ppc/pnv: Add a HIOMAP erase command
[qemu.git] / include / hw / misc / allwinner-h3-dramc.h
1 /*
2 * Allwinner H3 SDRAM Controller emulation
3 *
4 * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
5 *
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program 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
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20 #ifndef HW_MISC_ALLWINNER_H3_DRAMC_H
21 #define HW_MISC_ALLWINNER_H3_DRAMC_H
22
23 #include "qom/object.h"
24 #include "hw/sysbus.h"
25 #include "exec/hwaddr.h"
26
27 /**
28 * Constants
29 * @{
30 */
31
32 /** Highest register address used by DRAMCOM module */
33 #define AW_H3_DRAMCOM_REGS_MAXADDR (0x804)
34
35 /** Total number of known DRAMCOM registers */
36 #define AW_H3_DRAMCOM_REGS_NUM (AW_H3_DRAMCOM_REGS_MAXADDR / \
37 sizeof(uint32_t))
38
39 /** Highest register address used by DRAMCTL module */
40 #define AW_H3_DRAMCTL_REGS_MAXADDR (0x88c)
41
42 /** Total number of known DRAMCTL registers */
43 #define AW_H3_DRAMCTL_REGS_NUM (AW_H3_DRAMCTL_REGS_MAXADDR / \
44 sizeof(uint32_t))
45
46 /** Highest register address used by DRAMPHY module */
47 #define AW_H3_DRAMPHY_REGS_MAXADDR (0x4)
48
49 /** Total number of known DRAMPHY registers */
50 #define AW_H3_DRAMPHY_REGS_NUM (AW_H3_DRAMPHY_REGS_MAXADDR / \
51 sizeof(uint32_t))
52
53 /** @} */
54
55 /**
56 * Object model
57 * @{
58 */
59
60 #define TYPE_AW_H3_DRAMC "allwinner-h3-dramc"
61 #define AW_H3_DRAMC(obj) \
62 OBJECT_CHECK(AwH3DramCtlState, (obj), TYPE_AW_H3_DRAMC)
63
64 /** @} */
65
66 /**
67 * Allwinner H3 SDRAM Controller object instance state.
68 */
69 typedef struct AwH3DramCtlState {
70 /*< private >*/
71 SysBusDevice parent_obj;
72 /*< public >*/
73
74 /** Physical base address for start of RAM */
75 hwaddr ram_addr;
76
77 /** Total RAM size in megabytes */
78 uint32_t ram_size;
79
80 /**
81 * @name Memory Regions
82 * @{
83 */
84
85 MemoryRegion row_mirror; /**< Simulates rows for RAM size detection */
86 MemoryRegion row_mirror_alias; /**< Alias of the row which is mirrored */
87 MemoryRegion dramcom_iomem; /**< DRAMCOM module I/O registers */
88 MemoryRegion dramctl_iomem; /**< DRAMCTL module I/O registers */
89 MemoryRegion dramphy_iomem; /**< DRAMPHY module I/O registers */
90
91 /** @} */
92
93 /**
94 * @name Hardware Registers
95 * @{
96 */
97
98 uint32_t dramcom[AW_H3_DRAMCOM_REGS_NUM]; /**< Array of DRAMCOM registers */
99 uint32_t dramctl[AW_H3_DRAMCTL_REGS_NUM]; /**< Array of DRAMCTL registers */
100 uint32_t dramphy[AW_H3_DRAMPHY_REGS_NUM] ;/**< Array of DRAMPHY registers */
101
102 /** @} */
103
104 } AwH3DramCtlState;
105
106 #endif /* HW_MISC_ALLWINNER_H3_DRAMC_H */