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1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright 2008-2011 Freescale Semiconductor, Inc.
4  */
5 
6 #ifndef _FSL_LAW_H_
7 #define _FSL_LAW_H_
8 
9 #include <asm/io.h>
10 #include <linux/log2.h>
11 
12 #define LAW_EN	0x80000000
13 
14 #define SET_LAW_ENTRY(idx, a, sz, trgt) \
15 	{ .index = idx, .addr = a, .size = sz, .trgt_id = trgt }
16 
17 #define SET_LAW(a, sz, trgt) \
18 	{ .index = -1, .addr = a, .size = sz, .trgt_id = trgt }
19 
20 enum law_size {
21 	LAW_SIZE_4K = 0xb,
22 	LAW_SIZE_8K,
23 	LAW_SIZE_16K,
24 	LAW_SIZE_32K,
25 	LAW_SIZE_64K,
26 	LAW_SIZE_128K,
27 	LAW_SIZE_256K,
28 	LAW_SIZE_512K,
29 	LAW_SIZE_1M,
30 	LAW_SIZE_2M,
31 	LAW_SIZE_4M,
32 	LAW_SIZE_8M,
33 	LAW_SIZE_16M,
34 	LAW_SIZE_32M,
35 	LAW_SIZE_64M,
36 	LAW_SIZE_128M,
37 	LAW_SIZE_256M,
38 	LAW_SIZE_512M,
39 	LAW_SIZE_1G,
40 	LAW_SIZE_2G,
41 	LAW_SIZE_4G,
42 	LAW_SIZE_8G,
43 	LAW_SIZE_16G,
44 	LAW_SIZE_32G,
45 };
46 
47 #define law_size_bits(sz)	(__ilog2_u64(sz) - 1)
48 #define lawar_size(x)	(1ULL << ((x & 0x3f) + 1))
49 
50 #ifdef CONFIG_FSL_CORENET
51 enum law_trgt_if {
52 	LAW_TRGT_IF_PCIE_1 = 0x00,
53 	LAW_TRGT_IF_PCIE_2 = 0x01,
54 	LAW_TRGT_IF_PCIE_3 = 0x02,
55 	LAW_TRGT_IF_PCIE_4 = 0x03,
56 	LAW_TRGT_IF_RIO_1 = 0x08,
57 	LAW_TRGT_IF_RIO_2 = 0x09,
58 
59 	LAW_TRGT_IF_DDR_1 = 0x10,
60 	LAW_TRGT_IF_DDR_2 = 0x11,	/* 2nd controller */
61 	LAW_TRGT_IF_DDR_3 = 0x12,
62 	LAW_TRGT_IF_DDR_4 = 0x13,
63 	LAW_TRGT_IF_DDR_INTRLV = 0x14,
64 	LAW_TRGT_IF_DDR_INTLV_34 = 0x15,
65 	LAW_TRGT_IF_DDR_INTLV_123 = 0x17,
66 	LAW_TRGT_IF_DDR_INTLV_1234 = 0x16,
67 	LAW_TRGT_IF_BMAN = 0x18,
68 	LAW_TRGT_IF_DCSR = 0x1d,
69 	LAW_TRGT_IF_CCSR = 0x1e,
70 	LAW_TRGT_IF_LBC = 0x1f,
71 	LAW_TRGT_IF_QMAN = 0x3c,
72 
73 	LAW_TRGT_IF_MAPLE = 0x50,
74 };
75 #define LAW_TRGT_IF_DDR		LAW_TRGT_IF_DDR_1
76 #define LAW_TRGT_IF_IFC		LAW_TRGT_IF_LBC
77 #else
78 enum law_trgt_if {
79 	LAW_TRGT_IF_PCI = 0x00,
80 	LAW_TRGT_IF_PCI_2 = 0x01,
81 #ifndef CONFIG_ARCH_MPC8641
82 	LAW_TRGT_IF_PCIE_1 = 0x02,
83 #endif
84 #if defined(CONFIG_ARCH_BSC9131) || defined(CONFIG_ARCH_BSC9132)
85 	LAW_TRGT_IF_OCN_DSP = 0x03,
86 #else
87 #if !defined(CONFIG_ARCH_MPC8572) && !defined(CONFIG_ARCH_P2020)
88 	LAW_TRGT_IF_PCIE_3 = 0x03,
89 #endif
90 #endif
91 	LAW_TRGT_IF_LBC = 0x04,
92 	LAW_TRGT_IF_CCSR = 0x08,
93 	LAW_TRGT_IF_DSP_CCSR = 0x09,
94 	LAW_TRGT_IF_PLATFORM_SRAM = 0x0a,
95 	LAW_TRGT_IF_DDR_INTRLV = 0x0b,
96 	LAW_TRGT_IF_RIO = 0x0c,
97 #if defined(CONFIG_ARCH_BSC9132)
98 	LAW_TRGT_IF_CLASS_DSP = 0x0d,
99 #else
100 	LAW_TRGT_IF_RIO_2 = 0x0d,
101 #endif
102 	LAW_TRGT_IF_DPAA_SWP_SRAM = 0x0e,
103 	LAW_TRGT_IF_DDR = 0x0f,
104 	LAW_TRGT_IF_DDR_2 = 0x16,	/* 2nd controller */
105 	/* place holder for 3-way and 4-way interleaving */
106 	LAW_TRGT_IF_DDR_3,
107 	LAW_TRGT_IF_DDR_4,
108 	LAW_TRGT_IF_DDR_INTLV_34,
109 	LAW_TRGT_IF_DDR_INTLV_123,
110 	LAW_TRGT_IF_DDR_INTLV_1234,
111 };
112 #define LAW_TRGT_IF_DDR_1	LAW_TRGT_IF_DDR
113 #define LAW_TRGT_IF_PCI_1	LAW_TRGT_IF_PCI
114 #define LAW_TRGT_IF_PCIX	LAW_TRGT_IF_PCI
115 #define LAW_TRGT_IF_PCIE_2	LAW_TRGT_IF_PCI_2
116 #define LAW_TRGT_IF_RIO_1	LAW_TRGT_IF_RIO
117 #define LAW_TRGT_IF_IFC		LAW_TRGT_IF_LBC
118 
119 #ifdef CONFIG_ARCH_MPC8641
120 #define LAW_TRGT_IF_PCIE_1	LAW_TRGT_IF_PCI
121 #endif
122 
123 #if defined(CONFIG_ARCH_MPC8572) || defined(CONFIG_ARCH_P2020)
124 #define LAW_TRGT_IF_PCIE_3	LAW_TRGT_IF_PCI
125 #endif
126 #endif /* CONFIG_FSL_CORENET */
127 
128 struct law_entry {
129 	int index;
130 	phys_addr_t addr;
131 	enum law_size size;
132 	enum law_trgt_if trgt_id;
133 };
134 
135 extern void set_law(u8 idx, phys_addr_t addr, enum law_size sz, enum law_trgt_if id);
136 extern int set_next_law(phys_addr_t addr, enum law_size sz, enum law_trgt_if id);
137 extern int set_last_law(phys_addr_t addr, enum law_size sz, enum law_trgt_if id);
138 extern int set_ddr_laws(u64 start, u64 sz, enum law_trgt_if id);
139 extern struct law_entry find_law(phys_addr_t addr);
140 extern void disable_law(u8 idx);
141 extern void init_laws(void);
142 extern void print_laws(void);
143 
144 /* define in board code */
145 extern struct law_entry law_table[];
146 extern int num_law_entries;
147 #endif
148