svn commit: r231822 - in projects/armv6/sys: arm/ti arm/ti/am335x
arm/ti/omap4 boot/fdt/dts conf
Damjan Marion
dmarion at FreeBSD.org
Thu Feb 16 14:42:35 UTC 2012
Author: dmarion
Date: Thu Feb 16 14:42:35 2012
New Revision: 231822
URL: http://svn.freebsd.org/changeset/base/231822
Log:
Initial codedrop for TI AM335x / BeagleBone
Includes:
- AINTC Interrupt controller code
- minimal PRCM code to enable Timers and select clock source
- DMTimer code
- CPU ID code
- Console UART (FDT)
Approved by: cognet (mentor)
Added:
projects/armv6/sys/arm/ti/aintc.c
projects/armv6/sys/arm/ti/am335x/
projects/armv6/sys/arm/ti/am335x/am335x_dmtimer.c
projects/armv6/sys/arm/ti/am335x/am335x_prcm.c
projects/armv6/sys/arm/ti/am335x/am335x_reg.h
projects/armv6/sys/arm/ti/am335x/files.am335x
projects/armv6/sys/arm/ti/am335x/std.am335x
projects/armv6/sys/arm/ti/am335x/std.beaglebone
projects/armv6/sys/arm/ti/std.ti
projects/armv6/sys/boot/fdt/dts/beaglebone.dts
Deleted:
projects/armv6/sys/arm/ti/std.omap
Modified:
projects/armv6/sys/arm/ti/omap4/std.omap4
projects/armv6/sys/arm/ti/ti_cpuid.c
projects/armv6/sys/conf/options.arm
Added: projects/armv6/sys/arm/ti/aintc.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/armv6/sys/arm/ti/aintc.c Thu Feb 16 14:42:35 2012 (r231822)
@@ -0,0 +1,191 @@
+/*-
+ * Copyright (c) 2012 Damjan Marion <dmarion at Freebsd.org>
+ * All rights reserved.
+ *
+ * Based on OMAP3 INTC code by Ben Gray
+ *
+ * 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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/bus.h>
+#include <sys/kernel.h>
+#include <sys/ktr.h>
+#include <sys/module.h>
+#include <sys/rman.h>
+#include <machine/bus.h>
+#include <machine/intr.h>
+
+#include <dev/fdt/fdt_common.h>
+#include <dev/ofw/openfirm.h>
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+
+#define INTC_REVISION 0x00
+#define INTC_SYSCONFIG 0x10
+#define INTC_SYSSTATUS 0x14
+#define INTC_SIR_IRQ 0x40
+#define INTC_CONTROL 0x48
+#define INTC_THRESHOLD 0x68
+#define INTC_MIR_CLEAR(x) (0x88 + ((x) * 0x20))
+#define INTC_MIR_SET(x) (0x8C + ((x) * 0x20))
+#define INTC_ISR_SET(x) (0x90 + ((x) * 0x20))
+#define INTC_ISR_CLEAR(x) (0x94 + ((x) * 0x20))
+
+struct ti_aintc_softc {
+ device_t sc_dev;
+ struct resource * aintc_res[3];
+ bus_space_tag_t aintc_bst;
+ bus_space_handle_t aintc_bsh;
+ uint8_t ver;
+};
+
+static struct resource_spec ti_aintc_spec[] = {
+ { SYS_RES_MEMORY, 0, RF_ACTIVE },
+ { -1, 0 }
+};
+
+
+static struct ti_aintc_softc *ti_aintc_sc = NULL;
+
+#define aintc_read_4(reg) \
+ bus_space_read_4(ti_aintc_sc->aintc_bst, ti_aintc_sc->aintc_bsh, reg)
+#define aintc_write_4(reg, val) \
+ bus_space_write_4(ti_aintc_sc->aintc_bst, ti_aintc_sc->aintc_bsh, reg, val)
+
+
+static int
+ti_aintc_probe(device_t dev)
+{
+ if (!ofw_bus_is_compatible(dev, "ti,aintc"))
+ return (ENXIO);
+ device_set_desc(dev, "TI AINTC Interrupt Controller");
+ return (BUS_PROBE_DEFAULT);
+}
+
+static int
+ti_aintc_attach(device_t dev)
+{
+ struct ti_aintc_softc *sc = device_get_softc(dev);
+ uint32_t x;
+
+ sc->sc_dev = dev;
+
+ if (ti_aintc_sc)
+ return (ENXIO);
+
