11fc593feSArnd Bergmann/* 21fc593feSArnd Bergmann * Copyright 2011 Freescale Semiconductor, Inc. 31fc593feSArnd Bergmann * Copyright 2011 Linaro Ltd. 41fc593feSArnd Bergmann * 51fc593feSArnd Bergmann * The code contained herein is licensed under the GNU General Public 61fc593feSArnd Bergmann * License. You may obtain a copy of the GNU General Public License 71fc593feSArnd Bergmann * Version 2 or later at the following locations: 81fc593feSArnd Bergmann * 91fc593feSArnd Bergmann * http://www.opensource.org/licenses/gpl-license.html 101fc593feSArnd Bergmann * http://www.gnu.org/copyleft/gpl.html 111fc593feSArnd Bergmann */ 121fc593feSArnd Bergmann 131fc593feSArnd Bergmann#include <linux/linkage.h> 141fc593feSArnd Bergmann#include <linux/init.h> 151fc593feSArnd Bergmann#include <asm/asm-offsets.h> 161fc593feSArnd Bergmann#include <asm/hardware/cache-l2x0.h> 171fc593feSArnd Bergmann 181fc593feSArnd Bergmann .section ".text.head", "ax" 191fc593feSArnd Bergmann 201fc593feSArnd Bergmann#ifdef CONFIG_SMP 211fc593feSArnd BergmannENTRY(v7_secondary_startup) 221fc593feSArnd Bergmann bl v7_invalidate_l1 231fc593feSArnd Bergmann b secondary_startup 241fc593feSArnd BergmannENDPROC(v7_secondary_startup) 251fc593feSArnd Bergmann#endif 261fc593feSArnd Bergmann 271fc593feSArnd Bergmann#ifdef CONFIG_PM 281fc593feSArnd Bergmann/* 29b4e61537SNicolas Pitre * The following code must assume it is running from physical address 30b4e61537SNicolas Pitre * where absolute virtual addresses to the data section have to be 31b4e61537SNicolas Pitre * turned into relative ones. 321fc593feSArnd Bergmann */ 331fc593feSArnd Bergmann 341fc593feSArnd Bergmann#ifdef CONFIG_CACHE_L2X0 351fc593feSArnd Bergmann .macro pl310_resume 36b4e61537SNicolas Pitre adr r0, l2x0_saved_regs_offset 37b4e61537SNicolas Pitre ldr r2, [r0] 38b4e61537SNicolas Pitre add r2, r2, r0 391fc593feSArnd Bergmann ldr r0, [r2, #L2X0_R_PHY_BASE] @ get physical base of l2x0 401fc593feSArnd Bergmann ldr r1, [r2, #L2X0_R_AUX_CTRL] @ get aux_ctrl value 411fc593feSArnd Bergmann str r1, [r0, #L2X0_AUX_CTRL] @ restore aux_ctrl 421fc593feSArnd Bergmann mov r1, #0x1 431fc593feSArnd Bergmann str r1, [r0, #L2X0_CTRL] @ re-enable L2 441fc593feSArnd Bergmann .endm 451fc593feSArnd Bergmann 46b4e61537SNicolas Pitrel2x0_saved_regs_offset: 47b4e61537SNicolas Pitre .word l2x0_saved_regs - . 48b4e61537SNicolas Pitre 491fc593feSArnd Bergmann#else 501fc593feSArnd Bergmann .macro pl310_resume 511fc593feSArnd Bergmann .endm 521fc593feSArnd Bergmann#endif 531fc593feSArnd Bergmann 541fc593feSArnd BergmannENTRY(v7_cpu_resume) 551fc593feSArnd Bergmann bl v7_invalidate_l1 561fc593feSArnd Bergmann pl310_resume 571fc593feSArnd Bergmann b cpu_resume 581fc593feSArnd BergmannENDPROC(v7_cpu_resume) 591fc593feSArnd Bergmann#endif 60