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/*-
* Copyright 2013-2015 John Wehle <john@feith.com>
* 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 "opt_global.h"
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_platform.h"
#define _ARM32_BUS_DMA_PRIVATE
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/devmap.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <machine/bus.h>
#include <machine/cpufunc.h>
#include <machine/intr.h>
#include <machine/machdep.h>
#include <machine/platform.h>
#include <dev/fdt/fdt_common.h>
#include <arm/amlogic/aml8726/aml8726_soc.h>
#include <arm/amlogic/aml8726/aml8726_clkmsr.h>
#if defined(SOCDEV_PA) && defined(SOCDEV_VA)
vm_offset_t aml8726_aobus_kva_base = SOCDEV_VA;
#else
vm_offset_t aml8726_aobus_kva_base;
#endif
static void
aml8726_fixup_busfreq()
{
phandle_t node;
pcell_t freq, prop;
ssize_t len;
/*
* Set the bus-frequency for the SoC simple-bus if it
* needs updating (meaning the current frequency is zero).
*/
if ((freq = aml8726_clkmsr_bus_frequency()) == 0 ||
(node = OF_finddevice("/soc")) == 0 ||
fdt_is_compatible_strict(node, "simple-bus") == 0)
while (1);
freq = cpu_to_fdt32(freq);
len = OF_getencprop(node, "bus-frequency", &prop, sizeof(prop));
if ((len / sizeof(prop)) == 1 && prop == 0)
OF_setprop(node, "bus-frequency", (void *)&freq, sizeof(freq));
}
vm_offset_t
platform_lastaddr(void)
{
return (devmap_lastaddr());
}
void
platform_probe_and_attach(void)
{
}
void
platform_gpio_init(void)
{
/*
* The UART console driver used for debugging early boot code
* needs to know the virtual base address of the aobus. It's
* expected to equal SOCDEV_VA prior to initarm calling setttb
* ... afterwards it needs to be updated due to the new page
* tables.
*
* This means there's a deadzone in initarm between setttb
* and platform_gpio_init during which printf can't be used.
*/
aml8726_aobus_kva_base =
(vm_offset_t)devmap_ptov(0xc8100000, 0x100000);
/*
* The hardware mux used by clkmsr is unique to the SoC (though
* currently clk81 is at a fixed location, however that might
* change in the future).
*/
aml8726_identify_soc();
/*
* My aml8726-m3 development box which identifies the CPU as
* a Cortex A9-r2 rev 4 randomly locks up during boot when WFI
* is used.
*/
switch (aml8726_soc_hw_rev) {
case AML_SOC_HW_REV_M3:
cpufuncs.cf_sleep = (void *)cpufunc_nullop;
break;
default:
break;
}
/*
* This FDT fixup should arguably be called through fdt_fixup_table,
* however currently there's no mechanism to specify a fixup which
* should always be invoked.
*
* It needs to be called prior to the console being initialized which
* is why it's called here, rather than from platform_late_init.
*/
aml8726_fixup_busfreq();
}
void
platform_late_init(void)
{
}
/*
* Construct static devmap entries to map out the core
* peripherals using 1mb section mappings.
*/
int
platform_devmap_init(void)
{
devmap_add_entry(0xc1100000, 0x200000); /* cbus */
devmap_add_entry(0xc4200000, 0x100000); /* pl310 */
devmap_add_entry(0xc4300000, 0x100000); /* periph */
devmap_add_entry(0xc8000000, 0x100000); /* apbbus */
devmap_add_entry(0xc8100000, 0x100000); /* aobus */
devmap_add_entry(0xc9000000, 0x800000); /* ahbbus */
devmap_add_entry(0xd9000000, 0x100000); /* ahb */
devmap_add_entry(0xda000000, 0x100000); /* secbus */
return (0);
}
struct arm32_dma_range *
bus_dma_get_range(void)
{
return (NULL);
}
int
bus_dma_get_range_nb(void)
{
return (0);
}
struct fdt_fixup_entry fdt_fixup_table[] = {
{ NULL, NULL }
};
#ifndef INTRNG
#ifndef DEV_GIC
static int
fdt_pic_decode_ic(phandle_t node, pcell_t *intr, int *interrupt, int *trig,
int *pol)
{
/*
* The single core chips have just an Amlogic PIC.
*/
if (!fdt_is_compatible_strict(node, "amlogic,aml8726-pic"))
return (ENXIO);
*interrupt = fdt32_to_cpu(intr[1]);
*trig = INTR_TRIGGER_EDGE;
*pol = INTR_POLARITY_HIGH;
return (0);
}
#endif
fdt_pic_decode_t fdt_pic_table[] = {
#ifdef DEV_GIC
&gic_decode_fdt,
#else
&fdt_pic_decode_ic,
#endif
NULL
};
#endif /* INTRNG */
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