1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * MMC definitions for OMAP2
4 *
5 * Copyright (C) 2006 Nokia Corporation
6 */
7
8 /*
9 * struct omap_hsmmc_dev_attr.flags possibilities
10 *
11 * OMAP_HSMMC_SUPPORTS_DUAL_VOLT: Some HSMMC controller instances can
12 * operate with either 1.8Vdc or 3.0Vdc card voltages; this flag
13 * should be set if this is the case. See for example Section 22.5.3
14 * "MMC/SD/SDIO1 Bus Voltage Selection" of the OMAP34xx Multimedia
15 * Device Silicon Revision 3.1.x Revision ZR (July 2011) (SWPU223R).
16 *
17 * OMAP_HSMMC_BROKEN_MULTIBLOCK_READ: Multiple-block read transfers
18 * don't work correctly on some MMC controller instances on some
19 * OMAP3 SoCs; this flag should be set if this is the case. See
20 * for example Advisory 2.1.1.128 "MMC: Multiple Block Read
21 * Operation Issue" in _OMAP3530/3525/3515/3503 Silicon Errata_
22 * Revision F (October 2010) (SPRZ278F).
23 */
24 #define OMAP_HSMMC_SUPPORTS_DUAL_VOLT BIT(0)
25 #define OMAP_HSMMC_BROKEN_MULTIBLOCK_READ BIT(1)
26 #define OMAP_HSMMC_SWAKEUP_MISSING BIT(2)
27
28 struct omap_hsmmc_dev_attr {
29 u8 flags;
30 };
31
32 struct mmc_card;
33
34 struct omap_hsmmc_platform_data {
35 /* back-link to device */
36 struct device *dev;
37
38 /* set if your board has components or wiring that limits the
39 * maximum frequency on the MMC bus */
40 unsigned int max_freq;
41
42 /* Integrating attributes from the omap_hwmod layer */
43 u8 controller_flags;
44
45 /* Register offset deviation */
46 u16 reg_offset;
47
48 /*
49 * 4/8 wires and any additional host capabilities
50 * need to OR'd all capabilities (ref. linux/mmc/host.h)
51 */
52 u32 caps; /* Used for the MMC driver on 2430 and later */
53 u32 pm_caps; /* PM capabilities of the mmc */
54
55 /* nonremovable e.g. eMMC */
56 unsigned nonremovable:1;
57
58 /* eMMC does not handle power off when not in sleep state */
59 unsigned no_regulator_off_init:1;
60
61 /* we can put the features above into this variable */
62 #define HSMMC_HAS_PBIAS (1 << 0)
63 #define HSMMC_HAS_UPDATED_RESET (1 << 1)
64 #define HSMMC_HAS_HSPE_SUPPORT (1 << 2)
65 unsigned features;
66
67 /* string specifying a particular variant of hardware */
68 char *version;
69
70 /* if we have special card, init it using this callback */
71 void (*init_card)(struct mmc_card *card);
72
73 const char *name;
74 u32 ocr_mask;
75 };