if defined(CONFIG_440GX) || defined(CONFIG_440SPE) /* Handler for UIC0 interrupt */ void uic0_interrupt( void * parms) { @@ -357,8 +394,8 @@ void uic1_interrupt( void * parms) } #endif /* defined(CONFIG_440) */ -#if defined(CONFIG_440GX) -/* Handler for UIC1 interrupt */ +#if defined(CONFIG_440GX) || defined(CONFIG_440SPE) +/* Handler for UIC2 interrupt */ void uic2_interrupt( void * parms) { ulong uic2_msr; @@ -384,7 +421,7 @@ void uic2_interrupt( void * parms) (*irq_vecs2[vec].handler)(irq_vecs2[vec].arg); } else { mtdcr(uic2er, mfdcr(uic2er) & ~(0x80000000 >> vec)); - printf ("Masking bogus interrupt vector (uic1) 0x%x\n", vec); + printf ("Masking bogus interrupt vector (uic2) 0x%x\n", vec); } /* @@ -402,6 +439,51 @@ void uic2_interrupt( void * parms) } #endif /* defined(CONFIG_440GX) */ +#if defined(CONFIG_440SPE) +/* Handler for UIC3 interrupt */ +void uic3_interrupt( void * parms) +{ + ulong uic3_msr; + ulong msr_shift; + int vec; + + /* + * Read masked interrupt status register to determine interrupt source + */ + uic3_msr = mfdcr(uic3msr); + msr_shift = uic3_msr; + vec = 0; + + while (msr_shift != 0) { + if (msr_shift & 0x80000000) { + /* + * Increment irq counter (for debug purpose only) + */ + irq_vecs3[vec].count++; + + if (irq_vecs3[vec].handler != NULL) { + /* call isr */ + (*irq_vecs3[vec].handler)(irq_vecs3[vec].arg); + } else { + mtdcr(uic3er, mfdcr(uic3er) & ~(0x80000000 >> vec)); + printf ("Masking bogus interrupt vector (uic3) 0x%x\n", vec); + } + + /* + * After servicing the interrupt, we have to remove the status indicator. + */ + mtdcr(uic3sr, (0x80000000 >> vec)); + } + + /* + * Shift msr to next position and increment vector + */ + msr_shift <<= 1; + vec++; + } +} +#endif /* defined(CONFIG_440SPE) */ + /****************************************************************************/ /* @@ -414,7 +496,7 @@ void irq_install_handler (int vec, interrupt_handler_t * handler, void *arg) int i = vec; #if defined(CONFIG_440) -#if defined(CONFIG_440GX) +#if defined(CONFIG_440GX) || defined(CONFIG_440SPE) if ((vec > 31) && (vec < 64)) { i = vec - 32; irqa = irq_vecs1; @@ -441,7 +523,7 @@ void irq_install_handler (int vec, interrupt_handler_t * handler, void *arg) irqa[i].arg = arg; #if defined(CONFIG_440) -#if defined(CONFIG_440GX) +#if defined(CONFIG_440GX) || defined(CONFIG_440SPE) if ((vec > 31) && (vec < 64)) mtdcr (uic1er, mfdcr (uic1er) | (0x80000000 >> i)); else if (vec > 63) @@ -464,7 +546,7 @@ void irq_free_handler (int vec) int i = vec; #if defined(CONFIG_440) -#if defined(CONFIG_440GX) +#if defined(CONFIG_440GX) || defined(CONFIG_440SPE) if ((vec > 31) && (vec < 64)) { irqa = irq_vecs1; i = vec - 32; @@ -485,7 +567,7 @@ void irq_free_handler (int vec) #endif #if defined(CONFIG_440) -#if defined(CONFIG_440GX) +#if defined(CONFIG_440GX) || defined(CONFIG_440SPE) if ((vec > 31) && (vec < 64)) mtdcr (uic1er, mfdcr (uic1er) & ~(0x80000000 >> i)); else if (vec > 63) @@ -553,7 +635,7 @@ do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) printf("\n"); #endif -#if defined(CONFIG_440GX) +#if defined(CONFIG_440GX) || defined(CONFIG_440SPE) printf ("\nUIC 2\n"); printf ("Nr Routine Arg Count\n"); @@ -566,6 +648,19 @@ do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) printf("\n"); #endif +#if defined(CONFIG_440SPE) + printf ("\nUIC 3\n"); + printf ("Nr Routine Arg Count\n"); + + for (vec=0; vec<32; vec++) { + if (irq_vecs3[vec].handler != NULL) + printf ("%02d %08lx %08lx %d\n", + vec+63, (ulong)irq_vecs3[vec].handler, + (ulong)irq_vecs3[vec].arg, irq_vecs3[vec].count); + } + printf("\n"); +#endif + return 0; } #endif /* CONFIG_COMMANDS & CFG_CMD_IRQ */ |