32 lines
680 B
C
32 lines
680 B
C
/*
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* Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <mapmem.h>
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#include <linux/io.h>
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#include <linux/sizes.h>
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#define UNIPHIER_SMPCTRL_ROM_RSV0 0x59801200
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void uniphier_smp_setup(void);
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void uniphier_secondary_startup(void);
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void uniphier_smp_kick_all_cpus(void)
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{
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void __iomem *rom_boot_rsv0;
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rom_boot_rsv0 = map_sysmem(UNIPHIER_SMPCTRL_ROM_RSV0, SZ_8);
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writeq((u64)uniphier_secondary_startup, rom_boot_rsv0);
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readq(rom_boot_rsv0); /* relax */
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unmap_sysmem(rom_boot_rsv0);
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uniphier_smp_setup();
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asm("sev"); /* Bring up all secondary CPUs from Boot ROM into U-Boot */
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}
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