af3dc4a7ca
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
137 lines
3.7 KiB
C
137 lines
3.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2013-2014 Ruslan Bukin <br@bsdpad.com>
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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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#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 <vm/vm.h>
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#include <vm/pmap.h>
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#include <machine/cpu.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 <machine/platformvar.h>
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#include <arm/samsung/exynos/exynos5_mp.h>
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#define EXYNOS_CHIPID 0x10000000
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#define EXYNOS5250_SOC_ID 0x43520000
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#define EXYNOS5420_SOC_ID 0xE5420000
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#define EXYNOS5_SOC_ID_MASK 0xFFFFF000
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#define EXYNOS_SYSRAM 0x02020000
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#define EXYNOS5420_SYSRAM_NS (EXYNOS_SYSRAM + 0x53000 + 0x1c)
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#define EXYNOS_PMU_BASE 0x10040000
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#define CORE_CONFIG(n) (0x2000 + (0x80 * (n)))
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#define CORE_STATUS(n) (CORE_CONFIG(n) + 0x4)
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#define CORE_PWR_EN 0x3
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static int
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exynos_get_soc_id(void)
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{
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bus_addr_t chipid;
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int reg;
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if (bus_space_map(fdtbus_bs_tag, EXYNOS_CHIPID,
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0x1000, 0, &chipid) != 0)
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panic("Couldn't map chipid\n");
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reg = bus_space_read_4(fdtbus_bs_tag, chipid, 0x0);
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bus_space_unmap(fdtbus_bs_tag, chipid, 0x1000);
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return (reg & EXYNOS5_SOC_ID_MASK);
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}
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void
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exynos5_mp_setmaxid(platform_t plat)
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{
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if (exynos_get_soc_id() == EXYNOS5420_SOC_ID)
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mp_ncpus = 4;
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else
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mp_ncpus = 2;
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mp_maxid = mp_ncpus - 1;
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}
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void
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exynos5_mp_start_ap(platform_t plat)
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{
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bus_addr_t sysram, pmu;
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int err, i, j;
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int status;
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int reg;
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err = bus_space_map(fdtbus_bs_tag, EXYNOS_PMU_BASE, 0x20000, 0, &pmu);
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if (err != 0)
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panic("Couldn't map pmu\n");
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if (exynos_get_soc_id() == EXYNOS5420_SOC_ID)
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reg = EXYNOS5420_SYSRAM_NS;
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else
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reg = EXYNOS_SYSRAM;
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err = bus_space_map(fdtbus_bs_tag, reg, 0x100, 0, &sysram);
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if (err != 0)
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panic("Couldn't map sysram\n");
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/* Give power to CPUs */
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for (i = 1; i < mp_ncpus; i++) {
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bus_space_write_4(fdtbus_bs_tag, pmu, CORE_CONFIG(i),
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CORE_PWR_EN);
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for (j = 10; j >= 0; j--) {
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status = bus_space_read_4(fdtbus_bs_tag, pmu,
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CORE_STATUS(i));
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if ((status & CORE_PWR_EN) == CORE_PWR_EN)
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break;
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DELAY(10);
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if (j == 0)
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printf("Can't power on CPU%d\n", i);
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}
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}
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bus_space_write_4(fdtbus_bs_tag, sysram, 0x0,
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pmap_kextract((vm_offset_t)mpentry));
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dcache_wbinv_poc_all();
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dsb();
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sev();
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bus_space_unmap(fdtbus_bs_tag, sysram, 0x100);
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bus_space_unmap(fdtbus_bs_tag, pmu, 0x20000);
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}
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