* Patch by Rick Bronson, 16 Mar 2003:

  Add support for Atmel AT91RM9200DK w/NAND

* Patches by Robert Schwebel, 19 Mar 2003:
  - use arm-linux-gcc as default compiler for ARM
  - fix i2c fixup code
  - fix missing baudrate setting
  - added $loadaddr / CFG_LOAD_ADDR support to loadb
  - moved "ignoring trailing characters" _before_ u-boot wants to
    print out diagnostics messages; removes bogus characters at the
    end of transmission

* Patch by John Zhan, 18 Mar 2003:
  Add support for SinoVee Microsystems SC8xx boards

* Patch by Rolf Offermanns, 21 Mar 2003:
  ported the dnp1110 related changes from the current armboot cvs to
  current u-boot cvs. smc91111 does not work. problem marked in
  smc91111.c, grep for "FIXME".

* Patch by Brian Auld, 25 Mar 2003:
  Add support for STM flash chips on ebony board

 * Add PCI support for MPC8250 Boards (PM825 module)

 * Patch by Stefan Roese, 25 Mar 2003:

1 files changed, 236 insertions, 0 deletions

diff --git a/cpu/at91rm9200/interrupts.c b/cpu/at91rm9200/interrupts.c
new file mode 100644
index 0000000..a14ef81
--- /dev/null
+++ b/cpu/at91rm9200/interrupts.c
@@ -0,0 +1,236 @@
+/*
+ * (C) Copyright 2002
+ * Lineo, Inc. <www.lineo.com>
+ * Bernhard Kuhn <bkuhn@lineo.com>
+ *
+ * (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>
+ *
+ * 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 <AT91RM9200.h>
+#include <asm/proc-armv/ptrace.h>
+
+extern void reset_cpu(ulong addr);
+
+/* we always count down the max. */
+#define TIMER_LOAD_VAL 0xffff
+
+/* macro to read the 16 bit timer */
+#define READ_TIMER (tmr->TC_CV)
+AT91PS_TC tmr;
+
+
+
+void enable_interrupts (void)
+{
+    return;
+}
+int disable_interrupts (void)
+{
+    return 0;
+}
+
+
+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();
+}
+
+static ulong timestamp;
+static ulong lastinc;
+
+int interrupt_init (void)
+{
+
+    tmr = AT91C_BASE_TC0;
+
+    /* enables TC1.0 clock */
+    *AT91C_PMC_PCER = 1 << AT91C_ID_TC0;  /* enable clock */
+
+    *AT91C_TCB0_BCR = 0;
+    *AT91C_TCB0_BMR = AT91C_TCB_TC0XC0S_NONE | AT91C_TCB_TC1XC1S_NONE | AT91C_TCB_TC2XC2S_NONE;
+    tmr->TC_CCR = AT91C_TC_CLKDIS;
+    tmr->TC_CMR = AT91C_TC_TIMER_DIV1_CLOCK;  /* set to MCLK/2 */
+
+    tmr->TC_IDR = ~0ul;
+    tmr->TC_RC = TIMER_LOAD_VAL;
+    lastinc = TIMER_LOAD_VAL;
+    tmr->TC_CCR = AT91C_TC_SWTRG | AT91C_TC_CLKEN;
+    timestamp = 0;
+    return (0);
+}
+
+/*
+ * timer without interrupts
+ */
+
+void reset_timer(void)
+{
+    reset_timer_masked();
+}
+
+ulong get_timer (ulong base)
+{
+    return get_timer_masked() - base;
+}
+
+void set_timer (ulong t)
+{
+    timestamp = t;
+}
+
+void udelay(unsigned long usec)
+{
+    udelay_masked(usec);
+}
+
+void reset_timer_masked(void)
+{
+    /* reset time */
+    lastinc = READ_TIMER;
+    timestamp = 0;
+}
+
+ulong get_timer_masked(void)
+{
+    ulong now = READ_TIMER;
+    if (now >= lastinc)
+    {
+        /* normal mode */
+        timestamp += now - lastinc;
+    } else {
+        /* we have an overflow ... */
+        timestamp += now + TIMER_LOAD_VAL - lastinc;
+    }
+    lastinc = now;
+
+    return timestamp;
+}
+
+void udelay_masked(unsigned long usec)
+{
+    ulong tmo;
+
+    tmo = usec / 1000;
+    tmo *= CFG_HZ;
+    tmo /= 1000;
+
+    reset_timer_masked();
+
+    while(get_timer_masked() < tmo);
+      /*NOP*/;
+}
+
+