+ if (bus_alloc_resources(dev, ti_aintc_spec, sc->aintc_res)) {
+ device_printf(dev, "could not allocate resources\n");
+ return (ENXIO);
+ }
+
+ sc->aintc_bst = rman_get_bustag(sc->aintc_res[0]);
+ sc->aintc_bsh = rman_get_bushandle(sc->aintc_res[0]);
+
+ ti_aintc_sc = sc;
+
+ x = aintc_read_4(INTC_REVISION);
+ device_printf(dev, "Revision %u.%u\n",(x >> 4) & 0xF, x & 0xF);
+ return (0);
+}
+
+static device_method_t ti_aintc_methods[] = {
+ DEVMETHOD(device_probe, ti_aintc_probe),
+ DEVMETHOD(device_attach, ti_aintc_attach),
+ { 0, 0 }
+};
+
+static driver_t ti_aintc_driver = {
+ "aintc",
+ ti_aintc_methods,
+ sizeof(struct ti_aintc_softc),
+};
+
+static devclass_t ti_aintc_devclass;
+
+DRIVER_MODULE(aintc, simplebus, ti_aintc_driver, ti_aintc_devclass, 0, 0);
+
+int
+arm_get_next_irq(int last_irq)
+{
+ uint32_t active_irq;
+
+ if (last_irq != -1) {
+ aintc_write_4(INTC_ISR_CLEAR(last_irq >> 5),
+ 1UL << (last_irq & 0x1F));
+ aintc_write_4(INTC_CONTROL,1);
+ }
+
+ /* Get the next active interrupt */
+ active_irq = aintc_read_4(INTC_SIR_IRQ);
+
+ /* Check for spurious interrupt */
+ if ((active_irq & 0xffffff80)) {
+ device_printf(ti_aintc_sc->sc_dev,
+ "Spurious interrupt detected (0x%08x)\n", active_irq);
+ return -1;
+ }
+
+ if (active_irq != last_irq)
+ return active_irq;
+ else
+ return -1;
+}
+
+void
+arm_mask_irq(uintptr_t nb)
+{
+ aintc_write_4(INTC_MIR_SET(nb >> 5), (1UL << (nb & 0x1F)));
+}
+
+void
+arm_unmask_irq(uintptr_t nb)
+{
+ aintc_write_4(INTC_MIR_CLEAR(nb >> 5), (1UL << (nb & 0x1F)));
+}
+
+static int
+fdt_ti_aintc_decode_ic(phandle_t node, pcell_t *intr, int *interrupt, int *trig,
+ int *pol)
+{
+
+ if (!fdt_is_compatible(node, "ti,aintc"))
+ return (ENXIO);
+
+ *interrupt = fdt32_to_cpu(intr[0]);
+ *trig = INTR_TRIGGER_CONFORM;
+ *pol = INTR_POLARITY_CONFORM;
+
+ return (0);
+}
+
+fdt_pic_decode_t fdt_pic_table[] = {
+ &fdt_ti_aintc_decode_ic,
+ NULL
+};
+
+
Added: projects/armv6/sys/arm/ti/am335x/am335x_dmtimer.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/armv6/sys/arm/ti/am335x/am335x_dmtimer.c Thu Feb 16 14:42:35 2012 (r231822)
@@ -0,0 +1,373 @@
+/*-
+ * Copyright (c) 2012 Damjan Marion <dmarion at Freebsd.org>
+ * 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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/bus.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/malloc.h>
+#include <sys/rman.h>
+#include <sys/timeet.h>
+#include <sys/timetc.h>
+#include <sys/watchdog.h>
+#include <machine/bus.h>
+#include <machine/cpu.h>
+#include <machine/frame.h>
+#include <machine/intr.h>
+
+#include <dev/fdt/fdt_common.h>
+#include <dev/ofw/openfirm.h>
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+
+#include <machine/bus.h>
+#include <machine/fdt.h>
+
+#define AM335X_NUM_TIMERS 8
+
+#define DMTIMER_TIDR 0x00 /* Identification Register */
+#define DMTIMER_TIOCP_CFG 0x10 /* Timer OCP Configuration Reg */
+#define DMTIMER_IQR_EOI 0x20 /* Timer IRQ End-Of-Interrupt Reg */
+#define DMTIMER_IRQSTATUS_RAW 0x24 /* Timer IRQSTATUS Raw Reg */
+#define DMTIMER_IRQSTATUS 0x28 /* Timer IRQSTATUS Reg */
+#define DMTIMER_IRQENABLE_SET 0x2c /* Timer IRQSTATUS Set Reg */
