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9b6b563c PM |
1 | #ifndef _POWERPC_PROM_H |
2 | #define _POWERPC_PROM_H | |
3 | #ifdef __KERNEL__ | |
4 | ||
5 | /* | |
6 | * Definitions for talking to the Open Firmware PROM on | |
7 | * Power Macintosh computers. | |
8 | * | |
9 | * Copyright (C) 1996-2005 Paul Mackerras. | |
10 | * | |
11 | * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp. | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or | |
14 | * modify it under the terms of the GNU General Public License | |
15 | * as published by the Free Software Foundation; either version | |
16 | * 2 of the License, or (at your option) any later version. | |
17 | */ | |
18 | #include <linux/types.h> | |
99ddef9b | 19 | #include <asm/irq.h> |
60063497 | 20 | #include <linux/atomic.h> |
9b6b563c | 21 | |
5c19c5c6 RH |
22 | /* These includes should be removed once implicit includes are cleaned up. */ |
23 | #include <linux/of.h> | |
24 | #include <linux/of_fdt.h> | |
25 | #include <linux/of_address.h> | |
26 | #include <linux/of_irq.h> | |
27 | #include <linux/platform_device.h> | |
9b6b563c | 28 | |
c3fc952d RH |
29 | #define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */ |
30 | #define OF_DT_END_NODE 0x2 /* End node */ | |
31 | #define OF_DT_PROP 0x3 /* Property: name off, size, | |
32 | * content */ | |
33 | #define OF_DT_NOP 0x4 /* nop */ | |
34 | #define OF_DT_END 0x9 | |
35 | ||
36 | #define OF_DT_VERSION 0x10 | |
37 | ||
38 | /* | |
39 | * This is what gets passed to the kernel by prom_init or kexec | |
40 | * | |
41 | * The dt struct contains the device tree structure, full pathes and | |
42 | * property contents. The dt strings contain a separate block with just | |
43 | * the strings for the property names, and is fully page aligned and | |
44 | * self contained in a page, so that it can be kept around by the kernel, | |
45 | * each property name appears only once in this page (cheap compression) | |
46 | * | |
47 | * the mem_rsvmap contains a map of reserved ranges of physical memory, | |
48 | * passing it here instead of in the device-tree itself greatly simplifies | |
49 | * the job of everybody. It's just a list of u64 pairs (base/size) that | |
50 | * ends when size is 0 | |
51 | */ | |
52 | struct boot_param_header { | |
53 | __be32 magic; /* magic word OF_DT_HEADER */ | |
54 | __be32 totalsize; /* total size of DT block */ | |
55 | __be32 off_dt_struct; /* offset to structure */ | |
56 | __be32 off_dt_strings; /* offset to strings */ | |
57 | __be32 off_mem_rsvmap; /* offset to memory reserve map */ | |
58 | __be32 version; /* format version */ | |
59 | __be32 last_comp_version; /* last compatible version */ | |
60 | /* version 2 fields below */ | |
61 | __be32 boot_cpuid_phys; /* Physical CPU id we're booting on */ | |
62 | /* version 3 fields below */ | |
63 | __be32 dt_strings_size; /* size of the DT strings block */ | |
64 | /* version 17 fields below */ | |
65 | __be32 dt_struct_size; /* size of the DT structure block */ | |
66 | }; | |
67 | ||
d1405b86 | 68 | /* |
d2dd482b BH |
69 | * OF address retreival & translation |
70 | */ | |
71 | ||
d4ad66fa JK |
72 | /* Parse the ibm,dma-window property of an OF node into the busno, phys and |
73 | * size parameters. | |
74 | */ | |
2083f681 AB |
75 | void of_parse_dma_window(struct device_node *dn, const __be32 *dma_window, |
76 | unsigned long *busno, unsigned long *phys, | |
77 | unsigned long *size); | |
d4ad66fa | 78 | |
129ac799 GL |
79 | extern void of_instantiate_rtc(void); |
80 | ||
b37193b7 BH |
81 | extern int of_get_ibm_chip_id(struct device_node *np); |
82 | ||
f5949720 NF |
83 | /* The of_drconf_cell struct defines the layout of the LMB array |
84 | * specified in the device tree property | |
85 | * ibm,dynamic-reconfiguration-memory/ibm,dynamic-memory | |
86 | */ | |
87 | struct of_drconf_cell { | |
88 | u64 base_addr; | |
89 | u32 drc_index; | |
90 | u32 reserved; | |
