xref: /openbmc/linux/drivers/memory/tegra/mc.h (revision 3e30a927)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (C) 2014 NVIDIA CORPORATION.  All rights reserved.
4  */
5 
6 #ifndef MEMORY_TEGRA_MC_H
7 #define MEMORY_TEGRA_MC_H
8 
9 #include <linux/bits.h>
10 #include <linux/io.h>
11 #include <linux/types.h>
12 
13 #include <soc/tegra/mc.h>
14 
15 #define MC_INTSTATUS					0x00
16 #define MC_INTMASK					0x04
17 #define MC_ERR_STATUS					0x08
18 #define MC_ERR_ADR					0x0c
19 #define MC_GART_ERROR_REQ				0x30
20 #define MC_EMEM_ADR_CFG					0x54
21 #define MC_DECERR_EMEM_OTHERS_STATUS			0x58
22 #define MC_SECURITY_VIOLATION_STATUS			0x74
23 #define MC_EMEM_ARB_CFG					0x90
24 #define MC_EMEM_ARB_OUTSTANDING_REQ			0x94
25 #define MC_EMEM_ARB_TIMING_RCD				0x98
26 #define MC_EMEM_ARB_TIMING_RP				0x9c
27 #define MC_EMEM_ARB_TIMING_RC				0xa0
28 #define MC_EMEM_ARB_TIMING_RAS				0xa4
29 #define MC_EMEM_ARB_TIMING_FAW				0xa8
30 #define MC_EMEM_ARB_TIMING_RRD				0xac
31 #define MC_EMEM_ARB_TIMING_RAP2PRE			0xb0
32 #define MC_EMEM_ARB_TIMING_WAP2PRE			0xb4
33 #define MC_EMEM_ARB_TIMING_R2R				0xb8
34 #define MC_EMEM_ARB_TIMING_W2W				0xbc
35 #define MC_EMEM_ARB_TIMING_R2W				0xc0
36 #define MC_EMEM_ARB_TIMING_W2R				0xc4
37 #define MC_EMEM_ARB_DA_TURNS				0xd0
38 #define MC_EMEM_ARB_DA_COVERS				0xd4
39 #define MC_EMEM_ARB_MISC0				0xd8
40 #define MC_EMEM_ARB_MISC1				0xdc
41 #define MC_EMEM_ARB_RING1_THROTTLE			0xe0
42 #define MC_EMEM_ARB_OVERRIDE				0xe8
43 #define MC_TIMING_CONTROL_DBG				0xf8
44 #define MC_TIMING_CONTROL				0xfc
45 
46 #define MC_INT_DECERR_MTS				BIT(16)
47 #define MC_INT_SECERR_SEC				BIT(13)
48 #define MC_INT_DECERR_VPR				BIT(12)
49 #define MC_INT_INVALID_APB_ASID_UPDATE			BIT(11)
50 #define MC_INT_INVALID_SMMU_PAGE			BIT(10)
51 #define MC_INT_ARBITRATION_EMEM				BIT(9)
52 #define MC_INT_SECURITY_VIOLATION			BIT(8)
53 #define MC_INT_INVALID_GART_PAGE			BIT(7)
54 #define MC_INT_DECERR_EMEM				BIT(6)
55 
56 #define MC_ERR_STATUS_TYPE_SHIFT			28
57 #define MC_ERR_STATUS_TYPE_INVALID_SMMU_PAGE		(0x6 << 28)
58 #define MC_ERR_STATUS_TYPE_MASK				(0x7 << 28)
59 #define MC_ERR_STATUS_READABLE				BIT(27)
60 #define MC_ERR_STATUS_WRITABLE				BIT(26)
61 #define MC_ERR_STATUS_NONSECURE				BIT(25)
62 #define MC_ERR_STATUS_ADR_HI_SHIFT			20
63 #define MC_ERR_STATUS_ADR_HI_MASK			0x3
64 #define MC_ERR_STATUS_SECURITY				BIT(17)
65 #define MC_ERR_STATUS_RW				BIT(16)
66 
67 #define MC_EMEM_ADR_CFG_EMEM_NUMDEV			BIT(0)
68 
69 #define MC_EMEM_ARB_CFG_CYCLES_PER_UPDATE(x)		((x) & 0x1ff)
70 #define MC_EMEM_ARB_CFG_CYCLES_PER_UPDATE_MASK		0x1ff
71 
72 #define MC_EMEM_ARB_OUTSTANDING_REQ_MAX_MASK		0x1ff
73 #define MC_EMEM_ARB_OUTSTANDING_REQ_HOLDOFF_OVERRIDE	BIT(30)
74 #define MC_EMEM_ARB_OUTSTANDING_REQ_LIMIT_ENABLE	BIT(31)
75 
76 #define MC_EMEM_ARB_OVERRIDE_EACK_MASK			0x3
77 
78 #define MC_TIMING_UPDATE				BIT(0)
79 
80 static inline u32 mc_readl(struct tegra_mc *mc, unsigned long offset)
81 {
82 	return readl_relaxed(mc->regs + offset);
83 }
84 
85 static inline void mc_writel(struct tegra_mc *mc, u32 value,
86 			     unsigned long offset)
87 {
88 	writel_relaxed(value, mc->regs + offset);
89 }
90 
91 extern const struct tegra_mc_reset_ops tegra_mc_reset_ops_common;
92 
93 #ifdef CONFIG_ARCH_TEGRA_2x_SOC
94 extern const struct tegra_mc_soc tegra20_mc_soc;
95 #endif
96 
97 #ifdef CONFIG_ARCH_TEGRA_3x_SOC
98 extern const struct tegra_mc_soc tegra30_mc_soc;
99 #endif
100 
101 #ifdef CONFIG_ARCH_TEGRA_114_SOC
102 extern const struct tegra_mc_soc tegra114_mc_soc;
103 #endif
104 
105 #ifdef CONFIG_ARCH_TEGRA_124_SOC
106 extern const struct tegra_mc_soc tegra124_mc_soc;
107 #endif
108 
109 #ifdef CONFIG_ARCH_TEGRA_132_SOC
110 extern const struct tegra_mc_soc tegra132_mc_soc;
111 #endif
112 
113 #ifdef CONFIG_ARCH_TEGRA_210_SOC
114 extern const struct tegra_mc_soc tegra210_mc_soc;
115 #endif
116 
117 #endif /* MEMORY_TEGRA_MC_H */
118