+#define DMTIMER_IRQENABLE_CLR 0x30 /* Timer IRQSTATUS Clear Reg */
+#define DMTIMER_IRQWAKEEN 0x34 /* Timer IRQ Wakeup Enable Reg */
+#define DMTIMER_TCLR 0x38 /* Timer Control Register */
+#define DMTIMER_TCRR 0x3C /* Timer Counter Register */
+#define DMTIMER_TLDR 0x40 /* Timer Load Reg */
+#define DMTIMER_TTGR 0x44 /* Timer Trigger Reg */
+#define DMTIMER_TWPS 0x48 /* Timer Write Posted Status Reg */
+#define DMTIMER_TMAR 0x4C /* Timer Match Reg */
+#define DMTIMER_TCAR1 0x50 /* Timer Capture Reg */
+#define DMTIMER_TSICR 0x54 /* Timer Synchr. Interface Control Reg */
+#define DMTIMER_TCAR2 0x48 /* Timer Capture Reg */
+
+
+struct am335x_dmtimer_softc {
+ struct resource * tmr_mem_res[AM335X_NUM_TIMERS];
+ struct resource * tmr_irq_res[AM335X_NUM_TIMERS];
+ uint32_t clkfreq;
+ struct am335x_dmtimer {
+ bus_space_tag_t bst;
+ bus_space_handle_t bsh;
+ struct eventtimer et;
+ } t[AM335X_NUM_TIMERS];
+};
+
+static struct resource_spec am335x_dmtimer_mem_spec[] = {
+ { SYS_RES_MEMORY, 0, RF_ACTIVE },
+ { SYS_RES_MEMORY, 1, RF_ACTIVE },
+ { SYS_RES_MEMORY, 2, RF_ACTIVE },
+ { SYS_RES_MEMORY, 3, RF_ACTIVE },
+ { SYS_RES_MEMORY, 4, RF_ACTIVE },
+ { SYS_RES_MEMORY, 5, RF_ACTIVE },
+ { SYS_RES_MEMORY, 6, RF_ACTIVE },
+ { SYS_RES_MEMORY, 7, RF_ACTIVE },
+ { -1, 0, 0 }
+};
+static struct resource_spec am335x_dmtimer_irq_spec[] = {
+ { SYS_RES_IRQ, 0, RF_ACTIVE },
+ { SYS_RES_IRQ, 1, RF_ACTIVE },
+ { SYS_RES_IRQ, 2, RF_ACTIVE },
+ { SYS_RES_IRQ, 3, RF_ACTIVE },
+ { SYS_RES_IRQ, 4, RF_ACTIVE },
+ { SYS_RES_IRQ, 5, RF_ACTIVE },
+ { SYS_RES_IRQ, 6, RF_ACTIVE },
+ { SYS_RES_IRQ, 7, RF_ACTIVE },
+ { -1, 0, 0 }
+};
+
+static struct am335x_dmtimer *am335x_dmtimer_tc_tmr = NULL;
+
+/* Read/Write macros for Timer used as timecounter */
+#define am335x_dmtimer_tc_read_4(reg) \
+ bus_space_read_4(am335x_dmtimer_tc_tmr->bst, \
+ am335x_dmtimer_tc_tmr->bsh, reg)
+
+#define am335x_dmtimer_tc_write_4(reg, val) \
+ bus_space_write_4(am335x_dmtimer_tc_tmr->bst, \
+ am335x_dmtimer_tc_tmr->bsh, reg, val)
+
+/* Read/Write macros for Timer used as eventtimer */
+#define am335x_dmtimer_et_read_4(reg) \
+ bus_space_read_4(tmr->bst, tmr->bsh, reg)
+
+#define am335x_dmtimer_et_write_4(reg, val) \
+ bus_space_write_4(tmr->bst, tmr->bsh, reg, val)
+
+static unsigned am335x_dmtimer_tc_get_timecount(struct timecounter *);
+
+static struct timecounter am335x_dmtimer_tc = {
+ .tc_name = "AM335x Timecouter",
+ .tc_get_timecount = am335x_dmtimer_tc_get_timecount,
+ .tc_poll_pps = NULL,
+ .tc_counter_mask = ~0u,
+ .tc_frequency = 0,
+ .tc_quality = 1000,
+};
+
+static unsigned
+am335x_dmtimer_tc_get_timecount(struct timecounter *tc)
+{
+ return am335x_dmtimer_tc_read_4(DMTIMER_TCRR);
+}
+
+static int
+am335x_dmtimer_start(struct eventtimer *et, struct bintime *first,
+ struct bintime *period)
+{
+ struct am335x_dmtimer *tmr = (struct am335x_dmtimer *)et->et_priv;
+ uint32_t load, count;
+ uint32_t tclr = 0;
+
+ if (period != NULL) {
+ load = (et->et_frequency * (period->frac >> 32)) >> 32;
+ if (period->sec > 0)
+ load += et->et_frequency * period->sec;
+ tclr |= 2; /* autoreload bit */
