diff options
Diffstat (limited to 'cpu')
| -rw-r--r-- | cpu/ppc4xx/interrupts.c | 29 | ||||
| -rw-r--r-- | cpu/sa1100/interrupts.c | 21 |
2 files changed, 44 insertions, 6 deletions
diff --git a/cpu/ppc4xx/interrupts.c b/cpu/ppc4xx/interrupts.c index 71052b4..7fa2f77 100644 --- a/cpu/ppc4xx/interrupts.c +++ b/cpu/ppc4xx/interrupts.c @@ -170,9 +170,21 @@ int interrupt_init_cpu (unsigned *decrementer_count) #endif #if defined(CONFIG_440_GX) + /* Take the GX out of compatibility mode + * Travis Sawyer, 9 Mar 2004 + * NOTE: 440gx user manual inconsistency here + * Compatibility mode and Ethernet Clock select are not + * correct in the manual + */ + mfsdr(sdr_mfr, val); + val &= ~0x10000000; + mtsdr(sdr_mfr,val); + /* Enable UIC interrupts via UIC Base Enable Register */ - mtdcr(uicb0er, UICB0_ALL); - mtdcr(uicb0cr, UICB0_ALL); + mtdcr(uicb0sr, UICB0_ALL); + mtdcr(uicb0er, 0x54000000); + /* None are critical */ + mtdcr(uicb0cr, 0); #endif return (0); @@ -194,11 +206,16 @@ void external_interrupt(struct pt_regs *regs) /* 440 GX uses base uic register */ uic_msr = mfdcr(uicb0msr); - uic0_interrupt(0); - uic1_interrupt(0); - uic2_interrupt(0); + if ( (UICB0_UIC0CI & uic_msr) || (UICB0_UIC0NCI & uic_msr) ) + uic0_interrupt(0); - mtdcr(uicb0sr, UICB0_ALL); + if ( (UICB0_UIC1CI & uic_msr) || (UICB0_UIC1NCI & uic_msr) ) + uic1_interrupt(0); + + if ( (UICB0_UIC2CI & uic_msr) || (UICB0_UIC2NCI & uic_msr) ) + uic2_interrupt(0); + + mtdcr(uicb0sr, uic_msr); return; diff --git a/cpu/sa1100/interrupts.c b/cpu/sa1100/interrupts.c index 75f939c..00b6d2a 100644 --- a/cpu/sa1100/interrupts.c +++ b/cpu/sa1100/interrupts.c @@ -218,3 +218,24 @@ void udelay_masked (unsigned long usec) while (tmo >= get_timer_masked ()) /*NOP*/; } + +/* + * This function is derived from PowerPC code (read timebase as long long). + * On ARM it just returns the timer value. + */ +unsigned long long get_ticks(void) +{ + return get_timer(0); +} + +/* + * This function is derived from PowerPC code (timebase clock frequency). + * On ARM it returns the number of timer ticks per second. + */ +ulong get_tbclk (void) +{ + ulong tbclk; + + tbclk = CFG_HZ; + return tbclk; +} |