| /* |
| * |
| * Copyright (c) 2012 Christoffer Dall <c.dall@virtualopensystems.com> |
| * <cdall@cs.columbia.edu> |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * 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 <config.h> |
| |
| __smp_pen: |
| wfe |
| ldr r1, [r0] |
| mov pc, r1 |
| |
| .globl enter_smp_pen |
| enter_smp_pen: |
| adr r1, __smp_pen |
| ldmia r1, {r4, r5, r6} |
| ldr r2, =CONFIG_SPL_SMP_PEN |
| stmia r2, {r4, r5, r6} |
| |
| /* |
| * Store SMP pen into SYSFLAGS so the processor stays in the loop if |
| * it gets a spurious interrupt |
| */ |
| ldr r0, =CONFIG_SYSFLAGS_ADDR |
| str r2, [r0] |
| |
| /* |
| * Make instruction copy coherent |
| */ |
| mcr p15, 0, r2, c7, c11, 1 /* Clean the data cache by MVA*/ |
| mov r10, #0 |
| mcr p15, 0, r10, c7, c5, 0 /* Invalidate the I-cache */ |
| isb /* Make sure the invalidate ops are complete */ |
| dsb |
| |
| mov pc, r2 |
| |
| .globl smp_kick_secondary |
| smp_kick_secondary: |
| /* Bring up the secondary CPU */ |
| ldr r0, =CONFIG_SYSFLAGS_ADDR |
| ldr r1, =CONFIG_SPL_TEXT_BASE |
| str r1, [r0] |
| dsb |
| ldr r0, =(EXYNOS5_GIC_DIST_BASE + 0xf00) /* GICD_SGIR */ |
| ldr r1, =(2 << 16) /* Bring up CPU 1*/ |
| str r1, [r0] |
| dsb |
| |
| mov pc, lr |
