common.h (1123B)
1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * This file contains common function prototypes to avoid externs 4 * in the c files. 5 * 6 * Copyright (C) 2011 Xilinx 7 */ 8 9#ifndef __MACH_ZYNQ_COMMON_H__ 10#define __MACH_ZYNQ_COMMON_H__ 11 12extern int zynq_slcr_init(void); 13extern int zynq_early_slcr_init(void); 14extern void zynq_slcr_cpu_stop(int cpu); 15extern void zynq_slcr_cpu_start(int cpu); 16extern bool zynq_slcr_cpu_state_read(int cpu); 17extern void zynq_slcr_cpu_state_write(int cpu, bool die); 18extern u32 zynq_slcr_get_device_id(void); 19 20#ifdef CONFIG_SMP 21extern char zynq_secondary_trampoline; 22extern char zynq_secondary_trampoline_jump; 23extern char zynq_secondary_trampoline_end; 24extern int zynq_cpun_start(u32 address, int cpu); 25extern const struct smp_operations zynq_smp_ops; 26#endif 27 28extern void __iomem *zynq_scu_base; 29 30void zynq_pm_late_init(void); 31 32static inline void zynq_core_pm_init(void) 33{ 34 /* A9 clock gating */ 35 asm volatile ("mrc p15, 0, r12, c15, c0, 0\n" 36 "orr r12, r12, #1\n" 37 "mcr p15, 0, r12, c15, c0, 0\n" 38 : /* no outputs */ 39 : /* no inputs */ 40 : "r12"); 41} 42 43#endif