88 lines
2.4 KiB
C
88 lines
2.4 KiB
C
/*-
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* Copyright (c) 2012 Olivier Houchard. 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 ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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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 <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/smp.h>
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#include <machine/smp.h>
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#include <machine/fdt.h>
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#include <machine/intr.h>
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#include <arm/ti/ti_smc.h>
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#include <arm/ti/omap4/omap4_smc.h>
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void mpentry(void);
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void mptramp(void);
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void
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platform_mp_init_secondary(void)
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{
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gic_init_secondary();
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}
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void
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platform_mp_setmaxid(void)
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{
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mp_maxid = 1;
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}
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int
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platform_mp_probe(void)
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{
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mp_ncpus = 2;
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return (1);
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}
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void
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platform_mp_start_ap(void)
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{
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bus_addr_t scu_addr;
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if (bus_space_map(fdtbus_bs_tag, 0x48240000, 0x1000, 0, &scu_addr) != 0)
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panic("Couldn't map the SCU\n");
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/* Enable the SCU */
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*(volatile unsigned int *)scu_addr |= 1;
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//*(volatile unsigned int *)(scu_addr + 0x30) |= 1;
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cpu_idcache_wbinv_all();
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cpu_l2cache_wbinv_all();
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ti_smc0(0x200, 0xfffffdff, MODIFY_AUX_CORE_0);
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ti_smc0(pmap_kextract((vm_offset_t)mpentry), 0, WRITE_AUX_CORE_1);
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armv7_sev();
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bus_space_unmap(fdtbus_bs_tag, scu_addr, 0x1000);
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}
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void
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platform_ipi_send(cpuset_t cpus, u_int ipi)
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{
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pic_ipi_send(cpus, ipi);
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}
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