2 * Copyright (C) 2016 Socionext Inc.
3 * Author: Masahiro Yamada <yamada.masahiro@socionext.com>
5 * SPDX-License-Identifier: GPL-2.0+
9 #include <linux/sizes.h>
13 #define UNIPHIER_SMPCTRL_ROM_RSV0 0x59801200
15 void uniphier_smp_setup(void);
16 void uniphier_secondary_startup(void);
18 void uniphier_smp_kick_all_cpus(void)
20 void __iomem *rom_boot_rsv0;
22 rom_boot_rsv0 = ioremap(UNIPHIER_SMPCTRL_ROM_RSV0, SZ_8);
24 writeq((u64)uniphier_secondary_startup, rom_boot_rsv0);
26 iounmap(rom_boot_rsv0);
30 asm("dsb ishst\n" /* Ensure the write to ROM_RSV0 is visible */
31 "sev"); /* Bring up all secondary CPUs from Boot ROM into U-Boot */