X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=cpu%2Fppc4xx%2Finterrupts.c;h=494bd8c9ef9573b8319a9be3c308c5d8112d23df;hb=2fd0aad443c966ce62008225e57b18e2dcf4e330;hp=8620e2b48476da48b2ad97f905f1ef9cd562f2a7;hpb=23c5189e6c969255f8c91b30fdf1cf81b698329d;p=platform%2Fkernel%2Fu-boot.git diff --git a/cpu/ppc4xx/interrupts.c b/cpu/ppc4xx/interrupts.c index 8620e2b..494bd8c 100644 --- a/cpu/ppc4xx/interrupts.c +++ b/cpu/ppc4xx/interrupts.c @@ -8,6 +8,10 @@ * (C) Copyright 2003 (440GX port) * Travis B. Sawyer, Sandburst Corporation, tsawyer@sandburst.com * + * (C) Copyright 2008 (PPC440X05 port for Virtex 5 FX) + * Ricardo Ribalda-Universidad Autonoma de Madrid-ricardo.ribalda@uam.es + * Work supported by Qtechnology (htpp://qtec.com) + * * See file CREDITS for list of people who contributed to this * project. * @@ -31,31 +35,14 @@ #include #include #include +#include #include #include #include -#include DECLARE_GLOBAL_DATA_PTR; /* - * Define the number of UIC's - */ -#if defined(CONFIG_440SPE) || \ - defined(CONFIG_460EX) || defined(CONFIG_460GT) -#define UIC_MAX 4 -#elif defined(CONFIG_440GX) || \ - defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \ - defined(CONFIG_405EX) -#define UIC_MAX 3 -#elif defined(CONFIG_440GP) || defined(CONFIG_440SP) || \ - defined(CONFIG_440EP) || defined(CONFIG_440GR) -#define UIC_MAX 2 -#else -#define UIC_MAX 1 -#endif - -/* * CPM interrupt vector functions. */ struct irq_action { @@ -63,15 +50,7 @@ struct irq_action { void *arg; int count; }; - -static struct irq_action irq_vecs[UIC_MAX * 32]; - -u32 get_dcr(u16); -void set_dcr(u16, u32); - -#if (UIC_MAX > 1) && !defined(CONFIG_440GX) -static void uic_cascade_interrupt(void *para); -#endif +static struct irq_action irq_vecs[IRQ_MAX]; #if defined(CONFIG_440) @@ -112,7 +91,7 @@ int interrupt_init_cpu (unsigned *decrementer_count) /* * Mark all irqs as free */ - for (vec = 0; vec < (UIC_MAX * 32); vec++) { + for (vec = 0; vec < IRQ_MAX; vec++) { irq_vecs[vec].handler = NULL; irq_vecs[vec].arg = NULL; irq_vecs[vec].count = 0; @@ -156,160 +135,38 @@ int interrupt_init_cpu (unsigned *decrementer_count) */ set_evpr(0x00000000); -#if !defined(CONFIG_440GX) -#if (UIC_MAX > 1) - /* Install the UIC1 handlers */ - irq_install_handler(VECNUM_UIC1NC, uic_cascade_interrupt, 0); - irq_install_handler(VECNUM_UIC1C, uic_cascade_interrupt, 0); -#endif -#if (UIC_MAX > 2) - irq_install_handler(VECNUM_UIC2NC, uic_cascade_interrupt, 0); - irq_install_handler(VECNUM_UIC2C, uic_cascade_interrupt, 0); -#endif -#if (UIC_MAX > 3) - irq_install_handler(VECNUM_UIC3NC, uic_cascade_interrupt, 0); - irq_install_handler(VECNUM_UIC3C, uic_cascade_interrupt, 0); -#endif -#else /* !defined(CONFIG_440GX) */ - /* 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 + /* + * Call uic or xilinx_irq pic_enable */ - mfsdr(sdr_mfr, val); - val &= ~0x10000000; - mtsdr(sdr_mfr,val); - - /* Enable UIC interrupts via UIC Base Enable Register */ - mtdcr(uicb0sr, UICB0_ALL); - mtdcr(uicb0er, 0x54000000); - /* None are critical */ - mtdcr(uicb0cr, 0); -#endif /* !defined(CONFIG_440GX) */ + pic_enable(); return (0); } -/* Handler for UIC interrupt */ -static void uic_interrupt(u32 uic_base, int vec_base) +void timer_interrupt_cpu(struct pt_regs *regs) { - u32 uic_msr; - u32 msr_shift; - int vec; - - /* - * Read masked interrupt status register to determine interrupt source - */ - uic_msr = get_dcr(uic_base + UIC_MSR); - msr_shift = uic_msr; - vec = vec_base; - - while (msr_shift != 0) { - if (msr_shift & 0x80000000) { - /* - * Increment irq counter (for debug purpose only) - */ - irq_vecs[vec].count++; - - if (irq_vecs[vec].handler != NULL) { - /* call isr */ - (*irq_vecs[vec].handler)(irq_vecs[vec].arg); - } else { - set_dcr(uic_base + UIC_ER, - get_dcr(uic_base + UIC_ER) & - ~(0x80000000 >> (vec & 0x1f))); - printf("Masking bogus interrupt vector %d" - " (UIC_BASE=0x%x)\n", vec, uic_base); - } - - /* - * After