Blackfin: support console-over-JTAG

[oweals/u-boot.git] / cpu / mpc86xx / interrupts.c

diff --git a/cpu/mpc86xx/interrupts.c b/cpu/mpc86xx/interrupts.c
index 759a30f9f04859071f13831e9cd71fd58b0e5807..c78fc72254b104e5bbcc50bb6f9981b481d2fb99 100644 (file)
--- a/cpu/mpc86xx/interrupts.c
+++ b/cpu/mpc86xx/interrupts.c
@@ -8,8 +8,8 @@
  * (C) Copyright 2003 Motorola Inc. (MPC85xx port)
  * Xianghua Xiao (X.Xiao@motorola.com)
  *
- * (C) Copyright 2004 Freescale Semiconductor. (MPC86xx Port)
- * Jeff Brown (Jeffrey@freescale.com)
+ * (C) Copyright 2004, 2007 Freescale Semiconductor. (MPC86xx Port)
+ * Jeff Brown
  * Srikanth Srinivasan (srikanth.srinivasan@freescale.com)
  *
  * See file CREDITS for list of people who contributed to this
@@ -35,91 +35,46 @@
 #include <mpc86xx.h>
 #include <command.h>
 #include <asm/processor.h>
-#include <ppc_asm.tmpl>
 
-unsigned long decrementer_count;               /* count value for 1e6/HZ microseconds */
-
-
-unsigned long timestamp;
-
-static __inline__ unsigned long get_msr (void)
-{
-       unsigned long msr;
-
-       asm volatile ("mfmsr %0":"=r" (msr):);
-
-       return msr;
-}
-
-static __inline__ void set_msr (unsigned long msr)
-{
-       asm volatile ("mtmsr %0"::"r" (msr));
-}
-
-static __inline__ unsigned long get_dec (void)
-{
-       unsigned long val;
-
-       asm volatile ("mfdec %0":"=r" (val):);
-
-       return val;
-}
-
-
-static __inline__ void set_dec (unsigned long val)
-{
-       if (val)
-               asm volatile ("mtdec %0"::"r" (val));
-}
-
-/* interrupt is not supported yet */
-int interrupt_init_cpu (unsigned *decrementer_count)
+int interrupt_init_cpu(unsigned long *decrementer_count)
 {
-   return (0);
-}
+       volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
+       volatile ccsr_pic_t *pic = &immr->im_pic;
 
+       pic->gcr = MPC86xx_PICGCR_RST;
+       while (pic->gcr & MPC86xx_PICGCR_RST)
+               ;
+       pic->gcr = MPC86xx_PICGCR_MODE;
 
-int interrupt_init (void)
-{
-       int ret;
-
-       /* call cpu specific function from $(CPU)/interrupts.c */
-       ret = interrupt_init_cpu (&decrementer_count);
+       *decrementer_count = get_tbclk() / CONFIG_SYS_HZ;
+       debug("interrupt init: tbclk() = %d MHz, decrementer_count = %ld\n",
+             (get_tbclk() / 1000000),
+             *decrementer_count);
 
-       if (ret)
-               return ret;
+#ifdef CONFIG_INTERRUPTS
 
-        decrementer_count = get_tbclk()/CFG_HZ;
-        debug("interrupt init: tbclk() = %d MHz, decrementer_count = %d\n", (get_tbclk()/1000000), decrementer_count);
-        
-        set_dec (decrementer_count);
+       pic->iivpr1 = 0x810001; /* 50220 enable mcm interrupts */
+       debug("iivpr1@%x = %x\n", &pic->iivpr1, pic->iivpr1);
 
-       set_msr (get_msr () | MSR_EE);
+       pic->iivpr2 = 0x810002; /* 50240 enable ddr interrupts */
+       debug("iivpr2@%x = %x\n", &pic->iivpr2, pic->iivpr2);
 
