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- /*
- * SMP support for SoC sh73a0
- *
- * Copyright (C) 2012 Bastian Hecht
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR /PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
- #include <linux/linkage.h>
- #include <linux/init.h>
- #include <asm/memory.h>
- __CPUINIT
- /*
- * Reset vector for secondary CPUs.
- *
- * First we turn on L1 cache coherency for our CPU. Then we jump to
- * shmobile_invalidate_start that invalidates the cache and hands over control
- * to the common ARM startup code.
- * This function will be mapped to address 0 by the SBAR register.
- * A normal branch is out of range here so we need a long jump. We jump to
- * the physical address as the MMU is still turned off.
- */
- .align 12
- ENTRY(sh73a0_secondary_vector)
- mrc p15, 0, r0, c0, c0, 5 @ read MIPDR
- and r0, r0, #3 @ mask out cpu ID
- lsl r0, r0, #3 @ we will shift by cpu_id * 8 bits
- mov r1, #0xf0000000 @ SCU base address
- ldr r2, [r1, #8] @ SCU Power Status Register
- mov r3, #3
- bic r2, r2, r3, lsl r0 @ Clear bits of our CPU (Run Mode)
- str r2, [r1, #8] @ write back
- ldr pc, 1f
- 1: .long shmobile_invalidate_start - PAGE_OFFSET + PLAT_PHYS_OFFSET
- ENDPROC(sh73a0_secondary_vector)
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