91 | u32 aa_index; | |
92 | u32 flags; | |
93 | }; | |
94 | ||
95 | #define DRCONF_MEM_ASSIGNED 0x00000008 | |
96 | #define DRCONF_MEM_AI_INVALID 0x00000040 | |
97 | #define DRCONF_MEM_RESERVED 0x00000080 | |
98 | ||
530b5e14 NF |
99 | /* |
100 | * There are two methods for telling firmware what our capabilities are. | |
101 | * Newer machines have an "ibm,client-architecture-support" method on the | |
102 | * root node. For older machines, we have to call the "process-elf-header" | |
103 | * method in the /packages/elf-loader node, passing it a fake 32-bit | |
104 | * ELF header containing a couple of PT_NOTE sections that contain | |
105 | * structures that contain various information. | |
106 | */ | |
107 | ||
108 | /* New method - extensible architecture description vector. */ | |
109 | ||
110 | /* Option vector bits - generic bits in byte 1 */ | |
111 | #define OV_IGNORE 0x80 /* ignore this vector */ | |
112 | #define OV_CESSATION_POLICY 0x40 /* halt if unsupported option present*/ | |
113 | ||
114 | /* Option vector 1: processor architectures supported */ | |
115 | #define OV1_PPC_2_00 0x80 /* set if we support PowerPC 2.00 */ | |
116 | #define OV1_PPC_2_01 0x40 /* set if we support PowerPC 2.01 */ | |
117 | #define OV1_PPC_2_02 0x20 /* set if we support PowerPC 2.02 */ | |
118 | #define OV1_PPC_2_03 0x10 /* set if we support PowerPC 2.03 */ | |
119 | #define OV1_PPC_2_04 0x08 /* set if we support PowerPC 2.04 */ | |
120 | #define OV1_PPC_2_05 0x04 /* set if we support PowerPC 2.05 */ | |
121 | #define OV1_PPC_2_06 0x02 /* set if we support PowerPC 2.06 */ | |
122 | #define OV1_PPC_2_07 0x01 /* set if we support PowerPC 2.07 */ | |
123 | ||
124 | /* Option vector 2: Open Firmware options supported */ | |
125 | #define OV2_REAL_MODE 0x20 /* set if we want OF in real mode */ | |
126 | ||
127 | /* Option vector 3: processor options supported */ | |
128 | #define OV3_FP 0x80 /* floating point */ | |
129 | #define OV3_VMX 0x40 /* VMX/Altivec */ | |
130 | #define OV3_DFP 0x20 /* decimal FP */ | |
131 | ||
132 | /* Option vector 4: IBM PAPR implementation */ | |
133 | #define OV4_MIN_ENT_CAP 0x01 /* minimum VP entitled capacity */ | |
134 | ||
f0ff7eb4 NF |
135 | /* Option vector 5: PAPR/OF options supported |
136 | * These bits are also used in firmware_has_feature() to validate | |
137 | * the capabilities reported for vector 5 in the device tree so we | |
138 | * encode the vector index in the define and use the OV5_FEAT() | |
139 | * and OV5_INDX() macros to extract the desired information. | |
140 | */ | |
141 | #define OV5_FEAT(x) ((x) & 0xff) | |
142 | #define OV5_INDX(x) ((x) >> 8) | |
143 | #define OV5_LPAR 0x0280 /* logical partitioning supported */ | |
144 | #define OV5_SPLPAR 0x0240 /* shared-processor LPAR supported */ | |
530b5e14 | 145 | /* ibm,dynamic-reconfiguration-memory property supported */ |
f0ff7eb4 NF |
146 | #define OV5_DRCONF_MEMORY 0x0220 |
147 | #define OV5_LARGE_PAGES 0x0210 /* large pages supported */ | |
148 | #define OV5_DONATE_DEDICATE_CPU 0x0202 /* donate dedicated CPU support */ | |
149 | #define OV5_MSI 0x0201 /* PCIe/MSI support */ | |
150 | #define OV5_CMO 0x0480 /* Cooperative Memory Overcommitment */ | |
151 | #define OV5_XCMO 0x0440 /* Page Coalescing */ | |
152 | #define OV5_TYPE1_AFFINITY 0x0580 /* Type 1 NUMA affinity */ | |
5d88aa85 | 153 | #define OV5_PRRN 0x0540 /* Platform Resource Reassignment */ |
f0ff7eb4 NF |
154 | #define OV5_PFO_HW_RNG 0x0E80 /* PFO Random Number Generator */ |
155 | #define OV5_PFO_HW_842 0x0E40 /* PFO Compression Accelerator */ | |
156 | #define OV5_PFO_HW_ENCR 0x0E20 /* PFO Encryption Accelerator */ | |
157 | #define OV5_SUB_PROCESSORS 0x0F01 /* 1,2,or 4 Sub-Processors supported */ | |
530b5e14 NF |
158 | |
159 | /* Option Vector 6: IBM PAPR hints */ | |
160 | #define OV6_LINUX 0x02 /* Linux is our OS */ | |
161 | ||
9b6b563c PM |
162 | #endif /* __KERNEL__ */ |
163 | #endif /* _POWERPC_PROM_H */ |