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/*-
* Copyright (c) 2019 Justin Hibbits
*
* 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/bus.h>
#include <sys/malloc.h>
#include <sys/smp.h>
#include <machine/intr_machdep.h>
#include <machine/platform.h>
#include <machine/platformvar.h>
#include <dev/ofw/openfirm.h>
#include <dev/ofw/ofw_bus.h>
#include <powerpc/mpc85xx/mpc85xx.h>
#include "platform_if.h"
static void aeon_pbutton_intr(void *_unused);
static void aeon_setup_intr(void *unused);
static int aeon_probe(platform_t);
static int aeon_attach(platform_t);
static platform_method_t aeon_methods[] = {
PLATFORMMETHOD(platform_probe, aeon_probe),
PLATFORMMETHOD(platform_attach, aeon_attach),
PLATFORMMETHOD_END
};
DEFINE_CLASS_1(aeon, aeon_platform, aeon_methods, 0, mpc85xx_platform);
PLATFORM_DEF(aeon_platform);
static bool is_aeon;
static int
aeon_probe(platform_t plat)
{
phandle_t rootnode;
char model[32];
rootnode = OF_finddevice("/");
if (OF_getprop(rootnode, "model", model, sizeof(model)) > 0) {
if (strncmp(model, "varisys,", strlen("varisys,")) == 0)
return (BUS_PROBE_SPECIFIC);
}
return (ENXIO);
}
static int
aeon_attach(platform_t plat)
{
int error;
error = mpc85xx_attach(plat);
if (error)
return (error);
is_aeon = true;
return (0);
}
/* Notify devd(8) that the power button was pressed (IRQ#4 on A-Eon machines). */
static void
aeon_pbutton_intr(void *_unused)
{
devctl_notify("AEON", "power", "press", NULL);
}
/* Manually configure the power button IRQ handler. */
static void
aeon_setup_intr(void *unused)
{
int irq;
if (!is_aeon)
return;
if (bootverbose)
printf("Configuring AmigaOne power button.\n");
irq = 4; /* From TRM, IRQ4 is raised when power button is pressed. */
/* Get us the root PIC. */
irq = MAP_IRQ(0, irq);
powerpc_config_intr(irq, INTR_TRIGGER_EDGE, INTR_POLARITY_LOW);
powerpc_setup_intr("power_button", irq, NULL, aeon_pbutton_intr, NULL,
INTR_TYPE_MISC, NULL, 0);
}
SYSINIT(aeon_setup_intr, SI_SUB_CONFIGURE, SI_ORDER_ANY, aeon_setup_intr, NULL);
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