summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorimp <imp@FreeBSD.org>2006-02-17 22:23:36 +0000
committerimp <imp@FreeBSD.org>2006-02-17 22:23:36 +0000
commita2ac42b55a04d1ecedbc0b89999330e65d5c2368 (patch)
tree6e3a7913ec75bbc7df9c5e09f22bfb14b14c54ff
parentd0ed011fe8d1a5e4bb7e83fe89968dbc94ede197 (diff)
downloadFreeBSD-src-a2ac42b55a04d1ecedbc0b89999330e65d5c2368.zip
FreeBSD-src-a2ac42b55a04d1ecedbc0b89999330e65d5c2368.tar.gz
This file was obsolete when committed. Catchup and delete it.
-rw-r--r--sys/arm/at91/at91st.c215
1 files changed, 0 insertions, 215 deletions
diff --git a/sys/arm/at91/at91st.c b/sys/arm/at91/at91st.c
deleted file mode 100644
index a744222..0000000
--- a/sys/arm/at91/at91st.c
+++ /dev/null
@@ -1,215 +0,0 @@
-/*-
- * Copyright (c) 2005 Olivier Houchard. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/module.h>
-#include <sys/time.h>
-#include <sys/bus.h>
-#include <sys/resource.h>
-#include <sys/rman.h>
-#include <sys/timetc.h>
-
-#include <machine/bus.h>
-#include <machine/cpu.h>
-#include <machine/cpufunc.h>
-#include <machine/resource.h>
-#include <machine/frame.h>
-#include <machine/intr.h>
-#include <arm/at91/at91rm92reg.h>
-#include <arm/at91/at91streg.h>
-#include <arm/at91/at91var.h>
-
-static struct at91st_softc {
- bus_space_tag_t sc_st;
- bus_space_handle_t sc_sh;
- device_t dev;
-} *timer_softc;
-
-#define RD4(off) \
- bus_space_read_4(timer_softc->sc_st, timer_softc->sc_sh, (off))
-#define WR4(off, val) \
- bus_space_write_4(timer_softc->sc_st, timer_softc->sc_sh, (off), (val))
-
-static inline int
-st_crtr(void)
-{
- int cur1, cur2;
- do {
- cur1 = RD4(ST_CRTR);
- cur2 = RD4(ST_CRTR);
- } while (cur1 != cur2);
- return (cur1);
-}
-
-static unsigned at91st_get_timecount(struct timecounter *tc);
-
-static struct timecounter at91st_timecounter = {
- at91st_get_timecount, /* get_timecount */
- NULL, /* no poll_pps */
- 0xfffffu, /* counter_mask */
- 32768, /* frequency */
- "AT91RM9200 timer", /* name */
- 0 /* quality */
-};
-
-static int
-at91st_probe(device_t dev)
-{
-
- device_set_desc(dev, "ST");
- return (0);
-}
-
-static int
-at91st_attach(device_t dev)
-{
- struct at91_softc *sc = device_get_softc(device_get_parent(dev));
-
- timer_softc = device_get_softc(dev);
- timer_softc->sc_st = sc->sc_st;
- timer_softc->dev = dev;
- if (bus_space_subregion(sc->sc_st, sc->sc_sh, AT91RM92_ST_BASE,
- AT91RM92_ST_SIZE, &timer_softc->sc_sh) != 0)
- panic("couldn't subregion timer registers");
- /*
- * Real time counter increments every clock cycle, need to set before
- * initializing clocks so that DELAY works.
- */
- WR4(ST_RTMR, 1);
-
- return (0);
-}
-
-static device_method_t at91st_methods[] = {
- DEVMETHOD(device_probe, at91st_probe),
- DEVMETHOD(device_attach, at91st_attach),
- {0, 0},
-};
-
-static driver_t at91st_driver = {
- "at91_st",
- at91st_methods,
- sizeof(struct at91st_softc),
-};
-static devclass_t at91st_devclass;
-
-DRIVER_MODULE(at91_st, atmelarm, at91st_driver, at91st_devclass, 0, 0);
-
-static unsigned
-at91st_get_timecount(struct timecounter *tc)
-{
- return (st_crtr());
-}
-
-static void
-clock_intr(void *arg)
-{
- struct trapframe *fp = arg;
-
- /* The interrupt is shared, so we have to make sure it's for us. */
- if (RD4(ST_SR) & ST_SR_PITS)
- hardclock(TRAPF_USERMODE(fp), TRAPF_PC(fp));
-}
-
-void
-cpu_initclocks(void)
-{
- int rel_value;
- struct resource *irq;
- int rid = 0;
- void *ih;
- device_t dev = timer_softc->dev;
-
- if (32768 % hz) {
- printf("Cannot get %d Hz clock; using 128Hz\n", hz);
- hz = 128;
- }
- rel_value = 32768 / hz;
- /* Disable all interrupts. */
- WR4(ST_IDR, 0xffffffff);
- /* The system timer shares the system irq (1) */
- irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 1, 1, 1,
- RF_ACTIVE | RF_SHAREABLE);
- if (!irq)
- panic("Unable to allocate irq for the system timer");
- else
- bus_setup_intr(dev, irq, INTR_TYPE_CLK | INTR_FAST,
- clock_intr, NULL, &ih);
-
- WR4(ST_PIMR, rel_value);
-
- /* Enable PITS interrupts. */
- WR4(ST_IER, ST_SR_PITS);
- tc_init(&at91st_timecounter);
-}
-
-void
-DELAY(int n)
-{
- uint32_t start, end, cur;
-
- start = st_crtr();
- n = (n * 1000000) / 32768;
- if (n <= 0)
- n = 1;
- end = (start + n) & ST_CRTR_MASK;
- cur = start;
- if (start > end) {
- while (cur >= start || cur < end)
- cur = st_crtr();
- } else {
- while (cur < end)
- cur = st_crtr();
- }
-}
-
-void
-cpu_reset(void)
-{
- /*
- * Reset the CPU by programmig the watchdog timer to reset the
- * CPU after 128 'slow' clocks, or about ~4ms. Loop until
- * the reset happens for safety.
- */
- WR4(ST_WDMR, ST_WDMR_RSTEN | 2);
- WR4(ST_CR, ST_CR_WDRST);
- while (1)
- continue;
-}
-
-void
-cpu_startprofclock(void)
-{
-}
-
-void
-cpu_stopprofclock(void)
-{
-}
-
OpenPOWER on IntegriCloud