7bf9ab5331
The copies of initarm used on platforms with FDT support were almost identical. The differences were pulled out into separate functions that were called by initarm. This change merges the, now identical, copies of initarm and a few of it's support functions. This is a step towards a common kernel on ARMv6.
143 lines
3.7 KiB
C
143 lines
3.7 KiB
C
/*-
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* Copyright (c) 1994-1998 Mark Brinicombe.
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* Copyright (c) 1994 Brini.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Brini.
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* 4. The name of the company nor the name of the author may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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/at91/kb920x_machdep.c, rev 45
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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/frame.h> /* For trapframe_t, used in <machine/machdep.h> */
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#include <machine/machdep.h>
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#include <machine/pmap.h>
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#include <arm/lpc/lpcreg.h>
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#include <arm/lpc/lpcvar.h>
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#include <dev/fdt/fdt_common.h>
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#include <dev/ic/ns16550.h>
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vm_offset_t
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initarm_lastaddr(void)
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{
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if (fdt_immr_addr(LPC_DEV_BASE) != 0)
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while (1);
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/* Platform-specific initialisation */
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return (fdt_immr_va - ARM_NOCACHE_KVA_SIZE);
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}
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void
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initarm_gpio_init(void)
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{
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/*
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* Set initial values of GPIO output ports
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*/
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platform_gpio_init();
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}
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void
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initarm_late_init(void)
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{
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}
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#define FDT_DEVMAP_MAX (1 + 2 + 1 + 1)
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static struct pmap_devmap fdt_devmap[FDT_DEVMAP_MAX] = {
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{ 0, 0, 0, 0, 0, }
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};
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/*
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* Construct pmap_devmap[] with DT-derived config data.
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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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/*
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* IMMR range.
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*/
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fdt_devmap[0].pd_va = fdt_immr_va;
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fdt_devmap[0].pd_pa = fdt_immr_pa;
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fdt_devmap[0].pd_size = fdt_immr_size;
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fdt_devmap[0].pd_prot = VM_PROT_READ | VM_PROT_WRITE;
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fdt_devmap[0].pd_cache = PTE_NOCACHE;
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pmap_devmap_bootstrap_table = &fdt_devmap[0];
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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(void)
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{
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/* Enable WDT */
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bus_space_write_4(fdtbus_bs_tag,
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LPC_CLKPWR_BASE, LPC_CLKPWR_TIMCLK_CTRL,
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LPC_CLKPWR_TIMCLK_CTRL_WATCHDOG);
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/* Instant assert of RESETOUT_N with pulse length 1ms */
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bus_space_write_4(fdtbus_bs_tag, LPC_WDTIM_BASE, LPC_WDTIM_PULSE, 13000);
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bus_space_write_4(fdtbus_bs_tag, LPC_WDTIM_BASE, LPC_WDTIM_MCTRL, 0x70);
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for (;;);
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}
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