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- /* SPDX-License-Identifier: GPL-2.0-only */
- /*
- * Functions and macros to control the flowcontroller
- *
- * Copyright (c) 2010-2012, NVIDIA Corporation. All rights reserved.
- */
- #ifndef __SOC_TEGRA_FLOWCTRL_H__
- #define __SOC_TEGRA_FLOWCTRL_H__
- #define FLOW_CTRL_HALT_CPU0_EVENTS 0x0
- #define FLOW_CTRL_WAITEVENT (2 << 29)
- #define FLOW_CTRL_WAIT_FOR_INTERRUPT (4 << 29)
- #define FLOW_CTRL_JTAG_RESUME (1 << 28)
- #define FLOW_CTRL_SCLK_RESUME (1 << 27)
- #define FLOW_CTRL_HALT_CPU_IRQ (1 << 10)
- #define FLOW_CTRL_HALT_CPU_FIQ (1 << 8)
- #define FLOW_CTRL_HALT_LIC_IRQ (1 << 11)
- #define FLOW_CTRL_HALT_LIC_FIQ (1 << 10)
- #define FLOW_CTRL_HALT_GIC_IRQ (1 << 9)
- #define FLOW_CTRL_HALT_GIC_FIQ (1 << 8)
- #define FLOW_CTRL_CPU0_CSR 0x8
- #define FLOW_CTRL_CSR_INTR_FLAG (1 << 15)
- #define FLOW_CTRL_CSR_EVENT_FLAG (1 << 14)
- #define FLOW_CTRL_CSR_ENABLE_EXT_CRAIL (1 << 13)
- #define FLOW_CTRL_CSR_ENABLE_EXT_NCPU (1 << 12)
- #define FLOW_CTRL_CSR_ENABLE_EXT_MASK ( \
- FLOW_CTRL_CSR_ENABLE_EXT_NCPU | \
- FLOW_CTRL_CSR_ENABLE_EXT_CRAIL)
- #define FLOW_CTRL_CSR_ENABLE (1 << 0)
- #define FLOW_CTRL_HALT_CPU1_EVENTS 0x14
- #define FLOW_CTRL_CPU1_CSR 0x18
- #define TEGRA20_FLOW_CTRL_CSR_WFE_CPU0 (1 << 4)
- #define TEGRA20_FLOW_CTRL_CSR_WFE_BITMAP (3 << 4)
- #define TEGRA20_FLOW_CTRL_CSR_WFI_BITMAP 0
- #define TEGRA30_FLOW_CTRL_CSR_WFI_CPU0 (1 << 8)
- #define TEGRA30_FLOW_CTRL_CSR_WFE_BITMAP (0xF << 4)
- #define TEGRA30_FLOW_CTRL_CSR_WFI_BITMAP (0xF << 8)
- #ifndef __ASSEMBLY__
- #ifdef CONFIG_SOC_TEGRA_FLOWCTRL
- u32 flowctrl_read_cpu_csr(unsigned int cpuid);
- void flowctrl_write_cpu_csr(unsigned int cpuid, u32 value);
- void flowctrl_write_cpu_halt(unsigned int cpuid, u32 value);
- void flowctrl_cpu_suspend_enter(unsigned int cpuid);
- void flowctrl_cpu_suspend_exit(unsigned int cpuid);
- #else
- static inline u32 flowctrl_read_cpu_csr(unsigned int cpuid)
- {
- return 0;
- }
- static inline void flowctrl_write_cpu_csr(unsigned int cpuid, u32 value)
- {
- }
- static inline void flowctrl_write_cpu_halt(unsigned int cpuid, u32 value) {}
- static inline void flowctrl_cpu_suspend_enter(unsigned int cpuid)
- {
- }
- static inline void flowctrl_cpu_suspend_exit(unsigned int cpuid)
- {
- }
- #endif /* CONFIG_SOC_TEGRA_FLOWCTRL */
- #endif /* __ASSEMBLY */
- #endif /* __SOC_TEGRA_FLOWCTRL_H__ */
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