+ panic("periodic timer not implemented\n");
+ } else {
+ load = 0;
+ }
+
+ if (first != NULL) {
+ count = (tmr->et.et_frequency * (first->frac >> 32)) >> 32;
+ if (first->sec != 0)
+ count += tmr->et.et_frequency * first->sec;
+ } else {
+ count = load;
+ }
+
+ /* Reset Timer */
+ am335x_dmtimer_et_write_4(DMTIMER_TSICR, 2);
+
+ /* Wait for reset to complete */
+ while (am335x_dmtimer_et_read_4(DMTIMER_TIOCP_CFG) & 1);
+
+ /* set load value */
+ am335x_dmtimer_et_write_4(DMTIMER_TLDR, 0xFFFFFFFE - load);
+
+ /* set counter value */
+ am335x_dmtimer_et_write_4(DMTIMER_TCRR, 0xFFFFFFFE - count);
+
+ /* enable overflow interrupt */
+ am335x_dmtimer_et_write_4(DMTIMER_IRQENABLE_SET, 2);
+
+ /* start timer(ST) */
+ tclr |= 1;
+ am335x_dmtimer_et_write_4(DMTIMER_TCLR, tclr);
+
+ return (0);
+}
+
+static int
+am335x_dmtimer_stop(struct eventtimer *et)
+{
+ struct am335x_dmtimer *tmr = (struct am335x_dmtimer *)et->et_priv;
+
+ /* Disable all interrupts */
+ am335x_dmtimer_et_write_4(DMTIMER_IRQENABLE_CLR, 7);
+
+ /* Stop Timer */
+ am335x_dmtimer_et_write_4(DMTIMER_TCLR, 0);
+
+ return (0);
+}
+
+static int
+am335x_dmtimer_intr(void *arg)
+{
+ struct am335x_dmtimer *tmr = (struct am335x_dmtimer *)arg;
+
+ /* Ack interrupt */
+ am335x_dmtimer_et_write_4(DMTIMER_IRQSTATUS, 7);
+ if (tmr->et.et_active)
+ tmr->et.et_event_cb(&tmr->et, tmr->et.et_arg);
+
+ return (FILTER_HANDLED);
+}
+
+static int
+am335x_dmtimer_probe(device_t dev)
+{
+ struct am335x_dmtimer_softc *sc;
+ sc = (struct am335x_dmtimer_softc *)device_get_softc(dev);
+
+ if (ofw_bus_is_compatible(dev, "ti,am335x-dmtimer")) {
+ device_set_desc(dev, "AM335x DMTimer");
+ return(BUS_PROBE_DEFAULT);
+ }
+
+ return (ENXIO);
+}
+
+static int
+am335x_dmtimer_attach(device_t dev)
+{
+ struct am335x_dmtimer_softc *sc = device_get_softc(dev);
+ phandle_t node;
+ pcell_t clock;
+ void *ihl;
+ int err;
+ int i;
+
+ if (am335x_dmtimer_tc_tmr != NULL)
+ return (EINVAL);
+
+ /* Get the base clock frequency */
+ node = ofw_bus_get_node(dev);
+ if ((OF_getprop(node, "clock-frequency", &clock, sizeof(clock))) <= 0) {
+ device_printf(dev, "missing clock-frequency attribute in FDT\n");
+ return (ENXIO);
+ }
+ sc->clkfreq = fdt32_to_cpu(clock);
+
+ /* Request the memory resources */
+ err = bus_alloc_resources(dev, am335x_dmtimer_mem_spec,
+ sc->tmr_mem_res);
+ if (err) {
+ device_printf(dev, "Error: could not allocate mem resources\n");
+ return (ENXIO);
+ }
+
+ /* Request the IRQ resources */
+ err = bus_alloc_resources(dev, am335x_dmtimer_irq_spec,
+ sc->tmr_irq_res);
+ if (err) {
+ device_printf(dev, "Error: could not allocate irq resources\n");
+ return (ENXIO);
+ }
+
+ for(i=0;i<AM335X_NUM_TIMERS;i++) {
+ sc->t[i].bst = rman_get_bustag(sc->tmr_mem_res[i]);
+ sc->t[i].bsh = rman_get_bushandle(sc->tmr_mem_res[i]);
+ }
+
+ /* Take DMTimer2 for TC */
+ am335x_dmtimer_tc_tmr = &sc->t[2];
+
+ /* Reset Timer */
+ am335x_dmtimer_tc_write_4(DMTIMER_TSICR, 2);
+
+ /* Wait for reset to complete */
+ while (am335x_dmtimer_tc_read_4(DMTIMER_TIOCP_CFG) & 1);
+
+ /* set load value */
+ am335x_dmtimer_tc_write_4(DMTIMER_TLDR, 0);
+
+ /* set counter value */
