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authorwdenk <wdenk>2004-08-01 22:48:16 +0000
committerwdenk <wdenk>2004-08-01 22:48:16 +0000
commit281e00a3be453a169d854f824a460359d10f92bb (patch)
tree43dab398f1d6f601bb44df108427f7e0c611d68d /cpu/mc9328/interrupts.c
parentcfca5e604d5692f081cc1a9185ca5dc6dc77599d (diff)
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* Code cleanup
* Patch by Sascha Hauer, 28 Jun: - add generic support for Motorola i.MX architecture - add support for mx1ads, mx1fs2 and scb9328 boards * Patches by Marc Leeman, 23 Jul 2004: - Add define for the PCI/Memory Buffer Configuration Register - corrected comments in cpu/mpc824x/cpu_init.c * Add support for multiple serial interfaces (for example to allow modem dial-in / dial-out)
Diffstat (limited to 'cpu/mc9328/interrupts.c')
-rw-r--r--cpu/mc9328/interrupts.c249
1 files changed, 0 insertions, 249 deletions
diff --git a/cpu/mc9328/interrupts.c b/cpu/mc9328/interrupts.c
deleted file mode 100644
index 2407db6..0000000
--- a/cpu/mc9328/interrupts.c
+++ /dev/null
@@ -1,249 +0,0 @@
-/*
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Marius Groeger <mgroeger@sysgo.de>
- *
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Alex Zuepke <azu@sysgo.de>
- *
- * (C) Copyright 2002
- * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <arm920t.h>
-#include <mc9328.h>
-
-#include <asm/proc-armv/ptrace.h>
-
-extern void reset_cpu(ulong addr);
-int timer_load_val = 0;
-
-#ifdef CONFIG_USE_IRQ
-/* enable IRQ interrupts */
-void enable_interrupts (void)
-{
- unsigned long temp;
- __asm__ __volatile__("mrs %0, cpsr\n"
- "bic %0, %0, #0x80\n"
- "msr cpsr_c, %0"
- : "=r" (temp)
- :
- : "memory");
-}
-
-
-/*
- * disable IRQ/FIQ interrupts
- * returns true if interrupts had been enabled before we disabled them
- */
-int disable_interrupts (void)
-{
- unsigned long old,temp;
- __asm__ __volatile__("mrs %0, cpsr\n"
- "orr %1, %0, #0xc0\n"
- "msr cpsr_c, %1"
- : "=r" (old), "=r" (temp)
- :
- : "memory");
- return (old & 0x80) == 0;
-}
-#else
-void enable_interrupts (void)
-{
- return;
-}
-int disable_interrupts (void)
-{
- return 0;
-}
-#endif
-
-
-void bad_mode (void)
-{
- panic ("Resetting CPU ...\n");
- reset_cpu (0);
-}
-
-void show_regs (struct pt_regs *regs)
-{
- unsigned long flags;
- const char *processor_modes[] = {
- "USER_26", "FIQ_26", "IRQ_26", "SVC_26",
- "UK4_26", "UK5_26", "UK6_26", "UK7_26",
- "UK8_26", "UK9_26", "UK10_26", "UK11_26",
- "UK12_26", "UK13_26", "UK14_26", "UK15_26",
- "USER_32", "FIQ_32", "IRQ_32", "SVC_32",
- "UK4_32", "UK5_32", "UK6_32", "ABT_32",
- "UK8_32", "UK9_32", "UK10_32", "UND_32",
- "UK12_32", "UK13_32", "UK14_32", "SYS_32",
- };
-
- flags = condition_codes (regs);
-
- printf ("pc : [<%08lx>] lr : [<%08lx>]\n"
- "sp : %08lx ip : %08lx fp : %08lx\n",
- instruction_pointer (regs),
- regs->ARM_lr, regs->ARM_sp, regs->ARM_ip, regs->ARM_fp);
- printf ("r10: %08lx r9 : %08lx r8 : %08lx\n",
- regs->ARM_r10, regs->ARM_r9, regs->ARM_r8);
- printf ("r7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n",
- regs->ARM_r7, regs->ARM_r6, regs->ARM_r5, regs->ARM_r4);
- printf ("r3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n",
- regs->ARM_r3, regs->ARM_r2, regs->ARM_r1, regs->ARM_r0);
- printf ("Flags: %c%c%c%c",
- flags & CC_N_BIT ? 'N' : 'n',
- flags & CC_Z_BIT ? 'Z' : 'z',
- flags & CC_C_BIT ? 'C' : 'c', flags & CC_V_BIT ? 'V' : 'v');
- printf (" IRQs %s FIQs %s Mode %s%s\n",
- interrupts_enabled (regs) ? "on" : "off",
- fast_interrupts_enabled (regs) ? "on" : "off",
- processor_modes[processor_mode (regs)],
- thumb_mode (regs) ? " (T)" : "");
-}
-
-void do_undefined_instruction (struct pt_regs *pt_regs)
-{
- printf ("undefined instruction\n");
- show_regs (pt_regs);
- bad_mode ();
-}
-
-void do_software_interrupt (struct pt_regs *pt_regs)
-{
- printf ("software interrupt\n");
- show_regs (pt_regs);
- bad_mode ();
-}
-
-void do_prefetch_abort (struct pt_regs *pt_regs)
-{
- printf ("prefetch abort\n");
- show_regs (pt_regs);
- bad_mode ();
-}
-
-void do_data_abort (struct pt_regs *pt_regs)
-{
- printf ("data abort\n");
- show_regs (pt_regs);
- bad_mode ();
-}
-
-void do_not_used (struct pt_regs *pt_regs)
-{
- printf ("not used\n");
- show_regs (pt_regs);
- bad_mode ();
-}
-
-void do_fiq (struct pt_regs *pt_regs)
-{
- printf ("fast interrupt request\n");
- show_regs (pt_regs);
- bad_mode ();
-}
-
-void do_irq (struct pt_regs *pt_regs)
-{
- printf ("interrupt request\n");
- show_regs (pt_regs);
- bad_mode ();
-}
-
-
-int interrupt_init (void)
-{
-
-/* we don't use interrupt */
- return(0);
-}
-
-/*
- * timer without interrupts
- */
-
-void reset_timer (void)
-{
- reset_timer_masked ();
-}
-
-ulong get_timer (ulong base)
-{
- return get_timer_masked ();
-}
-
-void set_timer (ulong t)
-{
-/* Nop */
-}
-
-void udelay (unsigned long usec)
-{
- udelay_masked (usec);
-}
-
-void reset_timer_masked (void)
-{
- u32 tmp;
- MX1_TCTL1 = 0x09;
- tmp = 0x1f; /* a little delay for timer to reset */
- MX1_TPRER1 = 0x1f;
- MX1_TCTL1 = 0x19;
-}
-
-ulong get_timer_masked (void)
-{
- return MX1_TCN1;
-}
-
-void udelay_masked (unsigned long usec)
-{
- ulong tmo;
-
- tmo = usec / 1000;
- tmo *= CFG_HZ;
- tmo /= 1000;
-
- reset_timer_masked ();
-
- while (get_timer_masked () < tmo);
-}
-
-/*
- * 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) {
- return CFG_HZ;
-}