| /* |
| * Copyright 2011 Freescale Semiconductor, Inc. |
| * Copyright 2011 Linaro Ltd. |
| * |
| * The code contained herein is licensed under the GNU General Public |
| * License. You may obtain a copy of the GNU General Public License |
| * Version 2 or later at the following locations: |
| * |
| * http://www.opensource.org/licenses/gpl-license.html |
| * http://www.gnu.org/copyleft/gpl.html |
| */ |
| |
| #include <linux/linkage.h> |
| #include <linux/init.h> |
| #include <asm/asm-offsets.h> |
| #include <asm/hardware/cache-l2x0.h> |
| |
| .section ".text.head", "ax" |
| |
| #ifdef CONFIG_SMP |
| diag_reg_offset: |
| .word g_diag_reg - . |
| |
| .macro set_diag_reg |
| adr r0, diag_reg_offset |
| ldr r1, [r0] |
| add r1, r1, r0 @ r1 = physical &g_diag_reg |
| ldr r0, [r1] |
| mcr p15, 0, r0, c15, c0, 1 @ write diagnostic register |
| .endm |
| |
| ENTRY(v7_secondary_startup) |
| bl v7_invalidate_l1 |
| set_diag_reg |
| b secondary_startup |
| ENDPROC(v7_secondary_startup) |
| #endif |
| |
| #ifdef CONFIG_ARM_CPU_SUSPEND |
| /* |
| * The following code must assume it is running from physical address |
| * where absolute virtual addresses to the data section have to be |
| * turned into relative ones. |
| */ |
| |
| #ifdef CONFIG_CACHE_L2X0 |
| .macro pl310_resume |
| adr r0, l2x0_saved_regs_offset |
| ldr r2, [r0] |
| add r2, r2, r0 |
| ldr r0, [r2, #L2X0_R_PHY_BASE] @ get physical base of l2x0 |
| ldr r1, [r2, #L2X0_R_AUX_CTRL] @ get aux_ctrl value |
| str r1, [r0, #L2X0_AUX_CTRL] @ restore aux_ctrl |
| mov r1, #0x1 |
| str r1, [r0, #L2X0_CTRL] @ re-enable L2 |
| .endm |
| |
| l2x0_saved_regs_offset: |
| .word l2x0_saved_regs - . |
| |
| #else |
| .macro pl310_resume |
| .endm |
| #endif |
| |
| ENTRY(v7_cpu_resume) |
| bl v7_invalidate_l1 |
| pl310_resume |
| b cpu_resume |
| ENDPROC(v7_cpu_resume) |
| #endif |
