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@
114 lines
2.8 KiB
C
114 lines
2.8 KiB
C
/*-
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* Copyright (c) 2012 Ganbold Tsagaankhuu <ganbold@freebsd.org>
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* All rights reserved.
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*
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* This code is derived from software written for Brini by Mark Brinicombe
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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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* from: FreeBSD: //depot/projects/arm/src/sys/arm/ti/ti_machdep.c
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*/
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#include "opt_ddb.h"
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#include "opt_platform.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 <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 <dev/fdt/fdt_common.h>
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#include <arm/allwinner/a10_wdog.h>
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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.
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*
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* This covers all the on-chip device with 1MB section mappings, which is good
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* for performance (uses fewer TLB entries for device access).
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*
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* XXX It also covers a block of SRAM and some GPU (mali400) stuff that maybe
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* shouldn't be device-mapped. The original code mapped a 4MB block, but
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* perhaps a 1MB block would be more appropriate.
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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(0x01C00000, 0x00400000); /* 4MB */
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return (0);
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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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a10wd_watchdog_reset();
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printf("Reset failed!\n");
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while (1);
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}
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