servicing the interrupt, we have to remove the - * status indicator - */ - set_dcr(uic_base + UIC_SR, (0x80000000 >> (vec & 0x1f))); - } - - /* - * Shift msr to next position and increment vector - */ - msr_shift <<= 1; - vec++; - } + /* nothing to do here */ + return; } -#if (UIC_MAX > 1) && !defined(CONFIG_440GX) -static void uic_cascade_interrupt(void *para) +void interrupt_run_handler(int vec) { - external_interrupt(para); -} -#endif - -#if defined(CONFIG_440) -#if defined(CONFIG_440GX) -/* 440GX uses base uic register */ -#define UIC_BMSR uicb0msr -#define UIC_BSR uicb0sr -#else -#define UIC_BMSR uic0msr -#define UIC_BSR uic0sr -#endif -#else /* CONFIG_440 */ -#define UIC_BMSR uicmsr -#define UIC_BSR uicsr -#endif /* CONFIG_440 */ - -/* - * Handle external interrupts - */ -void external_interrupt(struct pt_regs *regs) -{ - u32 uic_msr; - - /* - * Read masked interrupt status register to determine interrupt source - */ - uic_msr = mfdcr(UIC_BMSR); - -#if (UIC_MAX > 1) - if ((UICB0_UIC1CI & uic_msr) || (UICB0_UIC1NCI & uic_msr)) - uic_interrupt(UIC1_DCR_BASE, 32); -#endif - -#if (UIC_MAX > 2) - if ((UICB0_UIC2CI & uic_msr) || (UICB0_UIC2NCI & uic_msr)) - uic_interrupt(UIC2_DCR_BASE, 64); -#endif - -#if (UIC_MAX > 3) - if ((UICB0_UIC3CI & uic_msr) || (UICB0_UIC3NCI & uic_msr)) - uic_interrupt(UIC3_DCR_BASE, 96); -#endif - -#if defined(CONFIG_440) -#if !defined(CONFIG_440GX) - if (uic_msr & ~(UICB0_ALL)) - uic_interrupt(UIC0_DCR_BASE, 0); -#else - if ((UICB0_UIC0CI & uic_msr) || (UICB0_UIC0NCI & uic_msr)) - uic_interrupt(UIC0_DCR_BASE, 0); -#endif -#else /* CONFIG_440 */ - uic_interrupt(UIC0_DCR_BASE, 0); -#endif /* CONFIG_440 */ - - mtdcr(UIC_BSR, uic_msr); + irq_vecs[vec].count++; + + if (irq_vecs[vec].handler != NULL) { + /* call isr */ + (*irq_vecs[vec].handler) (irq_vecs[vec].arg); + } else { + pic_irq_disable(vec); + printf("Masking bogus interrupt vector %d\n", vec); + } + pic_irq_ack(vec); return; } -/* - * Install and free a interrupt handler. - */ void irq_install_handler(int vec, interrupt_handler_t * handler, void *arg) { - int i; - /* * Print warning when replacing with a different irq vector */ @@ -320,55 +177,19 @@ void irq_install_handler(int vec, interrupt_handler_t * handler, void *arg) irq_vecs[vec].handler = handler; irq_vecs[vec].arg = arg; - i = vec & 0x1f; - if ((vec >= 0) && (vec < 32)) - mtdcr(uicer, mfdcr(uicer) | (0x80000000 >> i)); -#if (UIC_MAX > 1) - else if ((vec >= 32) && (vec < 64)) - mtdcr(uic1er, mfdcr(uic1er) | (0x80000000 >> i)); -#endif -#if (UIC_MAX > 2) - else if ((vec >= 64) && (vec < 96)) - mtdcr(uic2er, mfdcr(uic2er) | (0x80000000 >> i)); -#endif -#if (UIC_MAX > 3) - else if (vec >= 96) - mtdcr(uic3er, mfdcr(uic3er) | (0x80000000 >> i)); -#endif - - debug("Install interrupt for vector %d ==> %p\n", vec, handler); + pic_irq_enable(vec); + return; } -void irq_free_handler (int vec) +void irq_free_handler(int vec) { - int i; - debug("Free interrupt for vector %d ==> %p\n", vec, irq_vecs[vec].handler); - i = vec & 0x1f; - if ((vec >= 0) && (vec < 32)) - mtdcr(uicer, mfdcr(uicer) & ~(0x80000000 >> i)); -#if (UIC_MAX > 1) - else if ((vec >= 32) && (vec < 64)) - mtdcr(uic1er, mfdcr(uic1er) & ~(0x80000000 >> i)); -#endif -#if (UIC_MAX > 2) - else if ((vec >= 64) && (vec < 96)) - mtdcr(uic2er, mfdcr(uic2er) & ~(0x80000000 >> i)); -#endif -#if (UIC_MAX > 3) - else if (vec >= 96) - mtdcr(uic3er, mfdcr(uic3er) & ~(0x80000000 >> i)); -#endif + pic_irq_disable(vec); irq_vecs[vec].handler = NULL; irq_vecs[vec].arg = NULL; -} - -void timer_interrupt_cpu (struct pt_regs *regs) -{ - /* nothing to do here */ return; } @@ -380,7 +201,7 @@ int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) printf ("Interrupt-Information:\n"); printf ("Nr Routine Arg Count\n"); - for (vec = 0; vec < (UIC_MAX * 32); vec++) { + for (vec = 0; vec < IRQ_MAX; vec++) { if (irq_vecs[vec].handler != NULL) { printf ("%02d %08lx %08lx %d\n", vec,