Initial network cleanup pass.

diff --git a/cpu/arm_cortexa8/pele/timer.c b/cpu/arm_cortexa8/pele/timer.c
new file mode 100644 (file)
index 0000000..0348c6f
--- /dev/null
+++ b/cpu/arm_cortexa8/pele/timer.c
@@ -0,0 +1,155 @@
+/*
+ * (C) Copyright 2003
+ * Texas Instruments <www.ti.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>
+ *
+ * (C) Copyright 2002-2004
+ * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
+ *
+ * (C) Copyright 2004
+ * Philippe Robin, ARM Ltd. <philippe.robin@arm.com>
+ *
+ * (C) Copyright 2008
+ * Guennadi Liakhovetki, DENX Software Engineering, <lg@denx.de>
+ *
+ * And thoroughly mangled into dragonfire form, probably never to escape Xilinx.
+ *
+ * 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 <asm/proc-armv/ptrace.h>
+#include <div64.h>
+
+static ulong timer_load_val;
+
+#define PRESCALER      167
+
+/* read the 16 bit timer */
+static inline ulong read_timer(void)
+{      
+#ifdef NOTNOW_BHILL
+       return xdfttc_readl(COUNT_VALUE);
+#endif
+}
+
+/* Internal tick units */
+/* Last decremneter snapshot */
+static unsigned long lastdec;
+/* Monotonic incrementing timer */
+static unsigned long long timestamp;
+
+int timer_init()
+{
+       reset_timer_masked();
+}
+
+#ifdef NOTNOW_BHILL
+
+int interrupt_init(void)
+{
+       /* complete garbage. */
+       timer_load_val = 0x800000;
+       lastdec = 0x100;
+
+       return 0;
+}
+#endif
+
+/*
+ * timer without interrupts
+ */
+
+/*
+ * 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)
+{
+       ulong now = read_timer();
+
+       if (lastdec >= now) {
+               /* normal mode */
+               timestamp += lastdec - now;
+       } else {
+               /* we have an overflow ... */
+               timestamp += lastdec + timer_load_val - now;
+       }
+       lastdec = now;
+
+       return timestamp;
+}
+
+/*
+ * 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)
+{
+       /* We overrun in 100s */
+       return (ulong)(timer_load_val / 100);
+}
+
+void reset_timer_masked(void)
+{
+       /* reset time */
+       lastdec = read_timer();
+       timestamp = 0;
+}
+
+void reset_timer(void)
+{
+       reset_timer_masked();
+}
+
+ulong get_timer_masked(void)
+{
+       unsigned long long res = get_ticks();
+       do_div (res, (timer_load_val / (100 * CONFIG_SYS_HZ)));
+       return res;
+}
+
+ulong get_timer(ulong base)
+{
+       return get_timer_masked() - base;
+}
+
+void set_timer(ulong t)
+{
+       timestamp = t * (timer_load_val / (100 * CONFIG_SYS_HZ));
+}
+
+void udelay(unsigned long usec)
+{
+       unsigned long long tmp;
+       ulong tmo;
+
+       tmo = (usec + 9) / 10;
+       tmp = get_ticks() + tmo;        /* get current timestamp */
+
+       while (get_ticks() < tmp)/* loop till event */
+                /*NOP*/;
+}