1 /*
2  * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
3  * Copyright (c) 2020, NVIDIA Corporation. All rights reserved.
4  *
5  * SPDX-License-Identifier: BSD-3-Clause
6  */
7 
8 #ifndef FLOWCTRL_H
9 #define FLOWCTRL_H
10 
11 #include <lib/mmio.h>
12 
13 #include <stdbool.h>
14 
15 #include <tegra_def.h>
16 
17 #define FLOWCTRL_HALT_CPU0_EVENTS	(0x0U)
18 #define  FLOWCTRL_WAITEVENT		(2U << 29)
19 #define  FLOWCTRL_WAIT_FOR_INTERRUPT	(4U << 29)
20 #define  FLOWCTRL_JTAG_RESUME		(1U << 28)
21 #define  FLOWCTRL_HALT_SCLK		(1U << 27)
22 #define  FLOWCTRL_HALT_LIC_IRQ		(1U << 11)
23 #define  FLOWCTRL_HALT_LIC_FIQ		(1U << 10)
24 #define  FLOWCTRL_HALT_GIC_IRQ		(1U << 9)
25 #define  FLOWCTRL_HALT_GIC_FIQ		(1U << 8)
26 #define FLOWCTRL_HALT_BPMP_EVENTS	(0x4U)
27 #define FLOWCTRL_CPU0_CSR		(0x8U)
28 #define  FLOWCTRL_CSR_HALT_MASK		(1U << 22)
29 #define  FLOWCTRL_CSR_PWR_OFF_STS	(1U << 16)
30 #define  FLOWCTRL_CSR_INTR_FLAG		(1U << 15)
31 #define  FLOWCTRL_CSR_EVENT_FLAG	(1U << 14)
32 #define  FLOWCTRL_CSR_IMMEDIATE_WAKE	(1U << 3)
33 #define  FLOWCTRL_CSR_ENABLE		(1U << 0)
34 #define FLOWCTRL_HALT_CPU1_EVENTS	(0x14U)
35 #define FLOWCTRL_CPU1_CSR		(0x18U)
36 #define FLOW_CTLR_FLOW_DBG_QUAL		(0x50U)
37 #define  FLOWCTRL_FIQ2CCPLEX_ENABLE	(1U << 28)
38 #define FLOWCTRL_FC_SEQ_INTERCEPT	(0x5cU)
39 #define  INTERCEPT_IRQ_PENDING		(0xffU)
40 #define  INTERCEPT_HVC			(U(1) << 21)
41 #define  INTERCEPT_ENTRY_CC4		(U(1) << 20)
42 #define  INTERCEPT_ENTRY_PG_NONCPU	(U(1) << 19)
43 #define  INTERCEPT_EXIT_PG_NONCPU	(U(1) << 18)
44 #define  INTERCEPT_ENTRY_RG_CPU		(U(1) << 17)
45 #define  INTERCEPT_EXIT_RG_CPU		(U(1) << 16)
46 #define  INTERCEPT_ENTRY_PG_CORE0	(U(1) << 15)
47 #define  INTERCEPT_EXIT_PG_CORE0	(U(1) << 14)
48 #define  INTERCEPT_ENTRY_PG_CORE1	(U(1) << 13)
49 #define  INTERCEPT_EXIT_PG_CORE1	(U(1) << 12)
50 #define  INTERCEPT_ENTRY_PG_CORE2	(U(1) << 11)
51 #define  INTERCEPT_EXIT_PG_CORE2	(U(1) << 10)
52 #define  INTERCEPT_ENTRY_PG_CORE3	(U(1) << 9)
53 #define  INTERCEPT_EXIT_PG_CORE3	(U(1) << 8)
54 #define  INTERRUPT_PENDING_NONCPU	(U(1) << 7)
55 #define  INTERRUPT_PENDING_CRAIL	(U(1) << 6)
56 #define  INTERRUPT_PENDING_CORE0	(U(1) << 5)
57 #define  INTERRUPT_PENDING_CORE1	(U(1) << 4)
58 #define  INTERRUPT_PENDING_CORE2	(U(1) << 3)
59 #define  INTERRUPT_PENDING_CORE3	(U(1) << 2)
60 #define  CC4_INTERRUPT_PENDING		(U(1) << 1)
61 #define  HVC_INTERRUPT_PENDING		(U(1) << 0)
62 #define FLOWCTRL_CC4_CORE0_CTRL		(0x6cU)
63 #define FLOWCTRL_WAIT_WFI_BITMAP	(0x100U)
64 #define FLOWCTRL_L2_FLUSH_CONTROL	(0x94U)
65 #define FLOWCTRL_BPMP_CLUSTER_CONTROL	(0x98U)
66 #define  FLOWCTRL_BPMP_CLUSTER_PWRON_LOCK	(1U << 2)
67 
68 #define FLOWCTRL_ENABLE_EXT		12U
69 #define FLOWCTRL_ENABLE_EXT_MASK	3U
70 #define FLOWCTRL_PG_CPU_NONCPU		0x1U
71 #define FLOWCTRL_TURNOFF_CPURAIL	0x2U
72 
tegra_fc_read_32(uint32_t off)73 static inline uint32_t tegra_fc_read_32(uint32_t off)
74 {
75 	return mmio_read_32(TEGRA_FLOWCTRL_BASE + off);
76 }
77 
tegra_fc_write_32(uint32_t off,uint32_t val)78 static inline void tegra_fc_write_32(uint32_t off, uint32_t val)
79 {
80 	mmio_write_32(TEGRA_FLOWCTRL_BASE + off, val);
81 }
82 
83 void tegra_fc_bpmp_on(uint32_t entrypoint);
84 void tegra_fc_bpmp_off(void);
85 void tegra_fc_ccplex_pgexit_lock(void);
86 void tegra_fc_ccplex_pgexit_unlock(void);
87 void tegra_fc_cluster_idle(uint32_t midr);
88 void tegra_fc_cpu_powerdn(uint32_t mpidr);
89 void tegra_fc_cluster_powerdn(uint32_t midr);
90 void tegra_fc_cpu_on(int cpu);
91 void tegra_fc_cpu_off(int cpu);
92 void tegra_fc_disable_fiq_to_ccplex_routing(void);
93 void tegra_fc_enable_fiq_to_ccplex_routing(void);
94 bool tegra_fc_is_ccx_allowed(void);
95 void tegra_fc_lock_active_cluster(void);
96 void tegra_fc_soc_powerdn(uint32_t midr);
97 
98 #endif /* FLOWCTRL_H */
99