+ am335x_dmtimer_tc_write_4(DMTIMER_TCRR, 0);
+
+ /* Set Timer autoreload(AR) and start timer(ST) */
+ am335x_dmtimer_tc_write_4(DMTIMER_TCLR, 3);
+
+ am335x_dmtimer_tc.tc_frequency = sc->clkfreq;
+ tc_init(&am335x_dmtimer_tc);
+
+ /* Setup and enable the timer */
+ if (bus_setup_intr(dev, sc->tmr_irq_res[3], INTR_TYPE_CLK,
+ am335x_dmtimer_intr, NULL, &sc->t[3], &ihl) != 0) {
+ bus_release_resources(dev, am335x_dmtimer_irq_spec,
+ sc->tmr_irq_res);
+ device_printf(dev, "Unable to setup the clock irq handler.\n");
+ return (ENXIO);
+ }
+
+ sc->t[3].et.et_name = "AM335x Eventtimer0";
+ sc->t[3].et.et_flags = ET_FLAGS_PERIODIC | ET_FLAGS_ONESHOT;
+ sc->t[3].et.et_quality = 1000;
+ sc->t[3].et.et_frequency = sc->clkfreq;
+ sc->t[3].et.et_min_period.sec = 0;
+ sc->t[3].et.et_min_period.frac =
+ ((0x00000002LLU << 32) / sc->t[3].et.et_frequency) << 32;
+ sc->t[3].et.et_max_period.sec = 0xfffffff0U / sc->t[3].et.et_frequency;
+ sc->t[3].et.et_max_period.frac =
+ ((0xfffffffeLLU << 32) / sc->t[3].et.et_frequency) << 32;
+ sc->t[3].et.et_start = am335x_dmtimer_start;
+ sc->t[3].et.et_stop = am335x_dmtimer_stop;
+ sc->t[3].et.et_priv = &sc->t[3];
+ et_register(&sc->t[3].et);
+
+ return (0);
+}
+
+static device_method_t am335x_dmtimer_methods[] = {
+ DEVMETHOD(device_probe, am335x_dmtimer_probe),
+ DEVMETHOD(device_attach, am335x_dmtimer_attach),
+ { 0, 0 }
+};
+
+static driver_t am335x_dmtimer_driver = {
+ "am335x-dmtimer",
+ am335x_dmtimer_methods,
+ sizeof(struct am335x_dmtimer_softc),
+};
+
+static devclass_t am335x_dmtimer_devclass;
+
+DRIVER_MODULE(am335x_dmtimer, simplebus, am335x_dmtimer_driver, am335x_dmtimer_devclass, 0, 0);
+
+void
+cpu_initclocks(void)
+{
+ cpu_initclocks_bsp();
+}
+
+void
+DELAY(int usec)
+{
+ int32_t counts;
+ uint32_t first, last;
+
+ if (am335x_dmtimer_tc_tmr == NULL) {
+ for (; usec > 0; usec--)
+ for (counts = 200; counts > 0; counts--)
+ /* Prevent gcc from optimizing out the loop */
+ cpufunc_nullop();
+ return;
+ }
+
+ /* Get the number of times to count */
+ counts = usec * ((am335x_dmtimer_tc.tc_frequency / 1000000) + 1);;
+
+ first = am335x_dmtimer_tc_read_4(DMTIMER_TCRR);
+
+ while (counts > 0) {
+ last = am335x_dmtimer_tc_read_4(DMTIMER_TCRR);
+ if (last>first) {
+ counts -= (int32_t)(last - first);
+ } else {
+ counts -= (int32_t)((0xFFFFFFFF - first) + last);
+ }
+ first = last;
+ }
+}
+
Added: projects/armv6/sys/arm/ti/am335x/am335x_prcm.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/armv6/sys/arm/ti/am335x/am335x_prcm.c Thu Feb 16 14:42:35 2012 (r231822)
@@ -0,0 +1,156 @@
+/*-
+ * Copyright (c) 2012 Damjan Marion <dmarion at Freebsd.org>
+ * 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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/bus.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/malloc.h>
+#include <sys/rman.h>
+#include <sys/timeet.h>
+#include <sys/timetc.h>
+#include <sys/watchdog.h>
+#include <machine/bus.h>
+#include <machine/cpu.h>
+#include <machine/frame.h>
+#include <machine/intr.h>
+
+#include <dev/fdt/fdt_common.h>
+#include <dev/ofw/openfirm.h>
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+
