1/* 2 * Copyright 2011 Freescale Semiconductor, Inc. 3 * Copyright 2011 Linaro Ltd. 4 * 5 * The code contained herein is licensed under the GNU General Public 6 * License. You may obtain a copy of the GNU General Public License 7 * Version 2 or later at the following locations: 8 * 9 * http://www.opensource.org/licenses/gpl-license.html 10 * http://www.gnu.org/copyleft/gpl.html 11 */ 12 13#include <linux/linkage.h> 14#include <linux/init.h> 15#include <asm/asm-offsets.h> 16#include <asm/hardware/cache-l2x0.h> 17 18 .section ".text.head", "ax" 19 20#ifdef CONFIG_SMP 21ENTRY(v7_secondary_startup) 22 bl v7_invalidate_l1 23 b secondary_startup 24ENDPROC(v7_secondary_startup) 25#endif 26 27#ifdef CONFIG_ARM_CPU_SUSPEND 28/* 29 * The following code must assume it is running from physical address 30 * where absolute virtual addresses to the data section have to be 31 * turned into relative ones. 32 */ 33 34#ifdef CONFIG_CACHE_L2X0 35 .macro pl310_resume 36 adr r0, l2x0_saved_regs_offset 37 ldr r2, [r0] 38 add r2, r2, r0 39 ldr r0, [r2, #L2X0_R_PHY_BASE] @ get physical base of l2x0 40 ldr r1, [r2, #L2X0_R_AUX_CTRL] @ get aux_ctrl value 41 str r1, [r0, #L2X0_AUX_CTRL] @ restore aux_ctrl 42 mov r1, #0x1 43 str r1, [r0, #L2X0_CTRL] @ re-enable L2 44 .endm 45 46l2x0_saved_regs_offset: 47 .word l2x0_saved_regs - . 48 49#else 50 .macro pl310_resume 51 .endm 52#endif 53 54ENTRY(v7_cpu_resume) 55 bl v7_invalidate_l1 56 pl310_resume 57 b cpu_resume 58ENDPROC(v7_cpu_resume) 59#endif 60