Commit | Line | Data |
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515033f9 AV |
1 | /* |
2 | * Copyright 2010 MontaVista Software, LLC. | |
3 | * | |
4 | * Author: Anton Vorontsov <avorontsov@ru.mvista.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 version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | */ | |
10 | ||
11 | #ifndef _DRIVERS_MMC_SDHCI_PLTFM_H | |
12 | #define _DRIVERS_MMC_SDHCI_PLTFM_H | |
13 | ||
4b711cb1 | 14 | #include <linux/clk.h> |
85d6509d | 15 | #include <linux/platform_device.h> |
f0de8369 | 16 | #include "sdhci.h" |
20b1597b | 17 | |
94cc6a86 | 18 | struct sdhci_pltfm_data { |
ad1df8c2 | 19 | const struct sdhci_ops *ops; |
94cc6a86 | 20 | unsigned int quirks; |
ad82ab65 | 21 | unsigned int quirks2; |
94cc6a86 SG |
22 | }; |
23 | ||
4b711cb1 WS |
24 | struct sdhci_pltfm_host { |
25 | struct clk *clk; | |
e149860d | 26 | void *priv; /* to handle quirks across io-accessor calls */ |
e307148f SG |
27 | |
28 | /* migrate from sdhci_of_host */ | |
29 | unsigned int clock; | |
30 | u16 xfer_mode_shadow; | |
0e748234 CD |
31 | |
32 | unsigned long private[0] ____cacheline_aligned; | |
4b711cb1 WS |
33 | }; |
34 | ||
38576af1 | 35 | #ifdef CONFIG_MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER |
f0de8369 SG |
36 | /* |
37 | * These accessors are designed for big endian hosts doing I/O to | |
38 | * little endian controllers incorporating a 32-bit hardware byte swapper. | |
39 | */ | |
40 | static inline u32 sdhci_be32bs_readl(struct sdhci_host *host, int reg) | |
41 | { | |
42 | return in_be32(host->ioaddr + reg); | |
43 | } | |
44 | ||
45 | static inline u16 sdhci_be32bs_readw(struct sdhci_host *host, int reg) | |
46 | { | |
47 | return in_be16(host->ioaddr + (reg ^ 0x2)); | |
48 | } | |
49 | ||
50 | static inline u8 sdhci_be32bs_readb(struct sdhci_host *host, int reg) | |
51 | { | |
52 | return in_8(host->ioaddr + (reg ^ 0x3)); | |
53 | } | |
54 | ||
55 | static inline void sdhci_be32bs_writel(struct sdhci_host *host, | |
56 | u32 val, int reg) | |
57 | { | |
58 | out_be32(host->ioaddr + reg, val); | |
59 | } | |
60 | ||
61 | static inline void sdhci_be32bs_writew(struct sdhci_host *host, | |
62 | u16 val, int reg) | |
63 | { | |
64 | struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); | |
65 | int base = reg & ~0x3; | |
66 | int shift = (reg & 0x2) * 8; | |
67 | ||
68 | switch (reg) { | |
69 | case SDHCI_TRANSFER_MODE: | |
70 | /* | |
71 | * Postpone this write, we must do it together with a | |
72 | * command write that is down below. | |
73 | */ | |
74 | pltfm_host->xfer_mode_shadow = val; | |
75 | return; | |
76 | case SDHCI_COMMAND: | |
77 | sdhci_be32bs_writel(host, | |
78 | val << 16 | pltfm_host->xfer_mode_shadow, | |
79 | SDHCI_TRANSFER_MODE); | |
80 | return; | |
81 | } | |
82 | clrsetbits_be32(host->ioaddr + base, 0xffff << shift, val << shift); | |
83 | } | |
84 | ||
85 | static inline void sdhci_be32bs_writeb(struct sdhci_host *host, u8 val, int reg) | |
86 | { | |
87 | int base = reg & ~0x3; | |
88 | int shift = (reg & 0x3) * 8; | |
89 | ||
90 | clrsetbits_be32(host->ioaddr + base , 0xff << shift, val << shift); | |
91 | } | |
92 | #endif /* CONFIG_MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER */ | |
38576af1 SG |
93 | |
94 | extern void sdhci_get_of_property(struct platform_device *pdev); | |
95 | ||
85d6509d | 96 | extern struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev, |
0e748234 CD |
97 | const struct sdhci_pltfm_data *pdata, |
98 | size_t priv_size); | |
85d6509d SG |
99 | extern void sdhci_pltfm_free(struct platform_device *pdev); |
100 | ||
101 | extern int sdhci_pltfm_register(struct platform_device *pdev, | |
0e748234 CD |
102 | const struct sdhci_pltfm_data *pdata, |
103 | size_t priv_size); | |
85d6509d SG |
104 | extern int sdhci_pltfm_unregister(struct platform_device *pdev); |
105 | ||
d005d943 LPC |
106 | extern unsigned int sdhci_pltfm_clk_get_max_clock(struct sdhci_host *host); |
107 | ||
0e748234 CD |
108 | static inline void *sdhci_pltfm_priv(struct sdhci_pltfm_host *host) |
109 | { | |
110 | return (void *)host->private; | |
111 | } | |
112 | ||
85d6509d | 113 | #ifdef CONFIG_PM |
d433dc63 DA |
114 | extern int sdhci_pltfm_suspend(struct device *dev); |
115 | extern int sdhci_pltfm_resume(struct device *dev); | |
29495aa0 ML |
116 | extern const struct dev_pm_ops sdhci_pltfm_pmops; |
117 | #define SDHCI_PLTFM_PMOPS (&sdhci_pltfm_pmops) | |
118 | #else | |
119 | #define SDHCI_PLTFM_PMOPS NULL | |
85d6509d | 120 | #endif |
20b1597b | 121 | |
515033f9 | 122 | #endif /* _DRIVERS_MMC_SDHCI_PLTFM_H */ |