+#include <machine/bus.h>
+#include <machine/fdt.h>
+
+#define CM_PER 0
+#define CM_PER_L4LS_CLKSTCTRL (CM_PER + 0x00)
+#define CM_PER_TIMER7_CLKCTRL (CM_PER + 0x7C)
+#define CM_PER_TIMER2_CLKCTRL (CM_PER + 0x80)
+#define CM_PER_TIMER3_CLKCTRL (CM_PER + 0x84)
+#define CM_PER_TIMER4_CLKCTRL (CM_PER + 0x88)
+#define CM_PER_TIMER5_CLKCTRL (CM_PER + 0xEC)
+#define CM_PER_TIMER6_CLKCTRL (CM_PER + 0xF0)
+
+#define CM_DPLL 0x500
+#define CLKSEL_TIMER7_CLK (CM_DPLL + 0x04)
+#define CLKSEL_TIMER2_CLK (CM_DPLL + 0x08)
+#define CLKSEL_TIMER3_CLK (CM_DPLL + 0x0C)
+#define CLKSEL_TIMER4_CLK (CM_DPLL + 0x10)
+#define CLKSEL_TIMER5_CLK (CM_DPLL + 0x18)
+#define CLKSEL_TIMER6_CLK (CM_DPLL + 0x1C)
+
+struct am335x_prcm_softc {
+ struct resource * res[2];
+ bus_space_tag_t bst;
+ bus_space_handle_t bsh;
+};
+
+static struct resource_spec am335x_prcm_spec[] = {
+ { SYS_RES_MEMORY, 0, RF_ACTIVE },
+ { -1, 0 }
+};
+
+static struct am335x_prcm_softc *am335x_prcm_sc = NULL;
+
+/* Read/Write macros */
+#define prcm_read_4(reg) \
+ bus_space_read_4(am335x_prcm_sc->bst, am335x_prcm_sc->bsh, reg)
+#define prcm_write_4(reg, val) \
+ bus_space_write_4(am335x_prcm_sc->bst, am335x_prcm_sc->bsh, reg, val)
+
+static int
+am335x_prcm_probe(device_t dev)
+{
+ struct am335x_prcm_softc *sc;
+ sc = (struct am335x_prcm_softc *)device_get_softc(dev);
+
+ if (ofw_bus_is_compatible(dev, "am335x,prcm")) {
+ device_set_desc(dev, "AM335x PRCM");
+ return(BUS_PROBE_DEFAULT);
+ }
+
+ return (ENXIO);
+}
+
+static int
+am335x_prcm_attach(device_t dev)
+{
+ struct am335x_prcm_softc *sc = device_get_softc(dev);
+
+ if (am335x_prcm_sc)
+ return (ENXIO);
+
+ if (bus_alloc_resources(dev, am335x_prcm_spec, sc->res)) {
+ device_printf(dev, "could not allocate resources\n");
+ return (ENXIO);
+ }
+
+ sc->bst = rman_get_bustag(sc->res[0]);
+ sc->bsh = rman_get_bushandle(sc->res[0]);
+
+ am335x_prcm_sc = sc;
+
+ /* Select CLK_M_OSC clock for Timer 2 */
+ prcm_write_4(CLKSEL_TIMER2_CLK,1);
+ while ((prcm_read_4(CLKSEL_TIMER2_CLK) & 0x1) != 1);
+
+ /* Enable Timer 2 Module */
+ prcm_write_4(CM_PER_TIMER2_CLKCTRL, 2);
+ while ((prcm_read_4(CM_PER_TIMER2_CLKCTRL) & 0x3) != 2);
+
+ /* Select CLK_M_OSC clock for Timer 3 */
+ prcm_write_4(CLKSEL_TIMER3_CLK,1);
+ while ((prcm_read_4(CLKSEL_TIMER3_CLK) & 0x1) != 1);
+
+ /* Enable Timer 3 Module */
+ prcm_write_4(CM_PER_TIMER3_CLKCTRL, 2);
+ while ((prcm_read_4(CM_PER_TIMER3_CLKCTRL) & 0x3) != 2);
+
+ return (0);
+}
+
+static device_method_t am335x_prcm_methods[] = {
+ DEVMETHOD(device_probe, am335x_prcm_probe),
+ DEVMETHOD(device_attach, am335x_prcm_attach),
+ { 0, 0 }
+};
+
+static driver_t am335x_prcm_driver = {
+ "am335x-prcm",
+ am335x_prcm_methods,
+ sizeof(struct am335x_prcm_softc),
+};
+
+static devclass_t am335x_prcm_devclass;
+
+DRIVER_MODULE(am335x_prcm, simplebus, am335x_prcm_driver,
+ am335x_prcm_devclass, 0, 0);
+
Added: projects/armv6/sys/arm/ti/am335x/am335x_reg.h
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/armv6/sys/arm/ti/am335x/am335x_reg.h Thu Feb 16 14:42:35 2012 (r231822)
@@ -0,0 +1,39 @@
+/*-
+ * Copyright (c) 2012 Damjan Marion <dmarion at Freebsd.org>
