| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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 |
| 44 | u32 flowctrl_read_cpu_csr(unsigned int cpuid); |
| 45 | void flowctrl_write_cpu_csr(unsigned int cpuid, u32 value); |
| 46 | void flowctrl_write_cpu_halt(unsigned int cpuid, u32 value); |
| 47 | |
| 48 | void flowctrl_cpu_suspend_enter(unsigned int cpuid); |
| 49 | void flowctrl_cpu_suspend_exit(unsigned int cpuid); |
| 50 | #else |
| 51 | static inline u32 flowctrl_read_cpu_csr(unsigned int cpuid) |
| 52 | { |
| 53 | return 0; |
| 54 | } |
| 55 | |
| 56 | static inline void flowctrl_write_cpu_csr(unsigned int cpuid, u32 value) |
| 57 | { |
| 58 | } |
| 59 | |
| 60 | static inline void flowctrl_write_cpu_halt(unsigned int cpuid, u32 value) {} |
| 61 | |
| 62 | static inline void flowctrl_cpu_suspend_enter(unsigned int cpuid) |
| 63 | { |
| 64 | } |
| 65 | |
| 66 | static 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__ */ |