xref: /openbmc/qemu/include/hw/sd/npcm7xx_sdhci.h (revision c79aa350)
1 /*
2  * NPCM7xx SD-3.0 / eMMC-4.51 Host Controller
3  *
4  * Copyright (c) 2021 Google LLC
5  *
6  * This program is free software; you can redistribute it and/or modify it
7  * under the terms of the GNU General Public License as published by the
8  * 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, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14  * for more details.
15  */
16 
17 #ifndef NPCM7XX_SDHCI_H
18 #define NPCM7XX_SDHCI_H
19 
20 #include "hw/sd/sdhci.h"
21 #include "qom/object.h"
22 
23 #define TYPE_NPCM7XX_SDHCI "npcm7xx.sdhci"
24 #define NPCM7XX_PRSTVALS_SIZE 6
25 #define NPCM7XX_PRSTVALS 0x60
26 #define NPCM7XX_PRSTVALS_0 0x0
27 #define NPCM7XX_PRSTVALS_1 0x2
28 #define NPCM7XX_PRSTVALS_2 0x4
29 #define NPCM7XX_PRSTVALS_3 0x6
30 #define NPCM7XX_PRSTVALS_4 0x8
31 #define NPCM7XX_PRSTVALS_5 0xA
32 #define NPCM7XX_BOOTTOCTRL 0x10
33 #define NPCM7XX_SDHCI_REGSIZE 0x20
34 
35 #define NPCM7XX_PRSNTS_RESET 0x04A00000
36 #define NPCM7XX_BLKGAP_RESET 0x80
37 #define NPCM7XX_CAPAB_RESET 0x0100200161EE0399
38 #define NPCM7XX_MAXCURR_RESET 0x0000000000000005
39 #define NPCM7XX_HCVER_RESET 0x1002
40 
41 #define NPCM7XX_PRSTVALS_0_RESET 0x0040
42 #define NPCM7XX_PRSTVALS_1_RESET 0x0001
43 #define NPCM7XX_PRSTVALS_3_RESET 0x0001
44 
45 OBJECT_DECLARE_SIMPLE_TYPE(NPCM7xxSDHCIState, NPCM7XX_SDHCI)
46 
47 typedef struct NPCM7xxRegs {
48     /* Preset Values Register Field, read-only */
49     uint16_t prstvals[NPCM7XX_PRSTVALS_SIZE];
50     /* Boot Timeout Control Register, read-write */
51     uint32_t boottoctrl;
52 } NPCM7xxRegisters;
53 
54 struct NPCM7xxSDHCIState {
55     SysBusDevice parent;
56 
57     MemoryRegion container;
58     MemoryRegion iomem;
59     BusState *bus;
60     NPCM7xxRegisters regs;
61 
62     SDHCIState sdhci;
63 };
64 
65 #endif /* NPCM7XX_SDHCI_H */
66