+ * 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
+ */
+
+#ifndef _AM335X_REG_H_
+#define _AM335X_REG_H_
+
+#define AM335X_L4_WKUP_BASE 0x44C00000
+#define AM335X_L4_WKUP_SIZE 0x400000
+
+#define AM335X_CONTROL_BASE AM335X_L4_WKUP_BASE + 0x210000
+#define AM335X_CONTROL_SIZE 0x2000
+#define AM335X_CONTROL_DEVICE_ID 0x0600
+#define AM335X_CONTROL_DEV_FEATURE 0x0604
+
+#endif
+
Added: projects/armv6/sys/arm/ti/am335x/files.am335x
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/armv6/sys/arm/ti/am335x/files.am335x Thu Feb 16 14:42:35 2012 (r231822)
@@ -0,0 +1,20 @@
+#$FreeBSD$
+
+kern/kern_clocksource.c standard
+
+arm/arm/bus_space_generic.c standard
+arm/arm/bus_space_asm_generic.S standard
+arm/arm/cpufunc_asm_armv5.S standard
+arm/arm/cpufunc_asm_arm10.S standard
+arm/arm/cpufunc_asm_arm11.S standard
+arm/arm/cpufunc_asm_armv7.S standard
+arm/arm/irq_dispatch.S standard
+
+arm/ti/ti_machdep.c standard
+arm/ti/aintc.c standard
+
+arm/ti/am335x/am335x_prcm.c standard
+arm/ti/am335x/am335x_dmtimer.c standard
+arm/ti/am335x/if_cpsw.c standard
+
+dev/uart/uart_dev_ns8250.c optional uart
Added: projects/armv6/sys/arm/ti/am335x/std.am335x
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/armv6/sys/arm/ti/am335x/std.am335x Thu Feb 16 14:42:35 2012 (r231822)
@@ -0,0 +1,21 @@
+# AM335x generic configuration
+#$FreeBSD$
+files "../ti/am335x/files.am335x"
+include "../ti/std.ti"
+makeoption ARM_LITTLE_ENDIAN
+
+# Physical memory starts at 0x80000000. We assume images are loaded at
+# 0x80200000, e.g. from u-boot with 'fatload mmc 0 0x80200000 kernel.bin'
+#
+#
+options PHYSADDR=0x80000000
+options KERNPHYSADDR=0x80200000
+makeoptions KERNPHYSADDR=0x80200000
+options KERNVIRTADDR=0xc0200000 # Used in ldscript.arm
+makeoptions KERNVIRTADDR=0xc0200000
+
+options STARTUP_PAGETABLE_ADDR=0x80000000
+
+options SOC_TI_AM335X
+
+options ARM_L2_PIPT
Added: projects/armv6/sys/arm/ti/am335x/std.beaglebone
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/armv6/sys/arm/ti/am335x/std.beaglebone Thu Feb 16 14:42:35 2012 (r231822)
@@ -0,0 +1,3 @@
+# $FreeBSD$
+
+include "../ti/am335x/std.am335x"
Modified: projects/armv6/sys/arm/ti/omap4/std.omap4
==============================================================================
--- projects/armv6/sys/arm/ti/omap4/std.omap4 Thu Feb 16 14:08:14 2012 (r231821)
+++ projects/armv6/sys/arm/ti/omap4/std.omap4 Thu Feb 16 14:42:35 2012 (r231822)
@@ -1,7 +1,7 @@
# Omap4430 generic configuration
#$FreeBSD$
files "../ti/omap4/files.omap4"
-include "../ti/std.omap"
+include "../ti/std.ti"
makeoption ARM_LITTLE_ENDIAN
# Physical memory starts at 0x80000000. We assume images are loaded at
Added: projects/armv6/sys/arm/ti/std.ti
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/armv6/sys/arm/ti/std.ti Thu Feb 16 14:42:35 2012 (r231822)
@@ -0,0 +1,6 @@
+# $FreeBSD$
+
+# This should be armv7-a but current gcc doesn't support it
+# makeoptions CONF_CFLAGS=-march=armv6
+
+cpu CPU_CORTEXA
Modified: projects/armv6/sys/arm/ti/ti_cpuid.c
==============================================================================