-        debug("MSR = 0x%08lx, Decrementer reg = 0x%08lx\n", get_msr(), get_dec());
-        
-       return (0);
-}
-
-
-void enable_interrupts (void)
-{
-       set_msr (get_msr () | MSR_EE);
-}
-
-/* returns flag if MSR_EE was set before */
-int disable_interrupts (void)
-{
-       ulong msr = get_msr ();
+       pic->iivpr3 = 0x810003; /* 50260 enable lbc interrupts */
+       debug("iivpr3@%x = %x\n", &pic->iivpr3, pic->iivpr3);
 
-       set_msr (msr & ~MSR_EE);
-       return ((msr & MSR_EE) != 0);
-}
+#if defined(CONFIG_PCI1) || defined(CONFIG_PCIE1)
+       pic->iivpr8 = 0x810008; /* enable pcie1 interrupts */
+       debug("iivpr8@%x = %x\n", &pic->iivpr8, pic->iivpr8);
+#endif
+#if defined(CONFIG_PCI2) || defined(CONFIG_PCIE2)
+       pic->iivpr9 = 0x810009; /* enable pcie2 interrupts */
+       debug("iivpr9@%x = %x\n", &pic->iivpr9, pic->iivpr9);
+#endif
 
+       pic->ctpr = 0;  /* 40080 clear current task priority register */
+#endif
 
-void increment_timestamp(void)
-{
-   timestamp++;
+       return 0;
 }
 
 /*
@@ -127,99 +82,34 @@ void increment_timestamp(void)
  * with interrupts disabled.
  * Trivial implementation - no need to be really accurate.
  */
-void
-timer_interrupt_cpu (struct pt_regs *regs)
+void timer_interrupt_cpu(struct pt_regs *regs)
 {
        /* nothing to do here */
-       return;
-}
-
-
-void timer_interrupt (struct pt_regs *regs)
-{
-   /* call cpu specific function from $(CPU)/interrupts.c */
-   timer_interrupt_cpu (regs);
-        
-   timestamp++;
-
-   ppcDcbf(&timestamp);
-   
-   /* Restore Decrementer Count */
-   set_dec (decrementer_count);
-        
-#if defined(CONFIG_WATCHDOG) || defined (CONFIG_HW_WATCHDOG)
-       if ((timestamp % (CFG_WATCHDOG_FREQ)) == 0)
-               WATCHDOG_RESET ();
-#endif    /* CONFIG_WATCHDOG || CONFIG_HW_WATCHDOG */
-
-#ifdef CONFIG_STATUS_LED
-       status_led_tick (timestamp);
-#endif /* CONFIG_STATUS_LED */
-
-#ifdef CONFIG_SHOW_ACTIVITY
-       board_show_activity (timestamp);
-#endif /* CONFIG_SHOW_ACTIVITY */
-
-
-}
-
-void reset_timer (void)
-{
-       timestamp = 0;
-}
-
-ulong get_timer (ulong base)
-{  
-       return (timestamp - base);
-}
-
-void set_timer (ulong t)
-{
-   timestamp = t;
 }
 
 /*
  * Install and free a interrupt handler. Not implemented yet.
  */
-
-void
-irq_install_handler(int vec, interrupt_handler_t *handler, void *arg)
+void irq_install_handler(int vec, interrupt_handler_t *handler, void *arg)
 {
-       return;
 }
 
-void
-irq_free_handler(int vec)
+void irq_free_handler(int vec)
 {
-       return;
 }
 
-
-
-/*******************************************************************************
- *
+/*
  * irqinfo - print information about PCI devices,not implemented.
- *
  */
-int
-do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
-       printf ("\nInterrupt-unsupported:\n");
-
        return 0;
 }
 
 /*
  * Handle external interrupts
  */
-void
-external_interrupt(struct pt_regs *regs)
+void external_interrupt(struct pt_regs *regs)
 {
        puts("external_interrupt (oops!)\n");
 }
-
-
-
-
-
-