flowctrl.h (2245B)
1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * Functions and macros to control the flowcontroller 4 * 5 * Copyright (c) 2010-2012, NVIDIA Corporation. All rights reserved. 6 */ 7 8#ifndef __SOC_TEGRA_FLOWCTRL_H__ 9#define __SOC_TEGRA_FLOWCTRL_H__ 10 11#define FLOW_CTRL_HALT_CPU0_EVENTS 0x0 12#define FLOW_CTRL_WAITEVENT (2 << 29) 13#define FLOW_CTRL_WAIT_FOR_INTERRUPT (4 << 29) 14#define FLOW_CTRL_JTAG_RESUME (1 << 28) 15#define FLOW_CTRL_SCLK_RESUME (1 << 27) 16#define FLOW_CTRL_HALT_CPU_IRQ (1 << 10) 17#define FLOW_CTRL_HALT_CPU_FIQ (1 << 8) 18#define FLOW_CTRL_HALT_LIC_IRQ (1 << 11) 19#define FLOW_CTRL_HALT_LIC_FIQ (1 << 10) 20#define FLOW_CTRL_HALT_GIC_IRQ (1 << 9) 21#define FLOW_CTRL_HALT_GIC_FIQ (1 << 8) 22#define FLOW_CTRL_CPU0_CSR 0x8 23#define FLOW_CTRL_CSR_INTR_FLAG (1 << 15) 24#define FLOW_CTRL_CSR_EVENT_FLAG (1 << 14) 25#define FLOW_CTRL_CSR_ENABLE_EXT_CRAIL (1 << 13) 26#define FLOW_CTRL_CSR_ENABLE_EXT_NCPU (1 << 12) 27#define FLOW_CTRL_CSR_ENABLE_EXT_MASK ( \ 28 FLOW_CTRL_CSR_ENABLE_EXT_NCPU | \ 29 FLOW_CTRL_CSR_ENABLE_EXT_CRAIL) 30#define FLOW_CTRL_CSR_ENABLE (1 << 0) 31#define FLOW_CTRL_HALT_CPU1_EVENTS 0x14 32#define FLOW_CTRL_CPU1_CSR 0x18 33 34#define TEGRA20_FLOW_CTRL_CSR_WFE_CPU0 (1 << 4) 35#define TEGRA20_FLOW_CTRL_CSR_WFE_BITMAP (3 << 4) 36#define TEGRA20_FLOW_CTRL_CSR_WFI_BITMAP 0 37 38#define TEGRA30_FLOW_CTRL_CSR_WFI_CPU0 (1 << 8) 39#define TEGRA30_FLOW_CTRL_CSR_WFE_BITMAP (0xF << 4) 40#define TEGRA30_FLOW_CTRL_CSR_WFI_BITMAP (0xF << 8) 41 42#ifndef __ASSEMBLY__ 43#ifdef CONFIG_SOC_TEGRA_FLOWCTRL 44u32 flowctrl_read_cpu_csr(unsigned int cpuid); 45void flowctrl_write_cpu_csr(unsigned int cpuid, u32 value); 46void flowctrl_write_cpu_halt(unsigned int cpuid, u32 value); 47 48void flowctrl_cpu_suspend_enter(unsigned int cpuid); 49void flowctrl_cpu_suspend_exit(unsigned int cpuid); 50#else 51static inline u32 flowctrl_read_cpu_csr(unsigned int cpuid) 52{ 53 return 0; 54} 55 56static inline void flowctrl_write_cpu_csr(unsigned int cpuid, u32 value) 57{ 58} 59 60static inline void flowctrl_write_cpu_halt(unsigned int cpuid, u32 value) {} 61 62static inline void flowctrl_cpu_suspend_enter(unsigned int cpuid) 63{ 64} 65 66static inline void flowctrl_cpu_suspend_exit(unsigned int cpuid) 67{ 68} 69#endif /* CONFIG_SOC_TEGRA_FLOWCTRL */ 70#endif /* __ASSEMBLY */ 71#endif /* __SOC_TEGRA_FLOWCTRL_H__ */