--- projects/armv6/sys/arm/ti/ti_cpuid.c Thu Feb 16 14:08:14 2012 (r231821)
+++ projects/armv6/sys/arm/ti/ti_cpuid.c Thu Feb 16 14:42:35 2012 (r231822)
@@ -51,9 +51,7 @@ __FBSDID("$FreeBSD$");
#include <arm/ti/omap4/omap4_reg.h>
#include <arm/ti/omap3/omap3_reg.h>
-#ifdef notyet
#include <arm/ti/am335x/am335x_reg.h>
-#endif
#define OMAP4_STD_FUSE_DIE_ID_0 0x2200
#define OMAP4_ID_CODE 0x2204
@@ -216,7 +214,6 @@ omap3_get_revision(void)
OMAP_REV_MINOR(chip_revision));
}
-#ifdef notyet
static void
am335x_get_revision(void)
{
@@ -255,7 +252,6 @@ am335x_get_revision(void)
printf("Texas Instruments AM335%c Processor, Revision ES1.%u\n",
cpu_last_char, AM335X_DEVREV(chip_revision));
}
-#endif
/**
* ti_cpu_ident - attempts to identify the chip we are running on
@@ -278,11 +274,9 @@ ti_cpu_ident(void *dummy)
case CHIP_OMAP_4:
omap4_get_revision();
break;
-#ifdef notyet
case CHIP_AM335X:
am335x_get_revision();
break;
-#endif
default:
panic("Unknown chip type, fixme!\n");
}
Added: projects/armv6/sys/boot/fdt/dts/beaglebone.dts
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/armv6/sys/boot/fdt/dts/beaglebone.dts Thu Feb 16 14:42:35 2012 (r231822)
@@ -0,0 +1,118 @@
+/*-
+ * Copyright (c) 2012 Damjan Marion <dmarion at Freebsd.org>
+ * 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
+ */
+
+/dts-v1/;
+
+/ {
+ model = "beaglebone";
+ compatible = "beaglebone", "ti,am335x";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ interrupt-parent = <&AINTC>;
+
+ aliases {
+ soc = &SOC;
+ uart0 = &uart0;
+ };
+
+ memory {
+ device_type = "memory";
+ reg = < 0x80000000 0x10000000 >; /* 256MB RAM */
+ };
+
+ SOC: am335x {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "simple-bus";
+ ranges;
+ bus-frequency = <0>;
+
+ AINTC: interrupt-controller at 48200000 {
+ compatible = "ti,aintc";
+ interrupt-controller;
+ #address-cells = <0>;
+ #interrupt-cells = <1>;
+ reg = < 0x48200000 0x1000 >;
+ };
+
+ prcm at 44E00000 {
+ compatible = "am335x,prcm";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = < 0x44E00000 0x1300 >;
+ };
+
+ dmtimers at 44E05000 {
+ compatible = "ti,am335x-dmtimer";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = < 0x44E05000 0x1000
+ 0x44E31000 0x1000
+ 0x48040000 0x1000
+ 0x48042000 0x1000
+ 0x48044000 0x1000
+ 0x48046000 0x1000
+ 0x48048000 0x1000
+ 0x4804A000 0x1000 >;
+ interrupts = < 66 67 68 69 92 93 94 95 >;
+ interrupt-parent = <&AINTC>;
+ clock-frequency = < 24000000 >;
+ };
+
+ uart0: serial at 44E09000 {
+ compatible = "ns16550";
+ reg = <0x44E09000 0x1000>;
+ reg-shift = <2>;
+ interrupts = < 72 >;
+ interrupt-parent = <&AINTC>;
+ clock-frequency = < 48000000 >; /* FIXME */
+ };
+
+ enet0: ethernet at 4A100000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "ti,cpsw";
+ reg = <0x4A100000 0x2000>;
+ interrupts = <40 41 42 43>;
+ interrupt-parent = <&AINTC>;
+ phy-handle = <&phy0>;
+ mdio at 0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "ti,cpsw-mdio";
+ phy0: ethernet-phy at 0 {
+ reg = <0x0>;
+ };
+ };
+ };
+ };
+
*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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