2 * Copyright 2010 MontaVista Software, LLC.
4 * Author: Anton Vorontsov <avorontsov@ru.mvista.com>
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.
11 #ifndef _DRIVERS_MMC_SDHCI_PLTFM_H
12 #define _DRIVERS_MMC_SDHCI_PLTFM_H
14 #include <linux/clk.h>
15 #include <linux/platform_device.h>
18 struct sdhci_pltfm_data
{
19 struct sdhci_ops
*ops
;
23 struct sdhci_pltfm_host
{
25 void *priv
; /* to handle quirks across io-accessor calls */
27 /* migrate from sdhci_of_host */
32 #ifdef CONFIG_MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER
34 * These accessors are designed for big endian hosts doing I/O to
35 * little endian controllers incorporating a 32-bit hardware byte swapper.
37 static inline u32
sdhci_be32bs_readl(struct sdhci_host
*host
, int reg
)
39 return in_be32(host
->ioaddr
+ reg
);
42 static inline u16
sdhci_be32bs_readw(struct sdhci_host
*host
, int reg
)
44 return in_be16(host
->ioaddr
+ (reg
^ 0x2));
47 static inline u8
sdhci_be32bs_readb(struct sdhci_host
*host
, int reg
)
49 return in_8(host
->ioaddr
+ (reg
^ 0x3));
52 static inline void sdhci_be32bs_writel(struct sdhci_host
*host
,
55 out_be32(host
->ioaddr
+ reg
, val
);
58 static inline void sdhci_be32bs_writew(struct sdhci_host
*host
,
61 struct sdhci_pltfm_host
*pltfm_host
= sdhci_priv(host
);
62 int base
= reg
& ~0x3;
63 int shift
= (reg
& 0x2) * 8;
66 case SDHCI_TRANSFER_MODE
:
68 * Postpone this write, we must do it together with a
69 * command write that is down below.
71 pltfm_host
->xfer_mode_shadow
= val
;
74 sdhci_be32bs_writel(host
,
75 val
<< 16 | pltfm_host
->xfer_mode_shadow
,
79 clrsetbits_be32(host
->ioaddr
+ base
, 0xffff << shift
, val
<< shift
);
82 static inline void sdhci_be32bs_writeb(struct sdhci_host
*host
, u8 val
, int reg
)
84 int base
= reg
& ~0x3;
85 int shift
= (reg
& 0x3) * 8;
87 clrsetbits_be32(host
->ioaddr
+ base
, 0xff << shift
, val
<< shift
);
89 #endif /* CONFIG_MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER */
91 extern void sdhci_get_of_property(struct platform_device
*pdev
);
93 extern struct sdhci_host
*sdhci_pltfm_init(struct platform_device
*pdev
,
94 struct sdhci_pltfm_data
*pdata
);
95 extern void sdhci_pltfm_free(struct platform_device
*pdev
);
97 extern int sdhci_pltfm_register(struct platform_device
*pdev
,
98 struct sdhci_pltfm_data
*pdata
);
99 extern int sdhci_pltfm_unregister(struct platform_device
*pdev
);
102 extern const struct dev_pm_ops sdhci_pltfm_pmops
;
103 #define SDHCI_PLTFM_PMOPS (&sdhci_pltfm_pmops)
105 #define SDHCI_PLTFM_PMOPS NULL
108 #endif /* _DRIVERS_MMC_SDHCI_PLTFM_H */