xref: /openbmc/qemu/include/hw/ppc/pnv_xscom.h (revision 59a3a1c0)
1 /*
2  * QEMU PowerPC PowerNV XSCOM bus definitions
3  *
4  * Copyright (c) 2016, IBM Corporation.
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #ifndef PPC_PNV_XSCOM_H
21 #define PPC_PNV_XSCOM_H
22 
23 #include "qom/object.h"
24 
25 typedef struct PnvXScomInterface {
26     Object parent;
27 } PnvXScomInterface;
28 
29 #define TYPE_PNV_XSCOM_INTERFACE "pnv-xscom-interface"
30 #define PNV_XSCOM_INTERFACE(obj) \
31      OBJECT_CHECK(PnvXScomInterface, (obj), TYPE_PNV_XSCOM_INTERFACE)
32 #define PNV_XSCOM_INTERFACE_CLASS(klass)                \
33     OBJECT_CLASS_CHECK(PnvXScomInterfaceClass, (klass), \
34                        TYPE_PNV_XSCOM_INTERFACE)
35 #define PNV_XSCOM_INTERFACE_GET_CLASS(obj) \
36      OBJECT_GET_CLASS(PnvXScomInterfaceClass, (obj), TYPE_PNV_XSCOM_INTERFACE)
37 
38 typedef struct PnvXScomInterfaceClass {
39     InterfaceClass parent;
40     int (*dt_xscom)(PnvXScomInterface *dev, void *fdt, int offset);
41 } PnvXScomInterfaceClass;
42 
43 /*
44  * Layout of the XSCOM PCB addresses of EX core 1 (POWER 8)
45  *
46  *   GPIO        0x1100xxxx
47  *   SCOM        0x1101xxxx
48  *   OHA         0x1102xxxx
49  *   CLOCK CTL   0x1103xxxx
50  *   FIR         0x1104xxxx
51  *   THERM       0x1105xxxx
52  *   <reserved>  0x1106xxxx
53  *               ..
54  *               0x110Exxxx
55  *   PCB SLAVE   0x110Fxxxx
56  */
57 
58 #define PNV_XSCOM_EX_CORE_BASE    0x10000000ull
59 
60 #define PNV_XSCOM_EX_BASE(core) \
61     (PNV_XSCOM_EX_CORE_BASE | ((uint64_t)(core) << 24))
62 #define PNV_XSCOM_EX_SIZE         0x100000
63 
64 #define PNV_XSCOM_LPC_BASE        0xb0020
65 #define PNV_XSCOM_LPC_SIZE        0x4
66 
67 #define PNV_XSCOM_PSIHB_BASE      0x2010900
68 #define PNV_XSCOM_PSIHB_SIZE      0x20
69 
70 #define PNV_XSCOM_OCC_BASE        0x0066000
71 #define PNV_XSCOM_OCC_SIZE        0x6000
72 
73 #define PNV9_XSCOM_EC_BASE(core) \
74     ((uint64_t)(((core) & 0x1F) + 0x20) << 24)
75 #define PNV9_XSCOM_EC_SIZE        0x100000
76 
77 #define PNV9_XSCOM_EQ_BASE(core) \
78     ((uint64_t)(((core) & 0x1C) + 0x40) << 22)
79 #define PNV9_XSCOM_EQ_SIZE        0x100000
80 
81 #define PNV9_XSCOM_OCC_BASE       PNV_XSCOM_OCC_BASE
82 #define PNV9_XSCOM_OCC_SIZE       0x8000
83 
84 #define PNV9_XSCOM_PSIHB_BASE     0x5012900
85 #define PNV9_XSCOM_PSIHB_SIZE     0x100
86 
87 #define PNV9_XSCOM_XIVE_BASE      0x5013000
88 #define PNV9_XSCOM_XIVE_SIZE      0x300
89 
90 extern void pnv_xscom_realize(PnvChip *chip, uint64_t size, Error **errp);
91 extern int pnv_dt_xscom(PnvChip *chip, void *fdt, int offset);
92 
93 extern void pnv_xscom_add_subregion(PnvChip *chip, hwaddr offset,
94                                     MemoryRegion *mr);
95 extern void pnv_xscom_region_init(MemoryRegion *mr,
96                                   struct Object *owner,
97                                   const MemoryRegionOps *ops,
98                                   void *opaque,
99                                   const char *name,
100                                   uint64_t size);
101 
102 #endif /* PPC_PNV_XSCOM_H */
103