197 lines
5.0 KiB
C
197 lines
5.0 KiB
C
/*-
|
|
* 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"
|
|
|
|
#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/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);
|
|
}
|
|
|
|
#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 */
|