27521ff8e4
platform code, it is expected these will be merged in the future when the ARM code is more complete. Until more boards can be tested only use this with the Raspberry Pi and rrename the functions on the other SoCs. Reviewed by: ian@
148 lines
3.1 KiB
C
148 lines
3.1 KiB
C
/*-
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* Copyright (c) 2013 Thomas Skibo
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* Machine dependent code for Xilinx Zynq-7000 Soc.
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*
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* Reference: Zynq-7000 All Programmable SoC Technical Reference Manual.
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* (v1.4) November 16, 2012. Xilinx doc UG585.
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*/
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#include "opt_global.h"
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#define _ARM32_BUS_DMA_PRIVATE
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <dev/fdt/fdt_common.h>
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#include <machine/bus.h>
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#include <machine/devmap.h>
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#include <machine/machdep.h>
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#include <machine/platform.h>
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#include <arm/xilinx/zy7_reg.h>
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void (*zynq7_cpu_reset)(void);
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vm_offset_t
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platform_lastaddr(void)
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{
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return (arm_devmap_lastaddr());
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}
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void
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platform_probe_and_attach(void)
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{
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}
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void
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platform_gpio_init(void)
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{
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}
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void
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platform_late_init(void)
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{
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}
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/*
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* Set up static device mappings. Not strictly necessary -- simplebus will
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* dynamically establish mappings as needed -- but doing it this way gets us
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* nice efficient 1MB section mappings.
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*/
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int
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platform_devmap_init(void)
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{
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arm_devmap_add_entry(ZYNQ7_PSIO_HWBASE, ZYNQ7_PSIO_SIZE);
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arm_devmap_add_entry(ZYNQ7_PSCTL_HWBASE, ZYNQ7_PSCTL_SIZE);
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return (0);
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}
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struct fdt_fixup_entry fdt_fixup_table[] = {
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{ NULL, NULL }
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};
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static int
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fdt_gic_decode_ic(phandle_t node, pcell_t *intr, int *interrupt, int *trig,
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int *pol)
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{
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if (!fdt_is_compatible(node, "arm,gic"))
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return (ENXIO);
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*interrupt = fdt32_to_cpu(intr[0]);
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*trig = INTR_TRIGGER_CONFORM;
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*pol = INTR_POLARITY_CONFORM;
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return (0);
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}
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fdt_pic_decode_t fdt_pic_table[] = {
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&fdt_gic_decode_ic,
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NULL
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};
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struct arm32_dma_range *
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bus_dma_get_range(void)
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{
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return (NULL);
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}
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int
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bus_dma_get_range_nb(void)
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{
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return (0);
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}
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void
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cpu_reset()
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{
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if (zynq7_cpu_reset != NULL)
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(*zynq7_cpu_reset)();
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printf("cpu_reset: no platform cpu_reset. hanging.\n");
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for (;;)
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;
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}
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